MI 611-208

Instruction

June 2011

Electrochemical Products
Safety Information

MI 611-208 – June 2011

Contents
1. General Warnings ............................................................................................................. 1
Local Code Warning ................................................................................................................. 1
Parts Replacement Warning ...................................................................................................... 1
2. 875 Series Analyzers .......................................................................................................... 3
Analyzer Identification .............................................................................................................. 3
Hazardous Location Code ......................................................................................................... 4
Entity Parameters for 875PH-..N .............................................................................................. 4
Entity Parameters for 875EC-..N .............................................................................................. 4
Entity Parameters for 875CR-..N .............................................................................................. 5
Panel-Mounted Enclosure Warning .......................................................................................... 5
Electrical Connection Warning ................................................................................................. 5
Grounding Warning ................................................................................................................. 5
Origin Code .............................................................................................................................. 5
Supply Voltage Operative Limits ............................................................................................... 5
Alarm Contact Limits ............................................................................................................... 6
Ambient Temperature Limits .................................................................................................... 6
Installation Instructions ............................................................................................................ 6
CE Compliance ......................................................................................................................... 6
3. Sensors .............................................................................................................................. 7
Dangers, Warnings, and Cautions ............................................................................................. 7
Origin Code .............................................................................................................................. 7871PH ...................................................................................................................................... 8
Sensor Identification ............................................................................................................ 8
Electrical Safety Design Code ............................................................................................... 8
Electromagnetic Compatibility (EMC) .............................................................................. 10
Pressure and Temperature Limits ....................................................................................... 10
Process Wetted Materials .................................................................................................... 12871A ....................................................................................................................................... 14
Sensor Identification .......................................................................................................... 14
Electrical Safety Design Code ............................................................................................. 14
Electromagnetic Compatibility (EMC) .............................................................................. 15
Pressure and Temperature Limits ....................................................................................... 15
Process Wetted Parts .......................................................................................................... 15
PH10 and ORP10 .................................................................................................................. 17
Sensor Identification .......................................................................................................... 17
Electrical Safety Design Code ............................................................................................. 17iii

MI 611-208 – June 2011

Contents

Electromagnetic Compatibility (EMC) .............................................................................. 18
Process Pressure Limits ....................................................................................................... 18
Process Temperature Limits ............................................................................................... 18
Process Wetted Parts .......................................................................................................... 20
871FT ..................................................................................................................................... 21
Sensor Identification .......................................................................................................... 21
Electrical Safety Design Code ............................................................................................. 21
Electromagnetic Compatibility (EMC) .............................................................................. 22
Temperature and Pressure Limits ....................................................................................... 23
Process Wetted Parts .......................................................................................................... 24
Pressure Equipment Directive (PED) Compliance ............................................................. 25871EC .................................................................................................................................... 26
Sensor Identification .......................................................................................................... 26
Electrical Safety Design Code ............................................................................................. 26
Electromagnetic Compatibility (EMC) .............................................................................. 27
Pressure and Temperature Limits ....................................................................................... 27
Process Wetted Parts .......................................................................................................... 28
871CC .................................................................................................................................... 30
Sensor Identification .......................................................................................................... 30
Electrical Safety Design Code ............................................................................................. 30
Electromagnetic Compatibility (EMC) .............................................................................. 31
Pressure and Temperature Limits ....................................................................................... 31
Process Wetted Parts .......................................................................................................... 32
871CR .................................................................................................................................... 34
Sensor Identification .......................................................................................................... 34
Electrical Safety Design Code ............................................................................................. 34
Electromagnetic Compatibility (EMC) .............................................................................. 35
Pressure and Temperature Limits ....................................................................................... 35
Process Wetted Parts .......................................................................................................... 37
FT10 Electrodeless Conductivity Sensor,
ATEX Entity Approval as Type ia and Type n ........................................................................ 39
Sensor Identification .......................................................................................................... 40
Associated Apparatus in Nonhazardous Area,
Sensor in Hazardous Area ................................................................................................... 41
Associated Apparatus and Sensor in Hazardous Area .......................................................... 42
Entity and Field Wiring Parameters ................................................................................... 43
Pin Terminated Integral Cable and Patch Cable Connections ............................................ 43
Patch Cable Connector ...................................................................................................... 44
Special Conditions of use ................................................................................................... 45
4. 870IT Series Transmitters............................................................................................... 47
Transmitter Identification ....................................................................................................... 47
Electrical Certification Rating ................................................................................................. 48
Origin Code ............................................................................................................................ 51
Special Warnings ..................................................................................................................... 51
5. 876 Series Transmitters................................................................................................... 53iv

Contents

MI 611-208 – June 2011

Transmitter Identification ....................................................................................................... 53
Electrical Certification Rating ................................................................................................. 54
Origin Code ............................................................................................................................ 56
Special Warnings ..................................................................................................................... 56v

MI 611-208 – June 2011vi

Contents

1. General Warnings
Local Code Warning! WARNING
These products must be installed to meet all applicable local installation regulations,such as hazardous location requirements, electrical wiring codes, and mechanicalpiping codes. Persons involved in the installation must be trained in these code
requirements to ensure that the installation takes maximum advantage of the safety
features designed into the device.

Parts Replacement Warning! WARNING
This product contains components that have critical safety characteristics. Do notsubstitute components. Replace components only with factory-supplied components.
Component substitution may impair the electrical safety of this equipment and its
suitability for use in hazardous locations.

1

MI 611-208 – June 20112

1. General Warnings

2. 875 Series Analyzers
Analyzer Identification
On panel-mounted analyzers, a data label and agency label are fastened to the top surface of theenclosure. On surface- or pipe-mounted devices, the data label is located on the right side and theagency label (if applicable) on the left side of the analyzer. A third label containing user
information is also on the analyzer. A typical data label is shown in Figure 1. A typical agency
label is shown in Figure 2.
Refer to the data label to determine the model, origin code, supply voltage, maximum power,
maximum VA, and alarm contact ratings.

875PH-A2N-A

MODEL

2B0125DATE AND PLANT OF MANUFACTURE
SUPPLY VOLTAGE
MAXIMUM POWER

120 VAC

POWER CONSUMPTION
5 A @ 160 V AC
ALARM CONTACT RATINGS

Figure 1. Sample 875 Analyzer Data Label

Figure 2. Sample 875 Analyzer Agency Label3

MI 611-208 – June 2011

2. 875 Series Analyzers

Hazardous Location CodeThe electrical safety design code is printed on the data label as part of the model number. See
Figure 1. The location of the code within the model number is shown below:
875PH-A2N-A
ELECTRICAL SAFETY DESIGN CODE

See Table 1 to identify this code. The type of protection is also located on the agency label. See
Figure 2.
Table 1. Product Safety Specifications
Testing Laboratory,
Types of Protection, and Area Classification
ATEX protection ‘n’ for Zone 2;
II 3 G EEx nC[L] IIC. (a)Application Conditions

Electrical
SafetyDesign CodeTemperature Class T4 at maximum
ambient temperature of 60 °C (140 °F.
See certificate KEMA 02ATEX1329 X

N(a)The L means that the unit contains energy limited circuits to the sensor.

NOTE

These analyzers have been designed to meet the electrical safety descriptions listed
in the table above. For detailed information, or status of testing laboratory
approvals/certifications, contact Invensys.

Entity Parameters for 875PH-..N
The entity parameters for the sensor circuit (Terminals 1, 2, 2A, 3, 3A, 4, 5, 5A, 6, 7, and 8) intype of explosion protection energy limited EEx nC[L], with the following maximum values are:
Uo = 10 V
Io = 125 mA
Po = 0.3 W
Co = 20 F
Lo = 5 mH

Entity Parameters for 875EC-..NThe entity parameters for the sensor circuit (Terminals 1, 2, 3, 4, 5, 6, 7, and 8) in type of
explosion protection energy limited EEx nC[L], with the following maximum values are:
Uo = 5 V
Io = 45 mA
Po = 100 mW
Co = 1000 F
Lo = 40 mH4

2. 875 Series Analyzers

MI 611-208 – June 2011

Entity Parameters for 875CR-..N
The entity parameters for the sensor circuit (Terminals 1, 2, 2A, 3, 4, and 5) in type of explosion
protection energy limited EEx nC[L], with the following maximum values are:
Uo = 5 V
Io = 85 mA
Po = 150 mW
Co = 1000 F
Lo = 10 mH

Panel-Mounted Enclosure Warning! WARNING
ATEX panel-mounted units must be installed in an enclosed panel or rack whose
degree of ingress protection must be at least IP54 in accordance with EN 60529 andcomply with clause 6 of EN 50021.

Electrical Connection Warning! WARNING
For ATEX certified analyzers, electrical connections must be made in such a way thatthe degree of ingress protection of the enclosure remains at least IP54 per EN 60529
and is suitable for the environment.

Grounding Warning! WARNING
The grounding stud or conductive mounting means of the enclosure must beconnected to the potential equalizing system within the explosive atmosphere.

Origin CodeThe origin code identifies the area of manufacture and the year and week of manufacture. See
Figure 1. In the example, 2B means the product was manufactured in the Analytical Division,
01 identifies the year of manufacture as 2001, and 25, the week of manufacture in that year.

Supply Voltage Operative Limits
The supply voltage operative limits are the voltage shown on the data label +15% and -20%. See
Figure 1.

5

MI 611-208 – June 2011

2. 875 Series Analyzers

Alarm Contact Limits
The alarm contact limits are shown on the data label. See Figure 1. The standard limits are 5 A at
250 V ac and 2 A at 30 V dc. The ATEX limits are 5 A at 160 V ac and 2 A at 30 V dc.

Ambient Temperature Limits
The ambient temperature operative limits of the analyzer are -20 and +75 °C (-4 and +165 °F).
For analyzers with ATEX certification, the limits are -20 and +60 °C (-4 and +140 °F).

Installation Instructions
Refer to MI 611-222 (875CR), MI 611-224 (875EC), or MI 611-225 (875PH)

CE Compliance
For the 875 panel mounted analyzer to meet CE requirements, a grounded metal enclosure isrequired. To assure a good ground, the edges of the panel opening that receives the analyzer mustnot be painted.

63. Sensors
Dangers, Warnings, and Cautions! DANGER
When installing or removing sensors, wear appropriate protective clothing including
safety goggles. Escaping chemicals can cause severe injury including blindness.
! WARNING
1. Use care when connecting and disconnecting high-pressure service connections.
Use proper gloves and follow the recommended procedures to avoid injury to
personnel or damage to equipment.
2. When processing hazardous liquids, follow the recommended procedures. Failure
to do so could result in injury to personnel and damage to equipment.
! WARNING
In addition to the pressure and temperature limits of the sensor, the sensor mounting
accessories also have pressure and temperature limits. The specifications for themounting accessories may be greater or less than the sensor specifications. Always use
the lesser of the specification limits when designing the installation of a sensor withaccessories.
! CAUTION
To prevent damage, use care when handling sensitive sensor components such as glass
electrodes.

Origin CodeThe origin code identifies the area of manufacture and the year and week of manufacture. See theagency label in the “Sensor Identification” section for your sensor. In the example 2B0412, 2Bmeans the product was manufactured in the Analytical Division, 04 identifies the year of manufacture as 2004, and 12, the week of manufacture in that year.

7

MI 611-208 – June 2011

3. Sensors

871PH
Sensor Identification
Typical agency, body, and data labels are shown in Figures 3 and 4.
BODY LABEL (BL)AGENCY LABEL (AL)
CS-E/ANN
2B04120001

871PH-1A1A
2B0412871PH-1A1A
2B0125DATA LABEL (DL)
MODEL
STYLE
871PH-1A1A-3
A
®

AL

DL

DL

BL

2B0412

AL

Figure 3. Sample 871PH (Cable Terminated) Sensor Identification

871PH-1A1A-Q

2B04120002

Figure 4. Sample 871PH (Quick Connector Terminated) Sensor Identification

Electrical Safety Design CodeThe electrical safety design code is printed on the agency label. See Figures 3 and 4. See Table 2
for additional information.

83. Sensors

MI 611-208 – June 2011

Table 2. Electrical Safety Specification

Testing Laboratory,
Type of Protection, and Area
Classification

Electrical
Safety Design
CodeApplication Conditions

ATEX intrinsically safe for
Temperature Class T4 - T6
II 1 GD EEx ia IIC, Zone 0
T110 °C...T235 °C
ATEX Type n energy limited for Temperature Class T4 - T6
II 3 GD EEx nL IIC, Zone 2
T110 °C...T235 °C

CS-E/AAA
CS-E/ANN

NOTE

These sensors have been designed to meet the electrical safety descriptions listed in
the table above. For detailed information, or status of testing laboratory
approvals/certifications, contact Invensys.
Entity Parameters for CS-E/AAA and CS-E/ANN are as follows:
Ui = 10 V
Ii = 125 mA
Pi = See Table 3
Ci = 0.15 F for 871PH-1, -2, -3, and -4 (with preamplifier)Ci = 0 F for 871PH-5 and -6 (without preamplifier)
Li = 0 mH
Table 3. Maximum Input Power (Pi)Model

Temperature Class Max Process Temp

Pi

871PH-1
871PH-2
871PH-3871PH-4(with preamplifier)

T4
T5
T6

80 °C
80 °C
60 °C

0.6 W
0.5 W
0.35 W

871PH-5
871PH-6(without preamplifier)

T4
T5
T6

121 °C
80 °C
60 °C

1.0 W
0.5 W
0.35 W9

MI 611-208 – June 2011

3. Sensors

Table 4. Relationship Between Input Power (Pi), Max Process Temp, and Surface Temp ‘T’

Pi

0.6 W

Maximum
Process
Temperature

SurfaceTemperature
‘T’

50 °C
60 °C
80 °C
85 °C
125 °C
135 °C
175 °C
200 °C

T110 °C
T120 °C
T140 °C
T145 °C
T185 °C
T195 °C
T235 °C
T260 °C

Electromagnetic Compatibility (EMC)
The 871PH Sensor complies with the requirements of the European EMC Directive 89/336/EEC
when its cable is connected through rigid metal conduit as recommended for 873PH*, 873APH*,
873DPX*, and 875PH Analyzers, and 870ITPH Transmitters.
(*220 V ac, 240 V ac metal enclosures only)

Pressure and Temperature Limits
The pressure and operating temperature limits vary depending on the sensor body material, themeasuring electrode type, and whether a ball valve, submersible, or in-line installation is used.
The sensor body material and measuring electrode is identified in the model number on the datalabel. See Figure 5.
SENSOR BODY MATERIAL
MEASURING ELECTRODE AND ELECTRODE BODY MATERIALSENSOR WETTED METALLIC PARTS MATERIALREFERENCE JUNCTION AND BODY MATERIAL

871PH-1 A 1 A
Figure 5. 871PH Model Coded Example
Sensor Body Material-1, -3, or -5 = Ryton-2, -4, or -6 = CPVC

10

3. Sensors

MI 611-208 – June 2011

Measuring Electrode and Electrode Body Material

Table 5. Measuring Electrode and Electrode Body Material
Code
A
B
D
E
F
G
P
Q
R
S
T
U
X

Electrode Material

Body Material

pH, Spherical Glass
Ryton
pH, Antimony
Ryton
ORP, Platinum
Ryton
ORP, Gold
Ryton
pH, Flat Glass
Ryton
pH, Domed High Temperature Glass Ryton
pH, Spherical Glass
ptfe
pH, Antimony
ctfe
ORP, Platinum
ctfe
ORP, Gold
ctfe
pH, Flat Glass
ptfe
pH, Domed High Temperature Glass ptfe
None

Refer to Tables 6 and 7 for pressure and temperature limits.
NOTE

In the tables, in-line installation means that only the sensing end, not the sensor
body, is immersed in the solution. Submersion installation is when the entire sensor
assembly (sensing end and body) is completely submersed.

Table 6. Maximum Pressure and Operating Temperature Limits for Sensor with Ryton Body

Ball Valve or Submersible
Installation
MeasuringElectrode Type
Flat Glass pH
Spherical Glass pH
Domed Glass pH
Antimony pH
ORP

Maximum
Pressure
1 MPa(150 psi)
0.7 MPa(100 psi)
0.7 MPa(100 psi)
1 MPa(150 psi)
1 MPa(150 psi)

Temperature
Range-5 to +80 °C(20 to 175 °F)-5 to +80 °C(20 to 175 °F)
0 to +80 °C(32 to 175 °F)-5 to +80 °C(20 to 175 °F)-5 to +80 °C(20 to 175 °F)

In-Line Installation
Maximum
Pressure
1 MPa(150 psi)
0.7 MPa(100 psi)
0.7 MPa(100 psi)
1 MPa(150 psi)
1 MPa(150 psi)

Temperature
Range-5 to +85 °C(20 to 185 °F)-5 to +100 °C(20 to 212 °F)
0 to +121 °C(32 to 250 °F)-5 to +125 °C(20 to 255 °F)-5 to +125 °C(20 to 255 °F)

11

MI 611-208 – June 2011

3. Sensors! WARNING
Maximum allowable temperature and pressure may be limited by installation
hardware used. Refer also to the temperature and pressure specifications on all
appropriate bushings, tees, flow chambers, and ball valve assemblies.
Table 7. Maximum Pressure at Various Operating Temperatures for Sensor with CPVC Body

Ball Valve or Submersible Installation
Measuring
Maximum Pressure at Operating
Electrode Type
Temperature
Flat Glass pH
0.6 MPa
0.3 MPa
Spherical Glass pH* 0.9 MPa(125 psi) at (90 psi) at (50 psi) at
Domed Glass pH*
-5 °C
50 °C
80 °C
Antimony pH(20 °F)(120 °F)(175 °F)
ORP

In-Line Installation
Maximum Pressure at Operating
Temperature
0.9 MPa(125 psi) at-5 °C(20 °F)

0.3 MPa
0.1 MPa(50 psi) at (15 psi) at
80 °C
100 °C(175 °F)(212 °F)* Maximum pressure at -5 °C (20 °F) for Spherical Glass pH and at 0 °C (32 °F) for Domed Glass pH Electrode is
0.7 MPa (100 psi).

! WARNING
Maximum allowable temperature and pressure may be limited by installation
hardware used. Refer also to the temperature and pressure specifications on all
appropriate bushings, tees, flow chambers, and ball valve assemblies.

Process Wetted Materials
The process wetted materials of your sensor are identified in the model code on the data label. See
Figure 5 and the following text.
Sensor Body Material-1, 3, or 5 = Ryton-2, 4, or 6 = CPVC
Sensor Wetted Metallic Parts Material

1 = Titanium
2 = Carpenter 20 Cb-3
3 = 316L Stainless Steel
5 = Monel®
6 = Tantalum12

3. Sensors

MI 611-208 – June 2011

Reference Junction and Body Material

Table 8. Reference Junction and Body Material
Code
A
B
D

Reference Junction Material Body Material
Ceramic
Ceramic
Ceramic

Ryton
ptfe
pvdf

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MI 611-208 – June 2011

3. Sensors

871A
Sensor Identification
Typical agency and data labels are shown in Figure 6.
AGENCY LABEL (AL)

DATA LABEL (DL)871A-1F-1
CS-E/ANN
2B04120003

MODEL
871A-1F-1

STYLE
A
®

2B0412

AL

DL

DL

AL

Figure 6. Sample 871A Sensor Identification

Electrical Safety Design CodeThe electrical safety design code is printed on the agency label. See Figure 6. See Table 9 for additional information.
Table 9. Electrical Safety Specification
Testing Laboratory,
Type of Protection, andArea Classification

Application Conditions

ATEX intrinsically safe for
Temperature Class T4 - T6
II 1 GD EEx ia IIC, Zone 0
T110 °C...T235 °C
ATEX Type n energy limited for Temperature Class T4 - T6
II 3 GD EEx nL IIC, Zone 2
T110 °C...T235 °C

Electrical Safety
Design Code
CS-E/AAA
CS-E/ANN

NOTE

These sensors have been designed to meet the electrical safety descriptions listed in
the table above. For detailed information, or status of testing laboratory
approvals/certifications, contact Invensys.
Entity Parameters for CS-E/AAA and CS-E/ANN are as follows
Ui = 10 V
Ii = 125 mA
Pi = See Table 10
Ci = 0.15 F for 871A-2, and -4 (with preamplifier)Ci = 0 F for 871A-1 and -3 (without preamplifier)
Li = 0 mH

14

3. Sensors

MI 611-208 – June 2011

Table 10. Maximum Input Power (Pi)Model

Temperature Class Max Process Temp
T4
T5
T6
T4
T5
T6

871A-2
871A-4(with preamplifier)871A-1
871A-3(without preamplifier)

80 °C
80 °C
60 °C
121 °C
80 °C
60 °C

Pi
0.6 W
0.5 W
0.35 W
1.0 W
0.5 W
0.35 WFor the relationship between the input power Pi, the process temperature, and the surface
temperature ‘T’, refer to Table 4.

Electromagnetic Compatibility (EMC)
The 871A Sensor complies with the requirements of the European EMC Directive 89/336/EEC
when its cable is connected through rigid metal conduit as recommended for 873PH*, 873APH*,
873DPX*, and 875PH Analyzers, and 870ITPH Transmitters.
(*220 V ac, 240 V ac metal enclosures only)

Pressure and Temperature Limits

840
770
700
630
560
490
420
350
280
210
140
70
0

Normal Operating
Condition Limits
A

A

A

A

A
0

B

B
A

Process Pressure, psig

Process Pressure, kPa Gauge

Pressure and temperature limits are shown in Figure 7.

120
110
100
90
80
70
60
50
40
30
20
70
0

Normal Operating
Condition Limits
A

A

A

A
B

A

A

B

5 55 60 65 70 75 80 85 90 95 100
30 40
120
140
160
180
Process Temperature, °F
Process Temperature, °C
A = In-line or in-situ mounting
B = In-line mounting only

200

Figure 7. Pressure and Temperature Limits

Process Wetted Parts
Process wetted parts are as follows:
Body: PVDF (polyvinylidene fluoride)
Reference Electrode: Ceramic Junction15

MI 611-208 – June 2011

3. Sensors

O-ring: EPR (ethylene propylene rubber)
Measuring Electrode: Per the model number on the data label. See Figure 8
MEASURING ELECTRODE MATERIAL

871A- 1 F
Figure 8. 871A Model Code Example
where:
D = ORP, Platinum
E = ORP, GoldF = pH, Flat Glass

16

3. Sensors

MI 611-208 – June 2011

PH10 and ORP10
Sensor Identification
Typical agency and data labels are shown in Figures 9 and 10.
AGENCY LABEL (AL)

DATA LABEL (DL)PH10-2N1A
CS-E/ANN
2B04120004

MODEL
PH10-2N1A

STYLE
A
®

2B0412

AL

DL

DL

AL

Figure 9. Sample PH10 or ORP10 (Cable Termination) Sensor Identification

PH10-2N1Q

2B04120005

Figure 10. Sample PH10 or ORP10 (Quick Connector Termination) Sensor Identification

Electrical Safety Design CodeThe electrical safety design code is printed on the agency plate. See Figure 9. See Table 11 foradditional information.
Table 11. Electrical Safety Specification
Testing Laboratory,
Type of Protection, andArea Classification

Application Conditions

ATEX intrinsically safe for
Temperature Class T4 - T6
II 1 GD EEx ia IIC, Zone 0
T110 °C...T235 °C
ATEX Type n energy limited for Temperature Class T4 - T6
II 3 GD EEx nL IIC, Zone 2
T110 °C...T235 °C

Electrical Safety
Design Code
CS-E/AAA
CS-E/ANN17

MI 611-208 – June 2011

3. Sensors

NOTE

These sensors have been designed to meet the electrical safety descriptions listed in
the table above. For detailed information, or status of testing laboratory
approvals/certifications, contact Invensys.
Entity Parameters for CS-E/AAA and CS-E/ANN are as follows
Ui = 10 V
Ii = 125 mA
Pi = See Table 12
Ci = 0.15 F for PH10-.P and ORP10-.P (with preamplifier)Ci = 0 F for PH10-.N and ORP10-.N (without preamplifier)
Li = 0 mH
Table 12. Maximum Input Power (Pi)Model

Temperature Class Max Process Temp

PH10-.P
ORP10-.P(with preamplifier)PH10-.N
ORP10-.N(w/o preamplifier)

T4
T5
T6
T4
T5
T6

80 °C
80 °C
60 °C
121 °C
80 °C
60 °C

Pi
0.6 W
0.5 W
0.35 W
1.0 W
0.5 W
0.35 WFor the relationship between the input power Pi, the process temperature, and the surface
temperature ‘T’, refer to Table 4.

Electromagnetic Compatibility (EMC)
The PH10 and ORP10 Sensors comply with the requirements of the European EMC Directive
89/336/EEC when its cable is connected through rigid metal conduit as recommended for873PH*, 873APH*, 873DPX*, and 875PH Analyzers, and 870ITPH Transmitters.
(*220 V ac, 240 V ac metal enclosures only)

Process Pressure Limits
0 and 0.7 MPa (0 and 100 psi)

Process Temperature Limits
The temperature limits vary depending on the electrode type, whether a preamplifier is integral to
the sensor, and whether submersible or in-line installation is used. The electrode type and whether
a preamplifier is integral to the sensor is identified in the model number on the data label. See
Figure 11.

18

3. Sensors

MI 611-208 – June 2011

ELECTRODE TYPE
PREAMPLIFIEROPTIONAL SELECTIONS

PH10- or ORP10- 1 N 1 A - E
Figure 11. PH10 or ORP10 Model Code Example
Electrode TypeFor pH Sensors-1 = Domed, High Temperature, Glass Bulb with Protective Guard-2 = Domed, High Temperature, Glass Bulb w/o Protective Guard-3 = Flat Ruggedized Glass-4 = Antimony
For ORP Sensors-1 = Platinum-2 = Gold
Preamplifier

N = No Preamplifier
P = Internal Preamplifier
NOTE

In Table 13, in-line installation means that only the sensing end, not the sensor
body, is immersed in the solution. Submersion installation is when the entire sensor
assembly (sensing end and body) is completely submersed.

Table 13. Process Temperature Limits
With Internal Preamplifier
MeasuringElectrode Type

Without Internal
Preamplifier

Ball Valve orSubmersion Installation

In-LineInstallation (a)Domed Glass - pH 0 to 121 °C
0 to 85 °C (32 to 185 °F) 0 to 121 °C(32 to 250 °F)(32 to 250 °F)
Flat Glass - pH
0 to 85 °C (32 to 185 °F) 0 to 85 °C (32 to 185 °F) 0 to 85 °C (32 to 185 °F)
Antimony - pH
0 to 121 °C
0 to 85 °C (32 to 185 °F) 0 to 121 °C(32 to 250 °F)(32 to 250 °F)
Platinum - ORP
0 to 121 °C
0 to 85 °C (32 to 185 °F) 0 to 121 °C(32 to 250 °F)(32 to 250 °F)
Gold - ORP
0 to 121 °C
0 to 85 °C (32 to 185 °F) 0 to 121 °C(32 to 250 °F)(32 to 250 °F)(a)For in-line installations of a DolpHin sensor with internal preamp, the upper body must be in ambient
temperatures of 54 °C (130 °F) or less.

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MI 611-208 – June 2011

Process Wetted Parts
Process wetted parts are as follows:
Sensor Body: Kynar
Reference Electrode: Ceramic Junction
Solution Ground: Conductive Kynar
Measuring Electrode
pH: Domed Glass, Flat Glass, or Antimony as specified.
See Figure 11 and the following text.
ORP: Platinum or Gold as specified.
See Figure 11 and the following text.
O-Ring: Viton standard; EPDM and Chemraz optional, as specified.
See Figure 11 and the following text.
Electrode TypeFor pH Sensors-1 = Domed, High Temperature, Glass Bulb with Protective Guard-2 = Domed, High Temperature, Glass Bulb w/o Protective Guard-3 = Flat Ruggedized Glass-4 = Antimony
For ORP Sensors-1 = Platinum-2 = Gold
Optional Selections-E = EPDM O-ring-C = Chemraz O-ring20

3. Sensors

3. Sensors

MI 611-208 – June 2011

871FT
Sensor Identification
A typical data plate is shown in Figure 12.
MODEL CODE:
MODEL 871FT-2E1A1C-3
ST. A
MWP
225 PSIG/-10C TO 121C 14F/250F
MRT
121C 250F CF 2.67 CM-1
REF NO. 249479F30
2B0412MODEL
MAX WORKING PRESSURE
MAX RATED TEMP AND CELL FACTORSERIAL NUMBER
PLANT AND DATE OF MFG

Figure 12. Sample 871FT Data Plate
A typical agency label is shown in Figure 13. The label is attached to the sensor cable.

871FT-3G3B3T
CS-E/ANN
390059020002

Figure 13. Sample 871FT Agency Label

Electrical Safety Design CodeThe electrical safety design code is printed on the agency plate. See Figure 12. See Table 14 foradditional information.

21

MI 611-208 – June 2011

3. Sensors

Table 14. Electrical Safety Specification
Testing Laboratory,
Type of Protection, andArea Classification

Application Conditions

ATEX intrinsically safe for
Temperature Class T4 - T6
II 1 GD EEx ia IIC, Zone 0
T110 °C...T235 °C
ATEX Type n energy limited for Temperature Class T4 - T6
II 3 GD EEx nL IIC, Zone 2
T110 °C...T235 °C

Electrical
Safety Design
Code
CS-E/AAA
CS-E/ANN

NOTE

These sensors have been designed to meet the electrical safety descriptions listed in
the table above. For detailed information, or status of testing laboratory
approvals/certifications, contact Invensys.
Entity Parameters for CS-E/AAA are as follows:
Ui = 7.5 V
Ii = 55 mA
Pi = 0.4 W
Effective Ci = negligibly small
Effective Li = 11.5 mH
Entity Parameters for CS-E/ANN are as follows:
Ui = 7.5 V
Ii = 55 mA
Pi = 0.4 W
Ci = 0 nF
Li = 11.5 mH
Table 15. Relationship Between Process Temperature and Temperature Class
Temperature Class Max Process Temp
T4
T5
T6

125 °C
100 °C
85 °C

For the relationship between the input power Pi, the process temperature, and the surface
temperature ‘T’, refer to Table 4.

Electromagnetic Compatibility (EMC)
The 871FT Sensor complies with the requirements of the European EMC Directive 89/336/EEC
when its cable is connected through rigid metal conduit as recommended for 873EC*, 873AEC*,
and 875EC Analyzers, and 870ITEC Transmitters.
(*220 V ac, 240 V ac metal enclosures only)22

3. Sensors

MI 611-208 – June 2011

Temperature and Pressure Limits
The temperature and pressure limits vary depending on the sensor type, the nominal line size, theinsulator material, and the end connection form. The sensor type, insulator material, nominalline size, and end connection form are identified in the model number on the data label. See
Figure 14.

SENSOR TYPENOMINAL LINE SIZEEND CONNECTION MATERIALINSULATOR MATERIALEND CONNECTION FORM
OPTIONAL SELECTIONS

871FT- 2 E 1 A 1 C - v
Figure 14. 871FT Model Code Example
Sensor Type

-1 = Sanitary, High Range Conductivity-2 = Sanitary, Low Range Conductivity-3 = Industrial, High Range Conductivity-4 = Industrial, Low Range Conductivity
Nominal Line Size

C = 1/2 in
D = 3/4 in
E = 1 in
F = 1 1/2 in
G = 2 in
H = 3 in
J = 4 inInsulator Material

A = VPEEK
B = PVDF
C = PCTFE
D = Glass Filled PEEKEnd Connection Form

1 = Tri-Clamp Fitting
2 = Pipe Adapter
3 = ANSI Class 150 Flange
4 = ANSI Class 300 Flange23

MI 611-208 – June 2011

3. Sensors

Table 16. Temperature and Pressure Limits
Item

Description

Temperature and Pressure Limits
Sanitary Sensors with Tri-Clamp Fittings:
Virgin PEEK:
225 psi, -10 to +121 °C (14 to 250 °F)
1/2, 3/4, 1, 1 1/2, and 2 in not derated
3 inlinearly derated from 225 psi at 85 °C (185 °F) to 160 psi at
121 °C (250 °F)
4 inlinearly derated from 225 psi at 43 °C (110 °F) to 150 psi at
121 °C (250 °F)
PCTFE:
60 psi, -10 to +60 °C (14 to 140 °F) linearly derated to
10 psi at 121 °C (250 °F)
NOTE: Tri-Clamp wing nut tightened to 25 inlb torque.
Industrial Sensors with ANSI Class 150 Flanges or NPT Mounting:
Glass Filled PEEK:
275 psi, -10 to +60 °C (14 to 140 °F) linearly derated to 190 psi at
210 °C (411 °F)
PVDF:
100 psi, -10 to +60 °C (14 to 140 °F) linearly derated to60 psi at 121 °C (250 °F)
PCTFE:
100 psi, -10 to +60 °C (14 to 140 °F) linearly derated to
10 psi at 121 °C (250 °F)
Industrial Sensors with ANSI Class 300 Flanges:
Glass Filled PEEK:
400 psi, -10 to +210 °C (14 to 411 °F)

Process Wetted Parts
The Sanitary sensor type has only the insulator (bore piece) as a wetted part. The Industrial sensor
type has end connection, insulator (bore piece) and O-ring as wetted parts. The sensor type, end
connection material, and insulator are identified in the model number on the data label. See
Figure 14 and the following text. EPDM O-rings are used unless Viton or Chemraz is specified as
an optional O-ring material in the last model code designator.
Sensor Type

-1 = Sanitary, High Range Conductivity-2 = Sanitary, Low Range Conductivity-3 = Industrial, High Range Conductivity-4 = Industrial, Low Range Conductivity
End Connection Material-1 = None-2 = Hastelloy C-276-3 = 316 ss-4 = Carpenter 20-CB324

3. Sensors

MI 611-208 – June 2011

Insulator Material

A = VPEEK
B = PVDF
C = PCTFE
D = Glass Filled PEEK
Optional Selections-P = Chemraz O-rings-V = Viton O-rings

Pressure Equipment Directive (PED) ComplianceWith the exception of the model codes listed in Table 17, the 871FT Sensors are in compliancewith the Pressure Equipment Directive 97/23/EC as Sound Engineering Practice (SEP).
Table 17. Exceptions to PED Compliance
Model Code

871FT-1J1A1
871FT-2J1A1
871FT-3H.D4
871FT-4HD4871FT-3J.D3
871FT-4JD3871FT-3J.D4
871FT-4JD4Description

4 inch Sanitary Type with Virgin PEEK Insulator Material and
Tri-Clamp Flange End Connections.
3-inch Industrial Type with Glass Filled PEEK Insulator Materialand ANSI Class 300 End Connections
4-inch Industrial Type with Glass Filled PEEK Insulator Materialand ANSI Class 150 End Connections
4-inch Industrial Type with Glass Filled PEEK Insulator Materialand ANSI Class 300 End Connections25

MI 611-208 – June 2011

3. Sensors

871EC
Sensor Identification
Typical agency and data labels shown in Figure 15.
AGENCY LABEL (AL)

DATA LABEL (DL)871CC-SP0
871EC-SP0
A
871EC-SP0
CS-E/ANN
2B04120007
2B04120006
2B04120006

MODEL
871EC-SP0

STYLE
A
®

2B0412

AL

DL

DL

AL

Figure 15. Sample 871EC Sensor Identification

Electrical Safety Design CodeThe electrical safety design code is printed on the agency plate. See Figure 15. See Table 18 foradditional information.
Table 18. Electrical Safety Specification
Testing Laboratory,
Type of Protection, andArea Classification

Application Conditions

ATEX intrinsically safe for
Temperature Class T3 - T6
II 1 GD EEx ia IIC, Zone 0
T110 °C...T260 °C
ATEX Type n energy limited for Temperature Class T3 - T6
II 3 GD EEx nL IIC, Zone 2
T110 °C...T260 °C

Electrical
Safety Design
Code
CS-E/AAA
CS-E/ANN

NOTE

These sensors have been designed to meet the electrical safety descriptions listed in
the table above. For detailed information, or status of testing laboratory
approvals/certifications, contact Invensys.
Entity Parameters for CS-E/AAA are as follows
Ui = 7.5 V
Ii = 70 mA
Pi = 0.4 W
Effective Ci = negligibly small
Effective Li = 7.8 mH

26

3. Sensors

MI 611-208 – June 2011

Entity Parameters for CS-E/ANN are as follows
Ui = 7.5 V
Ii = 65 mA
Pi = 0.4 W
Ci = 0 nF
Li = 7.8 mH
Table 19. Relationship Between Process Temperature and Temperature Class
Temperature Class Max Process Temp
T3
T4
T5
T6

200 °C
135 °C
100 °C
85 °C

For the relationship between the input power Pi and the process temperature, refer to Table 4.

Electromagnetic Compatibility (EMC)
The 871EC Sensor complies with the requirements of the European EMC Directive 89/336/EEC
when its cable is connected through rigid metal conduit as recommended for 873EC*, 873AEC*,
and 875EC Analyzers, and 870ITEC Transmitters.
(*220 V ac, 240 V ac metal enclosures only)

Pressure and Temperature Limits
The pressure and temperature limits vary depending on the sensor type, the nominal line size, theinsulator material, and the end connection form. The sensor type, insulator material, nominalline size, and end connection form are identified in the model number on the data label. See thefollowing example:
Pressure and temperature limits vary per the sensor body code as shown in the model number. See
Figure 16.
SENSOR BODY MATERIAL AND TEMP ELEMENTSENSOR WETTED METALLIC AND MOUNTING PARTS MATERIALOPTIONAL SELECTIONS

871EC- SP 0 -V
Figure 16. 871EC Model Code Example
Sensor Body Material and Temperature Element-SP = Glass-filled PEEK, 100 k Thermistor-HP = Glass-filled PEEK, 100  RTD-PP = Virgin Polypropylene, 100  RTD-PT = Virgin Polypropylene, 100 k Thermistor27

MI 611-208 – June 2011

3. Sensors-NL = Glass-filled Noryl, 100 k Thermistor-TF = Fluorocarbon head, 100 k Thermistor-PN = Glass-filled Noryl, 100 k Thermistor-PX = Glass-filled Noryl, 100 k Thermistor-RE = Glass-filled PEEK, 100 k Thermistor-LB = Glass-filled PEEK, 100 k Thermistor-BW = Glass-filled PEEK, 100  RTD-UT = Glass-filled PEEK, 100  RTD-EV = Epoxy head, 316 ss extension, 100 k Thermistor-AB = Linatex, 316 ss extension, 100 k Thermistor
Table 20. Pressure and Temperature Limits
Sensor Body Code
-SP
-HP
-PP
-PT
-NL
-TF
-PN
-PX
-RE
-LB
-BW
-UT
-EV
-AB

Pressure Limits

Temperature Limits-0.1 and +1.75 MPa (-15 and +250 psi) -5 and +120 °C (20 and 250 °F)-0.1 and +1.75 MPa (-15 and +250 psi) -5 and +200 °C (20 and 390 °F)-0.1 and +1.4 MPa (-15 and +200 psi)(a) -5 and +120 °C (20 and 250 °F)-0.1 and +1.4 MPa (-15 and +200 psi)(a) -5 and +120 °C (20 and 250 °F)-0.1 and +1.4 MPa (-15 and +200 psi) -5 and +65 °C (20 and 150 °F)-0.1 and +1.4 MPa (-15 and +200 psi) -5 and +105 °C (20 and 225 °F)-0.1 and +1.4 MPa (-15 and +200 psi) -5 and +105 °C (20 and 225 °F)-0.1 and +1.4 MPa (-15 and +200 psi) -5 and +105 °C (20 and 225 °F)-0.1 and +2.41 MPa (-15 and +350 psi) -5 and +120 °C (20 and 250 °F)-0.1 and +2.41 MPa (-15 and +350 psi) -5 and +120 °C (20 and 250 °F)-0.1 and +2.41 MPa (-15 and +350 psi) -5 and +200 °C (20 and 390 °F)-0.1 and +2.41 MPa (-15 and +350 psi) -5 and +200 °C (20 and 390 °F)-0.1 and +0.7 MPa (-15 and +100 psi) -5 and +105 °C (20 and 225 °F)-0.1 and +0.7 MPa (-15 and +100 psi) -5 and +65 °C (20 and 150 °F)(a) 1.4 MPa at 80 °C (200 psi at 176 °F) is linearly derated to 1.05 MPa at 120 °C (150 psi at 250 °F)

Process Wetted Parts
Process wetted parts vary per the sensor body material, sensor metallic parts (in some sensors) andO-ring material. The sensor body material and sensor wetted metallic parts are identified in themodel number on the data label. See Figure 16 and following text. EPDM O-rings are used unless
Viton, Kalrez, or Chemraz is specified as an optional O-ring material in the last model code designator.
Sensor Body Material-SP = Glass-filled PEEK
-HP = Glass-filled PEEK
-PP = Virgin Polypropylene-PT = Virgin Polypropylene-NL = Glass-filled Noryl28

3. Sensors

MI 611-208 – June 2011

-TF = Fluorocarbon head, 316 ss or Carpenter 20 Cb housing-PN = Glass-filled Noryl-PX = Glass-filled Noryl-RE = Glass-filled PEEK-LB = Glass-filled PEEK
-BW = Glass-filled PEEK-UT = Glass-filled PEEK
-EV = Epoxy head, 316 ss extension-AB = Linatex, 316 ss extension
Sensor Wetted Metallic and Mounting Parts Material-0 = None-2 = Carpenter 20 Cb-3 = 316 ss Universal Mount-7 = 316 ss Sanitary Mounting
Optional Selections-C = Chemraz O-rings-K = Kalrez O-rings-V = Viton O-rings29

MI 611-208 – June 2011

3. Sensors

871CC
Sensor Identification
A cell label similar to that shown in Figure 17 is attached to sensors 871CC-A, -E, -F, and -K.
Agency and data labels are attached to all 871CC cables as shown in Figure 17.

MODEL
871CC-A6

STYLE
B
®

ST B
0.1

871CC-A6

.

CELL
LABEL

CONSTANTDATA LABEL (DL)

MODEL NO

871CC-A6
CS-E/ANN
2B04120008

CONDUCTIVITY/RESISTIVITY CELL

AGENCY LABEL (AL)

2B0412

AL

DL

DL

AL

Figure 17. Sample 871CC Sensor Identification

Electrical Safety Design CodeThe electrical safety design code is printed on the agency plate. See Figure 17. See Table 21 foradditional information.
Table 21. Electrical Safety Specification
Testing Laboratory,
Type of Protection, andArea Classification

Application Conditions

ATEX intrinsically safe for
Temperature Class T3 - T6
II 1 GD EEx ia IIC, Zone 0
T110 °C...T260 °C
ATEX Type n energy limited for Temperature Class T3 - T6
II 3 GD EEx nL IIC, Zone 2
T110 °C...T260 °C

Electrical
Safety Design
Code
CS-E/AAA
CS-E/ANN

NOTE

These sensors have been designed to meet the electrical safety descriptions listed in
the table above. For detailed information, or status of testing laboratory
approvals/certifications, contact Invensys.
Entity Parameters for CS-E/AAA are as follows

30

3. Sensors

MI 611-208 – June 2011

Ui = 35 V
Ii = 150 mA
Pi = See Table 22
Effective Ci = negligibly small
Effective Li = 0 mH
Entity Parameters for CS-E/ANN are as follows
Ui = 35 V
Ii = 150 mA
Pi = See Table 22
Ci = 0 nF
Li = 0 mH
Table 22. Maximum Input Power (Pi)Max Process Temp(°C)
Temperature Class Pi = 0.4 W Pi = 0.6 W
T3
T4
T5
T6

175
135
100
85

175
135
85
50*

* Maximum Ambient Temperature = +45 °C

For the relationship between the input power Pi and the process temperature, refer to Table 4.

Electromagnetic Compatibility (EMC)
The 871CC Sensor complies with the requirements of the European EMC Directive
89/336/EEC when its cable is connected through rigid metal conduit as recommended for873CC*, 873ACC*, 873RS*, 873ARS*, and 875CC Analyzers, and 870ITCC Transmitters.
(*220 V ac, 240 V ac metal enclosures only)

Pressure and Temperature Limits
Pressure and temperature limits vary per sensor mounting as shown in the model number. See
Figure 18.
SENSOR MOUNTING
CELL FACTOR AND ELECTRODE MATERIAL

871CC- A 2
Figure 18. 871CC Model Code Example31

MI 611-208 – June 2011

3. Sensors

Sensor Mounting-A = Threaded Bushing, 3/4 NPT-B = Universal-C = Sanitary-D = Insertion-E = Twist-Lock-F = Threaded Bushing, 3/4 NPT with 1/2 NPT Conduit Connector-G = Dip Sensor-K = Threaded Bushing, 3/4 NPT, High Temperature-L = Sanitary, High Temperature-M = Insertion, High Temperature
Table 23. Pressure and Temperature Limits
Sensor Mtg Code-A through -G-K though -M

Temperature Limits

Pressure Limits

0 and 120 °C (32 and 250 °F)-0.1 and +1.4 MPa (-15 and +200 psi)
120 °C at 3.4 MPa (250 °F at 500 psi)
150 °C at 2.5 MPa (300 °F at 375 psi)
175 °C at 1.7 MPa (350 °F at 250 psi)

Process Wetted Parts
Process wetted parts vary per the cell factor and sensor mounting codes as shown in the model
number. See Figure 18 and the following text.
Sensor Mounting-A = Threaded Bushing, 3/4 NPT-B = Universal-C = Sanitary-D = Insertion-E = Twist-Lock-F = Threaded Bushing, 3/4 NPT with 1/2 NPT Conduit Connector-G = Dip Sensor-K = Threaded Bushing, 3/4 NPT, High Temperature-L = Sanitary, High Temperature-M = Insertion, High Temperature
Cell Factor and Electrode Material

2 = 0.1 cm-1, Titanium
4 = 10 cm-1, Graphite
6 = 0.1 cm-1, Monel

32

3. Sensors

MI 611-208 – June 2011

Table 24. Process Wetted Parts
Cell
SensorSeals/
Removable
Factor Mounting Code O-Rings Insulator
SheathBushing

Electrodes

Sensors with 3/4 NPT Bushing or Twist-Lock Process Connection

0.1 cm-1

10 cm-1-A

EPDM

Ryton (a)

None

-F

EPDM

Ryton

None

Teflon-S Coated300 Grade ss

-K

EPDM

pctfe (a)

None

-E

EPDM

Ryton

None

None (Twist Lock)

-A

EPDM

Noryl

ptfe (a)

-F

EPDM

Noryl

ptfe

Teflon-S Coated300 Grade ss

-K

EPDM

pctfe

ptfe

None (Twist Lock)

-E

EPDM

Noryl

ptfe

-B

EPDM

Ryton

None

316 ss

-G

EPDM

Ryton

None

Noryl

-D

EPDM

Ryton

None

-M

EPDM

pctfe

None

316 ss (Includes
insertion shaft)

-B

EPDM

Noryl

ptfe

316 ss

-G

EPDM

Noryl

ptfe

Noryl

-D

EPDM

Noryl

ptfe

-M

EPDM

pctfe

ptfe

316 ss (Includes
insertion shaft)Titanium or Monel, as
specified by Model
CodeHigh density graphite
encapsulated in goldplated cups

Universal Mount, Insertion, and Dip Sensors

0.1 cm-1

10 cm-1

Titanium or Monel, as
specified by Model
CodeHigh density graphite
encapsulated in goldplated cups

Sensors with Sanitary Fittings
0.1 cm-1

10 cm-1

-C

EPDM

Ryton

None

316 ss

-L

EPDM

pctfe

None

316 ss

-C

EPDM

Noryl

ptfe

316 ss

-L

EPDM

pctfe

ptfe

316 ssTitanium or Monel, as
specified by Model
CodeHigh density graphite
encapsulated in goldplated cups33

MI 611-208 – June 2011

3. Sensors

871CR
Sensor Identification
A cell label similar to that shown in Figure 19 is attached to sensors with sensor mounting codes
A, B, C, D, E, J, and K.
SENSOR MOUNTING CODE

871CR-A1G1A1A1
Agency and data labels are attached to all 871CR cables as shown in Figure 19.

MODEL
STYLE
871CR-A1G1A1A1
A
®

ST A
0.1

871CR-A1G1A1A1.

DATA LABEL (DL)

CELL
LABEL

CONSTANT

CS-E/ANN
2B04120009

MODEL NO

871CR-A1G1A1A1CONDUCTIVITY/RESISTIVITY CELL

AGENCY LABEL (AL)

2B0412

AL

DL

DL

AL

Figure 19. Sample 871CR Sensor Identification

Electrical Safety Design CodeThe electrical safety design code is printed on the agency plate. See Figure 19. See Table 25 foradditional information.
Table 25. Electrical Safety Specification
Testing Laboratory,
Type of Protection, andArea Classification

Application Conditions

ATEX intrinsically safe for
Temperature Class T3 - T6
II 1 GD EEx ia IIC, Zone 0
T110 °C...T260 °C
ATEX Type n energy limited for Temperature Class T3 - T6
II 3 GD EEx nL IIC, Zone 2
T110 °C...T260 °C

34Electrical
Safety Design
Code
CS-E/AAA
CS-E/ANN3. Sensors

MI 611-208 – June 2011

NOTE

These sensors have been designed to meet the electrical safety descriptions listed in
the table above. For detailed information, or status of testing laboratory
approvals/certifications, contact Invensys.
Entity Parameters for CS-E/AAA are as follows:
Ui = 35 V
Ii = 150 mA
Pi = 0.6 W
Effective Ci = negligibly small
Effective Li = negligibly small
Entity Parameters for CS-E/ANN are as follows:
Ui = 35 V
Ii = 150 mA
Pi = 0.6 W
Ci = 0 nF
Li = 0 mH
Table 26. Relationship Between Process Temperature and Temperature Class
Temperature Class Max Process Temp
T3
T4
T5
T6

175 °C
135 °C
85 °C
45 °C

For the relationship between the input power Pi, and the process temperature, refer to Table 4.

Electromagnetic Compatibility (EMC)
The 871CR Sensor with Integral Conduit Fitting (Sensor Mounting Code K) and cableconnected through rigid metal conduit as recommended to 870ITCR Transmitters, complies
with the requirements of the European EMC Directive 89/336/EEC and CENELEC standards
for electromagnetic compatibility for generic emissions EN50081-2 and immunity EN50082-2(Part 2: Industrial Environment).

Pressure and Temperature Limits
Pressure and temperature limits vary per the sensor accessory used for mounting and the insulator
material. The insulator material is identified in the model number. See Figure 20.

35

MI 611-208 – June 2011

3. Sensors

CELL FACTORINSULATOR MATERIALSENSOR MOUNTING

871CR- A 1 G 1 A 1 A 1Figure 20. 871CR Model Code Example
Insulator Material

1 = CPVC
2 = Virgin PVDF
3 = Virgin PEEK
4 = Glass-filled PEEK
5 = Glass-filled Noryl
Refer to Tables 27 through 31 for pressure and temperature limits.
Table 27. Maximum Pressure/Temperature Ratings for Sensors in Bushing Mounts
Maximum Pressure/
Temperature Rating

Bushing Material/Insulator Material
CPVC/CPVC

250 psig at 27 °C (80 °F) (a)Virgin PVDF/Virgin PVDF

250 psig at 24 °C (75 °F) (b)Virgin PEEK/Virgin PEEK

250 psig at 175 °C (350 °F)

Titanium/Virgin PVDF

250 psig at 121 °C (250 °F)

Titanium/Virgin PEEK

250 psig at 175 °C (350 °F)

Glass-Filled Noryl/Glass-Filled Noryl

150 psig at 121 °C (250 °F)

Glass-Filled PEEK/Glass-Filled PEEK

250 psig at 175 °C (350 °F)

316 SS/Glass-Filled Noryl

250 psig at 121 °C (250 °F)

316 SS/Glass-Filled PEEK

250 psig at 175 °C (350 °F)(a)Linearly derated to 50 psig at 88 °C (190 °F)(b)Linearly derated to 42 psig at 121 °C (250 °F)

Table 28. Maximum Pressure/Temperature Ratings for Flow Chambers
Material

Maximum Pressure/
Temperature Rating(a)

PVC
CPVC
Virgin PVDF
Virgin PEEK
316 SS

60 psig at 50 °C (122 °F)
60 psig at 50 °C (122 °F)
60 psig at 50 °C (122 °F)
250 psig at 175 °C (350 °F)
500 psig at 175 °C (350 °F)(a) Actual sensor rating may derate actual pressure-temperature
ratings listed.

36

3. Sensors

MI 611-208 – June 2011

Table 29. Maximum Pressure/Temperature Ratings for Sensors in Tri-Clamp Mountings
Used With
Insulator

Maximum
Pressure/Temperature
Rating

Virgin PDVF
250 psig at 121 °C (250 °F)
Virgin PEEK
250 psig at 175 °C (350 °F)
Glass-Filled PEEK 250 psig at 175 °C (350 °F)
Glass-Filled Noryl 250 psig at 121 °C (250 °F)

Table 30. Maximum Pressure/Temperature Ratings for Sensors in Flange Mounts
Used With
Insulator

Maximum
Pressure/Temperature
RatingCPVC
198 psi at 88 °C (190 °F)
Virgin PDVF
184 psig at 121 °C (250 °F)
Virgin PEEK
167 psig at 175 °C (350 °F)
Glass-Filled PEEK 167 psig at 175 °C (350 °F)
Glass-Filled Noryl 184 psig at 121 °C (250 °F)

Table 31. Maximum Pressure/Temperature Ratings for Ball Valves and Insertion Sensors
Ball Valve/Insertion Sensor Material

Maximum Pressure/
Temperature Rating

Virgin PVDF/Virgin PVDF
100 psig at 60 °C (140 °F)
316 ss/CPVC
250 psig at 82 °C (180 °F)
316 ss/Virgin PVDF
250 psig at 121 °C (250 °F)
316 ss/Virgin PEEK
500 psig at 175 °C (350 °F)
316 ss/Glass-Filled PEEK
500 psig at 175 °C (350 °F)
316 ss/Glass-Filled Noryl
250 psig at 175 °C (350 °F)(a)Linearly derated to 60 psig at 121 °C (250 °F)

Process Wetted Parts
Process wetted parts vary per the cell factor and sensor mounting codes as shown in the model
number. See Figure 20 and the following text.

37

MI 611-208 – June 2011

3. Sensors

Cell Factor-A = 0.1 cm-1 Conductivity/Resistivity with Class B 1000  RTD-B = 0.1 cm-1 Resistivity with Class A 1000  RTD-C = 10 cm-1 Conductivity with Class B 1000  RTD
Sensor Mounting

A = Universal Bore Piece with 3/4 NPT CPVC Bushing
B = Universal Bore Piece with 3/4 NPT Virgin PVDF Bushing
C = Universal Bore Piece with 3/4 NPT Virgin PEEK Bushing
D = Universal Bore Piece with 3/4 NPT Glass Filled PEEK Bushing
E = Universal Bore Piece with 3/4 NPT Glass Filled Noryl Bushing
F = Universal Bore Piece with 1 1/2 inch Tri-Clamp Fitting
Table 32. Process Wetted Parts
Cell Mounting
FactorCode
Mounting-1
0.1 cm A, B, C, F, CPVC, Virgin PVDF,
J, K
Virgin PEEK, or
Titanium Bushings;
Titanium or 316 ss
Tri-Clamp Fittings;
or 316 ss Flanges
G
PVDF Insertion Shaft
H
10 cm-1 D, E, F,
J, K

H

38

316 ss Insertion Shaft

Glass-Filled PEEK,
Glass-Filled Noryl,
316 ss Bushings, or
316 ss Tri-Clamp
Fittings; or 316 ss
Flanges
316 ss Insertion Shaft

Insulator
Electrodes Seals/O-ring Sheath
CPVC orTitanium Teflon-coated –Virgin PVDF or or Monel EPDM
Virgin PEEK

Virgin PVDF

Titaniumor Monel
Titanium

CPVC or
Virgin PVDF or
Virgin PEEK
Glass-Filled
Graphite/
PEEK orTitanium
Glass-Filled Noryl Cup

Glass-Filled
Graphite/
PEEK orTitanium
Glass-Filled Noryl Cup

EPDM and Teflon
Teflon-coated and
EPDM
Titanium(a)3. Sensors

MI 611-208 – June 2011

FT10 Electrodeless Conductivity Sensor,
ATEX Entity Approval as Type ia and Type n
The FT10 Conductivity Sensor is ATEX Approved as Type ia and Type n for use in Zone 0 and
Zone 2 hazardous (classified) areas respectively.
The sensor is typically installed in the (potentially) hazardous area. The 875EC Analyzer, the870ITEC Transmitter or other ATEX Approved apparatus can be installed in either the nonhazardous or the hazardous area. Wiring and installation methods are determined by the area
(hazardous or nonhazardous) in which the associated equipment is installed. In all cases,
installation should be in accordance with regulations of the country of installation! WARNING
Explosion Hazard - Do not disconnect equipment when a flammable or combustible
atmosphere is present unless power has been switched off.
! WARNING
Safety Ground - The grounding stud or conductive mounting means of the enclosureof the associated apparatus must be connected to the potential equalizing system
within the explosive atmosphere.
! WARNING
Ingress Protection - The FT10 sensor housing meets IP66 ingress protection only
when the Calibration Port Cover is securely installed on the sensors with integral cable(FT10-MT…1 or FT10-MT…2). The patch cable or protective cover must also be
securely installed on the sensors with cable connector (FT10-MT…6) to meet IP66
ingress protection.
Associated Apparatus - Connection of the FT10 Sensor to the associated apparatus
must be made in such a way that the degree of ingress protection remains at least IP54
per EN 60529 and is suitable for the environment.
! WARNING
Calibration Port Cover - The Calibration Port Cover must remain securely installed
during normal operation in a (potentially) hazardous location.
! WARNING
Associated Apparatus - The associated apparatus must be ATEX certified as either
Type ia or Type n and must have compatible entity parameters. The associatedapparatus manufacturer's installation instructions must be followed when installingthe associated apparatus.
Both the Sensor and the Associated Apparatus must have the same safety rating, either
both Type ia or both Type n.

39

MI 611-208 – June 2011

3. Sensors! WARNING
Ultra-Violet Radiation Exposure - The housing material will yellow and become
brittle with extended exposure to UV radiation (sunlight).
! WARNING
Parts of the enclosure are non-conducting and may generate an ignition-capable levelof electrostatic charge under certain extreme conditions. Ensure that the equipment is
not installed in a location where it may be subjected to external conditions whichmight cause a build up of electrostatic charge on nonconducting surfaces.
Additionally, cleaning of the equipment should be done only with a damp cloth.

Sensor Identification
A Data Label with model number, serial number including date of manufacture, cell constants,pressure and temperature information is affixed to the front surface of the sensor. An Agency
Label with certification information is affixed to the rear surface. A third Warning Label is affixed
to the side with the calibration connector. Refer to the sample labels in Figures 21, 22, and 23.

Model Number: Per Sales Order
Serial Number: Origin code followed by anumber set per manufacturing standard
procedures. The Origin Code is explained
immediately below this figure.
GCF and ECF: Geometric and Electronic Cell
Factor values are determined by the model
number (line size) of the sensor.
MWP: Maximum Working Pressure values are
determined by the model number (line size) of
the sensor.
MRT: Maximum Rated Temperature is the
maximum process fluid temperature allowed at
the maximum ambient temperature Ta=65 °C.

Figure 21. Sample Data Label40

3. Sensors

MI 611-208 – June 2011

X

Figure 22. Sample Agency LabelThe type of protection (Type ia or Type n) is determined during fabrication and marked on the
Agency Label. Once determined, the type of protection may not be changed.

Figure 23. Sample Warning Label

Associated Apparatus in Nonhazardous Area,
Sensor in Hazardous Area
There are no special requirements when the 875EC Analyzer, 870ITEC Transmitter or other
ATEX entity approved associated apparatus is installed in a nonhazardous area. See Figure 24.

41

MI 611-208 – June 2011

3. Sensors

NON-HAZARDOUS LOCATIONHAZARDOUS LOCATION
Ex ia IIC T6 Ta=65 °C (-10 °C Ta 65 °C)
ZONE 0ATEX ENTITY APPROVED
ATEX ENTITY APPROVED
FT10 ELECTRODELESSCONDUCTIVITY SENSOR

870ITEC TRANSMITTER, OR
OTHER ATEX ENTITYAPPROVED APPARATUS

Figure 24. Sensor in Zone 0 Hazardous Location

NON-HAZARDOUS LOCATIONHAZARDOUS LOCATION
Ex nC nL IIC T6 (-10 °C Ta 65 °C)
ZONE 2

ATEX ENTITY APPROVED
875EC ANALYZER,
870ITEC TRANSMITTER, OR
OTHER ATEX ENTITYAPPROVED APPARATUS

ATEX ENTITY APPROVED
FT10 ELECTRODELESSCONDUCTIVITY SENSOR

Figure 25. Sensor in Zone 2 Hazardous Location

Associated Apparatus and Sensor in Hazardous Area
All connections to the 875EC Analyzer, 870ITEC Transmitter or other ATEX entity approved
associated apparatus (except connections to the sensor) must be protected by conduit to prevent
damage to the wiring in the hazardous area. Conduit and all fittings to the 875EC Analyzer,
870ITEC Transmitter or associated apparatus, including the sensor cable fitting must meet
ingress protection ratings of IEC IP66 within the hazardous area; follow the manufacturer's safety
installation instructions for the associated apparatus. See Figure 26.
NON-HAZARDOUS
LOCATION

HAZARDOUS LOCATION
Ex ia IIC T6 Ta=65 °C (-10 °C Ta 65 °C)
ZONE 0ATEX ENTITY APPROVED
870ITEC TRANSMITTER,
OR OTHER ATEX ENTITYAPPROVED APPARATUS

ATEX ENTITY APPROVED
FT10 ELECTRODELESSCONDUCTIVITY SENSOR

Figure 26. Sensor and Associated Apparatus in Zone 0 Hazardous Location42

3. Sensors

MI 611-208 – June 2011

HAZARDOUS LOCATIONNON-HAZARDOUS
LOCATION

Ex nC nL IIC T6 (-10 °C Ta 65 °C)
ZONE 2

ATEX ENTITY APPROVED
875EC ANALYZER,
870ITEC TRANSMITTER,
OR OTHER ATEX ENTITYAPPROVED APPARATUS

ATEX ENTITY APPROVED
FT10 ELECTRODELESSCONDUCTIVITY SENSOR

Figure 27. Sensor and Associated Apparatus in Zone 2 Hazardous Location

Entity and Field Wiring Parameters
The entity and field wiring parameters listed below apply to all models of the FT10 ElectrodelessConductivity Sensor.
Vmax (Ui) = 10 V
Imax (Ii) = 80 mA
Pmax (Pi) = 0.200 W
Ci = 0 F
Li = 5.5 mH

Pin Terminated Integral Cable and Patch Cable
Connections
The individual connections are color coded. Additionally, each connection has a numbered sleevecorresponding to the terminal number on the 875EC Analyzer or 870ITEC Transmitter forincreased wiring ease. Refer to Figure 30 for 875EC Sensor Interface terminal connections or refer
to MI 611-224 for this and more general information. Refer to Figure 31 or 870ITEC Sensor
Interface terminal connections or refer to MI 611-212 for this and more general information. The
ring terminal on the high temperature cable should be connected to chassis or earth ground in theassociated apparatus.
Table 33. Cable Connections
Function/Signal
Description

Wire Sleeve
Designation

Sensor Drive
Sensor Drive
Drive Screen
Sensor ReturnSensor Return
RTD Return
RTD Drive

1
2
3
4
5
6
7

Standard Temperature High Temperature
Connector Pin(PVC) Cable(TFE) Cable
A
B
C
D
E
F
G

BLK
WHT
CLEAR (Shield 1)
RED
CLEAR (Shield 2)
BRN
BLU

BLK
WHT
CLEAR (Shield 1)
RED
CLEAR (Shield 2)
BRN
BLU
43

MI 611-208 – June 2011

3. Sensors

Table 33. Cable Connections
Function/Signal
Description

Wire Sleeve
Designation

Standard Temperature High Temperature
Connector Pin(PVC) Cable(TFE) Cable

RTD 3-Wire
Cable Shield

8
H
Ring Terminal No Connection

ORN
Not Used

ORN
CLEAR (Shield)

BLK #1
WHT #2DR 1#3DR 3
GRN (NOT USED)DR 2 #5#1 BLK#2 WHT#3 CLEAR (DR 1 & DR 3)#4 RED#5 CLEAR (DR 2)

RED #4
BRN #6
BLU #7
ORN #8
DR 4 RING TERMINAL#6 BRN#7 BLU#8 ORNOVERALL DRAIN
HIGH TEMP. CABLE ONLYSCHEMATIC DIAGRAM

Figure 28. Cable Connections

Patch Cable Connector
Connector pin designations and the connector layout are shown for reference. Patch Cables inboth PVC (standard temperature) and TFE (high temperature) are available. Refer to
MI 611-217 for information.

A

G
H

F
E

B
C

D

Figure 29. Patch Cable Connector (as viewed on sensor)

44

ANALOG OUTPUTS ALARM 2

ALARM 1

G

N

L

1NO

1NC

1C

2NO

2NC

2C

8
RTD 3-WIRE
(ORN)
MA2+

MA2–

7
RTD DRIVE(BLU)

DIGITAL INPUTS & PWR DIGITAL COMM

MA1–

MA1+

6
RTD RETURN(BRN)
RS-232

5
SENSOR RETURN(CLEAR)
COM1

4
COM2

SENSOR RETURN
(RED)

3
COM3

SENSOR SCREEN(SHIELD) (CLEAR)COM4

SENSOR DRIVE
(WHT)
DV+

DV–

SENSOR DRIVE
(BLK)
DI 4

DI 3

DI 2

DI1

2

MI 611-208 – June 20111

3. Sensors

POWER

BLACK

GROUND LEAD WITH EYE TERMINALWHITESENSOR DRIVESENSOR DRIVE
CLEAR
SENSOR SCREENSENSOR RETURNREDSENSOR RETURN
CLEAR
BROWN RTD MEASUREMENT
RTD RETURNBLUEORANGE RTD 3-WIRE

Figure 30. 875EC Analyzer Sensor Wiring Connections

1 2 3 45 6 7 8

INPUT
POWER

+

CASE GROUND

Figure 31. 870ITEC Transmitter Sensor Wiring Connections

Special Conditions of use
The housing is designed for indoor use only. Refer to Ultra-Violet Radiation Exposure warningon page 40.

45

MI 611-208 – June 201146

3. Sensors

4. 870IT Series Transmitters
Transmitter Identification
The data label and agency label are fastened to left side surface of the enclosure. A typical datalabel is shown in Figure 32. A typical agency label is shown in Figure 33.
Refer to the data label to determine the model number, origin code, supply voltage, andmaximum power.

MODEL
CERT SPECREF NO.
ORIGIN
SUPPLY
POWER
FUSE
CALIB
CONFIG CD
ALARM
OUTPUT
CUST DATAMODEL AND STYLE
ELECTRICAL CLASSIFICATION CODE
SALES ORDER / SERIAL NUMBER (IF APPLICABLE)
PLANT OF MANUFACTURE, DATE, SERIAL NO.
SUPPLY VOLTAGE
POWER CONSUMPTIONMEASUREMENT RANGECOMMUNICATIONSOUTPUT
USER INFORMATIONFOXBORO MA USA

Figure 32. Sample 870IT Transmitter Data Label47

MI 611-208 – June 2011

4. 870IT Series Transmitters

SEE
WARNING
BELOW

x

Figure 33. Sample Type ia Certified 870IT Transmitter Agency Label

Electrical Certification Rating
The electrical certification information is printed on the agency label. See Figure 33. See Table 34
for additional information.
! WARNING
The type of protection (Type ia or Type n) is determined at the time of fabricationand the agency label is appropriately marked. Once determined, this certification may
not be changed.
Table 34. Product Safety Specifications
Testing Laboratory, Types ofProtection, and Area Classification

Application Conditions

ATEX intrinsically safe for
Temperature Class T4 -T6.
II 1 G EEx ia IIC
ATEX Type n energy limited for II 3 G Temperature Class T4 -T6.
EEx nL IIC

48

Electrical
Safety Design
Code
AAA
ANN

4. 870IT Series Transmitters

MI 611-208 – June 2011

NOTE

These transmitters have been designed to meet the electrical safety descriptions
listed in the table above. For detailed information, or status of testing laboratory
approvals/certifications, contact Invensys.
The entity parameters for the supply and output circuit in type of protection EEx ia IIC andEEx nL IIC with the following maximum values are:Ui = 30 V
Ii = 110 mA
Pi = See Table 35 for EEx ia IIC; Table 36 for EEx nl IIC
Ci = 2 nF
Li = 0 mH
The entity parameters for the sensor circuit in type of protection intrinsic safety EEx ia IIC withthe following maximum values are:
870ITPH-..AAA-.
(Terminals 1, 2, 2A, 3
3A, 4, 5, 5A, 6, 7, 8, G)

870ITEC-..AAA-.
(Terminals 1, 2,
3, 4, 5, 6, 7, 8)

870ITCR-..AAA-.
(Terminals 1, 1A, 1B,
1C, 1D, 1E, 2, 3, 4, 5)

Uo = 8.6 V
Io = 40 mA
Po = 0.35 W
Co = 0.5 F
Lo = 1 mH

Uo = 6.5 V
Io = 110 mA
Po = 0.1 W
Co = 0.3 F
Lo = 0.1 mH

Uo = 13 V
Io = 40 mA
Po = 0.35 W
Co = 0.5 F
Lo = 1 mH

The entity parameters for the sensor circuit in type of protection EEx nL IIC, with the following
maximum values are:NOTE

The 870ITEC-..AAA-. Transmitter is also approved for Type ia protection whenused with a Type ia certified 871EC or 871FT Sensor with a maximum cable lengthof 30 m (100 ft).
870ITPH-..ANN-.
(Terminals 1, 2, 2A, 3
3A, 4, 5, 5A, 6, 7, 8, G)

870ITEC-..ANN-.
(Terminals 1, 2,
3, 4, 5, 6, 7, 8)

870ITCR-..ANN-.
(Terminals 1, 1A, 1B,
1C, 1D, 1E, 2, 3, 4, 5)

Uo = 8.6 V
Io = 40 mA
Po = 0.35 W
Co = 43 F
Lo = 28 mH

Uo = 6.5 V
Io = 110 mA
Po = 0.1 W
Co = 300 F
Lo = 3.7 mH

Uo = 13 V
Io = 40 mA
Po = 0.35 W
Co = 5.5 F
Lo = 28 mH

NOTE

The 870ITEC-..ANN-. Transmitter is also approved for Type n protection whenused with a Type n certified 871EC or 871FT Sensor with a maximum cable lengthof 30 m (100 ft).

49

MI 611-208 – June 2011

4. 870IT Series Transmitters

Table 35. Maximum Input Power (Pi) for Intrinsic Safety (EEx ia) Protection
Temperature ClassMax Process Temp
(°C)

T4
T4
T4
T5
T5
T5
T6

-20 to +70-20 to +75-20 to +85-20 to +40-20 to +60-20 to +85-20 to +40

Pi (W)
0.8
0.7
0.6
0.7
0.6
0.5
0.5

Table 36. Maximum Input Power (Pi) for Energy Limited (EEx nL) Protection
Temperature ClassMax Process Temp
(°C)

T4
T4
T4
T5
T5
T6

-20 to +70-20 to +75-20 to +85-20 to +70-20 to +75-20 to +60

Pi (W)
0.8
0.7
0.6
0.8
0.7
0.8

OUTPUT LOAD (OHMS)

The power supply requirements for a 4 to 20 mA output are 12.5 to 30 V dc for 870IT Series
ATEX certified products. See Figure 34.
860
800

MAX LOAD = (V-12.5)/0.0204

700

MIN LOAD WITH
PC-BASEDCONFIGURATOR

600
500

OPERATING
AREA

400
300
200
100
0

NOTE
The transmitter will function with an output load
less than 250 ohms provided that a PC-Basedconfigurator is not connected to it. Connecting a
PC-Based configurator while operating with lessthan a 250 ohm load may cause disturbances
and/or communication problems.

OPERATING
AREA
0

12.5
20
30
SUPPLY VOLTAGE, V dc

Figure 34. Power Supply Requirements50

4. 870IT Series Transmitters

MI 611-208 – June 2011

Origin CodeThe origin code identifies the area of manufacture, the year and week of manufacture, and theserial number. See Figure 32. In the example 2B04120526, 2B means the product was
manufactured in the Analytical Division, 04 identifies the year of manufacture as 2004, 12, theweek of manufacture in that year, and 0526 the serial number.

Special Warnings! WARNING
On intrinsically safe transmitters, if the optional storm door (option -7) is employed,take precautions to avoid electrostatic charges.
! WARNING
The housing on 870IT transmitters is aluminum. Therefore, transmitters certified as
intrinsically safe must be installed so that ignition sources due to impact and friction
sparks are excluded.
! WARNING
Make electrical connections in such a way that the degree of ingress protection of theenclosure remains at least IP54 per EN60529 and is suitable for the environment.

51

MI 611-208 – June 201152

4. 870IT Series Transmitters

5. 876 Series Transmitters
Transmitter Identification
The data label and agency label are fastened to left side surface of the enclosure. A typical datalabel is shown in Figure 35. A typical agency label is shown in Figure 36.
Refer to the data label to determine the model number, origin code, supply voltage, andmaximum power.

MODEL / ST

MODEL

CERT SPECREF NOORIGIN
SUPPLYPOWERCALIBCONFIG CD
OUTPUT
CUST DATACERT SPECREF NO.
ORIGIN
SUPPLY
POWER
FUSE
CALIB
CONFIG CD
ALARM
OUTPUT
CUST DATAMODEL AND STYLE
ELECTRICAL CLASSIFICATION CODE
SALES ORDER / SERIAL NUMBER (IF APPLICABLE)
PLANT OF MANUFACTURE, DATE, SERIAL NO.
SUPPLY VOLTAGE
POWER CONSUMPTIONMEASUREMENT RANGECOMMUNICATIONSOUTPUT
USER INFORMATIONINVENSYS PROCESS SYSTEMS INC
FOXBORO, MA 02035 U.S.A.

FOXBORO MA USA

Figure 35. Sample 876 Transmitter Data Label53

MI 611-208 – June 2011

5. 876 Series Transmitters

II 1 G Ex ia IIC T4 Gaoo-20 C ≤ Ta ≤ 60 C FM10ATEX 0026X
II 3 G Ex ic IIC T4 Gcoo-20 C ≤ Ta ≤ 60 C FM10ATEX 0027X
INSTALL PER MI 611-208oo

Ex ia IIC T4 Ga ; -20 C ≤ Ta ≤ 60 Coo
Ex ic IIC T4 Gc ; -20 C ≤ Ta ≤ 60 C
IECEx FMG10.0013XooEx nL IIC T4; -20 C ≤ Ta ≤ 60 C
IECEx FMG10.0014X
INSTALL PER MI 611-206

PERMANENTLY MARK ONE TYPE OF
PROTECTION. ONCE CHOSEN, IT
CAN NOT CHANGE. NOT FOLLOWINGTHESE INSTRUCTIONS WILL JEOPARDIZE
EXPLOSION SAFETY.

WARNING: EXPLOSIVE HAZARD.
DO NOT DISCONNECT EQUIPMENTUNLESS POWER HAS BEEN
SWITCHED OFF OR THE AREA IS
KNOWN TO BE NON-HAZARDOUS.

IP66

Figure 36. Sample Type ia Certified 870IT Transmitter Agency Label

Electrical Certification Rating
The electrical certification information is printed on the agency label. See Figure 36. See Table 37
for additional information.
! WARNING
The type of protection (Type ia or Type ic) is determined at the time of fabricationand the agency label is appropriately marked. Once determined, this certification may
not be changed.
Table 37. Product Safety Specifications
Testing Laboratory, Types ofProtection, and Area Classification
ATEX intrinsically safe for Zone 0
II 1 G Ex ia IIC T4 Ga
ATEX intrinsically safe for Zone 2
II 3 G Ex ic IIC T4 Gc

54

Application Conditions
FM10ATEX0026X
Temperature Class T4(-20 < Ta < +60 °C) IP66
FM10ATEX0027X
Temperature Class T4(-20 < Ta < +60 °C) IP66

Electrical
Safety Design
Code
AA

AN

5. 876 Series Transmitters

MI 611-208 – June 2011

NOTE

These transmitters have been designed to meet the electrical safety descriptions
listed in the table above. For detailed information, or status of testing laboratory
approvals/certifications, contact Invensys.
The entity parameters for the supply and output circuit in type of protection Ex ia IIC andEx ic IIC with the following maximum values are:Ui < 30 V
Ii < 110 mA
Pi < 800 mW
Ci = 3 nF
Li = 9.9 H
The entity parameters for the sensor circuit in type of protection intrinsic safety Ex ia IIC withthe following maximum values are:876PH-..AA-.
(Terminals 1, 2, 2A, 3, 3A, 4, 5,
5A, 6, 7, 8)
Uo = 8.6 V
Io = 40 mA
Po = 0.35 W
Co = 0.5 F
Lo = 1 mH

876EC-..AA-.
(Terminals 1, 2, 3, 4, 5, 6, 7, 8)

876CR-..AA-.
(Terminals 1, 2, 2A, 3, 4, 5)

Uo = 6.5 V
Io = 110 mA
Po = 0.10 W
Co = 0.3 F
Lo = 0.1 mH

Uo = 13 V
Io = 40 mA
Po = 0.35 W
Co = 0.5 F
Lo = 1 mH

The entity parameters for the sensor circuit in type of protection Ex ic IIC, with the following
maximum values are:876PH-..AN-.
(Terminals 1, 2, 2A, 3, 3A, 4, 5,
5A, 6, 7, 8)
Uo = 8.6 V
Io = 40 mA
Po = 0.35 W
Co = 43 F
Lo = 28 mH

876EC-..AN-.
(Terminals 1, 2, 3, 4, 5, 6, 7, 8)

876CR-..AN-.
(Terminals 1, 2, 2A, 3, 4, 5)

Uo = 6.5 V
Io = 110 mA
Po = 0.10 W
Co = 300 F
Lo = 3.7 mH

Uo = 13 V
Io = 40 mA
Po = 0.35 W
Co = 5.5 F
Lo = 28 mH

The power supply requirements for a 4 to 20 mA output are 12.5 to 30 V dc for 876 Series ATEX
certified products. See Figure 37.

55

OUTPUT LOAD (OHMS)

MI 611-208 – June 2011

5. 876 Series Transmitters

860
800

MAX LOAD = (V-12.5)/0.0204

700

MIN LOAD WITH
PC-BASEDCONFIGURATOR

600
500

OPERATING
AREA

400
300
200
100
0

NOTE
The transmitter will function with an output load
less than 250 ohms provided that a PC-Basedconfigurator is not connected to it. Connecting a
PC-Based configurator while operating with lessthan a 250 ohm load may cause disturbances
and/or communication problems.

OPERATING
AREA
0

12.5
20
30
SUPPLY VOLTAGE, V dc

Figure 37. Power Supply Requirements

Origin CodeThe origin code identifies the area of manufacture, the year and week of manufacture, and theserial number. See Figure 35. In the example 2B10120526, 2B means the product was
manufactured in the Analytical Division, 10 identifies the year of manufacture as 2010, 12, theweek of manufacture in that year, and 0526 the serial number.

Special Warnings! WARNING
The 876 Transmitter enclosure is made of aluminum alloy. When used in a potentiallyexplosive atmosphere requiring apparatus equipment category 1 G, the 876
Transmitter must be installed so that, even in the event of rare incidents, an ignition
source due to impact or friction between the enclosure and iron/steel is excluded.
! WARNING
The optional storm door (option code -7) and keypad area is nonconducting and may
generate an ignition-capable level of electrostatic charge under certain extreme
conditions. Ensure that the equipment is not installed in a location where it may besubjected to external conditions which might cause a build-up of electrostatic charge
on nonconducting surfaces. Additionally, cleaning of the storm door and keypad area
should only be done with a damp cloth.
! WARNING
Make electrical connection in such a way that the degree of ingress protection on theenclosure remains at least IP66 per IEC 60529 and is suitable for the environment.

56

5. 876 Series Transmitters

MI 611-208 – June 201157

MI 611-208 – June 2011

5. 876 Series Transmitters

ISSUE DATESDEC 2002
MAR 2003
JAN 2004
SEP 2005
OCT 2005
APR 2008
DEC 2010

JUN 2011

Vertical lines to the right of text or illustrations indicate areas changed at last issue date.
Invensys Operations Management
5601 Granite Parkway Suite 1000
Plano, TX 75024
United States of America
http://www.iom.invensys.com

Global Customer Support
Inside U.S.: 1-866-746-6477
Outside U.S.:1-508-549-2424 or contact
your local Invensys representative.
Website: http://support.ips.invensys.com

Invensys and Foxboro, are trademarks of Invensys plc, its
subsidiaries, and affiliates.
All other brand names may be trademarks of theirrespective owners.

Copyright 2002-2011 Invensys Systems, Inc.
All rights reserved
MB 1000611