No. SS2-GTX00D-0100

Advanced Transmitter

Differential Pressure Transmitters
Model GTX15D/GTX30D/GTX31D/GTX32D/
GTX40D/GTX41D/GTX42D/GTX71D/GTX72DOVERVIEW
Advanced Transmitter is a microprocessor-based smart
transmitter that features high performance and excellent
stability. Capable of measuring gas, liquid, vapor, and liquid
levels, it transmits 4 to 20 mA DC analog and digital signals
according to the measured differential pressure.
It can also execute two-way communications between thecommunicator, thus facilitating selfdiagnosis, range resetting, and automatic zero/span adjustment.
SFN, HART and FOUNDATION Fieldbus are available.
* Refer to SS2-GTX00Z-0100 for FOUNDATION Fieldbus type
for the items marked with [].

FEATURESHigh performance and stability

Remote communication• Unique characterization and composite semiconductor
sensors realize high accuracy up to 0.04 % F.S.

• Two-way communication using digital output facilitates
self-diagnosis, range resetting, automatic zero adjustment,
and other operations.

• Our proven sensor technology enables Longterm stability
up to 0.1 % of URL per 10-year.

• HART protocol communication is available. (Option)

Wide measuring range (range ability)• A wide measuring range is available from a single model.
This feature is highly effective in taking measurement overa wide range and reducing the need for inventory.
• Model GTX30D/31D/32D: 0.5 to 100 kPa (range ability:
200 to 1)

A diverse lineup• A wide range of models is available to meet user requirements. They include draft range differential pressure,standard differential pressure, high differential pressure,standard differential pressure/high static pressure, andhigh differential pressure/high static pressure models.
• A wide variety of corrosion-resistant materials for wettedparts is also available.

Specifications are subject to change without notice.

1“This product is designed for general industrial use.”

33rd edition

No. SS2-GTX00D-0100

Azbil Corporation

PRODUCT APPROVALS []ATEX Intrinsic Safety and Dust certifications(Code A2)

FM Explosionproof for Division System/
Flameproof for Zone System (Code F1)
FM18US0129X

0344

Explosionproof for Use in Class I, Division 1, Groups A,
B, C and D T5; Dust-ignitionproof for Use in Class II,
Division 1, Groups E, F and G , Class III Division 1, T5;−40 °C≤Tamb≤+85 °C;
Flameproof for Use in Class I, Zone 0/1, AEx db IIC T5 Ga/
Gb; −30 °C≤Tamb≤+80 °C; −30 °C≤Tprocess≤100 °C;
Hazardous (Classified) locations Indoor/Outdoor Enclosure
Type 4X, IP67
Factory sealed, conduit seal not required for Divisionapplications
Caution - Use supply wires suitable for 5 °C above surrounding
ambient

II 1 G Ex ia IIC T4 Ga -30 °C≤Tamb≤+60 °C Tprocess=105 °C
IP66/IP67
ELECTRICAL PARAMETERS: Ui=30 V, li=93 mA, Pi=1 W,
Ci=5 nF, Li=0.5 mH
II 2 D Ex ia IIIC T105 °C Db -30 °C≤Tamb≤+60 °C Tprocess= 105 °C
IP66/IP67
II 3 G Ex ic IIC T4 Gc -30 °C≤Tamb≤+60 °C Tprocess=110 °C
IP66/IP67
ELECTRICAL PARAMETERS: Ui=30 V, Ci=5 nF, Li=0.5 mH

NEPSI Flameproof and Dust Certifications(Code N1)

FM Intrinsic Safety (Code F2)
FM18US0252X

Ex d IIC T6 Gb; Ex tD A21 IP66/IP67 T85 °C
Tprocess= 80 °C; -30 °C≤Tamb≤+75 °C
Ex d IIC T5 Gb; Ex tD A21 IP66/IP67 T100 °C
Tprocess= 95 °C; -30 °C≤Tamb≤+80 °C
Ex d IIC T4 Gb; Ex tD A21 IP66/IP67 T115 °C
Tprocess= 110 °C; -30 °C≤Tamb≤+80 °C

Intrinsically Safe for Use in Class I, Division 1, Groups A, B,
C and D; Class II, Division 1, Groups E, F and G; Class III,
Division 1; T4 −40 °C < Tamb < +60 °C; Class I, Zone 0,
AEx ia IIC;T4 Ga −30 °C < Tamb < +60 °C; Tprocess = 105 °C
Hazardous (Classified) Locations; Indoor/Outdoor Enclosure
TYPE 4X, IP67; 80395278, 80395279, and 80395280.
Entity Parameters: Vmax (Ui)=30 Volts, Imax (Ii)=100 mA,
Pi=1 W, Ci=10 nF, Li=0.5 mH

NEPSI Intrinsic Safety Certification (Code N2)
Ex ia IIC T4 Ga -30 °C≤Tamb≤+60 °C Tprocess=105 °C
IP66/IP67
Ex ia IIIC T105 °C Db -30 °C≤Tamb≤+60 °C Tprocess=105 °C
IP66/IP67
Ex ic IIC T4 Gc -30 °C≤Tamb≤+60 °C Tprocess=110 °C
IP66/IP67
ELECTRICAL PARAMETERS: Ui=30 V, Ii=93 mA, Pi=1 W,
Ci=5 nF, Li=0.5 mH

FM Nonincendive (Code F5)
FM18US0252X
Nonincendive, with Nonincendive Field Wiring Parameters,for Use in Class I, Division 2, Groups A, B, C and D, T4;
Class I, Zone 2, Group IIC, T4; Suitable for Class II & III,
Division 2, Groups E, F and G, T4; −40 °C < Tamb < +60 °C;
Hazardous (Classified) Locations; Indoor/Outdoor Enclosure
TYPE 4X, IP67; 80395494.
Nonincendive Field Wiring Parameters: Vmax (Ui)=30 Volts,
Ci=10 nF, Li=0.5 mH

Use cable suitable for 5 °C above ambient temperature

IECEx Flameproof and Dust Certifications(Code E1)
Certificate No. IECEx KEM 08.0001 X

Combination of F1, F2 and F5 (Code F6)

Ex db IIC T6 Ga/Gb -30 °C≤Tamb≤+75 °C Tprocess≤85 °C
Ex db IIC T5 Ga/Gb -30 °C≤Tamb≤+80 °C Tprocess≤100 °C
Ex db IIC T4 Ga/Gb -30 °C≤Tamb≤+80 °C Tprocess≤110 °C
Ex tb IIIC T85 °C Db -30 °C≤Tamb≤+75 °C Tprocess≤85 °C
Ex tb IIIC T100 °C Db -30 °C≤Tamb≤+75 °C Tprocess≤100 °C
Ex tb IIIC T110 °C Db -30 °C≤Tamb≤+75 °C Tprocess≤110 °C

ATEX Flameproof and Dust Certifications(Code A1)
0344

KEMA 07ATEX0200 X

KEMA 08ATEX0004 X

Caution - Use supply wires suitable for 5 °C above surrounding
ambient

II 1/2 G Ex db IIC T6 Ga/Gb -30 °C ≤ Tamb ≤ +75 °C Tprocess≤85 °C
II 1/2 G Ex db IIC T5 Ga/Gb -30 °C ≤ Tamb ≤ +80 °C Tprocess≤100 °C
II 1/2 G Ex db IIC T4 Ga/Gb -30 °C ≤ Tamb ≤ +80 °C Tprocess≤110 °C
II 2 D Ex tb IIIC T85 °C Db -30 °C ≤ Tamb ≤ +75 °C Tprocess≤85 °C
II 2 D Ex tb IIIC T100 °C Db -30 °C ≤ Tamb ≤ +75 °C Tprocess≤100 °C
II 2 D Ex tb IIIC T110 °C Db -30 °C ≤ Tamb ≤ +75 °C Tprocess≤110 °C
Caution - Use supply wires suitable for 5 °C above surrounding
ambient

IECEx Intrinsic Safety and Dust Certifications(Code E2)
Certificate No. IECEx KEM 07.0058 X
Ex ia IIC T4 Ga -30 °C≤ Tamb ≤+60 °C Tprocess=105 °C
IP66/IP67
ELECTRICAL PARAMETERS: Ui=30 V, li=93 mA, Pi=1 W,
Ci=5 nF, Li=0.5 mH
Ex ia IIIC T105 °C Db -30 °C ≤Tamb≤ +60 °C Tprocess=105 °C
IP66/IP67
Ex ic IIC T4 Gc -30 °C≤Tamb≤ +60 °C Tprocess=110 °C
IP66/IP67
ELECTRICAL PARAMETERS: Ui=30 V, Ci=5 nF, Li=0.5 mH
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Azbil Corporation

No. SS2-GTX00D-0100

KCs Flameproof (Code K1)

PED Conformity (2014/68/EU)

11-AV4BO-0323 (without option YD)
20-AV4BO-0357X (with option YD)

The maximum pressures applicable under the Sound Engineering Practice (SEP) section of the Pressure Equipment
Directive depend on the type of fluid measured, as shown in
the table below.

Ex d IIC T6 -30 °C≤Tamb≤+75 °C Tprocess=85 °C
Ex d IIC T5 -30 °C≤Tamb≤+80 °C Tprocess=100 °C
Ex d IIC T4 -30 °C≤Tamb≤+80 °C Tprocess=110 °C

Measured fluid Group*

18-AV4BO-0254X (without option YD)
20-AV4BO-0489X (with option YD)

Gas

Ex tD A21 T85 °C -30 °C≤Tamb≤+75 °C-30 °C≤Tprocess≤85 °C
Ex tD A21 T100 °C -30 °C≤Tamb≤+75 °C-30 °C≤Tprocess≤100 °C
Ex tD A21 T110 °C -30 °C≤Tamb≤+75 °C-30 °C≤Tprocess≤110 °C

Liquid12
1
2

Pressure

Applicable models

200 barAll models except(20 MPa) GTX32D, 42D, 72D, 82G
1,000 bar
All models(100 MPa)
500 barAll models(50 MPa)
1,000 bar
All models(100 MPa)

Note) Group 1 comprises fluids defines as: explosive, extremely flammable, highly flammable, flammable, very toxic, toxic andoxidizing.

TIIS Flameproof (Code J1)
Ex d IIC T4Group 2 comprises all other fluids not refer to group 1

Use cables with the maximum allowable temperature, 70 °C
in case ambient temperature excess 50 °C

Any model having a maximum working pressure that ishigher than the pressure corresponding to its group does notconform to SEP.

TAIWAN Flameproof (Code T1)

Models GTX32D, 42D, 72D conform to PED according toModule A.

Certificate No.(2015)00113X
Ex db IIC T5 Gb -30 °C ≤Tamb≤ +80 °C Tprocess≤100 °C
Caution - Use supply wires suitable for 5 °C above surrounding
ambient

TAIWAN Intrinsic Safety (Code T2)
Certificate No.(2016)00227X
Ex ia IIC T4 Ga -30 °C≤Tamb≤+60 °C Tprocess≤105 °C
IP66/IP67
ELECTRIAL PARAMETERS: Ui=30 V, li=93 mA, Pi=1 W,
Ci=5 nF, Li=0.5 mH
Ex ic IIC T4 Gc -30 °C≤Tamb≤+60 °C Tprocess≤110 °C
IP66/IP67
ELECTRIAL PARAMETERS: Ui=30 V, Ci=5 nF, Li=0.5 mH
Please refer to specification, “SS2-GTX00Z-0100” for the
Fieldbus code below.

FM Intrinsic safety ia/ic FISCO and Fieldbus(Code F4)
FM Fieldbus Nonincendive (Code F7)
ATEX Intrinsic safety ia FISCO and Fieldbus(Code A4)
ATEX Intrinsic safety ic FISCO and Fieldbus(Code A7)
IECEx Intrinsic safety ia FISCO and Fieldbus(Code E4)
IECEx Intrinsic safety ic FISCO and Fieldbus(Code E7)
EMC Conformity []EN 61326-1 (industrial electromagnetic environment)
EN 61326-2-3

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No. SS2-GTX00D-0100

Azbil Corporation

FUNCTIONAL SPECIFICATIONSWorking pressure range
ModelType of protection

GTX15D −70 to +210 kPa {-10.1 to 30.4 psi} {−0.7 to +2.1 kgf/cm2}

NEMA 3 and 4X
IEC IP66/67

2.0 kPa abs to 3.5 MPa {0.29 psia to 508 psi} {15 mmHg
abs to 35 kgf/cm2}*1
2.0 kPa abs to 21 MPa {0.29 psia to 3,045 psi} {15 mmHg abs
GTX31Dto 210 kgf/cm2}*1 *2 *5 (For vacuum pressure, see Figure 1, 2)
2.0 kPa abs to 42 MPa {0.29 psia to 6,091 psi} {15 mmHg
GTX32D abs to 420 kgf/cm2}*3 (For vacuum pressure, see Figure
1, 2)
2.0 kPa abs to 3.5 MPa {0.29 psia to 508 psi} {15 mmHg
GTX40Dabs to 35 kgf/cm2}*1
2.0 kPa abs to 21 MPa {0.29 psia to 3,045 psi} {15 mmHg abs
GTX41Dto 210 kgf/cm2}*1 *2 *5 (For vacuum pressure, see Figure 1, 2)
2.0 kPa abs to 42 MPa {0.29 psia to 6,091 psi} {15 mmHg
GTX42D abs to 420 kgf/cm2}*3 (For vacuum pressure, see Figure
1, 2)
2.0 kPa abs to 20 MPa {0.29 psia to 3045 psi} {15 mmHg abs
GTX71Dto 210 kgf/cm2}*1 *2 *5 (For vacuum pressure, see Figure 1, 2)
2.0 kPa abs to 42 MPa {0.29 psia to 6,091 psi} {15 mmHg
GTX72D abs to 420 kgf/cm2}*3 (For vacuum pressure, see Figure
1, 2)GTX30D

Measuring span/Setting range

GTX31D

GTX32D

GTX40D

GTX41D

GTX42D

GTX71D

GTX72D

Note) *1.	With PVC wetted parts, the maximum working pressureis 1.5 MPa {218 psi}.
*2.	With 304 SST or 316SST bolts and nuts, the maximum
working pressure is 10 MPa {1450 psi}.
*3.	With 304 SST or 316SST bolts and nuts, the maximum
working pressure is 20 MPa {2900 psi} for process connection code P,R,T and W .
For process connection code S and Y, the maximum
working pressure is 23 MPa {3336psi}.
*4.	The GTX15D is a highly sensitive instrument. During installation, take care regarding the mounting orientationand installation place so that the GTX15D is not directly
exposed to radiant heat or wind.
*5.	If S1 or T3 is selected as a model number option, the design pressure for the strength calculation sheet is 14 Mpamax.
*6.	For vacuum pressure, see Figure 1, 2.

133.3

Normal operating range

101
80
53
27
13

Operative limit

GTX30D

Operative limit

GTX15D

Measuring Span
Setting Range
0.1 to 2 kPa−1 to +1 kPa{0.4 to 8 inH2O}{-4 to +4 inH2O}{10 to 200 mmH2O}{−100 to +100 mmH2O}
0.5 to 100 kPa−100 to +100 kPa{2 to 400 inH2O}{-400 to +400 inH2O}{50 to 10160 mmH2O} {−10160 to +10160 mmH2O}
0.5 to 100 kPa−100 to +100 kPa{2 to 400 inH2O}{-400 to +400 inH2O}{50 to 10160 mmH2O} {−10160 to +10160 mmH2O}
0.5 to 100 kPa−100 to +100 kPa{2 to 400 inH2O}{-400 to +400 inH2O}{50 to 10160 mmH2O} {−10160 to +10160 mmH2O}
35 to 700 kPa−100 to +700 kPa{5.1 to 101psi}{-14.5 to 101 psi}
{0.35 to 7 kgf/cm2}{−1 to +7 kgf/cm2}
35 to 700 kPa−100 to +700 kPa{5.1 to 101psi}{-14.5 to 101 psi}
{0.35 to 7 kgf/cm2}{−1 to +7 kgf/cm2}
35 to 700 kPa−100 to +700 kPa{5.1 to 101psi}{-14.5 to 101 psi}
{0.35 to 7 kgf/cm2}{−1 to +7 kgf/cm2}
0.25 to 14 MPa−0.1 to +14 MPa{36.3 to 2,030 psi}{-14.5 to 2,030 psi}
{2.5 to 140kgf/cm2}{−1 to +140 kgf/cm2}
0.25 to 14 MPa−0.1 to +14 MPa{36.3 to 2,030 psi}{-14.5 to 2,030 psi}
{2.5 to 140 kgf/cm2}{−1 to +140 kgf/cm2}

Working Pressure P (kPa abs)

Model

Working pressure range

8.0
5.3
2.0

Unusable range

1.3−50 −40

40

50

60

70

80

90 100 110 115

Temperature of wetted parts (°C)

Figure 1. Working pressure and temperature of wettedparts section (for code A of Fill fluid)

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Azbil Corporation

No. SS2-GTX00D-0100
1345

Working pressure P ( kPa)

Operative limit=
133.3

Normal operating
range

799

101.3

600
53

−40

−10

0

40

75

250

80

Temperature of wetted parts (°C)

012.5 18
25.6 30
Supply voltage (V DC)

Figure 2. Working pressure and temperature of wettedparts section (for code J and H of Fill fluid)Note) For communication with a communicator, a load resistance of250 Ω or more is necessary.

Operative limit

Operating limit

Working pressure P (kPa )0

Normal operating range

Output []Analog output (4 to 20 mA DC) with SFN
Analog output (4 to 20 mA DC) with HART
Digital output (DE protocol)

−70

−40

−15

0

Output signal []

65 70 80

Temperature of wetted parts (°C)

3.6 to 21.6 mA
3.8 to 20.5 mA (NAMUR NE43 compliant)Figure 3. Working pressure and temperature of wettedparts section (for model GTX15D, code A of Fillfluid)−20

Normaloperatingrange

Operative limit

0

Failure Alarm []Upper: 21.6 mA or more
Lower: 3.6 mA or less

Operative limit

210

−50

−40

−10 0

40

42

Figure 5. Power supply voltage vs. Load resistance

210

Working pressure P (kPa )Supply voltage−12.5
0.021965 70

Temperature of wetted parts (°C)

Figure 4. Working pressure and temperature of wettedparts section (for model GTX15D, code J of Fillfluid)

Power Supply []12.5 to 42 V DC
Limited to 12.5 to 30 V DC for intrinsic safety, Nonincendive types

Power Supply voltage and load resistancecharacteristics []See Figure 5.
Limited to Load resistance: 250 to 1345 Ω for SFN or DE
communication. 250 to 600 Ω for HART communication.
Power supply voltage: 12.5 to 30 V DC for intrinsic safety,
Nonincendive types

5No. SS2-GTX00D-0100

Azbil Corporation

Ambient temperature limit
Unit: °C
Ambient temperature limit(Operative limits)(*2)-15 to +65(-40 to +70)
-10 to +75(-40 to +80)
-40 to +85(-50 to 93)-10 to +75(-40 to +80)
0 to 55(-10 to +60)
-15 to +85(-20 to +93)
-10 to +75(-40 to +80)

for code A of Fill fluid
GTX15Dfor code J and H of Fill fluidfor code A of Fill fluid
GTX30D, GTX40D,GTX31D, GTX41D,
GTX71Dfor code J and H of Fill fluid
PVC meterbody covers (*1)

GTX32D, GTX42D,
GTX72Dfor code A of Fill fluidfor code J and H of Fill fluid

Temperature ranges ofwetted parts(Operative limits)-15 to +65(-40 to +70)
-10 to +65(-40 to +70)
-40 to +110(-50 to +115)-10 to +75(-40 to +80)
0 to 55(-0 to +60)
-15 to +110(-20 to +115)-10 to +75(-40 to +80)

-25 to +80(-30 to +85)

All models

With digital indicators(*2)

For explosion-proof
type

Refer to the page on PRODUCT APPROVALS.

Transportation andstorage conditions(Operative limits) (*2)
-15 to +65-50 to +85-50 to +85-50 to +85-10 to +60-15 to +85-50 to +85-25 to +80

Unit: °F
Ambient temperature limit(Operative limits)(*2)
for code A of Fill fluid
GTX15Dfor code J and H of Fill fluidfor code A of Fill fluid
GTX30D, GTX40D,GTX31D, GTX41D,
GTX71Dfor code J and H of Fill fluid
PVC meterbody covers (*1)

GTX32D, GTX42D,
GTX72Dfor code A of Fill fluidfor code J and H of Fill fluid

5 to 149(-40 to +158)
14 to 167(-40 to +176)-40 to 185(-58 to +199)
14 to 167(-40 to +176)
32 to 131
(14 to +140)
5 to 185(-13 to +199)
14 to 167(-40 to +176)-13 to +176(-22 to +185)

All models

With digital indicators(*2)

For explosion-proof
type

Refer to the page on PRODUCT APPROVALS.

Temperature ranges ofwetted parts(Operative limits)
5 to 149(-40 to +158)
14 to 149(-40 to +158)-40 to 230(-58 to +239)
14 to 167(-40 to +176)
32 to 131
(14 to +140)
5 to 230(-13 to +239)
14 to 167(-40 to +176)

Transportation andstorage conditions(Operative limits) (*2)
5 to 185-58 to +185
-58 to +185
-58 to +185
14 to 140
5 to 185-58 to +185
-13 to +176

*1. Applicable combinations with models GTX31D, 41D, 71D.
*2. F
 or models with an indicator, compare the upper and lower limit temperatures with those of models without an indicator, and apply thelower value for the upper limit and the higher value for the lower limit.

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Azbil Corporation

No. SS2-GTX00D-0100

Ambient humidity limits

OPTIONAL SPECIFICATIONS

5 to 100 % RH

Oil free finish

Stability against supply voltage change

The transmitter is shipped with oil-free wetted parts.

±0.005 % FS/V

Adapters for anticorrosion materials

Response time []These are adaptor flanges to connect 82 mm pipes made of
anticorrosion materials [excluding Alloy C-276 (Equivalent
to Hastelloy C-276)] to 54 mm general-purpose pipes.

Below 100 msec. (model GTX30D/31D, when damping timeis set to 0 sec.)
Below 150 msec. (other models, when damping time is set to
0 sec.)

External zero/span adjustment function

Damping time []The transmitter can be easily adjusted to zero or span in thefield.

Selectable from 0 to 128 sec. (HART)
Selectable from 0 to 32 sec. in ten stages (SFN)

Indicator must be selected to enable this option.
Fieldbus type does not have span adjustment.

Zero Stability

Elbow±0.1 % of URL per 10 year (GTX30D/31D/32D/40D/41D/42D)±0.2 % of URL per 10 year (GTX71D/72D)±1.0 % of URL per 10 year (GTX15D)This is an adaptor for changing the electrical conduit connection port from the horizontal to the vertical direction,
if required by wiring conditions in the field. One or two
elbows may be used as needed.

Lightning protection []Applicable Standards; IEC 61000-4-5
Peak value of current surge (80/20 μ sec.): 6000 A

Conformance to Non SI units
We deliver transmitters set to any Non SI units as specified.

Vibration characteristics

Safety Transmitter

Amplitude: 0.42 mm / Frequency: 5 to 60 Hz
Acceleration: 29.4 m/s2 (3G)/60 to 200 Hz

Select this option to be used as a component of Safety Instrument System (SIS).

Shock characteristics

Models GTX_ _ _ is complied with IEC 61508, certified according to Safety Integrity Level 2 (SIL-2).

Acceleration 9.8 m/s2 (1G)This option is not applicable for FOUNDATION Fieldbus type,
DE communication type, external zero/span adjustment(option A2), and Alarm output (option Q7).

Indicator
The digital LCD indicator (optional) shows the output inpercentage or in engineering units. Range for engineering
unit is from -99999 to 99999 when set at the factory, andform -19999 to 19999 when using the communicator.
Specify the following items when placing order withengineering units,

Alarm Output (contact output)
Contact output is prepared as alarm output when alarm(Output Alarm/Sensor Temp. Alarm) condition is detected.
It can be set to or Normally Close.
Contact output type : One open collector (NPN)
Contact rating: 30 V DC max., 30 mA DC max.
Residual voltage at output ON: 3.0 V max.
Operating mode: Normally Open (default)
Normally Close is not recommended.
When this option is selected, CHECK terminals for current
check cannot be used.
This option is not applicable for FOUNDATION Fieldbus type,
and with intrinsic safety, Nonincendive types.

• Pressure range• Engineering unit of pressure• Method of display, either linear or square-root.
These data may be set or changed using thecommunicator.

Advanced diagnostics []This option is applicable for FOUNDATION Fieldbus type.
Refer to SS2-GTX00Z-0100.

Custom calibration
Calibrate for the specified pressure range at the factory.

Long vent drain:
Maintenance, process conditions, and safety are addressedby using a drain whose length (60 mm) is longer than thestandard length (27 mm).
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No. SS2-GTX00D-0100

Azbil Corporation

PHYSICAL SPECIFICATIONSMoisture-free finish (including oil-free finish):Shipped with water content and oil content removed fromthe wetted part. (A small amount of fluorine oil is applied tovent/drain plugs in order to prevent sticking.)

Materials
Fill fluid
Silicone oil for Regular type
Fluorine oil for oxygen and chlorine service

Test report:
Shows the results of having tested the appearance, input output characteristics, insulation resistance, dielectric strength,etc., of the transmitter.

Center body
316 SST

Transmitter case

Mill sheet:

Aluminum alloy, CF8M (Equivalent to 316 SST)

Shows data related to the chemical composition, heat treatment condition, and mechanical properties of the wetted partmaterial.

Meter body cover flange
SCS14A (Equivalent to 316 SST) or 316 SST, PVC

Test report (with traceability certificate):

Bolts and nuts (for fastening meter body cover)Comprised of three documents: a traceability diagram, acalibration certificate, and a test report.

Carbon steel (SNB7), 304 SST, 316 SST, 630 SST

O-ringWithstand pressure and air tight test
(general-purpose use):

NBR

For Wetted parts

Shows the results of the wetted part withstand pressure test
(10 minutes) and air tight test (10 minutes). For this test,
adapter flanges are mounted on the product.

Adapter flange (option)
SCS14A (Equivalent to 316 SST), PVC

Strength calculation sheet:

Center bodyShows the results of having calculated the strength of themeter body cover, flanges, and bolts.

316 SST (Diaphragm 316L SST)
Alloy C-276 (Equivalent to Hastelloy C-276), Tantalum,
316L SST

Vents and plugs
316 SST, PVC

Gaskets
PTFE

Mounting Bracket
Bracket304 SST

U-bolt and nuts
304 SST

Paint
Standard: Baked acrylic paintCorrosion-proof: Baked urethane paintColor
Housing: Silver N-8.2
Cap: azbil bordeaux 2.5R 2.25/5

WeightApprox. 3.4 kg (model GTX30D/40D)
Approx. 3.7 kg (model GTX31D/41D/71D)
Approx. 6.3 kg (model GTX32D/42D/72D)

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Azbil Corporation

No. SS2-GTX00D-0100

INSTALLATION

Wiring notes
WARNING

Electrical connection• To avoid shocks, do not perform electrical wiring work with
wet hands or with live wires.

G 1/2 internal thread,
1/2 NPT internal thread, M20 internal thread.

CAUTION

Grounding• Do wiring work properly in conformance with the specifications. Wiring mistakes may result in malfunction or irreparable
damage to the instrument.

Resistance 100 Ω max.

Mounting
Can be installed on a 2-inch horizontal or vertical pipe (canbe directly mounted on a process pipe)• Use a power supply that conforms to the specifications. Useof an improper power supply may result in malfunction or
irreparable damage to the instrument.

Process connection• Use a power supply with overcurrent protection for this instrument.

Rc 1/2, 1/2 NPT internal thread and Rc 1/4, 1/4 NPT internal thread.

Handling precautions for HART
specification devices

TRANSMITTER HANDLING NOTES
To get the most from the performance this transmitter canoffer, please use it properly noting the points mentioned
below. Before using it, please read the Instruction Manual.

• If you need to operate with a secondary host (HART
communicator, etc.), set the communication interval of
the primary host (DCS, device management system) to
8 seconds or more, or suspend communication from theprimary host. If the primary host repeats HART communication within 8 seconds, the request from the secondary
host may not be received (communication may not be
possible).

Transmitter installation notes
WARNING• When installing the transmitter, ensure that gaskets do not protrude from connecting points into the process (such as adapter
flange connection points and connecting pipes and flanges).
Failure to do so may cause a leak of process fluid, resulting inharm from burns, etc. In addition, if the process fluid contains
toxic substances, take safety measures such as wearing goggles
and a mask to prevent contact with the skin and eyes and toprevent inhalation.

• If electrical noise in the environment prevents HARTcommunications with the host, take countermeasures such as
separating the signal cables from the source of the noise,
improving the grounding, changing to shielded signal
cables, etc. Even if noise interferes with HART communications, the 4–20 mA analog signal will be unaffected andcan be used for control.

• Use the transmitter within the operating ranges stated in
the specifications (for explosion-proofing, pressure rating,temperature, humidity, voltage, vibration, shock, mounting
direction, atmosphere, etc.). Using the transmitter outside theoperating conditions may cause device failure or fire, resulting
in a harmful physical risk of burning or the like.

• If this product is being operated in multidrop mode, there
is a limit to the number of devices that can be used. If you
are using multidrop mode, please consult with us.

• When performing wiring work in explosion-proof areas, follow
the work method specified in the explosion-proof guidelines.

CAUTION• After installation, do not use the transmitter as a foothold or
put your weight on it. Doing so may cause damage.
• Be careful not to hit the glass indicator with tools etc. This
could break the glass and cause injury.
• The transmitter is heavy. Wear safety shoes and take care when
installing it.
• Impact to transmitter can damage sensor module.

9No. SS2-GTX00D-0100

Azbil Corporation

PERFORMANCE SPECIFICATIONS
Reference accuracy
Shown for each item are the percentage ratio for x (kPa), which is the greatest value of either the upper range value (URV)*1,
the lower range value (LRV)*2 or the span.
For FOUNDATION Fieldbus type, read URV as XD_SCALE “EU_100” and LRV as XD_SCALE “EU_0”.

Model GTX15D
Material of wetted parts: Diaphragm; 316L SST, Others; 316 SST
Reference accuracy *4

Linear output:± ( 0.15+0.15×

Square-root output:

When output is 50 to 100 %: same as linear output

1.0
%
x )

When output is 7.1 to 50 %: linear output ×
When output is less than 7.1 %: dropout
Ambient Temperature effect(Shift from the set range)
Change of 30 ºC(Range from −5 to +55 ºC)

Combined shift:1.0± ( 0.19+0.56×%
x )(including zero and span shifts)

Static pressure effect (Shift withrespect to Setting range)
Change of 70 kPa {10.1 psi}

Zero shift:

1
x

)%

Combined shift:1± ( 0.03+0.45×x(including zero and span shifts))%± ( 0.03+0.4×

50%
square – root · output

Model GTX30D/31D (for regular type)
Material of wetted parts: Diaphragm; 316L SST, Others; 316 SST
Reference accuracy *3 *4 *5 *6

Linear output:±0.04 % (For x≥10.0 kPa {40 inH2O})± ( 0.008+0.032×

Square-root output:

10% (For x<10 kPa {40 inH2O})x )When output is 50 to 100 %: same as linear output
When output is 7.1 to 50 %: linear output ×
When output is less than 7.1 %: dropout

50%
square – root · output

Ambient Temperature effect(Shift from the set range) *3
Change of 30 ºC(Range from −5 to +55 ºC)

Combined shift:±0.15 % (For x≥12.5 kPa {50 inH2O})(including zero and span shifts)
12.5± ( 0.075+0.075×% (For x≤12.5 kPa {50 inH2O})
x )Static pressure effect (Shift withrespect to Setting range) *3
Change of 7 MPa {1,015 psi}

Zero shift:± ( 0.03+0.17×

A
%
x )

A= 12.5 (GTX30D/31D)
20 (GTX32D)

Combined shift:A± ( 0.03+0.37×%
x )(including zero and span shifts)*1. URV denotes the process value for 100 % (20 mA DC) output.
*2. LRV denotes the process value for 0 % (4 mA DC) output.
*3. Within a range of URV≥0 and LRV≥0.
*4. Reference accuracy at calibrated condition.
*5. I n case code D “Digital output (DE communication)” is selected, reference accuracy becomes the same as one of “for oxygen/chlorine service”.
*6. In case code “YB” or “YD” of Option selected, Linear output is ±0.05 % (For x≥10.0 kPa {40 inH2O}).

10

Azbil Corporation

No. SS2-GTX00D-0100

Model GTX30D/31D (for oxygen/chlorine service)
Material of wetted parts: Diaphragm; 316L SST, Others; 316 SST
Reference accuracy *3 *4

Linear output:±0.075 % (For x≥50.0 kPa {200 inH2O})±0.1 % (For 50.0 kPa {200 inH2O}>x≥5.0 kPa {20 inH2O})± ( 0.025+0.075×

Square-root output:

5.0% (For x≥5.0 kPa {20 inH2O})x )When output is 50 to 100 %: same as linear output
When output is 7.1 to 50 %: linear output ×
When output is less than 7.1 %: dropout

50%
square – root · output

Ambient Temperature effect(Shift from the set range)
Change of 30 ºC *3(Range from −5 to +55 ºC)

Combined shift:±0.44 % (For x≥12.5 kPa {50 inH2O})(including zero and span shifts)
12.5± ( 0.19+0.25×% (For x≤12.5 kPa {50 inH2O})
x )Static pressure effect (Shift withrespect to Setting range) *3
Change of 7 MPa {1,015 psi}

Zero shift:± ( 0.03+0.17×

20
%
x )

Combined shift:±0.4 % (For x≥20.0 kPa {80 inH2O})(including zero and span shifts)20± ( 0.03+0.37×% (For x<20.0 kPa {80 inH2O})x )Model GTX30D/31D
Material of wetted parts: Diaphragm; Alloy C-276 (Equivalent to Hastelloy C-276), Tantalum, 316L SST Others; Alloy C-276(Equivalent to Hastelloy C-276), Tantalum, 316L SST
Reference accuracy *3 *4

Linear output:±0.2 % (For x≥10 kPa {40 inH2O})± ( 0.125+0.075×

Square-root output:

10% (For x≥10 kPa {40 inH2O})x )When output is 50 to 100 %: same as linear output
When output is 7.1 to 50 %: linear output ×
When output is less than 7.1 %: dropout

Ambient Temperature effect(Shift from the set range)
Change of 30 ºC *3(Range from −5 to +55 ºC)

Combined shift:
20.0± ( 0.55+0.65×%
x )(including zero and span shifts)

Static pressure effect (Shift withrespect to Setting range) *3
Change of 7 MPa {1,015 psi}

Zero shift:± ( 0.03+0.62×50%
square – root · output

20.0
%
x )

Combined shift:
20.0± ( 0.55+0.45×% (x≥20.0 kPa {80 inH2O})
x )(including zero and span shifts)± ( 0.18+0.82×

20.0% (x<20.0 kPa {80 inH2O})x )*3. Within a range of URV≥0 and LRV≥0.
*4. Reference accuracy at calibrated condition.
*5. In case code D “Digital output (DE communication)” is selected, reference accuracy becomes the same as one of “for oxygen/chlorine service”.

11No. SS2-GTX00D-0100

Azbil Corporation

Model GTX32D
Material of wetted parts: Diaphragm; 316L SST, Others; 316 SST
Reference accuracy *4

Linear output:±0.075 % (For x≥50.0 kPa {200 inH2O})±0.1 % (For 50.0 kPa {5000 mmH2O}>x≥5.0 kPa {200 inH2O})± ( 0.025+0.075×

Square-root output:

5.0% (For x<5.0 kPa {20 inH2O})x )When output is 50 to 100 %: same as linear output
When output is 7.1 to 50 %: linear output ×
When output is less than 7.1 %: dropout

50%
square – root · output

Ambient Temperature effect(Shift from the set range)
Change of 30 ºC *3

Combined shift:±0.41 % (For x≥12.5 kPa {50 inH2O})(including zero and span shifts)
12.5± ( 0.18+0.23×% (For x≤12.5 kPa {50 inH2O})
x )Static pressure effect (Shift withrespect to Setting range) *3
Change of 7 MPa {1,015 psi}

Zero shift:

20
%
x )

± ( 0.03+0.17×

Combined shift:±0.4 % (For x≥20.0 kPa {50 inH2O})(including zero and span shifts)20± ( 0.03+0.37×% (For x<20.0 kPa {80 inH2O})x )Model GTX40D/41D/42D
Material of wetted parts: Diaphragm; 316L SST, Others; 316 SST
Reference accuracy *3 *4

Linear output:±0.1 % (For x≥140 kPa {20 psi})± ( 0.025+0.075×

Square-root output:

140% (For x<140 kPa {20 psi})x )When output is 50 to 100 %: same as linear output
When output is 7.1 to 50 %: linear output ×
When output is less than 7.1 %: dropout

50%
square – root · output

Ambient Temperature effect(Shift from the set range)
Change of 30 ºC *3(Range from −5 to +55 ºC)

Combined shift:±0.41 % (For x≥210 kPa {30 psi})(including zero and span shifts)210± ( 0.18+0.23×% (For x<210 kPa {30 psi})x )Static pressure effect (Shift withrespect to Setting range) *3
Change of 7 MPa {1,015 psi}

Zero shift:± ( 0.03+0.17×

700
%
x )

Combined shift:±0.33 % (For x≥700 kPa {102 psi})(including zero and span shifts)
700± ( 0.03+0.37×% (For x<700 kPa {102 psi})x )Model GTX40D/41D
Material of wetted parts: Diaphragm; Alloy C-276 (Equivalent to Hastelloy C-276), Tantalum, 316L SST Others; Alloy C-276(Equivalent to Hastelloy C-276), Tantalum, 316L SST
Reference accuracy *3 *4

Linear output:±0.2 % (x≥140 kPa {20 psi})± ( 0.125+0.075×

Square-root output:

140% (For x<140 kPa {20 psi})x )When output is 50 to 100 %: same as linear output
When output is 7.1 to 50 %: linear output ×
When output is less than 7.1 %: dropout

50%
square – root · output

Ambient Temperature effect(Shift from the set range)
Change of 30 ºC *3(Range from −5 to +55 ºC)

Combined shift:±1.20 % (x≥210 kPa {30 psi})(including zero and span shifts)210± ( 0.55+0.65×% (For x<210 kPa {30 psi})x )Static pressure effect (Shift withrespect to Setting range) *3
Change of 7 MPa {1,015 psi}

Zero shift:± ( 0.03+0.295×

700
%
x )

Combined shift:700± ( 0.08+0.495×%x )(including zero and span shifts)*3. Within a range of URV≥0 and LRV≥0.
*4. Reference accuracy at calibrated condition.
12

Azbil Corporation

No. SS2-GTX00D-0100

Model GTX71D/72D
Material of wetted parts: Diaphragm; 316L SST, Others; 316 SST
Reference accuracy *3 *4

Linear output:±0.15 % (For x≥3.5 MPa {508 psi})± ( 0.1+0.05×

Square-root output:

3.5% (For x<3.5 MPa {508 psi})x )When output is 50 to 100 %: same as linear output
When output is 7.1 to 50 %: linear output ×
When output is less than 7.1 %: dropout

50%
square – root · output

Ambient Temperature effect(Shift from the set range)
Change of 30 ºC *3(Range from −5 to +55 ºC)

Combined shift:±0.41 % (For x≥3.5 MPa {508 psi})(including zero and span shifts)
3.5± ( 0.18+0.23×% (x<3.5 MPa {508 psi})x )Static pressure effect (Shift withrespect to Setting range) *3
Change of 7 MPa {1,015 psi}

Zero shift:7x± ( 0.03+0.17×)%

Combined shift:±0.4 % (For x≥7 MPa {1,015 psi})(including zero and span shifts)7± ( 0.03+0.37×% (For x<7 MPa {1,015 psi})x )Model GTX71D/72D
Material of wetted parts: Diaphragm; 316L SST, Others; 316L SST
Reference accuracy *3 *4

Linear output:±0.2 % (For x≥3.5 MPa {508 psi})± ( 0.15+0.05×

Square-root output:

3.5% (For x<3.5 MPa {508 psi})x )When output is 50 to 100 %: same as linear output
When output is 7.1 to 50 %: linear output ×
When output is less than 7.1 %: dropout

50%
square – root · output

Ambient Temperature effect(Shift from the set range)
Change of 30 ºC *3(Range from −5 to +55 ºC)

Combined shift:±1.20 % (For x≥3.5 MPa {508 psi})(including zero and span shifts)
3.5± ( 0.55+0.65×% (For x<3.5 MPa {508 psi})x )Static pressure effect (Shift withrespect to Setting range) *3
Change of 7 MPa {1,015 psi}

Zero shift:± ( 0.03+0.295×

7
x

)%

Combined shift:7± ( 0.45+0.125×x(including zero and span shifts)) % (For x≥7 MPa {1,015 psi})

7x) % (For x<7 MPa {1,015 psi})± ( 0.08+0.495×*3. Within a range of URV≥0 and LRV≥0.
*4. Reference accuracy at calibrated condition.

13

No. SS2-GTX00D-0100

Azbil Corporation

MODEL SELECTION
Model GTX15D (Standard type for lowest differential pressure)
Model No.: GTX_ _D - Selection I (I II III IV V VI VII) - Selection II (I II III IV V VI) - Option
Basic Model No.
Measuring span

Selection I
I

OutputII Fill fluid
III Material (Meterbody
cover, Vent/Drain
plugs)IV Material (center body)
V Process connections

VI Process installation
VII Bolt/nut

0.1 to 2.0 kPa (0.4 to 8 inH2O)

GTX15DA
4 to 20 mA (SFN Communication)B
4 to 20 mA (HART5 Communication)
FOUNDATION Fieldbus communication *3*4*5 C
D
Digital output (DE communication) *1
4 to 20 mA (HART7 Communication)
F
Regular type (Silicone oil)
For oxygen service (Fluorine oil)
Meterbody cover
Vent/Drain plugs
SCS14A
316 SST(Equivalent to 316 SST)
316 SST (Diaphragm: 316L SST)
Rc 1/2, with adapter flange
Rc 1/4, with adapter flange
Rc 1/4, without adapter flange
1/2 NPT internal thread, with adapter flange
1/4 NPT internal thread, with adapter flange
1/4 NPT internal thread, without adapter flange
Vertical piping, top connection
Vertical piping, bottom connection
Horizontal piping, front connection
304 SST
316 SST *2

A
H
A
A

A
B
C
D
E
F

A
B
C

B
D

*1. Not applicable for the combination with code A2 “With external Zero/Span adjustment”, Q1 “Safety Transmitter” and Q2 “NAMUR NE43
Compliant Output Signal Limits” of Option.
*2. In case this code is selected, code P8 of Option code should be selected.
*3. Not applicable for the combination with code Q1 “Safety Transmitter”and Q2 “NAMUR NE43 Compliant Output signal limits” of Option.
*4. In case code A of indicator is selected, code A2 of Option code should be selected.
*5. Not applicable for the combination with code YB “Assembled in China (for use in China)” and YD “Assembled in China (for use outside of
China)” of Option.

14

Azbil Corporation

No. SS2-GTX00D-0100

Model GTX30D (Standard type for standard differential pressure)
Model GTX40D (Standard type for high differential pressure)

Model No.: GTX_ _D - Selection I (I II III IV V VI VII) - Selection II (I II III IV V VI) - Option
Basic Model No.
Measuring span

Selection I
I

OutputII

Fill fluid

III Material (Meterbody cover,Vent/Drain plugs)
IV Material (center body)
V

Process connections

VI Process installation

VII Bolt/nut

0.5 to 100 kPa (2 to 400 inH2O)
35 to 700 kPa (5.1 to 101psi)

GTX30D
GTX40D

4 to 20 mA (SFN Communication)A
4 to 20 mA (HART5 Communication)
B
C
FOUNDATION Fieldbus communication *3*4*5
D
Digital output (DE communication) *1
4 to 20 mA (HART7 Communication)
F
Regular type (Silicone oil)
For oxygen service (Fluorine oil)
Meterbody cover
Vent/Drain plugs
SCS14A
316 SST(Equivalent to 316 SST)
316 SST (Diaphragm: 316L SST)
Alloy C-276 (Equivalent to Hastelloy C-276)
Rc 1/2, with adapter flange
Rc 1/4, with adapter flange
Rc 1/4, without adapter flange
1/2 NPT internal thread, with adapter flange
1/4 NPT internal thread, with adapter flange
1/4 NPT internal thread, without adapter flange
Vertical piping, top connection
Vertical piping, bottom connection
Horizontal piping, front connection
304 SST
316 SST *2

A
H
A
A
B
A
B
C
D
E
F
A
B
C
B
D

*1. Not applicable for the combination with code A2 “With external Zero/Span adjustment”, Q1 “Safety Transmitter” and Q2 “NAMUR
NE43 Compliant Output Signal Limits” of Option.
*2. In case this code is selected, code P8 “316 SST (Parts in contact with atmosphere)” of Option code should be selected.
*3. Not applicable for the combination with code Q1 “Safety Transmitter”and Q2 “NAMUR NE43 Compliant Output signal limits” of Option.
*4. In case code A of indicator is selected, code A2 of Option code should be selected.
*5. Not applicable for the combination with code YB “Assembled in China (for use in China)” and YD “Assembled in China (for use outside of
China)” of Option.

15

No. SS2-GTX00D-0100

Azbil Corporation

Model GTX31D (High static pressure type for standard differential pressure)
Model GTX41D (High static pressure type for high differential pressure)
Model GTX71D (High static pressure type for highest differential pressure)

Model No.: GTX_ _D - Selection I (I II III IV V VI VII) - Selection II (I II III IV V VI) - Option
Basic Model No.
Measuring span

0.5 to 100 kPa (2 to 400 inH2O)
35 to 700 kPa (5.1 to 101psi)
0.25 to 14 MPa (36.3 to 2,030 psi)

GTX31D
GTX41D
GTX71D

Selection I
IA
4 to 20 mA (SFN Communication)B
4 to 20 mA (HART5 Communication)C
FOUNDATION Fieldbus communication *14*15*16
D
Digital output (DE communication) *1
4 to 20 mA (HART7 Communication)F
II Fill fluid
Regular type (Silicone oil)
For oxygen service (Fluorine oil)
For chlorine service (Fluorine oil) *2
III Material (Meterbody
Meterbody cover
Vent/Drain plugs
cover, Vent/Drain plugs) SCS14A
316 SST(Equivalent to 316 SST)PVC *3 *4
PVC *3 *4 *5 *6IV Material (center body)
316 SST (Diaphragm: 316L SST)
Alloy C-276 (Equivalent to Hastelloy C-276) *7 *8 *9Tantalum *10 *11 *12
316L SST *10 *11 *12
V Process connections
Rc 1/2, with adapter flange *5
Rc 1/4, with adapter flange
Rc 1/4, without adapter flange
1/2 NPT internal thread, with adapter flange *5
1/4 NPT internal thread, with adapter flange
1/4 NPT internal thread, without adapter flange
VI Process installation
Vertical piping, top connection *6 *11
Vertical piping, bottom connection *6 *11
Horizontal piping, front connection
VII Bolt/nut
Carbon steel
304 SST *13
630 SST
316 SST *13 *14
Output

A
H
J
A
C

A
B
C
D

A
B
C
D
E
F

A
B
C

A
B
C
D

*1. N
 ot applicable for the combination with code A2 “With external Zero/Span adjustment”, Q1 “Safety Transmitter” and Q2 “NAMUR NE43
Compliant Output Signal Limits” of Option.
*2. In case code J is selected, code C “Tantalum” of Material (centerbody) should be selected.
*3. 304 SST bolts and nuts material (-B) must be selected when PVC meterbody cover is selected.The max. working pressure is 1.5 MPa.
*4. In case GTX71D, code C cannot be selected.
*5. In case PVC is selected, code A, or D of Process connections should be selected.
*6. In case PVC is selected, code A, or B of Process installation should be selected*7. Please select A1 of option, when a wetted parts Alloy C-276 of GTX71D is selected for assembling a manifold valve.
*8. W
 hen a wetted parts Alloy C-276 of GTX71D is selected, code A or B of process installation should be selected.
*9. W
 hen a wetted parts Alloy C-276 of GTX 71D is selected, code D of Bolt/nut cannot be selected.
*10. In case Manifold valve is used and in case code C, D is used, please select code A1 of Option.
*11. In case code C, or D is selected, code A, or B of Process installation should be selected.
*13. When 304/316 SST bolt/nut is selected, max working pressure rating is 10 MPa (1,450 psi).
*14. Not applicable for the combination with code Q1 “Safety Transmitter”and Q2 “NAMUR NE43 Compliant Output signal limits” of Option.
*15. In case code A of indicator is selected, code A2 of Option code should be selected.
*16. Not applicable for the combination with code YB “Assembled in China (for use in China)” and YD “Assembled in China (for use outside of
China)” of Option.

16

Azbil Corporation

No. SS2-GTX00D-0100

Model GTX32D (High static pressure type for standard differential pressure)
Model GTX42D (High static pressure type for high differential pressure)
Model GTX72D (High static pressure type for highest differential pressure)

Model No.: GTX_ _D - Selection I (I II III IV V VI VII) - Selection II (I II III IV V VI) - Option
Basic Model No.
Measuring span

Selection I
I

OutputII

Fill fluid

0.5 to 100 kPa (2 to 400 inH2O)
35 to 700 kPa (5.1 to 101 psi)
0.25 to 14 MPa (36.3 to 2,030 psi)

III Material (Meterbody cover,Vent/Drain plugs)
IV Material (center body)
V Process connections

VI Process installation

VII Bolt/nut

GTX32D
GTX42D
GTX72D

4 to 20 mA (SFN Communication)A
4 to 20 mA (HART5 Communication)B
FOUNDATION Fieldbus communication *4 *5 *6 C
D
Digital output (DE communication) *1
4 to 20 mA (HART7 Communication)
F
Regular type (Silicone oil)A
For oxygen service (Fluorine oil)
H
Meterbody cover
Vent/Drain plugs
SCS14A
316 SSTA(Equivalent to 316 SST)
316 SST (Diaphragm: 316L SST)A
Rc 1/2, with adapter flange, for high pressure model
Rc 1/4, with adapter flange, for high pressure model
Rc 1/4, without adapter flange, for high pressure model
1/2 NPT internal thread, with adapter flange, for high pressure
model
1/4 NPT internal thread, with adapter flange, for high pressure
model
1/4 NPT internal thread, without adapter flange, for high pressure
model
Vertical piping, top connection
Vertical piping, bottom connection
Horizontal piping, front connection
Carbon steel
304 SST *2
630 SST
316 SST *2 *3

P
R
S
T
W
Y
A
B
C

A
B
C
D

*1. Not applicable for the combination with code A2 “With external Zero/Span adjustment”, Q1 “Safety Transmitter” and Q2 “NAMUR NE43
Compliant Output Signal Limits” of Option.
*2. When 304/316 SST bolt/nut is selected, max working pressure rating is 20MPa{2,900 psi} for Process connection code P,R,T and W.
For Process connection code S and Y, the maximum working pressure is 23MPa{3,336 psi}.
*3. In case this code is selected, code P8 of Option code should be selected.
*4. Not applicable for the combination with code Q1 “Safety Transmitter”and Q2 “NAMUR NE43 Compliant Output signal limits” of Option.
*5. In case code A of indicator is selected, code A2 of Option code should be selected.
*6. Not applicable for the combination with code YB “Assembled in China (for use in China)” and YD “Assembled in China (for use outside of
China)” of Option.

17

No. SS2-GTX00D-0100

Azbil Corporation

Model No.: GTX_ _D - Selection I (I II III IV V VI VII) - Selection II (I II III IV V VI) - Option
Selection II
I

Electrical connection

II Explosion proof [] *14 *15

III Indicator
IV Paint *12
V Failure alarm
VI Mounting bracket

G1/2 *2 *13
G1/2 TIIS explosion proof with 1 cable gland attached *3 *13
G1/2 TIIS explosion proof with 2 cable gland attached *3 *13
1/2 NPT, WatertightM20, Watertight *1
None
FM Explosionproof for Division system/Flameproof for Zone system
FM Intrinsic safety
FM Intrinsic safety ia/ic FISCO and Fieldbus *8
FM Nonincendive
Combination of code F1, F2, and F5
FM Fieldbus Nonincendive *8
ATEX Flameproof
ATEX Intrinsic safety
ATEX Intrinsic safety ia FISCO and Fieldbus *8
ATEX Intrinsic safety ic FISCO and Fieldbus *8
IECEx Flameproof
IECEx Intrinsic safety
IECEx Intrinsic safety ia FISCO and Fieldbus *8
IECEx Intrinsic safety ic FISCO and Fieldbus *8
NEPSI Flameproof
NEPSI Intrinsic safety
TIIS Flameproof *5 *6
KCs Flameproof *6
TAIWAN Flameproof
TAIWAN Intrinsic Safety
NoneWith indicator *7Standard
None (316 stainless steel housing) *4
Corrosion-proof (Urethane)
Upper limit of output at abnormal condition
Lower limit of output at abnormal condition
None (for FOUNDATION Fieldbus) *8None
CF8 (L form) *9
CF8M (L form) *9 *11
304 SST (Flat form) *10

—

1
3
4
A
B

XX
F1
F2
F4
F5
F6
F7
A1
A2
A4
A7
E1
E2
E4
E7
N1
N2
J1
K1
T1
T2

X
A

X
E
H

A
B
X

X
1
2
6

*1. Not applicable for the combination with code F1, F6 of Explosion proof.
*2. Code XX of Explosion proof should be selected.
*3. Code J1 of Explosion proof should be selected.
*4. Not applicable for combination with code 1,3,4 of Electrical connection.
*5. 3 or 4 of Electrical connection should be selected.
*6. Not applicable for the combination with code E of Paint.
*7. In case the code C “FOUNDATION Fieldbus communication” of output is selected, code A2 of Option code should be selected.
*8. In case this code is selected, code C of Output should be selected.
*9. Applicable for wetted parts of material (center body); 316 SST and Alloy C-276 (GTX30D, 40D, 31D, 41D).
*10. Applicable for wetted parts of material (center body); Tantalum, 316L SST and Alloy C-276 (GTX71D).
*11. In case this code is selected, code P8 of Option code should be selected.
*12. In case code X or H is selected, the material of transmitter case is aluminum alloy.
*13.Not applicable for the combination with code YB “Assembled in China (for use in China)” and YD “Assembled in China (for use outside of
China)” of Option.
*14. For FOUNDATION Fieldbus type. Refer to SS2-GTX00Z-0100.
*15. F or option code YB “Assembled in China (for use in China)” and YD “Assembled in China (for use outside of China)” selected, only thefollowing codes can be selected.
YB: XX, N1, N2
YD: XX, F1, F2, F5, F6, A1, A2, E1, E2, T1, T2, K1

18

Azbil Corporation

No. SS2-GTX00D-0100

Model No.: GTX_ _D - Selection I (I II III IV V VI VII) - Selection II (I II III IV V VI) - Option
Option—No options
Adapter flange for corrosion-resistant application (316L SST or Tantalum for the wetted parts of centerbody)With external Zero/Span adjustment *8 *9One elbow (left) *3 *4 *7
One elbow (right) *3 *4 *7
2 elbows *3 *5 *7Long vent/drain plugs
Side vent/drain top *3 *16
Side vent/drain bottom *3 *16
Oil and water free finish
Oil free finish *1
Au Plating Diaphragm316 SST (Parts in contact with atmosphere) *11 *12 *13
Safety Transmitter *2 *9 *14
NAMUR NE43 Compliant Output Signal Limits: 3.8 to 20.5 mA (Output 21.6 mA/selected upper limit, 3.6 mA/selected lower limit) *9 *14
Alarm Output (contact output) *10 *14
Advanced diagnostics *15
Custom calibration
Test report
Mill certificate
Traceability certificate *18
NACE certificate *6
Non SI Unit
Safety label for Taiwan
Assembled in China (for use in China)
Assembled in China (for use outside of China)

XX
A1
A2
G1
G2
G3
G4
G6
G7
K1
K3
L1
P8
Q1
Q2
Q7
Q8
R1
T1
T2
T4
T5
W1
Y2
YB
YD

*1. No need to select when Fill Fluid code H, or J is selected.
*2. Not applicable for the combination with code A2, or Q7 of Option.
*3. Not applicable for the combination with code A, or B of Process installation.
*4. Not applicable for the combination with code F1, F6 of Explosion proof.
*5. Not applicable for any Explosion proof. Please select code XX “None” of Explosion proof.
*6. Applicable for “Alloy C-276”, code B of Material (center body).
*7. Not applicable for the combination with code B “M20, Watertight” electrical connection.
*8. Not applicable for the combination with code X “None” of Indicator. Please select “With indicator”.
*9. Not applicable for the combination with code D “Digital output (DE communication)” .
*10. Not applicable for the combination with code F2, F5, F6, N2, C2, E2, and A2 of Explosion proof.
*11. In case code P8 is selected, code D of Bolt/nut should be selected.
*12. In case code P8 is selected, code E of Paint should be selected.
*13. In case code P8 is selected, code X or 2 of Mounting bracket should be selected.
*14. Not applicable for the combination with code C “Digital output (FOUNDATION Fieldbus communication)” of output.
*15. Not applicable for the combination with code A “4 to 20 mA (SFN Communication)”, B “4 to 20 mA (HART5 Communication)”, and D“Digital output (DE communication)” of output.
*16. Not applicable for the combination with model GTX32D/42D/72D.
*18. Not applicable for the combination with code YB “Assembled in China (for use in China)” and YD “Assembled in China (for use outside of
China)” of Option.

19

No. SS2-GTX00D-0100

Azbil Corporation

DIMENSIONS
Model GTX 31D/41D (Material (center body): 316 SST, Alloy C-276)
Model GTX 71D (Material (center body): 316 SST)
Process connection: Front side

Unit: mm

(148)
118.5
95

(230)
47

103.8

66.2

Conduit entries

96
48

Field terminals

17.7

Blanking
plug

80

Meter
(optional)
4×7/16-20UNF
Depth 12.5
For mounting

(201)

144.3

Adapter flange(optional)

(210)

41.3
47
54

46.8
27

2” Pipe

60(Long vent/Drain valve)

93.6
(126)

25.4

LP sideProcess connection

27
54

HP side Process connection

Process Connection: Top or bottom side
HP sideProcess connection

Field terminals

80

66.2
27

17.7

54

118.5

LP sideProcess connection
(258)
(201)
95

144.3

Adapter flange(optional)
Meter(optional)

25.4

(126)
(230)

Blanking plug

46.8

48
96

93.6

103.8

27
60 Long vent/
Drain valve

Conduit entries

4×7/16-20UNF Depth 12.5 For mounting

54

2” Pipe
41.3

20

57

47

Azbil Corporation

No. SS2-GTX00D-0100

Model GTX 15D (Material (center body): 316 SST)
Model GTX 30D/40D (Material (center body): 316 SST, Alloy C-276)
Process connection: Front side

Unit: mm

(148)
(223)

118.5
96

47

100

48

Blanking
plug

Field terminals

17.7

80

Meter
(optional)

4×7/16-20UNF
Depth 12.5
For mounting

95
66.2

Conduit entries

Adapter flange(optional)

(195)
144.3
(210)

41.3
47
54

2” Pipe27
60(Long vent/Drain valve)

4386(118.5)25.4

LP sideProcess connection

27
54

HP side Process connection

Process Connection: Top or bottom side
195

HP sideProcessconnection

Field terminals

80

66.2
17.7

54

118.5

27

LP sideProcess connection
(258)
95

144.3

Adapter flange(optional)
Meter(optional)

25.4(118.5)

Blanking plug

48

43

96

86
(223)

100

27
60 Long vent/
Drain valve

57

Conduit entries

4×7/16-20 UNF Depth 12.5
For mounting
2” Pipe
54

41.3

21

47

No. SS2-GTX00D-0100

Azbil Corporation

Model GTX 32D/42D/72D
Process connection: Front side

Unit: mm

4×7/16-20UNF
Depth 12.5
For mounting

54

41.3

(162)
118.5

Conduit entries

(265)

95
66.2

96
47

121

17.7

Field terminals

48

Blanking
plug

80

Meter
(optional)

Adapter flange(optional)

(210)
144.3
(214)

51

2” Pipe642760(Long vent/Drain valve)

128

LP sideProcess connection

25.4

(161)

Process Connection: Top or bottom side

22

27
54

HP sideProcess connection

Azbil Corporation

No. SS2-GTX00D-0100

Model GTX 31D/41D (Material (center body): Tantalum, 316L SST)
Model GTX 71D (Material (center body): Tantalum, 316L SST, Alloy C-276)
Process connection: TOP or Bottom side

Unit: mm

GTX 31D/41D (Material (Meter body cover, Vent/Drain plugs: PVC)
Process Connection: Top or bottom side

Unit: mm
HP sideProcess connection

4×M8 screws
Depth 10For mounting

Field terminals
25.5

67
41

18

70.8

120

82

42.8
76

LP sideProcess connection
Adapter flange(optional)
32.4 25.4

1/2 NPT PlugMeter
(optional)

46.8

48

83.5

96

224

89

22

2” PipeElectrical conduit
connection
1/2 NPT
internal thread

38.4
67

120
202.0223

No. SS2-GTX00D-0100

Azbil Corporation

TERMINAL CONNECTION(Not applicable for Fieldbus. See SS2-GTX00Z-0100 for Fieldbus.)
Table 1: Terminal connection
M4
External ground screw

Symbol

DetailsS+
S−
CHK/ALPower supply and output signal +Power supply and output signal −/Check meter −Check meter +GroundTable 2: Terminal connection (option “Q7”: Alarm output)

S+

SymbolS+
S−
CHK/ALS−

CHK/AL

Details
Power supply and output signal +Power supply and output signal −Alarm +
Ground/Alarm −HART® is a registered trademark of the FieldComm Group.
FOUNDATION™ is a trademark of the FieldComm Group.

Please read “Terms and Conditions” from the following URL
before ordering and use.

https://www.azbil.com/products/factory/order.html
Specifications are subject to change without notice.

1-12-2 Kawana, Fujisawa
Kanagawa 251-8522 Japan
https://www.azbil.com/

1st edition: May 2008
33rd edition: July 2023

24
(16)

No part of this publication may be reproduced or duplicatedwithout the prior written permission of Azbil Corporation.