AConcept

FISCO

EntityUi (Vmax)
Ii (Imax)
Pi (Pmax)

17.5 V
500mA
5.5 W

24 V
250mA
1.2 W

See also installation notes
for using power supply

Ci £ 5nF Li £ 10 µH
Leakage current £ 50 µA

FM approved
Associated apparatus
suitable for FISCO concept
or
Assocciated Nonincendive
Field Wiring

RCB

Installation Notes RID14
FM Approved Apparatus must be installed in accordance with manufacturer instructions.
Install per National Electrical Code (NFPA 70)
Use supply wires suitable for 5°C above surroundings.
Warning: Substitution of components may impair intrinsic safety or suitability for Class I, Division 2.

NONINCENDIVE-40°C ... +80°C

T5-40°C ... +70°C

T6-40°C ... +55°C

Class II, III / Div. 1 / Groups EFG- A dust tight seal must be used for conduit entries when the field indicator is used in a Class II or Class III location.

INTRINSICALLY SAFE

IS

Class I / Div. 1 / Groups ABCD

- FM approved associated apparatus must meet the following requirements:- Uo or Voc or Vt £ Ui (Vmax) and Io or Isc or It £ Ii (Imax) and Po or Pmax £ Pi (Pmax)- The maximum non-hazardous area voltage must not exceed 250 V.
- The Installation should be in accordance with the National Electrical Code (ANSI/NFPA 70) and ANSI/ISA RP
12.6.01(except chapter 5)- Be aware of multiple earthing of screen. The screen must be connected in accordance with National Electrical Code.
- The polarity for connecting + and - is of no importance due to an internal rectifier.
RID14 is suitable for the connection to a Profibus PA/Foundation Fieldbus system according to Entity- or FISCO
Concept

Pfanzelt
Volume (mm³)

Designed

Pfanzelt
Refer to protection notice
ISO 16016

Drawing No.

Date (yyyy-mm-dd)

12 08 00 111

2009-07-06
Date (yyyy-mm-dd)

Unit

2009-07-05

Edge of working parts Geometrical tolerancing
ISO 2768-mH-E
ISO 13715

Part No.

RID14-

Dwg.rev.

-Scale1:1
Format

A4

Revision no.

-71540273

Revision date (yyyy-mm-dd)

Name

Material--

XA02305R/09/EN/01.20

Title

CONTROL DRAWING FM
IS/NI/DIPD

D

Approved

SeriesObjekt version

SheetCC

DIP

Class I / Div. 2 / Groups ABCD

- Depending on location install per National Electrical Code (NEC) using wiring methods described in article 500
through article 510.
- Intrinsic safety barrier not required. Vmax £ 35 V DC.
- Warning: Do not disconnect equipment unless power has been switched off or the area is known to be nonhazardous.
- Nonincendive field wiring installation
The Nonincendive Field Wiring Circuit Concept allows interconnection of Nonincendive Field Wiring Apparatus
with Associated Nonincendive Field Wiring Apparatus or Associated Intrinsically Safe Apparatus or AssociatedApparatus not specifically examined in combination as a system using any of the wiring methods permitted forunclassified locations, when Voc £ Vmax, Ca ³ Ci + Ccable, La ³ Li + Lcable.
Field indicator Nonincendive Field Wiring parameters are as follows:
Ui or Vmax £ 35 V DCCi £ 5 nF
Li £ 10 µF
For these current controlled circuits, the parameter Imax is not required and need not to be aligned withparameter Isc and It of the Associated Nonincendive Field Wiring Apparatus or Associated Apparatus.
- Warning: Explosion Hazard- Do not disconnect equipment unless power has been switched off or the area isknown to be non-hazardous- The field indicator is suitable to be installed according the FNICO concept.

Temperature range

DUST IGNITION PROOF

NIB

Any
FM Approved
Intrinsically
Safe Apparatus
suitable for
Entity-concept
orFISCO concept

Any FM Approved
Termination with
R=90...100W
C=0...2.2µF

A

FISCO-Concept
The FISCO Concept allows interconnection of intrinsically safe apparatus to associated apparatus not specifically examined in suchcombination.
The criteria for interconnection is that the voltage (Ui or Vmax), the current (Ii or Imax) and the power (Pi or Pmax) which
intrinsically safe apparatus can receive and remain intrinsically safe, considering faults, must be equal or greater than the voltage(Uo or Voc or Vt), the current (Io or Isc or It) and the power (Po or Pmax) levels which can be delivered by the associatedapparatus, considering faults and applicable factors. In addition, the maximum unprotected capacitance (Ci) and inductance (Li) of
each apparatus (other than the termination) connected to the fieldbus must be less than or equal to 5 nF and 10 µH respectively.
In each segment only one active device, normally the associated apparatus is allowed to provide the necessary energy for thefieldbus system.
The voltage Uo (or Voc or Vt) of the associated apparatus has to be limited to the range of 14V to 24V d.c. All other equipment
connected to the bus cable has to be passive, meaning that they are not allowed to provide energy to the system, except to aleakage current of 50 µA for each connected device.
Separately powered equipment needs a galvanic isolation to assure that the intrinsically safe fieldbus circuit remains passive.
The cable used to interconnect the devices has to meet the following values:
Loop resistance R´: 15 ... 150 W/km, inductance L´: 0.4 ... 1 mH/km capacitance C´: 80 ... 200 nF/km
C´ = C´ line/line + 0.5 C´ line/screen, if both lines are floating orC ´= C´ line/line + C´ line/screen, if the screen is connected to one line
Length of spur cable: 30 m
length of trunk cable: 1 km length of splice: 1 m
At each end of the trunk cable an approved infallible line termination with the following parameters is suitable:
R = 90 ... 100 W C = 0 ... 2.2 µF.
One of the allowed terminations might already be integrated in the associated apparatus.
The number of passive devices connected to the bus segment is not limited due to I.S. reasons. If the above rules are respected, up
to a total length of 1000 m (sum of the length of trunk cable and all spur cables), the inductance and capacitance of the cable will
not impair the intrinsic safety of the installation.

RID14 with electronic insert forProfibus PA/Foundation Fieldbus

T45

Nonhazardous Locations

Class I / Division 1, 2 / Groups ABCDClass I / Zone 0 / IIC
Class II / Division 1, 2 / Groups EFG
Class III-4321

Hazardous (Classified) Location

Endress + Hause rWetzer
Nesselwang / Germany

1 of 1 GmbH+Co. KG

54321