SMAR IF302, Operation, Maintenance & Instruction Manual

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- Check the intrinsically safe parameters involving the barrier, equipment including the cable and
connections.
- Associated apparatus ground bus shall be insulated from panels and mounting enclosures.
- When using shielded cable, isolate the not grounded cable end.
- Cable capacitance and inductance plus C
i
and L
i
must be smaller than C
o
and L
o
of the Associated
Apparatus.
For Ex-d protection application
- Only use Explosion Proof/Flameproof certified Plugs, Adapters and Cable glands.
- In an Explosion-Proof/Flame-Proof installation, do not remove the instrument housing covers when
powered on.
- Electrical Connection
In Explosion-Proof installations the cable entries must be connected through conduit with sealed
unit or closed using metal cable gland or closed using metal blanking plug, all with at least IP66
and Ex-d certification. For enclosure with saline environment protection (W) and ingress protection
(IP) applications, all NPT thread parts must apply a proper water-proof sealant (a non-hardening
silicone group sealant is recommended).
For Ex-d and Ex-i protection application
- The transmitter has a double protection. In this case the transmitter shall be fitted with appropriate
certified cable entries Ex-d and the electric circuit supplied by a certified diode safety barrier as
specified for the protection Ex-ia.
Environmental Protection
- Enclosure Types (Type X): Supplementary letter X meaning special condition defined as default by
Smar the following: Saline Environment approved - salt spray exposed for 200 hours at 35ºC. (Ref:
NEMA 250).
- Ingress protection (IP W): Supplementary letter W meaning special condition defined as default by
Smar the following: Saline Environment approved - salt spray exposed for 200 hours at 35ºC. (Ref:
IEC60529).
- Ingress protection (IP x8): Second numeral meaning continuous immersion in water under special
condition defined as default by Smar the following: 1 Bar pressure during 24hours. (Ref: IEC60529).
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CSA (Canadian Standards Association)
Class 2258 02 – Process Control Equipment – For Hazardous Locations
(CSA1002882)
Class I, Division 1, Groups B, C and D
Class II, Division 1, Groups E, F and G
Class III, Division 1
Class I, Division 2, Groups A, B, C and D
Class II, Division 2, Groups E, F and G
Class III
CLASS 2258 03 - PROCESS CONTROL EQUIPMENT – Intrinsically Safe and Non-Incendive Systems - For Hazardous
Locations
(CSA 1002882)
Class I, Division 2, Groups A, B, C and D
Model IF302 Converter; supply 12-42V dc, 4-20mA; Enclosure Type 4/4X; non-incendive with Fieldbus/FNICO Entity
parameters
@ Ter and - :
Vmax =24V, Imax =570 mA, Pmax = 9.98 W, Ci = 5 nF, Li = 12uH;
@ Terminals 1 - 4:
Vmax =30V, Imax =110mA, Ci = 5 nF, Li = 12uH;
when connected through CSA Certified Safety Barriers as per SMAR Installation drawing 102A0558; Temp. Code T3C.
Class 2258 04 – Process Control Equipment – Intrinsically Safe Entity – For Hazardous Locations (CSA 1002882)
Class I, Division 1, Groups A, B, C and D
Class II, Division 1, Groups E, F and G
Class III, Division 1
FISCO Field Device
Model IF302 Converter; supply 12-42V dc, 4-20mA; Enclosure Type 4/4X; Intrinsically safe with Fieldbus/FISCO Entity
parameters