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DT301 – Manual de instrucciones, Operación y Mantenimiento
Certificaciones de las Áreas Clasificadas
A.2
- 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
Apparatus.
For Ex-d protection application
- Only use Explosion Proof/Flameproof certified Plugs, Adapters and Cable glands.
- As the instrument is non-ignition capable under normal conditions, the statement "Seal Not
Required" could be applied for Explosion Proof version regarding to electric conduits connection.
(CSA Approved)
- 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).
North American Certifications
FM Approvals (Factory Mutual)
Intrinsic Safety (FM 3009664)
IS Class I, Division 1, Groups A, B, C and D
IS Class II, Division 1, Groups E, F and G
IS Class III, Division 1
Explosion Proof (FM 3009664)
XP Class I, Division 1, Groups A, B, C and D
Dust Ignition Proof (FM 3009664)
DIP Class II, Division 1, Groups E, F and G
DIP Class III, Division 1
Non Incendive (FM 3009664)
NI Class I, Division 2, Groups A, B, C and D
Environmental Protection (FM 3009664)
Option: Type 4X/6 or Type 4/6
Special conditions for safe use:
Entity Parameters:
Vmax = 30 Vdc, Imax = 110 mA, Ci = 5 nF, Li = 12uH
Temperature Class: T4
Maximum Ambient Temperature: 60ºC (-20 to 60 ºC)
Overpressure Limits: 1015 psi (report 3011728)
and L
must be smaller than C
i
i
and L
of the Associated
o
o
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