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Intrinsic Safety Barriers Suitable For Use With Delta Controls Model 872

Delta Controls pressure transmitters are intrinsically safe when used with suitable safety barriers. Barriers are suitable if the entity parameters are selected so that:

13v < Vmax < 35v     20mA < Imax < 200mA         Ca > .05uF+Ccable        La > Lcable+220uH

In addition, the internal resistance must be selected so that at 20mA, the voltage dropped across the load resistance plus the internal resistance must be less than (Vsupply-13v)

The following are some of the safety barriers that are suitable for use with Delta Controls Model 872

MANUFACTURER: STAHL
PART NUMBER RATED VOLTAGE INTERNAL RESISTANCE ALLOWABLE LOAD RESISTANCE AT RATED VOLTAGE I.S. CONNECTION FOR CL I,II,III, GROUPS:
9001/01-199-150-10 16 160 10 A-G
9001/01-280-075-10 24 440 110 A-G
9001/01-280-085-10 24 356 194 A-G
9001/01-280-100-10 24 302 248 A-G
9001/01-280-110-10 24 277 273 A-G
9001/01-199-165-10 24 187 363 C-G
MANUFACTURER: CROUSE-HINDS
PART NUMBER RATED VOLTAGE INTERNAL RESISTANCE ALLOWABLE LOAD RESISTANCE AT RATED VOLTAGE I.S. CONNECTION FOR CL I,II,III, GROUPS:
SB19130 M 1801 18 230 20 A-G
SB19130 M 2401 24 440 110 A-G
SB19130 M 2402 24 535 15 A-G
MANUFACTURER: ADALET
PART NUMBER RATED VOLTAGE INTERNAL RESISTANCE ALLOWABLE LOAD RESISTANCE AT RATED VOLTAGE I.S. CONNECTION FOR CL I,II,III, GROUPS:
Z 125/Ex 22 202 133 A-G
Z 129/Ex 28 367 258 A-G
Z 123/Ex-CL 20 178+2V 72 A-G
Delta Controls Corporation

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