UE H121K-147 H122K-157 UE differential pressure switch

UE H121K-147 H122K-157 UE differential pressure switch

UE H121K-147 H122K-157 brief introduction:

As safety requirements become more stringent, the determining factor in specifying an industrial pressure, differential pressure and/or temperature switch rests upon that switch protecting equipment, processes and personnel. Meeting hazardous location requirements through adherence to UL, CSA, and ATEX standards, UE’s 120 Series is the choice where potentially explosive or highly corrosive atmospheres exist. The 120 Series offers a variety of pressure, differential pressure, vacuum and temperature ranges, as well as port connections, wetted materials and sensor types. With common, flexible “platforms”, models can quickly be adapted at the factory for special requirements, such as ranges, process connections and electrical ratings. Typical industries using 120 Series switches include chemical, petrochemical, refinery, oil and gas pipelines & production and pharmaceuticals. An innovator in the application of Threshold Detection and Switching™ technology since 1931, United Electric’s primary focus is the protection of equipment, processes and people.

WEIGHT	3-8 lbs. Varies with type and model
ELECTRICAL CONNECTION	Type H, B, E; one 3/4" NPT E/C; Type J, C, F, 820E, 822E; two 3/4" NPT E/C; terminal block standard
PRESSURE CONNECTION	Models S126B-S164B, 171-194, 483-494, 520-535: 1/2" NPT (female); models 560-564: 2" sanitary connection; models 565-567: 1 1 ⁄ 2" sanitary connection; models 540-548: 1/8" NPT (female); all others: 1/4" NPT (female)
TEMPERATURE ASSEMBLY	Bulb and capillary: 6 feet 304 stainless steel (standard) except for E121-13273 and E122-13321: 10 feet; Immersion stem: nickel-plated brass (standard) except for B121-13272 and B122-13322: stainless steel. Fill: Model 1BS: solvent filled; models 2BS-8BS: non-toxic oil filled
TEMPERATURE DEADBAND	Type F120, 820E, 822E: typically 1%; type B-, C-, and E- 121 and 122: typically 2% of range under laboratory conditions (70°F [21°C] ambient circulating bath at rate of 1/2°F per minute change)
PRESSURE DEADBAND	See Individual model charts
DIFFERENTIAL PRESSURE INDICATION (OPTION M210)	Differential pressure indication available types H121K and H122K with option M210; accuracy approximately 1% mid 50% of range, 3% at ends; window is plexiglass and gasketed; indicator may be field adjusted for approximately 1% accuracy at any set point within range
TEMPERATURE INDICATION	Temperature indication available types 820E and 822E. Indication accuracy is +1% of adjustable range