UE H121K-456 H122K-456 ex-proof differential pressure switch

UE H121K-456 H122K-456 ex-proof differential pressure switch 

UE H121K-456 H122K-456 Features
• Approvals include cULus, ATEX & SAA; compliance with CE and NACE standards
• Internal adjustment or external adjustment via calibrated dials with tamper resistant cover
• Single or Dual Output
• Wide variety of sensor materials
• Optional Hastelloy®, Monel® and Tantalum sensor material for corrosive media
• Flush mount sanitary sensors
• Stainless steel, Hastelloy®, Monel® flanges conforming to ANSI standards
• Indicating Differential Pressure Module
• Most models available for immediate delivery!

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