PRESSURE MODEL J120, SINGLE SWITCH WITH INTERNAL ADJUSTMENT, DUAL CONDUITS (CONT'D)

Range/Material Code	Adjustable Set Point Range High end of range on rise, low end on fall		Deadband		*Over Range Pressure		**Proof Pressure
	psi Unless noted	bar	psi Unless noted	bar	psi	bar	psi	bar
Brass bellows with 1/4" NPT (female) nickel-plated brass pressure connection; Models 126 & 134 have zinc-plated steel spring exposed to media
126	30 to 3" Hg Vac	-1 to 0.1	0.2" to 0.6" Hg	0.01 to 0.02	80"wc	0.2	5	0.3
134	30" Hg Vac to 20 psi	-1 to 1.4	0.2" to 6" Hg	0.01 to 0.02	20	1.4	25	1.7
137	15 to 80"wc	0.04 to 0.19	2 to 6"wc	0.01 to 0.02	80"wc	0.2	5	0.3
144	0.5 to 20	0.04 to 1.4	0.1 to 0.3	0.01 to 0.02	20	1.4	25	1.7
152	1 to 50	0.07 to 3.4	0.1 to 0.5	0.01 to 0.03	50	3.4	75	5.2
156	2 to 100	0.14 to 6.9	0.2 to 0.6	0.01 to 0.04	100	6.9	125	8.6
164	4 to 200	0.3 to 13.8	0.2 to 1	0.01 to 0.01	200	13.8	200	13.8
Phosphor bronze bellows with 1/4" NPT (female) nickel-plated brass pressure connection
270	4 to 200	0.3 to 13.8	1 to 4	0.07 to 0.3	200	13.8	250	17.2
274	6 to 300	0.4 to 20.7	1 to 5	0.07 to 0.3	300	20.7	350	24.1
Welded 316L stainless steel bellows and 1/4" NPT (female) pressure connection
356	15 to 100	1.0 to 6.9	0.7 to 1.8	0.05 to 0.1	100	6.9	800	55.2
358	15 to 200	1.0 to 13.8	1 to 3	0.07 to 0.2	200	13.8	800	55.2
361	20 to 300	1.4 to 20.7	1 to 4	0.07 to 0.3	300	20.7	800	55.2
376	25 to 500	1.7 to 34.5	1.5 to 5	0.1 to 0.3	500	34.5	800	55.2
303 stainless steel piston and Buna-N O-Ring with 1/4" (female) pressure connection ( not recommended for gas service since drying of the O-Ring seal can allow bleeding of medium into the atmosphere)
612	125 to 3,000	8.6 to 206.8	40 to 250	2.8 to 17.2	6,000	413.7	10,000	689.5
616	700 to 5000	48.3 to 344.7	40 to 375	2.8 to 25.9	6,000	413.7	10,000	689.5
316 stainless steel bellows and 1/4" NPT (female) pressure connection (not recommended for rapid or high cycling pressure changes)
680	100 to 1700	6.9 to 117.2	9 to 40	0.6 to 2.8	1700	117.2	2500	172.4
Buna-N diaphragm and O-Ring with 1/4" NPT (female) nickel-plated brass pressure connection; Optional Viton® diaphragm & O-Ring available for code 704-705
701	1.5 to 30	0.1 to 2.1	1 to 2	0.07 to 0.14	500	34.5	1000	68.9
702	3 to 100	0.2 to 6.9	1 to 4	0.07 to 0.3	500	34.5	1000	68.9
703	9 to 300	0.6 to 20.7	1 to 5	0.07 to 0.3	500	34.5	1000	68.9
704	15 to 500	1.0 to 34.5	2 to 8	0.14 to 0.6	1500	103.4	2500	172.4
705	30 to 1000	2.1 to 68.9	3 to 20	0.21 to 1.4	1500	103.4	2500	172.4
Buna-N diaphragm and O-Ring with 1/4" NPT (female) aluminum pressure connection and cap
450	30" to 3" Hg Vac	-1.0 to -0.1	0.1 to 0.3"Hg	0.003 to 0.1	80"wc	0.2	225	15.5
451	2 to 80"wc	0.005 to 0.2	0.8 to 2"wc	0.002 to 0.005	80"wc	0.2	225	15.5
452	30" Hg Vac to 20 psi	-1 to 1.4	0.1 to 0.4" Hg	0.003 to 0.01	20	1.4	225	15.5
453	0.5 to 20	0.03 to 1.4	0.05 to 0.1	0.003 to 0.01	20	1.4	225	15.5
454	0.8 to 30	0.06 to 2.1	0.05 to 0.2	0.003 to 0.014	30	2.1	225	15.5
Teflon® diaphragm and O-Ring with 1/4" NPT (female) 316L stainless steel pressure connection and cap
550	30" to 3" Hg Vac	-1 to 0.1	0.1 to 0.4" Hg	0.003 to 0.01	80"wc	0.2	225	15.5
551	2 to 80"wc	0.005 to 0.2	1 to 4"wc	0.003 to 0.01	80"wc	0.2	225	15.5
552	30" Hg Vac to 20 psi	-1 to 1.4	0.2 to 0.5" Hg	0.007 to 0.02	20	1.4	225	15.5
553	0.5 to 20	0.03 to 1.4	0.1 to 0.2	0.007 to 0.014	20	1.4	225	15.5
554	0.8 to 30	0.06 to 2.1	0.1 to 0.3	0.007 to 0.02	30	2.1	225	15.5
555	2 to 100	0.14 to 6.9	0.2 to 0.4	0.014 to 0.03	100	6.9	225	15.5
*Over Range Pressure: The maximum pressure that may be applied continuously without causing damage and maintaining set point repeatability
** Proof Pressure: The maximum pressure to which a pressure sensor may be occasionally subjected, which causes no permanent damage. Unit may require calibration.

MODEL H121, SINGLE SWITCH WITH EXTERNAL ADJUSTMENT VIA REFERENCE DIAL, 1 CONDUIT MODEL H121, DUAL SWITCH WITH EXTERNAL ADJUSTMENT VIA REFERENCE DIAL, 1 CONDUIT MODEL H122P, TWO HERMETICALLY SEALED SINGLE SWITCHES, EXTERNAL REFERENCE DIAL ADJUSTMENT , 1 CONDUIT

Range/Material Code	Adjustable Set Point Range		Deadband		**Proof Pressure		Dial Divisions
	psi	bar	psi	bar	psi	bar	psi
Welded 316L stainless steel bellows with 1/2" NPT (female) pressure connection
S126B	30" Hg Vac to 0	-1 to 0	0.2 to 0.9" Hg	7 to 30.5 mbar	5	0.3	0.5" Hg
S134B	30" Hg Vac to 20	-1 to 1.4	0.2 to 1.2" Hg	7 to 40.6 mbar	25	1.7	1" Hg & 0.5 psi
S137B	2 to 80"wc	0.005 to 0.2	2 to 10"wc	5 to 20 mbar	5	0.3	2"wc
S144B	0 to 20	0 to 1.4	0.1 to 0.5	7 to 34.5 mbar	25	1.7	0.5
S146B	0 to 30	0 to 2.1	0.1 to 0.6	6.9 to 41.4 mbar	40	2.78	0.5
S156B	0 to 100	0 to 6.9	0.2 to 0.8	13.8 to 55.2 mbar	125	8.6	2
S164B	0 to 200	0 to 13.8	0.3 to 2	20.7 to 138 mbar	200	13.8	5
Brass bellows with 1/4" NPT (female) nickel-plated brass pressure connection; Models 126 & 134 have zinc-plated steel spring exposed to media
126	30" Hg Vac to 0	-1 to 0	0.2" to 0.9" Hg	7 to 30.5 mbar	5	0.3	0.5" Hg
134	30" Hg Vac to 20 psi	-1 to 1.4	0.2" to 1.2" Hg	7 to 40.6 mbar	25	1.7	1" Hg & 0.5 psi
137	2 to 80"wc	0.005 to 0.2	2 to 10"wc	5 to 20 mbar	5	0.3	2"wc
144	0 to 20	0 to 1.4	0.1 to 0.5	6.9 to 34.5 mbar	25	1.7	0.5
146	0 to 30	0 to 2.1	0.1 to 0.6	6.9 to 41.4 mbar	40	2.8	0.5
156	0 to 100	0 to 6.9	0.2 to 0.8	13.8 to 55.2 mbar	125	8.6	2
164	0 to 200	0 to 13.8	0.3 to 2.0	20.7 to 138 mbar	200	13.8	5
Welded 316L stainless steel bellows and 1/4" NPT (female) pressure connection
358	0 to 200	0 to 13.8	1.5 to 8	0.1 to 0.6	250	17.2	5
361	0 to 300	0 to 20.7	2 to 9	0.1 to 0.6	350	24.1	10
376	0 to 500	0 to 34.5	3 to 12	0.2 to 0.8	575	39.6	10
303 stainless steel piston and Buna-N O-Ring with 1/4" (female) pressure connection ( not recommended for gas service since drying of the O-Ring seal can allow bleeding of medium into the atmosphere
612	200 to 3000	13.8 to 207	40 to 250	2.8 to 17.2	10000	689.5	50
614	500 to 6000	34.5 to 413.7	50 to 400	3.4 to 27.6	10000	689.5	100
** Proof Pressure: The maximum pressure to which a pressure sensor may be occasionally subjected, which causes no permanent damage. Unit may require calibration.

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