400 Series, Pressure, Vacuum, Diff. Pressure & Temp. Switches

Clark Solutions
400 Series, Pressure, Vacuum, Diff. Pressure & Temp. Switches
1, 2 & 3 Switch output, Adjustable Ranges 30” Vac to 6000 PSI, -180 to 650°F

(Page 3 of 5)

Page

PRESSURE MODEL J400, J402, J403 HEX SCREW ADJUSTMENT VERSIONS
Range/Material Code	Adjustable Set Point Range High end of range on rise, low end on fall		Deadband (x2 for 2 & 3 switch types)		*Over Range Pressure		**Proof Pressure
Range/Material Code	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" Hg Vac to 0	-1 to 0	0.2" to 0.9" Hg	7 to 30.5 mbar	0	0	30" Hg	-1
134	30" Hg Vac to 20 psi	-1 to 1.4	0.2" to 1.2" Hg	7 to 40.6 mbar	20	1.4	25	1.7
137	0 to 80"wc	0 to 200 mbar	2 to 6"wc	5 to 15 mbar	80"wc	200 mbar	5	0.3
144	0 to 20	0 to 1.4	0.1 to 0.5	6.9 to 34.5 mbar	20	1.4	25	1.8
146	0 to 30	0 to 2.1	0.1 to 0.6	6.9 to 41.4 mbar	30	2	40	2.8
156	0 to 100	0 to 6.9	0.2 to 0.8	13.8 to 55.2 mbar	100	6.9	125	8.6
164	0 to200	0 to 13.8	0.3 to 2.0	20.7 to 138 mbar	200	13.8	200	13.8
Phosphor bronze bellows with 1/4" NPT (female) nickel-plated brass pressure connection
270	0 to 200	0 to 13.8	1.5 to 8	0.1 to 19.9	200	13.8	250	17.2
274	0 to 300	0 to 20.7	2 to 10	0.1 to 24.9	300	20.7	350	24.1
Buna-N diaphragm and O-Ring with 1/4" NPT (female) aluminum pressure connection and cap
440†	0 to 2"wc	0 to 5 mbar	0.07 to 0.25"wc	0.2 to 0.6 mbar	3	0.2	225	15.5
441†	0 to 10"wc	0 to 25 mbar	0.15 to 0.3"wc	0.4 to 0.7 mbar	3	0.2	225	15.5
442†	0 to 20"wc	0 to 50 mbar	0.2 to 0.5"wc	0.5 to 1.2 mbar	3	0.2	225	15.5
443†	0 to 80"wc	0 to 200 mbar	0.5 to 1.8"wc	1.2 to 4.5 mbar	3	0.2	225	15.5
448	80 to 0"wc Vac	-200 to 0 mbar	1 to 3"wc	2.5 to 7.5 mbar	3	0.2	225	15.5
449	0 to 20"wc	0 to 50 mbar	1 to 2"wc	2.5 to 5.0 mbar	3	0.2	225	15.5
450	30" Hg Vat to 0	-1 to 0 mbar	0.1 to 0.4"wc	3.4 to 13.5 mbar	3	0.2	225	15.5
451	0 to 80"wc	0 to 200 mbar	1 to 3"wc	2.5 to 7.5 mbar	3	0.2	225	15.5
452	30" Hg Vav to 20 psi	-1 to 1.4 mbar	0.2 to 1" Hg	6.8 to 33.9 mbar	20	1.4	225	15.5
453	0 to 20	0 to 1.4 mbar	0.05 to 0.2	3.4 to 13.8 mbar	20	1.4	225	15.5
454	0 to 30	0 to 2.1 mbar	0.05 to 0.3	3.4 to 20.7 mbar	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" Hg Vac to 0	-1 to 0	0.1 to 0.6" Hg	3.4 to 20.3	0	0	225	15.5
551	0 to 80"wc	0 to 200 mbar	1.5 to 3.5"wc	3.7 to 8.7	80"wc	200 mbar	225	15.5
552	30" Hg Vac to 20 psi	-1 to 1.4	0.2 to 1" Hg	6.8 to 33.9	20	1.4	225	15.5
553	0 to 20	0 to 1.4	0/05 to 0.3	3.4 to 20.7	20	1.4	225	15.5
554	0 to 30	0 to 2.1	0.1 to 0.4	6.9 to 27.6	30	2.1	225	15.5
555	0 to 100	0 to 6.9	0.25 to 0.75	17.2 to 51.7	100	6.9	225	15.5
*Over Range Pressure: The maximum pressure that may be applied continuously without causing damage and maintaining setpoint repeatability.
**Proof Pressure: The maximum pressure to which a pressure sensor may be occasionally subjected, which causes no permanent damage. The unit may require calibration (e.g., start-up, testing).
† no switch options available for these models

DIFFERENTIAL PRESSURE MODEL J400K, J402K HEX SCREW ADJUSTMENT VERSIONS
Range/Material Code	Adjustable Set Point Range High end of range on rise, low end on fall		Deadband (x2 for 2 & 3 switch types)		***Working Pressure		**Proof Pressure
Range/Material Code	"wcd/psid	mbar/bar	"wc/psi	mbar/bar	psi	bar	psi	bar
Welded 316L bellows with 1/2" NPT (female) pressure connections
S147B	3 TO 30 psid	0.2 TO 2.1 bar	0.5 TO 2 psi	34.5 to 138 mbar	30" Hg Vac to 100	-1 to 6.9	300	20.7
S157B	10 TO 100 psid	0.7 TO 6.9 bar	0.5 TO 3 psi	34.5 to 207 mbar	30" Hg Vac to 180	-1 to 12.4	300	20.7
Brass bellows with 1/4" NPT (female) nickel-plated brass pressure connections
147	3 to 30 psid	0.2 to 2.1 bar	0.5 to 2 psi	34.5 to 138 mbar	30" Hg Vac to 100	-1 to 6.9	180	12.4
157	10 to 100 psid	0.7 to 6.9 bar	0.5 to 3 psi	34.5 to 207 mbar	30" Hg Vac to 150	-1 to 10.3	180	12.4
Buna-N diaphragm and O-Ring with 1/4" NPT (female) aluminum pressure connections
455	5 to 80 "wcd	12 to 100 mbar	1 to 4"wcd	2.5 to 10 mbar	30" Hg Vac to 225	-1 to 15.5	225	15.5
456	2 to 20 psid	0.1 to 1.4 bar	0.1 to 0.3 psi	6.9 to 20.7 mbar	30" Hg Vac to 225	-1 to 15.5	225	15.5
457	3 to 30 psid	0.2 to 2.1 bar	0.1 to 0.4 psi	6.9 to 27.6 mbar	30" Hg Vac to 225	-1 to 15.5	225	15.5
Kapton^® diaphragm, Buna-N sealing diaphragms and epoxy coated aluminum 1/8" NPT (female) pressure connections
540	1 to 7"wcd	2.5 to 17.4 mbar	0.1 to 0.5"wc	0.2 to 1.2 mbar	200	13.8	400	27.6
541	2 to 20"wcd	5 to 49.8 mbar	0.5 to 5.0"wc	1.2 to 5 mbar	200	13.8	400	27.6
542	5 to 50"wcd	12.4 to 124.4 mbar	0.5 to 2.5"wc	1.2 to 12.4 bar	200	13.8	400	27.6
543	15 to 100"wcd	37.3 to 249 mbar	0.5 to 7"wc	1.2 to 17.4 mbar	200	13.8	400	27.6
544	2 to 20 psid	0.1 to 1.4 bar	1 to 2.5 psi	0.1 to 0.2 bar	1200	82.7	2500	172.4
545	5 to 50 psid	0.3 to 3.4 bar	1 to 3 psi	0.1 to 0.2 bar	1200	82.7	2500	172.4
546	10 to 100 psid	0.7 to 6.9 bar	1 to 5.0 psi	0.1 to 0.3 bar	1200	82.7	2500	172.4
547	20 to 200 psid	1.4 to 13.8 bar	1 to 7 psi	0.1 to 0.5 bar	1200	82.7	2500	172.4
Teflon^® and Buna-N diaphragms, Buna-N O-Ring with 1/4" (female) aluminum pressure connections
559	10 to 100 psid	0.7 to 6.9 bar	0.2 to 1 psi	14 to 69 mbar	30" Hg Vac to 225	-1 to 15.5	225	15.5
DIFFERENTIAL PRESSURE MODEL H400K, H402K DIAL ADJUSTMENT VERSIONS
Buna-N diaphragm and O-Ring with 1/4" NPT (female) aluminum pressure connections
455	5 to 80"wcd	12 to 200 mbar	1 to 4"wc	2 to 10 mbar	30" Hg Vac to 225	-1 to 15.5	225	15.5
456	2 to 20 psid	0.1 to 1.4 bar	0.1 to 0.3 psi	7 to 21 mbar	30" Hg Vac to 225	-1 to 15.5	225	15.5
457	3 to 30 psid	0.2 to 2.1 bar	0.1 to 0.4 psi	7 to 28 mbar	30" Hg Vac to 225	-1 to 15.5	225	15.5
Teflon^® and Buna-N diaphragms, Buna-N O-Ring with 1/4" NPT (female) aluminum pressure connections
559	10 to 100 psid	0.7 to 6.9 bar	0.2 to 1 bar	14 to 69 bar	30" Hg Vac to 225	-1 to 15.5	225	15.5
**Proof Pressure: The maximum pressure to which a pressure sensor may be occasionally subjected, which causes no permanent damage. The unit may require calibration (e.g., start-up, testing).
***Working Pressure Range: The pressure range within which two opposing sensors can be safely operated and still maintain set point adjustability provided the difference in pressure between them does not exceed the designated adjustable range.

Page

For assistance call 978-568-3400