Yokogawa AC8 Calibration Units User Manual
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IM 11M06D03-01E-A
Zero Pressure Switch, M1133AR
The pressure switch is used to alert the Operator via a contact input that the zero gas cylinder needs to be re-
placed before the cylinder is empty. The recommended connection is to the high pressure side of the zero gas
regulator. Refer to Figure 4.1.
Zero Pressure Switch, M1133AR
Adjustable Set Point Ranges:
30 to 575 psi on fall; 50 to 600 psi on rise.
Dead Band:
8 to 60 psi
Over Range:
2,500 psi
Proof Pressure:
3,000 psi
Storage Temperature:
-40ºF to 180ºF (-40 ºC to 82 ºC)
Ambient Temperature:
0 ºF to 160 ºF (-18 ºC to 71 ºC)
Set Point Repeatability:
1% of span
Switch Output:
One SPDT (either NC or NO)
Electrical Rating:
Rated to 5 amps resistive and 15 amps inductive (75% PF),
at 125 and 120 VAC, ¼” HP
Enclosure:
Aluminum with irradiate finish rated for 100 hours of salt
spray
Electrical Connection:
One SPDT output; ½” NPTF, 5ft cable
Pressure Connection:
1/8” NPTM
Mounting:
NPTM pressure connection
Weight:
12oz (340g)
Approvals:
UL 508 listed, E42272; CSA C22.2, No 14-1987: LR 9690