Pressure Switch - GEMS SENSORS & CONTROLS - #17

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VACUUM SWITCHES
How To Order
Use the Bold characters from the chart below to construct a product code. Please reference Notes.
PS81 -10 -4MNB -C -H -XX -XXXX
12 3
4
5
1 Pressure Range Code
Insert Pressure Range Code from Table 1, below.
2 Pressure Fitting
-2MNB = 1/8" NPTM Brass -4MNB = 1/4" NPTM Brass -2FNB=1/8" NPTF Brass -4MGB = 1/4" BSPM Brass (G type) -4MSB=7/16"-20 SAE Male, Brass -6MSB=9/16"-18 SAE Male, Brass
3 Circuit
-A=SPST/N.O. -B = SPST/N.C. -C = SPDT
4 Electrical Termination
-FLXX=Flying Leads1
-ELXX=1/2" NPT Male Conduit w/Flying Leads2 -H = DIN 43650A Male Half Only3 -HC=DIN 43650A 9mm Cable Clamp3 -HN = DIN 43650A with 1/2" Female NPT Conduit3
5 Options
-V=Viton® Diaphragm
-E=EPDM Diaphragm
-K = Kapton® Diaphragm (Nitrile O-ring)
-G = Gold Contacts
(for loads less than 12 mA @ 12 VDC) -OXY=Oxygen Cleaned -IP = Ingress Protection4
6 Fixed Set Point (optional)
A. Specify set point -FS
(in Inches Hg or mBAR, see example)5
B. Set Point Actuation R on Rising Vacuum F on Falling Vacuum
Example: -FS100MBARF for 100 mBAR Falling or -FS2INHGR for 2" Hg Rising
Notes:
1.
18" is standard. Specify lead length in inches (max. 48"). e.g. -FL18 or -FL30. 18" is standard. Specify lead length in inches (max. 48"). e.g. -EL18 or -EL30. DIN connectors require -C SPDT circuit. Ingress Protection is available only with -FL or -EL Electrical Termination and requires Fixed Set Point -FS. Set Point must be within Pressure Range selected in Step 1.
2.
3.
4.
5.
Table 1 — Pressure Range Codes
Pressure Range Code
Pressure Range
Repeatability*
Average Deadband**
10
1.5-5" Hg (51-169 mbar)
±0.2" Hg (7 mbar) +3% of setting
0.3" Hg (10 mbar) +9% of setting
20
4-15" Hg (136-508 mbar)
±0.35" Hg (12 mbar) +4% of setting
0.6" Hg (20 mbar) +11% of setting
' Repeatability and set point of units may change due to the effects of temperature.
' In certain applications deadband can be tailored and controlled to customer specifications. Consult factory for details.
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pageCatalog pdf di En 2012-02-07-13