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 1 1 Pressure Range Code Insert Pressure Range Code from Table 1, below. 2 Pressure Fitting1 -2MNB = 1/8˝ NPTM Brass -4MNB = 1/4˝ NPTM Brass -4MGB = 1/4˝ BSPM Brass (G type) -4MSB = 7/16˝-20 SAE Male, Brass 3 Circuit -A = SPST/N.O. -B = SPST/N.C. -C = SPDT 4 Electrical Termination -FLXX = Flying Leads2 -ELXX = 1/2˝ NPT Male Conduit w/Flying Leads3 -H = DIN 43650A Male Half Only4 -HC = DIN 43650A 9mm Cable Clamp4 -HN = DIN 43650A with 1/2˝ Female NPT Conduit4 2 3 4 5 6 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) -OF = Oil Free Cleaned 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. Other fittings available. Consult factory. 2. 18˝ is standard. Specify lead length in inches (max. 48˝). e.g. -FL18 or -FL30. 3. 18˝ is standard. Specify lead length in inches (max. 48˝). e.g. -EL18 or -EL30. 4. DIN connectors require -C SPDT circuit. 5. Set Point must be within Pressure Range selected in Step 1. Table 1 - Pressure Range Codes Pressure Range Code Pressure Range Accuracy* 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 PRESSURE SWITCHES * Accuracy 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. PS81 Series / p2of2 / 07-MAY-14 Visit www.GemsSensors.com for most current information. I-32http://ecatalog.gemssensors.com/ecatalog/pressure-switches/en/gemslink/1=PS81 http://ecatalog.gemssensors.com/ecatalog/pressure-switches/en/gemslink/1=PS81 http://www.GemsSensors.com