Extremely rugged construction provides excellent reliability in chemical, petroleum and industrial plants. Bellville spring movement permits mounting of control in any position and helps prevent contact chatter. New design also provides high over-pressure protections. Weather-proof housing is standard.
| Maximum Temperature: | 170°F (76°C) |
|---|---|
| Pressure Connection: | ¼" NPT female |
| Electrical Ratings: | 1/8 HP, 12A @ 125 VAC resistive; ¼ HP, 12A @ 250 VAC resistive; 0.5 @ 125 VCD resistive |
| Wiring Connections | Three 18" color coded leads: N.O., N.C. and Com |
| Setpoint Adjustment: | Internal thumbwheel with visible scale |
| Housing: | Die cast copper free aluminum - both weatherproof and explosion-proof |
| Diaphragm: | Polyimide, Teflon® or 316 stainless steel |
| Calibration Spring: | Plated Steel |
| Mounting: | 2 holes to accept 1/4" bolts |
| Weight: | 2 lbs. (.91 kg) |
| Installation: | Any position |
| Aluminum Pressure Chamber Polymide Diaph. Model Number |
316 Stainless Steel Pressure Chamber Teflon Diaphragm Model Number |
Adjustable Operating Range PSIG |
Approx.* Deadband (Fixed) PSIG |
Maximum Pressure |
|---|---|---|---|---|
| 1003E-A1-J 1004E-A1-J 1005E-A1-J 1006E-A1-J 1007E-A1-J 1008E-A1-J 1009E-A1-J |
1003E-B3-J 1004E-B3-J 1005E-B3-J 1006E-B3-J 1007E-B3-J 1008E-B3-J 1009E-B3-J |
7-40 10-70 25-200 50-350 75-550 100-900 200-1400 |
2.5 5 10 18 36 60 90 |
600 psig 3000 psig 3000 psig 3000 psig 3000 psig 3000 psig 3000 psig |
| *Deadband 10-15% larger when using 316SS diaphragm. Change A1 to B2 for 316 stainless steel diaphragm and pressure chamber e.g. 1003E-B2-J. Values shown are for mid-scale. |
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Suggested Specifications
Pressure switches shall be diaphragm operated with fully adjustable set point. Switch shall have visible set point indicator protected by clear polycarbonate window. Electrical terminals shall be isolated from set point adjustment. Units shall be Mercoid Model 100 (___) W-(___).