Dwyer 1800 Low Differential Pressure Switch for General Industrial Service
Differential pressure switches for general industrial service. Single SPDT switch output, internal adjustment. UL and CSA listed, and FM approved. Weatherproof, explosion-proof, MIL environmental housing options.
Series 1800 low differential pressure general purpose industrial switches for air and non-combustible gases. This compact, low cost switch offers 2% repeatability for a range of process and mechanical equipment control applications. Setpoint adjustment inside the mounting stud lets you mount the switch on one side of a wall or panel with adjustment easily accessible on the opposite side.
- Pressure ranges from 0.07" to 85.0" W.C.
- 1/8" FNPT process connection
- Internal screw setpoint adjustment
- Repeatability ±2%
- Three screw type electrial connections: common, normally open, normally closed
- Optional weatherproof, explosion-proof, and MIL environmental housing
- UL and CSA listed, and FM approved
Model Selection Guide
Use this table to find the right model for your application. Don't see the option you need? Call a Lesman sales specialist at 800-953-7626.
| Operating Pressure Range | Approximate Deadband | Click for Price
and Availability | |
|---|---|---|---|
| at Min Setpoint | at Max Setpoint | ||
| 0.07" to 0.22" WC | 0.05 | 0.05 | 1823-00 |
| 0.15" to 0.5" WC | 0.06 | 0.06 | 1823-0 |
| 0.3" to 1.0" WC | 0.08 | 0.08 | 1823-1 |
| 0.5" to 2.0" WC | 0.10 | 0.12 | 1823-2 |
| 1.5" to 5.0" WC | 0.14 | 0.28 | 1823-5 |
| 2.0" to 10" WC | 0.18 | 0.45 | 1823-10 |
| 3" to 22" WC | 0.35 | 0.70 | 1823-20 |
| 5" to 44" WC | 0.56 | 1.10 | 1823-40 |
| 9" to 85" WC | 1.30 | 3.0 | 1823-80 |
| 4" 303SS Straight Static Pressure Tip with Flange | A-489 | ||
| 4" 303SS Static Pressure Tip with Mounting Flange | A-302F-A | ||
| Measured Variable | Differential Pressure |
|---|---|
| Enclosure/Construction | NEMA 4, Div 1 Hazardous, Div 2 Hazardous |
| Switch Output | SPDT |
| Sensor Type | Diaphragm |
| Adjustment | Screwdriver Adjustment |
| Measuring Range | 0.07" to 85.00" W.C. |