Product Overview
3000MR-250PA is a series 3000MR Photohelic® switch/gauge which combines the functions of a precise, highly repeatable differential pressure switch with a large easy-to-read analogue pressure gauge employing the durable, time-proven Magnehelic® gauge design. The switch setting is easy to adjust with large external knobs on the gauge face. gauge reading is unaffected by switch operation - will indicate accurately even if power is interrupted. 3000MR is employ versatile electromechanical relays with gold over silver contacts - ideal for dry circuits. Typical applications include pneumatic conveying, air conditioning systems and clean rooms.
- Pressure range from 0-250Pascals
- Gauge reading unaffected by switch operation, will continue to read pressure even during power loss
- Zero and range adjustments outside of gauge means no disassembly in normal service
- Temperature limits from 20 to 120°F (-6.67 to 48.9°C) (gauge)
- Each set point has 1 form C relays (SPDT) switch type
- 24VDC, regulated 10% power requirements
- 18" cable assembly with 8 conductors. optional lengths to 100'
- Diaphragm in vertical position
- Adjustable knobs on face
Product details
| Thread Size - Metric |
- |
| Operating Temperature Min |
-6.67°C |
| Product Range |
Photohelic 3000MR Series |
| Operating Pressure Max |
250Pa |
| Operating Temperature Max |
48.9°C |
| SVHC |
No SVHC (04-Feb-2026) |
Other details
| Brand |
DWYER |
| Part Number |
3000MR-250PA |
| Quantity |
Each |
| Technical Data Sheet (1.80MB) EN |
View or download |
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