- Supports multiple pressure types (gauge, absolute, differential, compound) with ranges up to 2500 bar and accuracy options from 0.2% to 0.01%.
- Built with the same sensing technology adopted by UK brand “Ashford Instrumentation”.
- Features a backlit LCD with six-digit, and data logging for up to 1600 records.
Magnetic Snap-Action Electric Contact Pressure Gauge
Model: PRE4.H
- Stainless steel bezel and instrument glass for durability and clear readability
- Multiple switch contact configurations available
- Suitable for chemical processing, oil and gas, steel, and machinery applications
- Specifications comparable to WIKA PGS23
- Responsive after-sales service / Customizable
- High quality / One-year warranty
- Product images are for reference only. Final specifications are based on the confirmed order.
Description
The PRE4.H is a magnetic snap-action electric contact pressure gauge for industrial alarm and interlock control. Its stainless steel bezel and instrument glass provide durability and clear visibility. When the measured pressure reaches a preset limit, the integrated switch contact opens or closes the control circuit to trigger an alarm or interlock.
Available with multiple contact configurations, the gauge is suitable for chemical processing, oil and gas, steel production, machinery, and other industrial applications. The magnetic snap-action mechanism provides stable switching with reduced contact arcing, supporting reliable operation in vibrating environments. Specifications are comparable to the WIKA PGS23 series.
Specifications
| Mounting configuration | Bottom mount, back mount with flange Back mount without flange |
|---|---|
| Electrical connection | Cable terminal box |
| Nominal size | 4", 6" |
| Scale ranges | -76 cmHg to 1000 kgf/cm² or equivalent ranges for pressure, vacuum, or compound pressure |
| Accuracy | CL 1.6 |
| Process connection | 316 SS 1/4, 3/8, 1/2 PT, G, NPT, M |
| Case / bezel | 304 SS |
| Window | Flat instrument glass |
| Pointer | Aluminum alloy, black |
| Bourdon tube | 316 SS |
| Case filling | Unfilled or silicone-oil filled |
| Movement | 304 SS |
| Ambient temperature | -20°C ... 70°C |
| Process medium temperature | ≤200°C (unfilled) ≤100°C (silicone-oil filled) |
| Switch contact | EC1 snap-action contact; 70% silver and 30% nickel; gold-plated |
| Switch contact specifications | Maximum operating voltage: 380 V Maximum switching capacity: 30 W / 50 VA Maximum make current: 1.0 A Maximum break current: 1.0 A Continuous current: 0.6 A |
| Ingress protection | IP65 |
| Adjustment lock | With or without removable adjustment key |
Product Images
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