Model 522 (OEM)
(OEM)
Diaphragm Type
Differential Pressure Gauges & Switches
Model 522_OEM – Mid-West Instrument rolling diaphragm type gauge is a very competitively price gauge/switch. Model 522 Differential Pressure Gauge & Switch is a compact and weather resistant gauge for challenging DP Applications and installations. Specific configurations are suitable for use in outdoor and “Hose Down” applications. Available with our popular plug-in DIN connector switch option or Flat Pack, both in a SPDT and SPST electrical option. The model 522 is available with a Full Scale Accuracy of ±5% (0-5 PSID to 0-50 PSID)
NOTE: Reverse pressure should be avoided.
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Product Features/Benefits
- Simple Rolling Diaphragm Design
- Glass Reinforced Thermoplastic Dial case (Panel Mountable)
- Weather Resistant (Specific Configurations) & Corrosion Resistant
- Shatter Resistant Lens
- Over-Range Protection, High over Low to 200 PSID
- 1 Year Warranty
- For complete model details See Bulletin_522_OEM.pdf
Specifications / Configuration
- Dial Sizes available: 0.80” and 2-1/2” weatherproof
- Dial Scale Ranges: 0-5 PSID to 0-50 PSID (0-.35 bar to 0-3.5 bar)
- Differential Full Scale Ascending Accuracy ±5% (ASME B40.1 Grade D)
- Working Pressures up to 1000 PSIG (200 Bar)
- Operating Temp -40°F to +150°F (-40°C to +65.6°C)
- Weather Protection NEMA 4X (DIN Connector Option)
- Material of Construction of Body - Aluminum, 316/316L Stainless Steel, and Acetal (Wetted Part)
- Internal wetted parts-316 Stainless Steel, Ceramic Magnet and Acetal components
- ¼” FNPT End Connections only
- Elastomers (O-ring and Diaphragm Materials) Buna-N and Viton®.
Common Applications
- Filter Monitoring
- Strainer monitoring
- Monitoring, Compressed Air
- Hydraulic
- Refrigerant
- Pump Performance Testing
- Heat Exchanger Pressure Drop Monitoring
- Water Treatment Applications.
Switch Features:
- Switches are optional
- Hermetically Sealed Switch Outputs: 3 amps in SPST and 0.25 Amp in SPDT configuration.
- DIN Connector Switch Adjustable from 40%-95% (SPST) of Range & 25%-75% (SPDT) of Range
- Up to 240 VAC/VDC voltage ratings
- Available with Flat Pack case with Jacketed Flying Leads or with DIN IP65 / NEMA 4X Plug-in Connector.
- Optional Switch Set Feedback Decal
- Switch Location Top or Bottom
- CE Marking for Compliance with the Low Voltage & RoHS Directives is available upon request.Contact Factory for additional Customization
The Mid-West Advantage
- 1 year warranty
- 30 + Years Hazardous Location product manufacturer.
- OEM and Private Label Capabilities
- Fast on-time Deliveries
- Friendly Customer Support
- Certified Quality System CSA B51-09 SAI GLOBAL
Model 522 (OEM)Documents
OEM Indicators “Piston Type”
| Model No. | Differential Pressure Range | Accuracy | Working Pressure | Electrical Available | Specifications | Installation/ Operation Manual | Electrical IOM | Drawing |
|---|---|---|---|---|---|---|---|---|
| Model 126 | 0-5 PSID to 0-20 PSID | ±5% | 3,000 PSI | Available CE Marked to LVD & RoHS | N/A | N/A | ||
| Model 127 | 0-25 PSID to 0-100 PSID | ±5% | 3,000 PSI | Available CE Marked to LVD & RoHS Directives | N/A | N/A |
OEM Indicators “Diaphragm Type”
| Model No. | Differential Pressure Range | Accuracy | Working Pressure | Electrical Available | Specifications | Installation/ Operation Manual | Electrical IOM | Drawing |
|---|---|---|---|---|---|---|---|---|
| Model 146 | 0-3 PSID (0-50" H2O) to 0-30 PSID | ±5% | 1,000 PSI | Electrical Enclosures Weather-Resistant, NEMA 4X | N/A | N/A | ||
| Model 444 | 0-5 PSID to 0-30 PSID | ±5% | 300 PSI | None available | N/A | N/A | N/A | |
| Model 522 (OEM)OEM | 0-5 PSID to 0-50 PSID | ±5% | 1,000 PSI | Available CE Marked to LVD & RoHS Directives, SPST & SPDT Switches | N/A | N/A | N/A | N/A |
| Model 555 (OEM)Tri-Color | 0-3.5 PSID to 0-43 PSID | ±5% | 300 PSI | Not Available | N/A | N/A |
