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Model 121 Piston Type Differential Pressure Gauge & Switch
Brand: Mid-West Instrument
Piston-Type Differential Pressure Gauges are available with one or two hermetically sealed reed switches.
The switches are adjustable within a defined percentage of the full scale range of the gauge and are available in SPDT and SPST, normally open or normally closed configurations for various load/power ratings.
The switches can be set to activate or deactivate on rising or falling pressure.
Switches are "CE" marked per the EU low voltage directive.
Models 121 can be configured for use in Hazardous Locations.
Features- 1/2 NPT conduit connection.
- Ranges from 0-5 psid to 0-100 psid.
- Accuracy ±2%.
- 1 or 2 magnetically actuated hermetically sealed reed switches.
- Weather-resistant construction standard.
- Working pressure up to 6,000 psiG (400 bar).
- Aluminum or 316L Stainless Steel body material.
- Shatter resistant acrylic lens.
Specifications
Brand
Accuracy
- ± 3 / 2 / 3 %
Approvals & Certifications
- CE
- CRN
- CSA
- UL
Diaphragm Material
- Buna-N
- Ethylene Propylene (EPR)
- Neoprene
- Perfluoroelastomer
- Teflon
- Viton
Enclosure, Body Material
- 316L Stainless Steel
- Aluminum
Environmental Protection
- IP65
- IP66
- NEMA 4X
NACE & NIST
- NACE
NPT Connection
- 1/2” NPT Female
- 1/4” NPT Female
Pressure Type
- Differential
SAE Connection
- 7/16”-24 SAE Female
Set Point - Decreasing
- bar: 0 to 7
- kPa: 0 to 700
- psi: 0 to 100
Set Point - Increasing
- bar: 0 to 7
- kPa: 0 to 700
- psi: 0 to 100
Switch Type
- SPDT 3 W, 125 Vac/dc, 0.25 A (Switch Adjustable Range of 15-95 %)
- SPST 60 W, 240 Vac/dc, 3 A (1) Normally Open, (1) Normally Closed (Switch Adjustable Range of 20-95 %)
System Pressure
- bar: 400
- kPa: 40,000
- psig: 6,000