Mechanical Gauges (Pressure)
OPL Series
- Combination Indicating Gage and Critical Pressure Limit Switches
- High and Low Pressure Limit Contacts Are Visible and Adjustable
- Panel and Surface Mount Versions
- Indicating-only Murphygage® Available
- Latching Control Relay Versions Available
OVERVIEW:
The OPL-series pressure Swichgage instruments are combination pressure indicating gages with adjustable low and high limit switches. Limit switches can be wired directly to electric pilot circuits to operate alarms, shutdown or the start/stop of engines and electric motors. Surface mount or panel mount enclosure is available for most versions. All versions feature a 4-1/2 in. (114 mm) dial for easy viewing. Adjustable limit switches are accessible from the front of the Swichgage instrument. Limit contacts have self-cleaning motion to enhance electrical continuity.
Other versions available (details on next page):
- Gage only without contacts (Murphygage instrument);
- Swichgage instrument with built-in latching relay for start-stop operations.
Specifications
Case: Die cast aluminum; weatherproof.
Contacts: See Electrical page 3, for contact ratings.
Dial: 4-1/2 in. (114 mm) white on black, dual scaled psi /kPa. Other dial configurations available. Consult factory.
Gage Accuracy: ±2% for the first and last quarters of the scale, the middle half is ±1%.
Geared Movement: 302 and 304 stainless steel.
Lens: Optically clear polycarbonate.
Pointer: High visibility with a pointer calibration hub.
Process Connection: Available in 1/4 NPT and 1/2 NPT. See Table B, page 5.
Sensing Element: Select from bronze or 316 stainless steel bourdon tube.
OPLC, OPLCE and OPLG Dimensions
OPLFC and OPLFG Dimensions
OPLBP and OBLBPE Dimensions
Electrical – OPLC and OPLCE
Electrical – OPLFC
Electrical – OPLBP and OPLBPE
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