 Eldridge Products, Inc. (EPI) Series 7000, 7100, and 7200 Flow Switches are rugged flow switches for gases. Our flow switches are built with the same components as our flowmeters and operate on the same prinicpals of thermal dispersion. They include two High/Low relays for High/High, Low/Low, and Low/High switch options. One second to thirty seconds time delay is a available as a standard, with automatic reset in one second upon resumption of non-fault flow conditions. Two LEDs provide verification that an alarm has been triggered. The flow switches are calibrated for your process conditions and the relay trip points can be easily set up in the field. Factory calibrated trip points are also available, at an additional charge.
Flow switches for non-hazardous locations are also available.
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General Specifications
| Switch contact closure |
5 amp at 5 VDC & 115VAC |
| Trip point accuracy |
± 1% of set point |
| Trip delay range |
1 – 30 seconds, adjustable |
| Trip reset |
1 second |
| Repeatability |
0.5% of Full Scale |
| Sensor response time |
1 second |
| Range (gas) |
0 – 15,000 SFPM, typical |
| Electronic temperature range |
32° to 122°F (0° to 50° C) |
| Fluid temperature range* |
-40° to 150°F (-40° to 65°C) |
| Pressure rating, maximum |
500 PSI Std., > 500 PSI, special |
| Transmitter power requirements |
.8 to 5 watts |
| Input power requirement |
24 VDC @ 250 mA max.
115 VAC 50/60 Hz optional
230 VAC 50/50 Hz optional |
| Flow Transmitter power requirements |
5 Watts maximum |
| Flow Transmitter enclosure |
Series 7000 – 7200, Aluminum enclosure
NEMA 4X
Series 7000NH – 7200NH
NEMA 4X, 5" x 5" x 4" ABS plastic with polycarbonate cover,
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| Wetted materials |
All 316 SS (ceramic, glass, & epoxy optional) |
* Options required for 100°–200°C (212° – 392°F)
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