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Single Pressure

Single Pressure
Dwyer has a wide offering of Gages, Transmitters, Switches, Data Loggers, and Monitors for Pressure, perfect for contractors, industrial and OEM applications.

Questions

Question
For which pressure switch applications are gold contacts recommended?
Answer
For "dry circuit" applications where little or no current is flowing in the circuit to help burn off contact dirt and oxidation. Switches used with solid state circuits often fall in this category.
Question
Can the standard H2 pressure switch be used with water?
Answer
No. The brass or SS housing must be specified for compatibility reasons. The aluminum housing can leak into the switch.
Question
A customer would like to get switching capability, local pressure indication, and a 4-20 mA output signal all in one device. Do we have a product to offer them?
Answer
Yes. The DH, DHII or DH3 possess high/low set points, digital gage display and 4-20 mA full scale output signal for air and compatible gas. The EDA, DPG-200, DPT and the MDPC possess high/low set points, digital gage display and 4-20 mA full scale output signal for compatible fluids.
Question
What is specified by the temperature coefficient and how is it important to my readings?
Answer
As the ambient temperature changes, the output current will drift slightly. The temperature coefficient specifies the amount of drift per °F/°C. Since the temperature affects the transmitter output, the temperature coefficient is important to accuracy of your reading.
Question
I need to protect a pressure transmitter from power surges and spikes. The model of the transmitter is: 626-09-GH-P1-E1-S1
Answer
If you are worried about power surges and spikes, we recommend that you use a regulated power supply in your system. See our Model BPS-005 low cost DC regulated power supply.