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Digital Panel Meters FAQ

Digital Panel Meters

Digital Panel Meters

Q Why does my process monitor's display reading stay fixed at '000' as the 4-20mA signal is varied?
Q How do I hook up a +24V supply to a loop-powered DMS-20LCD-4/20S?
Q What do the 'S', 'B', 'P' and 'I' 4/20 suffixes in DATEL's 4-20mA process monitor part numbers stand for?
Q How does ambient light affect the selection of a process monitor?

Q I need to monitor the load current flowing in a 15A circuit. I plan on using your ACA-20PC-2-AC1-RL ac ammeter; do I need to buy anything else?
Q Can I use the same ac power source that’s powering my load to also supply operating power to your ac ammeters’ TB1 A and B terminals?
Q Are your ACA5-20PC series ammeters supplied with external current transformers (CT)?
Q Can I use a combination of one ACA5-20PC ammeter, a 3-position selector switch, and three 5A CTs to monitor current in a 3-phase ac circuit?
Q Can I remove the built-in CTs on your ac ammeters and then reconnect them remotely?
Q I need to measure current on a 120V / 400Hz AC supply, which one of your AC ammeters do you recommend?