Written by: Dan Weise
Over time, changes in your process needs occur, and a sensor you’ve connected to a Honeywell paperless recorder channel may be taken out of service. When this happens, I suggest that both the analog input and the pen be disabled. Here’s why:
If you don’t disable the analog input, your paperless recorder will periodically report a problem when the sensor is not active, but providing a signal within its configured range. The system will post a message in the diagnostics message log with a warning like the one below:
“Sys Chan 25; check for unplugged device”
Although ordinary users do not routinely use the diagnostics log, it helps, when you search the log for a problem, to only see true error messages.
Note: Analog inputs and pens can be disabled by changing the green arrow (enabled) to a red X (disabled).
Questions? Call (800) 953-7626
Check my other blog posts on Honeywell paperless recorders
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Lesman Instrument Company is the authorized Honeywell stocking distributor in North and Central Illinois, Northern Indiana, Eastern Iowa, Wisconsin, and Michigan’s Upper Peninsula. If you are located outside that area, you can find your local sales office or get technical assistance by visiting Honeywell’s contact page.
Dan Weise, Lesman product specialist, is an instructor for training classes on process instrumentation hardware, software, and technology.
Dan has been involved in all facets of data acquisition and process instrumentation since 1978, from sales and commissioning to service and support. He’s a long-time member of ISA, and has been with Lesman since 1988.
In his words, Dan’s the guy “who reads all the manuals nobody else reads”. In Lesman customers’ words, he’s the trainer to call if you want to “cut to the SO WHAT of instrumentation”, so it’s easy to understand.