"OP" Error on Kegland Digital Pressure Meter

[mashdar]

I have a Kegland KL18388 digital pressure guage in a blowtie 2, and it has started reading "OP".

I would think it means "Over Pressure", but the valve is full-open, so not quite 0 psig, but well below 1 psig.

This seams like it should be easy to google, but I struck out. Maybe low battery triggering error?

 

[DuncB]

I would try a battery change first.

 

[mashdar]

Yeah, I'm imagining the battery is low enough some reference voltage is drooping.

Odd that BAT or something didn't come first.

edit: it uses a CR2032, so that's nice at least.