What kind of watch is this?
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Is that an ammeter in the picture? The electrical device is a reciprocating pump, 380 volts. The device is not in use, so I don’t understand why there is a current reading shown
This is an ammeter; the current value is indicated by the black pointer. The yellow-colored pointer was originally red, and it indicates the maximum allowable current level – the current must not exceed 52 amps
This is an ammeter; the black one is the current indicator pointer, while the white one serves as a reference indicator.
Got it, thanks. If this pump is not in use for a long time, does it need to have its power cut off? There is only a button to start and stop the pump on site.
Pumps that are not in use for long periods should have their power cut off, and they need to be rotated periodically
Please check the explanation on the second floor; it’s completely correct
Ammeter, old model, with a limit function; when the pointer turns from yellow to black, it indicates an overload.