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HHM-EX540-Multimeter-Series
Industrial Multimeters Waterproof (IP67) for Heavy-Duty Use
HHM-EX540-Multimeter-Series
From
$
288.55
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Rated 1 out of
5
by
Unhappy customer 4444 from
Defective EXTECH EX530
purchased a multimeter recently (order HQ02088673). I received the multimeter but it is defective out of the box. The voltmeter mV AC mode fluctuates up to 4 mv and never gives the same reading when I short the probes together. It never goes to (or near) zero. The best stable reading I got was 0.08 mV AC. It started to fluctuate again when I released and re-shorted the probes again. I bought the EXTECH EX530 for that specific mode. (resolution of 0.01 mV in AC). I don't mind a stable zero offset. But a drift of over 400 graduations is unacceptable.
There is also a problem with the ohm meter. It fluctuates and I can not trust the continuity function (beeb) as it comes on and off whit the probes on a short peaces of steel. Even with pressure applied.
I tried a different set of probes and it does the same thing.
In the RMA process for repair
Date published: 2021-09-02
Does a new purchase of one of these units come NIST-traceable calibrated and with a certificate of calibration?
This series of meters can be ordered with a optional NIST certificate and/or a Certificate of Calibration so send a request for pricing to sales@omega.com with the specific model of interest.
Date published: 2023-01-17