Hi my ph prob has been reading 6.74 all day I’ve tried to calibrate it but can not calibrate it won’t calibrate manual or auto the prob is 5 months old any help would be appreciated thanks Adrian
Hi my ph prob has been reading 6.74 all day I’ve tried to calibrate it but can not calibrate it won’t calibrate manual or auto the prob is 5 months old any help would be appreciated thanks Adrian
Try reseating the BNC connector.
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