||Specially designed to verify the accuracy of the electronics inside the Bathycorrometer®, the BCM Checker is suitable for both Buckleys and Roxby units. Quick and easy to use, it will verify the accuracy of the electronics inside the Bathycorrometer® without breaking the water seal and will also provide a benchmark for recalibration. The BCM checker consists of a precision voltage reference giving an output of 1.990 volts. The unit should be plugged into the socket in the Bathycorrometer's® handle, and the other lead should be connected to the probe. With the BCM checker switched off, the Bathycorrometer® should read 0.000 and, with the BCM checker switched on, the Bathycorrometer® should read 1.990.
The BCM checker is powered by a 9 volt battery (PP3) and will shut off its output when the battery voltage is low. One LED shows when the unit is switched on and a second indicates when the battery needs replacing.