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pH Checker Model : 602 < Features > Low cost, pocket size simulators for pH 4.00, 7.00 and 10.00. Օ These checker are easy to use and provide a quick way for checking the performance of any pH instruments. Press "HI Ohm" high impedance mode to simulate an Electrode. Օ Compact case features push button range selector switch for one hand operation. Bright red LED indicate simulation range or when battery power falls below a specific level. Spcifications Range pH 4.00, pH 7.00, pH 10.00 Accuracy ± 0.1 % Power 9V DC Dimensions 75 x 100 x 30 mm. Weight 250g < Operating Manual > 1. Open the battery compartment and connect the 9V battery. 2. Connect the calibration lead to checker with your device. 3. Turn on the power switch. 4. Press "SEL" button to select the desired range and read the display value on your device. If the display value is the same as the checker, then your device is in calibration. 5. Press "HI Ohm" high impedance mode to simulate an Electrode.
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