D2624_15_A5

With the probe out of the sample to be tested, depress the pressure-sensitive switch once and then again when EMCEE is displayed. The display will scroll through the test operation, and the new conductivity data should read 0. The temperature of the environment will be displayed. If a number other than 0 is displayed, this probably is an indication that the probe is contaminated and should be cleaned. See section 9 of the written standard on cleaning procedures. Over-range check. Conductivity is greater than 2,000 picosiemens per meter. With the probe out of the sample to be tested, depress the pressure-sensitive switch once and then again when EMCEE is displayed. When the red LED stops blinking and remains on, short the outer conductor to the inner conductor of the probe. A thumb or finger touching the tip of the probe to short the two conductors is sufficient and is perfectly safe to the operator. At the end of the test period, when the LED extinguishes, the display will scroll through, and in lieu of displaying a numerical value for the conductivity, the display will read "Over," thus indicating that the measurement is over range and the meter is operating properly.