IDEAL INDUSTRIES 61-320 - Manual (Page 13)

Page 11
Performance Tests
The following performance tests verify the complete operability of the meter and check the accuracy of each
meter function against the meter’s specifications.
Accuracy specifications are valid for a period of one year after calibration, when measured at an operating
temperature of 18ºC to 28ºC and at a maximum of 80% relative humidity.
To perform the following tests, it is not necessary to open the case; no adjustments are necessary. Merely
make the required connections, apply the designated inputs, and determine if the reading on the meter display
falls within the acceptable range indicated.
If the meter fails any of these tests, it needs calibration adjustment or repair.
Testing the Display
Press “HOLD” key while turning the meter on from the “OFF” position to hold the display in the Display Test Mode.
Compare the display with the example in Figure 2. Turn off the meter to escape the test mode.
LCD Graphics 61-324
Figure 2 Display Test
Testing the Voltage Function
To verify accuracy in the AC and DC voltage ranges, do the following:
1. Turn the rotary switch to “V
” position.
2. Connect the calibrator to the VΩ and COM inputs on the meter.
3. Set the calibrator for the voltage and frequency from step 1 to 8 in Table 1.
4. Compare the reading on the meter display with the display reading shown in Table 1.
5. If the display reading falls outside of the range shown in Table 1, the meter does not meet specification.
Form number TM61320-2-4
Rev 2 September 2002