Form Number TM61312-4
Rev 2 Aug 2007
Page 13
Testing the Voltage Function (for 61-312 / 61-314)
To verify accuracy in the AC and DC voltage ranges, do the following:
1. Turn the rotary switch to “
V
” position.
Press the
SEL
Button to select the
DC
function
2. Connect the calibrator to the
V
Ω
Hz
and
COM
inputs on the meter.
3. Set the calibrator for the voltage and frequency for steps 1 through 7 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.
Table 1 DC Voltage Test:
Step
Range Input
Reading
1
400mV
-300.0mV
-297.2 to –302.8
2
400mV
4.0mV
3.6 to 4.4
3
400mV
300.0mV
297.2 to 302.8
4
4V
3.000V
2.972 to 3.028
5 40V
30.00V
29.72 to 30.28
6 400V
300.0V
297.2 to 302.8
7 600V
600V
591 to 609
6. Turn the rotary switch to position.
“V
”
Press the
SEL
Button to select the
AC
function
7. Set the calibration for the voltage for steps 1 through 10 in Table 2.
8. Compare the reading on the meter display with the display reading shown in Table 2.
9. If the display reading falls outside of the range shown in Table 2, the meter does not
meet specification.
Содержание 61-312
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