Chapter 3: Testing Performance
To test the DC calibrator
41
5
Set the DC output voltage to +2.400 V using the Level spin box or the numeric
keypad dialog.
You can access the numeric keypad dialog by selecting (clicking on) the value in the
Level box. Enter the values by selecting digits, signs, and exponents in the keypad.
Select Close when finished.
6
The DVM should read near +2.400 V. Record the reading to four significant digits.
V1 = __________.
7 Set the level to - 2.400 V using the Level spin box or the numeric keypad dialog.
8 The DVM should read near –2.400 V. Record the reading. V2 = __________.
9 Subtract the second reading from the first reading, then divide the result by 4.8 V.
For example, if V1 is +2.397 V and V2 is - 2.395 V, then
10
The final result should be between 0.998 and 1.002. Record the result in the
"Performance Test Record" on page 64.
11 Select Close to exit the calibration menu.
If the test fails
Repair is necessary. See Chapter 5, “Troubleshooting.”
V1-V2
4.8 V
----------------
2.397 V-(-2.395 V)
4.8 V
---------------------------------------------- 0. 9 9 8==
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