How To Verify; Dc Volts Measurement - Fluke 753 Calibration Manual

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Calibration Manual

How to Verify

For each procedure there is a table of test points and permitted readings. If the result of
the test is not in the range shown, the Unit Under Test (UUT) is out of tolerance and must
be re-calibrated or repaired if necessary. There are columns for 1 and 2-year
specifications wherever the specifications are different.
Follow these general instructions for all the tests:

DC Volts Measurement

To verify the dc volts measurement function:
To prevent possible damage to the Product, do not force a dual
banana plug between any two jacks in the horizontal
orientation. Doing so will damage the jacks. Use the supplied
jumper wire when needed for RTD measurements. A dual
banana plug may be used in the vertical orientation.
10
•
For all tests, operate the UUT on battery power. Make sure the battery is fully
charged.
•
For measurement functions, push the Range softkey to lock the range on the
range specified in the test points table. It can be necessary to push the Range
softkey more than once.
•
Ranges in the specification tables include the 10 % over-range capability. Range
names on the Product display do not include the 10 % over-range. For example,
the UUT display shows Range 100 mV, but the range is specified to 110 mV.
•
Let each piece of verification equipment have its specified warm-up time.
•
A minimum of 5 minutes is necessary for warm up. The source circuits shut off
when not in operation. A separate warm up is necessary when Source mode is
first used.
•
For each test, make sure the verification equipment is stable and that the
"unsettled" annunciator on the UUT is not shown.
1. Connect the UUT to the 5522A as shown in Figure 1.
2. Set the UUT to the dc volts measurement function.
3. Push the Range softkey on the UUT to lock on the 100 mV range.
4. Set the 5522A to the first test point in Table 3.
5. See if the value shown on the UUT is in the range shown in the applicable
column.
6. Continue through the test points. Make sure to lock the UUT on the specified
range.
7. When you complete the test, set the 5522A to STANDBY.
WCaution