Performance Test

7
Performance Test

W Warning

To avoid electric shock, do not execute the
performance tests procedures unless the
Meter is fully assembled.
To ensure that the Meter is working properly and performs
to specifications, use the following procedures. If the Meter
fails this test, it needs calibration adjustment or repair.

Multimeter

Note
The following performance test is for all functions
except for temperature. Temperature performance
test follows this procedure.
1. Referring to Table 3, put the Meter in the function and
range shown for Test 1.
2. Apply the input from the appropriate source to the [+]
and COM jacks on the Meter. The reading on the
display should be within the MINIMUM and MAXIMUM
values shown in Table 3.
3. Test the remaining functions and ranges. Repeat steps
1 and 2 for test numbers 2 through 41.

Temperature

Note
The performance test for the other functions must
be done before this test is done.
1. Connect the equipment as shown in Figure 3.
2. Insert a mercury thermometer to the same depth as the
thermocouple wire to verify that the ice bath
temperature is 0.0°C.
3. Short (or apply 0.0 mV) to the copper wires at the
5700A Calibrator.
4. Verify that the Meter reads 0.0°C ±0.8°C.
5. If this test fails, reposition the thermocouple wires and
mercury thermometer in the ice bath and repeat steps
3 and 4. If the Meter continues to fail, use steps 6
through 8 to verify the temperature performance tests.
6. Remove the short applied in step 3.
7. Set the 5700A using the input voltage shown in Table
4. The reading on the display should be within the
values shown in Table 4.
8. Repeat step 3 to verify that the ice bath temperature is
at 0.0°C ±0.3°C.
Calibration Adjustments
Perform the following calibration adjustment procedures if
the Meter fails the performance test.

Initial Steps

1. Remove any input signals to the Meter.
2. Remove the four screws on the back and separate the
case bottom and case top.
Notice that when you do so the battery remains in the
case top and power to the Meter is disconnected.
Note
To avoid stretching or bending the battery
contacts, connect leads to the base of the
contacts as shown in Figure 4.
3. Observing correct polarity, connect a 9 V battery to the
battery contacts using easy hook jumpers or alligator
clip leads (see Figure 4).

Multimeter

Note
The following calibration adjustment
procedure is for all functions except for
temperature. Temperature calibration
adjustment follows this procedure.
1. Set the calibrator for 0 V dc. Put the Meter in the 4.000
V dc range.
2. Connect the calibrator to the [+] and COM jacks on the
Meter.
3. Apply an input of +4.000 V dc ±0.25%
The Meter display should read between 3.997-4.003 V.
If it does not, adjust R4 as described in step 4 (see
Figure 4).
4. Adjust R4 (see Figure 4) so that the Meter display
reads between 3.997 and 4.003 V.
5. Proceed to adjust the Temperature function.