Fluke NetDAQ 2640A, Service Manual

Page: 132 / 260

NetDAQ
Service Manual
4-10
Volts AC Accuracy Test 4-8.
Complete the following procedure to test the accuracy of the volts ac function for both
the 2640A and 2645A. Measurement accuracy applies to all channels, not just the
channel used for the test.
1. Configure Channel 1 for Volts AC In NetDAQ Logger for Windows, configure
channel 1 for volts ac, 300 mV range.
2. Open Spy Window Select the Spy command from the Utilities menu. Select
channel 0101 (instrument 01, channel 01) from the Channel list. Click OK to open
the Spy window.
3. Verify Accuracy Configure the 5700A for the output values below and verify the
Spy window measurement is between the minimum and maximum values. Change
the channel 1 range as required (see Step 1).
Volts AC Range 5700A Output Minimum Reading Maximum Reading
300 mV 20 mV@1 kHz 0.0197V 0.0203V
300 mV 20 mV@100kHZ 0.0185V 0.0215V
300 mV 300 mV@1 kHz 0.29885V 0.30115V
300 mV 300 mV@100 kHz 0.2845V 0.3155V
3V 3V@1 kHz 2.9885V 3.0115V
30V 30V@1 kHz 29.885V 30.115V
300V [2640A only] 300V@1 kHz 298.85V 301.15V
4. Close Spy Window To close the Spy window, double-click the upper left-hand
corner control-menu box.
Frequency Accuracy Test 4-9.
Complete the following procedure to test the accuracy of the frequency function for the
2640A and 2645A. Measurement accuracy applies to all channels, not just the channel
used for the test.
1. Configure Channel 1 for Frequency In NetDAQ Logger for Windows, configure
channel 1 for frequency. There is no range selection for frequency because all
frequency measurements use Autoranging.
2. Open Spy Window Select the Spy command from the Utilities menu. Select
channel 0101 (instrument 01, channel 01) from the Channel list. Click OK to open
the Spy window.