Model 7700 Multiplexer Module Instructions for use with DAQ6510
22 077144300 / April 2018
11. Source each of the voltages in the table below to verify that the temperature readings are within limits.
Make sure to select the appropriate thermocouple type for each group of readings.
12. Set the decade resistance box to each of the values shown in the table below. Verify that the temperature
readings are within the required limits.
13. Return to the CHANNEL swipe screen, and open Channel 1.
Applied resistance* Reading limits (1 year, 18 °C to 28 °C)
22.80 Ω -190.06 °C to -189.94 °C
100.00 Ω -0.06 °C to +0.06 °C
313.59 Ω 599.94 °C to 600.06 °C
*Based on α = 0.00385
Verifying frequency
To verify the module frequency:
1. Connect the function generator to the CH1 H and L INPUT terminals of the module. Refer to the next figure
for more information.
Figure 11: Connections for frequency verification
2. Install the module in Slot 1 of the DAQ6510.
3. Turn on the power.
4. Allow the instrument to warm up for one hour.
5. Make sure that the front-panel TERMINALS switch is set to REAR.
6. Set the function generator to output a 1 kHz 1 V
RMS
sine wave.
7. On the front panel of the instrument, select the FUNCTION key and then select Frequency.
8. On the Home screen, swipe to the CHANNEL swipe screen.
9. Close channel 101.
10. Verify that the DAQ6510 frequency reading is between 0.9999 kHz and 1.0001 kHz.
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