Rtd Temperature Accuracy Test (Resistance) (2640A) - Fluke 2640A Service Manual

NetDAQ
Service Manual
4. Verify Accuracy Configure the Decade Resistance Source for the output values
5. Close Spy Window To close the Spy window, double-click the upper left-hand

RTD Temperature Accuracy Test (Resistance) (2640A)

The following RTD accuracy test applies to the 2640A and uses the four-wire connection
(see Figure 4-3).
1. Connect the Decade Resistance Source to Channels 1 and 11 Remove the
2. Configure Channel 1 for RTD-4W In NetDAQ Logger for Windows, configure
3. Open Spy Window Select the Spy command from the Utilities menu. Select analog
4-18
below and verify the Spy window measurement is between the minimum and
maximum values. Change the channel 1 range as required (see Step 2).
Resistance Range Decade Resistor
300Ω Short Circuit (Zero)
300Ω 290Ω
3 kΩ Short Circuit (Zero)
3 kΩ 2.9 kΩ
30 kΩ 29 kΩ
300 kΩ 290 kΩ
3 MΩ 2.9 MΩ
* The resistance accuracy in this table makes allowance for up to 0.01% decade resistance.
Resistance Range
300Ω Short Circuit (Zero)
300Ω 190Ω
3 kΩ Short Circuit (Zero)
3 kΩ 1.9 kΩ
30 kΩ 19 kΩ
300 kΩ 190 kΩ
3 MΩ 1.9 MΩ
corner control-menu box.
Universal Input Module from the instrument and connect a cable from the Decade
Resistance Source to the Universal Input Module terminals for channel 1 (Sense) and
channel 11 (Source) as shown in Figure 4-3.
channel 1 for RTD-4W and RTD R0 for 100 ohms.
channel 01. Click OK to open the Spy window.
Minimum Reading*
0Ω
289.81Ω
0Ω
2.8981 kΩ
28.981 kΩ
288.37 kΩ
2.8600 MΩ
5700A Minimum Reading
0Ω
189.86Ω
0Ω
1.8986 kΩ
18.986 kΩ
188.90 kΩ
1.8733 MΩ
Maximum Reading*
0.1Ω
290.19Ω
1.0Ω
2.9019 kΩ
29.019 kΩ
291.63 kΩ
2.9400 MΩ
Maximum Reading
0.1Ω
190.14Ω
1.0Ω
1.9014 kΩ
19.014 kΩ
191.10Ω
1.9267 MΩ
4-18.