Performance Verification 1-17
Resistance measurement accuracy
Follow the steps below to verify that Model 2410 resistance measurement accuracy is within
specified
limits. This procedure involves applying accurate resistances from a resistance
calibrator and then verifying that Model 2410 resistance measurements are within required limits.
1. With the power off, connect the resistance calibrator to the Model 2410 INPUT/
OUTPUT and 4-WIRE SENSE jacks as shown in Figure 1-3. Be sure to use the four-
wire connections as shown.
2. Select the resistance calibrator external sense mode.
3. Configure the Model 2410 ohms function for the 4-wire sense mode as follows:
• Press CONFIG then MEAS Ω. The instrument will display the following: CONFIG
OHMS
SOURCE SENSE-MODE GUARD
• Select SENSE-MODE, and then press ENTER. The following will be displayed:
SENSE-MODE
2-WIRE 4-WIRE
• Select 4-WIRE, and then press ENTER.
• Press EXIT to return to normal display.
4. Press MEAS Ω to select the ohms measurement function, and make sure the source
out-put is turned on.
5. Verify ohms measurement accuracy for each of the resistance values listed in Table 1-6.
For each measurement:
• Set the resistance calibrator output to the nominal resistance or closest available
value.
NOTE It may no
t be possible to set the resistance calibrator to the specified value. Use
the closest possible setting, and modify reading limits accordingly.
• Select the appropriate ohms measurement range with the RANGE keys.
• Verify that the Model 2410 resistance reading is within the limits given in the table.
6. Repeat the entire procedure using the rear panel INPUT/OUTPUT and 4-WIRE SENSE
jack
s. Be su
re to select the rear panel jacks with the front panel TERMINALS key.
2410-902-01.book Page 17 Monday, November 7, 2005 2:49 PM
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