Additel 221A Multifunction Temperature Calibrator User Manual - Manual (Page 35)

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1. Figure 8.5 shows the resistance measurement connections.
2. If measurement is active, press
once, otherwise press twice.
3. Pressthe navigation keys Up/Down to select the first item (range 0 to 400Ω) or second item (range 0 to 4000Ω)
from the pop‐up list, then press Enter or Done to change the measurement or press Options to show resistance
measurement configuration interface.
4. To improve measurement precision, you can short the resistance input, then press Zero to clear the measured
value.
8.2.6 Limit Switch Test
Proceed as follows to test limit switch:
1. Figure 8.6 shows the limit switch test connections.
2. If measurement is active, press
once, otherwise press twice.
3. Press the navigation keys Up/Down to select the third item from the pop‐up list, then press Enter orDone to
change the measurement.
4. Press View to view the switch test records with a maximum number of ten.A record displays the triggering state of
the switch and the source value.
8.2.7 Current Measurement
Proceed as follows to measure current:
1. Figure 8.7 shows the current measurement connections.
2. If measurement is active, press once, otherwise press twice.
3. Press the navigation keys Up/Down to select the first item from the pop‐up list, then press Enter orDone to change