Ma Measurements - GE Druck DPI 841 Handbuch

Operation - mA measurements
DPI 842 only. To measure a current:
1. Connect the instrument (Figure 5) and, if necessary,
adjust the Set Up (Table 1).
2. Select the applicable mA input task from Select Task
(Table 2/3) and, if necessary, adjust the Settings
(Table 4).
Maximum: 30V
a) with external loop
Figure 5: Example configuration - mA measurement
Operation - Switch test
DPI 842 only. To do tests on a frequency operated switch:
1. Connect the instrument (Figure 6) and, if necessary,
adjust the Set Up (Table 1).
2. Select the applicable switch test from Select Task
(Table 2/3) and, if necessary, adjust the Settings
(Table 5). The display shows the switch condition (open
or closed) in the top right-hand corner.
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Settings
b) with internal loop
power power
3. Supply the output values to the system (Table 7).
• Example - "Nudge" output.
a. Use Edit (■ ■) to set a value less than the switch
value.
b. Use the ▲ ▼ buttons to change the value in small
increments.
• Example - "Ramp" output.
a. Set "High" and "Low" values that are applicable to
the switch value (Table 6). Then, to get an accurate
switch value, set a long "Travel" period.
b. Use Start/Stop (■ ■) to start and stop the "Ramp"
cycle.
4. If necessary, supply the output values in the opposite
direction until the switch changes condition again.
The display shows the applicable values to open and
close the switch.
5. To do the test again, press ESC to reset the values.
Settings
Figure 6: Example configuration - Switch test
Edit Settings
K395 Issue 3