TB 9-6625-173-24
8. Current Drain
a. Performance Check
(1) Connect equipment as shown in figure 1 below.
Figure 1. Current Drain Connections.
(2) Configure multimeter for dc volts measurement in auto range. Adjust the DC
power supply for a 12 V indication on the multimeter. Disconnect the multimeter used in
connection 1.
(3) Typical current drains should be ~0.6 mA during sleep mode, ~19 mA during a
1 Hz sample rate with RS232 communication (4.2 mA without RS232), and ~28 mA during
100 Hz sample rates with RS323 communication (17mA without RS232).
(4) Verify the Battery voltage register in the status table displays +12 V 0.5 V as
compared to the 12 V input.
(5) Disconnect the multimeter for connection 1.
(6) Verify the Panel Temp register in the status table displays the correct
temperature.
(7) Verify the Lithium Battery register in the status table reads greater than 3 V.
9. Analog Ranges
a. Performance Check
(1) Connect positive lead from calibrator to SE channel 1 and the negative lead to
SE channel 2. Also connect SE channel 2 to the nearest analog ground.
NOTE
Ensure "Public" is selected and use ports and flags to enable
the various flags for (True/False; or On/Off). A single click in
the `Radio Button' will enable and disable the desired flag. A
momentary wait is typical for the flag to engage/disengage.
(2) Download program Rangetst.CR1.
(3) Set Flag (1) true and set the calibrator for a +5000 mV output. Record the
reading to table 1 and verify specifications. If not within specifications perform b below.
Set the calibrator for a 0 V output and measure the offset voltage and record the reading to