LR-24 Electrofisher - Field Environmental Instruments

LR-24
BACKPACK ELECTROFISHER
Display Panel Menu Key Descriptions (Cont.)
Fig. 2.13
Fig. 2.14
System Menu 6: Extended System Test
This is a diagnostic test mode for test and service technicians. It
requires the use of a standardized test load connected to the anode
and cathode.
During the test the LR-24 checks its program memory for errors, then
it checks the operation of the output safety relay, the output switch
(IGBT), the accuracy of the five internal voltage ranges, estimates the
charge in the battery and measures the efficiency of the high voltage
converter. This test takes approximately 20 seconds to run. To run
the test, follow the instructions on the screen. See Figure 2.13.
The user must press the Up arrow key to continue the test pressing
any other key will abort the test and return to the status display
(Figs. 2.14-2.15).
Followed in a few seconds by the screen in Fig. 2.18.
Fig. 2.15
If the relays and regulation pass the test, the following message will
appear on the display, indicating the first series of testing passed
(Fig. 2.17).
The next part of the test requires that the output of the LR-24 be
connected to a test load or that the electrodes be in water. This part
of the test takes about 15 seconds to complete. When it is finished,
the output of the LR-24 will automatically turn off.
Fig. 2.16
If the LR-24 passes this part of the test this message will be displayed.
(Fig. 2.18)
This information is displayed for as long as the pole switch is held
down.
The use of a non-standard test load or electrodes in water will
probably yield different efficiency numbers.
Fig. 2.17
Fig. 2.18
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