Fluke Biomedical ULT800 - Manual (Page 21)

Ultrasound Transducer Leakage Current Tester
Checking the Battery
11
Checking the Battery
Note
The LOW BAT light flashes red to indicate that the battery
needs replacement.
1. Use the LEAKAGE/CONDUCTIVITY switch to select
CONDUCTIVITY.
2. Press the ON/TEST button to turn on the ULT800.
The self-check routine starts, calibrating the unit. All four LED
indicators flash in sequence, continuing for five cycles. The READY
light glows amber when the self-test routine completes with a
successful battery test.
Checking Solution Conductivity
Note
The LED indicating a test result remains on for 12 seconds.
The ULT800 then powers off to conserve the battery. To
resume testing, power on the ULT800, allow the self-
check/battery test to complete, and then reinitiate the test.
1. Select CONDUCTIVITY.
2. Press the ON/TEST button to perform a measurement
cycle.
3. At the end of the measurement cycle (two seconds), the
LED indicates the results of the test.
The green PASS light illuminates if the solution passed the
Conductivity Test. The red FAIL light illuminates if the solution
failed the Conductivity Test. Check that you have immersed the
electrodes to a depth of at least 25 mm (1 inch) and that they are
firmly connected to the ULT800, then retest. If the failure repeats,
replace the solution and then retest.