56-101-00901 Revision F
Page 9
Note:
The converter output can be checked by connecting a DVM (10MΩ input
impedance or less and set for 200 VDC) to the 45V Output terminals of the
converter observing polarity. The output voltage with a fresh battery should
measure approximately 47VDC.
•
Connect the 45V battery leads to the 45V Output terminals of the Converter
observing polarity (refer to Figure 4).
Figure 4
Voltage Conversion
e) The "coin" battery has a minimum life expectancy of five years and is installed at time of
manufacture. To remove the "coin" battery, do the following:
•
Insert screwdriver between face of cell and holder spring clip through one of the
slots.
•
Pry up and remove with fingers or insulated tweezers.
CAUTION:
IF A SCREWDRIVER OR OTHER METAL TOOL IS USED TO PRY
OUT CELLS, TAKE CARE NOT TO SHORT CIRCUIT OR DAMAGE
CELL INSULATION.
f) Carefully place the bulkhead of the panel assembly between the vertical guides in the
carrying case, and slide the assembly downward until the 45V battery connector can be
connected and connect. Then, slide panel assembly downward into place.
2. Perform the TT1000A Battery check prior to testing as follows:
a) To check the 45-volt battery used for insulation testing, rotate the FUNCTION selector
switch to RESISTANCE MEASURE position and the RESISTANCE RANGE selector to
BAT.
b) If voltage is below 45 volts, replace the 45-volt battery as outlined in. 1. Battery
Installation / Replacement, section a), on page 8.
c) To check the six 1.5-volt batteries used for all functions rotate the RESISTANCE
RANGE selector switch to 20 ohm position and short test lead clips together.
d) Depress the black pushbutton switch. If BAT is displayed, replace the six 1.5-volt
batteries as outlined in 1. Battery Installation / Replacement on page 8.
Note:
After removal, test each cell individually (under load) as one or more defective
cells mixed with good ones may produce a low battery warning.