10 TEGAM WAY • GENEVA, OHIO 44041 • 440-466-6100 • FAX 440-466-6110
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3-2
OPERATING INSTRUCTIONS
it will read 199,999 counts, or less. The decimal point is
located automatically for the correct reading.
Thus, it is not necessary to use the RANGE pushbutton.
However, if a specific range is desired for any reason, depress
the RANGE pushbutton several times to step through the five
ranges. The first step after Auto-range is the 0.2 Ω range;
each step following is to a higher range, as seen on the
display. After the 2 k range, the next step is to Auto-Range,
again. If the selected range is too low for the value of the
resistor under test, the display will show over-range.
Note that if a resistor value is very close to 200,000 counts,
the unit may cycle between 199,999 on one range and
20,000 counts on the next lower range. If that should occur,
use manual ranging and set it to the lower range reading
20,000 counts.
The BACK-LIGHT pushbutton turns on the back-light behind
the display, to be used only in dim light, because it does
increase the drain on the battery. The back-light will stay on
until turned off by a second operation of the back-light switch
or until power is turned off. When power is turned on, the
default condition is back-light off.
The POWER pushbutton turns on the power to operate the
unit. This is an “alternate-action” (latching) pushbutton; a
second operation turns the power off. The appearance of the
display will show that power is on; absence of the display
indicates that either power is off, batteries are discharged, or
there is some malfunction. Note that when power is turned
off, it may take several seconds to discharge circuit capacity
to completely blank the display. The black markings seen
have no effect and disappear when power is turned back on.
CAUTION
DO NOT USE EXCESSIVE FORCE TO OPERATE ANY OF THE
PUSHBUTTONS. POWER OFF DOES NOT OCCUR UNTIL
BUTTON IS RELEASED.
