TB-2024
Page 2 of 4
Inspection
Remove the meter from the carton and
inspect for damage. Each test kit should
include the following:
1 Protective carrying case
1 LCD megohmeter
2 Test leads
2 5-pound electrodes
1 Grounding clip
1 AC adapter/charger
1 Rechargeable battery
Properly store the meter and component
assemblies when not in use. Do not
charge battery unless it is fully
discharged. Doing so will reduce the life
of the battery.
Features
A. Scale:
1/2 inch high digital LCD
display provides easy to read
resistivity/resistance measurements.
Values are expressed with a mantissa
and exponent power. For example, if
the display reads “2.9 E 9”, 2.9 is the
mantissa, 9 is the exponent power; the
reading is 2.9 x 10
9
ohms.
B. Test Button:
This button turns on
the power to the meter. The operator
needs to hold the button down for 10-
20 seconds for the unit to make
numerous readings and calculations.
(Testing in accordance with ESD
S4.1-1997 requires 15 seconds of
electrification; in contrast, most analog
type meters display measurements
instantaneously.) When released, the
measured reading will remain illuminated
for at least 10 seconds.
C. Test Range Voltage Switch:
10 Volts for 1x10
3
- 1x10
11
ohms
100 Volts for 1x10
6
- 1x10
12
ohms
D. Jacks:
2.5mm plugs will fit the
megohmmeter jacks. Banana plugs will
fit the 5 lb. electrodes.
E. AC-Battery Charger Jack:
12 volts DC - 100mA.
F. 9 Volt Battery Compartment.
G. Parallel Electrodes.
Figure 3. Features of the LCD Surface Resistance/Resistivity
Megohmmeter
Figure 4. If the value of the
measurement is below 1000 ohms on
the 10 volt scale or 1x10
6
on the 100
volt scale an “L” will appear on the LCD
display.
Figure 5. If the value of the
measurement is over 5x10
12
ohms an
“H” will appear on the LCD display.
Figure 6. A “P” will appear on the LCD
display if there is too much electrical
60Hz noise in the area or if a test is
performed on a high open resistance.
Figure 7. When the unit’s batteries
need recharging a “BAL” will appear on
the LCD display as the meter is being
operated. To maximize the life of the
battery do not recharge until a low
battery “BAL” is displayed.
A
B
E
D
G
C
F
1.7x10
5
S
Item #19770
Chino, CA
Canton, MA
DESCO WEST
- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178 • Fax (909) 627-7449
DESCO EAST
- 90 Hudson Road, Canton, MA 02021-1407 • (781) 821-8370 • Fax (781) 575-0172 • Web Site: http://www.desco.com
