DESCO WEST
- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178
DESCO EAST
- One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website:
Desco.com
TB-3070
Page 3 of 3
© 2015 DESCO INDUSTRIES, INC.
Employee Owned
5. Re-assemble the tester.
Specifications
Output Voltage: 2.5VDC @ 10mA
Dimensions: 4.75" x 1.75" x .75" (12 cm x 5cm x 2cm)
Operating Temperature: 0° to 40°C
Calibration
The Low Resistance Tester is calibrated to standards
traceable to NIST. Frequency of recalibratrion should
be based on the critical nature of those ESD sensitive
items handled and the risk of failure for the ESD
protective equipment and materials. In general, we
recommend that calibration be performed annually.
1. Calibration is performed by placing various resistors
between the probe tip and the lead wire.
2. Attach the alligator clip to the lead wire.
3. Set the Low Resistance Tester to the 1 ohm test
setting.
4. Attach the lead of a 1 ohm resistor to the alligator
clip.
5. Firmly place the tester’s probe tip on the opposite
resistor lead.
6. Press and hold the test button. The PASS LED
should illuminate.
7. Repeat the procedure with a 1.2 ohm resistor. The
PASS LED should not illuminate.
8. Repeat this process with the ranges listed in the
table below. If the unit fails calibration, check and
replace the battery.
Test Range Setting
PASS
FAIL
1 ohm
0 to 1 ohm
≥ 1.2 ohms
2 ohms
0 to 2 ohms
≥ 2.2 ohms
10 ohms
0 to 10 ohms
≥ 11 ohms
Maintenance
Battery Replacement
1. Properly ground yourself using a wrist strap.
2. Remove the 2 screws located at the back of the
tester.
Figure 6. Locating the enclosure screws
Figure 7. Removing the back cover
3. Remove and turn over the circuit board.
4. Locate and replace the battery (3 Volt; Model
CR2032).
First, place
battery under
prongs
Next, press here to snap
battery in place
Figure 8. Replacing the battery
Limited Warranty, Warranty Exclusions, Limit of
Liability and RMA Request Instructions
See
Desco Terms and Conditions
