Troubleshooting & Maintenance; Battery Replacement - Amprobe AD40B Bedienungshandbuch

Measuring method: Dual slope integration. Average Sensing, rms
indication.
Resistance (AC40B)
Range
400 Ω
Max open circuit voltage, AC40B: -1.2 V nominal
Overload Protection, AC40B: 600 Vrms
Audible Continuity (AC40B)
Like resistance measurement. Continuous tone and R display at R ≤40 Ω
for AC40B
Max open circuit voltage: -1.2 V
Overload Protection: 600 Vrms
Data Hold: Hold display reading for all functions and ranges. Always
remember to release Data Hold when taking a new measurement.
Troubleshooting & Maintenance
In case of malfunction during the operation of the meter, the following
steps should be performed in order to isolate the cause of the problem:
1. Check the batteries.
2. Review the operating instructions for possible mistakes in operating
procedure.
3. Check clamp against a known current source.
4. Check test leads for continuity (voltage and resistance).
Except for the replacement of the batteries, repair of the clamp should be
performed only by a Factory Authorized Service Center or by other
qualified instrument service personnel.
Front panel and case can be cleaned with a mild solution of detergent and
water. Apply sparingly with a soft cloth and let dry completely before
using. Do not use aromatic hydrocarbons or chlorinated solvents for
cleaning.

Battery Replacement

The meter is powered by two 1.5 V AAA batteries. Replace batteries as
soon as N symbol is displayed.
1. Turn meter off. Disconnect and remove the test leads.
2. Position the meter face down. Remove the two screws and lift off rear
case.
3. Replace the batteries.
4. Reassemble the case.
Accuracy
±(1.0 %rdg + 5 dgt)
Resolution
0.1 Ω
5