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11
Trouble Shooting
If the instrument fails to operate, check batteries and test leads etc., and replace as
necessary. Double check operating procedure as described in this user's manual.
If the instrument voltage-resistance input terminal has been subjected to high voltage
transient (caused by lightning or switching surge to the system) by accident or abnormal
conditions of operation, the series fusible resistors will be blown off (become high
impedance) like fuses to protect the user and the instrument. Most measuring functions
through this terminal will then be open circuit. The series fusible resistors and the spark
gaps should then be replaced by qualified technician. Refer to the LIMITED WARRANTY
section for obtaining warranty or repairing service.
Cleaning and Storage
Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives or
solvents. If the meter is not to be used for periods of longer than 60 days, remove the
batteries and store them separately.
Battery replacement
The meters use standard 3V alkaline button battery (ANSI/NEDA-5004LC, IEC-CR2032).
In models ACD-10 PRO & ACD-10 TRMS PRO, one battery are used.
Loosen the two screws from the case bottom and remove the bottom case. Slide the
battery out the side of the holder and replace with a new battery (observe polarity).
Replace the bottom case. Re-fasten the screws.
6) Specifications
General Specifications
Display : 3-3/4 digits 4000 counts LCD display(s)
Update Rate : 3 per second nominal
Polarity : Automatic
Low Battery Indication: Below approx. 2.4V
Operating Temperature : 0°C to 40°C
Relative Humidity : Maximum relative humidity 80% for temperature up to 31°C
decreasing linearly to 50% relative humidity at 40°C
Altitude : Operating below 2000m
Storage Temperature : -20°C to 60°C, < 80% R.H. (with battery removed)
Temperature Coefficient : nominal 0.15 x (specified accuracy)/°C @(0°C - 18°C or 28°C
- 40°C), or otherwise specified