Operation Manual

17
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1.2 Battery handling
- When battery cells have to be replaced or before opening the battery/fuse compartment
cover, disconnect any measuring accessory connected to the BENNING IT 120 B and power
off the BENNING IT 120 B. Hazardous voltage inside!
- Insert cells correctly, otherwise the BENNING IT 120 B will not operate and the batteries
could be discharged.
- If the BENNING IT 120 B is not used for a long period of time remove the battery from its
compartment.
- AlkalineorrechargeableNi-CdorNi-MHbatterycells(sizeAA)canbeused.Theoperating
hours are given for cells with a nominal capacity of 2100 mAh.
- Do not recharge alkaline battery cells!
The battery is charged whenever the power supply adapter is connected to the
BENNING IT 120 B. In-built protection circuits control the charging procedure and assure maximal
batterylifetime.Powersupplysocketpolarityisshowninthegurebelow.
Power supply socket polarity
Note:
- Use only power supply adapter delivered from manufacturer or distributor of the
BENNINGIT120Btoavoidpossiblereorelectricshock.
2. Instrument display
Legend:
1 Main function name
2 Function or sub-function name
3 Measuring parameters and limit values
4 Resulteld
 Inthiseldthemainandsub-resultstogetherwiththePASS/FAIL/ABORTstatusare
displayed.
5 Online voltage and output monitor.
6 Messageeld
 Inthiseldbatterystatusandwarnings/messagesrelatedtotheactualmeasurementare
displayed.
Safety and operational considerations