DET2/3
38
Maintenance
Battery charge
Note:
Make sure the ambient temperature is correct to charge a battery (see Specifications (page 39)).
When the battery status indicator shows the battery is nearly discharged or is discharged, recharge the battery as
detailed below.
The DET2/3 can be used while the battery is on charge. The instrument will charge faster when switched off.
A charge cycle on a fully discharged battery takes approximately four hours (see the Battery status (page 36)).
1. Switch the instrument
Off
.
2. Disconnect the instrument from all electrical circuits.
3. Open the external power socket rubber door.
4. Connect the ac / dc adaptor (amber LED shows for two seconds then changes to green (charging)).
5. When fully charged the LED shows steady amber (power connected - battery charged).
6. Once the charge cycle has started the instrument can be used as normal.
12 V supply
When the battery status indicator shows the battery is nearly discharged or is discharged, use the power supply
provided with the instrument to recharge the battery. The instrument will function normally with the power
supply in use. Use only the power supply provided by Megger; other supplies may introduce noise into the
measurement, affecting accuracy and instrument stability.
Note:
The LED indicating the instrument is connected to an external 12 V supply will go amber if the charger is
connected (and on), but unable to charge.
The instrument will now operate on the 12 V dc supply.
www.calcert.com
sales@calcert.com
1.800.544.2843
0
5
10
15
20
25
30