Nimh Rechargeable Batteries; Life Of Nimh Batteries; Charging Nimh Batteries - Fluke Datapaq TP3 User Manual

NiMH Rechargeable Batteries

The logger can use a pack of four rechargeable 1.2 V nickel-metal-hydride
(NiMH) cells. These are suitable for applications where the logger's operating
temperature (i.e. the temperature of the logger itself) does not exceed
70°C/158°F. Only Datapaq battery-packs are suitable.
For the service life and replacement of the battery, see p. 22.

Life of NiMH Batteries

The data below can serve as a guide – though the values given are no more than
an indication of the battery life that can be expected. See p. 19 for general
considerations that affect actual battery life.
No. of Sample
Channels Interval
(sec.)
10 3
10 3
10 60
10 60
10 180
10 180
20 3
20 3
20 60
20 60
20 180
20 180

Charging NiMH Batteries

Recharge the battery as follows.
1. Plug the charger into the electricity supply.
2. Plug the charger lead into the charging socket on the logger.
A full charge is typically delivered in less than 2 hours, maximum about 3 hours.
Indication of battery/charging status is provided by colored LEDs on the logger
(see p. 15).
The charger must not be used if the ambient temperature is below 10°C/50°F
DATAPAQ TP3
Logger Battery Life (hrs)
Temperature
No Radio
Telemetry
25°C/77°F –
70°C/158°F –
25°C/77°F 280
70°C/158°F 200
25°C/77°F –
70°C/158°F –
25°C/77°F –
70°C/158°F –
25°C/77°F 200
70°C/158°F 150
25°C/77°F –
70°C/158°F –
or over 40°C/104°F.
Radio
Telemetry Used
–
150
–
–
–
240
–
110
–
–
–
160
Specifications and Operation
21