ETS-Lindgren HI-4457 Isotropic Magnetic Field Probe (Archived) - Manual (Page 14)

HI n 4457 Manual Page — 9
4.0 BATTERY CHARGING
Introduction
Each HI n 4457 probe contains a rechargeable nickel-
cadmium (NiCd) battery. A fully-charged battery (nominal
output voltage of 3.6 VDC) provides up to 17 hours of
continuous operation.
NOTE
Holaday Industries, Inc., charges the internal NiCd
battery of the HI n 4457 at the factory in order to
calibrate the probe prior to shipment. While every
effort is made to ensure that your probe arrives ready
to use, we cannot guarantee that this will be the
case. Always check the condition of the probe's
battery prior to making any measurements. To check
probe battery voltage, refer to the operation of the
BAT keypad in Section 8.0 of the HI n 4416 User's
Manual.
Charging Procedure
Step 1. Plug the charger into a suitable AC source.
Step 2. Set the probe switch to OFF. Insert the plug
on the charger cable into the probe's
CHARGER jack.
Step 3. The battery is now charging. This may take
approximately 1 hour, depending on how
deeply the batteries are discharged. When
charging is complete, the charger
automatically goes into a trickle charge and
will continue to do so until the probe is
disconnected.
Archived 4/2/10