10 TEGAM WAY • GENEVA, OHIO 44041 • 440-466-6100 • FAX 440-466-6110
2-2
PREPARATION FOR USE AND INSTALLATION
polarity indications marked on both the battery cell and the
battery holder. Insert the positive end of the battery cells
first.
After installing the cells, reinstall the instrument in its case and
secure the ten screws.
Power Up
Plug the power cord into the R1L-BIR1 front panel receptacle,
and plug the other end into a standard AC outlet. For battery
operation (with charged battery cells), this step is omitted.
Turn on the POWER rotary switch. Note that this switch turns
on both line and battery power.
Charging the Battery Cells
Prior to battery operation, it is recommended the R1L-BIR1
Microohm/Bond Meter be plugged into AC power for at least
14 hours to charge the battery cells. To charge the battery
cells, the Power Switch must be turned ON, and the Range
Switch should be set to 20
Ω
. With the Range Switch set to
lower ranges, the charge rate decreases and the batteries will
be discharged, especially on the 2
mΩ
range, even with no
resistance connected to the instrument. (However, the
discharge rate in this range will permit operation for at least
14 hours with no resistance connected.)
WARNING
ALTHOUGH THE FRONT PANEL IS NORMALLY GROUNDED
VIA THE GROUND PIN OF THE POWER CABLE, IF THIS
CONNECTION IS FAULTY AND IF THE HIGH SIDE OF THE
POWER CABLE IS SHORTED TO THE PANEL, THE PANEL
COULD POSSIBLY HAVE MAINS VOLTAGE ON IT; SO DO
NOT TOUCH THE PANEL WHEN AC POWER IS CONNECTED.