10 TEGAM WAY • GENEVA, OHIO 44041 • 440-466-6100 • FAX 440-466-6110
•
4-4
MAINTENANCE
4.5
Calibration
CAUTION
DANGEROUS VOLTAGES ARE PRESENT DURING PARTS
OF THIS PROCEDURE.
1.
If the R1L-D1 rechargeable battery cells have not been
previously charged, or are low on charge, connect the
R1L-D1 AC line cord and allow a charge time of at least
one-half hour. The R1L-D1 "Battery Charging
"
LED (as
well as "AC Power" LED) should illuminate. Note: If the
R1L-D1 battery cells are being charged for the first time
or are heavily discharged, the R1L-D1 may switch into
trickle charge ("Battery Charging" LED goes out) during
the first fifteen minutes. If this happens, unplug the AC
line cord and then reconnect it. The "Battery Charging"
LED should re-illuminate and stay ON.
2.
Unplug the AC line cord from the R1L-D1 front panel.
Connect the Resistance Box to the R1L-D1. Connect the
10 Ω standard using 4-wire connection. Remove the R1L-
D1 front panel from the yellow case and turn it upside
down. Connect the AC line cord.
3.
Confirm the "Charging
"
LED is illuminated. Set the Digital
Multimeter to read DC volts, and connect its negative
lead to TP 104 (Circuit Ground). Connect the positive
Multimeter lead to TP 103. Verify a voltage reading
b0.25 and +0.27 V. Disconnect the R1L-D1 AC
line cord.
4.
Move the positive Multimeter lead to TP105 and turn the
R1L-D1 Power Switch ON. Verify a voltage reading
b4.8 and +5.2 V.
5.
Move the positive Multimeter lead to TP106 and verify a
voltage reading b4.8 and +5.2 V.
6.
Turn the R1L-D1 OFF. Insert the Nylon Insulator Strip
between one of the R1L-D1 battery cell's negative end
