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3.2.11 Operation
The Model 501-B is equipped with a 12 V DC Ni-Metal-Hydride rechargeable battery (refer to pg. 4
Figure 1). Newer models (May 2004 or later Model) are also equipped with an AC Adapter/External
Battery jack that can be connected to the provided AC Adapter (12VDC output) or any 12VDC
battery.
I.
Internal Battery operation:
1. (For May 2004 or later Models only) The Power Source switch on the left panel must
be set at "INT BAT" position.
2. With the internal battery connected, set the Function Switch (1) at the "On" position.
3. Adjust the dilution LED indicator to (6) "green" position (OK) using the dilution-adjust
knob (11).
4. Set the Compressor Switch (2) at the "ON" position to turn on the compressor.
5. Under normal conditions, the battery should supply several hours of operation. The
battery should be recharged when it fails to maintain its proper function.
recommended that the battery should be charged the night before any testing. To
conserve battery, turn off either the compressor or the whole system at the end of
each test.
6. DO NOT CONTINUE to use the analyzer when the battery is depleted.
II. External Power operation (For May 2004 or later Models only):
1. Connect the provided AC Adapter (12VDC output) or any 12VDC battery to the "AC
Adapter/Ext Battery" jack located on the left panel.
2. Set the Power Source switch to the "EXT Power" position.
3. Set the Function Switch (1) at the "On" position.
4. Repeat procedures 4-5 above.
II. Internal NiMH Battery Charging:
1. (For May 2004 or later Models) Set the Power Source switch to "INT BAT" position.
2. Set the Function Switch (red) (1) on the top panel to the "BATTERY RECHARGE"
(bottom) position.
3. Connect the lead from the NiMH charger to the "Recharge Input" jack on the left-
side panel.
4. Plug the charger into a 110 V AC power source.
5. A yellow (fast charge) light will illuminate on the charger when it is connected.
6. While charging, the battery and charger may become warm. This is a normal
condition.
7. A green (float) light will illuminate on the charger when the battery is fully charged
and ONLY when it has been charging for 10 consecutive hours. Disconnecting and
reconnecting the charger will reset the timer inside the charger.
8. If a battery does not charge properly:
NOTE: Since battery power depletes over time even when it's not used, only
INT BAT
AC Adapter
Ext Battery
EXT Power
a) Check current at receptacle by plugging in a lamp or other appliance.
b) Check to see if the receptacle is connected to a light switch, which turns
power off when you turn off the lights.
c) Check to make sure the Function Switch is set at the "Battery Recharge"
position.
charge the battery the night before any testing.
7
It is
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