SECTION 7.0 - SPECIFICATIONS FOR
BATTERY BACKUP
(SEE ALSO GENERAL SPECIFICATIONS FOR OVER-
ALL UNIT)
1. Batteries used: (2) Panasonic LCR12V 3.4P 12V, 3.4Ah
OR
(2) Powersonic Model PS-1230 l2Volt, 3.OAh
2. Startup voltage: 20.4V
Battery voltages below 20.4 volts indicate batteries
hooked up wrong or damaged batteries. Charger will
trickle charge at a rate of 10ma if it detects a battery
voltage of below 20.4V
3. Battery recharge time: About 8 hours
Recharge in 8 hours for completely discharged batteries,
shorter charge times for partially discharged batteries.
Indicator lights will switch from yellow to green when
charge cycle is complete.
4. Float voltage: About 29.3 volts
Float voltage is applied when green LED is ON (Figure
E), indicating charge is complete. Voltage to batteries
must be maintained between 29.0 and 29.7 volts during
float stage for maximum battery life.
5. Recharge voltage: 26.7 volts
If batteries are discharged below this voltage, charger
will go from float mode into bulk charge mode.
6. Typical battery service life: 2.5 to 3 years
Assuming battery storage/operation in 37°C incubator.
SECTION 8.0 - INTRODUCTION TO BATTERY
BACKUP
The Wheaton Battery Backup System is a factory installed
option which provides 24 hours of auxiliary power automatical-
ly to the roller apparatus should a primary power failure occur.
This integrated system consists of two sealed lead acid batter-
ies, an automatic charging system and an independent speed
control which can be preset to maintain standard bottle speeds
of 0.125 to 1.5 RPM during a primary power outage.
Model 4862 Cell Roller___________________________________________Specifications for Battery Backup / Introduction
8 - 1
