3M C860, Руководство пользователя

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C-Series Intercom Systems
Model C960
Technical Bulletin 4/15/98
C960/C860 B
ATTERY
F
ACTS
•
The battery for the C960/860 is a 1.25 Volt, 1200 milli-Amp hour, nickel metal-hydride cell in a plastic case. Inside
the case with the cell is a thermostat and 2 contacts.
•
Average battery life = 4 ½ to 6 hours.
•
The low battery tone from headset will sound when the battery reaches 1 volt.
•
A battery fresh from the charger is typically 1.5 volts then settles to about 1.4 volts after an hour.
•
The contacts of an empty battery charger will measure approximately 20 VDC.
•
Recharge time is about 2 hours; 3 ½ hours to both condition and recharge a battery.
•
Typically you should expect at least 1000 charge/discharge cycles.
•
The battery is considered by the industry to be worn out when its capacity decreases to 80% of rated capacity. This is
also applicable to use time. When a battery only provides a charge life of 80% of original, the industry says it's worn
out.
•
3M does accept warranty claims for defective thermostats.
•
To test for a defective thermostat, plug the battery into a known good charger. If the contacts are good and the
charger LED does not light, the thermostat is bad.
•
Batteries are warranted for six months from date of shipment to the end user and covers defects in manufacture. A
four digit code is stamped on one end denoting the week and year of manufacture (4897 would indicate the 48th week
of 1997). 3M does not accept warranty claims for short life, broken batteries, damaged contacts, or claims traceable
to damage
Reminder: To troubleshoot batteries effectively you should use the optional analyzer. It will condition the battery in the
left-most slot (as viewed from the front), removing any "memory problems" that it may have. You have a choice of
determining how many times it charges/discharges the battery (1 through 4) or you can allow it to operate
"automatically.” At the end of the total cycle, it will leave the battery in a charged condition and display the capacity
of the battery in terms of "milli-Amp hours". (A capacity rating of how many hours the battery can supply one milli-
Ampere of current).
Ordering Information
The unit is identified as "3M Battery Analyzer Model DA801M" and the price is $125 each.
To order one, please contact:
Specialty Engineering, Inc.
1403 S. Harrison St.
Mason City, IA 50401
(515) 424-5305
3
Food Services Trade Department
3M Center, Building 551-1E-02 © 3M 1998 19980415
St. Paul, MN 55144-1000