Maintenance and servicing, Service department – Casella CEL AFC123 User Manual
Page 6
Casella USA
17 Old Nashua Road #15
Amherst, NH 03031
Email
Web
www.casellausa.com
TF (800) 366-2966
AFC123
Personal
Sampler.
Page
6
Handbook No. HB3182-02 Issue2/JULY 1994
4.
Maintenance and Servicing.
7.1. Service
Department.
Casella's in house service department offers a comprehensive range of repair
and calibration services, designed to effect a fast and efficient back-up for
all our products. The Service Department is operated under the scope of our
BSI registration for products manufactured by us. We will however,
undertake the repair of other manufacturers equipment.
For further information please contact our Service Department at our
Bedford premises. We will be happy to provide quotations for individual
repairs or provide annual maintenance under contract.
Battery.
If the flow rate normally found throughout accustomed head cannot be
maintained for a given time then check that:
1. If filter disc is used, is resistance too high? High dust levels, high relative
humidity, too small a pore size, may plug the filter after a few hours.
Replace with clean filter. If now satisfactory change disc more often.
2. Battery maybe at the end of its service life. To check:- charge the battery
for 14 hours, disconnect the battery from the charger and discharge through
a 27 ohm resistor
rated at 2 watts or more to 4.4 volts (approximately 51/2 hours). Repeat
charge/
discharge twice. If 177mA cannot be produced for 51/2 hours, discard the
battery as it is beyond useful life.