Casella-cel AFC123 Manual do Utilizador descarregar pdf (Página 6)

Casella USA

17 Old Nashua Road #15

Amherst, NH 03031

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.

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Casella-cel AFC123 Manual do Utilizador Página 6