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Teledyne 3350 - Microprocessor based control room monitor for personnel safety User Manual

Page 36

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5-4

5 Maintenance

Model 3350

Teledyne Analytical Instruments

5.2.4 Installing a Micro-Fuel Cell

To install a new Micro-Fuel Cell:

CAUTION: Do not scratch, puncture, or damage the sensing membrane of the

Micro-Fuel Cell sensor. Damage to the membrane will require
replacement of the sensor.

To install the new cell:

1. Remove probe assembly from the probe holder.

2. Unscrew the cap from the top of the probe assembly.

3. Place the cell in the probe with the terminal end of the cell facing

down towards the probe contacts.

4. Replace the probe cap.

5.2.5 Cell Warranty Conditions

The Class B-3 Micro-Fuel cell is used in the Model 3350. This cell is a

long life cell and is warranted for 12 Months (under specified operating condi-
tions—see Appendix) from the date of shipment. Note any Addenda attached to
the front of this manual for special information applying to your instrument.

With regard to spare cells, 12 month shelf life warranty period begins on

the date of shipment. The customer should stock only one spare cell per instru-
ment at a time. Do not attempt to stockpile spare cells.

If a cell was working satisfactorily, but ceases to function before the

warranty period expires, the customer will receive credit toward the purchase of
a new cell.

If you have a warranty claim, you must return the cell in question to the

factory for evaluation. If it is determined that failure is due to faulty workmanship
or material, the cell will be replaced at no cost to the customer.

NOTE: Evidence of damage due to tampering or mishandling will render the

cell warranty null and void.