Battery Installation/Replacement - Wahl DST500-FM User Manual

4.4.4 If you have questions about grounding of the DST500-FM please contact
Wahl Instruments Customer Service as listed in section 9 of this manual.
4.5 Ventilation
4.5.1 The DST500-FM should be installed in an area of adequate air exchange
so that the specified ambient conditions are not exceeded.
5

Battery Installation/Replacement

! WARNING - Battery MUST be changed in the Unclassified Location
only.
The DST500-FM uses a single 3.6V Lithium Thionyl Chloride battery, Wahl P/N
DSA3060, (Tadiran TL-2200). Use of this battery is required for use in
hazardous locations as specified in section 3.1.
Lo battery is indicated by "LOW BATT" displaying in the lower right corner of the
display (Fig. 3). This indicates approximately 1-2 weeks of battery life left. The
battery should be replaced at this time. As the battery continues to drain "- - - - -
"will appear, indicating the battery is too low for an accurate measurement. The
battery must be replaced at this time. Battery life will vary dependent on Display
Update Rate Setting as shown in the Battery Life Table below.
5.1 For installation or replacement, loosen the four Phillips-head screws in the
front cover until the cover is removed. Note: The screws are held captive
by retaining washers and should not be removed completely.
5.2 Remove old battery and dispose of in accordance with local, state and
federal regulations.
5.3 Insert new battery, Wahl Catalog # DSA3060, with polarity as indicated on
battery holder. Positive terminal should be at the top of the PCB.
5.4 Replace cover on Digi-Stem enclosure and secure with four screws
tightened to a force of 4 to 5 in-lbs. of torque.
Battery Life Table
DST500-FM USER MANUAL
Fig. 3
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