Fisher CZ-3D manual Battery Replacement

BATTERY REPLACEMENT

Check your batteries frequently by clicking the SENSITIVITY control counter clockwise into the BATT test position. The condition of the batteries will be indicated in two ways:

1)An Audio Tone. The stronger the better. A loud, high-pitched tone indicates good batteries. A weak, low-pitched tone indicates weak batteries.

2)A Meter Reading. Replace the batteries when the needle falls below gray BATT area. Two nine volt transistor batteries are located in a compartment at the rear of the housing. Always replace both batteries at the same time. You may also use rechargeable Nicads but expect about 1/2 the battery life of an alkaline battery.

1.Remove the battery door by loosening the two captive screws.

2.Tilt the housing slightly and the batteries will slide out.

3.Install the new batteries. Make sure the contact end goes in first and that you match the polarity markings on the battery door.

If either or both of the batteries are installed incorrectly, the CZ-3D will not turn on. The instrument will not be damaged.

4.Finger tighten the screws down snugly. Do not use a screwdriver or other hand tool.

Figure 9. BATTERY REPLACEMENT

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