Iso-Tech IDM 97 Manuel D'instructions page 21

(4) Changing batteries
These meters are powered by two 1.5V batteries (97) or one 9V battery (97RMS). To change the batteries, see
Fig.2A and follow the instructions given below.
1. Remove the probes from the item being measured and switch the meter off. Unplug the leads from the input
terminal .
2. Lay the meter front-face-down on a work surface and unscrew the three screws in the bottom half of the case.
3. Carefully lever up the end of the bottom half of the case closest to the LCD display until it unclicks from the bottom
half.
4. Take the battery out of the top half of the case and carefully disconnect the battery connector from it.
5. Press the battery connector onto the new battery until it clicks home and fit the battery into the top half of the case.
Make sure that the battery connecting lead will not get caught between the top and bottom halves of the case.
6. Refit the bottom half of the case to the top half. See that all the seals are properly seated and that the two hooked
lugs are correctly engaged in the top half of the case. Screw the three screws back in.
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