10. How To Use The Protective Rubber Holster - PEWA BENNING MM 3 Notice D'emploi

- Turn the rotary switch  to the "OFF" position.
- Remove the protective rubber holster  from the BENNING MM 3.
- Place the BENNING MM 3 on its front side and remove the three screws
from the case back.
- Lift the end of the case back near the input terminals until it gently unsnaps
from the case front at the end nearest to the LCD display .
- Remove the empty battery from inside the case front and carefully
disconnect it from the battery connector leads.
- Snap the battery connector leads to the terminals of a new battery and
reinsert the battery into the case front. Ensure that the battery leads do not
become pinched between the case back and case front.
- Press the case back and case front together again and reinstall the three
screws.
- Place the BENNING MM 3 back into its protective rubber holster .
see Figure 11:
Please contribute to environmental protection! Batteries should

not be thrown into domestic refuse bins! They can be discarded
at collection points for old batteries or special refuse. Please
contact your municipality for more information.
9.4 Fuse replacement

Remove test leads and turn the power off before opening the
BENNING MM 3! Dangerous voltage!
The BENNING MM 3 is protected from overloading by a built-in 1 A (G-cartridge)
fast blow fuse and a built-in 16 A (G-cartridge) fast blow fuse (see figure 12).
This is how to replace the fuses:
- Remove the safety test leads from the measured circuit.
- Remove the safety test leads from the BENNING MM 3.
- Turn the rotary switch  to the "OFF" position.
- Remove the protective rubber holster  from the BENNING MM 3.
- Place the BENNING MM 3 on its front side and remove the three screws
from the case back.
- Lift the end of the case back near the input terminals until it gently unsnaps
from the case front at the end nearest to the LCD display .

Do not remove any screws from the printed circuit board of the
BENNING MM 3!
- Lift the printed circuit board from the front case.
- Gently pry one end of the defective fuse loose from the fuse holder.
- Then slide the defective fuse completely out of the fuse holder.
- Install a new fuse of the same rating, fast acting characteristic and size.
- Make sure the new fuse is centered in the fuse holder.
- Replace the printed circuit board into the case front.
- Ensure that the battery leads do not become pinched between the case
back and case front.
- Press the case back and case front together again and reinstall the three
screws.
- Place the BENNING MM 3 back into its protective rubber holster  again.
see Figure 12:
9.5 Calibration
To maintain the given accuracy of the measurement readings the instrument
must be regularly recalibrated by our service department. We recommend a
calibration interval of one year.

10. How to use the protective rubber holster

- The safety test leads can be stored by wrapping them around the protective
rubber holster  and then clipping the probes into the protective probe
holders on the rear of the holster  (see figure 13).
- A safety test lead can be clipped into the probe holder on the protective
rubber holster  with the test probe protruding, in order to apply the probe
together with the BENNING MM 3 to a measuring point .
- The rear tilt stand on the protective rubber holster  allows the
10/ 2004
Battery replacement
Fuse replacement
BENNING MM 3

17