Spare Parts; How To Use The Protective Rubber Holster; Technical Data Of The Measuring Accessories - Benning MM 2 Manuel De Instrucciones

(G-cartridge) fast blow fuse and a built-in 16 A (G-cartridge) fast blow fuse
(see figure 10).
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 2.
- Turn the rotary switch  to the "OFF" position.
- Remove the protective rubber holster  from the BENNING MM 2.
- Place the BENNING MM 2 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 2!
- 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 2 back into its protective rubber holster  .
see Figure 10:
9.5 Calibration
To maintain the specified precision of the measurement results, the instrument
must be recalibrated at regular intervals by our factory service. We recom-
mend a recalibration interval of one year. Send the appliance to the following
address:
Benning Elektrotechnik & Elektronik GmbH & CO. KG
Service Centre
Robert-Bosch-Str. 20
D - 46397 Bocholt

9.6 Spare parts

Fuse F 16 A, 500 V, D = 6.35 mm, L = 32 mm, P.no. 749770
Fuse F 1 A, 500 V, D = 6.35 mm, L = 32 mm, P.no. 749769

10. How to use the protective rubber holster

- The safety test leads can be stored by wrapping them around the protec-
tive rubber holster  and then clipping the probes into the protective probe
holders on the rear of the holster  (see figure 11).
- 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 2 to a measuring point .
- The rear tilt stand on the protective rubber holster  allows the
BENNING MM 2 to be placed standing upright (for easier display reading)
or hung up (see figure 12).
- The protective rubber holster  can also be hung on a nail if so desired.
see Figure 11:
see Figure 12:

11. Technical data of the measuring accessories

4 mm Safety measuring cable ATL 2
- Standard: EN 61010-031,
- Maximum rated voltage to earth ( ) and measuring category: 1000 V
CAT III, 600 V CAT IV,
- Maximum rated current: 10 A,
- Protective class II (  ), continuous double or reinforced insulation,
- Contamination class: 2,
- Length: 1.4 m, AWG 18,
- Environmental conditions:
Maximum barometric elevation for making measurements: 2000 m,
Temperatures: 0 °C to + 50 °C, humidity 50 % to 80 %
- Only use the measuring cables if in perfect condition and according to this
manual, since the protection provided could otherwise be impaired.
- Throw the measuring cable out if the insulation is damaged or if there is a
break in the cable/ plug.
08/ 2008
Fuse replacement
Wrapping up the safety test leads
Standing up the BENNING MM 2
BENNING MM 2

15