Fuse Replacement; Spare Parts - Benning MM 9 Instrucciones De Servicio

9.4 Fuse replacement

Before opening the BENNING MM 9/ 10 make sure that it is

free of voltage! Electrical danger!
The BENNING MM 9/ 10 is protected against overload conditions by means of
a fitted fuse (G melt insert) 10 A (see Figure 12)
Proceed as follows to replace the fuse:
- Disconnect the safety measuring leads from the measuring circuit.
- Disconnect the safety measuring leads from the BENNING MM 9/10/.
- Turn the rotary switch  to the switch setting "OFF".
- Remove the rubber protection frame  from the BENNING MM 9/ 10.
- Lay the BENNING MM 9/ 10 face down and release the four slot screws of
the housing bottom.
Do not undo any screws on the printed circuit of the

BENNING MM 9/ 10!
- Lift up the housing bottom in the lower section and remove the same at the
top from the front section.
- Lift one end of the defective fuse from the fuse holder.
- Fully push the defective fuse out of the fuse holder.
- Insert a new fuse which has the same current rating, disconnecting charac-
teristic and dimensions.
- Make sure that the new fuse is seated centred in the holder.
- Order the battery supply lines such that they are not crushed between the
housing parts.
- Engage the front end on the housing bottom and fit the three screws.
- Insert the BENNING MM 9/ 10 into the rubber protection frame  .
see figure 12:
9.5 Calibration
To maintain the specified accuracy of the measurement results, the instrument
must be recalibrated at regular intervals by our factory service. We recommend
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 10 A, 500 V, 1.5 kA, D = 6.3 mm, L = 32 mm
10. Application of rubber protection frame
- You can store the safety measuring leads by winding the safety measuring
leads around the rubber protection frame  and engaging the tips of the
safety measuring leads with protection against the rubber protection frame
 (see figure 13).
- You can engage a safety measuring lead to the rubber protection frame
 , that the measuring tip protrudes freely, in order to be able to apply the
measuring tip - jointly with the BENNING MM 9/ 10 to a measuring point.
- The rear support on the rubber protection frame  provides for an inclined
setup of the BENNING MM 9/ 10 (facilitates reading) or attachment (see
Figure 14).
The rubber protection frame  is fitted with a lug which can be freely used
for an attachment option.
see figure 13:
see figure 14:
11. Technical data of the measuring accessories
- Standard: EN 61010-031,
- Maximum rated voltage to earth () and measuring category:
With push-on caps: 1000 V CAT III, 600 V CAT IV,
Without push-on caps: 1000 V CAT II,
- 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 leads if in perfect and clean condition as well as
according to this manual, since the protection provided could otherwise be
03/ 2011
Fuse replacement
Winding up of the safety measurement leads
Erecting the BENNING MM 9/ 10
BENNING MM 9/ 10

part no. 749726
19