Operation Manual
06/ 2011
BENNING MM 7-1
16
5.1.9 The yellow button
switches the display illumination on. To switch it off,
press the yellow key again.
5.1.10 The function key (blue)
serves to select the secondary or third func-
tion of the rotary switch position.
Switch position Function
Hz
→
Hz
→
ac+dc
→
→
ac+dc
Ω
Ω
→
→
→
Hz
→
→
ac+dc
→
Hz
→
→
ac+dc
°C
→
°F
5.1.11 The nominal measurement rate of the BENNING MM 7-1 is 3 measure-
ments per sec. for the digital display.
5.1.12 The BENNING MM 7-1 is switched on and off by the rotating switch
.
Switch-off position “OFF”.
5.1.13 The BENNING MM 7-1 switches off automatically after approx. 20
minutes (APO, Auto-Power-Off). It switches back on again when the
HOLD key (or another) is pressed. Deactivate the automatic switch-off
by pressing the function key (blue)
and simultaneously switching the
BENNING MM 7-1 ON from the switch position “OFF”.
5.1.14 Check the segments of the digital display by pressing the “Smart
HOLD” key
and simultaneously switching the BENNING MM 7-1 ON
from the switch position “OFF”.
5.1.15 Temperature coefficient of measurement value: 0.15 x (stated meas-
urement accuracy)/ °C < 18 °C or > 28 °C relative to the value at the
reference temperature of 23 °C.
5.1.16 The BENNING MM 7-1 is powered by one 9-V block battery (IEC 6 LR 61).
5.1.17 The battery display
permanently shows the remaining battery capac-
ity over a maximum 3 segments.
As soon as all segments in the battery symbol have gone off
and the battery symbol blinks please exchange the battery for
a new battery immediately in order to avoid a risk through false
measurements for people.
5.1.18 The life span of a battery is approx. 180 hours (alkali battery).
5.1.19 Appliance dimensions:
(L x W x H) = 180 x 88 x 33.5 mm without protective rubber holster
(L x W x H) = 190 x 94 x 48 mm with protective rubber holster
Weight:
320 g without protective rubber holster
460 g with protective rubber holster
5.1.20 The safety measuring leads are expressly suitable for the rated voltage
and power of the BENNING MM 7-1.
5.1.21 The BENNING MM 7-1 is protected against mechanical damage by a
protective rubber holster
. The protective rubber holster
makes
it possible to suspend the BENNING MM 7-1 during the measuring
process or to stand it upright.
6. Ambient conditions
- The BENNING MM 7-1 is designed only for measuring in dry surroundings,
- Maximum barometric height during measurement: 2000 m.
- Overvoltage category / setting category: IEC 60664/ IEC 61010-1 → 600 V
cate gory IV; 1000 V category III.
- Degree of contamination: 2.
- Protection class: IP 30 (DIN VDE 0470-1 IEC/ EN 60529).
IP 30 means: Protection against access to dangerous parts and protection
against solid impurities of a diameter > 2.5 mm, (3 - first index). No protec-
tion against water, (0 - second index).
- Operating temperature and relative humidity:
At operating temperatures of 0 °C to 30 °C: relative humidity under 80 %.
At operating temperatures of 30 °C to 40 °C: relative humidity under 75 %.