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GMC-I Gossen-Metrawatt GmbH
27
GB
Interface
Type
RS232C, serial, per DIN 19241
Data Transmission
optical with infrared light through housing
Baud Rate
8192 bit/s
Ambient Conditions
Operating Temp.
−
20
°
C ... + 50
°
C
Storage Temp.
−
25
°
C ... + 70
°
C (without battery)
Relative Humidity
≤
75 %, no condensation allowed
Elevation
to 2000 m
Deployment
indoors,
outdoors: only in the specified ambient
conditions
Mechanical Design
dimensions
84 mm x 195 mm x 35 mm
weight
approx. 0.35 kg with battery
Protection
IP 50
Extract from table on the meaning of IP codes
18
Maintenance
Caution!
!
The instrument must be disconnected the from the measuring
circuit before opening to replace the battery!
18.1 Battery
Before initial start-up, or after your instrument has been in storage,
make sure that no battery leakage has occurred, and inspect for
battery leakage on a regular basis.
If battery leakage has occurred, the electrolyte must be completely
removed with a damp cloth and a new battery must be installed,
before the instrument is placed back into service.
If the
symbol (18) is displayed at the LCD, the battery should be
replaced as soon as possible. You can continue to take measure-
ments, but the accuracy of the instrument may be negatively influ-
enced.
The instrument is powered by a 9 V flat cell battery in accordance
with IEC 6 LR 61. Use only alkali-manganese cells which comply
with IEC 6 LR61.
Replacing the Battery
➭
Lay the instrument onto its face, loosen the two screws at the
rear panel and lift out the housing base, starting at the bottom (a).
The housing base and housing top are held together with snap
hooks at the top of the front panel.
➭
Remove the battery from the battery compartment and carefully
pull the battery from the terminal contacts.
➭
Snap the terminal contacts onto a new 9 V battery and insert the
battery into the battery compartment.
➭
Important for reassembly: First lay the housing base into place as
shown in the diagram below. Push the housing base and housing
top together, first at the bottom front (a) and then at the top front (b).
IP XY
(1
st
digit X)
Protection against
foreign object entry
IP XY
(2
nd
digit Y)
Protection against the
penetration of water
0
not protected
0
not protected
1
≥
50.0 mm
∅
1
vertically falling drops
2
≥
12.5 mm
∅
2
vertically falling drops
with enclosure tilted 15
°
3
≥
2.5 mm
∅
3
spraying water
4
≥
1.0 mm
∅
4
splashing water
5
dust protected
5
water jets