14
GOSSEN-METRAWATT
Immunity to interference: Test according to IEC 801
The NAMUR industry standard EMC is met (Interface cables
shielded).
Permissible interference voltages
Default parameter setting
If individual parameter setting is not specified when ordering a
recorder, the LINAX 4000M is delivered with the following default
parameter setting:
All measuring channels with 0 ... 20 mA measuring range
Chart speed 1: 20 mm/h
Chart speed 2: 120 mm/h
Chart speed 3: Off
Limits are set to end positions (0 and 20 mA).
Attenuation of measured value, zoom, printer and limit func-
tions are switched off.
No password entered.
This default parameter setting can be re-initialized independent
of the actually set parameters.
Connection, case and installation
Electrical connections
Protection type IP 20
Screw-plug terminals for signal inputs, control inputs and limit
relay outputs
Max. wire cross section 2 x 1 mm
2
Screw terminals for line connection
Max. wire cross section 4 mm
2
RS-485 interface via 9-pin SUB-D plug
Case
Molded material for installation in panels or mechanical grids
(see dimensional drawing for dimensions)
Protection type of case according to DIN 40050
IP 54 for the front
IP 20 for the rear
Color of case
Silica-gray according to RAL 7032
Door of case
Molded material
Fastening of case
With 2 fasteners (optionally for installation in panel or mechani-
cal grid), centering angle brackets are required for installation
in mechanical grids, (Ordering Number A416A)
Position of use
Inclined to the side [–30
°
... 0 ... +30
°
]
Inclined to the rear 20°,
Inclined to the front 20°
Mounting distance
Horizontal or vertical 0 mm, it must be possible to open the
door of the case through 100°
Weight
3.5 kg, approx.
Type of test
Test severity
Variation
Severity level
ESD (1/30 ns)
6 kV
≤
1 %
3
HF field
Radiated 25 MHz ... 1 GHz
Line-guided 0.15 ... 80 MHz
10 V/m
10 V
≤
1 %
≤
1 %
3
3
Burst (5/50 ns) on
Power line
Test lead
2 kV
1 kV
≤
1 %
≤
1 %
3
3
Surge (1.2/50
µ
s) on
Power line
common
differential
2 kV
1 kV
≤
1 %
≤
1 %
3
2
1 MHz pulse on
Power line
common
differential
2 kV
1 kV
≤
1 %
≤
1 %
3
3
Perm. interference
voltage
Standard version
Universal version
Series mode interference
voltage peak-to-peak
≤
0.3
×
meas. span
max. 3 V
≤
3
×
meas. span
max. 3 V
Push-pull rejection
35 dB
35 dB
Common mode
interference voltage
60 V DC/42 V AC
60 V DC/42 V AC
Common mode rejection
70 dB
70 dB
