Density Meter LB 444 SECTION 7. TECHNICAL DATA
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Inputs/Outputs:
Detector terminal:
EEx iB IIB
(2a/2c)
For inherently safe installation, the cable ends on the strip
terminal must be protected by a 10 mm long shrink plastic
tubing (see also the connection diagram)
3 digital inputs:
2 Dig. In. for external product selection (18a/18c and
20a/20c)
1 Dig. In. for external Start/Stop of the measurement:
Start/Stop in batch mode
Stop of continuous measurement
Restart after interruption of measurement due to interfer-
ing radiation.
Analog output:
0/4 - 20 mA isolated (max. 500 Ω) (26a+/26c-)
Limit value outputs:
2 relay outputs for max. / min. (12a/12c and 14a/14c)
1 relay output for collective failure message (16a/16c)
Loading capacity: 30 V AC, 1 A
Current input:
0/4 - 20 mA (28a-/28c+)
for input of the temperature signal or the volume current sig-
nals.
Interfaces:
RS 232 on the front panel of the instrument
Connection for data transfer from evaluation unit to printer or
PC.
Power supply
Power supply (28a/28c) depending on power supply unit
115V AC, 230V AC or 24 V DC (see label on rear panel of
instrument!).
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