10.1 Evaluation Unit LB 442
84
Section 10 Technical Data
10.1 Evaluation Unit LB 442
Versions: LB 442-1 Master system
LB 442-2 Slave system for detector connection to
multi-detector configurations. Signal transfer to mas-
ter system via RS 485
Assembly: 19" module 3 HE, 21 TE; Protection type IP 20
Power supply: 115 V ± 10% AC
230 V ± 10% AC
18 to 32 V DC
24 VAC
Observe label on instrument backpanel.
Power consumption: approx. 30 VA or 30 W
Temperature range: Version 19“ frame
Operating temperature: 0 to +50 °C; no condensation
Version Wall Housing LB4460
Operating temperature: 0 - 40 °C; no condensation
Storage temperature: -40 to +70 °C
CPU: 32 bit computer.
Data storage in FLASH memory.
Weight: approx. 2 kg
Display: LCD display with 4 x 20 characters, illuminated.
Data input via keyboard.
Softkey guided dialog,
Languages: German, English, French and Spanish.
Data manipulation possible only after password entry.
Interfaces: RS 232 and RS 485
Time constant: 0.5 - 999 s with automatic reduction to 1/10 of the
value in case of rapid measured value changes (can
be switched off). Trigger threshold for time constant
switch-over adjustable.
Decay comp.: Automatic for
137
Cs,
60
Co,.
241
Am,
85
Kr,
244
Cm,
90
Sr
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