LUDLUM 272D, User Manual

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Model 272D Digital Remote
February 2016
page 2
3. SPECIFICATIONS
INDICATED USE:
remote display for Model 375 Area Monitor
DISPLAY: 0.0 to 9999 or 0.00 to 9999 (same as connected Model 375)
SYSTEM OK: ( green light ) indicates the instrument is functioning properly
HIGH ALARM: ( red LED ) indicates the radiation level exceeds the high alarm point
LOW ALARM: ( yellow LED ) indicates the radiation level exceeds the low alarm point
RESET: pushbutton to reset the alarm condition
DET FAIL: ( red LED ) indicates detector overload, no count from detector, or communication
failure
RELAY: 3-pin connector and form C relay allowing for external alarm indicators
AUDIO: unimorph type with Audio Enable ON/OFF switch ( greater than 68 dB at 2 feet)
POWER: provided by wall-mount adapter, 5.0 Vdc ( regulated)
Warning!
If not using the wall-mount power supply that is provided, be sure to fuse the input voltage
using a 1 amp fuse.
CONSTRUCTION: Aluminum housing with ivory powder coat
TEMPERATURE RANGE:
-20 to 50
°
C (-4 to 122
°
F); m
ay be certified for operation
from -40 to 65 °
C (-40 to 150
°
F)
SIZE: 16.8 x 20.3 x 4 cm (6.6 x 8 x 1.6 in.) (H x W x D)
WEIGHT: 0.68 kg (1.5 lb)
4. ENVIRONMENTAL CONDITIONS FOR NORMAL USE
Indoor use only
No maximum altitude
Temperature range of -20
to 50 °
C (-4
to 122 °
F)
; may be certified for operation from -40 to 65 °
C
(-40
to 150 °
F)
Maximum relative humidity of less than 95% (non-condensing)
Installation Category II (Overvoltage Category as defined by IEC 1010-1)
Pollution Degree 1 (as defined by IEC 664) (No pollution or only dry, nonconductive pollution
occurs. The pollution has no effect.)