4
•
Elapsed time range: 0 to 100 hours (resets to 0 after 100 hours)
•
Time keeping and data retention: > 10 years
•
Readout display: LCD 16 characters (4 mm height) x 2 lines
•
Serial interface: RS-232, 4,800 baud
•
Computer requirements: IBM-PC compatible, 486, Pentium, or higher,
Windows
™
’95 or higher,
≥
8 MB memory, hard disk drive, CD-ROM Drive,
VGA or higher resolution monitor
•
Outputs:
Real-time digital signal (1 sec
-1
): concentration, 16-character code, simplex
mode
Real-time analog signal: 0 to 5 V and 4 to 20 mA. Selectable full scale
ranges: 0-0.1, 0-0.4, 0-1.0, 0-4.0, 0-10, 0-40, 0-100, and 0-400 mg/m
3
.
Minimum load impedance for voltage output: 200 k
Ω
.
Maximum load impedance for current output: 300
Ω
(when powered by AC
power supply)
Alarm output: 1 Hz square wave, 5 V peak-to-peak amplitude. Load
impedance > 100 k
Ω
•
Internal battery: 9V alkaline, 20-hour run time (typical)
•
Current consumption: 15 to 25 mA (in Run Mode); 10 to 20 mA (in Ready
Mode)
•
AC source: universal voltage adapter (included) 100-250 V~, 50-60 Hz (CE
marked)
•
Optional battery pack: model
p
DR-BP, rechargeable NiMH, 72-hour run time
(typical)
•
Operating environment: -10
°
to 50
°
C (14
°
to 122
°
F), 10 to 95% RH, non-
condensing
•
Storage environment: -20
°
to 70
°
C (-4
°
to 158
°
F)
•
Dimensions (max. external):
Model
p
DR-1000AN: 153 mm (6.0 in) H x 92 mm (3.6 in) W x 63 mm (2.5
in) D
Model
p
DR-1200 (including cyclone and filter holder): 160 mm (6.3 in) H x
205 mm (8.1in) W x 60 mm (2.4 in) D
