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Instruction Manual
IM-105-4000, Original Issue
August 2005
OPM 4000
1-4
SPECIFICATIONS
OPM 4000 Specifications
Design and performance Meets or exceeds PS-1 revised and ASTM D6216-98
Peak and Mean Spectral
Response
Photopic; 515 to 585 nm, less than 10% of peak response
outside 400 to 700 nm
Relative Spectral Response <10%
Angle of View < 4.0
o
from optical axis
Angle of Projection < 4.0
o
from optical axis
Calibration Error/Accuracy ±1% of full scale
Response Time <10 seconds
Zero Drift <0.5%
Calibration Drift <0.5%
Operational Period In excess of PS-1 required 336 hrs
Zero/Span Calibration Manual or automatic with zero mirror and neutral density
filter
Remote control unit
Numeric Digital Display 5/8 in.
(15,9 mm), 4-digit LED
Selectable for instantaneous opacity, average opacity.
optional mg/m
3
Display Resolution 0.1% Opacity
Alphanumeric 8 character
LED (0.2 in.) Fault Display
Air purge low, No Stack Power, T2 4-20 Lost/low,
Maintenance Mode, Window Dust, Zero Cal Fail, Span Cal
Fail, Manual Cal.
Bargraph Left/Right: 51 segments LED 5.1 in. (129,5 mm) for
instant/average opacity. 20 segment LED 2.1 in. (53,3 mm)
for window dust and drift in % opacity.
Operator Indicating LED’s Run, Alarm, Operate, Cal in progress
High Opacity Set Point 0-100% of full scale
High Opacity Delay Adjustable 0-300 seconds
High Opacity Alarm Reset Automatic
Open Transistor Collector
Outputs
Four selectable
Dry Contacts Two selectable (option: two additional)
Instantaneous Opacity and
Average Outputs
4-20 mA grounded reference, 800 ohms max. (two
additional optional)
OPLR (Exit Correlation Lx /
2*Lt)
0.2 to 3.0
Cal Cycle initiate Local, remote and timed adjustable 1 to 24 hours
Enclosure NEMA 13, IP65, Height: 7.38 in. (187,5 mm) x Width: 3.00
in. (76,2 mm) x Depth: 7.75 in. (196,9 mm), Weight 6 lbs
(2,24 kg)
Ambient Temperature Range 32
o
to 122
o
F (0
o
to 50
o
C)
Power Requirements 120 VAC (±15%), 50/60 Hz, 22VA
Network Protocol: Modbus (ASCII or RTU mode), type RS-485,
optically isolated
Configuration Speed: 300-38,400 baud, type RS-232
Transceiver Service module
Display 5/8 inch (15,9 mm), 4-digit LED, selectable for % opacity
and % transmittance
Local Zero/Span Manual on demand
Test Jacks Transceiver to remote control current loop
Diagnostics Loss of power, current loop open, maintenance mode