Cleveland Controls A-08740 0 Series User Manual

8 • OPACITY MONITOR MANUAL IM-A-08740-05 •
1.2 Specications
Power requirements:120 V ac ± 10%, 50/60 Hz.
Ambient temperature ranges: 32–130 ºF (0-54 ºC) for electronics unit. 32–160 ºF (0-70 ºC) for light source and
receiver units.
Fuse: One, @ 1 Amp.
Measurement range: 0 to 100% opacity.
Retransmit Output range: 4-20 mA dc, 750 Ohms maximum load. Directly proportional to measurement range,
where 4 mA = 0% and 20 mA = 100%. Output is grounded (not isolated.)
Resolution: Digital meter reads 0-100% opacity with 1% resolution.
Response time: 1 second for 90% of actual change in opacity.
Accuracy: ± 5% opacity under all specied operating conditions.
LED light source to receiver distance: minimum 4 ft. (1.20 m.), to maximum 15 ft. (4.57 m.).
LED light source lamp life: 1 year minimum.
Spectral response of photocell: 350–1100 nM.
Cable length: 250 ft. (76 m.) maximum.
Indicators:
Green: “Clear” LED.
Yellow: “Smoke” LED and flashing display.
Red: “Alarm” LED and flashing display.
Alarm timer: adjustable 0-300 second delay.
Alarm trip point: adjustable 0-99% opacity.
Alarm reset: automatic; eld-convertible to manual.
Alarm contacts: isolated SPDT, 10 Amp, 120 V ac resistive, fail safe.
Purge Delay timer: adjustable 1-600 second delay.
NYC Burner Cutoff (optional): xed 20% trip point and xed 2-minute (120-second) delay.
NYC Burner Cutoff contacts: isolated SPDT, 10 Amp, 120 V ac resistive, fail safe.
Overre air timer (optional): maintains contact closure after smoke abatement for a period adjustable
from 1-300 seconds.
Overre air contacts: isolated SPDT, 10 amp, 120 V ac resistive, fail safe.
Housing for enclosed models: NEMA 1.
Relative Humidity: 0-90%, non-condensing.
Modbus Communication: RTU. 9600 or 19200 Baud rate. N/8/1 (no parity, 8 data bits, 1 stop bit).
Printer port: RS232 serial port, DB9-M connector, 9600 baud, N81 (no parity, 8 data bits, 1 stop bit).
Output adjustable, generated every 0-60 minutes, where 0 = disabled.
Output format: 5 sequence #, blank space, 3 digit opacity, “%” symbol, carriage return, line feed.
Example: 01234 011% c/r l/f
Shipping Weight: varies with options; these are typical:
Electronics units in enclosures are 7.5-8.5 lbs.
Open-mounted electronics units are 6.5-8.0 lbs.
Light source and receiver, combined, 9 lbs.
Approvals: NYC DEP. UL & CUL pending.
SPECIFICATIONS ARE SUBJECT TO CHANGE.

Cleveland Controls A-08740 0 Series Specifications

General

Brand	Cleveland Controls
Model	A-08740 0 Series
Category	Measuring Instruments
Language	English