EMS Model 1302 OPLC Opacity Monitor


Optional Weather Cover
with Air Purge

THE EMS 1302 OPLC Opacity Monitor Is a High Performance Opacity Monitoring System with Double-Pass Transmissometer. The stack mounting Transmissometer sensor system consists of an optical transceiver mounted on one side of the stack and a retro reflector mounted on the other. The main light source is electronically modulated and projects a collimated beam of light, which is split into a reference beam and a measurement beam. The measurement beam is projected across the stack to a retro reflector, which reflects it back across the stack to the measurement detector. The output of the measurement and reference detectors are transmitted to the control room mounted monitoring unit where all output signals are analyzed. T

EMS Model 1302 OPLC ratio-measurement technique provides continuous automatic compensation for variations in light source intensity to ensure prolonged instrument accuracy and stability. Since the Model 1302 OPLC is insensitive to the absolute intensity of the light source, it is not affected by light source aging.

SENSORS STANDARD FEATURES
ALIGNMENT VIEWING PORT - Enables the operator to visually check system alignment at anytime during operation.
DOUBLE PASS MEASUREMENT - Dual beam measurement assures high sensitivity, freedom from errors due to vibration or minor misalignment.
INSENSITIVE TO AMBIENT LIGHT - The solid-state light modulation system eliminates possible interference due to ambient light.
AUTOMATIC LAMP AGING COMPENSATION - A
ll measurements are made on a ratio basis and are thus are independent of the absolute intensity of the light source. LAMP EXPECTED LIFE – Field proven >7 years.
REMOAPPROVALS – CE and UL Listed

REMOTE CONTROL UNIT FEATURES
MODBUS – Supports Modbus proto
col OUTPUT – Two 4-20mA.
COMMUNICATIONS – 2 RS232/485 Ports (selectable)
MEMORY BACKUP – Battery 7 years typical
POWER – 12/24VDC
FIELD ADJUSTABLE
ALARMS – High opacity with time delay and Instantaneous early warning.

For availability and recommendations, please call us at 800.399.4236 or email a Sales Engineer.
Or click on the RFQ link to submit project details.