1. PCME QAL 991
Particulate Monitoring System
The PCME QAL 991 is an approved
Particulate CEM (Continuous Emission
Monitor) designed to meet and exceed CEN
standard EN 14181 / EN 13284-2
KEYBENEFITS
The instrument design permits up to 32 sensors to be connected to a
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sensors and industry standard outputs are provided for easy connection
single central control unit. The control unit provides power for the
Unaffected by contamination on the
to plant control systems.
sensor rod
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Highly Accurate Emissions Data
the BTU index (gas calorific value, only
The instrument’s automatic self-checks are extended to provide
with syngas analysers)
zero, span and contamination tests which assess uncertainty and to
The results of the automatic upscale
record results for later statistical analysis. This provides the
(span) check can optionally be used
infrastructure for QAL3 tests according to EN-14181.
to compensate for the effects of any
Satisfy QAL3 Requirements
contamination
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System self-checks, with logging of
Zero and Span check data for QAL3
reporting
Optional PC software ‘QAL Reporter’ provides secure emissions and
QAL3 reporting. It includes the statistical treatment of the zero and span
results for the user to demonstrate that the instrument is operating
according to defined specifications (uncertainty).
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QAL 991 is an approved
Particulate Measurement System for
compliance monitoring
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On-board Calculation and display of

2. TECHNICALSPECIFICATION
TEMPERATURE
• Temperature Range: Stack temperature 0-250oC
Stack temperature 0-400oC (option)
SPAN & DRIFT
• Long term zero drift: <0.1mg/m3.
• ELV Range (Emission Limit Value): 0 - 10 mg/m3 to 0 - 100
mg/m3
• Minimum Detection Level: <0.1 mg/m3
• Resolution: 0.01 mg/m3
POWER
• Output: RS-485/MODBUS to control unit
• Power: 24V DC (Provided by control unit)
• Process Conditions: Non-condensing
CERTIFIED RANGES
• Certification range: 0 -15mg/m3 (QAL1 approval)
• Extended certification range: 0-100mg/m3
(QAL1 approval)
• Measurement capability: 0-300mg/m3
PHYSICAL
• Insertion of interaction volume into stack: 15mm to
600mm (user adjustable)
• Minimum stack diameter: 250mm
• Ingress protection: IP65
Complete Project Solutions
Our complete project solutions are developed to assist you
in IED compliance. We achieve this through;
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Expert consultancy
Project management
In-house project design & build
Installation & commissioning
After product service & support
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