PCME QAL 991Particulate 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

The instrument design permits up to 32 sensors to be connected to a

single central control unit. The control unit provides power for the

sensors and industry standard outputs are provided for easy connection

to plant control systems.

Highly Accurate Emissions Data The instrument’s automatic self-checks are extended to provide

zero, span and contamination tests which assess uncertainty and to

record results for later statistical analysis. This provides the

infrastructure for QAL3 tests according to EN-14181.

Satisfy QAL3 Requirements 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).

KEYBENEFITS

• Unaffected by contamination on the

sensor rod

• On-board Calculation and display of

the BTU index (gas calorific value, only

with syngas analysers)

• The results of the automatic upscale

(span) check can optionally be used

to compensate for the effects of any

contamination

• System self-checks, with logging of

Zero and Span check data for QAL3

reporting

QAL 991 is an approved Particulate Measurement System for

compliance monitoring “ “

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Cert No. 996ISO 9001

TECHNICALSPECIFICATION

TEMPERATURE • Temperature Range: Stack temperature 0-250oC

Stack temperature 0-400oC (option)

POWER • Output: RS-485/MODBUS to control unit

• Power: 24V DC (Provided by control unit)

• Process Conditions: Non-condensing

PHYSICAL • Insertion of interaction volume into stack: 15mm to

600mm (user adjustable)

• Minimum stack diameter: 250mm

• Ingress protection: IP65

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

CERTIFIED RANGES • Certification range: 0 -15mg/m3 (QAL1 approval)

• Extended certification range: 0-100mg/m3

(QAL1 approval)

• Measurement capability: 0-300mg/m3

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