Tianlan system integration / Thermo Scientific analyser

Extractive NH₃

Extractive Ammonia Analysis

Bring ammonia-slip measurement into the SCR operating picture through extractive sampling and chemiluminescence analysis.

Measures: NH₃
Principle: Extractive chemiluminescence
Manufacturer: Tianlan system integration / Thermo Scientific analyser

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Extractive Ammonia Analysis — Thermo Scientific 17i · Analysis component in the supplied SCR solution

Online ammonia measurement

The supplied SCR presentation includes a Thermo Scientific 17i ammonia analyser within the monitoring system. It is a third-party analysis component, not a TURELINE-manufactured instrument.

Review the sampling point and heated transfer conditions.
Coordinate NH₃ measurement with NOₓ monitoring and plant-control signals.
Include calibration, background gases and maintenance access in the system design.

System integration

The total response depends on the analyser settings, sampling line and conditioning arrangement. Specify response requirements for the complete sample path rather than describing the system as delay-free.

17i analyser specifications

Third-party analysis component — supplied SCR presentation, slide 17
Preset concentration spans	0–0.05, 0–0.1, 0–0.2, 0–0.5, 0–1, 0–2, 0–5, 0–10 or 0–20 ppm
Zero noise	0.50 ppb RMS with 60-second averaging
Listed minimum detection limit	1.0 ppb with 60-second averaging
Response time	120 seconds with 10-second averaging
Linearity	±1% of span
Listed precision	±0.4 ppb at a 500 ppb span
Zero drift over 24 hours	<1 ppb
Span drift over 24 hours	±1% of full scale
Ambient operating temperature	15–35 °C
Standard sample flow	0.6 L/min

Conversion and integration

Sampling arrangement on slide 16; interfaces on slide 17
Ammonia conversion	A catalytic converter heated to 750 °C oxidises NH₃ to NO; NH₃ is derived from total converted nitrogen minus NOₓ
Described sampling configuration	Dilution probe with the total-nitrogen converter in the probe enclosure and a 17i analysis unit
Analogue output options	Voltage; optional isolated 0–20 or 4–20 mA
Digital interface options	RS-232, RS-485 and TCP/IP
Status outputs	Ten status relays and power-failure indication
Listed supply options	100 V AC, 115 V AC or 220–240 V AC ±10%
Listed power consumption	300 W analyser; 600 W converter

Technical enquiry

Ask the team for the current technical data sheet and application-specific configuration.

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