Name: Probe Style Tunable Diode Laser Spectrometer TDLS8100/TDLS8200
Brand: Yokogawa
SKU: probe-type-tunable-diode-laser-spectrometer-tdls

The TDLS Probe brings all the industry-leading combustion features into a single-flange explosion-proof device for measuring oxygen, CO, and methane. Whether it's being used for oxygen trim control, CO monitoring, high combustible fuel runback control, or even a SIL2-rated startup permissive for methane, the TDLS Probe Type is capable of providing measurements for all of these functions in a single device.

What Are the Benefits of the TDLS Probe?

Reduced Installation and Maintenance Costs

Single-flange design allows for installations where cross-duct TDLS technology was not feasible due to obstructions or accessibility issues
Capability to make O₂ + CO/CH₄ Measurements with a single device up to 850°C
Onboard diagnostics with 50 days of data and spectral storage ensure that minor issues can be identified before they become more serious problems
Explosionproof/flameproof for installation in CID1/Z1 or CID2/Z2 areas
HART and Modbus TCP come standard to maximize remote diagnostics and configuration capabilities with a single cable run

Reliability

Reference Cell
Internal reference cell in the laser/detector module ensures peak locking
Auto-gain
Auto-gain enables a wide signal range during dynamic process events

Validation
Initiated manually, remotely, or automatically on a daily, weekly or monthly basis defined by the user
SIL2 Certified
IEC61508 SIL designed & approved, SIL2 capability for single analyzer use, SIL3 capability for dual analyzer use.

System Configuration

Standard Configuration with Remote YH8000 HMI

Connect up to 4 analyzers simultaneously
Can be used with TDLS8000 and/or TDLS8100/8200 probe

Gas Sample Probe

Standard Configuration with DTM/DD Devices

Connectable with FieldMate or other DTM/DD compatible device management software using HART communication.
Mini Display on Analyzer Head

Seamless User Interface

Intuitive 7.5 inch color LCD Touch Screen

Straightforward Operation
Displays all configuration settings and trend information
Eliminates the need for a separate maintenance PC
Can be installed remotely

Structural Features

Single flange design reduces total installed cost

Ideal for smaller fired assets or installation points where clear aperture cannot be achieved
Reduced overall installed cost for additional nozzles, alignment services, or platform installation

Replacing of existing extractive gas sampling analyzer

Reduced overall maintenance demand with no consumables and negligible drift (eliminates calibration)
In-situ measurement removes sample lag time

Replace of extractive gas sampling analyzer

Fired Heater Combustion Safety and Lifecycle Management

Fired Heater Combustion Safety and Lifecycle Management Yokogawa's TDLS combustion measurements provide reliable information to achieve:

An in-situ measurement that removes sample lag time
A solid-state technology with no consumables, negligible drift (eliminates calibration), and is not an ignition source
A SIL2 rated measurement output for safety systems with T100 in 2.4 seconds
A reliable averaging CH4 measurement can ensure startup safety, and CO can be used to reliably control O2 down to CO breakthrough levels

Standard Specifications

Measurement object	O₂, CO, CO/CH₄, O2+CO/CH4, NH₃, HCl
Measurement system	Tunable diode laser spectroscopy
Measured components and range	Measured component		Min. range	Max. range
	O₂		0-1%	0-25%
	CO(ppm)		0-200 ppm	0-10,000 ppm
	CO+CH₄	CO	0-200 ppm	0-10,000 ppm
	CO+CH₄	CH₄	0-5 %
	NH₃		0-30 ppm	0-50,000 ppm
	HCl		0-50 ppm	0-5,000 ppm
Probe Length	0.7m, 1.0m, 1.5m, and 2.0m
Output signal (Analog Output)	2 or 5 points (TDLS8100/TDLS8200), 4 to 20 mA DC Output types; Gas 1 concentration, Gas 2 concentration, Gas 3 concentration, Transmission, Process gas temperature, Process gas pressure Output range; 3.0 to 21.6 mA DC
Digital communication	HART, Ethernet
Contact outputs (Digital Output)	2 points, contact rating 24 V DC, 1 A DO; Function: Activate during Warning / Calibration / Validation / Warm up / Maintenance conditions Fault; Function: Activate during normal condition, not activate during fault condition or when the system power is off
Valve control output	2 points Function; Activate calibration or validation solenoid valves for zero, span or validation gas Output signal; 24 V DC, 500 mA Max. per terminal
Alarm	Warning; Gas concentration low/high, Transmission low, Process pressure low/high, Process temperature low/high, Validation required, Validation failure, Zero/Span calibration error, Non process alarm, External alarm Fault; Laser module temperature low/high, Laser temperature low/high, Detector signal high, Peak center out of range, Reference peak height low, Absorption too high, Transmission lost, Reference transmission low, Reference peak height high, Laser unit failure, Laser module error, File access error, E2PROM access error.
Contact inputs (Digital input)	2 points Function; External alarm/Calibration start/Validation start/Stream switch Contact specification; Zero voltage contact input Input signal; Open signal; 100 kΩ or more, Close signal; 200 Ω or less
Input signal (Analog input)	2 points, 4 to 24 mA DC Input types; Process gas temperature, Process gas pressure
Self-diagnostics	Laser Unit temperature, Sensor Control Unit temperature, Laser temperature, Detector signal level, Memory read/write function, Peak locking condition
Calibration	Calibration method; Zero/Span calibration Calibration mode; Manual, Auto, Local initiate (HMI)
Validation	Validation method; Up to 2 points Validation mode; Manual, Auto, Local initiate (HMI)
Power supply	24 V DC ±10%
Warm-up time	5 min.
Protection degree	IP66, NEMA Type 4X
Hazardous area classifications	Division 1, Zone 1; Explosion-proof/ Flame-proof type; FM, cFM, ATEX, IECEx (Pending)
Process gas condition	Process gas temperature: Max 850°C Process gas pressure: 90 to 500 kPa abs. Process gas flow velocity: 1 to 30 m/sec
Installation condition	Ambient operating temperature: -20 to +55°C Storage temperature: -30 to +70°C Humidity: 0 to 95%RH at 40°C (non-condensing)
Additional Specifications	Cable entries; 1/2 NPT or M20x1.5mm, one hole and 3/4 NPT or M25x1.5mm, three holes Purge gas connections; 1/4 NPT or Rc 1/4 Recommended purge gasses; O2 analyzer: N2 (99.99% or greater, application dependent) CO, CO/CH4, NH₃, and HCl analyzers: N2 (99.99% or greater, application dependent) or instrument air

Performance

Measurement gas		Repeatability	Linearity
O₂		± 1% reading or ± 0.01% O₂, whichever is greater	± 1% F.S.
CO (ppm)		± 2% reading or ± 1 ppm CO, whichever is greater	± 1% F.S.
CO + CH₄	CO	± 1% reading or ± 1 ppm CO, whichever is greater	± 2% F.S.
CO + CH₄	CH₄	± 4% reading or ± 0.02% CH₄, whichever is greater	± 4% F.S.
NH₃		± 2% reading or ± 1 ppm NH₃, whichever is greater	± 2% F.S.
HCL		± 1% reading or ± 2.5 ppm H₂O, whichever is greater	± 2% F.S.

YH8000 HMI Unit

Display	Touchscreen 7.5 inch TFT color LCD panel, 640 x 480 (VGA)
Communication	Ethernet; RJ-45 connector, Communication speed; 100 Mbps
Protection degree of enclosure	IP65, NEMA Type 4X
Weight	4 kg
Mounting	Analyzer mount (Front, left-side, right-side) with tilt function, Pipe mount or Panel mount
Cable Entries	1/2NPT or M20 x 2
Installation conditions	Ambient operating temperature; -20 to 55℃ Storage temperature: -30 to 70℃ Humidity: 10 to 90%RH at 40℃ (Noncondensing)
Power Supply	24 V DC ±10%
Hazardous area classifications	Division 2, Zone2: Non-Incendive/Type n; FM, cFM, ATEX, IECEx