YOKOGAWA TDLS200 TruePeak Tunable Diode Laser Analyzer
Yokogawa's new TDLS200 TruePeak Tunable Diode Laser (TDL) Analyzer is designed to make fast, accurate measurements on near-infrared absorbing gases in harsh process environments. It is ideally suited to in-situ analysis, particularly for measurements in environments involving changing pressure or temperature. It can operate with process pressures up to 2 MPa absolute and process temperatures up to 1500°C, has a fast response (6 seconds), and is interference free for most applications.
The TruePeak analyzer operates by measuring the amount of a laser light that is absorbed as it travels through the gas being measured. Involving no sensor contact with the process and no moving parts, it leads to a high MTBF and hence a low cost of ownership. It offers a range of flexible installation options, and features onboard diagnostics. Using a tunable diode laser as a monochromatic light source offers the benefits of sensitivity, selectivity to resolve single absorption lines, and power - to overcome the effects of optically thick environments with high particulate loading.
The new instrument is one of the most robust process analyzers available. In addition to operating in conditions of high temperature or pressure, it can be used under difficult conditions including environments involving corrosive, aggressive and high particulate content materials.
Features
- In-Situ Analysis
- Measures O2, moisture, CO, NH3, CH and HCN
- Interference free for most applications
- Capable of measuring under changing pressure, temperature, and background
- Process Pressures up to 2 MPa
- Optical measurement - no sensor contact with process
- Low long-term cost of ownership (no moving parts, high MTBF for components)
- Onboard diagnostics
- ATEX Group II for zone 2 (Cat 3G) with purge systems
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Specification
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Measurement range |
Dependent on application and optical Path length.
Typical 0- 100% for analysis of oxygen or carbon monoxide. Measuring in ppm range is possible for carbon monoxide or moisture. |
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Output signal |
(3x) 4- 20 mA DC with maximum load of 900 ohms
Three isolated outputs may be used for gas concentration, transmission, re- transmission of data inputs, dual range, or second gas measurement where applicable. 3.3 mA user configurable on warnings and faults, according to NAMUR NE43. |
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Output span |
Freely programmable within measuring range |
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Contact outputs |
(3x) configurable relays for Status (fault, warning, in validation, concentration level, etc.) Form C single pole double throw (SPDT) contact outputs with maximum 24 V DC 1 A or 125 V AC 0.5 A. |
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Valve control |
(3x) Form C SPDT contact outputs with C connected to 24 V DC power supply to activate calibration solenoid valves for zero, span and dynamic spiking (validation) gas.
Maximum load 1 A (max 10 W/ valve for zero and span gas and dynamic spiking). |
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Analog input |
(2x) 4-20 mA DC inputs for Temperature and Pressure |
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Digital communication |
Ethernet IEEE 802.3 10/100 Mbps, RJ-45 |
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Data storage |
USB1 and USB2 connection for data transfer using memory stick, internal storage in SD card (result files, spectra capture, configuration data, etc.) Capture rate is configurable. |
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Warm-up time |
5 min for functioning, 60 min for full operation within specifications |
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Power supply |
24±0.5 VDC, 4A
Accessories;
90-240 VAC, 50/60 Hz can be supplied to:
-Universal Remote Display (URD)
-Utility Panel(s)
-Optical Power Supply Unit
(These devices all supply 24 VDC to power the TDLS Analyzer) |
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Ambient temperature |
0 to +50 ℃ |
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Humidity |
0- 90% RH non condensing or 0- 100% with correct purge gas specifications |
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Area classification |
The standard analyzer is designed for operation in safe area (general purpose). The addition of a purge system facilitates operation in hazardous area in accordance with the relevant UL, CSA and ATEX standards for gaseous releases.
(ATEX CAT 3G). |
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Weather resistance |
IP65 |
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Cable entries |
3/4" NPT(f) threads |
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Gas connections |
Analyzer 1/4" o.d. Swagelok only, flow cells 3/8" NPT(f) and 1/4" NPT(f), with others on request |
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Enclosures |
Die cast copper free aluminum grade AL SI 12 with a powder coat exterior finish. The alloy is particularly resistant to salt atmosphere, sulfur gases and galvanic corrosion, Stainless steel captive screws and optional keypad. Laminated safety glass for optional display(s) |
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Sample gas temperature |
Maximum 1500℃, application dependant |
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Sample gas pressure |
Maximum 2 MPa (20 bar), application dependant |
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Mounting flanges |
ANSI Class 150 2 RF or ANSI Class150 3 RF or adaptors for ANSI Class 150 4 RF |
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Mounting angle |
Flange alignment tolerance within ±2 degrees |
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Weight (approx.) |
Launch unit 16kg x (35 lbs), detect unit 5.5kg (12 lbs) 2" 150# alignment flange 4.5 kg (10 lbs), 3" 150# alignment flange 9.5 kg (15 lbs) |
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Particulate loading |
Maximum 99% transmission loss
Note: Each application may differ in maximum limitations depending upon the combination of gas temperature, gas pressure, optical path length, and concentration of gas being measured. |
Performance specification
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Precision |
1 % of full scale deflection (FSD) reading |
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Linearity |
Typically R2 > 0.999 |
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Response time |
6 seconds (100%FS response), plus transport time for extractive syatems when applicable |
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Drift |
Application Dependant | |
