Tunable Laser Hydrogen Chloride Analyzer TX-100


TX-100 is HORIBA’s brand new laser HCl analyzer with a probe type optical system which employs direct insert method. TX-100 is suitable for monitoring HCl concentration in incineration plants and the control of HCl removal process in various industries including cement factories and petrochemical plants, etc.


Probe type optical system

  • Both laser projector and receiver are together at the same side of the analyzer
  • Only one process connection tie-in is required for the installation of the analyzer
  • Easy replacement to an existing analyzer (e.g. sampling type analyzer)
  • The probe that maintains the optical axis performs stable analysis
  • Continuous moisture correction function supports high accuracy measurement

Laser analyzer

  • Non-sampling method provides direct measurement and quick response
  • Feedback control available
  • Excellent long-term stability
  • No maintenance for effluent treatment because no reagent is required

HORIBA’s original calibration mechanism

The analyzer calibrates without any disruption to the facility’s operations. The zero point can be checked automatically and the signals are kept in stable condition over long term (US patent No. 8934101; patent pending for Japan, Europe, and China)

The screen with high visibility displays daily operation status
such as measurements, etc.

Manufactured by HORIBA



Tunable Laser Gas Analyzer



Measurement target

HCl and H2O in process gas

Measurement component

HCl, or HCl and H2O simultaneous measurement

Measurement principle

Non Dispersive Infrared (NDIR)

Measurement type

Probe type

Laser class

CLASS1(IEC60825-1: 2014)

Protection degree


Wetted materials

SUS316L、SUS304、BK7、FKM、PTFE、aluminum alloy

Tube connections

Rc1/8 (Tube of 8 mm O.D./6 mm I.D.)

External dimentions

Analyzer: Max: 358 (W) x 517 (D) x 453 (H) mm
Flange diameter (Max.):  Φ235 mm、 Length: 1500 mm
Probe diameter: Φ 89 mm


Analyzer: 19 kg
Probe: 20 kg

Flange specifications


Power supply voltage


Power consumption

90 W


LCD (128 × 64 dots), LED (3 units: Status display)

Display contents

Gas concentration, transmission, process gas temperature, process gas pressure, system status, alarm information, system information (product serial no., output signal, IP address, optical path length, analyzer unit internal temperature)



Analog input/output

Two channels (Process gas temperature, process gas pressure)
4 to 20 mA (isolated input)

Two channels (Process gas concentration, transmission, process gas temperature, process gas pressure)
4 to 20 mA (isolated output) Max. load: 550 Ω

Digital input/output

One channel (External alarm) 
Non-voltage digital input (isolated input) 
Input open signal: 100 kΩ or more 
Input close signal: 200 Ω or less

Two channels (Warning/Calibration/Warm-up/Maintenance state/Fault)
Relay contact output (isolated output) Max. 24 V, 1 A at each terminal



Measurement component

HCl, H2O

Measurement range (250℃、101.3kPa)

HCl: 0-50,100,200,300,400,500 ppm

H2O: 0-50%

Measured optical path length



HCl: +/- 1.0% F.S.

H2O: +/- 2.0% F.S.


HCl: +/- 1.0% F.S.

H2O: +/- 2.0% F.S.

Zero drift

+/- 2.0% F.S. / 6 months

Span drift

+/- 2.0% F.S. / 6 months

Data update cycle

Approx. 2sec

Calibration cycle

6 months

Calibration method

Manual calibration using gas cell


+/- 2.0% F.S.
Gas conditions (at standard process gas condition range)

Warm-up time



Usage Conditions

Ambient temperature

-20 ~ 55°C (no direct sun rays, radiant heat and heat conduction from flange)

Ambient humidity

Relative humidity: 90% or less (no condensation)


Ambient criterion or less

Air purge

Instrument air (must not contain oil or mist; no dew formation)
Pressure: 0.2 to 1 MPa

Air purge flow rate

60 L/min or more (depend on the process gas conditions)


At 1 to 200 Hz, 1.96 m/s2 or less (excluding resonant frequency)

Process gas conditions

Temperature: 150 to 250°C

Pressure: 101.3 ± 10 kPa

Flow speed: 25m/s

Dust: 0.1mg/Nm3 or less


Measurement Techniques

How does the probe type optical system work?

From the same location in the analyzer, the light source and detector are attached to a probe which is inserted into the stack. A mirror installed at the tip of the probe receives and reflects the laser light through the probe, back to the detector.


PC-HMI Software
PC-HMI Software is a free software that can be operated with a Windows PC and is accessible to the analyze through Ethernet. The screen shows several indications such as concentration, transmittance and trend graph as well as various operations and settings including calibration, etd.

PC operating environment
Before the PC-HMI software is installed into a PC, please confirm the PC operation system is under the following conditions;
PC/AT compatible with Windows 7 (32/64 bit)/8.1(32/64 bit)/10(32/64 bit).

How to download
Click "Download TX-100 PC-HMI Software" below, and then the user questionnaire page shows up. Please answer the simple questions. Once questions are answered and "send" button is clicked, the URL to download the software will be sent to your e-mail address which will be entered in the equestionnaire page. When URL is clicked, software dawnload process will start.

* This free software is offered only for promotion. HORIBA accepts no responsibility for any damage or loss resulting from download or use of the software.

Download TX-100 PC-HMI Software

Download TX-100 Instruction Manual

Windows is a trademark or registered trademark of Microsoft Corporation in U.S. Japan, and other countries.
Ethernet is a trademark of Fuji Xerox Co., Ltd.