K9194XA Yokogawa DCS module

• Brand
  Yokogawa
• Model
  K9194XA
• Product Name
  FID Flame Ionization Detector Assembly for GC1000 Mark II On-line Process Gas Chromatograph
• Country of Origin
  Japan
• HS Code
  9027500000
• Dimensions
  165mm (Length)×92mm(Width)×78mm(Depth)
• Weight
  2.0 kg (4.4 lbs)
• Operating Temperature
  5°C ~ +55°C
• Storage Temperature
  -40°C ~ +75°C
• Warranty
  12 month
• Product Status
  New and original
• Applicable Humidity
  5% ~ 90%

Yokogawa K9194XA Flame Ionization Detector Technical Specification

Power Supply Index

Rated Operating Input Voltage: 24VDC isolated DC power supply

Typical Operating Current: 220mA; Maximum peak working current ≤ 300mA

Total Power Consumption: ≤ 7.2W low power consumption design

Built-in Protection: Overcurrent automatic fuse protection, high voltage ignition circuit short-circuit protection

Detection Electrical Performance

Minimum Detection Limit: ≤ 1×10⁻¹² g/s carbon mass flow rate

Linear Dynamic Range: 10⁷ ultra-wide linear range, covering trace & high concentration hydrocarbon measurement

Output Signal: Standard 4~20mA isolated analog current signal, corresponding to full-scale detection range

Ignition Working Voltage: High-frequency AC ignition voltage for hydrogen flame automatic ignition

Ion Current Amplification Circuit: Built-in high-impedance micro-current preamplifier, signal anti-interference filtering processing

Yokogawa K9194XA Complete Wiring & Pneumatic Connection Instructions

1. 24VDC Main Control Power Wiring

Terminal V+: Positive pole of isolated 24VDC DC power supply

Terminal GND: DC power common negative ground terminal

PE Protective Earth Terminal: Must connect chromatograph cabinet equipotential grounding busbar for anti-interference and safety protection

Wiring requirement: Use shielded double-core cable, shielding layer single-end grounding on control cabinet side, separated wiring layout from gas pipeline and high voltage ignition line.

2. Ion Signal & Analog Output Wiring

a. Micro ion signal transmission terminal: Connect internal preamplifier circuit, adopt ultra-low noise shielded dedicated signal cable

b. 4~20mA Analog Output Terminals: Two-core twisted shielded cable connected to PLC/DCS analog input channel for concentration remote transmission

c. Flame failure fault alarm dry contact: Passive normally open contact for flame loss interlock protection signal output

3. High-Frequency Ignition Circuit Wiring

Special high-voltage ignition wiring terminals: Must use dedicated high voltage resistant insulated wire; strictly separate layout with weak current signal wiring to avoid high-frequency signal interference.

4. Process Gas & Auxiliary Gas Pipeline Connection (Pneumatic Matching Wiring)

a. Sample Gas Inlet Port: Connect process sampling pipeline with 1/8 inch stainless steel pipeline

b. Hydrogen Fuel Gas Inlet: High purity hydrogen air source connection, matched with pressure reducing valve and filter

c. Zero Air Support Gas Inlet: Purified dry combustion air pipeline access

d. Tail Gas Exhaust Port: Discharge post-combustion waste gas out of instrument cabinet

Yokogawa K9194XA Core Product Advantages

1. Original Yokogawa OEM assembly, perfectly plug-and-play matching with GC1000 Mark II gas chromatograph, no secondary calibration required

2. Ultra-high trace hydrocarbon detection sensitivity, accurate measurement for ppm-level trace organic gas impurities in process pipelines

3. Integrated high-precision micro-current amplification module, strong anti-electromagnetic interference, stable signal output in chemical plant strong interference environment

4. High temperature resistant stainless steel combustion cavity structure, anti-corrosion against acidic and sulfur-containing process gas, long service life

5. Automatic hydrogen flame ignition & flame loss self-diagnosis function; automatically trigger alarm and cut off hydrogen supply when flame extinguishes

6. Modular integrated structure, independent detachable detector unit, greatly shorten on-site maintenance and replacement downtime

7. Standard 4~20mA analog signal output and digital communication interface, seamless data upload to DCS, PLC and upper monitoring system

8. Passed CE, IEC international analytical instrument safety certification, compliant with petrochemical industrial explosion-proof safety auxiliary equipment standards

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