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Companion 4 Portable GC - It goes with you Anywhere!

Companion 4 Micro-TCD GC - Features

  • Rugged Portable Micro-TCD Gas Chromatograph

  • 1 to 4 GC Column Oven/Micro-TCD Channels

  • 2 Micro-machined Thermal Conductivity Detectors (TCD) per Channel

  • Designed for Unattended Continuous Operation

  • Most analyses in less than 1 min

  • Rechargeable Battery

  • Built-in Computer

  • Integrated 3-Stream Selector

  • Automated Calibrations

  • Fast & Accurate with Low Maintenance

  • Built-in Instrument Diagnostics

  • Easy Chromatography Data System

  • Temperature Control to 0.001°C

  • Pressure Control to 0.001 kPa

  • Ultra Compact and Lightweight

  • Water-tight Carrying Case (52 x 40 x 21 cm)

  • Approximately 15 kg

  • Compact gas tanks, sold separately

Custom Built-in - Components

Micro-TCD GC –

The small, rugged, and versatile DPS Micro-TCD Gas Chromatography Systems, feature a micro-machined Thermal Conductivity Detector (TCD). The DPS Micro-TCD GC can pack 1 to 4 Column Oven/Micro-TCD Channels inside the same Exchangeable cartridge. Each Channel contains a Column Oven, Pre-Column, Analytical Column and 2 Micro-TCD detectors.
In addition, each Channel also connects Injection and Backflush valves offering unattended operation and super-fast analysis times. A built-in Stream Selector automatically loads each sample stream, or calibration gas. Most analyses are completed in seconds and one sample can be injected right after another for Continuous Monitoring applications.
The DPS Micro-TCD GC Systems are a new kind of GC. Offering all of the separation power of our conventional GC System in an ultra-small package, allowing on-line, at-line, or laboratory analyses to be performed almost anywhere. And with 4 Channel capability, even complex analyses can be performed in seconds.

Micro-TCD GC Channel –

Each channel is independent and self-contained. Once mounted inside the cartridge it connects to the control module to provide all of the capabilities of a complete GC system.  Including analytical column, pre-column, GC oven, 2 TCD detectors, sample injector, back-flush valve and more.

Computer & Battery –

The computer running the chromatography and control software and the rechargeable battery are built right into the Companion 4. A convenient recharge port connects to a power source to recharge the battery pack. The entire GC system will run several days between recharges, or the GC System can be connected to an external power source for continuous operation.

Small High Pressure Refillable Gas Tanks –

The convenient Re-fill Kits from DPS allow you to use your large cylinders of carrier gas to fill the small high pressure gas bottle. Each Kit contains the Refill station to connect to the large cylinder, a small high pressure tank, regulator and fitting. There is enough room inside the Companion 4 for 2 carrier gas bottles and a calibration gas standard. Depending on the carrier gas flow, each bottle will typically last a week between refills. It takes less than 1 min to refill the bottles from the large cylinder.

Companion 4 Micro-TCD GC - Specifications

  • Water-tight Carrying Case (52 x 40 x 21 cm)
  • Approximately 15 Kg
  • Carrier Gas Tanks
  • Calibration Gas Tank
  • Rechargeable Battery
  • Built-in Computer
Micro GC Channels:
  • 1 – 4 Micro GC Channels in an Exchangeable Cartridge
  • Each GC Channel contains GC Oven, Analytical Column,
    Pre-Column, 2 Micro-TCD Detectors, Electronic & Gas
Software/GC Control Interface:
  • 1 – 4 Micro GC Channels in an Exchangeable Cartridge
  • Enter and store GC Methods via Computer connection
  •  GC Methods run without Computer connection
  • Safety Limits on all user entered parameters
  • Communications: RS232, RS485, Ethernet, Digital I/O
  • Protocols: Modbus, TCP
  • Sequencing for Sampling, Injection, Backflush, etc.
  • Memory Storage – up to 256Gb
  • Control for Carrier Gas(s)
  • Control for Valves (Injection, Backflush, Sample)
  • Schedule Auto-calibration
  • Control for Stream Selection
  • Digital Signal Outputs for each Detector
  • Universal voltage input (85 – 240 Vac, 50-60Hz)
  • Power Supply – (20 – 28 Vdc)
  • Power Consumption – 75 Watts maximum
  • 1 – 4 Micro-TCD Detectors Installed
  • 2 Micro-TCD´s per Channel (8 total)
  • Detection Limits (500ppb – 100%)
  • 150 oC Temperature Limit with 0.1 oC set-point resolution
  • 1 Micro-machined Injector per Channel
  • Sequence Controlled Injection Time
  • 1 Pre-Column with Backflush per Channel
  • 1 Analytical Column
  • Isothermal Operation
  • Repeatability – < 0.05% RSD
  • Cycle Time (Typical) – 15 – 60 sec
  • Optional Temperature Program
Control Module:
  • Moisture – (5 to 95 %)
  • Operating Temperature – (5 to 55 oC)
  • Storage Temperature – (-20 to 60 oC)
  • Dimensions – 20 X 15 X 10 cm
  • Weight – 8 Kg
  • Gas Ports – 1/16″
  • Carrier – Helium, Argon, Nitrogen, or Hydrogen
  • Carrier Input Pressure – 450 kPa
  • Carrier Consumption (Typical) – 15 mls/min
  • Sampling – Pressurized or by internal Vacuum Pump
  • 3 Sample Streams (more optional)