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TQ Environmental Ltd

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Unit 2,
Silkwood Court,
Ossett,
West Yorkshire,
WF5 9TP,
United Kingdom

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Products

TQ31 Refrigerant Leak Detector

The discreet, self contained sensor is ideal for room monitoring. Fitted with simple LED indication and internal sounder, which can be disabled when remote monitoring
The sensor can be used individually or as part of a group of sensors monitoring a complex.
Groups of sensors can be connected to a TQ32 Area Alarm panel, situated conveniently on each floor for example, for group indication and room identification.
If required several TQ32 Area Alarm panels, covering individual floors can be linked to a central TQ35 reception panel to raise the alarm at a reception desk or security station for example.

TQ32 Area Alarm Panel

Is typically used to detect the presence of Refrigerant gases commonly used in air conditioning systems or CO2 build up.
Individual room sensors are connected to a TQ32 Area Alarm panel, situated conveniently on each floor.
Local indication of room number and simple operator controls for ease of use.
Configurable alarm relays allow sensor to be grouped together to provide trip signals for individual corridors if needed.
If required several TQ32 Area Alarm panels, covering individual floors can be linked to a central TQ34 Indicator panel to raise the alarm at a reception desk or security station for example.

TQ4200 1-8, 1-16 Refrigerant Gas Monitoring System

The TQ4200 system has been independently tested for inclusion in the ECA scheme, as an Automated Refrigerant Leak Detection System. Mandatory under the F-gas regulations for any refrigeration plant containing 300kg of refrigerant.
The System has a modulated broadband infra-red source to enable the detection of CFC’s, HCFC’s and their replacement, HFC’s allowing the 4200 to accurately monitor different gas types simultaneously from a single detection panel.
Gases detected include:- R22, R134A, R404A, R410A,R407C, R422D, and R507 with many more available upon request; providing an ideal solution when upgrading from R22 applications.

TQ122 − Toxic Gas Sensor

Robust stainless steel housing, makes these sensors suitable for hostile environments e.g. offshore, petrochemical works
High thermal mass, provides exceptional zero stability
Flameproof (EExd) suitable for Zones 1 & 2 applications No IS barriers required
Two-wire 4-20mA transducer Compatible with industry standard controllers

TQ8000 1-8, 1-16 Gas Detection Control Panel

The TQ8000 is housed in an IP54 rated metal, wall mounted enclosure, with entry for field cabling through the bottom gland plate.
The alarm and fault status of each channel is displayed on the front panel.
Each channel has 2 user defined alarm thresholds, which operate the front panel LED’s and the internal sounder.
Operator interface controls are available internally for the adjustment of alarm set points, channel inhibit, relays, and calibration span and zero. These controls are customer configurable and password protected.
All units are supplied with a comprehensive manual detailing installation, maintenance and easy to follow operating instructions.
Can be provided with separate or inbuilt battery back up.

TQ8000 1-24, 1-32, 1-40, 1-48 Gas Detection Control Panel

The TQ 8000 provides 15 configurable relays which can be utilised as ‘volt free’ or 24V DC, to operate remote devices. Also included are individual 4-20mA outputs for interfacing to programmable logic controllers, PC’s and
building management systems. Expansion relay cards can also be fitted to provide individual channel alarm contacts on larger systems.
In addition to the alarm relay contacts the TQ 8000 system can also provide MODBUS outputs for integration into 3rd party remote monitoring systems or remote displays.

TQ4200 1-24 Refrigerant Gas Monitoring System

Refrigeration Leak Detection. ECA approved and F-Gas compliant. TQ 4200 sampling systems. Ideal for retail and commercial HCFC, HFC refrigeration systems.
The system requires a 240/110Vac power supply rated at 5 amps. Connection of the sample lines completes self contained operation.
The system has a modulated broadband infra-red source to allow the detection of many species of CFC’s and HCFC’s.
Gases detected include:- NH3, R12, R22, R114, R410A,R134A, R403A, R407C, R403B, many more are available upon request.
The TQ4200 is fully qualified for the enhanced capital allowance scheme, Allowing the end user to claim the VAT of the unit and it’s installation back from HM treasury department.
TQ Environmental Plc, operate a policy of continual product development which means the specification is subject to change without prior notice.

TQ122 − Flammable Gas Sensor

Robust stainless steel housing, makes these sensors suitable for hostile environments
Stainless steel sintered flame arrestor
Flameproof (EEx d) No Zener barriers required
Highly stable 6 monthly calibration interval
Special versions available Poison resistant, high temperature
Simple design Cost effective
Ingress protection IP55

TQ126 Single Controller

The TQ126 has been developed to provide a low cost solution to local single point detection of toxic and flammable gases.
The TQ126, in conjunction with our series of toxic, flammable and Oxygen sensors, offers a high degree of flexibility.
They can be used as follows:-
As a combined sensor and control unit for safe area applications
As a safe area control unit with remote hazardous area sensors.
(See diagram below)
The TQ126 controller is unique in the range, as it provides a 4-20mA output for concentration, when using catalytic sensors. This is derived from the 24V supply. The TQ126 cannot be powered from the 4-20mA line.

GD233 − Stand Alone Single Point Infrared CO2 Sensor

The GD233 is used to detect the presence of Carbon Dioxide gas in the workplace.
The LED multi-colour array shows increasing CO2 levels and alarm trigger points.
The GD233 is used for diffusion sensing applications, where the sensor is positioned at the point of monitoring and the gas diffuses through the sensor’s optical path. These sensors are not affected by being over range and can be used in inert atmospheres.
Integral alarm relays, with 2 distinct trigger points can be used to start extraction fans and trigger alarm beacons.

TQ4000 − 1-4 Channel Gas Detection Control Panel

The unit has been designed and manufactured in the UK to offer, at low
cost, a highly reliable solution to gas monitoring. The unit can be factory or field configured for 1 − 4 channels as toxic or flammable sensors or a combination of gas and other 4-20 mA sensors.

GD231- Stand Alone Single Point Infrared Freon Sensor

The GD231 is used to detect the presence of Freon’s, HFC’s in plant rooms, freezer chests or display cabinets where a leakage of refrigerant gas may occur. The GD231 includes a diffusion filter, while preventing ingress of dust and other particulates allows the atmosphere to reach the optical bench of the instrument.
The LED multi colour array shows increasing Refrigerant levels and alarm trigger points
Integral alarm relays, with 2 distinct trigger points can be used to start extraction fans and trigger alarm beacons.

TQ4300 − Multi Point Multi Gas Sampling System

The system is available with a range of advanced ultra-stable infra-red gas analysers which require minimal calibration in service. With proven reliability and minimal maintenance the TQ 4300 is designed for both industrial and commercial use.
Suitable for all refrigerant monitoring, Carbon Dioxide, HFC Refrigerants or both. Ammonia Detection is also available in the LEL and PPM ranges.

Part No. 611-014

3 way “Tee” connector for 6mm tube

Part No 920-030

Pump

Part No 611-039

3 way “Tee” connector for 6mm tube

Part No 814-019

LCD Display Assembly

Part No 610-052B

Sample Line Connector 1/8”BSPP to 6mm tube

Part No 420-026

Replacement In Line Filter for use with TQ 4200/ 4300 sampling systems

Part No 370-541

TQ4200 Controller Card

Part No 920-019

8 way solenoid bank

Part No 610-026B

Charcoal Filter Bulkhead Fitting

Part No 420-006A

Particle Filter Element 420-006A

Part No.610-022B

6mm to 1/4" Tube Fitting

Part No.420-040

End of Line Filter For Dry Space Only Includes Female Straight Adaptor as shown

About us

Leading specialists in the design, manufacture, installation, commissioning and servicing of gas detection instruments, TQ Environmental cater to a vast array of global industries. Since establishment, we have been widely recognised for our exceptional customer service and attention to detail, receiving a significant amount of praise from satisfied clients all over the world. Some of the establishments we cater to include car show rooms, hospitals, airports, shops, oil rigs, hotels, bus depots, air conditioning, farm shops, retail, nuclear plants, breweries and more.

Here at TQ Environmental, we have enough knowledge and experience within the gas detection industry to provide reliable, flexible service unlike any other company on the market. Gas detection solutions are designed to help protect the workforce from flammable, toxic or asphyxiant gases, therefore creating a safer and more secure environment. Some of our main products we provide include refrigerant leak detectors, area alarm panels, toxic gas sensors, flammable gas sensors, gas detection control panels, refrigerant gas monitoring systems, infrared CO2 sensors and more.

Aspirated leak detection.

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