TQ Environmental Limited does not assume any liability arising out of the application or any use of any product or circuit described herein; neither does it convey license under its patent rights or the rights of others.
THE OPERATION DESCRIBED IN THIS DOCUMENT IS THE INTENDED USE OF THE TQ8000 Touch. TQ ENVIRONMENTAL LIMITED CANNOT BE HELD RESPONSIBLE IF THE TQ8000 Touch IS USED FOR ANY PURPOSE OTHER THAN THAT STATED. ANY OTHER USE OF THE TQ8000 Touch WILL INVALIDATE ANY CERTIFICATES ISSUED.
‘Mute’ functions. An internal password protected Menu allows the user to calibrate or re-configure each input. The TQ8000 Touch in its native form provides a neat, “flush to wall” installation by using the three internal mounting points. TYPICAL INSTALLATION...
TQ Environmental Limited Specification Std 8 x 2/3 wire 4-20mA source, or 3 wire Pellistor type. Inputs: Expandable up to 48 inputs Outputs: 16 SPCO relays, rating: 24 Vdc/280V ac @ 12A resistive local in Panel 32 SPCO relays, rating: 24 Vdc/280V ac @ 12A resistive local or external to panel 1 x 4-20mA source per input.
TQ Environmental Limited 2.0 Description The TQ8000 Touch is based around a Control Board communicating with three other electronic units to monitor each of the 8 channels and provide display and alarm functions. These units are: - Adaptor PCB ...
This PCB has 16 relay SPCO outputs, and is fitted under the Adaptor Board. All of the relays are configurable to operate for any level of alarm on any of the eight channels. The TQ8000 Touch provides a ‘Latched’ or ‘Non-Latched’ and ‘normally On’ or ‘Normally Off’ configuration for individual relays.
TQ Environmental Limited 2.5 Remote Relay Board (if fitted) This PCB is available with 16 relay SPCO outputs. It may be fitted within the TQ8000 Touch enclosure or within an enclosure separate from the rest of the TQ8000 Touch unit.
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TQ Environmental Limited Figure 3 Page 11 of 43 17654PM Issue: 3 December 2022...
When the TQ8000 Touch is first powered on the system starts loading EEPROM configuration data and then enters ‘Start-up’ mode. It will remain in this mode for 120 seconds to enable the sensors to stabilise. During the start-up mode the TQ8000 Touch will not generate any alarms or activate any relays.
‘falling’ alarms and can be configured in any combination for each channels. In a low alarm condition (alarm level 1), the TQ8000 Touch display will show the alarm status on the respective channel that is in alarm as well as an alarm condition in the System Status field on the right-hand side of the display.
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TQ Environmental Limited Figure 6 In a High alarm condition (alarm level 2), the TQ8000 Touch display will show the alarm status on the respective channel that is in alarm as well as an alarm condition in the System Status field on the right-hand side of the display. The concentration value is shown inside the concentration box and the colour will change to Orange to indicate a HI Alarm.
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TQ Environmental Limited Figure 7 In a High High alarm condition (alarm level 3), the TQ8000 Touch display will show the alarm status on the respective channel that is in alarm as well as an alarm condition in the System Status field on the right-hand side of the display. The concentration value is shown inside the concentration box and the colour will change to Red to indicate a HIHI Alarm.
TQ Environmental Limited Fault Any sensor fault will cause the TQ8000 Touch to indicate a ‘FAULT’ above the respective sensor as well as a Fault condition in the System Status field on the right- hand side of the display. The internal sounder will operate and any relays will activate/de-activate that have been pre-configured for that fault condition.
Reset Alarms When the respective channel has returned to its’ normal operation from an ‘Alarm’ or ‘Fault’ condition, the ‘RESET’ button will return the TQ8000 Touch Display and relays to normal and the internal sounder will be silenced. Page 17 of 43...
TQ Environmental Limited Sensor View Individual sensor information may be obtained by pressing on the particular sensors Location Name. A graph will be available indicating the real-time data for that sensor. The concentration is shown on a dashboard with the sensor output (in mA) and the digital ADC value for investigation purposes.
TQ Environmental Limited 3.10 Data Log View Pressing the ‘LOG’ button will bring up the Data Log View if an SD Card is present. Figure 12 Pressing the ‘START’ button will go to the beginning of the Data Log file, or pressing the ‘END’...
System the user may press the ‘C’ button to cancel password entry and return to the Main System View window. While accessing the Menu System, if the user fails to interact with the TQ8000 Touch the system will return to the Main System View window after 20 minutes and resume normal operation.
TQ Environmental Limited 4.2 System Configuration Figure 14 This Menu window enables the setting of the main system configuration. These include:- Setting the Number of Channels Setting the Modbus Station Number Setting the Sensor Fault Level in mA ...
TQ Environmental Limited 4.2 Channel Configuration This Menu screen will allow the Location Names, Gas Names and Gas Units to be changed by pressing the tabs at the top of the screen. Figure 15 If using a system with more than eight channels/sensors, the user may swipe the bottom of the screen left or right to select other pages of channels/sensors.
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TQ Environmental Limited Figure 16 To select text in the Edit Box the user may long-press the desired text to highlight it. When the text field is highlighted the user will be able to Copy the text by pressing the ‘Copy’...
TQ Environmental Limited 4.3 Alarm Configuration This Menu allows the alarms to be configured for each channel/sensor. Figure 17 The required channel/sensor may be selected using the Up/Down arrow buttons. With the correct sensor/channel selected the user may set the Sensor Range by pressing the Sensor Range Edit Box.
TQ Environmental Limited Similarly the alarm set points may be edited for Alarm 1, Alarm 2 and Alarm3. Long pressing the edit boxes will highlight the value to enable the Copy, Paste, Paste All functions. Alarms may be set to be Rising(+) or Falling(-) by pressing (toggling) the appropriate buttons for Alarm 1, Alarm 2 and Alarm 3.
The user may save the settings by pressing the ‘SAVE’ button. 4.5 Calibration The Calibrate Sensor screen is used to calibrate the TQ8000 Touch system’s sensors. The required sensor to calibrate is selected using the Sensor Left/Right arrow buttons. Figure 20 The top right-hand side of the display shows current Location Name, Sensor Range and Digital ADC Calibration Values for the selected sensor.
4.5.2 Span Setup As with the ‘Zero’ set-up, to cater for the numerous sensor types that can be used with the TQ8000 Touch, ‘Span’ setup will be for a value at the higher end of the sensor range. Ensure that the sensor under calibration is exposed to its span conditions, and allow the concentration value displayed to stabilise.
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The user selects the Comms ports by pressing the tabs at the top of the screen. The values can be changed by moving the wheels to the required positions. The COM ports on the TQ8000 Touch are assigned as follows: ...
TQ Environmental Limited 4.8 Relay Test The Local Relays and Remote Relay (if fitted) may be individually activated using this menu screen. Figure 23 The Relay Board can be selected by pressing the Left/Right arrow buttons. The Green LED above the relay number indicates that the relay is currently activated while a Red LED indicates that the relay is currently de-activated.
TQ Environmental Limited 4.9 Default Data This is used to download the default data for the complete TQ8000 Touch system. A warning dialog window is shown requiring the user to confirm the downloading of the system data. Figure 24 Page 30 of 43...
TQ Environmental Limited 5.0 Modbus Communications This section specifies the MODBUS output of the TQ8000 Touch. It details the protocol used and information that is made available over the protocol. 5.1 Communications In MODBUS communications there is a Master device and a number of Slave devices.
TQ Environmental Limited 5.2.2 Gas Concentrations Concentrations are stored in Scientific form and stored in two parts, a reading and a precision part. This should be read RR E PP where RR is the reading and PP is the precision, e.g. 21.2% will be represented as 212E-1 or 212x 10 For the concentrations;...
6.0 Amps and fitted adjacent to the TQ8000. Connection to the 8 channel TQ8000 will be to the fused terminal block on the power supply tray for 16-48 channel unit it will be t a rail mount fuse isolator on termination rail.
TQ Environmental Limited NB The screen of the sensor wiring must not be connected to earth at the sensor, as it must be connected to the ‘Earth’ stud provided within the TQ8000 on the bottom left hand side of the unit.
All wires and screens, including earth wires, are correctly terminated and secure. All sensors are connected to their respective channel inputs as per the TQ8000 Touch configuration sheet. Ensure that all links and Input Modules are fitted correctly in accordance with the requirements of the sensor connected.
‘Wheatstone Bridge’ principle and therefore require the ‘bridge voltage’ & ‘bridge balance’ setting up prior to calibration. Upon power up the TQ8000 Touch will wait 120 seconds to allow the attached sensors to complete their self-test. 7.4 Pellistor Sensor Set Up The ‘Input Card’...
This normally takes about 1 hour. To ‘balance’ the Pellistor sensor bridge, open the relevant Sensor View page. Adjust the trim-pot VR2 until the reading shows 4.0mA. To clear any channel ‘Fault’ indications, press the TQ8000 Touch front panel ‘Reset’ button. Page 39 of 43...
F2 +5 Volt dc @2A F3 +24 Volt dc @3A For a power supply fault on the standard TQ8000 Touch 8 way 24 volt dc powered relay outputs, check the ‘Auxiliary’ output fuse ‘F4’. This is rated for the service required and should not be greater than 1.0A.
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Disconnect the Pellistor sensor, and check the resistance value between ‘+V’ and ‘0V’. This should be a low value from 3 Ohms upwards, depending upon the manufacturer. For Technical assistance on any problem encountered when using the TQ8000 Touch, please do not hesitate to contact: TQ Environmental Ltd Tel: 01924 271013 Fax: 01924 264420 Email: sales@tqenv.com...
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TQ Environmental Limited TQ Environmental Limited Silkwood Court Wakefield West Yorkshire WF5 9TP United Kingdom Page 43 of 43 17654PM Issue: 3 December 2022...
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