Related Manuals for GasTech GTA-4100R
Summary of Contents for GasTech GTA-4100R
- Page 1 GTA- 4100R Dual Processor Controller Card OPERATOR’S M ANUAL +61 8 6108 0000 info@gastech.com gastech.com...
- Page 2 GTA-4100R Dual Processor, Dual Channel Controller Card Part Number 73-4100R Manual Revision v6.41 (updated 5 December 2012)
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Page 4: Table Of Contents
Table of Contents Introduction ..............................6 Features ..............................6 Front Panel Layout ..........................7 Installation ..............................8 Mounting ............................... 9 2.1.1 Micro Rack ............................. 9 2.1.2 Standard 19” Rack..........................9 Wiring ..............................10 2.2.1 Common Module ..........................11 Configuration ............................... 14 Isolate Mode ............................ - Page 5 4.2.4 Fault Alarm............................37 Normal Operation ..........................38 Maintenance ............................38 APPENDIX I. Troubleshooting ......................... 39 APPENDIX II. Spare Parts List ........................... 40 Power Supplies ............................ 40 APPENDIX III. Specifications ..........................41 Page ii © 2008 GasTech Australia Pty Ltd...
- Page 6 Under no circumstances will GasTech Australia be liable for any claims, losses, or damages resulting from or arising out of the repair or modification of the equipment by a party other than GasTech Australia or its authorised service representatives, or by operation or use of the equipment other than in accordance with the printed instructions provided by GasTech Australia or if the equipment has been improperly maintained or subject to neglect or accident.
- Page 7 If you wish to set a limit to the authorised repair cost, state a “not to exceed” figure. GasTech Australia’s policy is to perform all needed repairs to restore the instrument to full operating condition, including reactivation or replacement of all out-of-warranty electrochemical cells.
- Page 8 1. Consumers have the benefit of conditions and warranties implied by the Trade Practices Act 1974 (TPA) and similar provisions of State and Territory enactments and nothing in these conditions is intended to exclude, restrict or modify any statutory obligation of GASTECH AUSTRALIA PTY LTD (Company) if that cannot lawfully be effected.
- Page 9 This operator’s manual uses the following notices. NOTE: Notifies you of additional information. CAUTION: Notifies you of potential damage to equipment. WARNING: Notifies you of potential danger that can result in personal injury or death. Page 5 © 2008 GasTech Australia Pty Ltd...
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Page 10: Introduction
Introduction The GTA-4100 series is a family of fixed-instrument, continuous-monitoring systems. The GTA-4100R is a two- channel dual processor, rack or panel-mounted control module that receives signals from remote transmitters, displays the reading, provides alarm, recorder, and relay outputs and provides power for remote transmitters, including sample-draw transmitters. -
Page 11: Front Panel Layout
1.2 Front Panel Layout The diagram below shows the layout of the front panel. Each GTA-4100R card is divided into two identical channels - top and bottom. Each side of the card is completely isolated from the other and operates completely independently. -
Page 12: Installation
NOTE: The packing slip indicates the serial number of your GTA-4100R. The serial number is also on a label on the side of the GTA-4100R. Please record the serial number on the front of this manual. -
Page 13: Mounting
GTA-4100R cards. 2.1.2 Standard 19” Rack A standard 19” wide rack case version can house up to ten GTA-4100R cards. It requires a standard rack frame with 3 units of space free in order to be mounted. Page 9... -
Page 14: Wiring
Both the Micro Rack and the standard 19” rack case versions contain a back plane. The back plane is the PCB at the back of each enclosure that the GTA-4100R cards plug into. It is also where all wiring terminates via terminal blocks. -
Page 15: Common Module
The common modules purpose is to synchronize all the 4100R cards flashing LEDS as well as common up all the alarm relays and runs a local buzzer. It also provides a global Ack/Reset button. Common module Common module Page 11 © 2008 GasTech Australia Pty Ltd... - Page 16 In the standard 19” rack case version, the common module is a separate card half the width of the GTA-4100R cards. In the standard 19” rack case version, the common module has two settings: 1.
- Page 17 Micro Rack Common Module Common Alarm 2 Common Alarm 1 Common fault Page 13 © 2008 GasTech Australia Pty Ltd...
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Page 18: Configuration
The display will still show the sensor readings during this time. NOTE: The GTA-4100R advanced software has a feature called zero suppression, which monitors the sensor performance and small sensor drifts, which is a characteristic of all sensors. This drift is due to sudden temperature, humidity and pressure changes or aging sensors. -
Page 19: Configuration & Programming
Bottom channel in normal mode WARNING: Isolate mode of the GTA-4100R allows you to disable the alarm LED’s, buzzer, and relays during calibration procedures and response tests. When calibration mode is activated, the LED’s, buzzer, and relays will not operate as described in this section. You must de-isolate the channel to bring it back into operation. -
Page 20: Board Layout
3.2.1 Board Layout The diagram below shows the location of the various jumpers, dip switches and trim-pots on the GTA-4100R PCB. Switch Panel 2 Low Alarm Head Volts Output Power Adjust (AL1) Positive (TP7) Supply (J4) (8 switches) Switch Panel 1... -
Page 21: Output Power Supply
To install the extender card, remove the GTA-4100R by unscrewing the 2 screws securing it to the rack chassis. The card will then slide out on its guides. Insert the Extender card and then plug the GTA-4100R into the Extender card. -
Page 22: Sensor Voltages
3.2.4 Sensor Voltages Sensor head voltages for each channel are set by adjusting the “Head Volt” potentiometer. This is P5 for the top channel and P6 for the bottom channel on each GTA-4100R module. Sensor head voltage adjust for top channel These potentiometers are set to 6V at the factory prior to delivery of the system but will need to be re- adjusted to compensate for voltage drops in cable runs or different sensors. - Page 23 10. Carefully re-adjust P5 (top channel) or P6 (bottom channel) for the correct voltage at sensor out in the field. 11. Repeat this process for each sensor on each card. Page 19 © 2008 GasTech Australia Pty Ltd...
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Page 24: Relay Configuration
This configuration allows warnings or alarms to be activated in the case of a power failure. AL2 jumper AL1 jumper Fault jumper Moving the jumper directly above the relay to the desired position changes the normal status of these relays. Page 20 © 2008 GasTech Australia Pty Ltd... -
Page 25: Switch Bank 1
3.2.6 Switch Bank 1 Switch bank 1 (S10 top channel, S1 bottom channel) is used to configure the GTA-4100R module for the various sensors that are attached to it. See the next section for various configuration examples for common sensors that can be connected to the GTA-4100R. -
Page 26: Switch Bank 2
3.2.7 Switch Bank 2 Switch bank 2 (S11 top channel, S12 bottom channel) is used to configure various settings in the GTA-4100R. Switch bank 2 for top channel This table shows the function of each of the 8 switches in the bank. See the next section for various configuration examples for common sensors that can be connected to the GTA-4100R. -
Page 27: Setting The Range
3.2.8 Setting the Range The range shown on the LCD screen can be adjusted to suit the different sensors being used on the GTA-4100R card. Follow this procedure to change the range: 1. Ensure that the switch bank 2, position 6 (DisAL) is turned off before proceeding. - Page 28 F.Scale Top Channel F.Scale Bottom Channel Page 24 © 2008 GasTech Australia Pty Ltd...
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Page 29: Setting The Units Of Measurement
3.2.9 Setting the Units of Measurement The range shown on the LCD screen can be adjusted to suit the different sensors being used on the GTA-4100R card. NOTE: The default unit of measurement is %LEL Follow this procedure to change the range: 1. -
Page 30: Setting Alarms
3.2.10 Setting Alarms The alarm trigger points can be adjusted to suit the different sensors being used on the GTA-4100R card. Follow this procedure to change the alarms: 1. Ensure that the switch bank 2, position 6 (DisAL) is turned on before proceeding. The display will show the alarm levels and direction on the LCD screen. -
Page 31: Gain And Offset Settings
These pots calibrate the gain and offset for the onboard 4-20mA port, which is used to provide a proportional output to PLC’s. NOTE: These pots are factory set and should not normally need adjusting. Offset Top Gain Top Channel Channel Offset Bottom Gain Bottom Channel Channel Page 27 © 2008 GasTech Australia Pty Ltd... -
Page 32: Settings Summary Table
3.3 Settings Summary Table This table shows the factory default settings for each channel. The second table can be used to record any custom settings for future reference. Page 28 © 2008 GasTech Australia Pty Ltd... - Page 33 Page 29 © 2008 GasTech Australia Pty Ltd...
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Page 34: Configuration Examples
3.4.2 Two-wire 4-20mA Loop Powered Sensor & Transmitter This diagram shows how to connect a two-wire 4-20mA loop powered sensor & transmitter to the GTA-4100R. Compatible GasTech part numbers include the GTA-65 series of Oxygen and toxic sensors. In this configuration, the DIP switches and jumper settings should be set as shown below. -
Page 35: Three-Wire 4-20Ma Sensor & Transmitter (500Ma Max)
3.4.4 Three-wire 4-20mA Sensor & Transmitter (500mA Min) This diagram shows how to connect a three-wire 4-20mA sensor & transmitter to the GTA-4100R. This scenario is used when the sensor draws more than 500mA and therefore must be externally powered. -
Page 36: Digital Contact Open & Closed (Callpoints)
3.4.6 Smoke & Heat Detectors This diagram shows how to connect smoke or heat detectors to the GTA-4100R. Multiple detectors can be wired in parallel if required. In this configuration, the DIP switches and jumper settings should be set as shown below. -
Page 37: Externally Powered Activate Devices
3.4.7 Externally Powered Activate Devices This diagram shows how to connect an externally powered activate device to the GTA-4100R. In this configuration, the DIP switches and jumper settings should be set as shown below. Page 33 © 2008 GasTech Australia Pty Ltd... -
Page 38: Calibration
Isolate mode 3. Apply zero grade air to the sensor and allow the sensor to stabilize. 4. Slowly adjust the “Zero” pot on the front panel of the GTA-4100R until the display shows “0” or the required value. -
Page 39: General Use
NOTE: The low alarm, high alarm, and fault circuits are not active for 60 seconds after power is applied to the GTA-4100R. This time delay minimizes false alarms during transmitter warm-up. The display will be flashing with the characters inverted. -
Page 40: Alarms
This section outlines the GTA-4100R indications for low alarm AL1, high alarm AL2, and fault conditions, including the standard relay action. NOTE: The Isolate feature of the GTA-4100R allows you to disable the alarm LED’s, buzzer, and relays during calibration procedures and response tests. When calibration mode is activated, the LED’s, buzzer, and relays will not operate as described in this section. -
Page 41: High Al2 Alarm
1. Follow the established procedure for high alarms. If a procedure is not in place, establish one that is appropriate for your application. 2. After the reading returns to normal, the GTA-4100R automatically silences the buzzer, turns off the AL2 ALARM LED and deactivates the applicable alarm relay. -
Page 42: Normal Operation
4.3 Normal Operation Normal operation is any time the start up procedure has been completed, no calibration or set-up procedures are in progress, and no alarm, or fault condition exists. During normal operation, the GTA-4100R behaves as follows: • The screens displays the current gas concentrations (channel 1 on the top half of the screen, channel 2 on the bottom half of the screen). -
Page 43: Appendix I. Troubleshooting
(Fuse is 3AG-1, 250Volts/1 Amp.) 5. If difficulties continue, contact GasTech Australia for further instruction. 1. Frequent or suspect 1. Make sure that the transmitter wiring to the GTA-4100R is alarms. properly shielded. See the Installation section of the 2. No change in zero Transmitters manual. -
Page 44: Appendix Ii
73-4104 4.5 Power Supplies Twenty-four VDC power must be supplied to each GTA-4100R controller module. The controller module, in turn, supplies 24 VDC power to the transmitters and sample draw adapters connected to it. Two power supplies are available from GasTech Australia for the GTA-4100R:... -
Page 45: Appendix Iii
Selectable on or off Operating -20° to +55°C temperature Operating humidity 0 to 95% RH non-condensing Module dimensions 19” rack case - 3RU high, one 8E width per module Weight Approximately 220g Page 41 © 2008 GasTech Australia Pty Ltd... - Page 46 None Intrinsically safe rating Page 42 © 2008 GasTech Australia Pty Ltd...