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Related Manuals for Qel QTS-6100 Series
Summary of Contents for Qel QTS-6100 Series
- Page 1 MODEL QTS-6100 SERIES ANALOG TRANSMITTER/SENSOR INSTALLATION OPERATION AND MAINTENANCE MANUAL QUATROSENSE ENVIRONMENTAL LTD. 5935 OTTAWA STREET, PO BOX 749 RICHMOND, ONTARIO CANADA K0A 2Z0 PHONE: (613) 838-4005 FAX: (613) 838-4018 www.QEL.dedesco.com...
- Page 2 GENERAL SPECIFICATIONS DIMENSIONS: Explosion Proof: 5.7”W x 8.2”H x 4.2”D (145mm x 210mm x 110mm) POWER SUPPLY: 24 VDC (12-36 VDC) SIGNAL: 4 - 20 mA Linear (maximum over scale: 25 mA) Zero = 4.00 mA ± 0.1 mA WIRING: 2 - Wire 14 - 24 AWG SENSOR TYPE:...
- Page 3 QEL shall not be responsible for any liability arising from auxiliary interfaced equipment nor any damage resulting from the installation or operation of this equipment. QEL’s total liability is contained as above with no other liability expressed or implied, as the purchaser is entirely responsible for installation and maintenance of systems.
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Page 4: Table Of Contents
QTS-6000 Series Analog Transmitter/Sensor TABLE OF CONTENTS 1. INTRODUCTION........................1 2. BASIC DESCRIPTION ......................2 3. SPECIFICATIONS AND ORDERING INFORMATION ............3 3.1 M ..................3 ODEL UMBER RDERING 3.2 S ................3 ENSOR RANSMITTER PECIFICATIONS 4. THEORY OF OPERATION ..................... 4 4.1 E ................ - Page 5 QTS-6000 Series Analog Transmitter/Sensor LIST OF FIGURES 1 - T ................4 IGURE OXIC ONSTRUCTION CHEMATIC RAWING 2 -T ......................5 IGURE RANSMITTERS 3 - I ..................... 6 IGURE NTRINSICALLY NSTALLATION 4 - M ....................8 IGURE AXIMUM URDEN ESISTANCE 5 - J ..........................
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Page 6: Introduction
Thank you for purchasing this quality product from Quatrosense Environmental Ltd. (QEL). We want you to enjoy many years of effective use and protection from your QTS-6100 Series Universal Electrochemical Toxic Sensor/Transmitter. This manual is intended to provide you with all of the details you need to properly install, operate, and maintain your equipment. -
Page 7: Basic Description
It features improved performance and the ability to configure the transmitter for any of long list of electrochemical sensor elements offered by QEL. The transmitters operate over a wide tolerance of DC power and provide a 4 to 20 mA DC output in a two-wire connection. -
Page 8: Specifications And Ordering Information
QTS-6000 Series Analog Transmitter/Sensor 3. SPECIFICATIONS AND ORDERING INFORMATION 3.1 Model Number Ordering Code ENSOR ELECTION AND PECIFICATION ABLE QTS - 6 0 0 0 ODEL TANDARD ºC ANGE Transmitter Type Non-Indicating Analog Output Transmitter Only None Hydrogen Sulphide 0 to 25 -40 to +50 Gas Type Hydrogen Cyanide... -
Page 9: Theory Of Operation
QTS-6000 Series Analog Transmitter/Sensor 4. THEORY OF OPERATION 4.1 Electrochemical Sensor Elements The sensor portion of the QTS-6100 is a compact City Technology electrochemical sensor. These sensors are micro-fuel cells that are completely sealed so as to be maintenance free and stable for long periods. The measurement is a gas-in-liquid chemical reaction rather than a surface area measurement. -
Page 10: Two Wire Transmitters
QTS-6000 Series Analog Transmitter/Sensor 4.2 Two Wire Transmitters The standard transmitter output signal is 4 - 20 mA DC. If the current draw required for operation of the transmitter is less than 4 mA DC, then only two wires are needed; for power and signal (See figure 2). The connection to ground is supplied by the monitoring equipment, which measures the voltage developed by the current across a precision resistor. -
Page 11: Figure 3 - Intrinsicallys
Figure 3 - Intrinsically Safe Installation For hazardous areas, the QTS-6100 SERIES is available in an explosion proof housing CSA, FM, and UL rated to Class 1 Division 1 Groups A, B, C and D. The sensor assembly attached to this enclosure is also rated for Group A (Acetylene). -
Page 12: Installation
QTS-6000 Series Analog Transmitter/Sensor 5. INSTALLATION *WARNING* STATIC ELECTRICITY - Installation, wiring, configuration, or other activity may require handling or disassembly of the transmitter circuit card assemblies (CCA). Handling of a CCA without proper precautions can expose the electronic components to the possible damage from static electricity discharge. -
Page 13: Wiring
Failure to do this could result in water inside the enclosure, which will cause a terminal failure of the electronics. 5.2 Wiring 1 5 0 0 The QTS-6100 Series Sensor/Transmitter is a low power consumption transmitter requiring only two 1 2 5 0 wires for power and signal. -
Page 14: Configuration
QTS-6000 Series Analog Transmitter/Sensor 6. CONFIGURATION NOTE: If you have ordered a complete sensor/transmitter assembly it will come from the factory properly configured and calibrated for the specific sensor element selected. The following configuration information is provided for when a replacement transmitter must be configured or an existing transmitter re-configured to accept a different sensor element type. -
Page 15: Figure 6 - Configurationj
QTS-6000 Series Analog Transmitter/Sensor Power/Wiring Terminals Top Plate Upper CCA Lower CCA Figure 6 - Configuration Jumpers - Right Side Figure 7 - Configuration Jumpers - Left Side Locations Locations Biasing Battery Code Sensor Part No. JP13 JP14 Biasing: 6300-0006 JP1 = None 6300-0013 JP2 = Positive... -
Page 16: Start-Up And Commissioning
8. ROUTINE MAINTENANCE 8.1 Calibration Recommended calibration of the QTS-6100 Series Sensor/Transmitter is every 90 days, or as necessary. The user should take into account actual installation environment and the possibilities for failure due to water or corrosive atmospheres. The seriousness of a failure to alarm or the lack of precision in that location should also be considered and calibration periods adjusted accordingly. -
Page 17: Procedure
QTS-6000 Series Analog Transmitter/Sensor 8.1.2 P ROCEDURE 8.1.2.1 Set-Up Two small jacks are on the upper CCA of the transmitter, accessible through holes on the cover plate (see figure 8). These jacks will accept standard test leads from most hand held multimeters. Set the digital multimeter on a DC milliamp range to read up to 20 mA DC and connect the test leads to the test jacks. -
Page 18: Sensor Element Replacement
QTS-6000 Series Analog Transmitter/Sensor 8.1.2.3 Span Adjustment A) Connect the flow regulator to the span gas cylinder (or other span gas source). B) Apply span calibration gas while monitoring the output of the sensor. Allow output to stabilize. C) Adjust the span potentiometer until the meter reads the appropriate current ±1.5%. D) Turn off the span gas and remove from the flow regulator. -
Page 19: Industrial Explosion -Proof Enclosures
QTS-6000 Series Analog Transmitter/Sensor 8.2.1 I NDUSTRIAL XPLOSION ROOF NCLOSURES A) Remove cap and screen from sensor assembly. B) Remove old sensor element, including O-ring seal. C) Install new sensor element, including O-ring seal. Take care to align the pins to the socket. D) Replace cap and screen on sensor assembly. -
Page 20: Field Trouble Shooting
QTS-6000 Series Analog Transmitter/Sensor 9. FIELD TROUBLE SHOOTING 9.1 Sensor Life The response to gas of electrochemical sensors will reduce with time due to oxidation on the electrodes. The rate of reduction is dependent upon such factors as ambient temperature, humidity, and exposure to gas. In order to compensate for this, the gain of the transmitter can be increased when the unit is calibrated in the field by adjusting the gain (span) potentiometer. -
Page 21: Installation And Application Problems
If the supply wire and the signal wire are reversed, then the Fuse may blow (0.5 Amp Pico-fuse, available at most controls suppliers or QEL Pt No 6700-0018-0). The only path for current to flow is through the signal line. Therefore the most likely occurrence will be that the Burden Resistance (monitor input resistance plus wiring resistance plus intrinsic safety barrier if present) will limit the current well below the fuse limit. -
Page 22: Overvoltage Supply
QTS-6000 Series Analog Transmitter/Sensor 9.3.2 O VERVOLTAGE UPPLY Symptom: Constant High output. The input is limited by a Zener diode and fuse. Overvoltage may blow the onboard Pico-fuse. The only path for current to flow is through the signal line. Therefore the most likely occurrence will be that the Burden Resistance (monitor input resistance plus wiring resistance plus intrinsic safety barrier if present) will limit the current well below the fuse limit (see 9.3.1 above). -
Page 23: Rfi/Emi Effects
Symptom: Unstable, wandering output; spikes, drift, possibly false alarms. The QTS-6100 Series Universal Sensor/Transmitter has been designed to provide protection against Radio Frequency Interference (RFI) and Electro-Magnetic Interference (EMI). The unit has been tested against radiated signals of 4 watts at high frequencies and a distance of 1 meter.