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Summary of Contents for Crowcon 40/40I
- Page 1 Crowcon F-Gas Detector Infra-Red SF and Refrigerant Gas Detector Installation, Operating and Maintenance Instructions M070029 Issue 1 January 2014...
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Page 2: Table Of Contents
F-Gas Detector Instructions Table of contents General.......................... 3 Installation........................4 2.1. Operating voltage and analogue outputs (general) ..........4 2.2. Installation ......................5 2.3. Compensation of the ambient pressure..............7 Start-up.......................... 7 3.1. Wiring instructions....................7 3.2. Analogue output: (0)4-20mA ................... 8 3.3. -
Page 3: General
F-Gas Detector Gas Detector Instructions 1. General The F-Gas detector provides provides the benefits of the IR gas sensor technology IR gas sensor technology within a robust enclosure. Rear Casing Interface PCB Interface PCB Front Casing Figure 1: F-Gas Detector Layout The sturdy, IP54-protected casing protected casing houses the IR sensor, a user interface with LED status user interface with LED status... -
Page 4: Installation
Any mechanical damage, such as opening of glued pipe connections or gaskets or the loosening of screws will result in the termination of all will result in the termination of all liability and warranty granted by liability and warranty granted by Crowcon Detection Instruments Ltd. Crowcon Detection Instruments Ltd. 2. Installation 2.1. -
Page 5: Installation
F-Gas Detector Gas Detector Instructions The connection of the internal IR sensor module to the interface electronics is via a 4 The connection of the internal IR sensor module to the interface electronics is via a 4 The connection of the internal IR sensor module to the interface electronics is via a 4-pin data cable (Fig. - Page 6 F-Gas Detector Instructions The placement of sensors should be determined following advice of experts having specialist knowledge of gas dispersion and the plant processing equipment as well as safety and engineering issues. The agreement reached on the locations of sensors should be recorded. Gently prize-open the flaps using a screw driver being careful to not damage the flaps (see fig.
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Page 7: Compensation Of The Ambient Pressure
F-Gas Detector Instructions Mount device vertically to the wall using the 4 screw holes (fig. 7) with the cable gland pointing downwards. Figure 7: mounting holes Mounting hole spacing: 127.5mm x 62.5mm. Mounting hole diameter: 4mm. Warning: never install the detector with the front panel facing upwards. Doing so may lead to the IR sensor filter becoming blocked by dust/contaminants which could prevent gas from reaching the sensor. -
Page 8: Analogue Output: (0)4-20Ma
5mm. Crowcon strongly recomends installation using screened cables Crowcon strongly recomends installation using screened cables Crowcon strongly recomends installation using screened cables to avoid signal interference. 3.2. Analogue output: (0)4... -
Page 9: Use Of The Voltage Output
F-Gas Detector Gas Detector Instructions The analog current output is able to The analog current output is able to indicate several different conditions. This complies with several different conditions. This complies with the NAMUR NE43 standards: the NAMUR NE43 standards: 0 to 2.8mA Fault 3.2 to 3.6mA... -
Page 10: Wire Breaks
F-Gas Detector Instructions JP6 connected (15V DC supply voltage required) 0..10V When using the above mentioned configuration, the following voltage values can be connected at the output: 0-20mA (JP3 not connected) 4-20mA (JP3 connected) 0V – 2V 0.4 V – 2V 2V (JP4) 0V –... -
Page 11: Operating The Transmitter Using The Key-Pad
F-Gas Detector Instructions 4. Operating the transmitter using the key-pad The control panel (figure 10) of the transmitter is integrated in the front cover. This is required if zero or span calibration has to be carried out. The following operating and display functions are available: Display elements: STATUS STATUS-LED 3-colours (red, yellow, green) -
Page 12: Regular Operation
4.5. Maintenance Crowcon recommends the detector is zeroed and tested with gas every 12 months as a minimum. The sensor may be zeroed in clean air, and the target gas must be applied at a known concentration to verify correct sensor response. -
Page 13: Exiting Maintenance Mode, Taking Over Changes
F-Gas Detector Instructions The STATUS-LED will then change to signalization, flashing red for 3 seconds and the change to “Regular operation” mode indicated by the STATUS-LED light up green. Generally, maintenance mode will also be exited without taking over any changes if the user has not made any entries for 30 minutes. -
Page 14: Span-Calibration
F-Gas Detector Instructions Keep the ZERO pressed for 3 seconds. Now, the user must apply the correct sample gas for the ZERO-calibration using the available calibration adapter (typically air or nitrogen. In case of doubt, please contact the supplier). If a stable value is found within a time window (60 seconds) regarding the concentration and this value is found in a plausible value range, the ZERO-LED will change from flashing yellow to steady yellow. - Page 15 F-Gas Detector Instructions Now, the user is able to set the desired concentration value of the output signal by using the UP and DOWN keys. For this, the relevant set value can be monitored live at the analogue output. Pressing the UP or DOWN keys for longer will lead to an auto-repeat. This feature is helpful for the adjustment for a larger range.
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Page 16: Information Sheet, Process Of Operation And Displays
F-Gas Detector Instructions 4.11. Information sheet, process of operation and displays Power STAT STAT STAT Measur e: St ar t up: Failur e: Sensor Out of Sensor Sensor SPAN SPAN SPAN found Range scan br oken ZERO ZERO ZERO Sensor br oken 3 s lat er no key for... -
Page 17: Specifications
F-Gas Detector Instructions 5. Specifications Measuring Principle: Non-dispersive infrared (NDIR) Range: 0-1000ppm Resolution: 1ppm Start-up time: <120 seconds Size: 151 x 80* x 60mm (W x H x D) *Total width with cable gland: 102mm Weight: 0.25Kg Ingress Protection: IP54 Power: 12-28Vdc Analogue Output:... -
Page 18: Product Options
F-Gas Detector Instructions 6. Product options The required gas calibration must be stipulated when ordering a detector. Refer to the labels fixed to the detector to determine the target gas. Pure Fluids: Fluids Formula Name Exposure Detector Part Number Limit Chlorodifluoromethane 1000ppm HCFC 22... -
Page 19: Warranty
(“CRN”). It is essential that the address label is securely attached to the outer packaging of the returned goods. Units returned to Crowcon as faulty and are subsequently found to be ‘fault free’ or requiring service, may be subject to a handling and carriage charge. - Page 20 Fax: +44 (0) 1235 557749 Website: http://www.crowcon.com Email: crowcon@crowcon.com Website: http://www.crowcon.com USA Office China Office Crowcon Detection Instruments Ltd Crowcon Detection Instruments Ltd (Beijing) 1455 Jamike Ave. Unit 316, Area 1, Tower B, Chuangxin Erlanger Building KY 41018 Hongda North Road, Beijing Economic...
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