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Manning AirScan-iR Refrigerant Sensor 19100 AirScan-iR-ind 05/2006 REVA  Copyright © 2006 Manning Systems, Inc. All Rights Reserved. 1 

AirScan

TM

i

R

 

 

Instruction and  

Installation Manual 

Rev A 

Refrigerant Sensor for 

Commercial Applications 

Instruction and Installation Manual 
Rev A 

Manning 

AirScan

TM

iR 

Refrigerant Sensor for 
Industrial Applications 

Honeywell Analytics 
11511 West 83

rd

 Terrace  

Lenexa, Kansas 66214 

[email protected] 

800.444.9935 or 913.894.1185  

www.gasalarm.com 

913.894.1296 fax  

19100AirScan-iR-ind 5/2006 REVA 

9138941296fax

19072 ECF9NH3 4/2006 REVE

Manning AirScan

MOUNT ENCLOSURE THIS END UP.  DO NOT BLOCK PERFORATED VENT HOLES.

Summary of Contents for AirScan iR

Page 1: ...lications Instruction and Installation Manual Rev A Manning AirScan TM iR Refrigerant Sensor for Industrial Applications Honeywell Analytics 11511 West 83rd Terrace Lenexa Kansas 66214 sales manningsystems com 800 444 9935 or 913 894 1185 www gasalarm com 913 894 1296 fax 19100AirScan iR ind 5 2006 REVA 9138941296fax 19072 ECF9NH3 4 2006 REVE Manning AirScan MOUNT ENCLOSURE THIS END UP DO NOT BLOC...

Page 2: ... Blink Sequence 9 Figure 7 LED Indicator Summary 10 Normal Run Modes 10 4 20 mA Loop Test Mode 10 Calibration Mode 10 Fault Indicator Error Sequences 11 C Modes of Operation 12 Normal Run Modes 12 4 20 mA Loop Modes 13 Calibration Programming Modes 14 D Calibration 15 Figure 8 Board Component Layout 15 4 20 mA Output Calibration 17 Zero Calibration 17 Figure 9 Board Component Layout 18 Span Calibr...

Page 3: ...of the sensor ensure proper installation and demonstrate start up and routine maintenance procedures This manual must be carefully followed by all individuals who have or will have the responsibility for using or servicing the Manning AirScanTM iR Sensor Warranties made by Honeywell Analytics with respect to this equipment will be voided if the equipment is not used and serviced in accordance with...

Page 4: ...d System Specifications Electrical Power 24 Volts DC regulated 1 0 amp Output Linear 4 20 mA output into a load resistor of 500 ohms maximum Cable Length to Sensor 1 000 feet maximum Unit Enclosure NEMA 4 gasketed molded fiberglass reinforced polyester Non painted non rusting construction appropriate for food areas UL 508 listed CSA certified for use with industrial control equipment Cable Recomme...

Page 5: ...idity and wash down Take air movement and ventilation patterns into account To prevent electrical interference keep sensor and wire runs away from mercury vapor lights variable speed drives and radio repeaters Protect sensor from physical damage fork lifts etc Do not mount the sensor over a door in a refrigerated area For highly critical locations more than one sensor should be installed in each r...

Page 6: ... specific wiring instructions Ground the shield at the main control panel Connect the shield wire in the sensor terminal block labeled shield Tape all exposed shield wire at the sensor to insulate it from the enclosure All penetrations into a refrigerated room should be sealed to prevent condensate from forming in the conduit and dripping into the sensor enclosure Make drip loops for cables going ...

Page 7: ...ontinuous ON Both Fault LED s are OFF Green source LED is blinking once every 2 seconds NOTE For cold humid adverse environmental conditions the ATMOS LED may be turning on and off periodically In addition the system LED may be blinking or continuous ON also described in later sections IMPORTANT The AirScan TM iR sensor is factory calibrated and should require minimal adjustments after installatio...

Page 8: ...st be pressed the correct number of times and at the correct rate When a multi press sequence must be performed the button must be pressed rapidly and evenly lifting one s finger completely from the actuator for each consecutive press For press and hold activations one s finger must always be applying a down pressure without disruption for the specified time in order to activate the desired mode S...

Page 9: ...tside the operating temperature range Fast blink indicates the signal drifted below 4 mA and needs to be re calibrated only in non filtered output run mode no dead band Red mA Fault LED attempts to output 5 mA fault signal Fast blink indicates 4 20 mA loop failure or load resistance too high Green Source LED One blink every 2 seconds indicates when source is energized and also that the source is n...

Page 10: ...CALLY 3 G Green LED Y Yellow LED R Red LED Initiated by button press POWER SYSTEM CALIBRATE FAULT mA FAULT SOURCE ATMOS G G G R R Y Y 4 20 mA LOOP TEST 22 mA HIGH 1 4 20mA LOOP TEST 5 mA LOW 1 NOTE 1 Error on output will result in fast blink on red mA FAULT LED LED OFF N A N A N A N A OFF N A N A N A N A POWER SYSTEM CALIBRATE FAULT mA FAULT SOURCE ATMOS NOTE 1 Indicates that Zero function is init...

Page 11: ...ation data Contact Manning Systems for technical support NOTE 2 Indicates failed 4 20 mA output signal Load resistance is too high G G G R R Y Y LOST FACTORY CALIBRATION 1 LED FAILED 4 20 mA OUTPUT2 LOW SIGNAL OR FAILED SOURCE OR CIRCUIT POWER SUPPLY VOLTAGE TOO LOW OPERATING TEMPERATURE RANGE EXCEEDED N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A ...

Page 12: ...re until the system LED is continuous ON then release both buttons If the system LED is blinking fast this mode cannot be engaged and the factory needs to be contacted See the following example Normal run mode without output filtering This mode outputs a signal that nominally rests at 4 mA and can range continuously from 0 to 27 mA Any subtle changes in sensor response will be sent to the mA loop ...

Page 13: ... 22 mA Full Scale Output Test To proceed to the next step in the mA test press and hold S1 for 1 second or more until the yellow calibrate LED is a medium double blink See the following example The output should be between 4 and 6 mA 5 mA Fault Output Test Exit Press and hold S1 for 1 second or more until the yellow system LED resumes the state before the mA test was initiated and the yellow calib...

Page 14: ...and exit this mode press and hold S2 for 1 second or until the yellow system LED resumes the state before the calibration mode was initiated and the yellow calibrate LED turns off 4 mA Output Calibration Programming Mode Start Press and hold S1 for 7 seconds or until the yellow system LED turns continuous ON and the yellow calibrate LED blinks slowly See the following example Once in this mode the...

Page 15: ...cedure will require use and knowledge of the following tools within the sensor Zero adjustment pot adjusts output calibration of the 4 mA nominal resting point Span adjustment pot adjusts the 20 mA concentration level or unit span sensitivity Pushbutton S1 used to initiate the auto zero function and program the 4 mA output calibration Pushbutton S2 used to program the span setting In addition ther...

Page 16: ... output mode which locks the output at 4 mA for signal readings of 4 to 4 6 mA This masks surrounding abrupt adverse environmental transients that would cause a small short term anomaly on the 4 mA resting point for a near 0 ppm reading of the target gas In this mode the yellow system LED will be ON See the following example Non Filtered Output Mode no signal deadband Start Press and hold both the...

Page 17: ...ers are now programmed into memory STEP 2 Zero Calibration This procedure sets the internal reference that is indicative of 0 ppm of target gas It MUST be performed before proceeding or every other setting will be offset and inaccurate The zero can be initiated at any time as long as a neutral gas is flowing through the calibration port or the surrounding air is known to be FREE of any target gas ...

Page 18: ...an potentiometer counter clockwise until the signal is near 20 mA Because there is a slight delay in potentiometer movement make small adjustments and wait for the output to change because adjustment response is delayed between source pulses Wait until the output signal has stabilized to within 02 mA of signal deviation change Adjust the span potentiometer again until the output reads around 20 mA...

Page 19: ...sting at the optimum 4 mA point Simple Zero test NO Dead band mode 0 to 26 mA Exit Press and hold both the zero S1 and span S2 buttons simultaneously for 1 second or more until system LED is continuous ON Unit should be ready for long term operation 4 20 mA Output Loop Integrity Check 22 mA High Signal Test STEP 1 Start Set meter to mV DC place meter leads on Test and Test respectively see Figure ...

Page 20: ...gnal line This is caused by resistive shorts to power or other voltage sources that can raise the 5 mA target current on the line Moisture in the connector can cause stray voltage to migrate from the 24V DC pin over to the 4 20 mA signal line Check connectors or refer to the troubleshooting section or error code analysis section for assistance During 4 20 mA loop test 5 mA low During 4 20 mA loop ...

Page 21: ...0 mA to the load when required Therefore the system will place a fault condition out on the mA loop output and flash the mA fault LED indicating the output wiring is not correct or load resistance is too high To properly ensure the load is correct during the 20 mA or high 4 20 mA integrity test the output circuit dynamic range is tested to its fullest extent If the mA fault LED blinks during this ...

Page 22: ... Refrigerant Present The AirScan TM iR is designed to be quite specific to CFC HCFC HFC s that are colorless odorless gases which can t be sensed by humans at low levels Always double check with another instrument before assuming refrigerants are not present Performing a zero and a span calibration using certified calibration gas will confirm or correct the sensor s reading IR Source Failure If th...

Page 23: ...odically sensors should be exposed to refrigerant sample and the results logged For proper operation it is essential that the test and calibration schedule be adhered to Honeywell Analytics recommends the following maintenance schedule Calibration should be performed with certified calibration gas every six months Calibration kits are available from Honeywell Analytics All tests and calibrations m...

Page 24: ...at the gas sensor has been expended rather than failed prematurely this limited warranty shall not apply to the Product C This limited warranty does not cover consum able items such as batteries or items subject to wear or periodic replacement including lamps fuses valves vanes sensor elements cartridges or filter elements 3 Warranty Limitation and Exclusion Honeywell Analytics will have no furthe...

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