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Honeywell AirScan iR Instruction Manual
Honeywell AirScan iR Instruction Manual

Honeywell AirScan iR Instruction Manual

Refrigerant sensor for industrial applications

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Manning
AirScan
Refrigerant Sensor for
Instruction and
Industrial Applications
Installation Manual
Rev A
Instruction and Installation Manual
Rev A
MOUNT ENCLOSURE THIS END UP. DO NOT BLOCK PERFORATED VENT HOLES.
Manning AirScan
Honeywell Analytics
rd
11511 West 83
Terrace
Lenexa, Kansas 66214
Manning AirScan-iR Refrigerant Sensor
800.444.9935 or 913.894.1185
913.894.1296 fax
9138941296fax
TM
iR
sales@manningsystems.com
19100 AirScan-iR-ind 05/2006 REVA Copyright © 2006 Manning Systems, Inc. All Rights Reserved.
www.gasalarm.com
19100AirScan-iR-ind 5/2006 REVA
19072 ECF9NH3 4/2006 REVE
AirScan
Refrigerant Sensor for
Commercial Applications
R
i
TM
1

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Summary of Contents for Honeywell AirScan iR

  • Page 1 Installation Manual Rev A Instruction and Installation Manual Rev A MOUNT ENCLOSURE THIS END UP. DO NOT BLOCK PERFORATED VENT HOLES. Manning AirScan Honeywell Analytics 11511 West 83 Terrace Lenexa, Kansas 66214 sales@manningsystems.com Manning AirScan-iR Refrigerant Sensor 19100 AirScan-iR-ind 05/2006 REVA Copyright © 2006 Manning Systems, Inc. All Rights Reserved.
  • Page 2: Table Of Contents

    Contents Serial number: Section Title Page 1 Sensor Description System Specifications and Sensor Specifications 2 Installation Locating the Sensor Figure 1: Mounting Dimensions for the AirScan Wiring Figure 2: Wiring Diagram for AirScan 3 Operation Start-up Procedure Figure 3: Required LED Status at Start-up Pushbutton Operation, LED Indicators, Adjustment Pots and Test Points Figure 4: Board Component Layout Figure 5: LED Layout...
  • Page 3 Manning AirScan 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 the instructions in this manual.
  • Page 4: Sensor Description

    (Belden #8618 or equivalent). If sensor is SUPER HEAT pass filtered to produce a narrow range of frequencies equipped (—15° F and below), contact Honeywell Analytics characteristic of the refrigerants’ (CFC/HCFC/HFC) for cable recommendations.
  • Page 5: Installation

    Installation Locating the Sensor Very Important: • Sensor must be mounted vertically Because each sensor can only “report” what it is • Never mount sensor flat on a ceiling seeing at the moment, it is very important that the sensor be located where leaks are most likely to •...
  • Page 6 If the AirScan iR is to be used with the AirAlert 96d, please failed sensor will output a 0.5 mA signal. call Honeywell Analytics for specific wiring instructions. Figure 2. Wiring Diagram Output (white) White connects to signal input of...
  • Page 7: Operation

    Operation The AirScan iR has several modes of operation, IMPORTANT: The AirScan iR sensor is factory including two normal run modes, two 4/20 mA loop calibrated and should require minimal adjustments check modes and five calibration modes. These will after installation. This sensor was calibrated at an be explained in Operation, Section C, Modes of altitude of 1,000 ft.
  • Page 8 Operation continued Pushbutton Operation, LED • “Zero” adjustment pot — adjusts output Indicators, Adjustment Pots and calibration of the 4 mA nominal resting point. Test Points • “Span” adjustment pot — adjusts the 20 mA concentration level or unit span/sensitivity. The Manning AirScan iR has two internal push- •...
  • Page 9 Operation continued LED Indicators and Blink Sequence Red Fault LED (all scenarios produce a .5 mA output) Figure 6. LED Blink Sequence • Continuous ON indicates a failed source, low signal, or circuit failure SEQUENCE 1 sec. 2 sec. 3 sec. •...
  • Page 10 Operation continued Figure 7. LED Indicator Summary = Initiated by button press = Green LED = Yellow LED = Red LED See LED indicators and blink sequence descriptions on page 9. Normal Run Mode 4/20 mA Loop Test Mode WITH OUTPUT WITHOUT OUTPUT 4/20 mA LOOP TEST 4/20mA LOOP TEST...
  • Page 11 Operation continued Figure 7. LED Indicator Summary, continued = Initiated by button press = Green LED = Yellow LED = Red LED See LED indicators and blink sequence descriptions on page 9. Fault Indicator Error Sequences LOST FACTORY FAILED 4/20 mA LOW SIGNAL OR POWER SUPPLY OPERATING TEMPERATURE...
  • Page 12 Operation continued Modes of Operation Normal run mode without output filtering This mode outputs a signal that nominally rests at 4 The Manning AirScan iR has various modes of mA and can range continuously from 0 to 27 mA. Any operation and calibration: subtle changes in sensor response will be sent to the mA loop output.
  • Page 13 Operation continued 4/20 mA Loop Test To proceed to the next step in the mA test, press and hold S1 for 1 second or more until the yellow {22 mA full-scale and .5 mA fault check} “calibrate” LED is a medium double blink. See the Start: Press S1 5 times within a two to three second following example.
  • Page 14 Operation continued Calibration/Programming Modes: Exit: To program the “span” setting and exit this mode, press and hold S2 for 1 second or until the Refer to Calibration, Section D before proceeding. yellow “system” LED resumes the state before the Auto “ZERO” Program Function calibration mode was initiated and the yellow “calibrate”...
  • Page 15 Pushbutton S1 Rx LED Tx LED Span Adjust Pushbutton S2 and requires a full calibration before it can reliably read the target gas. See the following example. Should this occur, please contact Honeywell Analytics for assistance! ZERO SPAN SEQUENCE POWER Draw...
  • Page 16 Operation continued Before continuing with the calibration procedure, Non-Filtered Output Mode (no signal deadband) determine which of the two Normal output modes is Start: Press and hold both the “zero” (S1) and best for the control scheme. Filtered output holds a “span”...
  • Page 17 Operation continued STEP 1 STEP 2 4-20 mA Output Calibration Zero Calibration This procedure calibrates the 4/20 mA output to match This procedure sets the internal reference that is a PLC input converter or various devices that interpret indicative of 0 ppm of target gas. It MUST be the 4/20 mA signal output to ensure the 4 mA output performed before proceeding or every other setting rests at a true 4 mA even with minor mismatches in...
  • Page 18 Operation continued Figure 9. Board Component Layout Press and hold the “span” button (S2) for 1 second or more until the yellow “calibrate” LED blinks fast ICSP Programming Port Serial Port and the yellow “system” LED is blinking slowly. See Zero Adjust Pushbutton S1 Rx LED...
  • Page 19 Operation continued Diagnostic Procedures Exit: Press and hold both the “zero” (S1) and “span” (S2) buttons simultaneously for 1 second or more Simple Zero Test until “system” LED is continuous ON. Unit should be This test will ensure the unit is calibrated for a true ready for long-term operation.
  • Page 20 Operation continued During 4/20 mA loop test (22 mA high) w/ Error on output During 4/20 mA loop test (.5 mA low) SEQUENCE SEQUENCE POWER POWER SYSTEM SYSTEM CALIBRATE CALIBRATE FAULT FAULT mA FAULT mA FAULT SOURCE SOURCE ATMOS ATMOS During 4/20 mA loop test (.5 mA low) with Error .5 mA Low Signal Output Test .5 mA Low Signal Output Test for...
  • Page 21 Operation continued Troubleshooting Sensor On-board Diagnostic System It is possible to have the mA output fail during Electrical Interference normal run mode. In some instances a mA output This sensor has been designed to be highly resistant circuit that is incorrectly setup can supply 4 mA to to EMI/RFI using multiple stages of filtering and the load reasonably well;...
  • Page 22 Operation continued IR Source Failure Error on 4/20 mA output or during 4/20 mA test 20 mA high If the IR source signal strength drops to the point that the unit can no longer function satisfactorily, the “fault” SEQUENCE LED will remain continuous ON and the 4/20 mA output will be set to 0.5 mA.
  • Page 23: Maintenance

    Replacement Parts For replacement parts, contact Honeywell Analytics. Be sure to give serial number of unit and model number. Manning AirScan-iR Refrigerant Sensor 18908 AirScan-iR-comm 01/2006 REVA Copyright © 2006 Manning Systems, Inc. All Rights Reserved.
  • Page 24: Limited Warranty

    (18) negligence, or accident or if the Purchaser fails to months of the date of shipment by Honeywell perform any of the duties set forth in this limited Analytics or twelve (12) months from the date of...