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...
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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.
(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.
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 •...
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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...
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.
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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- •...
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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. •...
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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...
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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...
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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.
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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.
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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”...
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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...
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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”...
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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...
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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...
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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.
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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...
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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;...
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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.
(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...