Related Manuals for Honeywell CRIR-E1
Summary of Contents for Honeywell CRIR-E1
- Page 1 Solent Gas Consultants Ltd Specialists in Gas Detection Carbon Dioxide CRIR-E1 User Guide Commercial Carbon Dioxide CRIR-E1 [email protected] Tel: 07788 548013...
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Page 2: Table Of Contents
Honeywell CRIR-E1 User Guide TABLE OF CONTENTS GENERAL INFORMATION SENSOR HANDLING AUTOMATIC BASELINE CORRECTION TERMINATION CALIBRATION TICS SELF-DIAGNOS MODBUS REGISTER DEFINITION MODBUS FUNCTION DESCRIPTION Tel: 07788 548013 [email protected]... -
Page 3: General Information
Honeywell CRIR-E1 User Guide GENERAL INFORMATION Honeywell’s CRIR E1 Commercial Carbon Dioxide (CO ) sensor is a single channel, non- dispersive infrared (NDIR) sensor. Within the CRIR E1 is a sensing chamber with an infrared source at one end and a detector fitted with an optical filter at the other end. - Page 4 Honeywell CRIR-E1 User Guide Table 1 - Product Specifcation CHARACTERISTIC PARAMETER Target Gas Carbon dioxide (CO Operating Principle Non-dispersive infrared (NDIR) Standard Range 400 ppm to 2000 ppm, up to 5000 ppm extended range 1, 2 Measurement interval Accuracy ±50 ppm ±5% of reading Typical response time (T90) <120 s...
- Page 5 Honeywell CRIR-E1 User Guide Figure 2. Mounting Dimensions (mm) - for reference only Table 2. Pinout FUNCTION NUMBER UART_RXD UART_TXD UART_R/T bCAL_in/CAL_in PWM output (See CRIR E1 User Manual) Alarm output Vin_(4.5 V to 5.5 V) Tel: 07788 548013 [email protected]...
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Page 6: Sensor Handling
Honeywell CRIR-E1 User Guide SENSOR HANDLING CAUTION CAUTION IMPROPER SENSOR HANDLING EXPOSURE TO HARMFUL GASES • The CRIR E1 is an electrostatic-sensitive Ensure that the CRIR E1 does not come into device (ESD). contact with the following harmful gases: • Handle the CRIR E1 using appropriate ESD •... -
Page 7: Automatic Baseline Correction
Honeywell CRIR-E1 User Guide AUTOMATIC BASELINE CORRECTION (ABC) Honeywell’s CRIR E1’s built-in, self-correcting ABC algorithm allows maintenance-free operation in normal indoor environments. This algorithm automatically calibrates the sensor’s lowest reading over a preconfigured time interval to 400 ppm CO , the expected CO concentration in fresh air, thus compensating for sensor drift. -
Page 8: Termination
0.72 V - 0.05 V to 2 V - 0.1 V Relationship between output voltage (V) V(output) = 0.4 + 0.0008 x C(CO and CO concentration (ppm) Output accuracy ±20 mV 1 The specified parameter relies on the subcontractor's specification and is not tested by Honeywell. Tel: 07788 548013 [email protected]... -
Page 9: Calibration
Saturation voltage 2.3 V to Vin + 0.3 V 1 The specified parameter relies on the subcontractor's specification and is not tested by Honeywell. CALIBRATION With the ABC function on, the sensor readings, which may have drifted due to mishandling during transportation and/or installation, may gradually be recalibrated to the correct numbers. -
Page 10: Self-Diagnostics
Honeywell CRIR-E1 User Guide CAL_in Pin Calibration Two CAL_in Pin calibration types are offered: • bCAL (background calibration): Requires the sensor to be exposed to fresh air (400 ppm CO • CAL (zero calibration): Requires the sensor cell to be completely immersed in a CO free atmosphere. -
Page 11: Modbus Register Definition
Honeywell CRIR-E1 User Guide MODBUS REGISTER DEFINITION Table 6 - Input Registers Definition NAME DESCRIPTION Reserved Reserved Reserved Reserved Temperature Detector Temperature DI 1 – reserved1 DI 2 – reserved1 DI 3 – reserved1 DI 4 – reserved1 Meter Status DI 5 –... - Page 12 Honeywell CRIR-E1 User Guide Table 7 - Holding Registers Definition NAME DESCRIPTION Reserved Reserved Reserved Reserved ABC Period ABC period in hours , default: 180 hours CI 1 - CO2 random calibration point has been performed 0X0000 CI 2 - Reserved2...
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Page 13: Modbus Function Description
Honeywell CRIR-E1 User Guide MODBUS FUNCTION DESCRIPTION The serial port configuration is: 9600, 8, 1, N, N. The sensor is addressed as “Any address” (0xFE). Input Registers Description Values are read from IR using “Read input registers” (function code 04). -
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Honeywell CRIR-E1 User Guide Read Sensor Type ID Master Transmit:
<04> <00> <09> <00> <02> Slave Reply: <04> <04> <00> <00> <18> <00> <8B> Data Explain: <00> <00> <18> <00> is valid data 0x00001800, IR09 low byte + IR10 contains Sensor Type ID 3-bytes value, so this data is 0x001800, it indicates the type of sensor. -
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Honeywell CRIR-E1 User Guide Read ABC Period Master Transmit:
<03> <00> <04> <00> <01> Slave Reply: <03> <02> <00> <27> Data Explain: <00> is valid data 0x00B4, decimal is 180 hours. Setup User Concentration Master Transmit: ... - Page 16 The foregoing is buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchant- ability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, or indirect damages.
- Page 17 Contact Details Solent Gas Consultants Ltd. Richard Chambers Managing Director 07788 548013 [email protected] www.solentgasconsultants.com Important Information Regarding the Use of Sensors in Safety Critical Applications To ensure that the sensor and/or instrument in which it is used, are operating properly, it is a requirement that the function of the device is confirmed by exposure to target gas (bump check) before each use of the sensor and/or instrument.