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infrared CO2 sensor SRH series User Manual

infrared CO2 sensor SRH series User Manual
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infrared CO2 sensor SRH series User Manual - 1

USER MANUAL USERS MANUAL Infrared Carbon Dioxide Gas Sensor CUBIC onil. Wuhan Cubic Road, Fenghuang Industrial Park, Eastlake Hi-tech Development info@gassensor. com.cn

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infrared CO2 sensor SRH series User Manual - 2

USERS MANUAL INFRARED CARBON DIOXIDE SENSOR | cubic

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infrared CO2 sensor SRH series User Manual - 3

USER MANUAL Welcome to use SRH series carbon dioxide gas sensor. It adopts advanced non-dispersive infrared technology (NDIR), which can be integrated in safety and alarming devices, able to be used for medical, environmental monitoring, HVAC, refrigerator etc . The sensor has advantages like easy operation, precise measurement and stable performance, which is an important component for industrial and lab applications. The sensor has voltage output and RS232 output available. Infrared CO2 gas sensor SRH series Working voltage Working current Output voltage Measurement range Zero...

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infrared CO2 sensor SRH series User Manual - 4

USERS MANUAL SRH series Infrared gas sensor Picture is for reference only 2 Functions & Operation 2.1Appearance & I/O definition 2.1.1Appearance INFRARED CARBON DIOXIDE SENSOR | cubic

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infrared CO2 sensor SRH series User Manual - 5

USERS MANUAL 1. Digital output:TTLelectrical level,voltage signal is 0 or 2.5v,pay attention to level switching when connecting external circuit, computer circuit is illustrated below: 2. Connect with CPU(SCM), baud rate: INFRARED CARBON DIOXIDE SENSOR | cubic

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infrared CO2 sensor SRH series User Manual - 6

USERS MANUAL A. If CPU is powered by 2.5 – 3.3V, CO2 gas sensor can be connected directly and make communication. Note: RXD of CO2 gas sensor is connected to TXD of CPU. TXD of CO2 gas sensor is connected to RXD of CPU. B. If CPU is 5V, please change PWL. Here is for reference: 2.2 Operation 2.2.1 Power on Be sure the preparation is OK before Power on: Power connection is right I/O ports connection is right 2.2.2 Power off Sensor must be power off under the standby mode (power off is not allowed when you operating zeroing and calibration). Before power off, the gas sensor should be in the...

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infrared CO2 sensor SRH series User Manual - 7

USERS MANUAL 1. The data in the explanation are all hex data. Such as 46 is hexadecimal [70] 2. [xx] is single byte data(no symbol,0-255) ;(xx) is double byte data, signed integer (-32768 to +32767),the top one is ahead. “―― “ followed by explanation; 3. All the data are integer. It has (100,10,1) times relationship with true data. 4. The length of command byte is [LB]+3. Command Format: Send: [IP] [LB] [CMD] [DF] [CS] [IP] addressfixed as 11 [LB] byte length followed does not include CS [CMD] command [DF] parameter items with command, optional [CS] CS= ( IP +LB+CMD +DF) Response: aWhen the...

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infrared CO2 sensor SRH series User Manual - 8

USERS MANUAL Checking measurement result Send: 11 01 01 ED Response: [ACK] 05 01 [DF1] [DF2] [ST1] [ST2] [CS] Function: Checking measurement result. Remarks: 1).Gas concentration = (DF1*256+ DF2)/ (corresponding multiple) 2).[ST] means status of gas sensor, which give the information of working status of it. For example: to check whether it needs zeroing, sampling signal is correct, user’s options. 1. Check voltage result Send: 11 02 02 [TVM] EB Response: [ACK] 0A 02 [TVM] [FV1] [FV2] [FV3] [FV4] (refVpp) (testVpp) [CS] Function: Look up voltage result. Remarks: 1). [TVM] gas measurement...

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infrared CO2 sensor SRH series User Manual - 9

USERS MANUAL Response: [ACK] 0C 1E [CH1] [CH2] [CH3] [CO2] [CH5] [CH6] [CH7] [CH8][CH9][CH10][CH11][CH12] [CS] Function: to check software version Remark: [CHx] is ASCLL II code. 6. Series number check Send: 11 01 1F CF Response: [ACK] 0B 1FSN1 SN2 SN3 SN4 SN5[CS] Function: to check the series number of the bench Remark: SNn is from 0-9999, five integer consists of 20 bits series number 7. Gas measurement property Check Send: 11 01 0D [CS] Response: [ACK] 06 0D [DF0] [DF1] [DF2] [DF3] [DF4] [CS] Function: to check gas concentration, decimal digitals, gas components, unit etc. Remark: 1) 2)...

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