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Photoionization Detector Module PIM CPN

User Manual

PIM_CPN - User Manual (en) - 1.08.docx

Analytical Control Instruments GmbH, Volmerstraße 9A, 12489 Berlin, Germany, www.aci-berlin.com

Page 41 of 48

13

Maintenance and Service

NOTICE

The module contains electronic components, which react sensitively to electrostatic
discharge (ESD). Work on or in the unit must be done only by qualified personal and in full
compliance with the appropriate instructions and pertinent regulations.

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Summary of Contents for PIM CPN

Page 1: ... CPN User Manual PIM_CPN User Manual en 1 08 docx Analytical Control Instruments GmbH Volmerstraße 9A 12489 Berlin Germany www aci berlin com Page 1 of 48 Photoionization Detector Module PIM CPN User Manual from software version 1 04 050 ...

Page 2: ... User Manual en 1 08 docx Analytical Control Instruments GmbH Volmerstraße 9A 12489 Berlin Germany www aci berlin com Page 2 of 48 Analytical Control Instruments GmbH Volmerstraße 9A D 12489 Berlin Germany Analytical Control Instruments GmbH All rights reserved ...

Page 3: ... Instrument Warranty 11 5 The Module 12 5 1 Connection overview 12 5 2 Electrical connections 13 5 3 Module connectors 14 5 3 1 X1 Module connector 14 5 3 2 X2 Lamp connector 14 5 4 Gas supply 15 6 Installation hints 17 7 Operation 18 7 1 Using the module 18 7 2 Measurement values 20 7 3 Measurement result resolution 20 8 Measurement config 21 8 1 Calibration method 21 8 2 Gas identification and r...

Page 4: ...tion register 35 11 3 2 Module control and status register 35 11 3 2 1 Module control register data 36 11 3 2 2 Module status register data 37 11 3 3 Module measurement values data registers 38 11 3 4 Module measurement config data registers 38 11 3 5 Module calibration data registers 38 11 3 6 Module lamp information data registers 39 12 Mechanical Drawings 40 13 Maintenance and Service 41 13 1 H...

Page 5: ...th an ionization potential 10 6 eV in air The ionization source is a high performance vacuum ultraviolet VUV hollow cathode lamp with an energy of 10 6 eV With its ceramic discharge channel the stability is improved and a longer service life of up to 15 000 hours and more will be achieved With its built in electronics and microcontroller as well as a combined humidity temperature sensor it provide...

Page 6: ...Typical 10 ppb Signal resolution Dynamic up to 0 01 ppm Response time T90 10 s Influence of humidity and temperature compensated between 0 50 C and 0 90 rH Operating conditions 10 60 C 0 95 rH non condensing 90 to 110 kPa Storage conditions 20 60 C 0 95 rH non condensing 90 to 110 kPa Gas flow required 200 300 ml min monitored dust and water protection filter at sample inlet required PID lamp life...

Page 7: ...m Page 7 of 48 3 1 Absolute maximum ratings Parameter Min Max VCC 3 00 VDC 5 25 VDC Digital interface 0 50 VDC VCC level 0 50 VDC 5 25 VDC 3 2 Electrical characteristics Digital interface Parameter Min Max V in high VCC level 400 mV V in low 600 mV with internal pull up min 5 kΩ V out high VCC level x 0 67 at load 20 µA internal pull up typ 10 kΩ V out low 600 mV at load 1mA ...

Page 8: ...ortant in avoiding injury or damage Observe and follow these cautions and regulations to avoid accidents and damage These terms and symbols are explained below DANGER Indicates a hazardous situation which if not avoided WILL result in death or serious injury WARNING Indicates a hazardous situation which if not avoided COULD result in death or serious injury CAUTION Indicates a hazardous situation ...

Page 9: ...instructions as well as the information for the use and operation of the product must be carefully read and observed Furthermore the national regulations applicable in the user s country must be taken into account for a safe use Alternative use or use outside this specification will be considered as non compliance This also applies especially to unauthorized alterations to the product and to commi...

Page 10: ...ure proper overall operation of the device is to check it with a known concentration of the gas for which it has been calibrated Consequently calibration checks must be included as part of the routine inspection of the system As with all modules of these types high levels of or long exposure to certain compounds in the tested atmosphere could contaminate the sensor In atmospheres where the module ...

Page 11: ...racticable manufacturer reserves the right to charge for any site attendance where any fault is not found with the equipment Manufacturer shall not be liable for any loss or damage whatsoever or howsoever occasioned which may be a direct or indirect result of the use or operation of the contract goods by the buyer or any party This warranty covers modules and parts sold to the buyer only by author...

Page 12: ...struments GmbH Volmerstraße 9A 12489 Berlin Germany www aci berlin com Page 12 of 48 5 The Module 5 1 Connection overview Connection diagram PID sensor Controller Pressure and flow detection Temperature and humidity sensor PID lamp VCC 3 00 5 25 VDC UART I2C VCC level Lamp supply VCC control Gas out Gas in ...

Page 13: ... of 48 5 2 Electrical connections Wiring diagram VCC level equal to interface level Wiring diagram VCC level different to interface level PID module Power supply µController UART TxD UART RxD I2C SCL I2C SDA UART TxD UART RxD I2C SCL I2C SDA Level shift PID module Power supply µController UART TxD UART RxD I2C SCL I2C SDA DC DC UART TxD UART RxD I2C SCL I2C SDA Level module Level µC ...

Page 14: ...nnector Type Manufacturer JST part number BM06B SRSS TB LF SN X1 1 VCC Module Supply Voltage input X1 2 GND Ground X1 3 TxD Module UART Transmitter Line output internal pull up 10 kΩ X1 4 RxD Module UART Receiver Line input internal pull up min 5 kΩ X1 5 SDA Module I2C Serial Data Line internal pull up 10 kΩ X1 6 SCL Module I2C Serial Clock Line internal pull up 10 kΩ 5 3 2 X2 Lamp connector Lamp ...

Page 15: ...m active gas source will need depending from pollution of dust and water filter 20 mbar to max 100 mbar overpressure to realise 200 300 ml min flow through module Gas flow scheme with constant flow of measurement gas source at gas input Dust and liquids must be kept away from module internal gas paths The pump must draw out the gas from the PID module Thereby gas and particle contamination from pu...

Page 16: ...ntrol Instruments GmbH Volmerstraße 9A 12489 Berlin Germany www aci berlin com Page 16 of 48 The module status information contains two flow indications flow low gas flow too low measurement result integrity loss and module may be damaged flow over gas flow too high measurement result integrity loss ...

Page 17: ... a uniform gas flow Do not enter the MEASURE state without appropriate gas flow USAGE PLACE THE MODULES IN A THERMALLY ISOLATED ENVIRONMENT The PID sensor is sensitive against fast gradients of temperature and humidity To achieve the best accuracy it is recommended that the module is place in a thermal insulated environment NOTICE The module contains electronic components which react sensitively t...

Page 18: ...nds Thereby the lamp is switched off and on and is tested On successful lamp test the MEASURE state is entered When in MEASURE state the gas flow indicator value should be around 100 When low flow is detected for 60 seconds the module enters IDLE state by itself and switches off the lamp The lamp check may be repeated at any time by sending the appropriate command When in ERROR state the lamp is s...

Page 19: ...te enter MEAUSRE state Action start read the measurement result Action values and module state Action state Action UART command I2C data start pid start Control register set D00 lamp check pid lampcheck Control register set D01 stop pid stop Control register set D02 values pid values Read measurement data registers state pid state Read Status register error pid error Read Error register reboot pid...

Page 20: ...pensated measurement chamber current in pA units Temperature Measurement chamber temperature may differ from ambient temperature in C units Humidity Measurement chamber humidity may differ from ambient humidity due to over temperature in rH units Flow indicator Measurement chamber gas flow indicator in units 7 3 Measurement result resolution Measurement result Rounded to resolution result 5 ppm 0 ...

Page 21: ... measurement config data can be readed and written with UART command and I2C data registers 8 1 Calibration method The module supports two methods of calibration standard calibration with known concentration of ISOBUTENE in air extended calibration with known concentration or as kind of indicator of VOC components In standard calibration method the span gas sensor current is validated to span gas ...

Page 22: ...range of the module The procedure step by step Connect and start the measurement on the module as described Action start Apply ZERO gas Read the measurement values from the module and wait for stabilizing Action values Keep the compensated current value for ZERO calibration point Apply SPAN gas Read the measurement values from the module and wait for stabilizing Action values Keep the compensated ...

Page 23: ...ite with no error as answer Set control register D17 Check for status register D17 is set save pid savedata Set control register D16 Invalid calibration values may be caused by MEASURE state not started no clean air applied during ZERO calibration step no or inappropriate calibration gas applied during SPAN calibration step ZERO calibration data compensated current e g 14 000 pA concentration 0 0 ...

Page 24: ...on A transmission is always started by the master The master after that expects an appropriated response of the slave USAGE DO NOT USE UART AND I2C TOGETHER The UART baudrate is selected by I2C lines levels at device startup Using UART and I2C together may result in wrong baudrate selection 10 1 Baudrate selection Since software version 1 04 050 the UART baudrate can be selected by I2C lines level...

Page 25: ... DATA ETX CHK 7 CHK 0 EOT 0x01 HEX 0x02 command SPACE parameter 0x03 HEX 0x04 calculate checksum over this area SOH Start of Header 0x01 ADDR Device address 32 bit HEXSTRING 8 byte SOT Start of Text 0x02 DATA Command SPACE parameter ASCII or UTF 8 encoded Command Command part Max 32 byte Min 1 byte SPACE Space character 0x20 Parameter Parameter part Max 256 byte ETX End of text 0x03 CHK Checksum C...

Page 26: ... static uint Crc32 byte buffer uint offset uint count const uint polynomial 0xEDB88320 uint crc uint MaxValue for uint index offset index offset count index crc buffer index for uint bit 0 bit 8 bit crc crc 1 crc 1 polynomial return crc Code example C or C uint32_t Crc32 const void buffer uint32_t offset uint32_t count const uint32_t polynomial 0xEDB88320 uint32_t crc 0xFFFFFFFF uint8_t src uint8_...

Page 27: ...e section format The message section is formatted as ASCII text and consists of a command and a parameter A space character SPACE separates command and parameter If there are more than one value in the parameter the values are separated by a semicolon command SPACE parameter command SPACE parameter0 parameter1 parameter2 Example device CPN Sensor Device pids values 12 334 35 345 53 47 95 9 956 1 1...

Page 28: ...f the module Parameter sw Software version string Example M device software S device software 1 02 030 Command device hardware device hardware hw Description Get hardware version of the module Parameter hw Hardware version string Example M device hardware S device hardware 1 19012 000 Command device username device username name Description Get or set the user name of the module Parameter name Use...

Page 29: ...lampcheck pid lampcheck ok Description Starts the lamp check and enters LAMP CHECK state Parameter Example M pid lampcheck S pid lampcheck ok M pid lampcheck S pid lampcheck error invalid module status Command pid stop pid stop ok Description Stops the measurement and enters the IDLE state Parameter Example M pid stop S pid stop ok M pid stop S pid stop error invalid module status Command pid rebo...

Page 30: ...Example M pid state S pid state 00004000 PID state bit definition Bit Meaning Bit Meaning D00 1 Module concentration under range D16 reserved D01 1 Module concentration over range D17 reserved D02 1 Module flow low D18 reserved D03 1 Module flow over D19 reserved D04 1 Module input voltage under range D20 reserved D05 1 Module input voltage over range D21 reserved D06 reserved D22 reserved D07 res...

Page 31: ...ed D05 1 Error flow sensor D21 reserved D06 reserved D22 reserved D07 reserved D23 reserved D08 reserved D24 reserved D09 reserved D25 reserved D10 reserved D26 reserved D11 reserved D27 reserved D12 reserved D28 reserved D13 reserved D29 reserved D14 reserved D30 reserved D15 reserved D31 1 Error unspecified Command pid measconfig pid measconfig calmet ident factor Description Get or set the cali...

Page 32: ...ation e g 100 0 ppm Example read active M pid calib S pid calib 3 850 978 200 0 000 100 000 Example write success M pid calib 3 850 928 200 0 000 100 000 S pid calib ok Example write error here curr2 to low M pid calib 3 850 28 200 0 000 100 000 S pid calib error calibration data invalid The calibration values will be verified If check fails the module responds with error message error calibration...

Page 33: ...number text of connected lamp variant variant text of connected lamp ontime on time of connected lamp in hours units Example M pid lampinfo S pid lampinfo C332003002 106eV 12 500 10 3 5 Module I2C commands Command device address i2c device address i2c addr Description Get or set the device I2C slave address Parameter addr I2C slace address in decimal 1 to 127 Example read M device address i2c S de...

Page 34: ...D I2C TOGETHER The UART baudrate is selected by I2C lines levels at device startup Using UART and I2C together may result in wrong baudrate selection 11 1 Data transfer Reading data from module S ADDR W A REG 0 A REG 3 A Sr ADDR R A DATA 0 A DATA N N P Writing data to module S ADDR W A REG 0 A REG 3 A DATA 0 A DATA N A P Symbol description from slave to master S I2C START condition from master to ...

Page 35: ...ng point value Command Read temperature at address 0x00000038 Value Converted 0x41B80A3D 23 005 C S ADDR W REGx Sr ADDR R DATAx 0 1 2 3 0 1 2 3 0x38 0x00 0x00 0x00 0x3D 0x0A 0xB8 0x41 11 3 Registers Multiple registers can be read or written by writing the first address to read or write and clocking up to 32 data bytes in a single transfer Do not read or write to reserved registers 11 3 1 Module in...

Page 36: ...rved D08 0 no effect 1 calibration method extended D24 reserved D09 0 no effect 1 calibration method standard D25 reserved D10 reserved D26 reserved D11 reserved D27 reserved D12 reserved D28 reserved D13 reserved D29 reserved D14 reserved D30 reserved D15 reserved D31 reserved USAGE CONTROL REGISTER WRITE Reserved bits must be 0 Only set one bit to module control register to perform one action On...

Page 37: ...eserved D04 1 Module input voltage under range D20 reserved D05 1 Module input voltage over range D21 reserved D06 reserved D22 reserved D07 reserved D23 reserved D08 0 Module calibration method is standard 1 Module calibration method is extended D24 reserved D09 reserved D25 reserved D10 reserved D26 reserved D11 1 Module in LAMP CHECK state D27 reserved D12 1 Module in INIT state D28 reserved D1...

Page 38: ...ame Type Register Byte no Format Calibration method RW 0x00000080 0x04 Unsigned 32 bit value 0 standard calibration 1 extended calibration Gas identification RW 0x00000084 0x10 String value Gas result factor RW 0x00000094 0x04 Floating point value In case of verifying measurement config data fails the current measurement config data is not changed and is set to registers 11 3 5 Module calibration ...

Page 39: ...Module lamp information data registers Name Type Register Byte no Format Serial numer of connected lamp RO 0x000000A0 0x10 String value Variant of connected lamp RO 0x000000B0 0x10 String value On time of connected lamp in hours units RO 0x000000C0 0x04 Floating point value In case of verifying measurement config data fails the current measurement config data is not changed and is set to registers...

Page 40: ...onization Detector Module PIM CPN User Manual PIM_CPN User Manual en 1 08 docx Analytical Control Instruments GmbH Volmerstraße 9A 12489 Berlin Germany www aci berlin com Page 40 of 48 12 Mechanical Drawings ...

Page 41: ... 9A 12489 Berlin Germany www aci berlin com Page 41 of 48 13 Maintenance and Service NOTICE The module contains electronic components which react sensitively to electrostatic discharge ESD Work on or in the unit must be done only by qualified personal and in full compliance with the appropriate instructions and pertinent regulations ...

Page 42: ...3 Remove the old front isolation from the PID sensor block by using a tweezer at the notch on front isolation border 4 Place the new front isolation into the PID sensor block and make sure that the curvature shows to the lamp side Do not bend or touch the front isolation or measurement chamber with the finger Insert PID lamp 5 Plug the PID lamp with a slight right twisting motion into the PID sens...

Page 43: ...mp window and rub in a circular motion Repeat this 2 3 times 3 After cleaning process take short brake of 1 min before the lamp will be installed into PID sensor block 4 Switching on the device and after 15 min operation the calibration procedure can be started CAUTION Follow common safety instruction for using methanol Do not touch the lamp window during installation 13 3 Maintenance Intervals Th...

Page 44: ...Photoionization Detector Module PIM CPN User Manual PIM_CPN User Manual en 1 08 docx Analytical Control Instruments GmbH Volmerstraße 9A 12489 Berlin Germany www aci berlin com Page 44 of 48 ...

Page 45: ...ation Detector Module PIM CPN Order code 0002971 consist of Evaluation Kit Photoionization Detector Module PIM CPN Order code 0002972 consist of No Parts 1 Photoionization Sensor Module PIM CPN 1 PID lamp 10 6 eV No Parts 1 Photoionization Detector Module PIM CPN 1 PID lamp 10 6 eV 1 Dust filter 1 USB to sensor module adapter cable for power supply and communication 1 USB memory stick with documen...

Page 46: ...12489 Berlin Germany www aci berlin com Page 46 of 48 15 Spare parts and Accessories PIM CPN lamp kit 10 6eV Order code 0002954 PIM CPN lamp kit 11 8eV Order code 0003023 PIM CPN lamp kit 10 0eV Order code 0003024 PIM CPN sensor block kit Order code 0002974 Lamp front isolation pack Order code 0002975 Gas inlet filter Order code 0002591 ...

Page 47: ...Photoionization Detector Module PIM CPN User Manual PIM_CPN User Manual en 1 08 docx Analytical Control Instruments GmbH Volmerstraße 9A 12489 Berlin Germany www aci berlin com Page 47 of 48 ...

Page 48: ...GmbH Volmerstraße 9A 12489 Berlin Germany www aci berlin com Page 48 of 48 16 Contact Analytical Control Instruments GmbH Volmerstraße 9A D 12489 Berlin Germany Analytical Control Instruments GmbH All rights reserved Analytical Control Instruments GmbH Volmerstraße 9A D 12489 BERLIN 49 30 6392 5466 www aci berlin com ...

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