MRC COH-9905SD Operation Manual
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MRC COH-9905SD Operation Manual

Co2 meter + humidity/temp.
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SD card real time Data Recorder
CO2, Humidity, Dew point, Temp.
CO2 METER
+ HUMIDITY/Temp.
Model : COH-9905SD
OPERATION MANUAL
PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION
Hagavish st. Israel 58817 Tel: 972 3 5595252, Fax: 972 3 5594529
mrc@mrclab.com
MRC.1.22

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Summary of Contents for MRC COH-9905SD

  • Page 1 SD card real time Data Recorder CO2, Humidity, Dew point, Temp. CO2 METER + HUMIDITY/Temp. Model : COH-9905SD OPERATION MANUAL PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION Hagavish st. Israel 58817 Tel: 972 3 5595252, Fax: 972 3 5594529 mrc@mrclab.com...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. FEATURES......................2. SPECIFICATIONS....................2-1 General Specifications..................2-2 Electrical Specifications................3. FRONT PANEL DESCRIPTION................4 MEASURING PROCEDURE................5. OTHER FUNCTION....................5-1 Data Hold......................5-2 Record ( Max./ Min. reading )................. 5-3 LCD Backlight OFF and 4rd-order LCD Backlight brightness ..... 6.

  • Page 3: Features

    1. FEATURES * Real time recorder, save the data into the SD memory card and can be down load to the Excel, extra software is no need. User can make the further data or graphic analysis by themselves. under the Excel software. * At the same time, the SD memory card can record 2 probe's data ( %RH/CO/Temp.

  • Page 4: Specifications

    2. SPECIFICATIONS 2-1 General Specifications Circuit Custom one-chip of microprocessor LSI circuit. Display LCD size : 52 mm x 38 mm LCD with green backlight ( ON/OFF ). Measurement CO2 ( Carbon monoxide ), Humidity Dew point Temp., Wet bulb Temp. Temperature Sensor NDIR...
  • Page 5 Data Hold Freeze the display reading. Memory Recall Maximum & Minimum value. Sampling Time Approx. 1 second. of Display Data Output RS 232/USB PC computer interface. * Connect the optional RS232 cable UPCB-02 will get the RS232 plug. * Connect the optional USB cable USB-01 will get the USB plug.

  • Page 6: Electrical Specifications

    ℃ 2-2 Electrical Specifications (23±5 CO2 ( Carbon dioxide ) Range 0 to 10,000 ppm Resolution 1 ppm ( Carbon Accuracy ±40 ppm ≦ dioxide ) 1,000 ppm. ±(50ppm +3% of reading) ≦ 23 ± 5 ℃. * > 1,000 ppm 3,000 ppm.
  • Page 7 Dew Point Temp. ( Humidity ) ℃ -25.3 ℃ to 48.9 ℃ Range 0.1 ℃ Resolution ℉ -13.5 ℉ to 120.1 ℉. Range 0.1 ℉. Resolution Remark : * Dew Point display value is calculated from the Humidity/Temp. measurement automatically. * The Dew Point accuracy is sum accuracy value of Humidity &...

  • Page 8: Front Panel Description

    3. FRONT PANEL DESCRIPTION Fig. 1 3-1 Display 3-2 Power Button ( Backlight Button ) 3-3 Hold Button ( ESC Button ) 3-4 REC Button ( ) 3-5 ▲ / Function Button ( Alarm Button ) 3-6 ▼ Button/SCREEN Button 3-7 Time Button (SET Button ) 3-8 ENTER Button ( Logger Button ) 3-9 Stand...

  • Page 9: Measuring Procedure

    4. MEASURING PROCEDURES Measuring procedures 1) Power on the meter by pushing the " Power Button "( 3-2, Fig. 1 ) > 2 seconds the meter will be power on. 2) Press the " Screen Button " ( 3-6, Fig. 1 ) once in sequence to select the measuring function Screen : 3) In Humidity/Temp.

  • Page 10: Other Function

    5. OTHER FUNCTION 5-1 Data Hold During the measurement, press the " Hold Button " ( 3-3, Fig. 1 ) once will hold the measured value & the LCD will display a " HOLD " symbol. Press the " Hold Button " once again will release the data hold function.

  • Page 11: Datalogger

    6. DATALOGGER 6-1 Preparation before execute datalogger function a. Insert the SD card ≦ * It recommend use memory card 4 GB. Prepare a " SD memory card " ( 1 GB to 16 GB, optional ), insert the SD card into the " SD card socket " ( 3-13, Fig. 1 ). The front panel of the SD card should face against the down case.

  • Page 12: Auto Datalogger ( Set Sampling Time ≧ 1 Second )

    ≧ 6-2 Auto Datalogger ( Set sampling time 1 second ) a. Start the datalogger Press the " LOG Button ( 3-8, Fig. 1 ) > 2 seconds continuously, the LCD will show the text of " LOGGER " indecator and flashing per second, at the same time the measuring data along the time information will be saved into the memory circuit.

  • Page 13: Manual Datalogger ( Set Sampling Time = 0 Second )

    6-3 Manual Datalogger ( Set sampling time = 0 second ) a. Set sampling time is to 0 second Press the " LOG Button ( 3-8, Fig. 1 )>2 second, the LCD will show the indecator " LOGGER " and " Position no. " symbol then press the "...

  • Page 14: Check Sampling Time Information

    6-5 Check sampling time information During the normal measurement screen ( not execute the Datalogger ), If press " Sampling Button " ( 3-8, Fig. 1 ) once , the lower LCD display will present the Sampling time information in second unit. 6-6 SD Card Data structure 1) When the SD card is used into the meter, the SD card When the first time, the SD card is used into the meter,...
  • Page 15 C2B01\ C2B01001.XLS C2B01002.XLS ..... C2B01099.XLS C2BXX\ .......... Remark : XX : Max. value is 10.

  • Page 16: Saving Data From The Sd Card To The Computer

    7. Saving data from the SD card to the computer ( EXCEL software ) 1) After execute the Data Logger function, take away the SD card out from the " SD card socket " ( 3-13, Fig. 1 ). 2) Plug in the SD card into the Computer's SD card slot ( if your computer build in this installation ) or insert the SD card into the "...
  • Page 17 EXCEL data screen ( for example )

  • Page 18: Advanced Setting

    8. ADVANCED SETTING Under do not execute the Datalogger function, press the " SET Button " ( 3-8, Fig. 1 ) continuously at least two seconds will enter the " Advanced Setting " mode. then press the " SET Button " ( 3-8, Fig. 1 ) once a while in sequence to select the eight main function, the display will show : General advanced setting...
  • Page 19 General advanced setting 8-1 SD memory card Format When the lower display show " SD Format " 1) Use the " ▲ Button " ( 3-5, Fig. 1 ) or " ▼ Button " ( 3-6, Fig. 1 ) to select the upper value to " Yes " or "...
  • Page 20 2) After set all the time value ( Year, Month, Date, Hour, Minute, Second ), press the " SET Button " ( 3-8, Fig. 1 ) once will save the time value, then the screen will jump to Sampling time " setting screen ( Chapter 8-3 ). Remark : After the time value is setting, the internal clock will run precisely even Power off if the battery is under...
  • Page 21 8-4 Auto power OFF management When the lower display show " Auto off " 1) Use the " ▲ Button " ( 3-5, Fig. 1 ) or " ▼ Button " ( 3-6, Fig. 1 ) to select the upper value to " Yes " or "...
  • Page 22 8-6 Decimal point of SD card setting The numerical data structure of SD card is default used the " . " as the decimal, for example "20.6" "1000.53" . But in certain countries ( Europe ...) is used the " , " as the decimal point, for example "...
  • Page 23 8-8 Set the alarm value When the lower display show " Alarm " 1) Use the " ▲ Button " ( 3-5, Fig. 1 ) or " ▼ Button " ( 3-6, Fig. 1 ) to adjust the Alarm value. 2) After set the Alarm value, press the "...

  • Page 24: Power Supply From Dc Adapter

    9. POWER SUPPLY from DC ADAPTER The meter also can supply the power supply from the DC 9V Power Adapter ( optional ). Insert the plug of Power Adapter into " DC 9V Power Adapter Input Socket " ( 3-16, Fig. 1 ). The meter will permanent power ON when use the DC ADAPTER power supply ( The power Button function is disable ).

  • Page 25: System Reset

    11. SYSTEM RESET If the meter happen the troubles such as : CPU system is hold ( for example, the key button can not be operated... ). Then make the system RESET will fix the problem. The system RESET procedures will be either following method : During the power on, use a pin to press the "...
  • Page 26 The 16 digits data stream will be displayed in the following format : D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Each digit indicates the following status : Start Word When send the %RH data = 1 When send the Temp./%RH.

  • Page 27: Patent

    13. PATENT The meter ( SD card structure ) already get patent or patent pending in following countries : Germany Nr. 20 2008 016 337.4 JAPAN 3151214 TAIWAN M 358970 M 359043 CHINA ZL 2008 2 0189918.5 ZL 2008 2 0189917.0 Patent pending...

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