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Connecting to the 

Computer 

NOTE: The A160 logger requires SpecWare version 9.03 or 
above.  If you are already running a version of SpecWare 9, 
an update to the latest version is available as a free 
download on the SpecWare 9 update page at 
www.specmeters.com.   

 
The A160 and other A-Series loggers do not use the standard 
gray PC interface cable that accompanies SpecWare Software.  
Instead, you need the A-Series PC Connection Cable (Item 
3661A).  The cable is a serial USB cable and requires that you 
install the driver prior to its use.  The driver is included on the 
SpecWare Software installation CD for SpecWare 9 Pro or Basic, 
Version 9.01 Build 206 or greater, as well as on the SpecWare 9 
update page at www.specmeters.com. 
 
After installing the drivers, if you plug in the cable before you 
start SpecWare (or leave it plugged in), SpecWare will 
automatically find the COM port used by the cable. 
 
The 2.5mm stereo pin connects to the jack on the back of the 
data logger. 
 

The only time you must have the WatchDog connected to the 
computer is during the launching and downloading of the data 
logger.

  After the logger has been launched, and/or downloaded, 

disconnect the logger and place it in the environment you wish to 
monitor. 

Summary of Contents for 3611A

Page 1: ... A160 Temp RH CO2 Data Logger PRODUCT MANUAL Item 3611A ...

Page 2: ...0 Warranty 12 Model Specifications 2 Contents CO2 Range 0 to 9999 ppm CO2 Accuracy 50ppm 5 of reading from 0 to 2000 ppm else unspecified Temperature Range 14 to 140 F 10 to 60 C Temperature Accuracy 1 0 F 0 6 C Humidity Range 5 0 to 95 0 RH avoid condensation Humidity Accuracy 3 RH at 77 F 25 C 10 to 90 RH else 5 RH Warm up 30 seconds Power Supply 100 240VAC adapter to 5VDC 500mA Pressure Depende...

Page 3: ...nd keep it working accurately for many years Read this manual thoroughly in order to get effective performance from your data logger The A160 logger also has a comprehensive LCD display with controls Pages 3 6 describe the operation of the display LCD and controls Pages 7 9 describe the logger function Description LCD Display ...

Page 4: ...ntinuously and updates the LCD every second With a significant environmental change the CO2 sen sor requires 2 minutes and the RH sensor 10 minutes to re spond Note Do not hold the meter close to the face because exhalation affects the CO2 reading Switch Temperature Measurement Press the Up DP WBT key to cycle the temperature display be tween air dew point and wet bulb temperatures MIN MAX Press M...

Page 5: ...rops below this the alarm will automatically stop The current value will be blinking on the LCD Press LOGS to increase or MIN MAXT to decrease the value Press SET again to enter P1 3 to set the CO2 alarm upper limit exceeding this triggers the alarm The current value will be blinking on the LCD Press LOGS to increase or MIN MAX T to decrease the value in a plant growth environment this should prob...

Page 6: ...CO2 Manual Calibration Manual calibration should be done outdoors on a sunny day with fresh air and plenty of ventilation resulting in a CO2 value of about 400 ppm Do not calibrate on a rainy day because high humidity will affect the CO2 level Do not calibrate in places with crowds of people or in the vicinity of high concentration CO2 sources such as ventilation outlets or fireplaces Place the A1...

Page 7: ...driver prior to its use The driver is included on the SpecWare Software installation CD for SpecWare 9 Pro or Basic Version 9 01 Build 206 or greater as well as on the SpecWare 9 update page at www specmeters com After installing the drivers if you plug in the cable before you start SpecWare or leave it plugged in SpecWare will automatically find the COM port used by the cable The 2 5mm stereo pin...

Page 8: ...pecWare an initializa tion screen will open Enter the serial number printed on the bottom of the logger Because you have an A160 the A125 A130 options are ignored Logger Location Names SpecWare maintains a list of A Series logger serial numbers and their corresponding location names As a result the first time an A Series logger is connected on a PC SpecWare will ask for a location name If you are ...

Page 9: ... by selecting the Get WatchDog A Series data option from the Logger menu or by clicking the icon on the SpecWare toolbar When the download is complete the data will be saved in the location defined for that logger End will flash on the LCD to show the download was complete Press and hold the ESC button to return to the normal display Charts Reports Whenever a file is opened SpecWare will automatic...

Page 10: ... haven t done so already unplug the AC adapter Shake any water out of the A160 Set the A160 in a venti lated area for at least a day preferably more Do not plug it in until you are confident that any water has evaporated Wa ter damage is not covered under warranty LCD Error Codes CO2 Reading E01 The CO2 sensor is damaged Contact your distributor regarding repair E02 The CO2 reading is under the lo...

Page 11: ...hen contact your distributor regarding repair E03 Air temperature is above the upper limit Put the meter in regular room temperature for 30 minutes If this still appears then contact your distributor regarding repair E31 Temperature sensor or measuring circuit has failed Contact your distributor regarding repair Relative Humidity Reading E04 Air Temperature measurement has an error code Refer to t...

Page 12: ... 61326 1 2006 CISPR11 EN 61000 4 2 1995 A1 1998 A2 2001 EN 61000 4 3 2006 This product is warranted to be free from defects in material or work manship for one year from the date of purchase During the warranty period Spectrum will at its option either repair or replace products that prove to be defective This warranty does not cover damage due to improper installation or use lightning negligence ...

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