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SPMD Instrument Descriptions and Histories


Model Measurement
Notes (below)
Units Install
Date
Removal
Date
Current
SN
Current
CF
LI-200 Global Horizontal W/m2 03/28/1997 - PY58840 70.676W/m2/mV
LI-COR, Inc. Model LI-200 Pyranometer mounted on the cabin roof. Prior to Aug. 7, 2002 it was mounted at 20-foot level on ROHN 25-G Tower.
1141-179 Temperature oF 03/28/1997 - 52187 (Inst. P16)
Templine Model 1141-179 3-Wire RTD Temperature Sensor is mounted inside R. M. Young Aspirator. Located outside cabin and under deck, 4-feet above ground.
TV-102 Wind Speed MPH 03/28/1997 09/28/2002 - 0.3031 MPH/mV
Texas Electronics Model TV-102 3-cup Anemometer at 30-foot level on ROHN 25-G Tower.
SS-201 Wind Speed MPH 09/28/2002 06/13/2010 072 0.0976 MPH/mV + 0.7922 MPH
Met One Model SS-201 3-cup Anemometer at 40-foot level on ROHN 25-G Tower. Prior to April 28, 2004 it was mounted at the 30-foot level.
SD-201 Wind Direction o from N 09/14/2002 06/13/2010 080 0.288 o/mV
Met One Model SD-201 at 40-foot level on ROHN 25-G Tower. Prior to April 28, 2004 it was mounted at the 30-foot level.
CSI-107 Temperature (Cabin) oF 11/20/2002 - - (Inst. P11)
Temperature sensor located inside cabin.
CSI-107 Temperature (Lower) oF 11/20/2002 - - (Inst. P11)
Temperature sensor was located inside cabin basement. From June 16, 2004 to June 30, 2010 the sensor reads the temperature of a 24V Battery Bank.
- CR10X Battery Voltage VDC 11/20/2002 - - -
CR10X external battery voltage. Note: Datalogger was upgraded from a CR10 to a CR10X on June 24, 2010.
- 24V Battery Voltage VDC 11/20/2002 06/13/2010 - 0.1 V/mV
Battery bank voltage.
435A Temperature #2 and Relative Humidity oF
%
06/26/2007 - 2760 (Polynomial)
0.1 %/mV
Handar Model 435A Temperature and Relative Humidity Sensor is mounted inside R. M. Young Aspirator. Temperature is measured by a YSI-44006 thermistor. Sensor is located outside cabin and under deck, 4-feet above ground.
- CR10X Temperature oF 06/29/2010 - - -
CR10X internal temperature sensor is mounted on datalogger circuit board.
- Cabin Power Status mVDC 08/13/2010 - - -
A value of zero indicates that the cabin is receiving 120 VAC service power, any other value indicates power loss.
Notes:
  • Data Sample rate is 1/sec, with 5-min averages and 24-hr data.
  • 24-hr data can only be retrieved using the "Full Raw Data" selection.
  • ROHN 25-G Tower (43-foot tall) is located 80 feet SSE of cabin in a clearing.
  • Raw data files were downloaded directly from Campbell Scientific CR-10 datalogger using PC208W.

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