Campbell Scientific Sentek TriSCAN® Manual v 1.2a User Manual
Page 48
TriSCAN Manual Version 1.2a
Copyright © 1991 – 2004 Sentek Pty Ltd All rights reserved
Page 41
Appendix 1. Units of Salinity Measurement and
Conversion Factors
Table 6. Useful Conversion Factors
Electrical Conductivity 1 Scm
-1
(1 mhocm
-1
) = 1000 mScm
-1
(1000 mmhoscm
-1
)
1 dSm
-1
= 1000
µ
Scm
-1
(1000 micromhoscm
-1
)
Conductivity to mmol (+) per liter:
mmol (+)/L = 10 X EC (EC in dSm
-1
)
for irrigation water and soil extracts in the range of 0.1 – 5 dSm
-1
Conductivity to osmotic pressure in bars:
OP = 0.36 x EC (EC in dSm
-1
) or soil extracts in the range of 3-30 dSm
-1
Conductivity to Total Dissolved Solids (TDS) mgL
-1
:
TDS (mgL
-1
) ˜ 640 x EC (dSm
-1
) for water and soil extracts having conductivity up to 5 dSm
-1
TDS (mgL
-1
) ˜ 800 x EC (dSm
-1
) for waters and soil extracts > 5 dSm
-1
TDS (lbs/ac ˜ ft) = TDS (mgL
-1
) x 2.72
TDS (tons/ac ˜ ft) = TDS (mgL
-1
) x 0.00136
Note: The SI unit of electrical conductivity is Siemens per metre (Sm
-1
). The equivalent non-SI unit is mho
and 1 mho = 1 Siemens.
- 014A Met One Wind Speed Sensor (36 pages)
- 020C Wind Direction Sensor (26 pages)
- 024A-L Met One Wind Direction Sensor (30 pages)
- 03001-L R.M. Young Wind Sentry Set (34 pages)
- 03002, 03101, and 03301 R. M. Young Wind Sentry Sensors (40 pages)
- 034A-L WindSet (16 pages)
- 034B-L Met One Windset (34 pages)
- 036, 038 Spark Gapped Junction Box (6 pages)
- 05103, 05103-45, 05106, and 05305 R. M. Young Wind Monitors (30 pages)
- 083E Relative Humidity and Temperature Sensor (22 pages)
- 0871LH1 Freezing Rain Sensor (31 pages)
- 092 Barometric Pressure Sensor (24 pages)
- 10164-L Water Sampler Control Cable for use with Isco and Sigma Autosamplers (18 pages)
- 107-L Temperature Probe (28 pages)
- 108-LC Temperature Probe for MetData1 (12 pages)
- 108-L Temperature Probe (30 pages)
- 109-L Temperature Probe (30 pages)
- 109SS Temperature Probe (32 pages)
- 110PV Surface Temperature Probe (32 pages)
- 21108 RF450 Demo Kit (14 pages)
- 223-L Delmhorst Cylindrical Soil Moisture Block (28 pages)
- 227-L Delmhorst Cylindrical Soil Moisture Block (24 pages)
- 229 Water Matric Potential Sensor and CE4/CE8 (34 pages)
- 237-L Leaf Wetness Sensor (14 pages)
- 247-L Conductivity and Temperature (18 pages)
- 253-L and 257-L (Watermark 200) Soil Matric Potential Sensors (36 pages)
- 25458 DIN-Rail Terminal Kit (10 pages)
- 255-100 Novalynx Analog Output Evaporation Gauge (16 pages)
- 260-953 Alter-Type Wind Screen for Tipping Bucket Rain Gages (14 pages)
- 27106T Gill Propeller Anemometer (18 pages)
- 30066 Battery Terminal Bus (1 page)
- 380, 385, 380M, 385M Met One Rain Gages (22 pages)
- 3WHB10K 3-Wire Half-Bridge Terminal Input Module (14 pages)
- 43347 RTD Temperature Probe and 43502 Aspirated Radiation Shield (40 pages)
- 4386 Battery Terminal Bus (1 page)
- 4WFB120, 4WFB350, 4WFB1K 4-Wire Full Bridge Terminal Input Module (22 pages)
- 4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules (46 pages)
- 4WPB100, 4WPB1K PRT Terminal Input Modules (16 pages)
- 52202 Electrically Heated Rain and Snow Gage (16 pages)
- 9522B Iridium Satellite Modem and COM9522B Interface Modem (46 pages)
- A100LK Anemometer (18 pages)
- A150 Desiccated Case (12 pages)
- A21REL-12 Relay Driver (10 pages)
- A6REL-12 Relay Driver (12 pages)
- AL200 ALERT2 Encoder, Modulator, and Sensor Interface (44 pages)