Model CS205 10-Hour
Fuel Temperature Stick
Revision: 5/08
Copyright © 1998-2008
Campbell Scientific, Inc.
Warranty and Assistance
The MODEL CS205 10-HOUR FUEL TEMPERATURE STICK is
warranted by CAMPBELL SCIENTIFIC, INC. to be free from defects in
materials and workmanship under normal use and service for twelve (12)
months from date of shipment unless specified otherwise. Batteries have no
warranty. CAMPBELL SCIENTIFIC, INC.'s obligation under this warranty is
limited to repairing or replacing (at CAMPBELL SCIENTIFIC, INC.'s option)
defective products. The customer shall assume all costs of removing,
reinstalling, and shipping defective products to CAMPBELL SCIENTIFIC,
INC. CAMPBELL SCIENTIFIC, INC. will return such products by surface
carrier prepaid. This warranty shall not apply to any CAMPBELL
SCIENTIFIC, INC. products which have been subjected to modification,
misuse, neglect, accidents of nature, or shipping damage. This warranty is in
lieu of all other warranties, expressed or implied, including warranties of
merchantability or fitness for a particular purpose. CAMPBELL SCIENTIFIC,
INC. is not liable for special, indirect, incidental, or consequential damages.
Products may not be returned without prior authorization. The following
contact information is for US and International customers residing in countries
served by Campbell Scientific, Inc. directly. Affiliate companies handle
repairs for customers within their territories. Please visit
www.campbellsci.com to determine which Campbell Scientific company
serves your country. To obtain a Returned Materials Authorization (RMA),
contact CAMPBELL SCIENTIFIC, INC., phone (435) 753-2342. After an
applications engineer determines the nature of the problem, an RMA number
will be issued. Please write this number clearly on the outside of the shipping
container. CAMPBELL SCIENTIFIC's shipping address is:
CAMPBELL SCIENTIFIC, INC.
RMA#_____
815 West 1800 North
Logan, Utah 84321-1784
CAMPBELL SCIENTIFIC, INC. does not accept collect calls.
CS205 Table of Contents
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1. General Description.....................................................1
2. Specifications ..............................................................1
3. Installation....................................................................1
4. Wiring............................................................................2
5. Datalogger Programming............................................3
5.1 CR1000 Programming..............................................................................3
5.2 CR10X Programming...............................................................................4
6. Maintenance and Calibration......................................4
Figures
Tables
3-1. Exploded View of CS505 and CS205 Mounting ....................................1
3-2. CS205 Mounts on the Mounting Stake with the CS505..........................2
6-1. 107 Thermistor Probe Schematic............................................................4
4-1. Wiring for CS205....................................................................................2
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i
Model CS205 10-hour Fuel Temperature Stick
1. General Description
The CS205 Temperature Stick is a Ponderosa pine dowel 4.5 inches long and
0.5 inches in diameter. The dowel is fabricated to USFS specifications, to be
used as a fuel moisture sensor. Campbell Scientific, Inc. has bored a hole and
cut a split into one end of the dowel. A model 107 Temperature Probe is
inserted into the CS205 to measure fuel temperature.
The CS205 Fuel Temperature Stick mounts on the 10974 Fuel
Moisture/Temperature Mounting Stake. The CS205 is most commonly
installed along with a CS505 Fuel Moisture Sensor but can be used alone.
2. Specifications
Fuel Temperature Stick
Diameter 0.5 inches
Length 4.5 inches
Wood Type Ponderosa Pine
Bore Hole about 1/4 inch
3. Installation
FIGURE 3-1. Exploded View of CS505 and CS205 Mounting
Insert a 107 temperature probe into the CS205 Fuel Moisture Stick. The
CS205 installs in the white compression fitting on the 10974 Fuel Moisture/
Temperature Mounting Stake. Loosen the compression fitting so that the
CS205 can be inserted. The CS205 inserts into the compression fitting so that
compression is applied to the split end of the stick gripping the 107 probe.
Please refer to the 107 probe manual for a complete discussion of the 107
probe.
1
Model CS205 10-hour Fuel Temperature Stick
4. Wiring
FIGURE 3-2. CS205 Mounts on the Mounting Stake with the CS505
Connections to Campbell Scientific dataloggers are given in Table 4-1.
Temperature is measured with one Single-Ended input channel and an
Excitation channel.
TABLE 4-1. Wiring for CS205
Color
Black Excitation Switched
Red Temperature
Purple Signal Ground
Clear Shield
Description
Signal
CR800
CR5000
CR3000
CR1000
Excitation
Single-Ended
Input
CR510
CR500
CR10(X)
Switched
Excitation
Single-Ended
Input
AG
G
CR21X
CR7
CR23X
Switched
Excitation
Single-Ended
Input
Please refer to the 107 probe manual for a complete discussion of the 107
probe.
2
5. Datalogger Programming
This section is for users who write their own datalogger programs. A
datalogger program to measure this sensor can be created using Campbell
Scientific’s Short Cut Program Builder software. You do not need to read this
section to use Short Cut.
The Temp107 measurement instruction (P11), is used with dataloggers that are
programmed with Edlog (e.g. CR10X, CR23X) to measure the 107 probe. P11
makes half bridge voltage measurement, and converts the measurement result
to temperature using a fifth order polynomial. With a multiplier of 1 and an
offset of 0, the output is temperature in degrees C. With a multiplier of 1.8 and
an offset of 32, the output is temperature in degrees F.
The Therm107 measurement instruction is used with dataloggers that are
programmed with CRBasic (e.g. CR1000) to measure the 107 probe.
Therm107 makes a half bridge voltage measurement, and converts the
measurement result to temperature using the Steinhart-Hart equation. With a
multiplier of 1 and an offset of 0, the output is temperature in degrees C. With
a multiplier of 1.8 and an offset of 32, the output is temperature in degrees F.
Model CS205 10-hour Fuel Temperature Stick
5.1 CR1000 Programming
'CR1000
'This example program measures a single 107 Thermistor probe
'every 10 seconds and stores the average temperature every 60 minutes.
'Declare the variables for the temperature measurement
Public T107_C
'Define a data table for 60 minute averages:
DataTable(Table1,True,-1)
DataInterval(0,60,Min,0)
Average(1,T107_C,IEEE4,0)
EndTable
BeginProg
Scan(10,Sec,1,0)
'Measure the temperature
Therm107(T107_C,1,1,Vx1,0,_60Hz,1.0,0.0)
'Call Data Table
CallTable(Table1)
NextScan
EndProg
3
Model CS205 10-hour Fuel Temperature Stick
5.2 CR10X Programming
;{CR10X}
*Table 1 Program
01: 10 Execution Interval (seconds)
1: Temp (107) (P11)
1: 1 Reps
2: 1 SE Channel
3: 21 Excite all reps w/E1, 60Hz, 10ms delay
4: 1 Loc [ T107_C ]
5: 1.0 Multiplier
6: 0.0 Offset
3: If time is (P92)
1: 0 Minutes (Seconds --) into a
2: 60 Interval (same units as above)
3: 10 Set Output Flag High (Flag 0)
4: Set Active Storage Area (P80)
1: 1 Final Storage Area 1
2: 101 Array ID
5: Real Time (P77)
1: 1220 Year,Day,Hour/Minute (midnight = 2400)
6: Average (P71)
1: 1 Reps
2: 1 Loc [ T107_C ]
6. Maintenance and Calibration
The 107 Probe requires minimal maintenance. Please refer to the 107 manual
for more detail.
The CS205 Fuel Moisture Stick should be changed annually or more
frequently as required. The wood should visually appear fresh and new not
gray or discolored.
FIGURE 6-1. 107 Thermistor Probe Schematic
4
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Campbell Scientific Companies
Campbell Scientific, Inc. (CSI)
815 West 1800 North
Logan, Utah 84321
UNITED STATES
www.campbellsci.com
info@campbellsci.com
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PO Box 2450
Somerset West 7129
SOUTH AFRICA
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Rua Luisa Crapsi Orsi, 15 Butantã
CEP: 005543-000 São Paulo SP BRAZIL
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suporte@campbellsci.com.br
Campbell Scientific Canada Corp. (CSC)
11564 - 149th Street NW
Edmonton, Alberta T5M 1W7
CANADA
www.campbellsci.ca
dataloggers@campbellsci.ca
Campbell Scientific Ltd. (CSL)
Campbell Park
80 Hathern Road
Shepshed, Loughborough LE12 9GX
UNITED KINGDOM
www.campbellsci.co.uk
sales@campbellsci.co.uk
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Miniparc du Verger - Bat. H
1, rue de Terre Neuve - Les Ulis
91967 COURTABOEUF CEDEX
FRANCE
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08013 Barcelona
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Please visit www.campbellsci.com to obtain contact information for your local US or International representative.
a Pty. Ltd. (CSA)
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