Campbell CS205 User manual

MODEL CS205 10-HOUR FUEL TEMPERATURE STICK
INSTRUCTION MANUAL
7/98
COPYRIGHT (c) 1998 CAMPBELL SCIENTIFIC, INC.

WARRANTY AND ASSISTANCE
The CS205 10-HOUR FUEL TEMPERATURE STICK is warranted by CAMPBELL SCIENTIFIC
(CANADA) CORP. (“CSC”) 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. CSC's
obligation under this warranty is limited to repairing or replacing (at CSC's option) defective
products. The customer shall assume all costs of removing, reinstalling, and shipping defective
products to CSC. CSC will return such products by surface carrier prepaid. This warranty shall
not apply to any CSC 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.
CSC is not liable for special, indirect, incidental, or consequential damages.
Products may not be returned without prior authorization. To obtain a Return Merchandise
Authorization (RMA), contact CAMPBELL SCIENTIFIC (CANADA) CORP., at [phone].
An RMA number will be issued in order to facilitate Repair Personnel in identifying an instrument
upon arrival. Please write this number clearly on the outside of the shipping container. Include
description of symptoms and all pertinent details.
CAMPBELL SCIENTIFIC (CANADA) CORP. does not accept collect calls.
Non-warranty products returned for repair should be accompanied by a purchase order to cover
repair costs.
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HMP35C TEMPERATURE AND RH PROBE
1
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
FIGURE 1-1. The 107 probe inserts into the CS205 Fuel Moisture Stick

MODEL CS205 10-HOUR FUEL TEMPERATURE STICK
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FIGURE 3-1. The CS205 mounts on the mounting stake with the CS505
3. INSTALLATION AND WIRING
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.
Connections to the datalogger for the 107 are
shown in Figure 1-1. The probe is measured by
a single-ended analog input channel. The red
lead is connected to either a HI or LO input.
The black lead connects to any excitation
channel.
Please refer to the 107 probe manual for a
complete discussion of the 107 probe.
4. PROGRAMMING
Instruction 11 is used to measure temperature.
Instruction 11 provides AC excitation, makes a
single ended voltage measurement, and calcu-
lates temperature with a fifth order polynomial.
A multiplier of 1.0 and an offset of 0.0 yields
temperature in Celsius. For Fahrenheit, use a
multiplier of 1.8 and an offset of 32.
EXAMPLE 1. Sample CR500/CR10(X)/21X
Instructions
01: P11 Temp 107 Probe
01: 1 Rep
02: 9* IN Chan
03: 3*✝Excite all reps w/EXchan 3
04: 11* Loc [:Air_Temp]
05: 1 Mult
06: 0 Offset
* Proper entries will vary with program,
datalogger channel, and input location
assignments.
✝Excitation/Integration Codes:
Code Result
0x excite all rep with channel x
1x increment chan x with each rep
2x excite all reps with channel x, 60 Hz
rejection, 10 ms delay
3x excite all reps with channel x, 50 Hz
rejection, 10 ms delay
4x increment chan x with each rep, 60 Hz
rejection, 10 ms delay
5x increment chan x with each rep, 50 Hz
rejection, 10 ms delay

MODEL CS205 10-HOUR FUEL TEMPERATURE STICK
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5. MAINTENANCE AND CALIBRATION
The 107 Probe requires minimal maintenance.
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 5-1. 107 Thermistor Probe Schematic