Campbell CS500-LC Manual de usuario
INSTRUCTION MANUAL
CS500-LC Temperature and
Relative Humidity Probe
for MetData1
4/97
Copyright (c) 1995-1997
Campbell Scientific, Inc.
Warranty and Assistance
The CS500-LC TEMPERATURE AND RELATIVE HUMIDITY PROBE
FOR METDATA1 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.
1
CS500-LC TEMPERATURE AND RELATIVE HUMIDITY PROBE
FOR METDATA1
1. GENERAL
The Model CS500 temperature and relative
humidity probe uses a 1000 ΩPRT (DIN 43760B)
to measure temperature and a Vaisala capacitive
humidity sensor (INTERCAP) to measure relative
humidity. Internal signal conditioning provides an
output of 0 to 1000 mV for both temperature (-40°C
to +60°C) and relative humidity (0% to 100%).
1.1 SPECIFICATIONS
Temperature Measurement Range: -40°C to +60°C
Temperature Accuracy: ±0.5°C @ -40°C,
±0.4°C @ -20°C, ±0.6°C @ +60°C
Relative Humidity Range (for the specified
accuracy): 10% to 90%
Relative Humidity Accuracy: ±2.0% @ 10%
±3.0% @ 90%
Typical Long-Term Stability: Better than
±1.0% per year
Supply Voltage: 7-28 VDC
Current Consumption: Typically < 2 mA
Diameter: 0.47 inches (12 mm)
Length: 2.66 inches (68 mm)
Housing Material: ABS Plastic
2. INSTALLATION
The CS500 must be housed inside a solar
radiation shield when used in the field. The
41301 6-Plate Radiation Shield (see Figure 1)
mounts to a CM6/CM10 tripod. The CS500 is
held within the 41301 with a mounting clamp
(See Figure 2).
The 41002 12-Plate Radiation Shield (see
Figure 3) mounts to a CM6/CM10 tripod. The
UT12VA 12-Plate Radiation Shield mounts to a
UT3 or UT930 tower with the UT018 horizontal
mounting arm.
The CS500 is held in place, within the 41002 or
UT12VA Radiation Shield, via an adaptor,
Model 41381. The 41381 adaptor is threaded
onto the bottom of the CS500 (see Figure 4).
The 41004 12-Plate Radiation Shield, used with
207 probes, can be converted to a 41002 with
P/N 6638.
FIGURE 1. CS500 and 41301 Radiation
Shield on a CM6/CM10 Tripod Mast
FIGURE 2. CS500 and 41301
Radiation Shield
Mounting Clamp
CS500-LC TEMPERATURE AND RELATIVE HUMIDITY PROBE FOR METDATA1
2
FIGURE 3. CS500 and 41002 Radiation
Shield on a CM6/CM10 Tripod Mast
FIGURE 4. Radiation Shield, CS500, and
41381 Adaptor
3. CONNECTION
The CS500 cable is attached to the MetData1
connector labeled #1. Ensure internal jumper
#1 is open as shown in Figure 5.
CS800Default
HMP35C
LI190SB
LI200S
CS500\HMP45C
Open
Open
#1 #2 #3
#4
FIGURE 5. MetData1 Jumper Configuration
4. DATALOGGER PROGRAMMING
NOTE: Information in this section is not
necessary when programming the
MetData1 with the Short Cut Program
Builder software.
The CS500 is measured by two single-ended
voltage instructions (Instruction 1). The
multiplier and offset for temperature in degrees
Celsius is 0.1 and -40 respectively. The
multiplier and offset for temperature in degrees
Fahrenheit is 0.18 and -40 respectively. The
multiplier and offset for relative humidity is 0.1
and 0 respectively.
Instruction 86 sets control port 1 high. Control
port 1 turns on the 12 V switch circuit which
supplies power to the CS500.
MetData1 Datalogger Program Instructions
01: P86 Do
01: 41 Set high Port 1
02: P22 Excitation with Delay
01: 3 EX Chan
02: 0 Delay w/EX (units=.01sec)
03: 10 Delay after EX (units=.01sec)
04: 0 mV Excitation
41002 12-Plate
Radiation Shield
Lock Nut Tightens
Against Adapter
CS500
41381 Ada
p
ter
Tripod Mast
Internal Threads Secure
the CS500 to Adapter
CS500-LC TEMPERATURE AND RELATIVE HUMIDITY PROBE FOR METDATA1
3
03: P1 Volt (SE)
01: 1 Rep
02: 25 2500 mV 60 Hz rejection
Range
03: 2 IN Chan
04: 1* Loc [:Temp_C ]
05: .1** Mult
06: -40 Offset
04: P1 Volt (SE)
01: 1 Rep
02: 25 2500 mV 60 Hz rejection
Range
03: 1 IN Chan
04: 2* Loc [:RH_prc ]
05: .1 Mult
06: 0 Offset
05: P86 Do
01: 51 Set low Port 1
* Proper entries will vary with input location
assignment.
** For degrees Fahrenheit use a multiplier
of 0.18.
5. MAINTENANCE AND CALIBRATION
The CS500 probe requires minimal
maintenance. Check monthly to make sure the
radiation shield is free from debris. The white
screen on the sensor’s end should also be
cleared of dust and debris.
When installed in close proximity to the ocean
or other bodies of salt water (e.g., Great Salt
Lake), a coating of salt (mostly NaCl) may build
up on the radiation shield, sensor, filter and
even the chip. NaCl has an affinity for water.
The humidity over a saturated NaCl solution is
75%. A buildup of salt on the filter or chip will
delay or destroy the response to atmospheric
humidity.
The filter can be rinsed gently in distilled water.
If necessary, the chip can be removed and
rinsed as well. Do not scratch the chip while
cleaning or drying. To speed up the drying
process you may lay the chip on a clean paper
towel so it will absorb the water away.
Replace the humidity chip every two years.
Contact Campbell Scientific, Inc. at
(801) 753-2342 for replacements.
CS500-LC TEMPERATURE AND RELATIVE HUMIDITY PROBE FOR METDATA1
4
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Campbell Scientific Companies
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