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Campbell SI-111 Скачать руководство пользователя страница 9

1

SI-111 and SI-111SS Precision Infrared
Radiometers

1. Introduction

The SI-111 and SI-111SS are precision infrared radiometers that determine the
surface temperature of an object without physical contact. They measure both
the surface temperature of the subject and the body temperature of the sensor.
A Campbell Scientific datalogger uses these measurements to calculate the
correct temperature of the subject.

The SI-111SS replaced the SI-111 in August 2018. The SI-111SS has a
stainless steel connector, a removable cable, different wiring, and a serial
number of 7283 or above. Both sensors are manufactured by Apogee
Instruments.

This manual provides information only for CRBasic dataloggers.
For retired Edlog datalogger support, see an older manual at

www.campbellsci.com/old-manuals

2. Precautions

•

READ AND UNDERSTAND the

section at the front of this

manual.

•

Although the SI-111 and SI-111SS are rugged, they are also highly precise
scientific instruments and should be handled as such.

•

Care should be taken when opening the shipping package to not damage or
cut the cable jacket. If damage to the cable is suspected, contact Campbell
Scientific.

3. Initial Inspection

•

Upon receipt of the sensor, inspect the packaging for any signs of shipping
damage and, if found, report the damage to the carrier in accordance with
policy. The contents of the package should also be inspected and a claim
filed if any shipping related damage is discovered.

•

The model number is printed on a label on the cable. Check this
information against the shipping documents to ensure the correct product
is received.

•

Each sensor is shipped with a calibration certificate that is unique for each
sensor. Cross check the serial number listed on the calibration certificate
against the serial number on your sensor to ensure that the given
calibration coefficients correspond to your sensor.

NOTE

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Содержание SI-111

Страница 1: ...SI 111 and SI 111SS Precision Infrared Radiometers Revision 9 18 Copyright 2002 2018 Campbell Scientific Inc ...

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Страница 3: ...ducts to CSI CSI will return such Products by surface carrier prepaid within the continental United States of America To all other locations CSI will return such Products best way CIP port of entry per Incoterms 2010 This warranty shall not apply to any Products which have been subjected to modification misuse neglect improper service accidents of nature or shipping damage This warranty is in lieu...

Страница 4: ...ping address is CAMPBELL SCIENTIFIC INC RMA _____ 815 West 1800 North Logan Utah 84321 1784 For all returns the customer must fill out a Statement of Product Cleanliness and Decontamination form and comply with the requirements specified in it The form is available from our website at www campbellsci com repair A completed form must be either emailed to repair campbellsci com or faxed to 435 227 9...

Страница 5: ...e beginning work Wear a hardhat and eye protection and take other appropriate safety precautions while working on or around tripods and towers Do not climb tripods or towers at any time and prohibit climbing by other persons Take reasonable precautions to secure tripod and tower sites from trespassers Use only manufacturer recommended parts materials and tools Utility and Electrical You can be kil...

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Страница 7: ...3 Wiring to the Datalogger 7 7 4 Datalogger Programming 7 7 4 1 Sensor Body Temperature Measurements 8 7 4 1 1 Therm109 Instruction 8 7 4 2 Thermopile Detector 8 7 4 2 1 VoltDiff Instruction 8 7 4 3 Target Temperature Calculations 8 8 Maintenance 9 Appendices A Importing Short Cut Code Into CRBasic Editor A 1 B Example Program B 1 Figure 7 1 Protective cap on sensor head 6 Tables 7 1 Wire Color Fu...

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Страница 9: ...tion at the front of this manual Although the SI 111 and SI 111SS are rugged they are also highly precise scientific instruments and should be handled as such Care should be taken when opening the shipping package to not damage or cut the cable jacket If damage to the cable is suspected contact Campbell Scientific 3 Initial Inspection Upon receipt of the sensor inspect the packaging for any signs ...

Страница 10: ...ons of LoggerNet PC200W PC400 or RTDAQ The following procedure also describes programming with Short Cut 1 Open Short Cut and select to create a new program 2 Double click the datalogger model 3 In the Available Sensors and Devices box type SI 111SS or locate the sensor in the Sensors Temperature folder Double click SI 111SS Precision Infrared Radiometer Target temperature defaults to degree C Thi...

Страница 11: ... on the Wiring tab to see how the sensor is to be wired to the datalogger Click OK after wiring the sensor 5 Repeat steps three and four for other sensors Click Next 6 In Output Setup type the scan rate meaningful table names and the Data Output Storage Interval ...

Страница 12: ...sure an individual leaf a canopy or any surface of interest The SI 111 and SI 111SS consist of a thermopile which measures surface temperature and a thermistor which measures sensor body temperature The two temperature sensors are housed in a rugged aluminum body that contains a germanium window Both the thermopile and the thermistor output a millivolt signal that most of our dataloggers can measu...

Страница 13: ...0 and CR9000 X Input Power 2 5 V excitation for thermistor Absolute Accuracy 0 2 C 10 to 65 C1 0 5 C 40 to 70 C2 Uniformity 0 1 C 10 to 65 C 0 3 C 40 to 70 C Repeatability 0 05 C 10 to 65 C 0 1 C 40 to 70 C Mass 190 g Length 6 3 cm Diameter 2 3 cm Response Time Less than 1 second to changes in target temperature Target Output Signal 60 µV per C difference from sensor body Body Temperature Output S...

Страница 14: ...M200 series crossarm tripod or tower mast or a 0 75 inch to 1 inch IPS pole The CM230 and CM230XL are adjustable mounts that allow the sensor to be pointed at the target The SI 111 and SI 111SS also include a hole threaded for a standard tripod camera mount screw 1 4 inch diameter 20 threads per inch for mounting them to a user supplied support 1 Remove the cap from the sensor see FIGURE 7 1 FIGUR...

Страница 15: ...tion 7 4 Datalogger Programming Short Cut is the best source for up to date datalogger programming code If your data acquisition requirements are simple you can probably create and maintain a datalogger program exclusively with Short Cut If your data acquisition needs are more complex the files that Short Cut creates are a great source for programming code to start a new program or add to an exist...

Страница 16: ... CR9000 X The Integ Fnotch parameter is often set to the 60 Hz option Use the default values for the RevDiff SettlingTime Mult and Offset parameters 7 4 3 Target Temperature Calculations These calculations are entered in CRBasic as expressions Calculate the target temperature using the following steps 1 Calculate slope 2 Calculate intercept 3 Convert sensor body temperature C to Kelvin 4 Calculate...

Страница 17: ...sor body temperature in Kelvin SBTempC sensor body temperature in degrees Celsius 8 Maintenance A primary source of inaccurate measurements for any radiation sensor is blocking of the optical path to the detector The window in the infrared sensor is inset and protected but it can become partially blocked by the following Spiders can make a nest in the entrance Use a cotton swab to apply a spider r...

Страница 18: ...cal coating on the window Let the solvent do the cleaning not mechanical force Repeat the cleaning with a new cotton swab to ensure a completely clean window In some environments sensors can stay clean for many months while in other environments the sensor needs frequent cleaning ...

Страница 19: ...ut program following the procedure in Section 4 QuickStart p 2 Finish the program On the Advanced tab click the CRBasic Editor button The program opens in CRBasic with the name noname CR_ Provide a name and save the program Once the file is edited with CRBasic Editor Short Cut can no longer be used to edit the datalogger program 2 The program can now be edited saved and sent to the datalogger 3 Im...

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Страница 21: ...ific to individual sensors The unique coefficients for each individual sensor are provided on the calibration sheet shipped with the sensor TABLE B 1 Wiring for Example Program SI 111 Wire Color SI 111SS Wire Color Description CR1000X Red White Diff High 2H Black Black Diff Low 2L Clear Clear Analog Ground Green Green Single ended SE1 Blue Blue Analog Ground White Red Excitation VX1 This example C...

Страница 22: ...FP2 0 False Sample 1 PanelT FP2 Average 1 TargmV FP2 False Average 1 SBTempC FP2 False Average 1 TargTempC FP2 False EndTable Main program program is making a measurement every 5 seconds BeginProg Scan 5 Sec 0 0 PanelTemp PanelT 60 Battery BattV Instruction to measure sensor body temperature Therm109 SBTempC 1 1 Vx1 0 60 1 0 0 Instruction to measure mV output of thermopile detector VoltDiff TargmV...

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