Campbell TempVue 20 SDI-12, Product Manual

Page 1: ...Revision 11 2023 Copyright 2023 Campbell Scientific Inc TempVue 20 SDI 12 PT 100 RTD Class A Precision Digital Air Temperature Sensor PRODUCT MANUAL...

Page 2: ...digital cell phones and aerials antennas may also not be applicable according to your locality Some brackets shields and enclosure options including wiring are not sold as standard items in the Europ...

Page 3: ...8 1 SDI 12 sensor measurements 13 8 2 Updating the operation system OS using XLOADOS SDI 12 command 15 9 Maintenance and troubleshooting 17 9 1 Maintenance 17 9 2 Troubleshooting 18 10 References 18...

Page 4: ...rrent measurement commands aC 23 B 1 8 Start measurement commands with cyclic redundancy check aMC and aCC 25 B 1 9 Stopping a measurement command 25 B 1 10 Send data command aD0 aD9 25 B 2 SDI 12 tra...

Page 5: ...the shipping package do not damage or cut the cable jacket If damage to the cable is suspected consult with a Campbell Scientific support engineer l Although rugged the TempVue 20 SDI 12 should be han...

Page 6: ...shows the components typically shipped with the TempVue 20 SDI 12 Table 3 1 TempVue 20 SDI 12 components Component Quantity Description Image TempVue 20 SDI 12 1 Measures air temperature Extension ca...

Page 7: ...sensor and assign data logger wiring terminals Short Cut is available as a download on www campbellsci com It is included in installations of LoggerNet RTDAQ and PC400 The following procedure shows us...

Page 8: ...s C1 To change to another terminal click the terminal name and select another terminal Click OK after wiring the sensor 5 Repeat steps three and four for other sensors you want to measure Click Next T...

Page 9: ...ish and save the program If the data logger is connected to the computer send the program just created to the data logger 9 If the sensor is connected to the data logger check the output of the sensor...

Page 10: ...ents with high wind sun or precipitation levels the TempVue 20 SDI 12 must be housed in a radiation shield such as the RAD06 6 plate shield Figure 5 1 TempVue 20 SDI 12 with the cable attached Feature...

Page 11: ...d probe length 18 1 cm 7 125 in tip to end of shield extender Weight 70 g 0 15 lb for probe with shield extender including standard 1 m 3 ft cable with M12 connector Compliance View documents at www c...

Page 12: ...Contact Campbell Scientific if a longer cable is required Table 7 1 p 8 provides data logger connections Connect the wires in the order shown in the table Table 7 1 SDI 12 wire color function and data...

Page 13: ...Short Cut creates are a great source for programming code to start a new program or add to an existing custom program NOTE Short Cut cannot edit programs after they are imported and edited in CRBasic...

Page 14: ...A guidance for standard meteorological stations is to locate the sensor over an open level area at least 9 m 29 5 ft in diameter The surface should be covered by short grass or the natural earth surfa...

Page 15: ...ing a better measurement The RAD shields attach to a crossarm mast or user supplied pipe with a 2 5 to 5 3 cm 1 0 to 2 1 inch outer diameter The Apogee Instruments aspirated TS100SS shield can also be...

Page 16: ...ot overtighten the nut as you risk damaging the sensor body and also making service of the sensor more difficult in the future Figure 7 2 Cut away view shows TempVue 20 SDI 12 insertion in a RAD shiel...

Page 17: ...ives the data from the sensor or the sensor timeout expires If the data logger receives no response it will send the command a total of three times with three retries for each attempt or until a respo...

Page 18: ...pect reading 2 Error reading 4 Sensor stuck 8 Sensor error aM3 or aC3 1 Temperature F 2 60 s average temperature F 3 Minimum temperature F 2 4 Maximum temperature F 2 5 Average temperature F 2 6 Measu...

Page 19: ...d XLOADOS sends the new operating system OS to the sensor NOTE Only the CR6 CR1000X and CR300 series data loggers are compatible with the XLOADOS functionality Verify that the data logger has been upd...

Page 20: ...OperatingSystems directory File type may need to be changed to All Files for the OS file to show up on the list d Verify that the file is now on the data logger CPU drive 3 Connect the sensor to the d...

Page 21: ...ions require a returned material authorization RMA and completion of the Statement of Product Cleanliness and Decontamination form Refer to the Assistance page at the end of this manual for more infor...

Page 22: ...a Switzerland WMO 2021 Instruments and Observing Methods Generic Automatic Weather Station AWS Tender Specifications World Meteorological Organization Report 136 Geneva Switzerland AASC 1985 The State...

Page 23: ...nce the file is edited with CRBasic Editor Short Cut can no longer be used to edit the program 2 To add the Short Cut wiring information into the new CRBasic program open the DEF file located in the C...

Page 24: ...r Sniffer Mode videos B 1 SDI 12 command basics SDI 12 commands have three components l Sensor address a a single character and the first character of the command Use the default address of zero 0 unl...

Page 25: ...active sensor responds with its address B 1 2 Send identification command al Sensor identifiers are requested by issuing command aI The reply is defined by the sensor manufacturer but usually includes...

Page 26: ...B 1 4 Address query command Command requests an address of the connected sensor The sensor responds to the query with the address a This command should only be used with one sensor on the SDI 12 bus a...

Page 27: ...CR LF Sensor 0 immediately indicates that it will return two values within the next 35 seconds 0 CR LF Within 35 seconds sensor 0 indicates that it has completed the measurement by sending a service r...

Page 28: ...R LF Sensor Y immediately indicates that it will have 6 06 values ready for collection within the next 40 040 seconds ZC The data logger makes a request to sensor Z to start a concurrent measurement Z...

Page 29: ...ger as it comes The code returned is based on the SDI 12 protocol See the SDI 12 communication specification for version 1 4 version 1 4 January 2019 available at www sdi 12 org to learn more about ho...

Page 30: ...r settings in probes using transparent mode Transparent mode is useful in troubleshooting SDI 12 systems because it allows direct communication with probes Data logger security may need to be unlocked...

Page 31: ...onfiguration Utility 3 Under Device Type type the data logger model and double click on the model type This example uses a CR1000X directly connected to the computer USB port 4 Select the correct Comm...

Page 32: ...seconds the mode is exited In that case simply type SDI12 again press Enter and type the correct control port number when prompted 11 To change the SDI 12 address type aAb where a is the current addre...

Page 33: ...pport Group 2017 SDI 12 A Serial Digital Interface Standard for Microprocessor Based Sensors Version 1 4 River Heights Utah https sdi 12 org specification TempVue 20 SDI 12 PT 100 Class A Precision Ai...

Page 34: ...c regional offices handle repairs for customers within their territories Please see the back page of the manual for a list of regional offices or visit www campbellsci com contact to determine which C...

Page 35: ...provisions of Campbell Scientific s Terms the provisions of Campbell Scientific s Terms shall prevail Furthermore Campbell Scientific s Terms are hereby incorporated by reference into this Warranty T...

Page 36: ...n request It is the policy of Campbell Scientific to protect the health of its employees and provide a safe working environment In support of this policy when equipment is returned to Campbell Scienti...

Page 37: ...tachments to tripods and towers The use of licensed and qualified contractors is highly recommended l Read all applicable instructions carefully and understand procedures thoroughly before beginning w...

Page 38: ...ng facilities Avoiding unnecessary exposure to radio transmitter radiation l Where the equipment includes a radio transmitter precautions should be taken to avoid unnecessary exposure to radiation fro...

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