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TBSST04
User Manual
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Tekbox TBSST04 User Manual

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V1.9
TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
Factory 4, F5, Lot I-3B-1 | Saigon Hi-Tech Park | Tan Phu Ward, District 9 | Ho Chi Minh City | Tel +84 (83)5471340
E-mail office@tekbox.com| www.tekbox.com
TBSST04 is a soil temperature sensor with SDI-12 interface. It allows measuring the temperature on 3 different depth levels (up to 3 meters for each segment). The product is available in 3 variants, with one, two or three temperature sensors that are based on Swiss made PT1000 with 0.1C accuracy. The sensor is used to monitor the soil temperature and for specific applications like compost temperature monitoring where this parameter is critical to prevent sudden fire.
TBSST04 3 depth levels TBSST04 single depth level
Features
▪ Soil and compost temperature sensor ▪ Measures temperatures on 3 levels. ▪ Each segment length: up to 3 m ▪ Probe length: up to 9 m ▪ Customizable probe length ▪ SDI-12 Standard V1.4 ▪ 6 - 16V supply voltage ▪ Less than 80µA idle current ▪ Temperature accuracy: 0.1C
▪ Temperature resolution: 3 digits ▪ Dimensions: 118x13x13 cm ▪ Weight: 2.1 kg ▪ Operating Temperature Range:
- 40°C … + 80°C
Target Applications
▪ Soil temperature monitoring ▪ Compost temperature monitoring
V1.9
TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
Contents
1 INTRODUCTION 3 2 MEASUREMENT 3 3 PRODUCT SPECIFICATION 4 4 CALIBRATION 4 5 INSTALLATION 5 6 SDI-12 5 7 APPLICATION EXAMPLES 6 8 FUNCTIONAL DESCRIPTION 7 9 SUPPORTED SDI-12 V1.3 COMMANDS 7 10 SUPPORTED SDI-12 V1.4 COMMANDS 9 11 SUPPORTED EXTENDED COMMANDS 11 12 MECHANICAL DIMENSIONS 12 13 CABLE CONNECTION 14 14 ORDERING INFORMATION 15 15 HISTORY 15
Tables
Table 1 – Standard SDI-12 v1.3 commands 9 Table 2 – Standard SDI-12 v1.4 commands 11 Table 3 – Extended SDI-12 Commands 12 Table 4 – Cable Connection 14 Table 5 – Ordering Information 15 Table 6 – History 15
Figures
Figure 1 – TBSST04 and other sensors with SDI-12 interface connected to TBS03 SDI-12 to USB converter;
setup for controlling / testing sensors and for PC based data recording 6
Figure 2 – TBSST04 and other sensors with SDI-12 interface connected to Remote Telemetry Unit or Data
Recorder 6
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TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
1 Introduction
The TBSST04 is a rugged soil temperature probe with SDI-12 interface. It is made of high grade Pt1000 sensors and the electronic parts are mounted inside an UV resistant resin/glass
fiber fabrics reinforced tubes. The interior of the tube is potted with silicon for enhanced durability.
2 Measurement
The TBSST04 outputs the temperature for 3 different depth levels. Supported measurement commands:
aM! aMC! aC! aCC! Temperature first depth level aM1! aMC1! aC1! aCC1! Temperature second depth level aM2! aMC2! aC2! aCC2! Temperature third depth level aM3! aMC3! aC3! aCC3! Temperature for each depth level
Supported SDI-12 v1.4 commands: metadata commands
aIM! aIMC! aIC! aICC! Identify Measurement Commands aIM1! aIMC1! aIC1! aICC1! Identify Measurement Commands aIM2! aIMC2! aIC2! aICC2! Identify Measurement Commands aIM3! aIMC3! aIC3! aICC3! Identify Measurement Commands
aIM_001! aIMC_001! aIC_001! aICC_001! Identify Measurement Parameter (1st) aIM1_001! aIMC1_001! aIC1_001! aICC1_001! Identify Measurement Parameter (1st) aIM2_001! aIMC2_001! aIC2_001! aICC2_001! Identify Measurement Parameter (1st) aIM3_001! aIMC3_001! aIC3_001! aICC3_001! Identify Measurement Parameter (1st) aIM3_002! aIMC3_002! aIC3_002! aICC3_002! Identify Measurement Parameter (2nd) aIM3_003! aIMC3_003! aIC3_003! aICC3_003! Identify Measurement Parameter (3rd)
V1.9
TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
Extended SDI-12 commands:
aXSNnnnnnn! Set serial number where nnnnnn: 6 digits serial number
aX0n! Calibration at zero degree where: n=1,2,3 is the depth level index
aXTn,ff.ff! Calibration at ambient temperature where: n=1,2,3 is the depth level index,
ff.ff the ambient temperature aXSTUF! Set temperature unit to degree Fahrenheit aXSTUC! Set temperature unit to degree Celcius
3 Product Specification
• 3 high grade Pt1000 sensors
o Extremely short response time
o Low heat transfer, vibration resistant
o Long term stability: maximum drift=0.03% after 1000h at 600C
o -200 / + 600C
• UV resistant resin/glass fiber fabrics reinforced tube
o 18 mm outer diameter
o 3.5 mm wall thickness
o Potted with silicon
• Segment length of the profile probe can be fully customized up to a maximum segment length of 3 meters
(maximum probe size is 9 meters).
• SDI-12 Standard V1.4
• 6 - 16V supply voltage
• Temperature accuracy: 0.1C
• Temperature resolution: 3 digits
• Operating Temperature Range: - 40°C … + 80°C
• Weight and dimensions: variable depending on the tube length.
o For 1m probe and 1 depth level: 118x13x13 cm, 2.1 kg
• Current consumption: active 15mA; idle 80µA
• Standard cable length: 3m; any other length upon requirement
4 Calibration
TBSST04 is factory calibrated by inserting a 1kΩ resistor in lieu of Pt1000 sensor (which is equivalent to a zero degree Celcius calibration).
V1.9
TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
However user calibration is also possible by setting the actual temperature for a given depth level based on a reference through aXTn,ff.ff! SDI-12 command.
Examples:
• aXT1,-03.546! => calibrates depth level 1 with temperature -3.546 degrees Celcius
• aXT3,+28.925! => calibrates depth level 3 with temperature +28.925 degrees Celcius
5 Installation
TBSST04 is compatible with any data logger or remote telemetry unit with SDI-12 interface (v1.3 or v1.4). Refer to the data logger or RTU manual for further information.
6 SDI-12
SDI-12 is a standard for interfacing data recorders with microprocessor-based sensors. SDI-12 stands for serial/digital interface at 1200 baud. It can connect multiple sensors with a single data recorder on one cable. It supports up to 60 meter cable between a sensor and a data logger.
The SDI-12 standard is prepared by
SDI-12 Support Group (Technical Committee) 165 East 500 South River Heights, Utah 435-752-4200 435-752-1691 (FAX) http://www.sdi-12.org
The latest standard is version V1.4 which dates from December 1
rst
, 2017. The standard is available on the
website of the SDI-12 Support Group.
V1.9
TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
7 Application Examples
Figure 1 – TBSST04 and other sensors with SDI-12 interface connected to TBS03 SDI-12 to USB converter; setup for
controlling / testing sensors and for PC based data recording
Figure 2 – TBSST04 and other sensors with SDI-12 interface connected to Remote Telemetry Unit or Data Recorder
TBSST04
TBSST04
V1.9
TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
8 Functional description
The temperature can be measured on a specific depth level or reported for each level.
Below are examples of SDI-12 communication between a SDI-12 Recorder and TBSST04 to retrieve the measured temperature(s):
Measuring the temperature on a specific depth level
Ex. Measures temperature on the 2nd depth level:
SDI-12 Recorder TBSST04
0M1! 00011 0D0! 0+23.876
Measuring the temperature on each depth level
Ex. Reports the temperature from each depth level
SDI-12 Recorder TBSST04
0M3! 00033 0D0! 0+28.675+27.213+26.651
User can choose to report the temperature in degree Celcius or Fahrenheit by using extended SDI-12 commands aXSTUC!/aXSTUF!.
9 Supported SDI-12 v1.3 Commands
Following commands are supported by the TBSST04:
Command
Description
Response
a!
Acknowledge Active
a<CR><LF>
aI!
Send Identification
a14TEKBOXVNTBSST4rv<h><nnnnnn><fffffff><CR><LF>
With: <a>: SDI-12 address <h>: HW revision (one letter) <nnnnnn>: serial number (6 digits) <fffffff>: firmware version (7 digits) Example: 014TEKBOXVNTBSST4rvA1234560F00100<CR><LF>
aAb!
Change Address
b<CR><LF> Changing the sensor address from a to b
?!
Address Query
a<CR><LF>
aM!
Start Measurement
a0011<CR><LF>
V1.9
TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
Measures temperature – 1rst depth level
Delay: (1) seconds and number of values (1)
aMC!
Start Measurement and request CRC
Measures temperature – 1rst depth level and
calculates CRC
a0011<CR><LF> Delay: (1) second, number of values (1)
aC!
Start Concurrent Measurement
Measures temperature – 1rst depth level
a00101<CR><LF> Delay: (1) second and number of values (01)
aCC!
Start Concurrent Measurement and
request CRC
Measures temperature – 1rst depth level and
calculate CRC
a00101<CR><LF> Delay: (1) second, number of values (1)
aM1!
Start Measurement
Measures temperature – 2nd depth level
a0011<CR><LF> Delay: (1) seconds and number of values (1)
aMC1!
Start Measurement and request CRC
Measures temperature – 2nd depth level and
calculates CRC
a0011<CR><LF> Delay: (1) second, number of values (1)
aC1!
Start Concurrent Measurement
Measures temperature – 2nd depth level
a00101<CR><LF> Delay: (1) second and number of values (01)
aCC1!
Start Concurrent Measurement and
request CRC
Measures temperature – 2nd depth level and
calculate CRC
a00101<CR><LF> Delay: (1) second, number of values (1)
aM2!
Start Measurement
Measures temperature – 3rd depth level
a0011<CR><LF> Delay: (1) seconds and number of values (1)
aMC2!
Start Measurement and request CRC
Measures temperature – 3rd depth level and
calculates CRC
a0011<CR><LF> Delay: (1) second, number of values (1)
aC2!
Start Concurrent Measurement
Measures temperature – 3rd depth level
a00101<CR><LF> Delay: (1) second and number of values (01)
aCC2!
Start Concurrent Measurement and
request CRC
Measures temperature – 3rd depth level and
calculate CRC
a00101<CR><LF> Delay: (1) second, number of values (1)
aM3!
Start Measurement
Measures temperature for the 3 depth levels
a0033<CR><LF> Delay: (3) seconds and number of values (3)
aMC3!
Start Measurement and request CRC
Measures temperature for the 3 depth levels
and calculates CRC
a0033<CR><LF> Delay: (3) seconds, number of values (3)
aC3!
Start Concurrent Measurement
Measures temperature for the 3 depth levels
a00303<CR><LF> Delay: (3) seconds and number of values (03)
aCC3!
Start Concurrent Measurement and
request CRC
Measures temperature for the 3 depth levels
and calculate CRC
a00303<CR><LF> Delay: (3) seconds, number of values (3)
aD0!
Get Measurement Result(s)
Upon issuing the aD0! Command, TBSST04 will send the measurement results.
aV!
Start Verification
a0000<CR><LF>
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TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
Not supported
aRn!
aRCn!
Continuous Measurement
Continuous Measurement + CRC
a<CR><LF> Not supported
Table 1 – Standard SDI-12 v1.3 commands
10 Supported SDI-12 v1.4 commands
Command
Description
Response
aIM!
aM! Identify Measurement
Returns delay and number of parameters
a0011<CR><LF> Delay: (1) seconds and number of values (1)
aIMC!
aMC! Identify Measurement
Returns delay and number of parameters
a0011<CR><LF> Delay: (1) second, number of values (1)
aIC!
aC! Identify Measurement
Returns delay and number of parameters
a00101<CR><LF> Delay: (1) second and number of values (01)
aICC!
aCC! Identify Measurement
Returns delay and number of parameters
a00101<CR><LF> Delay: (1) second, number of values (1)
aIM1!
aM1! Identify Measurement
Returns delay and number of parameters
a0011<CR><LF> Delay: (1) seconds and number of values (1)
aIMC1!
aMC1! Identify Measurement
Returns delay and number of parameters
a0011<CR><LF> Delay: (1) second, number of values (1)
aIC1!
aC1! Identify Measurement
Returns delay and number of parameters
a00101<CR><LF> Delay: (1) second and number of values (01)
aICC1!
aCC1! Identify Measurement
Returns delay and number of parameters
a00101<CR><LF> Delay: (1) second, number of values (1)
aIM2!
aM2! Identify Measurement
Returns delay and number of parameters
a0011<CR><LF> Delay: (1) seconds and number of values (1)
aIMC2!
aMC2! Identify Measurement
Returns delay and number of parameters
a0011<CR><LF> Delay: (1) second, number of values (1)
aIC2!
aC2! Identify Measurement
Returns delay and number of parameters
a00101<CR><LF> Delay: (1) second and number of values (01)
aICC2!
aCC2! Identify Measurement
Returns delay and number of parameters
a00101<CR><LF> Delay: (1) second, number of values (1)
aIM3!
aM3! Identify Measurement
Returns delay and number of parameters
a0033<CR><LF> Delay: (3) seconds and number of values (3)
aIMC3!
aMC3! Identify Measurement
Returns delay and number of parameters
a0033<CR><LF> Delay: (3) seconds, number of values (3)
aIC3!
aC3! Identify Measurement
Returns delay and number of parameters
a00303<CR><LF> Delay: (3) seconds and number of values (03)
aICC3!
aCC3! Identify Measurement
Returns delay and number of parameters
a00303<CR><LF>
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TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
Delay: (3) seconds, number of values (3)
aIM_001!
aM! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;<CR><LF> (*)
aIMC_001!
aMC! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;ccc<CR><LF> Where ccc is the CRC (**)
aIC_001!
aC! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;<CR><LF> (*)
aICC_001!
aCC! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;ccc<CR><LF> Where ccc is the CRC (**)
aIM1_001!
aM1! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;<CR><LF> (*)
aIMC1_001!
aMC1! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;ccc<CR><LF> Where ccc is the CRC (**)
aIC1_001!
aC1! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;<CR><LF> (*)
aICC1_001!
aCC1! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;ccc<CR><LF> Where ccc is the CRC (**)
aIM2_001!
aM2! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;<CR><LF> (*)
aIMC2_001!
aMC2! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;ccc<CR><LF> Where ccc is the CRC (**)
aIC2_001!
aC2! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;<CR><LF> (*)
aICC2_001!
aCC2! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;ccc<CR><LF> Where ccc is the CRC (**)
aIM3_001!
aM3! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;<CR><LF> (*)
aIMC3_001!
aMC3! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;ccc<CR><LF> Where ccc is the CRC (**)
aIC3_001!
aC3! Identify Measurement
a,Temperature,Celcius;<CR><LF>
V1.9
TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
Parameters (1rst)
Returns parameter’s identification and unit
(*)
aICC3_001!
aCC3! Identify Measurement
Parameters (1rst)
Returns parameter’s identification and unit
a,Temperature,Celcius;ccc<CR><LF> Where ccc is the CRC (**)
aIM3_002!
aM3! Identify Measurement
Parameters (2nd)
Returns parameter’s identification and unit
a,Temperature,Celcius;<CR><LF> (*)
aIMC3_002!
aMC3! Identify Measurement
Parameters (2nd)
Returns parameter’s identification and unit
a,Temperature,Celcius;ccc<CR><LF> Where ccc is the CRC (**)
aIC3_002!
aC3! Identify Measurement
Parameters (2nd)
Returns parameter’s identification and unit
a,Temperature,Celcius;<CR><LF> (*)
aICC3_002!
aCC3! Identify Measurement
Parameters (2nd)
Returns parameter’s identification and unit
a,Temperature,Celcius;ccc<CR><LF> Where ccc is the CRC (**)
aIM3_003!
aM3! Identify Measurement
Parameters (3rd)
Returns parameter’s identification and unit
a,Temperature,Celcius;<CR><LF> (*)
aIMC3_003!
aMC3! Identify Measurement
Parameters (3rd)
Returns parameter’s identification and unit
a,Temperature,Celcius;ccc<CR><LF> Where ccc is the CRC (**)
aIC3_003!
aC3! Identify Measurement
Parameters (3rd)
Returns parameter’s identification and unit
a,Temperature,Celcius;<CR><LF> (*)
aICC3_003!
aCC3! Identify Measurement
Parameters (3rd)
Returns parameter’s identification and unit
a,Temperature,Celcius;ccc<CR><LF> Where ccc is the CRC (**)
(*) Or a,Temperature,Fahrenheit;<CR><LF> (**)Or a,Temperature,Fahrenheit;ccc<CR><LF>
Table 2 – Standard SDI-12 v1.4 commands
11 Supported Extended Commands
Command
Description
Response
aXSNnnnnnn!
Set 6 digits serial number nnnnnn aX_OK<CR><LF>
aX0n!
Temperature calibration at zero degree Celcius. N=1,2,3 is the depth level. Used for factory calibration using a 1kΩ resistor.
aX_OK<CR><LF>
V1.9
TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
aXTn,ff.ff!
Temperature calibration (user settings) where: n=1,2,3 is the depth level ff.ff: is the temperature in floating format (9 digits maximum including sign
and decimal point)
aX_OK<CR><LF>
aXSTUF!
Set temperature unit to degree Fahrenheit
aX_OK<CR><LF>
aXSTUC!
Set temperature unit to degree Celcius
aX_OK<CR><LF>
Table 3 – Extended SDI-12 Commands
12 Mechanical Dimensions
TBSST04 is available as a 1m probe in 3 variants based on the number of integrated PT1000 sensors (1 to 3).
• TBSST04 with 1 PT1000 sensor (segment length: 1m)
• TBSST04 with 2 PT1000 sensors (segment length: 50cm)
V1.9
TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
• TBSST04 with 3 PT1000 sensors (segment length: 33cm)
• UV resistant resin/glass fiber fabrics reinforced tube
o 18 mm outer diameter
o 3.5 mm wall thickness
• Aluminium housing:
V1.9
TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
With: T1 = M20 * 1.5 T2 = M20 * 1.5
13 Cable Connection
Cable Colour
Signal Assignment
Blue
SDI-12 Power
Yellow
SDI-12 Data
Brown
GND
Black
Shield (GND)
Table 4 – Cable Connection
V1.9
TBSST04
SDI-12 Soil Temperature Sensor 3 depth levels
14 Ordering Information
Part Number
Description
TBSST04_1
1 level soil temperature sensor – probe length: 1m
TBSST04_2
2 levels soil temperature sensor – probe length: 1m
TBSST04_3
3 levels soil temperature sensor – probe length: 1m
Custom (please contact Tekbox’ sales)
Segment length: maximum 3m Probe length: maximum 9m
Please mention in your order, if you require a different cable length.
Table 5 – Ordering Information
15 History
Version
Date
Author
Changes
V1.0
11.12.2019
Philippe Hervieu
Creation of the document
V1.1
12.12.2019
Philippe Hervieu
Update SDI-12 v1.4 commands with CRC
V1.2
24.12.2019
Philippe Hervieu
Mechanical information and supported temperature range
V1.3
17.01.2020
Philippe Hervieu
Add pictures
V1.4
13.02.2020
Philippe Hervieu
Temperature accuracy/resolution added
V1.5
17.02.2020
Philippe Hervieu
Dimensions and weight added.
V1.6
24.02.2020
Philippe Hervieu
Mechanical dimensions and ordering information updated
V1.7
16.03.2020
Philippe Hervieu
Update MC/CC responses
V1.8
22.06.2020
Hoa Hoang
Correction: 13 Cable Connection
V1.9
30.03.2021
Philippe Hervieu
Update SDI-12 response to aI!
Table 6 – History
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