Tipping bucket interface with smart compensation (18 pages)
Summary of Contents for Sutron Accubar 5600-0120-3
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Accubar® SDI-12 Barometric Pressure Sensor 5600-0120-3 OPERATIONS & MAINTENANCE MANUAL Part No. 8800-1191 Revision B 30 Nov 2017...
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 2 Manual Version Control Version Date Author Change Description 1.01 March 2014 Lewis Initial Release Rev A Sept 2014 Robin Ovington Formatting changes Rev B Nov 2017 Jerry Added additional operational and specification details.
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 5 Introduction ® The 5600-0120-3 ACCUBAR Pressure Sensor is a solid-state pressure transducer suitable for data collection and ® monitoring applications. The ACCUBAR sensor has been designed with the following features to operate in a wide range of applications: low power standby power is 0.05 mA, average power when taking...
013 SUTRON BARO-12.120120002B1.01 which shows a response from address 0, that the unit supports SDI-12 specification 1.3 (and therefore 1.2, 1.1, and 1.0), that the manufacturer is SUTRON, and that the model is a BARO-1. Cabling 3.1 Sutron-Supplied Cable ®...
SDI-12, you will need to connect it to a data recorder, such as a Sutron 7310, 8210, 8310, 9210, or Xpert which is capable of issuing standard and extended SDI-12 commands. Follow the instructions in Sections 2 and 3 in order to make these connections.
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 8 ® The ACCUBAR also supports an alternate version of the unknown address command which is a command acknowledge to a wildcard address. The syntax for this version is: Beginning with version 1.2 of the SDI-12 specification there is an address query command defined.
SDI specifications 1.0 plus some extended commands defined by Sutron. All commands start with a single-character address and end in an exclamation point. The address is a single character with values 0 to 9, :;<=> ?, A to Z, and a to z.
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 10 atttn where a is the address, ttt is the amount of time, in ® seconds, the ACCUBAR needs to make the measurement or process the command and n is the number of values that can be collected.
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 11 Improved data integrity checking The measurement command classes with CRC-16 (MC and CC) offer additional data integrity checking over the non CRC-16 commands (M and C). The non CRC-16 commands offer data integrity checking in the form of parity and the SDI-12 command structure.
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 12 where a is the address, v is the data value and u indicates the units. Both v and u have the format of a polarity (+ or -) sign followed by up to seven digits, including a decimal point.
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 13 expected to issue this command and automatically handle the reply to collect data. You can also issue the command yourself. In reply, the sensor will respond with attt02 Acknowledging it is address a and indicating that after ttt seconds are allowed for the measurement, 2 values...
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 14 In most cases, you will not set up the recorder to store this units identifier. It is provided in response to the standard measure command to eliminate confusion as to the computation used to come up with the final value.
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 15 The u indicates the units of the measurement. When u is 0, the value has units of mB(hPa). When u is 1, the units are inches of mercury ("Hg). When u is 9, the units depend on a user entered slope and offset.
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 16 When the measurement is complete, the sensor does NOT issue a service request. Note: this is different from the M and MC commands. To request the data after a measurement, aD0! where a is the address character and D0 is the command to retrieve measured data.
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 17 Other Measurements The SDI-12 standard allows for other measurement commands such as M1, M2 etc., other current measurement commands such as C1, C2, etc., other non-concurrent measurements with CRC-16 such as MC1, MC2, etc, and other concurrent measurement with CRC-16 such as CC1, CC2, etc.
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 18 aXUP+n+d! where n is one of the selections from the following table and d is the number of digits to the right of the decimal point. Type Units Comments mB (hPa)
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 19 For example, the following command will set the scale to 70.32 and the offset to 0.0: aXUU+70.32+0 Similarly, the slope and offset can be set to any values that will produce the desired units. ®...
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 20 ® When the ACCUBAR is done with the self-calibration, the new elevation offset is stored into memory. A subsequent aD0! command will display this offset in units of mB. The offset can also be displayed using the M3 command.
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 21 4.6 Resetting the unit to Factory Default Configuration ® The ACCUBAR supports a reset to factory default command. The reset to factory defaults command provides a means to reset most user configurable parameters in a unit back to the factory defaults. If the previous history of a unit is not known, it is recommended that this command be issued before configuring the unit to ensure a known starting configuration.
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 22 Command Reference This chapter documents the commands supported by the ACCUBAR. The commands are listed in alphabetical order within a section. 5.1 Accubar Basic SDI-12 Commands ®...
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 23 Command Description Command Syntax Sensor response (underlined) (command underlined) "a" represents the single-character address Request Concurrent aC2! attt02 Temperature ttt is the time in seconds until the Measurement measurement is ready and 02 is the number of values that can be collected...
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 24 Command Description Command Syntax Sensor response (underlined) (command underlined) "a" represents the single-character address Request Concurrent aC6! attt04 Temperature and Pressure ttt is the time in seconds until the Measurement measurement is ready and 04 is the number of values that can be collected...
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 25 Command Description Command Syntax Sensor response (underlined) (command underlined) "a" represents the single-character address Request User Scale, User aCC3! a00003 Offset, and Field 000 is the time in seconds until the Calibration Offset with measurement is ready and 3 is the number of CRC-16...
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OR the command was aborted by sending a new command before the measurement time expired OR a service request has been received. Send Identification a13 SUTRON BARO-12.1sssssssBvvv supports SDI version 1.3 commands SUTRON manufacturer BARO-1 Accubar model number...
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 27 ® Command Description Command Syntax ACCUBAR response (underlined) (command underlined) "a" represents the single-character address Request Pressure aM1! attt1 Measurement in mB ttt is the time in seconds until the measurement (factory calibrated is ready, 1 is the number of values that can be value)
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 28 ® Command Description Command Syntax ACCUBAR response (underlined) (command underlined) "a" represents the single-character address Request Temperature aM6! attt4 and Pressure ttt is the time in seconds until the measurement Measurement is ready and 4 is the number of values that can be collected...
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 29 Command Description Command Syntax Sensor response (underlined) (command underlined) "a" represents the single-character address Request Temperature aMC2! attt2 Measurement with ttt is the time in seconds until the measurement CRC-16 is ready and 2 is the number of values that can be collected...
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 30 Command Description Command Syntax Sensor response (underlined) (command underlined) "a" represents the single-character address Request Temperature aMC6! attt04 and Pressure ttt is the time in seconds until the measurement Measurement with is ready and 04 is the number of values that can CRC-16...
(command underlined) "a" represents the single-character address Request unknown *X?! address ® This command causes any Sutron ACCUBAR Accubar’s address. to identify itself. If you have more than one ® ACCUBAR connected, the result may be garbled. There is no guarantee that non- ®...
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 32 ® Command Command Syntax ACCUBAR response (underlined) Description (command underlined) "a" represents the single-character address Self-Cal the aXSdu! attt1 Elevation Offset where d is the desired reading for the sensor where ttt indicates the command will be and in the units indicated by u.
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 33 ® Command Command Syntax ACCUBAR response (underlined) Description (command underlined) "a" represents the single-character address Set pressure units aXUP+n+d! a0012 (Version 1.5 and n = 0 mB (hPa) indicating the command will be complete in 1 higher for setting...
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 34 Installation ® The ACCUBAR will return accurate and reliable pressure data in any mounting position. We recommend, however, mounting the sensor with the connector and cable gland pointing downward. ®...
500 to 1100 mB. This ensures that the ACCUBAR meets the specifications over the complete pressure and temperature range. An Accubar can be sent back to the factory for a complete calibration over temperature. The Sutron Part number for this calibration service is: 8700-0005 Metrology Lab Calibration ®...
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 37 where: press. in mB is the factory calibration pressure as returned by the M1 command. calibration offset is entered by the XC command calibration scale is entered by the XC command field offset is entered by the XE or XS commands units scale and units offset are set by the combination of the XUP and XUU commands.
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 38 Troubleshooting and Maintenance Troubleshooting The following checklist will help in troubleshooting problems: Problem Possible Cause No data Faulty wiring -- check all wiring and terminations No power -- check fuse in the data recorder and power at sensor.
Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 40 Appendix A -- Introduction to Pressure Measurement TYPES OF PRESSURE MEASUREMENTS ABSOLUTE (PSIA) Pressure is measured with respect to an absolute vacuum. DIFFERENTIAL (PSID) Pressure is measured with respect to a second pressure port. GAUGE (PSIG) Pressure is measured with respect to atmospheric pressure.
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 41 PRESSURE UNITS BAROMETRIC PSIA pounds per square inch absolute (industrial units) millibars hectoPascals (WMO unit of measure) mmHg millimeters of mercury at 0 degrees C (scientific units) "Hg inches of mercury at 0 degrees C (common US unit) Atmospheres...
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The following graph illustrates why the temperature coefficient is an important specification for remote equipment. In an indoor environment a competitor's barometer is about a 0.5 mB instrument. Over the operating temperature range of Sutron equipment, it degrades to a +3 mB instrument.
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Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 43 E xa mple T e mpe ra ture e rror of a C ompe titor's 0 .5 mB "A ccura te " Ba rome te r Temperature in degrees C Hysteresis - This is a measure of deviation in the output when passing through an input point from two different directions.
Please provide our Customer Service Representative with your email address when receiving the RMA number so that we can email you when your equipment is received at Sutron and again when it is shipped back to you.
All shipments shall be accomplished by best-way surface freight. Sutron shall in no event assume any responsibility for repairs or alterations made other than by Sutron. Any products repaired or replaced under this Warranty will be warranted for the balance of the Warranty period or for a period of 180 days from the repair shipment date, whichever is greater.
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