Sutron Accubar 5600-0120-3 Operation And Maintenance Manual

Sutron Accubar 5600-0120-3 Operation And Maintenance Manual

Barometric pressure sensor

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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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Summary of Contents for Sutron Accubar 5600-0120-3

  • Page 1 Accubar® SDI-12 Barometric Pressure Sensor 5600-0120-3 OPERATIONS & MAINTENANCE MANUAL Part No. 8800-1191 Revision B 30 Nov 2017...
  • Page 2 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.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1 Introduction ......................5 2 Quick Start ......................5 3 Cabling ......................... 6 3.1 Sutron-Supplied Cable ................... 6 4 Setup & Operation ....................7 4.1 Introduction ......................7 4.2 Nomenclature ......................7 4.3 Setting the Address ....................7 Using a Command to Set the Address ............
  • Page 4 8. Troubleshooting and Maintenance ............... 38 Troubleshooting ......................38 Maintenance........................ 38 ® 9. Specifications for 5600-0120-3 Barometric ACCUBAR ........39 Appendix A -- Introduction to Pressure Measurement ..........40 Appendix B – Sutron Customer Service Policy ............44 Appendix C – Commercial Warranty ................. 45...
  • Page 5: Introduction

    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...
  • Page 6: Cabling

    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 ®...
  • Page 7: Setup & Operation

    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.
  • Page 8 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.
  • Page 9: Verifying The Address And Operation

    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.
  • Page 10: Always Supported

    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.
  • Page 11: Improved Data Integrity Checking

    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.
  • Page 12: Making A Concurrent Measurement (C Command)

    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.
  • Page 13 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...
  • Page 14: Making A Non-Concurrent Measurement With Crc-16 (Mc Command)

    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.
  • Page 15: Making A Concurrent Measurement With Crc-16 (Cc Command)

    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.
  • Page 16 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.
  • Page 17: Other Measurements

    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.
  • Page 18: Setting User Units

    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)
  • Page 19: Setting Station Elevation

    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. ®...
  • Page 20: Configuring The Averaging Time

    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.
  • Page 21: Resetting The Unit To Factory Default Configuration

    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.
  • Page 22: Command Reference

    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 ®...
  • Page 23 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...
  • Page 24 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...
  • Page 25 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...
  • Page 26 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...
  • Page 27 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)
  • Page 28 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...
  • Page 29 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...
  • Page 30 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...
  • Page 31: Accubar Extended Commands

    (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- ®...
  • Page 32 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.
  • Page 33 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...
  • Page 34: Installation

    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. ®...
  • Page 35: Accubar Sdi-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 Pg

    Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 35 Figure 2 - Using External R feet Figure 3 - Using External L Feet...
  • Page 36: Calibration

    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 ®...
  • Page 37 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.
  • Page 38: Troubleshooting And Maintenance

    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.
  • Page 39: Specifications For 5600-0120-3 Barometric Accubar

    Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017 pg. 39 ® Specifications for 5600-0120-3 Barometric ACCUBAR Dimensions 2.6" X 2.6" X 1.6" excluding cable gland, hose barb, and optional supplied mounting feet Weight 0.3 lb. Range 500 to 1100mB (hPa) 14.8 to 32.5”...
  • Page 40: Appendix A -- Introduction To Pressure Measurement

    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.
  • Page 41 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...
  • Page 42 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.
  • Page 43 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.
  • Page 44: Appendix B - Sutron Customer Service Policy

    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.
  • Page 45: Appendix C - Commercial Warranty

    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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