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Table of Contents
Troubleshooting
Summary of Contents for Accutron I.S. DRIFT
- Page 1 I.S. I.S. I.S. I.S. DRIFT / DRIFT / DRIFT / DRIFT / I.S. I.S. I.S. I.S. FAN Intrinsically Safe Airflow Metering Systems Technical / Operations Manual Manual Manual Manual MODEL: ACCIS-SYS-002-DR (Drift) ACCIS-SYS-002-FN (Fan) V07.10.2020 &...
- Page 2 IMPORTANT NOTICE The Accutron IS family of instruments is the exclusive copyright properties of Accutron Instruments Inc. Accutron Instruments Inc. reserves the right to make changes to the Accutron products and manuals without further notice to improve reliability, function or design. Accutron Instruments Inc. does not assume any liability arising out of the application or use of any product described herein, nor does it convey any license under its patent rights, nor the rights of others.
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Page 3: Table Of Contents
Table of Contents S E C T I O N 1 - G E N E R A L I N F O R M A T I O N The Manual ................. 4 Safety Guidelines ................5 Information About Your System ..........5 Specifications for the Accutron IS Drift/Fan ........ - Page 4 A P P E N D I X Glossary ................. 25 Equations ................. 26 Accutron IS Drift Parts List ............27 Accutron IS Fan Parts List .............. 28 Component Check List ..............29 A P P E N D I X B - D I A G R A M S Wiring Diagram ................
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Page 5: Section 1 - General Information
Section 1 - General Information The Manual Refer to this manual for proper installation, operation and maintenance of the Accutron IS Instrument. Special attention must be paid to warnings and notices highlighted from the rest of the text by gray boxes. Warning: means that failure to observe the necessary precautions can result in death, serious injury, and/or considerable material damage. -
Page 6: Safety Guidelines
Safety Guidelines Warning notices must be observed to ensure personal safety as well as that of others, and to protect the product and the connected equipment. This device/system should only be set up and operated in conjunction with this manual. Qualified personnel are only authorized to install and operate this equipment in accordance with established safety practices and standards. -
Page 7: Specifications For The Accutron Is Drift/Fan
Specifications for the Accutron IS Drift/Fan – Airflow Sensor Connections: Screw terminal Block Type Transducers: 3 ½” (Dia.) X 9 ” (L) Display Readout: 16 Characters LCD display. Each digit is 0.57” (H) X 0.24” (W) Power Supply: 12.6 VDC intrinsically safe power supply Power Consumption: <... -
Page 8: Section 2 - Installation
Section 2 – Installation System Explanation The Accutron airflow sensors are compact and reliable instruments, especially designed for measuring airflows in mine environments. The Accutron IS Drift System is for airflow measurements in mine drifts whereas the Accutron IS Fan System is for measuring the flow output of large mine fans. -
Page 9: Choosing A Location
Choosing a Location The best location to install the instrument is in a straight section of tunnel that is at least 3 tunnel widths long. In such a section, the airflow distribution will be well behaved with a maximum airflow in the center and minimum airflow on the sides (Figure A). We should try to avoid locations where the airflow is concentrated in one of the corners (Figure B). -
Page 10: Mounting The Sensors
Mounting the Sensors When planning a mounting location for the wall mount sensors, we recommend mounting one sensor near the top of the drift or duct and the other sensor located near the bottom downstream from the first on the opposite side, with an “imaginary line” between them intersecting the airflow at a typical angle of 120 degrees. -
Page 11: Section 3 - Programming
Section 3 – Programming Navigation Buttons • To program the settings the programming switch must be in the PROG position. • The LED display will show CONFIG. • There are 5 buttons. Up, down, left, right, and Select/Enter. • Use the up and down buttons to select a specific menu or option. •... -
Page 12: Programming Datasheet
Programming Datasheet Before actually programming the Accutron IS, it is a good idea to record the parameters in the following form. The form should also be filed for future reference. Menu Option Default Setting New Setting Entered Configuration Menu (1A) Flow units A (M/S) (1B) -
Page 13: Auto Range Feature
Auto Range Feature The Accutron IS comes with a unique feature called auto ranging. It is a quick and easy way to install your setup without measuring your face-to-face distance. To use this feature, you must do the following: 1. Make sure that all cables and wires are attached and safely secured. 2. -
Page 14: Quick Start Programming
Quick Start Programming These step-by-step instructions show you how to quickly program the Accutron IS unit using most of the default settings. 1. Move the program switch from the RUN position to the PROG position. The display should read CONFIG. 2. -
Page 15: Menu Flow Chart
Menu Flow Chart... -
Page 16: Detailed Menu Setup
Detailed Menu Setup... -
Page 20: Section 4 - Modbus
Section 4 – Modbus Modbus Register & & • • • • • • • • •... -
Page 21: Modbus Connection
Modbus Connection... -
Page 22: Section 5 - Troubleshooting
Section 5 – Troubleshooting Frequently Asked Questions A) Why am I not seeing anything on the display? • Check power connections. When the instrument powers on for the first time, it should read “ACCUTRON” followed by the code version before entering run mode. •... - Page 23 G) What does the star (*) mean at the end of my display? The star indicates that the reading is currently over the full-scale limit. You may want to verify if this is the case. If so, you can adjust the full-scale limit to a higher value. H) What does the square (donut) mean in the middle of the display? The donut means that the instrument is rejecting readings acquired because there is a problem (could be an obstruction like a vehicle parked between both sensors).
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Page 24: Troubleshooting Flowchart
Troubleshooting Flowchart... -
Page 26: Glossary
Appendix A Glossary Autorange: An automatic function that measures the face-to-face distance. This distance should be accurate to ± 6 inches and does not affect the accuracy of the instrument. Baseline distance: The distance of the two sensors in the direction of the airflow. -
Page 27: Equations
Snapping: In operation, the sensor transducers are energized alternately to transmit an ultrasonic pulse. You can hear a “click” when it does this. We refer to this as “snapping” Transducer: The sensor that sends and receives ultrasonic signals. Ultrasonic: Of or relating to acoustic frequencies above the range audible to the human ear. -
Page 28: Accutron Is Drift Parts List
Accutron IS Drift Replacement Parts List – Mine Drift Airflow Sensor Item Part number and Ordering information ACCIS-XDC-ASY-001-DR Accutron IS Drift Transducer. Replacement sensor/transducer for the Accutron IS Drift Air Flow Meter. ACCIS-CAB100-ASY-002 Standard Accutron 100 foot cable assembly pre-assembled with connectors. -
Page 29: Accutron Is Fan Parts List
Accutron IS Fan Replacement Parts List – Mine Fan Airflow Sensor Item Part number and Ordering information ACCIS-XDC-ASY-001-FN • Accutron IS Fan Transducer. Replacement sensor/transducer for the Accutron IS Fan Air Flow Meter. ACCIS-CAB100-ASY-002 Standard Accutron 100 foot cable assembly pre-assembled with connectors. -
Page 30: Component Check List
Accutron IS Drift component checklist Indicating Transmitter – Qty (1) 100’ cables w/ IP68 rated connectors – Qty (2) Ultrasonic Transducers – Qty (2) Mounting Brackets with Pan & Tilt adjustment – Qty (2) Accutron IS Fan component checklist Indicating Transmitter – Qty (1) 100’... -
Page 31: Appendix B - Diagrams
Appendix B – Diagrams Front View (Door Removed) NAV BUTTONS PROG RESET Accutron I.S. Barrier Board Accutron Power Isolated Analog Input Modbus Output I.S.+5V I.S. 0V 12.6VDC I.S. Power Supply 5.88VDC I.S. Analog Power Power Measuring Supply Supply Device (4-20mA) J3 Isolated Modbus –... -
Page 32: Enclosure Dimensions
Front View (Door Removed) 6" NAV BUTTONS PROG 10 ¾” 10" RESET From I.S. Supply RS485 DATA 4-20mA Out I.S.+5V I.S. 0V 8" Depth = 5" 1 inch = ACCIS-CNTRL-DEM-002-DWG Description Date MM-DD-YY Accutron IS Airflow Sensor July 2012 Rev B Drawn to Scale 07-13-12 Dimension Diagram...