Greyline OCF 6.1 User Manual

Open channel flow monitor

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USER'S GUIDE

Installation & Operation

Instructions

Open Channel Flow Monitor

Model OCF 6.1

Manual Series A.1.0

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Summary of Contents for Greyline OCF 6.1

Page 1 USER'S GUIDE Installation & Operation Instructions Open Channel Flow Monitor Model OCF 6.1 Manual Series A.1.0...
Page 2 Note: This page has been left blank intentionally.
Page 3: Table Of Contents
OCF 6.1 Open Channel Flow Monitor INDEX CONNECTIONS ....................4 KEYPAD SYSTEM .................... 6 CALIBRATION MENU ..................7 ICONS ......................... 8 MAIN DISPLAY ....................9 MESSAGE ICON ....................9 STATUS......................9 PASSWORD ..................... 10 UNITS/MODE ....................11 CALIBRATION....................13 CHANNEL SETUP ..................16 RELAY PARAMETERS ..................
Page 4: Connections
OCF 6.1 Open Channel Flow Monitor CONNECTIONS: POWER INPUT: The standard model requires AC power input between 100 to 240 VAC 50/60Hz. No adjustments are necessary for voltages within this range. Optional DC: 9-32 VDC. Connect to + and - terminals.
Page 5 OCF 6.1 Open Channel Flow Monitor CONNECTIONS SENSOR CORE SHLD SERIAL COMMUNICATION OPTION RS -485 Output EXTRA RELAYS OPTION RLY3 RLY4 RLY5 RLY6 POWER INPUT – 4-20mA HEATER OPTION RLY2 RLY1 Page 5...
Page 6: Keypad System
OCF 6.1 Open Channel Flow Monitor KEYPAD SYSTEM The OCF 6.1 uses a menu system. Arrows show the four directions to leave a menu box. Press a key to move to the next item in the direction shown. Move the cursor (highlighted) under numerals and increase or decrease numerals with the ...
Page 7: Calibration Menu
OCF 6.1 Open Channel Flow Monitor CALIBRATION MENU - - Un i t s / Mo d e - - - - - - - -  Mo d e F l o w L i n e a r...
Page 8: Icons
OCF 6.1 Open Channel Flow Monitor ICONS Message waiting. Press  Data logging Data logging USB file download. File download completed. Download Error. Echo OK. Loss of Echo . Page 8...
Page 9: Main Display
The main display shows the units selected from the Units/Mode menu, Level, Range, Flow, HRT, and Volume rate being measured, TOTALIZER and RELAY states. The OCF 6.1 will start-up with this display. T o t 2 0 1 3 0 . 8 USG...
Page 10: Password
OCF 6.1 Open Channel Flow Monitor 24 HR LOG - - 2 4 h r l o g - - - - - - - - - -  Da t e J u n 2 2 / 2 0 2 0...
Page 11: Units/Mode
OCF 6.1 Open Channel Flow Monitor UNITS/MODE - - Un i t s / Mo d e - - - - - - - -  Mo d e Fl o w L i n e a r , press the  and then the  or  to select Flow or Velocity.
Page 12 OCF 6.1 Open Channel Flow Monitor UNITS/MODE cont. - - Un i t s / Mo d e - - - - - - - -  Mo d e Fl o w L i n e a r , press the and then the  or  to select the engineering units...
Page 13: Calibration
Range reading. Press  and  or  to change the number of seconds LOE Time without receiving an echo before the OCF 6.1 displays ECHO LOSS, and Control relays change state as calibrated under Relay Parameters.
Page 14 OCF 6.1 Open Channel Flow Monitor CALIBRATION cont. - - Ca l i b r a t i o n - - - - - - -  Ra n g e Choose between OFF, FIR (Default), or LOW PASS.
Page 15 2. Check the maximum range with the sensor installed by: When liquid is at zero level press  to view the reading in Range menu. Use this range measured by the OCF 6.1 as the Status setting. Max Range Carefully measure distance from sensor to zero level with a tape measure, and use this measurement as the setting.
Page 16: Channel Setup
OCF 6.1 Open Channel Flow Monitor CHANNEL SETUP Ch a n n e l Se t u p - - - - - -  T y p e V- n o t c h Cu s t o m...
Page 17 OCF 6.1 Open Channel Flow Monitor CHANNEL SETUP cont. Ch a n n e l Se t u p - - - - - - Ch a n n e l Se t u p - - - - - -...
Page 18 CFS, and head in units of feet. If you determined a K & n coefficient outside the use of the Greyline Find K&n software, be sure that the coefficients are in these units, otherwise you will need to convert them before entering them in the meter.
Page 19: Relay Parameters
OCF 6.1 Open Channel Flow Monitor RELAY PARAMETERS - - Re l a y Pa r a me t e r s - -  Re l a y F u n c t i o n F l o w Press ...
Page 20: Data Logging
OCF 6.1 Open Channel Flow Monitor DATA LOGGING - - Da t a L o g g i n g - - - - - - -  L o g Si t e I D Setup Mo d e...
Page 21 OCF 6.1 Open Channel Flow Monitor Plug a USB Flash Memory Drive (one is included with the OCF 6.1) into the USB output port on the instrument. The instrument display will show the USB file download icon until the log file is transferred to the memory card and then display file download completed icon.
Page 22: Special Functions
OCF 6.1 Open Channel Flow Monitor SPECIAL FUNCTIONS - - Sp e c i a l F u n c t i o n s -  L a n g u a g e En g l i s h...
Page 23 OCF 6.1 Open Channel Flow Monitor SIMULATION - - Si mu l a t i o n - - - - - - - -  T e s t Ac t u a l F l o w 2 5 0 USG Exercises the 4-20mA (0-5V) output, digital display and control relays.
Page 24: Sensor Mounting Methods
OCF 6.1 Open Channel Flow Monitor SENSOR MOUNTING METHODS Page 24...
Page 25 OCF 6.1 Open Channel Flow Monitor SENSOR MOUNTING/LOCATION - Open Channel Flow Applications Each sensor is equipped with a 3/4 inch isolation coupling which MUST be used in your installation. A threaded nipple or length of conduit may be used to position the sensor at the desired height. The sensor should be hand-tightened by turning the sensor stem only.
Page 26 Stilling wells are recommended to reduce the effects of turbulence as water flows through the flume or weir. The OCF 6.1 sensor is centered over the stilling well. Sensor height must be 8" (203 mm) or more above the highest water level. The well must be kept clean of sediment and deposits on the side walls.
Page 27 OCF 6.1 Open Channel Flow Monitor ZERO POSITIONING OF SENSOR - Open Channel Flow Applications Locate the sensor at the position upstream from the throat of the flume or weir plate as recommended by the manufacturer. A technique for accurate sensor height adjustment is shown:...
Page 28 OCF 6.1 Open Channel Flow Monitor ENCLOSURE INSTALLATION Locate the enclosure within 20 ft (6 m) of the sensor (500 ft -150 m optional). The enclosure can be wall mounted with the four mounting screws (included) or panel mounted with Option PM Panel Mount kit from Greyline Instruments.
Page 29: Error/Warning Messages
OCF 6.1 Open Channel Flow Monitor ERROR/WARNING MESSAGES ECHO LOSS No valid echoes received within the setting. The OCF 6.1 will force LOE TIME the display and outputs to zero until a new echo is received. - or - Your choice of Units exceeds 9,999,999. Use...
Page 30: Field Troubleshooting
OCF 6.1 Open Channel Flow Monitor FIELD TROUBLESHOOTING SYMPTOMS CHECK Display - full scale - zero - erratic - random - drifting up - drifting down prompt - flashing ECHO LOSS Calibration Non-Linear SYMPTOMS FAULTS SOLUTIONS Unit “See’s” Wrong Target Due To:...
Page 31 OCF 6.1 Open Channel Flow Monitor - sensor cable connections reversed - through sensor cable - use properly grounded metal conduit - sensor cable extended and junction - Use metal Junction Box not insulated - through enclosure - use metal enclosure...
Page 32 OCF 6.1 Open Channel Flow Monitor - vapour - dissipate fumes, Calibration in-situ - zero not set accurately - see “Zero Positioning of Sensor” - wrong flume, or K&n selected ( - select correct flume FLOW mode) - temperature measurement inaccuracy...
Page 33 OCF 6.1 Open Channel Flow Monitor PZxx Series Sensors Troubleshooting Resistance measured (between the shield and center wire) across the coaxial cable ends by mulitmeter indicates ambient temperature. Resistance vs. Temperature Values are in Ohms TEMP °C 10000 10039 10078...
Page 34: Applications Hotline
Instruments may be returned to Greyline for service or warranty repair. Obtain an RMA Number from Greyline - Before shipping a product to the factory please contact Greyline by telephone, fax or email to obtain an RMA number (Returned Merchandise Authorization). This ensures fast service and correct billing or credit.
Page 35 Greyline will replace or repair, free of charge, any Greyline product if it has been proven to be defective within the warranty period. This warranty does not cover any expenses incurred in the removal and re-installation of the product.
Page 36: Appendix A - Options
APPENDIX A - OPTIONS EXTRA SENSOR CABLE - OPTION XC Each Greyline level instrument includes 25 ft. (7.6 m) RG62AU coaxial cable. Additional RG62AU coaxial cable and Cable Junction Box (Option JB2X) may be installed to extend cable up to 500 ft (152m) as required during installation.
Page 37 OCF 6.1 Open Channel Flow Monitor EXTENDED SENSOR CABLE INSTALLATION IN MANHOLE MANHOLE COVER JB X XC EXTENDED SENSOR CABLE UP TO 500 ft 152 m CONDUIT TO ELECTRONICS ULTRASONIC SENSOR Page 37...
Page 38 Class II, Groups E,F,G Class III The Intrinsic Safety Barrier may be ordered with the Greyline instrument and is supplied mounted in the Greyline instrument enclosure. Replacement barrier fuses (Part No. ISB- 011239) may be purchased separately. The instrument enclosure containing the ISB Intrinsic Safety Barrier must be installed in a non-hazardous location.
Page 39 OCF 6.1 Open Channel Flow Monitor GN SPEC ISB The intrinsic safety barrier assemblies installed in the OCF 6.1 limit the voltage and current supplied to the transducers to the values listed under ‘Barrier Specifications’. To safely install a Greyline transducer...
Page 40: Modbus® Communication
OCF 6.1 Open Channel Flow Monitor MODBUS® COMMUNICATION MODBUS® serial interface connections are made at the RS485 card’s terminal block if your OCF 6.1 was ordered with this card, or if one was added after installation. Card location: SENSOR CORE...
Page 41 OCF 6.1 Open Channel Flow Monitor Transceiver: 2-wire, half-duplex MODBUS Address (MAC address) range: 1-255 (Default: 001) BAUD rates: 4800, 9600, 19200, 38400, 57600, 76800 or 115200 (Default: 9600) Data Bits: Parity: None, Even, Odd (Default: Even) Stop Bits: 1, 2 (Default: 1)
Page 42 OCF 6.1 Open Channel Flow Monitor MODBUS® MEMORY MAP Register Description Register Data Over Read/ Comments Address Type Range Range Write Reset Coil Read/ Turn coil ON (1) to reset total on OCF Volume Write 6.1. Total Turn coil to OFF (0) once reset is complete.
Page 43 OCF 6.1 Open Channel Flow Monitor Register Description Register Format Type Comments Address Type 30110 Flow Rate - USG/sec Input Register Floating Point Register (2 of 2) 30111 Flow Rate - USG/hr Input Register Floating Point Register (1 of 2)
Page 44 OCF 6.1 Open Channel Flow Monitor Register Description Register Format Type Comments Address Type 30134 Flow Rate - L/day Input Register Floating Point Register (2 of 2) 30135 Flow Rate - m /sec Input Register Floating Point Register (1 of 2)
Page 45 OCF 6.1 Open Channel Flow Monitor Register Description Register Format Type Comments Address Type 30158 Flow Rate - bbl/sec Input Register Floating Point Register (2 of 2) bbl = US Oil Barrel = 42 Gallons 30159 Flow Rate - bbl/min...
Page 46 OCF 6.1 Open Channel Flow Monitor Register Description Register Format Type Comments Address Type 30181 Previous day Average Input Register Floating Point Register (1 of 2) Flow Rate - ft3/hr 30182 Previous day Average Input Register Floating Point Register (2 of 2)
Page 47 OCF 6.1 Open Channel Flow Monitor Register Description Register Format Type Comments Address Type 30205 Previous day Average Input Register Floating Point Register (1 of 2) IG = Imperial Gallons Flow Rate - IG/sec 30206 Previous day Average Input Register...
Page 48 OCF 6.1 Open Channel Flow Monitor Register Description Register Format Type Comments Address Type 30301 Volume Total - Gallons Input Register Floating Point Register (1 of 2) 30302 Volume Total - Gallons Input Register Floating Point Register (2 of 2)
Page 49 OCF 6.1 Open Channel Flow Monitor Register Description Register Format Type Comments Address Type 30325 Previous day Volume Input Register Floating Point Register (1 of 2) USMG = US Million Total - USMG Gallons 30326 Previous day Volume Input Register...
Page 50 OCF 6.1 Open Channel Flow Monitor Register Description Register Format Type Comments Address Type 30549 Sensor A Volume - Input Register Floating Point Register (1 of 2) Tank volume, not flow Gallons volume. 30550 Sensor A Volume - Input Register...
Page 51 OCF 6.1 Open Channel Flow Monitor Register Description Register Format Type Comments Address Type 30925 Logging Status Input Register Index (0-2) 0 = Stopped 1 = Active 2 = Full 30926 Logging Used - % Input Register Floating Point Register (1 of 2)
Page 52 OCF 6.1 Open Channel Flow Monitor Register Description Register Format Type Comments Address Type 30948 Flow Units Input Register Index (0 to 31) 0 = US Gallons per Minute 1 = Litres per Second 2 = Cubic Feet per Minute...
Page 53 OCF 6.1 Open Channel Flow Monitor ENCLOSURE HEATER AND THERMOSTAT - Option TH Instruments can be factory-equipped with an Enclosure Heater and Thermostat or the module can be customer-installed. The Thermostat is factory set to turn ON at 40°F (4.5°C) and OFF at 60°F (15.5°C).
Page 54 LCD display. Test operation of the OCF 6.1 by holding the sensor steadily and aiming at a flat, stable target 12 to 28" (305 to 711 mm) away from the end of the sensor. Allow a few seconds for the OCF 6.1 to lock onto the target before displaying its distance.
Page 55: Conversion Guide
OCF 6.1 Open Channel Flow Monitor CONVERSION GUIDE FROM MULTIPLY BY US GALLONS CUBIC FEET 0.1337 US GALLONS IMPERIAL GALS 0.8327 US GALLONS LITRES 3.785 US GALLONS CUBIC METERS 0.003785 LITRES/SEC 15.85 LITRES CUBIC METERS 0.001 BARRELS US GALLONS BARRELS IMPERIAL GALS 34.9726...
Page 56: Specifications
OCF 6.1 Open Channel Flow Monitor SPECIFICATIONS 7.4 / 1 88 mm " 6.46 / 1 64 mm " 5.1 2 / 1 30 mm " Accuracy: ±0.25% of Measured Range or 2 mm, whichever is greater. Repeatability and Linearity: 0.1% F.S.
Page 57 OCF 6.1 Open Channel Flow Monitor Optional Sensor PZ32T Maximum Range: 32 ft. (10 m) Deadband (blanking): Programmable, minimum 12” (305 Beam Angle: 8° at 3 DB Temperature Compensation: Automatic, continuous Operating Frequency: 42 KHz Exposed Materials: PVC and Teflon Operating Temperature: - 40°...