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Page 33

OCF 5.0 Open Channel Flow Monitor

EXTENDED SENSOR CABLE INSTALLATION IN MANHOLE

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Содержание OCF 5.0

Страница 1: ...www greyline com USER S GUIDE Installation Operation Instructions Open Channel Flow Monitor Model OCF 5 0 Manual Series A 1 8 ...

Страница 2: ...Note This page has been left blank intentionally ...

Страница 3: ...MOUNTING METHODS 20 ERROR WARNING MESSAGES 25 FIELD TROUBLESHOOTING 26 APPLICATIONS HOTLINE 30 PRODUCT RETURN PROCEDURE 30 APPENDIX A OPTIONS 32 CONVERSION GUIDE 38 SPECIFICATIONS 39 IMPORTANT NOTE This instrument is manufactured and calibrated to meet product specifications Please read this manual carefully before installation and operation Any unauthorized repairs or modifications may result in ...

Страница 4: ...To comply with CSA UL electrical safety standards AC power input and relay connection wires must have conduit entry to the instrument enclosure Installation requires a switch overcurrent fuse or circuit breaker in the building in close proximity to the equipment that is marked as the disconnect switch Risk of electric shock Loosen cover screw to access connections Only qualified personnel should a...

Страница 5: ...Page 5 OCF 5 0 Open Channel Flow Monitor CONNECTIONS ...

Страница 6: ... 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 and keys To store calibration values permanently even through power interruptions press ...

Страница 7: ...Page 7 OCF 5 0 Open Channel Flow Monitor CALIBRATION MENU ...

Страница 8: ...Page 8 OCF 5 0 Open Channel Flow Monitor ICONS ...

Страница 9: ...y the instrument Refer to the manual section Error Warning Messages for a description Press to return to the main display STATUS Press from the main display to view instrument status Range will be displayed in linear units Tot Displays the current totalizer reading EC Displays echo confidence Relays Energized relays will display as a white character on a black background 24 HR LOG Press from the m...

Страница 10: ...t to Password Factory default password is 0000 and if it has not been changed press the to proceed to the Menu Selections screen If a password is required press to place the cursor under the first digit and or to set the number then to the second digit etc Press or to proceed to the Menu Selections screen A new password can be stored by going to Special Functions New Password ...

Страница 11: ...ontal Round Tank mode to calculate and display volume units in a horizontal round tank Flow calculates open channel flow through a flume or weir Volume HRT or Flow gives the additional choice of volumetric units ft3 cubic feet USG US gallons USMG US million gallons FLOW only IG Imperial gallons IMG Imperial million gallons FLOW only m3 cubic meters L liters bbl U S oil barrel Press to store the se...

Страница 12: ... Increasing damping slows the OCF 5 0 s response to level changes and is ideal to smooth the display and outputs in turbulent conditions Damping value is shown in percent 0 99 Some experimentation may be required to select the optimum damping value A value of 1 is recommended for most applications and for fast level changes up to inch sec 13 mm sec LOE Time Press and or to change the number of sec...

Страница 13: ...Distance from sensor to Max Level Minimum range MAX RANGE MAX LEVEL must be at least 8 20 3 cm depending on sensor model 2 Check the maximum range with the sensor installed by a When liquid is at zero level press to view the Range reading in the Status menu Use this range measured by the OCF 5 0 as the Max Range setting or b Carefully measure distance from sensor to zero level with a tape measure ...

Страница 14: ...Page 14 OCF 5 0 Open Channel Flow Monitor CHANNEL SETUP ...

Страница 15: ...et digits to the flow volume increment required between relay pulses Use this feature for remote samplers chlorinators or totalizers Minimum time between pulses is 2 25 seconds and pulse duration is 350 milliseconds Flow Press to Mode and to select Pump Low Alarm or Hi Alarm Note Function setting Flow will change according to selections made under Units Mode eg Level Range Volume or HRT Press to r...

Страница 16: ...to select the logging interval Press to store the setting Log Stop Start or Delete the log file Press or to Delete and to delete the log file Press or to Start and to start the logger Note You MUST delete old log and start a new log AFTER having set changes to Log Site ID Mode and or Interval for those changes to be applied to the log file RETRIEVE LOG FILE Plug a USB Flash Memory Drive not suppli...

Страница 17: ...that the maximum number of downloads for that instrument are on the USB flash drive Older files can be erased or moved from the flash memory drive or a new memory drive can be used OPENING LOG FILES Install Greyline Logger on your PC or laptop Refer to the Help menu in the program for detailed instructions Select File Open Instrument Log log to open the log file from your USB flash drive ...

Страница 18: ... or Low for backlight after a keypress and then backlight off until a key is pressed again Reset Totalizer Press and select Yes to erase and restart the totalizer at zero Restore Defaults Select Yes and press to erase all user settings and return the instrument to factory default settings New Password Select any number from 0000 to 9999 and press Default setting of 0000 will allow direct access to...

Страница 19: ...imum Flow Range or Level and to output 20mA 5V to the analog channel Select Minimum and press to simulate minimum Flow Range or Level and to output 4mA 0V to the analog channel To simulate an intermediate Flow Range or Level set Test to Actual and then enter a value for the Flow Range or Level The analog output and control relays will respond to the simulated value ...

Страница 20: ...Page 20 OCF 5 0 Open Channel Flow Monitor SENSOR MOUNTING METHODS ...

Страница 21: ...llow the flume manufacturer s directions for sensor location The sensor should be centered above the flume approach section and mounted 8 203 mm minimum above the maximum liquid level depending on sensor model The sensor should be protected from physical damage and the sensor cable should be routed in a separate metal conduit Because the sensor is equipped with a temperature sensor it should be sh...

Страница 22: ... or more above the highest water level 2 PALMER BOWLUS FLUMES Position the sensor at the flume Diameter upstream from the throat of the flume Sensor height must be 8 203 mm or more above the highest water level 3 V NOTCH WEIRS Position the sensor at 3 x maximum Head upstream from the weir plate Sensor height must be 8 20 3 cm or more above the highest water level STILLING WELLS Stilling wells are ...

Страница 23: ...or 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 ...

Страница 24: ...VER 1 Open hinged enclosure cover 2 Insert 12 screws supplied through the four enclosure mounting holes to secure the enclosure to the wall or mounting stand Additional conduit holes can be cut in the bottom of the enclosure when required Use a hole saw or Greenlee type hole cutter to cut the required holes DO NOT make conduit wiring entries into the top of the enclosure Note This non metallic enc...

Страница 25: ...ading until a new echo is received or Your choice of Units exceeds 9 999 999 Use USMG d IMG d or m3 d so that Units will be 9 999 999 or less ECHO TOO CLOSE Indicates that the target is less than Min Range distance from the sensor too close to the sensor SENSOR OPEN Instrument has detected sensor connection cable Open SENSOR SHORTED Instrument has detected sensor connection cable Shorted ...

Страница 26: ...1 3 2 5 7 5 cm wipe sensor face and body with Rain X A D sensor mounting stand pipe too long too narrow dirty gasket intruding lower Sensor below stand pipe intrusion C E very turbulent flow in open channel increase Damping CALIBRATION menu install stilling well on flume or weir C E very turbulent level in tank increase Damping CALIBRATION menu change tank fill method Unit Picks Up Interference Du...

Страница 27: ...t a flat stable target to test F sensor misalignment check with a level Wiring Problems Due To Sensor Cable A C F open circuit check connections continuity 8850 to 12700 ohms max 30 C to 70 C B F short circuit check connections continuity 8850 ohms min F too long max 500 ft 150 m C bundled run in conduit with power cable C sensor ground shorted to conduit enclosure insulate A extended with wrong t...

Страница 28: ... 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 ...

Страница 29: ...n Channel Flow Monitor FUSE REPLACEMENT 1 Turn OFF power 2 Loosen cover screw and open 3 Remove power module 4 Locate fuse on Power Board 5 Replace fuse with 2 AMP 250V 5 x 20mm fuse 6 Reinstall power module into chassis ...

Страница 30: ...r email to obtain an RMA number Returned Merchandise Authorization This ensures fast service and correct billing or credit When you contact Greyline please have the following information available 1 Model number Software Version 2 Serial number 3 Date of Purchase 4 Reason for return description of fault or modification required 5 Your name company name address and phone number 2 Clean the Sensor P...

Страница 31: ...ong with a copy of your invoice This warranty does not cover damages due to improper installation or handling acts of nature or unauthorized service Modifications to or tampering with any part shall void this warranty This warranty does not cover any equipment used in connection with the product or consequential damages due to a defect in the product All implied warranties are limited to the durat...

Страница 32: ...equired when the sensor cable is extended or shortened Use only RG62AU or RG62U coaxial cable which is available from Greyline Instruments or your local distributor Nominal impedance of RG62AU cable is 93 ohms Extended sensor cable maybe installed in metal or plastic conduit Recommended installation with a junction box is illustrated below JUNCTION BOX OPTION JB2X NEMA4X IP66 polycarbonate Junctio...

Страница 33: ...Page 33 OCF 5 0 Open Channel Flow Monitor EXTENDED SENSOR CABLE INSTALLATION IN MANHOLE ...

Страница 34: ...ardous location rated Class I Groups C D 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 ...

Страница 35: ...Page 35 OCF 5 0 Open Channel Flow Monitor ...

Страница 36: ...e 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 Power consumption is 15 Watts ENCLOSURE SUNSCREEN Option SCR Do not mount instrument electronics in direct sunlight Overheating will reduce the life of electronic components and condensate may form during the heat cool cycles and cause electrical shorts ...

Страница 37: ... Test operation of the OCF 5 0 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 5 0 to lock onto the target before displaying its distance The OCF 5 0 will now display Range in ft or cm factory calibration CONNECTIONS POWER INPUT Connect 9 32VDC 0 5 Amps to the and terminals The Power Input GND ...

Страница 38: ...S 3 785 US GALLONS CUBIC METERS 0 003785 LITRES SEC GPM 15 85 LITRES CUBIC METERS 0 001 BARRELS US GALLONS 42 BARRELS IMPERIAL GALS 34 9726 BARRELS LITRES 158 9886 INCHES MM 25 4 DEGREES F DEGREES C F 32 x 0 556 POUNDS KILOGRAMS 0 453 PSI BAR 0 0676 FOOT METER 0 0929 VOLUME CALCULATION FOR ROUND TANKS 3 142 x R x H R TANK RADIUS TANK DIAMETER H TANK HEIGHT ...

Страница 39: ...ace Environmental Conditions Relative humidity up to 80 23 to 60 C ambient temperature maximum 5000 m altitude pollution degree 4 Installation Category II Sensitivity adjustable Damping adjustable Electrical Surge Protection Sensor 4 20mA output and AC power input Approximate Shipping Weight 10 lbs 4 5 kg Standard Sensor PZ15 Maximum Range 15 ft 4 57 m Minimum Range Deadband 8 203 2 mm Operating F...

Страница 40: ...Intrinsic Safety Barrier CSA Class I II III Div I II Groups C D E F G Note Max Range reduced to 25 ft 7 6 m with ISB option Optional Sensor PZ32TE Maximum Range 32 ft 10 m Deadband blanking Programmable minimum 12 305 mm Beam Angle 8 at 3 DB Temperature Compensation Automatic continuous Operating Frequency 42 KHz Exposed Materials Teflon Operating Temperature 40 to 170 F 40 to 76 C Operating Press...

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