USER'S GUIDE
Installation & Operation
Instructions
Open Channel Flow Monitor
Model OCF 5.0
www.greyline.com
Manual Series A.1.8
Note: This page has been left blank intentionally.
OCF 5.0 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................................................................................................12
CHANNEL SETUP..........................................................................................14
RELAY PARAMETERS..................................................................................15
DATA LOGGING............................................................................................16
SPECIAL FUNCTIONS...................................................................................18
SENSOR 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 a suspension of the warranty.
Available in Adobe Acrobat pdf format
Page 3
OCF 5.0 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.
Optional Thermostat and Heater modules are available rated for 115 VAC or 230 VAC.
IMPORTANT NOTE: 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 access connections.
Note: Use of instrumentation over 40°C ambient requires special field wiring.
Note: User replaceable fuse is 2 Amp 250V (T2AL250V).
Page 4
CONNECTIONS
OCF 5.0 Open Channel Flow Monitor
Page 5
OCF 5.0 Open Channel Flow Monitor
KEYPAD SYSTEM
The OCF 5.0 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 and keys.
To store calibration values permanently (even through power interruptions), press .
Page 6
CALIBRATION MENU
OCF 5.0 Open Channel Flow Monitor
Page 7
ICONS
OCF 5.0 Open Channel Flow Monitor
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OCF 5.0 Open Channel Flow Monitor
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 5.0 will start-up with this display.
MESSAGE ICON
Press from the main display to view status of the data logger and error/warning
messages provided by the instrument. The Message Icon will appear on the main
display if error messages are being generated by 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 main display to view a formatted flow report from instruments
with a built-in data logger. Press to scroll down one day or repeatedly to scroll
to a specific date. Up to 365 days can be stored. Newest date will overwrite the
oldest. Press to return to the main display.
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OCF 5.0 Open Channel Flow Monitor
PASSWORD
The Password (a number from 0000 to 9999) prevents unauthorized access to
the Calibration menu.
From the Main display press to get 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.
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OCF 5.0 Open Channel Flow Monitor
UNITS/MODE
From Mode press the and then the or to select Level, Range, Flow,
HRT or Volume.
Range displays distance from the sensor to the target or liquid surface like a
tape measure. Range mode is useful to measure the exact distance
from the sensor to the zero level during calibration.
Level used to measure tank level in linear units, or "Head" in an open
channel for comparison with flow tables.
Volume displays tank inventory in engineering units.
HRT select Horizontal 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 selection, then to the next menu item and to enter.
Linear press and then or to select units of measurement.
Press to store the selection.
Time press and then or to select day, hr, min or sec.
Temperature press and then or to select C or F (Centigrade or
Fahrenheit).
Press or to return to the Menu Selections screen.
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OCF 5.0 Open Channel Flow Monitor
CALIBRATION
Press to Calibration and to enter. Use or to position before each
menu item and to enter. When settings are completed press to store and
return to the Calibration menu.
Min Range Distance from the sensor face to highest expected level.
Max Range Distance from sensor to Zero level.
MaxVol For Volume and HRT mode only. Enter the maximum volume of
the vertical or horizontal tank.
Damping Minimum damping allows fast response to level changes.
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 ½ inch/sec - 13 mm/sec).
LOE Time Press and or to change the number of seconds without
receiving an echo before the OCF 5.0 displays ECHO LOSS, and
Control relays change state as calibrated under Relay Parameters.
Factory default is 30 seconds and is recommended for most
applications, Minimum is 1 second and maximum is 99 seconds.
Press to return to Menu Selections.
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OCF 5.0 Open Channel Flow Monitor
CALIBRATION
- for Open Channel Flow
1. Before starting the calibration determine:
a) MAX RANGE = ____________________
(Maximum range = distance from the Sensor to Zero flow point)
b) MAX LEVEL = ____________________
(Maximum level of flow through flume or weir)
c) MIN RANGE = __________________
(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,
and use this measurement as the Max Range setting.
NOTE: The OCF 5.0 will not detect targets beyond user entered Max Range.
Page 13
CHANNEL SETUP
OCF 5.0 Open Channel Flow Monitor
Page 14
OCF 5.0 Open Channel Flow Monitor
RELAY PARAMETERS
Relay Press and or to select a relay (2 relays are standard, 4
additional are optional).
Function Press or to select Off, Temperature, Pulse or Flow.
Temperature Air temperature at the sensor location.
Press and and set the relay On and
Off for specific temperatures.
Pulse Press and set 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 return to Menu Selections.
LOE Set relay state for ‘echo loss’ event (On, Off or Hold)
Alternate Pumps can be set to alternate when in pump mode.
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OCF 5.0 Open Channel Flow Monitor
Note:
DATA LOGGING
Setup
Select Data Logging from Menu Selections.
Log Site ID
Mode
Set Date
Set Time
Interval
Log
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.
Enter a number from 00 to 99. The site ID will
become part of the downloaded file name to help
distinguish downloads from different instruments.
Press to store the setting.
Select Level, Range, Flow, HRT and Volume.
Flow (e.g. USGPM or l/sec).
Press to store the setting.
Pressorto scroll and select Month, Day and Year.
Press to store the setting.
Pressorto select the current time in Hours, Minutes
and Seconds. Press to store the setting.
Pressorto select the logging interval.
Press to store the setting.
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.
RETRIEVE LOG FILE
Plug a USB Flash Memory Drive (not supplied by Greyline) into the USB output
cable from 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. The USB flash drive may be removed.
Download file names will appear in this format:
Tag is set according to the Log Site ID entered in the instrument Data Logging
menu.
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OCF 5.0 Open Channel Flow Monitor
Download letter will be A for the first download from an instrument. B for the
second, then C etc. At the letter Z a - character will appear indicating 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.
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OCF 5.0 Open Channel Flow Monitor
SPECIAL FUNCTIONS
Language Select English, French or Spanish and press .
Analog Out Select 4-20mA or 0-5V mode for the analog output.
Backlight Select High, Medium or Low for continuous
backlight.
Select Key Hi/Lo for high backlight (for 1 minute)
after a keypress and then Lo backlight until a key is
pressed again.
Select Key High, Med 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 the
calibration menus. Setting of any password greater
than 0000 will require the password to be entered to
access the calibration menus.
Press to return to Menu Selections.
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OCF 5.0 Open Channel Flow Monitor
SIMULATION
Exercises the 4-20mA (0-5V) output, digital display and control relays.
Test Select Maximum and press to simulate maximum 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.
Page 19
SENSOR MOUNTING METHODS
OCF 5.0 Open Channel Flow Monitor
Page 20
OCF 5.0 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. DO NOT use a wrench and do not over
tighten.
IMPORTANT: Follow 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 shielded from direct sunlight.
Use the PVC “isolation coupling” supplied with the sensor and hand-tighten the sensor/coupling
assembly onto your mounting stand. Do not clamp directly to the sensor or to the isolation coupling.
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OCF 5.0 Open Channel Flow Monitor
TYPICAL SENSOR POSITIONING
FOR FLUMES AND WEIRS
Always refer to the flume or weir manufacturer’s instructions for correct measurement point upstream
from the flume or weir. Location of the sensor is critical for accurate flow measurement.
If manufacturer’s instructions are not available, the following guidelines are generally accepted.
1. PARSHALL FLUME:
Position the sensor at 2/3 Approach as
illustrated above. Sensor height must be
8" (203 mm) or more above the highest
water level.
2. PALMER BOWLUS FLUMES:
Position the sensor at ½ 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 recommended to reduce the effects of turbulence as water flows through the flume or weir. The
OCF 5.0 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.
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OCF 5.0 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:
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OCF 5.0 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.
Avoid mounting the enclosure in direct sunlight to protect the electronics from damage due to
overheating and condensate. In high humidity atmospheres, or where temperatures fall below freezing,
Option TH Enclosure Heater and Thermostat is recommended. Seal conduit entries to prevent moisture
from entering enclosure.
NEMA4X (IP66) WITH CLEAR COVER
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 enclosure does not automatically provide
grounding between conduit connections. Grounding must be provided as part of the installation. Ground
in accordance with the requirements of the National Electrical Code. System grounding is provided by
connecting grounding wires from all conduit entries to the steel mounting plate or another point which
provides continuity.
CLEANING
Cleaning is not required as a part of normal maintenance.
Page 24
ERROR/WARNING MESSAGES
OCF 5.0 Open Channel Flow Monitor
ECHO LOSS
- or -
ECHO TOO CLOSE
SENSOR OPEN
SENSOR SHORTED
No valid echoes received within the LOE TIME setting. The OCF 5.0 will hold the
display and outputs at the last reading until a new echo is received.
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
Indicates that the target is less than Min Range distance from the sensor (too close
to the sensor).
Instrument has detected sensor connection/cable Open.
Instrument has detected sensor connection/cable Shorted.
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OCF 5.0 Open Channel Flow Monitor
FIELD TROUBLESHOOTING
SYMPTOMS CHECK
Display - full scale A
- zero B
- erratic - random C
- drifting up D
- drifting down E
ECHO LOSS prompt - flashing F
Calibration Non-Linear H
SYMPTOMS FAULTS SOLUTIONS
Unit “See’s” Wrong Target Due To:
A - sensor cover not removed - remove protective cover after installation
A,C,D,F - sensor not aimed correctly
A,D,F - dust/dirt buildup on sensor - clean carefully (do not scratch sensor face)
A,D,F - condensation on sensor - lower Sensor
- insulate sensor mounting location
- increase Min Range (CALIBRATION menu) by
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
C,E - very turbulent flow in open channel - increase Damping (CALIBRATION menu)
C,E - very turbulent level in tank - increase Damping (CALIBRATION menu)
Unit Picks-Up Interference Due To:
- lower Sensor below stand pipe intrusion
- install stilling well on flume or weir
- change tank fill method
A,C - noise from high pressure fill - install submerged fill pipe
A,D - sensor coupling over tightened - hand tighten only (like a light bulb)
A,D - sensor coupling not used - use coupling supplied
C - other ultrasonic unit in close proximity - synchronize
Electrical interference:
C - sensor cable connections reversed
C - through sensor cable - use properly grounded metal conduit
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OCF 5.0 Open Channel Flow Monitor
C - sensor cable extended and junction not
- Use metal Junction Box
insulated
C - through enclosure - use metal enclosure
C - through 4-20mA output cable - use shielded twisted pair (shielded to AC ground)
- use grounded metal conduit
C - wiring or installation close to variable
speed drive or inverter
- follow V.S.D. manufacturer’s instructions for Drive
grounding, wiring and shielding
Unit Receives No Return Echo Due To:
C,F,E - foam on liquid surface - use stilling well (open channel flow)
B - target beyond Max Range - recalibrate
F - sensor damaged - remove sensor from mounting and aim at 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 type of wire - use RG62A/U coaxial only
C - close to high voltage/large motors
C - AC chassis/ground missing on instrument
power connections
Non-Linearity Due To:
H - vapour - dissipate fumes, Calibration in-situ
H - zero not set accurately - see “Zero Positioning of Sensor”
H - wrong flume, or K&n selected (FLOW
- select correct flume
mode)
- temperature measurement inaccuracy - install sensor sunscreen
- mount sensor closer to flow
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OCF 5.0 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
Page 28
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.
OCF 5.0 Open Channel Flow Monitor
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OCF 5.0 Open Channel Flow Monitor
APPLICATIONS HOTLINE
For applications assistance, advice or information on any Greyline Instrument contact your Sales Representative,
write to Greyline or phone the Applications Hotline below:
United States: Tel: 315-788-9500 Fax: 315-764-0419
Canada: Tel: 613-938-8956 Fax: 613-938-4857
Toll Free: 888-473-9546
Email: info@greyline.com
Web Site: www.greyline.com
Greyline Instruments Inc.
Canada USA:
16456 Sixsmith Drive 11451 Belcher Road South
Long Sault, Ont. K0C 1P0 Largo, FL 33773
PRODUCT RETURN PROCEDURE
Instruments may be returned to Greyline for service or warranty repair.
1 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.
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/Product -
Important: unclean products will not be serviced and will be returned to the sender at their expense.
1. Rinse sensor and cable to remove debris.
2. If the sensor has been exposed to sewage, immerse both sensor and cable in a solution of 1 part
household bleach (Javex, Clorox etc.) to 20 parts water for 5 minutes. Important: do not immerse
open end of sensor cable.
3. Dry with paper towels and pack sensor and cable in a sealed plastic bag.
4. Wipe the outside of the enclosure to remove dirt or deposits.
5. Return to Greyline for service.
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OCF 5.0 Open Channel Flow Monitor
LIMITED WARRANTY
_____________________________________
Greyline Instruments warrants, to the original purchaser, its
products to be free from defects in material and workmanship for a
period of one year from date of invoice. 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.
If a product manufactured by Greyline should prove defective
within the first year, return it freight prepaid to Greyline
Instruments along 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 duration of this warranty.
This is the complete warranty by Greyline and no other warranty is
valid against Greyline. Some states do not allow limitations on how
long an implied warranty lasts or limitation of incidental or
consequential damages, so the above limitations or exclusions may
not apply to you.
This warranty gives you specific legal rights, and you may also
have other rights which vary from state to state.
Greyline Instruments Inc.
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OCF 5.0 Open Channel Flow Monitor
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. No adjustment is required 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 Junction Box with terminal strips is available from Greyline
Instruments. Includes compression fittings for watertight coaxial cable entries.
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OCF 5.0 Open Channel Flow Monitor
EXTENDED SENSOR CABLE INSTALLATION IN MANHOLE
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OCF 5.0 Open Channel Flow Monitor
SENSOR INTRINSIC SAFETY
(OPTION ISB)
When connected through Intrinsic Safety Barriers, Greyline PZ** Series sensors are certified for
installation in a hazardous 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.
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OCF 5.0 Open Channel Flow Monitor
Page 35
OCF 5.0 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).
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.
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OCF 5.0 Open Channel Flow Monitor
POWER INPUT OPTION
9-32VDC
OCF 5.0 Level & Flow Monitors may be ordered factory-configured for 9-32VDC power input.
QUICK BENCH TEST:
Connect Sensor as shown below, then Power. When properly connected figures will show on the large
LCD display. 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 must be
connected to the nearest Ground pole. A 1 amp fuse in line is recommended.
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OCF 5.0 Open Channel Flow Monitor
CONVERSION GUIDE
FROM TO 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 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
FOOT² METER² 0.0929
VOLUME CALCULATION FOR ROUND TANKS: 3.142 x R² x H
R = TANK RADIUS (½ TANK DIAMETER)
H = TANK HEIGHT
Page 38
SPECIFICATIONS
Accuracy: ±0.25% of Range or 2
mm, whichever is
greater Repeatability
and Linearity: 0.1% F.S.
Displays: White, backlit matrix -
displays flow rate,
totalizer, relay states,
operating mode and
calibration menu
Calibration: built-in 5-key calibrator
with English, French or
Spanish language
Power Input: 100-240VAC, 50/60Hz,
30 Watts or
Optional 9-32VDC, rated
9W (typical 4.1W with
standard features)
Output: Isolated 4-20mA (1000 ohm load max.)
Control Relays: Qty 2, rated 5 amp 240VAC SPDT, programmable flow alarm and/or
proportional pulse
Enclosure: watertight, dust tight NEMA4X (IP 66) polycarbonate with a clear
shatter-proof face
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: 10lbs (4.5 kg)
OCF 5.0 Open Channel Flow Monitor
Standard Sensor PZ15
Maximum Range: 15 ft (4.57 m)
Minimum Range (Deadband): 8" (203.2 mm)
Operating Frequency: 92 KHz
Beam Angle: 8°
Operating Temperature: -40° to 150° (-40° to 65°C)
Temperature Compensation: Automatic, continuous
Max. Operating Pressure: 20 psi (1.35 bar)
Sensor Face: PVC
Sensor Body: PVC
Cable Length: 25 ft. (7.6 m) continuous
Max. Cable Length: 500 ft. (152 m) RG62AU
Hazardous Rating: CSA rated Intrinsically Safe
Mounting: ¾" NPT
RG62AU coaxial. Optional 50
ft. (15 m) continuous
coaxial (splice)
Class I, Groups C,D, Class II,
Groups E,F,G with Optional
Intrinsic Safety Barrier.
Page 39
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° to 150°F (-40° to 65°C)
Operating Pressure: 20 psi (1.35 Bar) maximum
Mounting: ¾” NPT (PVC isolation coupling
Sensor Cable: RG62AU coaxial, 25 ft. (7.6 m)
Hazardous Rating: with optional Intrinsic Safety Barrier:
OCF 5.0 Open Channel Flow Monitor
mm)
supplied)
standard
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
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 Pressure: 20 psi (1.35 Bar) maximum
Mounting: ¾” NPT (Teflon isolation coupling
Sensor Cable: RG62AU coaxial, 25 ft. (7.6 m)
Hazardous Rating: with optional Intrinsic Safety Barrier:
mm)
supplied)
standard
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.
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