Greyline Instruments OCF 5.0 User manual

www.greyline.com
USER'S GUIDE
Installation & Operation
Instructions
Open Channel Flow Monitor
Model OCF 5.0
Manual Series A.1.8

Note: This page has been left blank intentionally.

Page 3
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 4
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 5
OCF 5.0 Open Channel Flow Monitor
CONNECTIONS

Page 6
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 7
OCF 5.0 Open Channel Flow Monitor
CALIBRATION MENU

Page 8
OCF 5.0 Open Channel Flow Monitor
ICONS

Page 9
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.

Page 10
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.

Page 11
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 Cor F(Centigrade or
Fahrenheit).
Press or to return to the Menu Selections screen.

Page 12
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.

Page 13
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 14
OCF 5.0 Open Channel Flow Monitor
CHANNEL SETUP

Page 15
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.

Page 16
OCF 5.0 Open Channel Flow Monitor
DATA LOGGING
Setup
Select Data Logging from Menu Selections.
Log Site ID 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.
Mode Select Level,Range,Flow,HRT and Volume.
Flow (e.g. USGPM or l/sec).
Press to store the setting.
Set Date Press

or

to scroll and select Month, Day and Year.
Press to store the setting.
Set Time Press

or

to select the current time in Hours, Minutes
and Seconds. Press to store the setting.
Interval Press

or

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 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.

Page 17
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.

Page 18
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.

Page 19
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 20
OCF 5.0 Open Channel Flow Monitor
SENSOR MOUNTING METHODS