Greyline Instruments OCF 5.0, SLT 5.0 User Manual
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
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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).
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CONNECTIONS
OCF 5.0 Open Channel Flow Monitor
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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 .
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CALIBRATION MENU
OCF 5.0 Open Channel Flow Monitor
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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.
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