I
OCF 6.1
OPEN CHANNEL FLOW & TANK LEVEL METER
Greyline
Precision Flow Measurement
An ON
CON Brand
THE RIGHT METER FOR
Flow Measurement with a
Flume or Weir:
• Inuent
• Euent
• Sewers
• Irrigation
• Environmental
Tank Level Measurement:
• Water
• Wastewater
• Chemicals
Features
Safe, Non-Contact Measurement
•
• Simple 5-key Conguration
• 4-20mA/0-5V Output
• 26-Million Point Data Logger
• On-Screen Flow Reports
• Password Protected
• Modbus® RTU Optional
Easy to Install and Calibrate. Simple, Accurate
and Reliable.
Non-Contacting Sensor
The OCF 6.1 uses a non-contacting ultrasonic sensor mounted
over a ume or weir to measure ow, or inside/above a tank to
measure level. It is accurate, reliable, and veriable. The separate,
watertight electronics/display enclosure can be mounted within
500 ft (150 m) of the sensor. The OCF 6.1 continuously displays,
totalizes, transmits, and data logs open channel ow or level.
Keypad Operating System
Use the built-in keypad for fast, easy conguration with menu
selection of ume or weir and measurement units (e.g. gallons,
liters, etc.) Conguration settings and data logs are password
protected and retained during power interruptions. The OCF
6.1 will display on-screen ow or level reports with daily total,
minimum, maximum, and average ow/level and will transfer
data logs to a USB ash drive. PC software for easy report
generation is included.
888-473-9546 greyline.com
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OCF 6.1
OPEN CHANNEL FLOW & TANK LEVEL METER
Greyline
Precision Flow Measurement
Built-in Data Logger Creates Flow Reports. Save time and labor — ow
information is stored automatically.
26-Million Point Data Logger
The OCF 6.1 ores time and date-amped ow values at programmable intervals of 10
seconds to 60 minutes. Daily reports are automatically created and can be viewed right
on the inrument’s LCD display including total, minimum, maximum, and average ow
rate or levels. Daily reports can also be downloaded easily to a USB drive in .csv format.
Easy Data Logger Downloads
You don’t need a laptop to retrieve log les! Plug any USB Flash Drive into the OCF 6.1
USB output to download data log les automatically. Downloaded les are sequentially
named by the meter, so log les from the same or multiple inruments can be ored
on one ash drive.
Greyline Logger Software for Windows
Greyline Logger is included with each OCF 6.1. This powerful software
displays data in both graph and table formats. You can view ow and
level data onscreen, generate reports, and save les to disk . Graphs can
be exported as images and data tables can be exported as delimited text
les, or directly to Microsoft Excel®.
• Display, analyze, and export log les in graph and table formats
• Generate reports including totalizer, minimum, maximum, and
average ow rates and level
• Convert measurement units
• One-click export to Microsoft Excel
®
®
Non-Contacting Ultrasonic Sensor
Each OCF 6.1 includes either a non-contacting PZ15 sensor designed for the special
requirements of open channel ow measurement, or a PZ32T sensor designed for the special
requirements of tank level measurement. The ultrasonic sensor beams are narrow enough to
work on very small umes, and powerful enough for really large applications. The OCF 6.1
automatically tunes to extended cable lengths up to 500 ft (150 m) lengths.
OCF 6.1 Outputs Included
Connect the OCF 6.1’s isolated 4-20 mA output to external displays, chart recorders, or
controllers and use the built-in relays for ow/level alarms and ow proportionate pulse to
samplers, chlorinators or external totalizers.
Retains Memory during Power Interruptions
Date, time, calibration data, and user settings are ored and retained in back-up battery protected memory. Data log les
are in ored Secure Digital (SD) non-volatile memory.
Security
Access to the OCF 6.1 calibration menu and settings are password protected when enabled.
888-473-9546
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108 mm
PZ15 SENSOR
25 ft / 7.6 m RG62AU
(50 ft / 15 m or 100 ft
Isolation Coupling
PZ32T SENSOR
OCF 6.1
OPEN CHANNEL FLOW & TANK LEVEL METER
Greyline
Precision Flow Measurement
Technical Specications
GENERAL
Electronics Enclosure: Watertight and dust tight NEMA4X (IP 66) polycarbonate with clear, shatterproof cover
Accuracy: ±0.25% of measured range or 0.08” (2 mm) whichever is greater, Repeatability and Linearity: ±0.1%
Display: White, backlit matrix - displays ow rate, totalizer, relay status, operating mode, and calibration menu
Programming: built-in 5-key congurator with English, French or Spanish language selection
Power Input: 100-240 VAC 50-60 Hz (see Options), 10 VA max depending on options
Output: Isolated 4-20 mA/0-5 V, 1000 ohm load maximum, programmable oset
Control Relays:
Electrical Surge
Protection:
Data Logger: Built-in 26-million point data logger with USB output and Windows
Operating Temperature
(Electronics):
Approximate Shipping
Weight:
Approvals CE, cCSAus
2 Relays, form ‘C’ dry contacts rated 5 amp SPDT; programmable level alarm, pump control, pump alternation, failsafe/
echo-loss, air temperature alarm
Sensor, 4-20 mA and AC power input
®
software.
-5° to 140°F (-20° to 60°C)
10 lbs (4.5 kg)
SENSOR
Maximum Range:
Deadband (Blanking): Programmable, Minimum 8 in (203.2 mm)
Beam Angle: 8°
Operating Frequency: PZ15: 92 kHz; PZ32T: 42 kHz
Exposed Materials: PZ15: PVC; PZ32T: PVC and Teon
Operating Temperature:
Submersion Rating:
Sensor Cable:
15 ft (4.57 m) with standard PZ15 sensor
32 ft (10 m) with standard PZ32T sensor
-40° to 150°F (-40° to 65°C) with automatic temperature
compensation
Protected for accidental submersion to 10 ft (3 m)
maximum
RG62AU coaxial, 25 ft (7.6 m) standard length (See
Options)
POPULAR OPTIONS
Industrial Automation
Protocols:
Sensor Cable:
Intrinsic Safety Barriers:
Power Input: 9-32 VDC, 10 Watts max
Control Relays: 4 additional (6 total), rated 5 amp SPDT
Enclosure Heater:
Sunscreens:
Sensor Mounting Stand:
Modbus RTU via RS-485
50 ft (15 m) continuous or 100 ft (30 m) continuous
RG62AU coaxial from Sensor, or
splice up to 500 ft (150 m) with Junction Box
For Sensor mounting in Class I,II,III, Div. I,II, Groups
C,D,E,F,G hazardous locations
Thermostatically controlled - recommended for
temperatures below 32°F (0°C)
Sensor sunscreen and enclosure sunscreen for outdoor
installations
Adjustable, includes galvanized steel pipe, anges,
ttings and hardware
7.4” / 188 mm
6.46” / 164 mm 5.12” / 130 mm
OCF 6.1
PSL5.0
Open Channel
Pump Station
Flow Monitor
Level Controller
Conduit Entry Location
25 ft / 7.6 m RG62AU
Coaxial Cable
(50 ft / 15 m or 100 ft /
30 m Optional)
~4.25”
Overall
3.125”
79.4 mm
2.1” / 53 mm
3/4” NPT
Isolation
Coupling
(Supplied)
3/4” NPT
1.125”
28.6 mm
10” / 254 mm
10.94” / 278 mm
Coaxial Cable
30 m Optional)
¾" NPT
3.875”
98.4 mm
~5”
127 mm
Overall
Side View
/
1.75”
44.5 mm
(Supplied)
¾" NPT
greyline.com
OCF 6.1
An ON
I
CON Brand
OPEN CHANNEL FLOW & TANK LEVEL METER
Programmable for any Flume or Weir
The OCF 6.1 includes a built-in 5-button keypad for fa, easy calibration. Select
your choice of engineering units (gallons, liters, cubic meters, etc.) and choose
your ume or weir type from the menu. The owmeter also supports entry of ow
formulae for non-andard umes and weirs. ‘Find K&n’ software (included) can
be used to calculate non-andard calibration conants for entry into the OCF 6.1
calibration menu.
Built-in control relays can be programmed for ow alarms or a ow proportionate
pulse for remote totalizers, samplers, or chlorinators. The isolated 4-20 mA (or
0-5 V) output can be connected to chart recorders, remote displays and
controllers.
Select LEVEL mode for Tank Inventory & Level Control
Set-up using the built-in keypad is fa and easy. Scroll through the menu
prompts to congure the OCF 6.1 to display level in your choice of measurement
units (ft, gallons, liters, inches, meters, mm, percent etc.) for vertical and
horizontal round tanks. Connect external devices through the OCF 6.1’s isolated
4-20 mA output or control relays..
Greyline
Precision Flow Measurement
Smart Operating System
• Works with any Flume or Weir
• Built-in Totalizer
• Password Protected
The OCF 6.1 tracks ow continuously through a ume or weir. False echoes from
turbulence, splashing rain, or snowfall are automatically rejected. Temperature
compensation is automatic for high accuracy. Flow rate and totalizer are shown
on the large backlit LCD display.
How to Order
Contact a Greyline sales representative in your area or call one of our sales engineers. Describe your requirements and
receive our prompt quotation.
Applications Support
Take advantage of Greyline’s applications experience. Phone toll free 1-888-473-9546 for advice or information on
applications, inallation or service for Greyline products.
No Risk Appraisal
The Greyline OCF 6.1 Level & Flow Monitor mu meet your requirements. Discuss your application with a Greyline
representative to arrange a 30-day trial.
The Greyline Guarantee
Quality of Materials and Workmanship - Each inrument manufactured by Greyline is warranted again defects in
materials and workmanship for a period of one year from date of purchase. Refer to our limited warranty included with
each product.
11451 Belcher Road South • Largo, FL 33773 • USA
(P) 315-788-9500 / 888-473-9546 • (F) 315-764-0419 • www.greyline.com
16456 Sixsmith Dr. • Long Sault, Ont. K0C 1P0 • Canada
(P) 613-938-8956 / 855-300-9151 • (F) 613-938-4857 • www.greyline.com Rev 0.1
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