RATE OF FLOW INDICATOR (RoF)
RATE OF FLOW
INDICATOR (RoF)
Features
For Measurement in
Open Channels
l
Easy Calibration &
Alarm Setting
l
Maintenance Free
(No Moving Parts)
l
Built-In Diagnostics
l
Remote Monitoring
l
Typical Applications
Description
Inlet/Outlet of Filter Beds
l Effluent Treatment Plant
l Water Treatment Plant
l Irrigation Channels
Nivo Control’s Rate of Flow Indicator (RoF) is a microprocessor-based instrument that
measures the flow rate of liquids in an open channel.
The complete measuring system consists of:
The Probe
: The Probe is the active element of the system that goes in the stilling
pipe / channel from top and is in contact with the fluid whose flow rate
is to be indicated.
RoF Indicator : The indicator receives voltage signal corresponding to the level/height of fluid in the channel/pipe and converts it into digital data. The RoF is calculated using the formula:
n
Q = K * L
Here, Q is Rate of Flow in CuM / Hr
L is Level in Meters
K & n are constants; depending on the hydraulic measuring device.
The flow rate is displayed on the LED display. The constants, display selection & alarm can be entered through the keyboard.
Technical Specifications
Housing
: Cast Aluminium (IP-65)
Mounting
: Wall Mounting
Data Backup
: On EEPROM (Non-volatile memory)
Programmable at site : Password, Password change, System constant, entry (K, n), Alarm (High, Low, Hysteresis), Calibration (Level 1 & Level 2), Display mode (Level in %, Level in mm, Flowrate in CuM/Hr).
Power Supply
: 230/110 V AC, 50 Hz
Functions
: Keyboard error, EEPROM error, ADC error,
Invalid password error
Alarm Output
: A relay C/O rated 6 Amps 230 V for non-inductive load, adjustable over the whole range
Alarm Hysteresis
: 0% to 25%
Accuracy
: ±2% of Probe Length
Option
: Rate of Flow (RoF) can be supplied with Loss of Head (LoH) in a common Sheet Metal Housing
We reserve the right to modify the technical data without prior notice.
Manufactured by
Nivo Controls Private Limited
104-115, Electronic Complex, Indore 452 010, India.
Phone : +91 731 4081305 E-mail : info@nivocontrols.com Fax :+91 731 2550075
URL:www.nivocontrols.com
Implement
l
16/MKT/01/V2
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