Display, sensors, instruments ampifier for flow meters
Display, sensors, instruments ampifier for flow meters
Display, sensors, instruments ampifier for flow meters
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Primary Flowpoints Ltd
Charles Street
Walsall
WS2 9LZ
Contact us now to discuss your instrumentation needs
Contact us now to discuss your instrumentation needs
Tel 01922 650009
Tel +44 1922 650009
Fax 01922 640326
sales@flowpoints.co.uk


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RT7 RATE TOTALISER    Click here for RT7 Rate Total pdf datasheet

The RT7 takes the pulsed output from any flowmeter and displays the flow rate and total of your process liquid.

RT7 Rate TotaliserEasy to use and to set up
Large easy to read displays
Preset to your requirements
Improves flowmeter performance
High and low alarms
Monitor your process
Robust design
Splash proof keypad

 

Application
The RT7 gives you a display of the flow rate and total flow of liquids in your application. You can use it for monitoring, controlling, dispensing, blending or filling of any liquid.

Operation
The RT7 takes a pulse input from your flowmeter and simultaneously displays the flowrate and total. It also displays a non resettable accumulated total at the touch of a button. High and low flow rate alarms can be used as part of a safety system to protect your plant. There is a scaled pulse output and an analogue 4-20mA output for transmission to other instruments or control equipment.

Installation and Setup
The setup is easy using the keypad and a 'beep' is sounded with all keystrokes. The RT7 can be supplied preconfigured for your application.
Operator access to the setup menu can be inhibited. The displays can be set for any units e.g. litres or gallons.

Features

Alarms: Two flow rate alarms are available. The low alarm relay will energise when your flow rate falls below a preset value. The high alarm relay will energise when your flow rate rises above a preset value.
The relays can be used for audible or visual alarms or to safely shutdown systems to protect equipment. The LED’s on the front panel will indicate when there is a high or low alarm condition.
Analogue output:
An optional 4-20mA or 0-10V output is available for transmission to other instruments or control equipment. It is scaleable to your requirements and provides an accurate and fast response to changes in flow rate.
Linearisation: The accuracy of any flowmeter can be improved by programming the calibration errors of the flowmeter into the RT7.
Damping: Decreases the response time to steady the display of the flow rate. The level of damping can be adjusted depending on how erratic the readings are due to liquid turbulence, pump pulsation or fast valve actuation.

Construction
The RT7 has a tough aluminium case in standard 1/4 DIN format for mounting in a panel. The front bezel and keypad has a splashproof seal that is resistant to most chemicals.

Specification

Construction Panel mounting instrument
Protection: IP65 - bezel / face IP21 - rear case
Dimensions: H 96mm X W 96mm X D 135mm
Panel Cut-out: 92mm X 92mm
Power input: Mains: Factory set 110 or 230 V AC 45-65 Hz
DC Supply: 12 - 24 V DC
Power output: 8 - 24 V DC 50 mA
Display: 6 digit 14mm high LED and 6 digit 10mm high LED
Temperature Range: 0 - 45 oC
Connections: 2 rows of through panel terminals

 Input signals:

1. Pick-off Coil: Sine wave min: 7mV all frequencies
Sine wave max: 35V high frequency 15V low frequency 
2. Preamplifier: Switch level: Low level < 8mA, high level >12mA 
Input current max: 50mA 
3. Switch: Low frequency: dc to 400Hz
High frequency: dc to 5kHz 
4. Pulse:  Switch threshold selectable 2.5V or 1.4V 
5. Proximity switch: Namur DIN 19234 Switch threshold: 2.2V
Low level < 1mA, high level > 3mA 
Sensor power supply: 8.2V dc 50mA 

 Outputs:

Scaled pulse:  Open collector switching transistor 
Pulse duration: 50 msec 
Flow Alarm Relays: Control Relay: 2 SPDT relays 
Switching voltage: 250 V AC 30 V DC Max current 8 A 
Rate Format: Range: 0.0001 to 999999 
Linearity points: Up to 8 factors Up to +/- 9.99% 
Total Format: Total can be preset to display 1, 0.1 or 0.01 resolution 
3mm LED indication:  Relay 1: When the flow rate drops below the low flow alarm level relay 1 will be energised and the red relay 1 LED come on. 
Relay 2: When the flow rate rises above the high flow alarm level relay 1 will be energised and the red relay 2 LED will come on.
To view the RT7 Rate Totaliser pdf data sheet click here:Click here for RT7 Rate Total pdf datasheet

To see available data sheets and manuals click here: Download Area

Click below to switch to the following flowmeters:
BC7 Batch Controller | RT7 Rate Totaliser |202 Rate Totaliser | 214i Batch Controller | RTB Rate Totaliser | WFC5 4-20 mA Converter | WS5 Flowmeter Scaler | FC7 F to I Converter | Sensors & Amplifiers |

 
   
Display, sensors, instruments ampifier for flow meters