F118 - Flow rate monitor / totalizer

F118 - Flow rate monitor / totalizer
with linearization, high / low alarms, analog and pulse outputs

The F118 is a versatile flow rate indicator and totalizer with the ability to precisely linearize the flowmeter signal. In addition to the average K-Factor or Span, ten linearization points can be entered with their frequencies or values. The unit will interpolate between these points, greatly enhancing accuracy in any flow range, even for very low frequency applications. Moreover, a continuous flow rate monitoring feature is available with high and low flow rate alarm values and up to three alarm outputs. Flow rate and total are transmitted with an analog and scaled pulse output.
The display shows flow rate, total, accumulated total, alarm values, alarm messages and status. On-screen engineering units are easily configured from a comprehensive selection.
A wide range of options further enhance this models capabilities, including Intrinsic Safety for hazardous area applications and full Modbus communication.

Features
• Ten point linearization of the flow curve - with interpolation.
• Flow rate monitoring: two alarm values can be set: low and high flow rate alarm.
• Alarm values can be changed by the operator or they can be passcode protected.
• Analog and pulse outputs.
• Displays total and flow rate simultaneously.
• Flow rate: seven 8mm (0.31") digits.
• Total - resettable: seven 17mm (0.67") digits.
• Accumulated total - not resettable: eleven 8mm (0.31") digits.
• Separate engineering units for flow rate and total on the display.
• Up to three configurable alarm or scaled pulse outputs.
• Displays clear alarm messages.
• Green LED backlight.
• Auto backup of settings and running totals in EEPROM memory.
• Operational temperature: -30°C to +80°C (-22°F to 178°F).
• Very compact design for panel mount, wall mount or field mount applications.
• Rugged aluminum or GRP field mount enclosure IP67 / NEMA4X.

Applications
Liquid flow measurement with mechanic flowmeters where a precise calculation over the full measurement range and continuous flow rate monitoring is required.
Alternative basic models: F016, F112.

Flowmeter Inputs
• Pulse type inputs:
Reed-switch, NAMUR, NPN/PNP pulse, Sine wave (coil), active pulse signal.
• (0)4 – 20mA.
• 0 – 10V DC.

Pulse Outputs
• Function: Scaled pulse output according to linearized accumulated total (e.g. a pulse every 3.25 gallons).
Max. frequency: 64Hz.
Adjustable pulse length from 8 msec. to 2 seconds.
• Type: Up to three passive NPN transistors, active PNP transistors or isolated electro-mechanical relays.

Alarm Outputs
• Function: Configurable alarm outputs for low, high or both combined flow rate alarms.
• Type: Up to three passive NPN transistors, active PNP transistors or isolated electro-mechanical relays.

Analog Outputs
• Function: Re-transmitting the linearized flow rate - the output can be scaled to any range (e.g. 200 L/min to 1200 L/min).
• Type: One passive isolated, floating or loop powered 4 – 20mA output or one active (0)4 – 20mA or 0 – 10V DC output.

Power Supply
• Battery.
• 4 – 20mA Loop-powered.
• 8 – 24V AC/DC.
• 115 – 230V AC.

Sensor Supply
• 3.2, 8.2, 12, 24V DC.

Intrinsically Safe
• ATEX: II 1 GD EEx ia IIB/IIC T4 T 100 °C

Explosion Proof
• ATEX: II 2 G EEx d IIB T5

Communication
Function: All process data and settings can be read and modified through the communication link.
Protocol: Modbus RTU.
Interface: RS232 / RS485 2-wire or 4-wire / TTL.