F197 - Set-point generator

F197 - Set-point generator
with temperature input, alarms and analog outputs

The F197 is a manual set-point generator. The operator enters an analog or a scaled output value or a percentage which will be transmitted as a (0)4 – 20mA or 0 – 10V DC signal to a control device. If available, the F197 can also display the measured actual process value. However, there is no direct control relationship between the input and output value. Further, one low and one high alarm value can be set with an alarm ignore function to monitor the process.
The display shows the preset value, actual value and status simultaneously. 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
• Manual (0)4 – 20mA / 0 – 10V DC control output.
• Preset value can be entered as a scaled value (e.g. 415°C), analog value (e.g. 15,3mA) or as a percentage.
• Displays the actual process value and transmitted value simultanously.
• One low and one high alarm value can be set with alarm ignore time function.
• Preset value: seven 17mm (0.67") digits during programming and 8mm (0.31") digits during process.
• Actual value: seven 17mm (0.67") digits during process.
• Modbus communication link for remote control.
• Green LED backlight.
• Backup of settings 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
Manual set-point control of process variables requiring a (0)4 – 20mA or 0 – 10V DC input value. For example to tune temperature or flow rate manually.

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

Temperature Inputs
• PT100 - 2 or 3 wire PRTD sensor.

Pulse Outputs
• None.

Alarm Outputs
• Function: Alarm outputs for low or high signal input alarms.
• Type: Two passive NPN transistors, active PNP transistors or isolated electro-mechanical relays.

Analog Outputs
• Function: Re-transmitting any value set by the operator. The output is scaled manually by the operator or through Modbus communication - the output can be scaled to any range (e.g. from 0% to 110%).
• 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
• 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.