101364     Model FT2 
1.4.  Analog 4-20 mA outputs 
Two industry standard 4-20 mA isolated analog outputs are available to monitor flow rate and 
temperature.  Each output is scalable for the 4 and 20 mA values.  See the programming section for 
details. 
1.5.  Discrete I/O  
  One discrete input is available for remote resetting of the totalizer and elapsed time. 
One isolated discrete output is available for generating an alarm for High or Low limits for temperature 
or flow rate, if the output is not used for the pulse output. 
1.6.  Frequency/Alarm Output 
One isolated frequency output is available to monitor flow rate and is typically used for totalization.  
The maximum frequency output is 100 Hz.  The output can be scaled by using the flow setting and 
maximum frequency or using the pulse per unit or unit per pulse method of entry.  The isolated digital 
output can be used either as a frequency output or an alarm output but not both. The output type is 
selected by JP1. 
1.7.  Local Display Options  
An optional front panel with a LCD display and keypad is available to display measured data and 
allow field programming of the flowmeter.  The display is an easy to read, two-lines, 16 characters 
backlit LCD and 4 function keys.  The local display/keypad module is wired to the FT2 electronics 
through connector TS6. TS6 is on the main board.  Refer to the Programming section for a detailed 
explanation of its usage. 
1.8.  Communication Features 
The FT2 offers a RS232 serial link that communicates to a Palmâ„¢ PDA handheld or with a PC 
application for data display and programming.  Also, RS485 is available to connect to the optional 
front panel with an interface to a specific bus converter (Profibus, DeviceNet or Ethernet).  The RS485 
can connect directly as an optional Modbus interface. Only one bus protocol is supported at one time. 
1.9.  Dimension Details 
  Figure 1-2 Enclosure Mounting Dimensions 
 
 
Rear View of enclosure without sensor or 
conduit.  AC power enters on one side, DC 
power and signals enter on the other side. 
Fox Thermal Instruments Inc., 399 Reservation Road, Marina, CA 93933  Page 5