FS10 Series
Fluid Components International LLC 21
5 SET-UP AND OPERATION
FS10 Function Overview
The FS10 flow monitor comes configured for use as a flow or temperature meter. The output of the switch configuration is a SPDT relay contact or
binary collector to ground [N-channel MOSFET] output (sync). A 4-20 mA output signal is also active as a signal reference. In the transmitter configu-
ration, either flow or temperature is assigned to the 4-20 mA output. The table below shows the possible output configurations, including the status
of the LED bar display.
Table 2 – Output Configuration [Field Selectable with PC Interface Kit]
*
Caution
: Frequency output function must only be used with solid state output. Relay must NOT be engaged. Select proper jumper set-
ting for MOSFET solid state output (see Section 3, Instrument Wiring).
• Flow measurement is mapped using CUST_FLOW_MIN and CUST_FLOW_MAX in the 4-20 mA output configuration.
• Temperature measurement is mapped using CUST_TEMP_MIN and CUST_TEMP_MAX in the output configuration and reflected in the
4-20 mA output when configuration 4 or 5 is selected. The default temperature range mapped to the 4-20 mA output is 0 °F to 250 °F
[-17.8 °C to 121 °C]. Use the FS10 Windows PC interface program to rescale the temperature output as required.
The output configuration setting is normally factory set but it can be changed in the field if required. Use caution when making any configuration
changes, as the monitor may not have been properly calibrated to accommodate the new setting. Use the Windows PC interface or the RS232 inter-
face to make a change in output configuration.
Note
: ATEX-approved units are supplied with a polycarbonate UV filter under the silicone boot. Remove the boot and filter to use
button setup (see next section).
Configuration 4-20 mA Output Relay On/Off Output LEDs
1
(default)
Corresponds to flow
measurement
Controls relay switch on/off from flow Reflects flow. Flashing LED
indicates Relay Limit.
2* Corresponds to flow
measurement
Frequency corresponds to flow Reflects flow.
3* Corresponds to flow
measurement
Frequency corresponds to temperature Reflects flow.
4 Corresponds to temp
measurement
Controls relay switch on/off from flow Reflects temperature. No Relay
Limit indication.
5 Corresponds to temp
measurement
Controls relay switch on/off from flow Reflects flow. Flashing LED
indicates Relay Limit.
6* Corresponds to temp
measurement
Frequency corresponds to temperature Reflects temperature.
4 POWER UP, FUNCTIONAL VERIFICATION AND ADJUSTMENT
Before applying power to the instrument, it is recommended that a third party inspect the installation workmanship. Make sure wires are not pinched
or frayed. Check for matching serial numbers on the sensing element and the control circuit. Verify that the power and alarm circuits are properly
connected. Review the instrument configuration and its application.
Units supplied with LEDs will have at least one LED on or slowly blinking to indicate power on. Apply power and look for the power indicator light.
After power is established let the instrument warm up for 5 minutes. Refer to set-up in the next section. Properly connect the switch to earth ground
to ensure safe and problem-free operation.
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