10
WIKA Operating Instructions - Ultrasonic Flowmeter FLC-UFL
81500908.01 08/2020 EN
EN
4. FLC-UFL Series description
4.3.7 SLOT 2 - 4..20 mA Option board (01-0203 / TIP011)
When equipped with this option board, a passive (externally
powered) mA output is available. The output is software
configurable for any parameter required, however normally
it is used for flowrate, gas velocity etc.
Using the PC tool, it can be configured and calibrated.
Figure 4.3.7: Display, keypad, USB and switch
4.4 Front interfaces
1
Display
2
USB connector
3
Keys
4
Lock switch
1
2
3
4
4.5 Display and keypad
The front of the FLC-UFL series electronics is equipped with
a graphical 128x128 dot matrix LCD graphic display.
Four navigation keys are located at the corners of the display
for operation of the local user interface.
4.6 LEDs
Two LEDs are provided on the front panel. Their function is
explained in detail in chapter 7.
4.7 USB Service interface and lock switch
A mini USB connector is present for connection of a laptop
on the right side of the display.
ATTENTION!
This interface is not intrinsically safe and
therefore powered by the USB host (laptop
or computer). It may be used in a safe area only
or after taking suitable precautions such as gas
detection. Refer to the Safety instructions [1]
for further details.
The parameter lock switch is located below the USB
connector and provides a way to lock all relevant parameters.
This switch can be protected with a tamper proof sticker.
Refer to chapter 9 (Sealing) for more details on the lock
switch.
Note
: the sticker shall also covers one of the display bracket
screws.
LED
Function
Green LED
Power indication
Red LED
Status / Error indication
