FDT-25W Wall Mounter Ultrasonic Flowmeter
Check if the current loop is calibrated correctly.
Display the present output current of current loop circuit.
Setup system date and time. Press ENT for modification. Use the dot key to skip the digits that
need no modification.
Display Version information and Electronic Serial Number (ESN) that is unique for each flow
meter.
The users may employ the ESN for instrumentation management
RS-232/RS485 setup. All the devices connected with flow meter should have matched serial
configuration.
The following parameters can be configured: Baud rate (300 to 19200 bps), parity, data bits
(always is 8), stop bits (1).
Select communication protocol.
Factory default is ‘MODBUS ASCII. this is a mode for MODBUS-ASCII, Meter-BUS, Fuji
Extended Protocol, Huizhong’s various protocols.
If you are going using MODBUS-RTU you have to select ‘MODBUS_RTU’.
AI3 value range.
Used to enter temperature/pressure values that are corresponding to 4mA and 20mA input
current. The display values have no unit, so that they can present any physical parameter.
AI4 value range.
Used to enter temperature/pressure values that are corresponding to 4mA and 20mA input
current.
AI5 value range.
Used to enter temperature/pressure values that are corresponding to 4mA and 20mA input
current.
Windows to setup the frequency range (lower and upper limit) for the frequency output function.
Valid range is 0Hz-9999Hz. Factory default value is 0-1000 Hz.
For Version-12, Version-13, Version-14 flow meters, you need a hardware module, which shall
be plugged to the Serial Expanding Bus, for the frequency output function. Please remember to
order the module if you need frequency output function.
For Version-15 flow meter, you need to indicate on your orders that you need the frequency
function; Otherwise you will get a flow meter which has no frequency output circuits.
Window to setup the minimum flow rate value which corresponds to the lower frequency limit of
the frequency output.
Windows to setup the maximum flow Rate value that corresponds to the upper frequency limit
of the frequency output.
LCD display backlight control. The entered value indicates how many seconds the backlight will
be on with every key pressing. If the enter value is great than 50000 seconds, It means that the
backlight will always keeping on.
LCD contrast control. The LCD will become darker or brighter when a value is entered.
Working timer. It can be cleared by pressing ENT key, and then select YES.
Window to setup the lower limit of flow rate for Alarm#1.
When the flow rate is below the set value, Alarm#1 equals ‘on’
Window to setup the upper limit of flow rate for Alarm#1.
When the flow rate is above the set value, Alarm#1 equals ‘on’
There are two alarms in the flow meter, and every alarm can be pointed to alarm output devices
such as the BUZZER or OCT output or RELAY output. For example, if you want the Alarm#1 is
to output by the OCT circuit, you need to set M78 at selection item 6.
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