TF1100-EH transit-time handheld flowmeter manual
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which represents the flow rate, is intended to connect with other instruments.
The Frequency Output is totally user-configurable. Generally, four parameters should be
configured for the setups.
Enter the lower flow rate value in window M68 and the higher flow rate value in window
M69.Enter the frequency range in window M67.
For example, assume that the flow rate varies in a range 0m3/h to 2000m3/h, and an output
signal is at a maximum frequency of 1000Hz, the minimum of 200Hz is going to be required
for other instrumentation. The user should enter 0 in M68 and 2000 in M69, and enter 200
and 1000 in window M67.
Please note that the user has to make the selection with OCT (
Open Collect Transistor
)
output setups in window M78 by selecting the 13
th
option reading like ‘FO output’ to direct
the frequency output to the OCT OUTPUT hardware device.
The OCT output shares pins with the RS-232C interface, and the terminal is at Pin 1 for OCT
+ and the ground is at Pin 5.
A, B is DC power supply based on pulse receiver voltage, 5-24V is allowable. C,D is pulse
input for receiver. Select a resistor that is a maximum of 10% of the input impedance of the
receiving device, but do not exceed 10k ohms.
OCT: Black- and RS232 GND
White+
RS232: Green TXD
Blue RXD
