Westermo RM-505U-K - Manual (Page 37)

man_505U-K_1.4.doc Dec 2008
    ELPRO Technologies Pty Ltd 2008 Page 37
Example 1:
A turbine meter is connected to a 505K with a pulse signal of 15 pulses per 100 litres. The
normal flow rate is 300 l/sec - that is, the normal pulse signal is 45Hz (15/100x300). Each
Kilolitre (Kl) corresponds to 150 pulses.
The flow signal is connected to PI2, and divider of 150 is selected such that the pulse count is
scaled to units of Kl. Both PI2 counters are transmitted to a 105C module for interfacing to a
HMI package. The HMI will read both counter values and calculate a 32 bit totalized flow
value.