EMD-RMTR.. User’s Manual
8
Frequency output
Digital output means frequency output and pulse output, and both of them use the same output point, so user
can choose only one type of them but not both.
Frequency output range is 0 to 5000Hz, and corresponding the percent of flux
f : Measuring Value
Full Scale
The up limit of frequency output can be adjusted. It can be chosen from 0 to 5000Hz, and also can be chosen
low frequency: such as 0 to 1000Hz or 0 to 5000Hz.
Frequency output mode can be used in control applicaon, because it responses the percent flux. Users can
choose pulse output when the equipment is applied to count.
Pulse Output
Pulse output mainly applies in count mode. A pulse output delegates a unit flux, such as 1L or 1 M3 etc. Pulse
output unit divide into 0.001L, 0.01L, 0.1L, 1L, 0.001 M3, 0.01 M3, 0.1 M3, 1 M3 .When the pulse unit is
selected, please noce the match of the flux range of flowmeter and pulse unit. For volume flux, count
formula as follows:
Q (l/sec) : 0,0007854 x ID2 x V
Q (m3/sec) : 0,0007854 x ID2 x V x 10-3
Where ; ID : Inside diameter (mm) V : Velocity ( m/sec)
The oversize flux and too small pulse unit will be made the pulse output over the up limit.
Generally, pulse output should be controlled below 3000 Pulses/Sec.
Otherwise, pulse output is different from frequency output. When pulse output cumulates a pulse unit, it
exports a pulse. Therefore, pulse output is not equality. Generally, measure pulse output should choose to
count instrument, but not frequent instrument.
Grounding
Contact area of copper Connector PE on Converter Cabinet for grounding should be larger than 1.6mm2.
Contact resistance should be less than 10Ω.
x frequency range
