KEP ES749 - Page 75

ES749 Flow Computer
71
6.10
PULSE
OUTPUT
(Continued)
PULSE OUTPUT
Dene the ow quantity per output pulse. This is expressed in units
per pulse (i.e. ft
3
/ pulse).
Note:
Ensure that the max. owrate (full scale value) and the
pulse value entered here agree with one another. The max.
possible output frequency is 50Hz. The appropriate pulse
value can be determined as follows:
Pulse value > estimated max. owrate (full scale)/sec
required max. output frequency
Input:
Number with oating decimal point: 0.001...10000.0
Display: 1.000 ft3/P
PULSE VALUE
Set the pulse width required for external devices. The pulse width
limits the max. possible output frequency of the pulse output. For
a certain output frequency, the max permissible pulse width can be
calculated as follows:
Pulse width < 1 .
2 • max. output frequency (Hz)
Input:
Number with oating decimal point:
0.01...9.999 s (seconds)
Display: .01 s
PULSE WIDTH
Frequency signals can be simulated in order to check any instrument
that is connected to the pulse output. The simulated signals are
always symmetrical (50/50 duty cycle).
Note:
• The simulation mode selected affects the frequency output.
The ow computer is fully operational during simulation.
• Simulation mode is ended immediately after exiting this
submenu.
Selection:
OFF, 0.0 Hz, 0.1 Hz, 1.0 Hz, 10 Hz, 50 Hz
Display: OFF
SIMULATION FREQ>
PULSE VALUE
PULSE WIDTH
SIMULATION FREQ.