Dwyer Series PUB - Manual (Page 31)

3: Operating Procedures
27
Note: This does not apply if the PULSE OUTPUT menu is accessed by pressing the Pulse key when operating in
the FLOW READING mode.
Calibrating the pulse output signal range (volumetric mode)
Note: The pulse Output must be Off in order to change the Volume per pulse setting.
4. Select a Pulse width (in ms) to suit the particular application – e.g. electro-mechanical counter. Refer to the
manufacturer’s data sheet for the minimum pulse width.
5. Select Exit and press the ENTER key to return to the FLOW READING screen.
Selecting the pulse output frequency mode
1. With the instrument operating in the FLOW
READING mode, press the Pulse function key to
access the
PULSE OUTPUT screen.
2. To change the Flow units shown in this menu
you must return to the FLOW READING screen
and select the required units using keys 7,8 and
9.
PULSE OUTPUT DD-MM-YY HH:MM:SS
Pulse output is ON Qxx.xx%
Flow units : gal
Output : On
Vol per pulse : 10.00
Pulse width (ms) : 10
Max Pulse Freq (Hz) : 10.00
Flow at Max Freq : 200.00
3. Select Vol per pulse and enter the required
value.
In the example shown, a 10 ms pulse is
produced for every 10 gallons of flow.
Calculated Pulse Value: 20.0
Exit
1. With the instrument operating in the FLOW
READING mode, press the Pulse function key to
access the
PULSE OUTPUT screen.
2. To change the pulse output to ‘frequency’ mode,
select the
Output menu option then select
Frequency as required.
3. A1 Pulse Frequency is ON message
appears in the second line of the display.
4. Select Exit and press the ENTER key to return
to the FLOW READING screen.
PULSE OUTPUT DD-MM-YY HH:MM:SS
A1 Pulse Frequency is ON Qxx.xx%
Flow units : gal
Output : Frequency
Vol per pulse : 10.00
Pulse width (ms) : 10
Max Pulse Freq (Hz) : 10.00
Flow at Max Freq : 200.00
Calculated Pulse Value: 20.0
Exit