Pulse Output Setting - Universal Flow Monitors FlowStream OFS User Manual

Pulse Output Setting

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The pulse output rate is typically 5000 pulse per minute for all models. Pulse width is 2 msec
for all models.
To convert the above numbers to "pulses per standard liters," "pulses per standard cubic
centimeters" or "pulse per standard cubic feet" divide the pulse count by the full-scale value of
the particular flowmeter.
Example 1: The output for a 100 SLPM flowmeter is 5000/100 = 50 pulses per standard
liters.
Example 2: The output for a 500 SCFH flowmeter is 300,000/500 = 600 pulses per
standard cubic feet. (5,000 x 60 minutes = 300,000 pulses per hour)
1. To set the pulse rate, press and release A1 until "PULS" is displayed.
2. Press A2, the current pulse count will be displayed. Then release A2.
3. Press and release A1. The displayed choices are 5000, 2500, and 1250.
4. When the desired value is selected, press A2 to record it.
5. "SEt" is displayed and the unit returns to RUN mode with the new setting.
FSMAN.6 081214
Low-Speed
Single-Gas
Multi-Gas
Pulse Output
High-Speed
200-1200 Hz
4-20mA
0-5V (1-5V)
0-10V (2-10V)
0-100 Hz
Battery-operated
Bi-directional
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