FTB600B Series | 4 |
Infrared Sensors |
Section 4 - Infrared Sensor
A. Supply Voltage
24 Vdc. Do not exceed 24 Vdc. Doing so can cause overheating and eventual failure of all PC boards. Printed circuit boards are non- repairable.
B. Frequency Output
1.Square wave pulse, unscaled (See Figure
2.Output impedance 75 ohms
3.Directly proportional to flow rate
4.Output - dc frequency
5.Offset 0.64 volts
6.Peak voltage = Supply voltage - 1.2 volts
7.Peak to peak voltage Supply voltage - 1.2 volts - 0.64 volts
8.Output signal cycle 66.7% (i.e. at 100 Hz there is a 6 millisecond “on” time and a 4 millisecond “off” time)
9.TTL/CMOS circuit compatibility. The FTB600B Series has an operational amplifier output, which has a high input impedance and a low output impedance.
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