NT228B GB2
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13.4
Frequency Output
It is possible to order a relay with a higher frequency than the totalizer copy,
proportional to flow output from 0.5 Hz up to 1 kHz.
To obtain a pulsed voltage (logical 1/0) level, it is necessary to connect a DC
source.
- INPUT/OUTPUT 2 -
---Relay Output A---
Function = FREQUENCY
Value = Pipe(A/B)
Q
0 Hertz = xxx.xx
1 kHertz = xxx.xx
Rel. Stat.= Closed
F Fault = 0 Hz
Simul. F.= xxx Hz
Wiring ------
02-B
This resource is mainly used for calibration by comparison to a standard.
13.5
PT 100 / PT 1000 RTD Inputs
These are normally confined to special functions. Those concerning PT 100 or
1000 and heat flow / energy measurement are explained in § 18 dedicated
chapter.
Connection can be 2, 3 or 4 wires.
Typical acquisition accuracy with 4 wires is better than 0.1 °C.
