Commissioning Batch Controller RA33
32 Endress+Hauser
6.3 Configuring the basic parameters/general device func-
tions
•Inputs, → ä 32
•Outputs, → ä 34
• Application, → ä 35
• Data logging, → ä 37
• Access protection, → ä 37
• Logbooks, → ä 38
• Communication/fieldbuses, → ä 38
6.3.1 Inputs
Flow pulse transmitter
The pulse input can process different current and voltage pulses. The software can switch to differ-
ent frequency ranges:
• Pulses and frequencies up to 12.5 kHz
• Pulses and frequencies up to 25 Hz (for bounce contacts, max. bounce time: 5 ms)
The input for voltage pulses and contact sensors is divided into different types according to EN1434
and provides a supply for switching contacts.
For all signal types, the pulse value of the flow transmitter has to be entered.
The calculation of the current value for the volume flow is floating; therefore, it decreases continu-
ously with slow pulses. After 100 seconds or if the value is less than the low flow cut off, the flow
value becomes 0.
The batching and statistics counters are summed up from the individual pulse values. The current
flow can also be calculated from the counters so that it can be shown on the display. The required
flow unit must first be selected in the flow settings.
Floating contacts, reed transmitters
Flow current signal
For flow transmitters with current signal output, the flow measuring range is scaled in Advanced
setup (→ ä 61).
Adjustment/calibration of the current input
To adjust the current inputs, a two-point calibration can be carried out in the Expert menu, for
example to correct the long-term drift of the analog input.
Voltage pulses and transmitters accord-
ing to Class IB and IC (low switching
thresholds, small currents)
≤1 V corresponds to Low level
≥2 V corresponds to High level
U max 30 V, U no-load: 3 to 6 V
Floating contacts, reed transmitters
Transmitters to Class ID and IE for
higher currents and power supplies
≤ 1.2 mA corresponds to High level
≥ 2.1 mA corresponds to Low level
U no-load: 7…9 V
IB Imp. 5Hz Slow pulse transmitters for floating contacts, reed transmitters
IC Imp. 200Hz Fast pulse transmitters for open collectors, optoelectronic couplers
ID Namur 200Hz NAMUR pulse transmitter
IE Imp. 10kHz Very fast pulse transmitters or frequency transmitters, PFM 10kHz for transmitters with
Pulse Frequency Modulation
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