Technical data Batch Controller RA33
52 Endress+Hauser
10 Technical data
10.0.1 Input
Current/pulse input This input can be used either as a current input for 0/4 to 20 mA signals or as a pulse or frequency
input.
The input is galvanically isolated (500 V testing voltage towards all other inputs and outputs).
Cycle time
The cycle time is 125 ms.
Reaction time
In the case of analog signals, the reaction time is the time between the change at the input and the
time when the output signal is equivalent to 90% of the full scale value.
Current input
Pulse/frequency input
The pulse/frequency input can be configured for different frequency ranges:
• Pulses and frequencies up to 0.3 Hz to 12.5 kHz
• Pulses and frequencies up to 0.3 Hz to 25 Hz (filters out bounce contacts, max. bounce time: 5
ms)
Input Output Reaction time [ms]
Current Current ≤ 440
Current Relay/digital output ≤ 250
RTD Current/ relay/digital output ≤ 440
Cable open circuit detection Current/ relay/digital output ≤ 440
Cable open circuit detection, RTD Current/ relay/digital output ≤ 1100
Pulse input Pulse output ≤ 440
Pulse input Relay/digital output ≤ 250
Measuring range: 0/4 to 20 mA + 10 % over range
Accuracy: 0.1 % of full scale value
Temperature drift: 0.01 %/K (0.0056 %/°F) of the full scale value
Loading capacity: Max. 50 mA, max. 2.5 V
Input impedance (load): 50 Ω
HART
®
signals Not affected
A/D converter resolution: 20 bit
Minimum pulse width:
Range up to 12.5 kHz
Range up to 25 Hz
40 μs
20 ms
Maximum permissible contact bounce time:
Range up to 25 Hz 5 ms
Pulse input for active voltage pulses and contact sensors as per EN 1434-2, Class IB and IC:
Non-conductive state
Conductive state
≤ 1 V
≥ 2 V
No-load supply voltage: 3 V to 6 V
Current limiting resistance in the power supply
(pull-up at input): 50 kΩ to 2 MΩ
Maximum permissible input voltage: 30 V (for active voltage pulses)
Pulse input for contact sensors as per EN 1434-2, Class ID and IE:
Low-level
High-level
≤ 1.2 mA
≥ 2.1 mA
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