Endress+Hauser RA33 - Page 53

Batch Controller RA33 Technical data
Endress+Hauser 53
Temperature input
current /RTD
These inputs can be used either as current inputs (0/4 to 20 mA) or as resistance temperature
detector (RTD = resistance thermometer) inputs. It is also possible to configure one input as a
current input and the other as an RTD input.
The two inputs are galvanically connected but galvanically isolated from the other inputs and
outputs (testing voltage: 500 V).
Cycle time
The cycle time of the temperature measurement is 500 ms.
Current input
RTD input
Pt100, Pt500 and Pt1000 resistance temperature detectors can be connected to this input.
Density input Cycle time
The cycle time of the density measurement is 125 ms.
No-load supply voltage: 7 V to 9 V
Current limiting resistance in the power supply
(pull-up at input):
562 Ω to 1 kΩ
(Not suitable for active input voltages)
Current/pulse input:
Low-level
High-level
≤ 8 mA
≥ 13 mA
Loading capacity: Max. 50 mA, max. 2.5 V
Input impedance (load): 50 Ω
Accuracy during frequency measurement:
Basic accuracy: 0.01 % of measured value
Temperature drift: 0.01 % of measured value over entire temperature range
Measuring range: 0/4 to 20 mA + 10 % over range
Accuracy: 0.1 % of full scale value
Temperature drift: 0.01 %/K of full scale value
Loading capacity: Max. 50 mA, max. 2.5 V
Input impedance (load): 50 Ω
A/D converter resolution: 24 bit
HART
®
signals are not affected.
Measuring ranges:
Pt100_exact:
Pt100_wide:
Pt500:
Pt1000:
-200 °C to 300 °C (-328 to 572 °F)
-200 °C to 600 °C (-328 to 1112 °F)
-200 °C to 300 °C (-328 to 572 °F)
-200 °C to 300 °C (-328 to 572 °F)
Connection method: 2-, 3- or 4-wire connection
Accuracy: 4-wire:
0.06% of measuring range
3-wire:
0.06% of the measuring range + 0.8 K (1.44 °F))
Temperature drift: 0.01 %/K (0.0056 %/°F) of the measuring range
Characteristic curves: DIN EN 60751:2008 IPTS-90
Max. cable resistance: 40 Ω
Cable open circuit detection: Outside the measuring range
Measuring range: 0/4 to 20 mA + 10 % over range
Accuracy: 0.1 % of full scale value
Temperature drift: 0.01 %/K of full scale value
Loading capacity: Max. 50 mA, max. 2.5 V
Input impedance (load): 50 Ω
A/D converter resolution: 24 bit
HART
®
signals are not affected.