Endress+Hauser RMA 421 - Page 79

Input
(continued)
Linearisation Possible using max. 32 points
Integration time 1s
Output
(loop, power
supply)
Output signal Terminal 81: 24V +/-20%, 30 mA
Terminal 83: 24V +/-20% - 250
Ω⋅ I
meas.
Communication
resistor
250 Ω resistor for HART
®
communication built-in
Volt drop on terminal 83!
Number 1
Galvanic
isolation
To all other current circuits
Output
(analogue)
Output signal 0/4...20 mA, 20...4/0 mA or 0...10 V,
Over range +10%
Voltage Load: max. 20 mA
Current Impedance max. 500
Ω
Fault message Presettable 3,6 mA or 21 mA
Actions to NAMUR NE43 recommendations
D/A resolution Current: 13 bit, Votlage: 15 bit
Number 1
Galvanic
isolation
To all other current circuits
Output
(relays)
Output signal binary, switches on reaching set point
Number 2
Contact type 1 potential free change over contact
Contact load <= 250 VAC, 5 A / 30 VDC, 5 A
Accuracy
Voltage Accuracy 0.05% of end value (FSD)
Temperature drift: 0.01% / 10 K ambient temperature
Current Accuracy 0.05% of end value (FSD)
Temperature drift: 0.05% / 10 K ambient temperature
RTD, R Accuracy: 2 wire: +/-0.8°C
3 wire: +/-0.5°C
4 wire: +/-0.3°C
Temperature drift:
0.01% / 10 K ambient temp.
(Pt100, Ni100)
0.1% / 10 K ambient temp.
(Pt500, Pt1000, 0...4000
Ω )
TC Type T +/- 0.2°C
T< -150°C +/-1.0°C
Type N +/- 1.0°C
Type J +/- 0.2°C
T< -150°C +/-1.0°C
Type U +/- 0.5°C
Type K +/- 1.0°C Type L +/- 0.5°C
Type R +/- 1.0°C Type W3 +/- 1.0°C
Process transmitter
77