Endress+Hauser RMA 421 Bedienungsanleitung Seite 79

Linearisation
Input
(continued)
Integration time 1s
Output signal
utput
(loop, power
supply)
Communication
resistor
Number
Galvanic
isolation
Output signal
utput
(analogue)
Voltage
Current
Fault message Presettable 3,6 mA or 21 mA
D/A resolution
Number
Galvanic
isolation
Output signal
utput
(relays)
Number
Contact type
Contact load
Voltage
Accuracy
Current
RTD, R
TC
Possible using max. 32 points
Terminal 81: 24V +/-20%, 30 mA
Terminal 83: 24V +/-20% - 250
250 resistor for HART
Ω
Volt drop on terminal 83!
1
To all other current circuits
0/4...20 mA, 20...4/0 mA or 0...10 V,
Over range +10%
Load: max. 20 mA
Impedance max. 500
Actions to NA UR NE43 recommendations
Current: 13 bit, Votlage: 15 bit
1
To all other current circuits
binary, switches on reaching set point
2
1 potential free change over contact
<= 250 VAC, 5 A / 30 VDC, 5 A
Accuracy 0.05% of end value (FSD)
Temperature drift: 0.01% / 10 K ambient temperature
Accuracy 0.05% of end value (FSD)
Temperature drift: 0.05% / 10 K ambient temperature
Accuracy:
Temperature drift:
+/- 0.2°C
Type T
T< -150°C +/-1.0°C
+/- 0.2°C
Type J
T< -150°C +/-1.0°C
+/- 1.0°C
Type K
+/- 1.0°C
Type R
Process transmitter
I
eas.
Ω ⋅
® communication built-in
Ω
2 wire: +/-0.8°C
3 wire: +/-0.5°C
4 wire: +/-0.3°C
. 1% / 1 K ambient temp.
(Pt1 , Ni1 )
0.1% / 10 K
ambient temp.
(Pt5 , Pt1 , ...4
Type N
Type U
Type L
Type W3
)
Ω
+/- 1.0°C
+/- 0.5°C
+/- 0.5°C
+/- 1.0°C
77