Endress+Hauser RMS 621 - Page 58

10 Technical data RMS 621
58 Endress+Hauser
10.0.2 Output
Output signal Current, pulse, transmitter power supply and switching output
Galvanic isolation Basic device:
!
Note!
The specified insulation voltage is the AC testing voltage U
eff.
, which is applied between the
connections.
Basis for assessment: EN 61010-1, protection class II, over voltage category II
Current - pulse output variable
Current
• 0/4 to 20 mA +10% overreach, invertible
• Max. loop current 22 mA (short-circuit current)
• Max. load 750 Ω at 20 mA
• Accuracy 0.1% of full-scale value
• Temperature drift: 0.1% / 10 K ambient temperature
• Output ripple < 10 mV at 500 Ω for frequencies < 50 kHz
• Resolution 13 Bit
• Error signals 3.6 mA und 21 mA limit as per NAMUR NE43
Pulse
Basic device:
• Frequency range 0.5 Hz to 12.5 kHz
• Voltage level 0 to 1 V low, 24 V high ±15%
• Min. load 1 kΩ
• Max. pulse width 100 ms for frequencies < 4 Hz
Expansion cards (digital passive, open collector):
• Frequency range of 0.5 Hz to 12.5 kHz
• I
max.
= 200 mA
• U
max.
= 24 V ± 15%
• U
low/max.
= 1.3 V at 200 mA
• Max. pulse width 100 ms for frequencies < 4 Hz
Connection,
terminals
Power
supply
(L/N)
Input 1/2
0/4 to 20
mA/PFM/pul
se (10/11) or
(110/11)
Input 1/2
TPS
(82/81) or
(83/81)
Input 1/2
temperature
(1/5/6/2) or
(3/7/8/4)
Output 1/2
0 to 20
mA/pulse
(132/131)
or
(134/133)
Interface
RS232/485
housing
front or
(102/101)
TPS
external
(92/91)
Power supply 2.3 kV 2.3 kV 2.3 kV 2.3 kV 2.3 kV 2.3 kV
Input 1/2
0/4 to 20
mA/PFM/pulse
2.3 kV 500 V 500 V 500 V 500 V
Input 1/2 TPS 2.3 kV 500 V 500 V 500 V 500 V
Input 1/2
temperature
2.3 kV 500 V 500 V 500 V 500 V 500 V
Output 1/2
0 to 20
mA/pulse
2.3 kV 500 V 500 V 500 V 500 V 500 V 500 V
Interface
RS232/RS485
2.3 kV 500 V 500 V 500 V 500 V 500 V 500 V
TPS external 2.3 kV 500 V 500 V 500 V 500 V 500 V