54
14 Supplement
VEGAMET 841 • 4 … 20 mA
58864-EN-200312
Temperature error relating to 20 mA
0.008 %/K
Relay output
Quantity
3 x operating relay, one can be configured as fail safe
relay
Function
Switching relay for level, fault signal or pulse relay for
flow/sampling pulse, pump control
Contact
Floating spdt
Contact material
AgSnO2, hard gold-plated
Switching voltage
max. 250 V AC/60 V DC
Switching current
max. 1 A AC (cos phi > 0.9), 1 A DC
Breaking capacity
3)
min. 50 mW, max. 250 VA, max. 40 W DC (with
U < 40 V DC)
AC/DC operation
Mixed operation with AC/DC voltage is not permitted for
the relay outputs
Min. programmable switching hysteresis 0.1 %
Mode pulse output
Ʋ
Pulse length
350 ms
Current output
Quantity
1 x output
Function
Level/flow/sampling pulse
Range
0/4 … 20 mA, 20 … 0/4 mA
Resolution
1 µA
Max. load
500 Ω
Fault signal (switch over)
0; < 3.6; 4; 20; 20.5; 22 mA
Accuracy
Ʋ
Standard
±20 µA (0.1 % of 20 mA)
Ʋ
with EMC interferences
±80 µA (0.4 % of 20 mA)
Temperature error relating to 20 mA
0.005 %/K
Mode pulse output
Ʋ
Current pulse
20 mA
Ʋ
Pulse length
200 ms
Bluetooth interface
Bluetooth standard
Bluetooth 5.0 (downward compatible to Bluetooth
4.0 LE)
Frequency
2.402 ... 2.480 GHz
emitted power max.
+4 dBm
Max. number of participants
1
3)
If inductive loads or stronger currents are switched through, the gold plating on the relay contact surface will be
permanently damaged. The contact is then no longer suitable for switching low-level signal circuits.
