JUMO 902931 Wtrans Receiver with Wireless Data Transmission Operating Manual - Manual (Page 95)

95
13 Appendix
13.1 Technical data
Input
Analog outputs
Number of transmitters Up to 16 transmitters can be received per receiver.
Radio frequency 868.4 MHz (Europe);
915 MHz (America, Australia, Canada, and New Zealand);
Ten frequencies can be configured in the 915 MHz frequency
band.
Open air range 300 m when using the antenna holder for wall mounting and the
3 m antenna cable.
When mounting the antenna directly on the receiver, a range
reduction of approx. 40 % must be taken into account.
Measuring range limits Depending on the set sensor
Configuration Using the keys on the device or with the setup program
Unit The units for temperature, pressure, potentiometer, and voltage
are configurable on the device or with the setup program.
Number 4 analog outputs for basic type 902931/10
2 analog outputs for basic type 902931/30
Output signal:
- Current
- Voltage
Configurable with the keys on the
device or with the setup program
Load-independent direct current 0 to 20 mA or 4 to 20 mA
Direct current 0 to 10 V
Transmission behavior Linear, freely scalable
Burden (at current output) ≤ 500 ohm
Load (at voltage output) ≥ 10 k ohm
Setting time
for temperature change The setting time depends on the transmission interval that is set
in the transmitter.
Setting time after switch-on
or reset ≤ 5 s
Calibration conditions AC 230 V/22 °C ( ± 3 K) or DC 24 V/22 °C ( ± 3 K)
Accuracy ≤ ± 0.1 % 1
(Accuracy includes calibration, linearization, burden influence,
load influence, and voltage supply influence)
1
All accuracy specifications in % from the measuring range end value of 20 mA or 10 V.
Residual ripple ≤ ± 0.2 %
1
Galvanic isolation The analog outputs are galvanically isolated
from each other and the interfaces.
Isolation voltage 50 V