Transmitter

The Dx transmitter unit (SCI)

The compact, lightweight 14g Dx transmitter unit contains complete signal processing and digitization of up to 6 channels and an integrated antenna.

Wide temperature range

Whether hot or cold: The Dx transmitter unit works reliably in a wide temperature range.
Standard from -40 °C to +85 °C and with the extended temperature range from -40 °C to +125 °C.

Technical data

Voltage input in millivolt range: Two differential inputs or four single-ended inputs
Parameter Value Comments
Full-bridge 2 inputs
Half-bridge 4 inputs internal half-bridge completion
Bridge supply 4.096V (max. 40 mA short-circuit proof) 13 programmable measurement ranges by remote control
Input range ±0,244 mV/V bis ±1000 mV/V
Thermocouple 2 differential or 4 single-ended inputs type J, K
Electrical voltage 2 differential or 4 single-ended inputs  
Input voltage ±1 mV/V bis ±4096 mV/V 13 programmable measurement ranges by remote control
Resolution 16 bit  
Accuracy 0.01% up to 0.025% full scale  
Sampling rate

Dx: max. 4.6 kHz per channel
Dx-HT: max. 5.0 kHz per channel

 
Anti-aliasing filter
cutoff frequency
6pol Butterworth-characteristics
1/5 of sampling rate
Voltage input in volt range: One differential input and one single-ended input
Parameter Value Comments
Electrical voltage 1 differential and 1 single-ended input  
Measurement range ±0.011V bis ±45.065V  13 programmable measurement ranges by remote control
Sampling rate max. 4.6 kHz per channel Dx-HT:max. 5.0 kHz per channel
Anti-aliasing filter
cutoff frequency
6pol Butterworth-characteristics
1/5 of sampling rate
 
Additional channels for monitoring: Signal strength, voltage supply and temperature 
Parameter Value Comments
Voltage supply of SCT
(signal conditioning & transmitter)
Measurement range 6V up to 41.5 V Resolution 10 mV
Temperature of SCTs Measurement range:
for Dx: -30 °C to +100 °C,
for Dx-HT: -30 °C to +150 °C
Resolution 0.034 °C
Signal strength measurement range -99 dBm to -10 dBm Resolution 1 dBm
General data
Parameter Value Comments
Voltage supply Inductive supply with stator head or stator ring
or DC-supply 7 V to 39 V
 
Temperature range  Dx: -40 °C to +85 °C
Dx HT: -40 °C to +125 °C
Data transmission Data packages with error detection  
Transmission frequency

Dx: 13 frequencies in the 868 MHz band /

Dx HT: 17 frequencies in the 2.4 GHz band

freely adjustable via remote control - allows parallel operation of multiple systems
Transmission power max. 10 dBm  
Max. aggregate sampling rate of entire system Standard Dx:
1 SCT: 4.6 kHz
2 SCTs: 7.2 kHz
3 SCTs: 3.0 kHz
4 SCTs: 4.0 kHz
Dx HT:
1 SCT: 5.0 kHz
2 SCTs: 8.0 kHz
3 SCTs: 3.6 kHz
4 SCTs: 4.8 kHz
Housing material PEEK highly temperature resistant polymer
Dimensions ca. 45 x 25 x 10 mm  
Weight ca. 14g  
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