The Dxtransmitter unit (SCI)

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

Photo Dx telemetry transmitter from above
Width: 45 mm
Photo of a Dx telemetry transmitter from front left
Height: 10 mm
Photos of a Dx telemetry transmitter from the top right
Depth: 25 mm

One telemetry for various signals

Gone are the times in which a separate transmitter unit is needed for each sensor type. The Dx transmitter unit has universal signal conditioning that supports different types of sensors.

Temperature

Strain gauge

Voltage

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 6pol Butterworth-characteristics
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  
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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