Measurement boards & mainframes

The robust RASdelta mainframe is available with 8 and 16 measurement board slots. RASdelta measurement boards can be exchanged, depending on the application. Due to its compact format and low weight, the hardware is suitable for mobile use and easy transport. The mainframe is resilient and temperature insensitive, due to the integrated fan. Existing sensors and electronics of the ROTEC RAS FireWire series are compatible with the RASdelta series. The integrated touch panel display enables you to operate the system as a data logger without a measuring laptop.

Trigger board

The powerful RASdelta trigger board synchronizes all measurement data between channels, acquisition modules and connected front-ends. It is an integral part of the RASdelta.
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Input channel
1
Connector
8-pin Lemo, 3-pin Lemo (digital) and SMB (analog)
Maximum input frequency
20 MHz
Other
  • Power supply for external electronics
  • +5 V and +12 V
  • 5 W per channel
  • short-circuit proof
Trigger board

Speed board

With the RASdelta speed board, you record precise, multi-channel and digital speed measurement data for all transmission, control and auxiliary drive tests. It is the basis for torsional vibration analysis. The data is acquired via magnetic, angular equidistant scanning, an incremental encoder or a laser.

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Input channel
2, galvanically isolated
Resolution
12,3 GHz
Connector
8-pin Lemo
Maximum (output) pulse frequency
  • 1 MHz per channel with two-channel operation
  • 2 MHz with one-channel operation
Overvoltage protection
+/- 80 V
Measurement modes
Speed, frequency, duty cycle or on/off-ratio
Other
  • Internal pulse divider (optional/required, if > 2 MHz)
  • Variable trigger levels from 0,3 V to 4,5 V
  • Trigger on falling, rising or both edge
  • Power supply for external electronics: +5 V and +12 V
  • 5 W per channel
  • short-circuit proof
Speed board 12 GHz

Analog board 3,2 MHz

With the RASdelta analog board, you can measure analog quantities such as airborne and structure-borne noise, acceleration, temperature, displacement or pressure. These quantities can be used, for example, to determine the position of a sound source or to carry out detailed valve train or cylinder pressure investigations. The analog measurement data is acquired by equidistant sampling.
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Input channel
2, galvanically isolated
Max. sampling frequency per channel
3,2 MHz
Analog bandwidth
1,2 MHz
A/D converter
16-Bit Sigma-Delta
Connector
SMB
Upper input voltage range
  • 3 balanced input voltage ranges of 0,1 V, 1 V and 20 V
  • AC and DC coupling
  • ICP power source
Analog board 3.2 MHz

Analog board 50 kHz

With the RASdelta analog board, you can measure analog quantities such as airborne and structure-borne noise, acceleration, temperature, displacement or pressure. These quantities can be used, for example, to determine the position of a sound source or to carry out detailed valve train or cylinder pressure investigations. The analog measurement data is acquired by equidistant sampling.

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Input channel
3, differential, galvanically isolated
Max. sampling frequency per channel
50 KHz
Analog bandwidth
24 KHz
A/D converter
24-Bit Sigma-Delta
Connector
SMB
Upper input voltage range
  • 2 balanced input voltage ranges of 40 V and 80 V
  • DC coupling
  • no ICP power source
Lower input voltage range
  • 11 balanced input voltage range 20 V, 10 V, 5 V, 2,5 V, 1,25 V and 625 mV, 320 mV, 160 mV, 80 mV, 40 mV and 20 mV
  • AC and DC coupling
  • ICP power source
Analog board 50 kHz

Tempera­ture board

With the RASdelta temperature board, you record measurement data from resistance thermometers and thermocouples. The measurement of the oil temperature in vehicles is indispensable, especially for transmission tests.

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Input channels
  • 8, with 6-800 Hz sampling rate per channel
  • 4, with 6-1600 Hz sampling rate per channel
Temperature range
-200°C to 850°C
Coupling
  • 2-wire configuration for Pt100/1000 and thermocouples
  • 4-wire configuration for Pt100/1000
Supported sensors
  • Pt100/1000
  • Thermocouples type J (Fe/CuNi)
  • Thermocouples type K (NiCr/CrA)
  • Thermocouples type T (Cu/CuNi)
Precision
+/- 0,1° C (for Pt100/1000 in a 4-wire configuration at room temperature)
Resolution
  • Thermocouples 0,1°C
  • Pt100/1000: 0,01°C
Temperature board

DMS board

The RASdelta strain gauge board is an integrated two-channel DC voltage amplifier for signal acquisition from strain gauge-based, piezoresistive, magnetoresistive or potentiometric transducers. These include force, torque, pressure, displacement and angle sensors or scales. A big advantage of the board is that you can do without additional measuring amplifiers.

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Input channel
2, galvanically isolated
Max. sampling frequency
50 KHz
Bridge types
Full and half bridge
Connector
8-pin Lemo
Other
  • Burn-Out detection / line break
  • 4-wire and 6-wire operation
  • Automatic zero adjustment
  • Compensation of the measuring lead resistance
DMS board

CAN BUS board

With the CAN BUS board, you can record CAN and OBD-II variables and evaluate them in relation to torsional vibration analysis. This allows you to include already available quantities in the measurement without further sensor applications.
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Input channel
2, galvanically isolated
CAN standard
  • 2.0 A (11-Bit-Identifier) and
  • 2.0 B (29-bit Identifier)
Baud rate
1 Mbit/s per channel
Connector
8-pin Lemo
Operating mode
Passive Listener, Polling (OBD-II)
Other
  • Switchable CAN terminating resistor (120 Ohm)
  • Built-in signal filtering and decoding engine
CAN BUS board

Mainframe 8

Get to know our small version of the RASdelta mainframe! The RASdelta 8 is the smallest measuring system of the RASdelta series. You can equip the front end with one master board and up to seven measurement boards.

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Measurement board slot
8
Data transfer
  • Clock synchronous operation of several devices through I/O synchronization
  • 2 high-speed Gigabit Ethernet ports for data-uplink
  • Overall maximum net data transfer rate of about 80 Mbyte/s
  • Up to 100 Mbit/s data rate per measurement board
  • Up to 1000 Mbit/s overall data rate through Ethernet link
  • Long-term stability through 1 MHz high precision clock
Power supply
  • DC power supply 60 W
  • Input voltage range 6 V to 30 V
Size and weight
  • Height 69 mm (base dimension 263 mm x 227 mm)
  • Weight 2,75 kg incl. 8 measurement boards (3,30 kg with AC/DC power supply)
Other
  • Embedded controllers and display units
  • 2.8 inch integrated touch panel display for setup and status information
  • USB interfaces for storage and remote control
  • Temperature regulation by controlled fan
RASdelta mainframe 8

Mainframe 16

Get to know our big version of the RASdelta mainframe! The RASdelta 16 front end has 16 slots for trigger and measurement boards. You can equip the front end with one master board and up to 15 measurement boards.

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Measurement board slot
16
Data transfer
  • Clock synchronous operation of several devices through I/O synchronization
  • 2 high-speed Gigabit Ethernet ports for data-uplink
  • Overall maximum net data transfer rate of about 80 Mbyte/s
  • Up to 100 Mbit/s data rate per measurement board
  • Up to 1000 Mbit/s overall data rate through Ethernet link
  • Long-term stability through 1 MHz high precision clock
Power supply
  • DC power supply 120 W
  • Input voltage range 6 V to 30 V
Size and weight
  • Height 128 mm (base dimension 263 mm x 227 mm)
  • Weight 4,55 kg incl. 16 measurement boards (5,75 kg with AC/DC power supply)
Other
  • Embedded controllers and display units
  • 2.8 inch integrated touch panel display for setup and status information
  • USB interfaces for storage and remote control
  • Temperature regulation by controlled fan
RASdelta mainframe 16

Cluster

You can modularly expand the number of channels by coupling the RASdelta front-ends to each other via the Ethernet and Sync interfaces. One of the front ends acts as master card and synchronizes the other devices in the cluster. The ROTEC software recognizes the RASdelta cluster as an extended front end with additional slots.

Cluster

Data logger

With the additional data logger module, you can convert your RASdelta 08 or 16 front-end to a data logger for mobile use such as in motor vehicles, on motorcycles, in racings or for applications at sea. The RASdelta runs in data logger mode without a measuring laptop, whereby all functions for operating the system can be executed directly at the RASdelta front end. Touch operations on the display enables measurements to be configured and carried out. All configuration and measurement data are stored on a micro SD card with USB adapter and can later be transferred to a PC for evaluation.

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Data storage
  • USB2 memory stick
  • Hard drives
Usable file format
  • FAT
  • FAT32
Max. size of the file system
256 GB
Use of the following measurement boards possible
  • Trigger board
  • Speed board
  • Analog board 50 KHz
  • Analog board 3.2 MHz
Data logger
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