Reliable CAN Measurement Technology 
Reliable CAN Measurement Technology
Allround measurement modules for sensors with analog voltage outputs: CSM’s AD MiniModules (ADMM) offer a wide range of applications for measuring analogue signals (voltage, current, pressure, flow rate, etc.).
The MiniModules score with their high measurement accuracy over the entire operating temperature range, the minimized sizes and the module housings’ protection class IP67. Due to the low intrinsic heat, the modules also reduce interference influences to a minimum.
The ADMM classic is available as a 4- or 8-channel module with galvanically isolated inputs for differential voltage measurements. The measurement inputs are adjustable per channel from ±100 mV up to ±60 V. They also feature measurement data rates of up to 10 kHz per channel (ADMM 4 classic HS).
In comparison to the “classic” series, ADMM “pro” modules provide very small measurement ranges which, for example, are suitable for the use of ratiometric sensors. Each channel of a “pro” module is equipped with a status LED. In addition, “pro” modules provide the option to use an extended scaling with 32 axis points per channel, instead of a 2-point scaling.
Module version “pro2” has been specifically designed for sensors with excitation voltages up to 30 V. With its high-precision, galvanically isolated sensor excitation it is also suitable for sensors with ground-referenced signal inputs.
The ADMM 4 CXS is a new edition of our classic ADMM 4. Its extremely compact size (approx. 93 × 30 × 46 mm) remains unchanged, the technical characteristics have been further improved and optimized.
The ADMM 4 CXS is the smallest member of the CSM measurement module family and was consistently designed for applications in engine compartments with limited space. Four differential voltage inputs with unipolar sensor excitation provide excellent measurement accuracy.
The integrated TEDS functionality supports sensor configuration and identification for the application.
The measurement module ADMM 8 BNC features 8 analog inputs and provides very good measurement accuracy. Sensors with BNC plug can be connected directly. ADMM 8 BNC is particularly suited for use in protected places or at test benches.
| Designation | Case eXtra Small (CXS) | Case Small (CS) | Slide Case Small (SCS) | Case Large (CL) | Slide Case Large (SCL) |
|---|---|---|---|---|---|
| ADMM 4 | |||||
| ADMM 4 classic HS | |||||
| ADMM 4 pro HS | |||||
| ADMM 8 classic | |||||
| ADMM 8 classic CANopen | |||||
| ADMM 8 BNC | |||||
| ADMM 8 pro | |||||
| ADMM 8 pro2 |
Centrally controlled power supply of the entire measurement chain: A CAN-based Power Control MiniModule (PCMM) serves as a central power distribution for distributed measurement setups.
The OUT MiniModule is a signal output module for generating analog variables. The OUT MiniModule (OUTMM) provides configurable output signals in accordance with a value that has been pre-defined by CAN bus messages. Typical use cases for an OUTMM are test benches with analog display units and actuators as well as the simulation of parameters in early development stages (HIL testing).
Regardless of whether it involves measurements of oil circuit pressure, the flow rate in the cooling circuit or a vehicle's ground clearance, many sensors convert their respective measured quantity into an analog voltage which can be processed in one of CSM's analog measurement modules.
The number of electrical and electronic components in vehicles is steadily rising. In order to provide an efficient design of vehicle electronics and electrical systems, precise measurements of current and voltage are essential.
