PACEline CMD600 - The all-rounder from the PACEline product family
The digital charge amplifier for piezoelectric sensors assures multiple uses in many applications in the laboratory and production. It is easy to use, absolutely reliable and offers an excellent price-to-performance ratio.
The SensorTeach function implemented in the CMD600 is a world first. This function enables the analog output signal to be automatically parameterized - during a production cycle. In particular, very fast processes that do not allow longer hold times for adjusting the measuring range benefit from "SensorTeach".
The CMD600 charge amplifier measures very fast force, torque and pressure signals at frequencies of up to 30 kHz and can be used with piezoelectric sensors up to max. 600,000 pC (Pico coulombs). The measurement range is freely scaleable and even signals of minimum strength are available at high resolution without quality loss via a second, internal measurement range; the CMD600 is thus eminently suited to measuring very small forces.
The very wide measuring range from 50 to 600,000 pC ensures guaranteed accuracy even in the partial load area. The CMD600 charge amplifier reliably records and evaluates small process values too.
Best price/performance ratio
The CMD600 operates reliably with both HBM transducers and data acquisition systems as well as third-party products. The standard 10 V analog signal output guarantees that the amplifier can be operated with virtually all measurement systems. Furthermore, the Ethernet interface enables measured values to be transmitted using the streaming method providing up to 1 kHz bandwidth. The CMD600 charge amplifier offers performance features that are significantly superior to third-party charge amplifiers - at the same price.
Integrated highpass filter
CMD600 has an integrated highpass filter that effectively eliminates the drift affecting piezoelectric sensors. No signal loss occurs with fast, dynamic processes, because only the static and quasi-static signal components are filtered. The advantage: The CMD600 is not overloaded, even with long measurement times.
Fig. 1: CMD600 signal behavior with activated highpass filter
Full TEDS functionality integrated in the charge amplifier
Of course, the CMD600 charge amplifier offers full TEDS functionality for automatic sensor identification. You save time during installation and the quality of test results is further increased.
World first: SensorTeach function
The so-called SensorTeach function is particularly useful for adjusting the measurement range. If this function has been activated, the measurement cycle is run through once prior to the actual start of measurement. Then the CMD600 automatically adjusts to the minimum and maximum values determined. The SensorTeach function is particularly suited to very fast processes that do not enable conventional calibration, for example, blow molding of PET or aluminum bottles using compressed air.
Charge amplifier offering robust quality
Of course, all signal inputs and outputs are electrically isolated to ensure easy integration into electric systems and machines. The CMD600 with its die-cast aluminum enclosure easily copes with harsh ambient conditions often found in manufacturing environments. It is extremely robust and complies with IP65 protection class.
What are the benefits of CMD600? See the interview with Michael Guckes, Product and Application Manager at HBM Test and Measurement.
CMD600-P - Digital charge amplifier with IP65 protection
Saving cost and space plays an ever increasing role in modern machine and system design. On the one hand, all components need to be as small and flexible as possible for integration into the machine or system - this saves space and reduces wiring effort. On the other hand, components offer enhanced functionality and it is essential that they allow convenient and flexible configuration and maintenance to further reduce installation and servicing cost.
The CMD600-P digital charge amplifier combines exactly these features. Its extremely compact design and high functionality, together with the IP65 degree of protection, enable it to be integrated directly in the machine near the measuring point. It has been optimized for use in harsh or dirty environments. At the same time, the risk of damage to the sensor lines connecting to the amplifier or the possibility of interference has been minimized. Connectors that are not required are securely sealed with protective caps.
Digital inputs and outputs and the Ethernet interface allow users to easily parameterize the device and monitor it during later operation. Integrated peak value detection and limit value monitoring functions enable control functions to be distributed and thus relieve the central control unit. Should parameters such as measuring range, limit value monitoring, etc. change later on, these can easily be adapted and stored in the device's internal parameter sets. The command set implemented in the CMD600-P allows use in control systems as well as integration into the system visualization through to remote maintenance.
Accessories and Cables
CSB4/1 summing box
Simplify the installation of piezoelectric sensors. The CSB4/1 summing box enables up to four piezoelectric sensors to be connected in parallel to an amplifier input. It can be fastened with screws and features electrical isolation of enclosure and sensor shielding.
All cables for piezoelectric transducers from HBM are particularly noise-free and can be used over the sensors' entire temperature range.
The main specifications at a glance:
- Temperature range: -55 to +200 degrees C
- Shielding: Semi-conducting intermediate layer, silver-coated copper braid
- Sheath: FPM
- Triboelectric noise: Maximum 1 pC
- Insulation at 20°C: 1014 ohms
- Impedance: 50 ± 5 ohms
- Outside diameter: 1.9 mm
- Bending radius: 10 mm
- Insulator: PTFE
Our range of accessories is constantly being extended and currently comprises the following cables:
- Adapter for connecting two cables with 10-32UNF connector
- Sockets at both ends
- For extending piezoelectric cables
- Cable length: 2, 3 or 7 m
- 10-32 UNF plug on both sides
- Suitable for all sensors with plug, CSB summing box and CMA amplifier
- Cable length: 0,2 or 3 m
- 10-32 UNF plug on both sides, however, compared to 1-KAB143 with massive plug protection
- O-ring seal at sensor for extremely harsh conditions of use
- Suitable for all sensors with plug, CSB summing box and CMA amplifier
- Cable length: 2 or 3 m
- One side with type 10-32 UNF plug, other cable side with BNC plug
- For connection of all sensors with plug, CSB summing box and CMD600 digital charge amplifier
Industrial Ethernet Interface
Furthermore, the software included in the scope of supply allows ease of use and parameterization of the amplifier. It automatically identifies equipment connected to the network via TCP/IP, enables the IP address to be set (remote maintenance by Industrial Ethernet) and measured values to be recorded for monitoring and diagnostics.
The Industrial Ethernet interface permits direct transmission of all process monitoring parameters from the machine control to the CMD600 digital charge amplifier. If no computer or machine control with an Ethernet interface are available, the CMD600 can also be parameterized via the digital input. An LED status display enables diagnostics directly on the equipment.
Furthermore, the CMD600 charge amplifier software provides a line recorder. Measured values and measurement curves can conveniently be visualized online. This enables stored process values to be used for subsequent analysis of the machine so as to analyze the production process and further optimize it.
Integrated into the world of automation
CMD600 can be easily integrated into downstream automation systems using the measurement signal output's voltage output that is electrically isolated from the mains (+/-10 V). The signal can be used either for transmitting the actual measured value or peak values.
The Ethernet interface enables the CMD600 charge amplifier to be used in networks through to remote diagnostics. In addition, CMD600 is suitable for operation in controls used in production.
HBM provides software modules and programming examples needed for easy implementation in Simatic-Step7.
Integration into applications programmed under LabView is easily achieved - thanks to the CMD600 LabView driver and the examples available from the system CD included in the scope of supply and from the download area.
In addition to the industrial amplifiers HBM provides the appropriate ePLAN macros. They allow easy and error-free integration of the instruments in the project planning of the automation environment.
ePLAN Electric P8 is an engineering tool for modern CAE software supported by a database and facilitates consistent project planning, documentation and administration of automation systems. ePLAN macros enable users to easily integrate the process controllers in their project planning. Parts data, drawings and pin assignments are available in ePLAN Electric P8 immediately after import of the macros.
The free macros are available on the documentation CD included in the process controllers' scope of supply and can also be downloaded here.
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