M-CNT3 4
4 digital inputs for capturing digital signals for frequency, count, duration, PWM, and flow measurements
New
Maximum performance for highly dynamic measurement tasks
With the M-CNT3 4, IPETRONIK introduces a new frequency measurement module in the M3 family that significantly expands the capabilities of modular measurement technology. The module combines high precision with maximum flexibility and integrates seamlessly into the new generation of devices.
With four freely configurable channels for different measurement modes, the M-CNT3 4 enables the precise acquisition of highly dynamic signals. The high-resolution 32-bit data format ensures exceptionally accurate and reliable measurement data acquisition—even in demanding applications.
In addition to its performance, the module features an ultra-compact and robust design that is ideal for use in vehicles, on test benches, or in the laboratory. The innovative magnetic and wireless connection concept significantly reduces cabling effort, shortens installation time, and ensures a stable and fail-safe data connection.
Quickly configure, capture, and analyze
As the newest member of the M3 family, the M-CNT3 4 benefits from a mature and proven measurement system that enables quick commissioning and reliable operation.
With CAN-FD support up to 5 Mbit/s, magnetic coupling without additional connection cables, and automatic termination, setup is significantly simplified and potential sources of error are reduced. Seamless integration with IPEmotion also simplifies the configuration, scaling, and evaluation of measurement data.
The M3 series supports up to 64 modules in a chain, enabling flexible measurement setups in vehicles, test benches, and laboratories. This scalable architecture shortens setup times and facilitates integration into complex measurement systems.
Seamlessly integrated into the M3 platform
The M-CNT3 4 expands the M3 platform with a module for the precise acquisition of highly dynamic digital signals. While other modules in the series are designed for measuring analog, thermal, or electrical quantities, the M-CNT3 4 focuses on applications with high pulse density.
This makes it particularly suitable for encoder evaluations as well as for the precise acquisition and processing of frequencies. As part of the M3 series, the module integrates seamlessly into existing measurement setups and complements the platform with a powerful solution for demanding digital measurement tasks.
Applications of the M-CNT3 4
- Speed and Angle Measurement
Turbocharger and engine speeds, cooling fans, transmission gear sensors, and torsional vibration analysis - Position and Encoder Applications
Steering angle, pedal, or throttle positions; quadrature encoders with index; and linear encoders in robotics applications - PWM and Actuator Signals
Acquisition of pulse width modulation signals for actuator feedback, motor, or valve control - Flow Measurements
Turbine flow sensors in cooling circuits, fuel systems, or other fluid technology applications - Industrial Applications
Part counting in production lines or indirect level detection via pulse signals
Special Features
- Acquisition of highly dynamic digital signal up to 400 kHz
- Up to 12 signals can be evaluated simultaneously from 4 channels
- Adjustable sampling rate per channel up to 5 kHz
- Integrated sensor power supply with intelligent load management
- TEDS Class 2 support
- Virtual channels for parallel output of measured values
Are you interested in the M-CNT3 4?
Please fill in the contact form - we will get in touch with you shortly.
Technical data
| General channel properties | |
|---|---|
| Special functions | Selectable number of averaging values (1-100) |
| Internal timebase | 100 MHz |
| Internal sampling rate | 5 kHz |
| Channel sampling rates | 2 / 5 / 10 min - 1 / 2 / 5 / 10 / 100 / 200 / 500 / 1000 / 5000 Hz |
| Total sampling rate | 20 kHz |
| Hardware filter types | Bessel |
| Hardware filter (switchable) | 10 / 20 / 50 / 100 / 200 / 500 Hz / 1 / 2 / 5 / 10 / 20 / 50 / 100 kHz 4th order |
| Hardware filter (static) | 4 MHz 2nd order (Bessel characteristic) |
| Filter attenuation at ambient temperature 25 °C | 10 Hz ... 20 kHz: 0.75 dB, 20 kHz ... 100kHz: 1.25 dB, (at -3dB cutoff frequency) |
| Filter attenuation at ambient temperature -40 ... 125 °C | 20 kHz ... 100kHz: 1.25 dB, 10 Hz ... 20 kHz: 0.75 dB, (at -3dB cutoff frequency) |
| DC compensation | 0.8 Hz (lower cut-off frequency -3 db) |
| Attenuation DC compensation at ambient temperature 25 °C | 1 dB |
| Attenuation DC compensation at ambient temp. -40 ... 125 °C | 3 dB |
| Channel LED | The channel LED lights up when there is no measurement signal, Channel LED is flashing yellow during configuration, Displays the color of the selected measurement mode, Channel-LED is activated for 10s after initialization in color of measurementmode, In case of overcurrent of sensor supply |
| TEDS | Class 2 |
| Channel CNT | |
| Measurement mode: Frequency | 0.025 Hz ... 400 kHz |
| Measurement mode: Duty cycle | 0.01 ... 99.99 %, 0.025 Hz (minimum frequency), 10 kHz (maximum frequency) |
| Resolution for Duty cycle | 1.25 µs |
| Measurement modes: Period duration, pulse duration, pause duration | 2.5 µs ... 42 s |
| Resolution for period duration, pulse duration, pause duration | 1.25 µs |
| Measurement mode: Event counter | 0 ... 65535, 0 ... 4294967295, 0 ... 281474976710655, Reset at clock, Reset on overflow, Reset on index signal |
| Measurement mode: Event counter with direction-of-rotation detection (encoder) | -32768 ... 32767, -2147483648 ... -2147483647, -140737488355328 ... 140737488355327 |
| Accuracy at an ambient temperature of 23 °C | 0.025 Hz ... 100 kHz: 0.05%, 100 kHz ... 400 kHz: (0.0000005 * measured value f) %, ±0.0025 % (internal time base) by design |
| Drift bei Umgebungstemperatur -40 … 125 °C | 0.025 Hz ... 100 kHz: 0.055 %, 100 kHz ... 400 kHz: (0.00000055 * measured value f) % |
| Adjustable trigger threshold | ±50 V Resolution 0.20 V, ±5 V Resolution 0.020 V, Auxiliary input IN2 / IN3: On 3.5 V / Off 1.5 V (TTL) |
| Accuracy of trigger threshold at an ambient temperature of 23 °C | ±3 % |
| Accuracy of trigger threshold at ambient temperatures of -40 to 125 °C | ±8 % |
| Excitation | |
| Sensor supply voltage | Unipolar 2.5 / 5 / 7.5 / 10 / 12 / 15 / 24 V, (Derating of maximum current at 85°C) |
| Accuracy supply at ambient temperature 25°C | ±1 % (at 24V) |
| Drift at ambient temperature -40 ... 125 °C | ±20 ppm/K |
| Sensor supply Output current | 70 ... 75 mA (depending on supply voltage combination) |
| Galvanic isolation | |
| Measurement input ↔ Module supply | ±100 V (indefinitely), ±500 V (pulse voltage) |
| Measurement input ↔ CAN | ±100 V (indefinitely), ±500 V (pulse voltage) |
| Measurement input ↔ Housing | ±100 V (indefinitely), ±500 V (pulse voltage) |
| Measurement input ↔ Measurement input | ±100 V (indefinitely), ±500 V (pulse voltage) |
| Measurement input ↔ Sensor supply | ±100 V (indefinitely), ±500 V (pulse voltage) |
| Device | |
| Inputs | 4 |
| Power supply | For On-board power supply of 12 | 24 | 48 V, 6 ... 59 VDC |
| Switching thresholds of the operating voltage | On 9 ±0.3 VDC / Off 6 ±0.3 VDC |
| Power consumption, typical | 3,3 W |
| Operating temperature range | -40 … 125 °C (-40 … 257 °F) |
| Storage temperature range | -55 … 150 °C (-67 … 302 °F) |
| IP protection class | IP 67 (ISO 20653 - 2013) |
| Relative humidity | 5 ... 95 % |
| Operating altitude (above sea level) | max. 5000m |
| Dimensions | L165 mm x B33 mm x H58 mm (L6.50 in x B1.30 in x H2.28 in) |
| Weight | 500 g (1.10 Ib) |
| Configuration interface | CAN FD (ISO 11898-2-2016)) 125kBit/s to 5MBit/s 64 data bytes |
| Data rate | Software adjustable up to 5Mbit/s (ISO11898-2-2016) |
| Input sockets | 001 - Lemo HGG 1B 307 (7-Pin) |
| Status-LED | Yes, Display of the operating status as well as warnings in case of undervoltage or expired calibration |
| Accessories | |
| Module | IPE-COV-M3-001 cover cap, IPE-HWI-M3-001 mounting plate, IPE-HWI-M3-002 mounting plate |
| System cable | 623-500 M3-CAN/PWR cable, SubD9/S term, banana, 623-502 M3-CAN/PWR cable, LOG term, 623-503 M3-CAN/PWR cable, 623-504 M3-CAN/PWR cable, M-CAN/PWR, 623-506 M3-CAN cable, SUB-D/9S term, 623-507 M3-CAN/PWR cable, banana, 623-508 M3-CAN/PWR cable, CAN/PWR 0B-5p., 623-509 M3-CAN/PWR cable, X-LINK/PWR, 623-510 M3-CAN/ cable, ETAS-CAN 1B-8p, 623-511 M3-CAN cable, M-CAN/noPWR M-feed |
| Input cable | 600-858 CNT LEMO 1B7p cable open, 600-857 600-857 CNT LEMO 1B7p cable BNC/P |
