M-CNT3 4

4 digital inputs for capturing digital signals for frequency, count, duration, PWM, and flow measurements

New

Special Features

  • Freely selectable operating modes per input: frequency, event counter, duty cycle (PWM), time delay, speed
  • Up to 3 inputs per channel for quadrature encoders with frequency and direction detection, as well as an index signal
  • Multipoint calibration for linearizing nonlinear sensor signals
  • Additional virtual measurement channels
  • Measurement Data Output via CAN-FD
  • System Status Information (System, Devices, Channel)
  • TEDS Class 2 Support
  • Tool-free, magnetic connection technology
  • Display of channel and device status in the software interface (e.g., monitoring of sensor power supply/undervoltage detection)
  • Wireless system connection → No connection cable required
  • IP 67 and extended temperature range
  • Ultra-compact and rugged design
  • Electrical isolation (channel, CAN, power supply, housing)
  • Channel status LED for each measurement input, displaying the selected measurement mode

Datasheet

Technical data

Channel sampling rates 2 / 5 / 10 min - 1 / 2 / 5 / 10 / 100 / 200 / 500 / 1000 / 5000 Hz
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
Sensor supply voltage Unipolar 2.5 / 5 / 7.5 / 10 / 12 / 15 / 24 V, (Derating of maximum current at 85°C)
Inputs 4
Operating temperature range -40 … 125 °C (-40 … 257 °F)
IP protection class IP 67 (ISO 20653 - 2013)

M-CNT3 4 – Technical data

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General channel properties
Special functions Selectable number of averaging values (1-100)
Internal sampling rate 100 MHz
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 (at -3dB cutoff frequency), 20 kHz ... 100kHz: 1.25 dB, 10 Hz ... 20 kHz: 0.75 dB
Filter attenuation at ambient temperature -40 ... 125 °C (at -3dB cutoff frequency), 20 kHz ... 100kHz: 1.25 dB, 10 Hz ... 20 kHz: 0.75 dB
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, Channel-LED is activated for 10s after initialization in color of measurementmode, Displays the color of the selected measurement mode, 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 %, 10 kHz (maximum frequency), 0.025 Hz (minimum 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 ... 281474976710655, Reset at clock, Reset on overflow, 0 ... 65535, Reset on index signal, 0 ... 4294967295
Measurement mode: Event counter with direction-of-rotation detection (encoder) -32768 ... 32767, -140737488355328 ... 140737488355327, -2147483648 ... -2147483647
Accuracy at an ambient temperature of 23 °C ±0.0025 % (internal time base) by design, 100 kHz ... 400 kHz: (0.0000005 * measured value f) %,  0.025 Hz ... 100 kHz: 0.05%
Drift bei Umgebungstemperatur -40 … 125 °C 100 kHz ... 400 kHz: (0.00000055 * measured value f) %, 0.025 Hz ... 100 kHz: 0.055 %
Adjustable trigger threshold ±50 V Resolution 0.20 V, Auxiliary input IN2 / IN3: On 3.5 V / Off 1.5 V (TTL), ±5 V Resolution 0.020 V
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 (Derating of maximum current at 85°C), Unipolar 2.5 / 5 / 7.5 / 10 / 12 / 15 / 24 V
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-HWI-M3-001 mounting plate, IPE-HWI-M3-002 mounting plate, IPE-COV-M3-001 cover cap
System cable 623-508 M3-CAN/PWR cable, CAN/PWR 0B-5p., 623-503 M3-CAN/PWR cable, 623-502 M3-CAN/PWR cable, LOG term, 623-509 M3-CAN/PWR cable, X-LINK/PWR, 623-507 M3-CAN/PWR cable, banana, 623-504 M3-CAN/PWR cable, M-CAN/PWR, 623-500 M3-CAN/PWR cable, SubD9/S term, banana, 623-511 M3-CAN cable, M-CAN/noPWR M-feed, 623-506 M3-CAN cable, SUB-D/9S term, 623-510 M3-CAN/ cable, ETAS-CAN 1B-8p
Input cable 600-858 CNT LEMO 1B7p cable open, 600-857 600-857 CNT LEMO 1B7p cable BNC/P

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