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720243 SENT Monitor Module

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The Yokogawa 720243 is a SENT monitor module designed for decoding and analyzing automotive sensor signals based on the SAE J2716 standard. With up to eight multiplexed channels, it provides a dependable solution for evaluating modern automotive sensor systems.
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  • High-Speed SENT Decoding: Supports SAE J2716 SENT protocol with fast-channel, slow-channel, status/communication nibble, and error data monitoring for comprehensive sensor analysis.
  • Dual Isolated Inputs: Two isolated SENT input ports support accurate signal capture without ground interference, providing a stable interface for automotive sensor evaluation.
  • Fast-Channel Multiplexing: Enables up to eight channels through fast-channel multiplexing, with additional support for slow-channel and communication data for complete system validation.
  • Robust Input Protection: Handles up to 42 V input and includes built-in LED indication for valid signal detection and overdrive conditions, ensuring safe and reliable operation.
SENT Monitor Module (720243)
Item Specifications
Standard operating conditions Ambient temperature: 23 to 5 °C
Ambient humidity: 20 to 80 % RH
Number of input ports 2
Maximum data update rate 100 kS/s (10 µs)
Input type Isolated unbalanced
Input connector BNC connector (isolated type)
Input impedance 1 MΩ ±1 %, approx. 35 pF
Supported protocols SAE J2716
Supported clock tick span 1 µs to 100 µs, resolution: 0.01 µs
Supported number of nibbles 1 to 8
Number of analysis sub channels 8 channels total including fast channels and slow channels
Fast Channel: Up to 8
Slow Channel: Up to 5
Status & Communication: 1 ch (4 bit)
Error trigger: 1 ch (5 bit)
Error count: 1 ch
Fast channel analysis function Handles fast channel multiplexing
Low level input voltage 1.5 V (typical value1)
High level input voltage 3.5 V (typical value1)
Maximum input voltage
Combined with the 700929 (10:1) or 702902 (10:1)2 420 V (DC+ACpeak)
Combined with the (701901 + 701954) (1:1) or direct input (cable that does not comply with the safety standards)4 42 V (DC+ACpeak)
Maximum rated voltage to ground – between input and case and between inputs Working voltage of safety standard
42 V (DC+ACpeak) (CAT II, 30 Vrms)
Input status indication function Input status indication through the LEDs of each port function
When in operation: Illuminates in green when pulse input is detected
When overdriven: Illuminates in red when the input voltage exceeds 20 V
Probe attenuation settings 10:1, 1:1
Wiring / measurement points Wiring diagram for measurement points 2 to 5: combined with the 700929 or 702902; combined with the 701901 + 701954 or direct input (cable that does not comply with the safety standards)

1. Typical values represent typical or average values. They are not strictly warranted.

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