We are pleased to announce that the VPFlowScope electronics platform has been upgraded providing more robust protection against static discharges and short-circuiting. We implemented a new, ultra-robust Modbus transceiver circuit, which can hold up to ±60V on A and B lines. It can also allow a larger common mode range of ±24 Volts, which makes biasing of your RS485 network less critical. This transceiver was already in use in the VPFlowScope M and has now been integrated into the complete VPFlowScope product line, including the VPFlowScope Probe, DP, and In-line.
- Protection from overvoltage line faults up to ±60V
- ±15kV ESD interface pins
- Extended common mode range: ±24V
- Guaranteed failsafe receiver operation
In many industrial devices, for example, compressor controllers and sensors, RS485 transceivers are easily blown by static discharges, especially when connecting wires for the first time without any protection. Therefore, static protection is very important. We also experienced that one of the most common wiring errors is to reverse data and power lines. Connecting the 24V power supply across the data lines of any traditional RS485 port will result in the transceiver chip going up in smoke, which means the end of your VPFlowScope.
At VPInstruments, we continuously strive to improve the quality of our products, to make them more reliable, and easier to use over time. That’s also a way to provide easy insight into energy flows.
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