TV 500 and ST 500 are two isolation amplifiers from Bosch Rexroth. They can convert 4.20mA signals to 2.10V signals and can simultaneously output 4.20mA and 2.10V signals. They can also convert 0/4.20mA and 0/2.10V signals to 2.10V signals. Their rated voltage is 100-265V AC or 10.8-30V AC/DC, and their rated current is 250mA. They have a 22.5mm standard housing that can be mounted on a rail.
This document provides technical specifications for the Martens Elektronik Universal Signal Isolators (TV 500) and Sensor Separators (ST 500). These devices are designed for potential separation or signal conversion of standard signals such as 4...20 mA and 0...10 V DC. The ST 500 variant additionally supports the direct connection of active two-wire and three-wire sensors via an integrated power supply. This manual is written in German.
| Auxiliary Voltage (AC) | 100... 265 V AC |
|---|---|
| Auxiliary Voltage (DC) | 10.8 ... 30 V AC/DC |
| Output Current Load | Max. 1 kOhm burden |
| Standard Transfer Frequency | Max. 18 Hz (tg0<20 ms) |
| High Speed Transfer Frequency | Max. 1 kHz (tg0<100 us) |
Yes, inputs and outputs can be switched on the front via a DIP switch between 0...20mA/4...20mA or 0...10V/2...10V.
A special version with a maximum frequency of 1 kHz (response time <100 us) is also available.