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Article: 708500
Intrinsic Zener diodes Category 2 Safety Barrier (Zone 1 or Zone 2)
The TSB-31 is an intrinsic safety barrier which allows to avoid the high voltages and to secure the transmission of the signals in explosive environments.
Four safety barriers have been developed:
TSB-31.1 10V100mA: specially designed to protect the lines of communication RS-232, it can also be used to transmit the analog and digital signals.
Usable in zone 1 or in Ex zone 2, the barrier TSB 31.1 allows, for example, an application with a gas volume corrector.
TSB-31.2 10V100mA: this barrier has the same utility as TSB 31.1 but it is a category 3 and can be only used for Ex zone 2.
TSB-31.2 10V20mA: specially designed to provide the connection with meters having a SCR interface (GWF Coder), installed in Ex zone 2.
TSB-31.2 16V110mA: this barrier can read 4-20mA probes in Ex zone 2.
The TSB is planned for signals: RS-232 (PC), RS-485, RS-422, analog, digital and impulse.
The main function is to reduce the voltage and the electric current by the barrier's output to connect a sensor, a gas volume corrector or a meter in complete safety. The current passes through a fuse, resistances and diodes ensuring a maximum of 10V (depending on model) to the output.
The barrier can assure the connection towards meters and electric devices situated in EX zone 1 or 2.
Type | Description | Language |
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Datasheet | English |
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Flyer TSB | Français |
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Flyer TSB | Deutsch |
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Flyer TSB | English |