PRESYS | Instruments TY - 2090
Page 1
1 - Introduction
1.1 - Description
The PRESYS TY-2090 Transmitter is a microprocessor-based instrument which
receives any process variable found in industrial plants as: temperature, pressure, flow,
level, etc. It has non-volatile internal memory (E2PROM) for storing calibration values.
It can communicate with computers through the optional Communication Module
RS-232 or RS-422/485.
The Transmitter is capable of monitoring two
universal standard inputs, accepting direct connection of
thermocouples, RTDs, current (mAdc) and voltage
(mVdc and Vdc). The thermocouple and RTD inputs are
automatically linearized by means of tables stored in the
EPROM memory. A 24 Vdc voltage source, output-
isolated and with short circuit protection, is provided to
power the standard field two-wire transmitters.
The type of input chosen by the user is enabled by
jumpers and by configuration via software. All
configuration data can be protected by a password
system, and are stored in the non-volatile memory in
case of power failure.
The Transmitter has been designed with basis on
modularity concept and accepts up to 4 output cards.
The possible output types are: analog, SPDT relay, solid-
state relay and open collection voltage. Outputs are
electrically isolated from inputs.
Fig. 1 - Front view of
TY-2090 Transmitter
It allows universal power supply from 90 to 240 Vac.
The instrument is housed in an extruded aluminum case which makes it highly
immune to electrical noise, electromagnetic interference, and resistant to the most severe
conditions of industrial usage.
