TEMPERATURE CONTROL
Mod. TC/EV including PID controller
Mod. TCf/EV with free signals
Mod. TCx/EV including PID controller,
with free signals
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INTRODUCTION
This compact unit of easy handling enables to carry out several
tests of temperature control on a closed circuit for hot water.
A centrifugal pump makes the hot water recirculate from the
heating tank to a plate-type exchanger cooled by tap water.
Temperature is measured by a thermoresistance and it is
controlled by a pneumatic valve inserted in the inlet line of cold
water; a delay pipe can be inserted in the circuit to vary the
system dead time.
This unit is available in three versions:
INDUSTRIAL PROCESS CONTROL
• Mod. TC/EV, including an industrial PID controller
• Mod. TCf/EV, with free-signal connections; the unit can be
connected with the external control box mod. PID/EV and
PLC-8CH/EV, or with customers’ control unit
• Mod. TCx/EV, including an industrial PID controller and with
free signals.
The units mod. TC/EV and TCx/EV are also provided with a
control and data-acquisition software (SCADA) for Windows
that enables the supervision of the system from a PC connected
via the serial cable of the equipment.
TRAINING PROGRAM:
This unit enables to develop and analyze the following subjects:
• Proportional, Integral and Derivative control
• Open-loop control
• Closed-loop control
• Tuning techniques of a controller
• Response to a noise
• Effect of dead time on control parameters
25C-E-UN-TC-1
ELETTRONICA VENETA S.P.A. - 31045 Motta di Livenza (TV) Italy - Via Postumia 16 - Tel. +39 0422 765 802 - Fax +39 0422 861 901 - E-mail: export@elettronicaveneta.com UN 8
TECHNICAL CHARACTERISTICS:
• Framework of AISI 304 stainless steel with castors
• Tank of borosilicate glass with capacity of 20 litres
• Electric resistor, P = 3 kW
• Plate-type exchanger of AISI 304 stainless steel with
exchange surface of 0.2 m²
• Centrifugal pump with case and rotor of AISI 304 stainless
steel, Qmax = 3 m³/h, Hmax = 30 m
• Pneumatic control valve of AISI 316 stainless steel, Cv = 2.5
• Pt100 thermoresistance with sheath of AISI 316 stainless
steel
• Electro-pneumatic converter, 4 to 20 mA / 0.2 to 1 bar
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• Switchboard IP55 including plant synoptic and ELCB
• Piping and valves of AISI 304 and 316 stainless steel
• This unit can be connected in series with modules mod.
FC/EV and mod. LC/EV for the simultaneous control of
temperature, flow rate and level
• Only for mod. TC/EV: electronic microprocessor PID
controller with 4-line Liquid-Crystal Display (LCD) and serial
card, mounted on the switchboard
• Only for mod. TCf/EV: connection panel for external control
devices
• Only for mod. TCx/EV: electronic microprocessor PID
controller with 4-line Liquid-Crystal Display (LCD) and serial
INDUSTRIAL PROCESS CONTROL
card, mounted on the switchboard, and connection panel for
external control devices
Power supply: 230 Vac 50 Hz single-phase - 4 kVA
(Other voltage and frequency on request)
Dimensions: 1350 x 600 x 1600 mm
Weight: 115 kg
REQUIRED
UTILITIES (PROVIDED BY THE CUSTOMER)
• Compressed air (female valve of ¼”): 4 Nm3/h @ 6 bar max.
• Tap water (valve with ½” hose connector):
1000 l/h @ 2 bar max.
• Water drain
ACCESSORIES (NOT INCLUDED)
• Personal Computer running Windows
ACCESSORIES FOR MOD. TCf/EV:
• Control box with PID controller, mod. PID/EV
• Control box with PLC, mod. PLC-8CH/EV
SUPPLIED WITH
THEORETICAL-EXPERIMENTAL
HANDBOOK
25C-E-UN-TC-1
OPTIONAL
TWO-PEN RECORDER
(only for mod. TC/EV and TCx/EV: it must be installed before
shipment, not as upgrade)
UN 9 ELETTRONICA VENETA S.P.A. - 31045 Motta di Livenza (TV) Italy - Via Postumia 16 - Tel. +39 0422 765 802 - Fax +39 0422 861 901 - E-mail: export@elettronicaveneta.com
