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Single Loop Controller With Relays iTRON

The iTRON controller series comprises universal and freely programmable compact instruments for a variety of control tasks. It consists of five models, with the bezel sizes 96mm x 96mm, 96mmx 48mm in portrait and landscape format, 48mm x 48mm and 48mm x 24mm.
The controllers feature a clearly readable 7-segment display which, depending on the version, is 10 or 20 mm high, for process value and set point indication or for dialogs. Only three keys are needed for configuration. Parameter setting is arranged dynamically, and after two operation-free seconds the value is accepted automatically. Self-optimization, which is provided as standard, establishes the optimum controller parameters by a key stroke. The basic version also includes a ramp function with adjustable gradients. A timer function has been integrated as an extra.
All controllers can be employed as single-set point controllers with a limit comparator, or as double-set point controllers. The linearizations of the usual transducers are stored. Protection is IP65 at the front and IP20 at the back. The electrical connection is by a plug-in connector with screw terminals.

Benefits Specifications Technical Documentation

Structured operating and programming layout
Proven self-optimization
Ramp function
Timer function
Digital input filter with programmable filter time constant
1 limit comparator

Benefits

Structured operating and programming layout
Proven self-optimization
Ramp function
Timer function
Digital input filter with programmable filter time constant
1 limit comparator

Specifications

Technical Data

Relay Rating Contact life	n.o. (make) contact 3A at 250VAC resistive load 150 000 operations at rated load
Logic Current limiting Load resistance	0/5V 20mA R load 250 min
Logic Current limiting Load resistance	0/12V 20mA R load 600 min

Controller

Controller type	single-setpoint controller with limit comparator, double-setpoint controller
Controller structures	P/PD/PI/PID
A/D converter	resolution better than 15 bit
Sampling time	210msec/250msec with activated timer function

Electrical Data

Supply (switch-mode power supply)	110 —240V -15/+10%AC 48 —63Hz, or 20—53V AC/DC 48—63Hz, or 10—18V DC
Test voltages (type test)	to EN 61 010, Part 1, March 1994, over voltage category II, pollution degree 2, for Type 702040/41 over voltage category III, pollution degree 2, for Type 702042/43/44
Power consumption	max. 5VA
Data backup	EEPROM
Electrical connection	at the rear, via plug-in screw terminals, conductor cross-section up to 1.5mm 2 (1.0mm2 for Type 702040/41) or 2x 1.5mm2 (1.0mm2 for Type 702040/41) with ferrules
Electromagnetic compatibility	EN 61 362, NAMUR recommendation NE21 (as per May 1993)
Safety regulation	to EN 61 010-1

Technical Documentation

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Single Loop Controller With Relays iTRON

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