Instruction manual

Instruction Manual αlpha CON 2000

2 PRODUCT DESCRIPTION

2.1 Description of unit

The Eutech Instruments αlpha CON 2000 is used for measuring conductivity and temperature

values. The conductivity values can be measured using limit or P/PI control. The transmitter is

available in two versions, one for panel mounting and one for wall mounting in a enclosure.

The transmitter can be used for applications such as water treatment and monitoring,

galvanic-decontamination, chemical processing, food processing, clean or wastewater control

and neutralisation processes.

This transmitter has many user-friendly and safety features which include:

• Menu-driven program that simplifies set-up.

• Built-in non-volatile memory to ensure that calibration and other information are not

erased if power supply fails.

• Push-button for calibration and sensor offset adjustment from the keypad.

• Automatic temperature compensation (ATC).

• Manual temperature compensation setting without the ATC probe, with independent

setting for calibration and process temperature.

• Two galvanically isolated current outputs 0/4...20mA.

• 0 to 2000 seconds time delay adjustment on all relays – minimises false alarms.

• Separately adjustable high and low set-point hysteresis (dead bands) prevent chattering

of relays around the set points.

• Three control modes: limit controller, P controller and PI controller (P/PI controller as

pulse length or pulse frequency).

• Large dual display LCD for easy reading with clear multiple annunciators, alarm status,

operational and error messages.

• Two switching contacts as set-point relays.

• Separate alarm relay alerting you to set point limits exceeded for a certain time and if the

Pt100/Pt1000 wires are broken or disconnected during the ATC function.

• Wash relay.

• Hold function to freeze output current (0/4...20mA) and release control relays.

• LED indicators signal control activities to visually monitor transmitter status from a

distance.

• Protection against electromagnetic interference. ( Available for panel mount only)

• Back lit and UV light protected LC display.