User Guide

Operating Instructions αlpha-RES1000

4 Overview

4.1 Keypad and Display

4.1.1 Keypad

•

Perform rapid calibration

•

Allows entry to Set up mode

• Select individual functions within the function group of Set up mode

• Store input data in the Set up mode

• Start calibration in the calibration mode

•

Select various function groups in the Set up mode.

• Set parameters and numerical values in sub functions of Set up mode

If pressed continuously, the setting speed increases

• Control the relays in the MANUAL function

• Return to the Measurement mode when both keys are pressed together

•

Switch between AUTO and MANUAL relay operation using a code

•

Display set-point values for the switch contacts in AUTO operation mode

• Switch between RELAY A and RELAY B in MANUAL relay operation mode

4.1.2 Display

The LCD display features two numerical displays that show status messages and measured values for

easy, quick reference. The display provides short-text information for setting parameters and

configuration.

• HOLD: Relay position and current output are frozen

• SETUP: Set-up mode of function groups

• MEAS: Measurement mode

• CAL: Calibration mode of Resistivity

• READY: Comes on after a successful calibration

• ATC: Comes on in the ATC mode. Disappears in the

Manual temperature Compensation mode. “ATC” flashes

if the temperature probe is faulty in its ATC mode

• Range No.: Indicates the measurement range selected

•

Display for RELAY A/B. Green LED indicates measured value within limit while

RED LED indicates measured value outside limit.

• Alarm display if limit value overshoot or the ATC connection is broken.

-8.8.8.8

1.8.8.8

ATC

HOLD SETUP MEAS CAL

READY

mΩ