User Guide

6
PRELIMINARY EXAMINATION
Remove the instrument from the packing material and exam-
ine it carefully to make sure that no damage has occurred
during shipping. If there is any noticeable damage, notify
your Dealer or the nearest Hanna Customer Service Center
immediately.
Note Save all packing materials until you are sure that the instru-
ment functions correctly. Any damaged or defective items must
be returned in their original packing materials together with
the supplied accessories.
GENERAL DESCRIPTION
The product is a real time microprocessor-based pH/ORP
controller. It provides accurate measurements, flexible
control capabilities and dual alarm signals.
The system is composed of a case inside which the signal
conversion circuitry, the microprocessor circuitry and the output
power drivers are contained.
MAIN FEATURES
• Configurations: for measure and control of pH or ORP, with
two separate sets of control settings. Thus no loss of settings
occurs when changing from pH to ORP and vice versa.
• Display: large LCD with 4 ½ 17 mm digits and 3 ½ 10 mm
digits.
• LEDs: a green LED (alarm relay) and a red LED for signaling
the device status.
• Alarm relay: one output relay for alarm condition (fail safe
mode: COM and NC are connected).
• Daily programmable control timing.
• Diagnostic features.
• pH/ORP probe check.
• Temperature sensor (Pt100 or Pt1000 type) with automatic
recognition and damage test.
• Hold management, including hold digital input to enter
hold mode with an external trigger.
• Logging of the last 100 error, configuration, calibration and
cleaning events.