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PRELIMINARY EXAMINATION
GENERAL DESCRIPTION
MAIN FEATURES
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, please
contact your local Hanna Instruments Office .
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 .
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 .
• 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 signal-
ing 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 .
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