Preliminary Examination; General Description - Hanna Instruments HI8510 Instruction Manual

PRELIMINARY EXAMINATION

Remove the instrument from the packing material and examine 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.
Each model is supplied with:
• Transparent Splash‑proof Front Cover
• Mounting Brackets
• Instruction Manual
Note: Save all packing materials until you are sure that the instrument
functions correctly. All defective items must be returned in
the original packing materials together with the supplied
accessories.

GENERAL DESCRIPTION

HI8510 and HI8512 pH and ORP panel‑mounted indicators, and
HI8710, HI8711 and HI8720 pH and ORP controllers, are ideal for
process control monitoring in a wide range of industrial applications.
These instruments have been designed for easy and fast installation,
and are provided with membrane keypads on the front panel, large
display and autodiagnostic functions.
All connections are made through screw terminals on the rear panel.
Each model accepts either a direct input from a pH or ORP electrode
or from a transmitter through 4‑20mA input. The instrument also
provides ±5V power output and input terminals for amplified
electrodes.
Moreover, you can choose the output configuration for connecting a
recorder or a PLC, between 0‑20 or 4‑20 mA.
Note: In order to avoid damages and erroneous readings:
• do never connect more than one electrode type (BNC,
amplified or input transmitter) to the instrument.
• do never use both the 0‑20 mA and 4‑20 mA recorder outputs
at the same time.
Other features include over time control function, selection of the dosing
direction (ACID, ALKALINE ‑ HI8710; OXID, REDUC ‑ HI8720) and the
possibility to set dosing action mode (OFF/AUTO/ON).
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