Hanna Instruments Inc., 584 Park East Drive, Woonsocket, RI 02895 USA www.hannainst.com
HI520 Dual-Channel Universal Process Controller
Quick Reference Guide
HI510-02 wall mount
HI510-01 panel mount
Hanna is committed to developing and deploying digital solutions
with a positive impact on the environment and climate.
Scan the QR code or follow the link to download the user
manual. https://manuals.hannainst.com/HI520
HI520-0320
3 relays & 2 analog outputs
HI520-0540
5 relays & 4 analog outputs
Package contents
• HI520 controller
• Cable gland seals (1 set)
• Power cable, 3 m (9.84’) long
• Instrument quality certificate and quick reference guide
Note: Save all packing material. Any damaged or defective item must
be returned in its original packing material with the supplied accessories.
Controller models
Dear Customer, thank you for choosing Hanna Instruments.
HI520 is a universal process controller intended for applications where
simultaneous measurement and control of process variables is needed.
Main features
• Hanna Smart digital probes
• RS-485 / Modbus serial communication protocol
• Independent / sequential channel control
• Flexible function assignment for control, cleaning, Hold relays
• IP65 / NEMA 4X protection
• Wall, pipe, panel mounting kit (sold separately)
Safety precautions
• Electrical connection must be carried out by specialized personnel
only. Read safety manual instructions before connecting to power.
• Do not make electrical connections with device connected to power.
• Do not run other cables through the designated power cable gland.
• Have a disconnect switch installed in the vicinity of the instrument
to ensure electrical circuit is de-energized for installation.
Opening the enclosure
• Loosen the four screws, enough for the springs to push them out.
• Grasp the front bezel and swing open to access the two-
terminal power supply board.
Connecting to power
• Remove the blank plug and thread the cable through the power
cable gland.
• Remove the safety cover to access high voltage Terminal 1.
• Connect the probe leads to the terminal connector POWER.
Follow lead markings for correct wiring on the supply
board. Each leads location is marked.
• Ensure the power connector is seated correctly in the power socket.
• Replace safety cover over Terminal 1.
Power cable
SIGNAL
PATH
POWER
PATH
Blank plug
Probe accessories (sold separately)
Saddle
BL120-5XX
Flow cell
BL120-4XX
Immersion electrode holders
HI60501 HI60503
HI510-03 pipe mount
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