QUICK REFERENCE GUIDE
HI520 Universal Process Controller
Multiparameter Platform
HI520 Universal Process Controller Multiparameter Platform
Dear Customer,
Thank you for choosing Hanna Instruments.
For more information about Hanna Instruments and our produce visit www.hannainst.com or e-mail us at sales@hannainst.com For technical support, contact your local Hanna Instruments of for e-mail us at tech@hannainst.com.
http://manuals.hannainst.com/HI520
Please scan the QR code or use the link below to download the user manual. https://manuals.hannainst.com/HI520
Available Models
 |  |
| HI520-0320 3 relays & 2 analog outputs | HI520-0540 5 relays & 4 analog outputs |
Package Contents
- HI520
- Cable gland seals (1 set)
- Power cable, 3 m (9.84’) long
- Quick reference guide
- Instrument quality certificate
Note: Save all packing material. Any damaged or defective item must be returned in its original packing material with the supplied accessories.
Main Features
- Hanna Instruments smart digital probes
- Modbus RS-485 serial communication protocol
- Independent / sequential channel control
- Flexible function assignment for control, cleaning, Hold relays
- Waterproof IP65 enclosure
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.
Connecting to Power
- 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.
- Remove the safety cover to access Terminal 1 block (power path).
- Remove the blank plug and thread the cable through the power cable gland.
- Connect the power cable leads to the removable terminal connector marked POWER.
- Follow L (live), PE (ground), N (neutral) lead markings for correct wiring of output leads.
- Carefully put wired terminal connector into place on the board.
- Replace safety cover over Terminal 1.
Controller Wiring
- High voltage connections: POWER, ALARM, REL 1 to REL 5 (relays) are made to the Terminal 1 block.
- Low voltage connections: COMM (RS-485), PROBE1, IN1 and IN2 (digital inputs), A01 to A04 (analog outputs), and PROBE2 are made to the raised Terminal 2 block.
- Follow the positive/negative lead markings to ensure that output leads are wired to the correct position on the main board.
Hanna Instruments is committed to developing and deploying digital solutions with a positive impact on the environment and climate.
All Hanna instruments conform to the CE European Directives, and our production facilities are ISO 9001 certified. HI520 is warranted for a period of t wo years against defects in workmanship and materials when used for its intended purpose and maintained according to instructions.
Please retain for future use. QR520 07/25
Probe Wiring
- Ensure the controller is not powered.
- Run the probe cable through the conduit opening.
- Connect probe leads to the removable terminal connector marked PROBE1 or PROBE2.
Follow the lead markings (positive / negative) for correct wiring. - Carefully put the wired terminal connector into place on the board.
- Position excess cable through the cable gland before tightening the nut.
- Remove the ground screw and hardware located below the PROBE1 or PROBE2 connector. Attach the ground lead (
). Probe cabling color code
| Probe | Marking | Attached Cable | Patch Cable | Function |
| pH, ORP, EC, DO | – | GREEN | BLACK | 0 V |
| B | WHITE | WHITE | RS485 D – | |
| A | YELLOW | BLUE | RS485 D+ | |
| + | BROWN | RED | 5 V | |
| g | GREEN-YELLOW | GREEN-YELLOW | PROTECTIVE GROUND | |
| Turbidity (TU) | – | GREEN | Note: Ensure wiring regulations are correctly followed when controller unit is part of a larger industrial installation. | |
| B | WHITE | |||
| A | YELLOW | |||
| + | BROWN | |||
| g | GREEN-YELLOW | |||
Accessories
Installation accessories can be ordered from your local sales office.
Scan the QR codes to download probes user manuals.
Probe Series and Configurations
| HI10 | X | X | – | Y | 8 | Z | Z | pH & Temperature | ||
| XX | 06 | PTFE junction | ||||||||
| 16 | Ceramic junction | |||||||||
|
Y | Glass sensor | Titanium Matching Pin | pH range | Temperature range | ||||||
| 1 | Low temperature | 0.00 to 12.00 pH | –5.0 to 80.0 °C (23.0 to 176.0 °F) | |||||||
| 3 | High temperature | 0.00 to 14.00 pH | 0.0 to 100.0 °C (32.0 to 212.0 °F) | |||||||
| 4 | Fluoride resistant | 0.00 to 10.00 pH | –5.0 to 60.0 °C (23.0 to 140.0 °F) | |||||||
| HI20 | X | X | – | Y | 8 | Z | Z | ORP & Temperature | |||
| XX | 04 | PTFE junction | |||||||||
| 14 | Ceramic junction | ||||||||||
| Y | Sensor type | mV range | Temperature range | ||||||||
| 1 | Platinum | ± 2000 mV | –5.0 to 100.0 °C (23.0 to 212.0 °F) | ||||||||
| 2 | Gold | ||||||||||
| HI20 | X | X | – | Y | 8 | Z | Z | ORP & Temperature | |||
| XX | 04 | PTFE junction | |||||||||
| 14 | Ceramic junction | ||||||||||
| Y | Sensor type | mV range | Temperature range | ||||||||
| 1 | Platinum | ± 2000 mV | –5.0 to 100.0 °C (23.0 to 212.0 °F) | ||||||||
| 2 | Gold | ||||||||||
| HI7640 – | 5 | 8 | Z | Z | Optical DO & Temperature |
| Optical DO sensor | Concentration 0.00 to 50.00 mg/L (ppm) Saturation 0.0 to 500.0 % Temperature –5.0 to 50.0 °C (23.0 to 122.0 °F) | ||||
| 8 | Smart probe, with RS-485 connection |
| ZZ | 00 supplied with DIN connector (without cable) 05, 10, 15, 25, 50 fixed cable length (in meters) 02, 05, 10 fixed cable length (in meters) › HI7660-28 TU probe only |
Hanna Instruments Inc., 584 Park East Drive, Woonsocket, RI 02895 USA
www.hannainst.com
Documents / Resources
 | HANNA Instruments HI520 Universal Process Controller Multiparameter Platform [pdf] User Guide HI520-0320, HI520-0540, HI520 Universal Process Controller Multiparameter Platform, HI520, Universal Process Controller Multiparameter Platform, Controller Multiparameter Platform, Multiparameter Platform, Platform |