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Dual-Channel Universal Process Controller – HI520

1,100.00  + PVM

HI520 is Hanna’s first dual-input process controller that accepts virtually any combination of compatible probes.

SKU: HI520 Category:

Available on backorder - This item may take 2-3 weeks to deliver.

HI520 is Hanna’s first dual-input process controller that accepts virtually any combination of compatible probes. Designed to adapt to unique process control requirements, users have the option to enable or disable each channel independently.

Additionally, HI520 introduces enhanced industrial control by operating a control-loop system whereby users have the option to run channel control either independently or configure to be triggered sequentially upon reaching the other channel’s set point(s) (1, 2, or both). The device operates a logical channel with built-in mathematical functions. This function is intended for when the controller works as an analyzer for monitoring high/low parameter levels between two identical inputs with identical measuring configurations.

These Universal Process Controllers offer wall, pipe, and panel mounting options and feature a large backlit dot matrix display for easy viewing and provide an intuitive interface for setup options. The controllers utilize multi-color LEDs for easy viewing of the instrument’s status including relay activation, in alarm mode, or in hold status. All programming operations are done through the low profile vulcanized rubber keypad or with an RS485 connection to a Modbus-compliant supervisory computer.

  • Waterproof IP65 (NEMA 4X) enclosure
  • Large backlit LCD
  • Multi-color LED status indicators
  • Audible alarm
  • Tactile rubberized keypad
  • Universal mounting
  • Universal Hanna digital probe

 

Features Displayed on Screen

LCD Information

Local visual indicators of measurement details as well as errors are displayed. The ? DIAG key provides details of the issue.

Hold Function

During calibration, cleaning, and configuration the controller automatically goes into Hold mode. During Hold mode all control loops related are disabled. The analog outputs may be configured to go to a fixed value or remain at the last value. The Hold function can also be triggered manually, using an external digital input or by entering in Manual mode. This is useful for disabling control when performing maintenance.

DIAG – Help and Diagnostic Key

The help and diagnostic key (? DIAG) provides information related to errors; or in setup mode, information about settings.

Control Modes

The control mode can be configured to be On/Off, Proportional, or PID. The mode can be set high or low. High control mode is required if the process value is too high and needs to be decreased. Low control mode is required if the process value is too low and needs to be increased. For On/Off control, the hysteresis band is adjustable, while in Proportional and PID modes, deviation, control period, and other tuning parameters can be set to optimize control around a set point. For HI520, each channel can run control independently or sequentially

Auto-Cleaning Cycle

Difficult applications often require an almost continuous maintenance of the probe. Processes with high-suspended solids, fats, oils, pigments, and microorganisms will coat the pH sensing glass, ORP sensors, and the reference junction. The cleaning function allows programming of one or more wash cycles and uses the relays to activate valves, pumps or compressed air based on the type of washing that is required to maintain probes for reliable results.

Configurable Alarm System

The alarm system is configurable for measured parameters. The alarm can also be activated by event triggers or abnormal operation. For example, if a dosing relay remains closed for an excessive period of time or if temperature exceeds an upper limit during an exothermic neutralization reaction. A blinking red LED signals an alarm state. All relays configured for control are inactivated until the alarm state is resolved. On HI520 use channel configuration to setup and trigger an alarm

 

Inputs and Outputs

Digital Inputs
  • Two digital inputs for remotely triggering, cleaning and hold functions.
Analog Outputs
  • Up to 4 analog outputs and 5 relays used for control and for sending a signal to data loggers, PLC, SCADA and other remote monitoring systems
  • 0-20 mA or 4-20 mA
  • Scalable in selecting values for the range
  • Can be used for control of pumps and valves
  • On alarm state can output a 22 mA signal to the monitoring system
Digital Communication
  • The Modbus-compliant unit can be integrated within a Modbus based network and connected to other industrial electronic devices. The following tasks may be accomplished remotely:
    • Monitoring, using the virtual LCD (limited to a single remote control in the entire network)
    • Setup
    • Loading the Setup configuration file to a controller
  • RS485 Digital output for PC and other device connectivity
Relays
  • Up to 5 control and 1 alarm electromechanical relays
  • Replaceable 5A fuses to protect all relays
  • Extractable terminal blocks for easy wiring
  • Relay options include single pole double throw (SPDT) and single pole single throw (SPST)
  • Control relays can be programmed for On/Off, Proportional, or PID control as well as Cleaning and Hold functions
  • Configurable alarm relay
  • Relays terminal blocks and their wires paths are separated from the low voltage section for additional safety

 

Data and Event Logging

Automatic Data-logging

HI510 and HI520 have built-in data logging that stores data at selectable intervals along with relay control settings and calibration data.

  • Data stored in up to 100 lots with each holding 8600 records
  • Selectable log interval: from 10 seconds to 3 hours
  • Logged Data includes:
    • Measured values and alarms for all supported parameters
    • Calibration information including solutions used. For pH, the offset and slope is recorded.
Event Log

The Event Log file can hold a maximum of 100 events. It includes errors, alarms, warnings, calibration events, configuration changes, and cleaning events.

Password protection

The controllers feature password protected calibration and setup

 

Specifications

Specifications HI520
Channels 2
Display Graphic LCD, 128 x 64 pixel B/W with backlight
Digital Inputs 2 independent, galvanically isolated inputs (configurable for Hold & Cleaning functions) On state: 5 to 24 Vdc, low or high level active
Analog Outputs 2 or 4 independent, galvanically isolated outputs
0 – 22 mA configurable as:
0 – 20 mA; 4 – 20 mA
22 mA as alarm signal, configurable option
Analog Output Accuracy ±0.2% f.s.
Digital Communication RS485 serial port – Remote monitoring and control USB-C port – Retrieve log files and firmware upgrading
Relays Up to 5 relays (independently configurable for process variables, Hold & Cleaning functions)
Electromechanical relay SPDT and SPST contact outputs
5A – 250 Vac; 5A – 30 Vdc (resistive load)
Fuse protected: 5A, 250V slow blow fuse
Alarm Relay for All Measurement Alarms Electromechanical relay SPDT contact output
5A – 250 Vac; 5A – 30 Vdc (resistive load)
Fuse protected: 5A, 250V slow blow fuse
Data Logging Interval log, up to 100 files, maximum 8600 records on each stored file. When the maximum limit of 100 stored files is reached,
the most recent file will automatically erase the oldest one.
Event log, maximum 100 records. When the maximum limit is reached, the last record overwrites the oldest one.
Power Supply 100 – 240 Vac ±10%; 50/60 Hz; 15VA; fuse protected (2A, 250V slow blow fuse)
Power Consumption 15VA
Installation Category II
Environment -20 to 50 ºC (-4 to 122 ºF); maximum 100% RH non-condensing
Enclosure* Single case ½ DIN, type 4X, IP65 ingress protection
Weight Approximately 1.6 kg (3.5 lb.)
Dimensions Width: 144.0 mm (5.7”) Height: 144.0 mm (5.7”) Depth: 151.3 mm (6.0”)
Ordering Information HI520-0540 universal process controller with 5 relays and 4 analog outputs is supplied with 3m power cable, cable gland set,
instrument certificate, and quick reference guide with instructions for manual download.
HI520-0320 universal process controller with 3 relays and 2 analog outputs is supplied with 3m power cable, cable gland set,
instrument certificate, and quick reference guide with instructions for manual download.
Accessories HI76510-10 patch cable, 10 m (32’9”) HI76510-15 patch cable, 15 m (49’2”), HI76510-25 patch cable, 25 m (82’) , HI76510-50 patch cable, 50 m (164’)

* For a water tight seal: Gland seals need to be used over cables and the four screws on the front casing need to be tightened to 13.3 lbf·in (1.5 N·m, maximum 2.0 N·m), of torque.


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