Dual-Channel Universal Process Controller

HI520

Dual-Channel Universal Process Controller

$1,099.99

Our advanced process controller, the HI520, is designed for applications requiring precise monitoring and control of four key water-analysis parameters: pH, ORP, Conductivity, and Dissolved Oxygen

Waterproof Enclosure: IP65 (Nema 4X) rating ensures durability in harsh environments.
Clear Status Indicators: Multi-color LEDs and an audible alarm provide immediate system feedback.
Versatile Installation: Compatible with wall, pipe, and panel mounting kits (sold separately).
Modbus Integration: Easily integrates into Modbus networks for remote monitoring, setup, and configuration.

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Control Modes

Set points for control operations can be configured to be on/off, proportional, or PID types of control. The flexibility in programming allows for fine-tuning of a set point to be maintained with tight control preventing any overshoot and waste of chemicals.

Hold Function

Hold can also be triggered manually and by using and external digital input for disabling control mode when performing maintenance.

Configurable Alarm System

Configurable for set points and temperature or activated by abnormal operation, a red Alarm LED will blink and can easily be seen from a distance. All relays configured for control are inactivated until the alarm state is resolved.

Auto-cleaning cycle

The cleaning function allows the ability to program one or more wash cycles and use the relays to activate valves, pumps or compressed air based on the type of washing that is required to maintain probes for reliable results.

Relays

Available with up to five electromechanical control relays and one alarm relay.

Analog Outputs

Up to four galvanically isolated analog outputs for control of pumps and valves.

Digital RS485 Output

Can daisy-chain up to 32 devices to a remote monitoring system.

Digital Inputs

Two digital inputs available for modes including disabling, cleaning and placing the controller into hold status.

Large LCD

The LCD displays measurement information along with indicators of potential problems. The DIAG key then provides details of the issue.

Data-logging

Store info at selectable intervals along with relay control settings and calibrations data. Up to 100 lots, each holding 8600 records. Transfer to a flash drive as a .csv file using the USB Type-C port.

Help Button

Using the help and diagnostic button (? DIAG) will provide information related to errors or in setup mode, information about settings.

Resources

Specifications


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 Inputs	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% full scale
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
Enclosure	*Single case ½ DIN, type 4X, IP65 ingress protection
Installation Category	II
Environment	-20 to 50 ºC (-4 to 122 ºF); maximum 100% RH non-condensing
Dimensions	Width 144.0 mm (5.7”) x Height 144.0 mm (5.7”) x Depth 151.3 mm (6.0”)
Weight	Approximately 1.6 kg (3.5 lb.)
Ordering Information	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. 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.
Notes	*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.