เครื่องวัดคุณภาพน้ำแบบหลายพารามิเตอร์ (Dual-Channel Universal process controller) รุ่น HI520-0320 (3 Relays 2 Analog outputs)

HI520-0320 เป็นตัวควบคุมกระบวนการขั้นสูงที่สามารถกำหนดค่าสำหรับการใช้งานที่ต้องการการตรวจสอบและ/หรือควบคุมพารามิเตอร์การวิเคราะห์น้ำหลักสี่พารามิเตอร์: pH, ORP, ความนำไฟฟ้า และออกซิเจนที่ละลายน้ำ

HI520-0320 is an advanced process controller that can be configured for applications requiring monitoring and/or control of four main water-analysis parameters: pH, ORP, Conductivity, and Dissolved Oxygen.

• Waterproof IP65 (Nema 4X) enclosure
• Multi-color LED status indicators & audible alarm
• Universal mounting kits available with wall, pipe, and panel mounting options
  (All mounting kits must be ordered separately)

HI520-0320 is an advanced process controller that can be configured for applications requiring monitoring and/or control of four main water-analysis parameters: pH, ORP, Conductivity, and Dissolved Oxygen. This controller features a digital probe input(s) that automatically detects and updates the controller with the parameter that it measures.

HI520-0320 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, HI520-0320 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.

 

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.

Product Manual: Download

Specification :

SKU	HI520-0320
Product Name	Dual-Channel Universal Process Controller for Industrial Applications – HI520-0320 : 3 Relays 2 analog outputs HI520-0540 : 5 Relays 4 analog outputs
Quote Required	Yes
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
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
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
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.
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
Height	144.0 mm (5.7”)
Depth	151.3 mm (6.0”)