HACH SC4500 Digital universal controller

Digital universal controller

HACH SC4500

The C4500 digital universal controller takes the convenience, accuracy, and efficiency of controllers to a whole new level. It can be connected to a variety of HACH digital sensors. It features a modern touchscreen with a comfortable feel, multiple analog and digital communication options, and intelligent device and data management functions.

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Industry Applications

It can be used for monitoring municipal wastewater, drinking water, pollution sources, surface water, industrial process water and wastewater, etc., and is especially suitable for smart water-related applications.

Instrument Features

Modern touchscreen with comfortable touch, compatible with a variety of existing HACH digital sensors
Extensive analog and digital connection options (including Ethernet, LAN, Profinet, etc.)
Intelligent device and data management functions
Built-in Prognosys predictive diagnostics software system, providing proactive maintenance plans (including step-by-step instructions), ensuring measurement reliability and reducing the risk of unexpected equipment downtime
Optional industrial Ethernet protocols can transmit information from instruments connected to the SC4500 to a data platform, improving customer efficiency in device management.

Technical Specifications

Display TFT 3.5-inch capacitive color touchscreen
Operating temperature range -20 - 60℃ (8 W (AC)/9 W (DC) sensor load)
-20 - 45℃ (28 W (AC)/20 W (DC) sensor load)
Storage conditions -20 - 70℃, relative humidity 0 - 95%, non-condensing
Sensors Dual-channel digital SC connector
Relays Two relays (SPDT);
Wire gauge: 0.75 - 1.5mm² (18 - 16AWG)
AC controller:Maximum switching voltage: 100 - 240 VAC
Maximum switching current: 5A resistive /1A pilot duty
Maximum switching power: 1200VA resistive /360VA pilot
DC controller:Maximum switching voltage: 30VAC or 42VDC
Maximum switching current: 4A resistive /1A pilot duty
Maximum switching power: 125W resistive /28W pilot
Communication (optional) Analog: Each analog output module is equipped with five 0-20 mA or 4-20 mA analog outputs
Up to two analog input modules (0-20 mA or 4-20 mA).
Each input module replaces one digital sensor input.
Digital: Profibus DPV1 module
Modbus TCP module
Profinet IO module
Ethernet IP module
USB port For data download and software upload. Can store approximately 20,000 data records.
Enclosure protection class UL50E Type 4X, IEC/EN 60529 - IP 66, NEMA 250 Type 4X
Metal enclosure surface has corrosion resistance
Power supply AC: 100-240 VAC±10%, 50/60 Hz; 1A (sensor load 28W)
DC: 24 VDC+15%-20%; 2.5A (sensor load 20W)
Controller dimensions 144 x 144 x 192 mm
Weight 1.7kg (controller only, without sensor module)
Certifications Complies with CE certification /ETL certification, UL certification and CSA safety standards (applicable to all sensor types)

Accessory Information

LXZ525.99.D0001 SC4500 mA input module
LXZ525.99.D0002 SC4x00 mA output module (5 outputs)
LXZ525.99.C0002 SC4500 Ethernet IP upgrade kit
LXZ525.99.C0003 SC4500 Modbus TCP/IP upgrade kit
LXZ525.99.00026 SC4500 Ethernet cable M12-M12 /C1D2, 10 m

Ordering Guide

LXV525.99A15551 SC4500 digital controller, with Prognosys function, Modbus TCP+LAN, can connect 2 digital probes
LXV525.99A1B551 SC4500 digital controller, with Prognosys function, LAN+mAOutput, can connect 2 digital probes
LXV525.99A11501 SC4500 digital controller, with Prognosys function, 5x 4-20mA output, can connect 1 digital probe
LXV525.99A11551 SC4500 digital controller, with Prognosys function, 5x 4-20mA output, can connect 2 digital probes
LXV525.99A15501 SC4500 digital controller, with Prognosys function, Modbus TCP+LAN, can connect 1 digital probe
LXV525.99A12551 SC4500 digital controller, with Prognosys function, ProfibusDP, can connect 2 digital probes
LXV525.99A12501 SC4500 digital controller, with Prognosys function, ProfibusDP, can connect 1 digital probe

Source: Public information from the HACH Water Quality website

Municipal Wastewater Treatment

Municipal Wastewater Treatment · Controllers and Sensors — Application Case

Site Conditions

This is a Municipal Wastewater Treatment customer whose plant is at the inlet, biological and outlet stages of a municipal plant. The main task was online water monitoring with a controller and sensor combination.

The Problem

The difficulty lies in high solids and corrosive fractions, with large diurnal flow swings; at the same time effluent parameters drift and probes foul with sludge and biofilm. Specification therefore means matching each controller channel to its sensor type.

What We Did

We took a Hach channel approach — supplying against the Hach original part numbers. Delivery was built around matching each controller channel to its sensor type, with point-by-point checks on: stable compliance with Grade 1A discharge limits and online data reporting.

Operating Outcome

In service the system performs as intended — factory-matched combinations that make faults easier to locate, with routine maintenance falling noticeably.

Food & Beverage

Food & Beverage · Controllers and Sensors — Application Case

Application Context

dosing, pasteurising, filling and CIP stages is a typical Food & Beverage duty. The project started from Controllers and Sensors, focusing on online water monitoring with a controller and sensor combination.

Process Constraints

frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles, and syrups, dairy and beverages that scale easily, under strict hygienic requirements only amplify it. The Controllers and Sensors specification must therefore cover matching each controller channel to its sensor type.

Delivery Approach

Delivery was handled as the Hach channel — supplying against the Hach original part numbers. Execution centred on matching each controller channel to its sensor type, together with food-safety and hygienic design per 3-A / EHEDG.

Field Results

Operation shows the benefit clearly — factory-matched combinations that make faults easier to locate, with confidence in this measuring point improving markedly.

Chemical & Pharmaceutical

Chemical & Pharmaceutical · Controllers and Sensors — Application Case

Customer Profile

The typical setting in Chemical & Pharmaceutical is reactors, metering vessels and finished-product tanks. The measuring point is Controllers and Sensors; the focus is online water monitoring with a controller and sensor combination.

Key Difficulties

Conditions are highly corrosive media with solvents and crystallisation, partly in explosive atmospheres and, on top of that, corrosion plus Ex protection shortens instrument life and makes downtime costly, which a standard configuration cannot handle for long. The design therefore starts with matching each controller channel to its sensor type.

Implementation

The scope ran through the Hach channel: supplying against the Hach original part numbers. Technically it hinges on matching each controller channel to its sensor type, and on these requirements: Ex certification and GMP traceability of records.

Customer Benefit

In practice this means factory-matched combinations that make faults easier to locate, which cut the workload on the site maintenance team.

Power & Energy

Power & Energy · Controllers and Sensors — Application Case

Project Background

The project covers boiler feedwater, turbine condensate and FGD/DeNOx systems. The work centres on Controllers and Sensors and the core task is online water monitoring with a controller and sensor combination.

Operating Challenges

The medium and duty are characterised by high temperature and pressure with both steam and saline water, and drift under high temperature and pressure, with very costly unplanned outages. So Controllers and Sensors cannot be specified generically — it calls for matching each controller channel to its sensor type.

Solution

The Ainstru engineering team worked through the Hach channel: supplying against the Hach original part numbers. The configuration involves matching each controller channel to its sensor type, with these requirements in view: compliance with power-industry codes and unit availability targets.

Results

Since start-up the system has run steadily; the practical result is factory-matched combinations that make faults easier to locate.

HACH

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SC4500 Digital universal controller