1. Alarm & Control Panels
Microscan
Multiscan
Storescan

2. Case Controls
MC850
MC10
DC1xx

3.Pack Controls
DC68 Pack Controller
Step Controller
Compressor Controller
Inverter Controller

4. Miscellaneous Network Devices
Plant / Digital Input Modules
Temperature Monitoring Modules
Relay Modules
Power Monitoring

5. Older Products
Support Policy

Alarm Panels

CDK Electronics Ltd. produces a number of refrigeration control and monitoring/alarm panels aimed at differing size stores. From hard wired systems to full RS485 networked systems.

Microscan - This is the smallest of our alarm panels and is designed for small retail outlets that require temperature point monitoring only. Probes are fitted within the cases and connect directly to the panel; up to 16 probes can be fitted along with 16 plant fault inputs. Each probe has an associated defrost status input. Temperature point can be programmed with separate alarm bands and delays. There is a dial out and alarm output facility for remote alarm indication.

Features Include: Low cost and simple installation User friendly controls Full Temperature Alarm Facilities Defrost Indication and Inhibit facilities Plant alarm facility Data logging of temp and alarm file Printer facilities

The panel is fitted with a ¼ VGA LCD display with backlight providing multi line and graphical displays, a custom designed multi keypad and a floppy-disk drive using standard IBM PC format high-density disks.

This panel will also interface with a modem enabling full bi-directional data communications, PC terminal software is also available.

Storescan III - This is the largest and perhaps the most successful panel to date. Geared primarily around the bigger stores where a large number of networked controllers are required. The panel will connect to 240 network devices via its 8 RS485 channels as standard, a further 8 channels are available if required. The panel is based on an industrial computer and uses a hard disk to store the program, configuration and up to 4 month's worth of data logs. There is a floppy-disk drive that uses OS9000 format floppy disks and CDK can provide software to read and write these disks on a standard PC or laptop.

The panel provides temperature, pack, defrost and lighting control, configuration is split into 122 temperature stubs, each of which containing up to 8 network controllers. Pack control units can interface with the Storescan III, enabling pressure optimisation and energy savings.

The Storescan III also has the ability to interface with the store groups' internal TCP/IP network, allowing data to be extracted to a central server. Data can be served from a standard web server and accessed through a standard web browser. New developments will allow the use of data analysis on this returned data for fault finding and increased service efficiency.

Pack Controllers

CDK manufacture a range of Pack control equipment ranging from Step controllers up to full PID multi-pack control. We also produce a number of trip monitor boards for use as pressure trips.

Step Controllers - Up to 15 stages of pressure control. The standard step controller provides 8 outputs and an alarm output, with an additional 7 outputs available as an expansion unit. The unit is provided with a RS485 network interface for connection to a Multiscan unit.

Compressor Controller - has the same specification as the step controller, but includes a full PID control algorithm for better control and energy savings.

Inverter Controller - the Inverter Controller provides 4 channels of 0 - 10volt variable outputs for inverter drive control, it incorporates a full PID control algorithm and also links into a Multiscan RS485 network.

DC68 Pack Controller - is a multi-pack controller, capable of controlling up to 4 packs and 4 condensers via pack I/O Units.
The DC68 Pack Controller uses advanced PID control algorithms to control the compressors and the condenser fans. There are a large number of parameters that can be readily changed to tune the performance of the pack as required.
An RS485 network provides connectivity to a Storescan III alarm and monitoring panel to form an integrated temperature and pressure control system, with the ability to float pressure set points to satisfy case temperatures.

Case Controllers CDK produces a range of case and coldroom controllers to complement our range of panels. Many of our controllers are multipurpose with the operational functionality being determined by bit switch selection. MC850 - The MC850 has been our standard controller for many years. It is capable of network or stand-alone control and is equally suited for case and coldroom control, can be fitted with an LED display and fans / cleaning key switch. The MC850 will interface with both the Storescan III and Multiscan panels, linking together to provide a complete refrigeration control package.

MC10 - The MC10 is CDKs latest controller. It is an adaptation of our popular MC850 but has been extended to use standard PT1000 type probes as well as our own 2k2 Thermistor probes.

DC1xx - The DC1xx range of controllers have been specifically designed for use with the Multiscan alarm panel.
The DC1xx are normally supplied as a complete control package, built into control panels for case or coldroom. The output relays are capable of switching 20amps which eliminates the requirements for additional switching circuits.

Miscellaneous Network Devices

In addition to our range of controllers we also have a number of input and output network modules that can be used for monitoring various areas within the store, available for both the Storescan III and Multiscan panels.

Plant/Digital Input Boards - Plant/Digital input boards are used for plant status within the store, pack faults, defrost status, etc.

Relay Boards - relay boards provide remote switching of external devices such as lighting control or pack header stations.

Temperature Monitoring Boards - Multi way temperature input boards are available for monitoring remote points, such as integrals and coldrooms.

Power Monitoring - The Storescan III panel also supports power monitoring, power transducers can be fitted to plant and ancillary equipment, which are then monitored by network power monitoring units, the data then being recorded in the panel.

Older Products Support Policy
Over the past 16 years CDK Electronics Ltd has produced an ever-developing range of products, we currently support over 300 separate lines, ranging from those controls listed above to older non-standard production items. We operate a product support policy, which means that we can supply technical information for any product and even supply spares or alternative product to meet the customers need, even if we stopped making the range 10 years ago.

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