Product Overview

The Cla-Val D22: Electronic Valve Controller sets a new industry standard as an efficient, integrated, and simple electronic controller. It comes with pre-loaded templates of standard electronic valve applications called ValvApps, which are factory programmed for the most accurate valve regulation. Scaling of variables and parameters can be locally configured to fine-tune the valve for smooth regulation. ValvApps are designed for both single-function controls and complex solutions. The D22 translates proven engineering know-how to meet new challenges efficiently and economically. It features unique embedded electronic security and fail-safe parameters to protect water systems and capital investments. Electronic controls can be combined with hydraulic controls for dual functions or independent fail-safe capabilities. Designed with the latest technology and high-quality electronic components, the CLA-VAL D22 PCB is fully tropical coated for maximum humidity protection. Its I/Os are protected against wrong wiring, and a resettable fuse guards against over-voltage/reverse polarity. The D22 offers accurate and stable regulation with multiple PID functionality, an integrated multi-channel data logger, and both remote and local programming capabilities. It boasts a submersible IP68 rating.

Key Benefits

• Pre-loaded typical valve applications (ValvApps) for efficient and accurate regulation.
• Accurate and stable regulation with smooth fine-tuning capabilities.
• Supports time, flow, level, or pressure control with single or combined modulation modes.
• Simple Control Curve programming with graphical functions, no external computer required.
• Multiple PID Functionality (up to 4 PID loops) with local or remote set-point options.
• Integrated Multi-Channel data logger with 128 Mbytes internal rolling memory (80,000,000 values) expandable to 2 GB SD card storage.
• Remote and Local programming capability.
• Submersible IP68 rating, ensuring maximum humidity protection with a tropical coated PCB.
• Unique embedded electronic security and fail-safe parameters to protect water systems.
• Input/output protection against wrong wiring, over-voltage, and reverse polarity.

Applications

• Maintaining valves at preset set-points.
• Creating relationships between two system variables using Control Curves (e.g., linking pressure, flow, level, and/or time).
• Triggering actions or alarms when programmable conditions are met (e.g., activating relays, solenoids, or 4-20 mA outputs).
• Retransmitting input signals, variables, or calculations to supervision systems (e.g., converting flow meter pulses to 4-20 mA).
• Advanced regulation in water distribution networks and other automatic control valve applications.

Features & Construction

• PID Control: Up to 4 PID loops, programmable set-point ramping to prevent hydraulic shocks.
• Control Curves: Up to 8 customizable profiles for adaptation (e.g., seasonal adjustments).
• Actions: Up to 4 programmable actions (alarms) based on conditions, with hysteresis or dead band configuration.
• Signal Retransmission: Up to 4 input signals (pressure, flow, level) can be redirected via 4-20 mA outputs.
• Data Logging: Logs all input/output values, stored in MS-Excel (CSV) readable format, transferable by USB or cellular network (2G/3G/4G). Recording speeds configurable.
• Log File: Records all actions (configuring, programming, local display) for full traceability.
• Enclosure: IP68 standard (full immersion 2m water/1 month), PC/ABS plastic UV resistant, silicon sealed polycarbonate screen.
• Interface: 5 mechanical push buttons, 4.3" color display (272 x 480 - 24 bit).
• Electrical Connection: IP68 cable gland or Souriau connector.
• Optional CLA-VAL e-Power IP Turbine for power supply.

Technical Specifications

Specification	Value
Inputs (Analog)	6x 4-20 mA / 0-5V / 0-10V (10-bit resolution)
Inputs (Digital)	6x (dry contact, max 5 VDC @ 0.1 A, 100 Hz max.)
Outputs (Analog)	4x 4-20 mA (10-bit resolution, 500 Ω impedance)
Outputs (Solenoid)	2x solid state relay 24 VDC @ 0.5 A (binary or proportional)
Outputs (Mechanical Relay)	2x mechanical relay 24 VDC - 240 VAC @ 1 A max.
Logging Memory	128 Mbytes internal (80,000,000 values), extended to 2 GB SD card
Memory Protection	10 years (lithium battery)
Communication	Modbus RTU/RS485, Modbus TCP/Ethernet 100 Base T, USB A, RS 232, Optional 2G/3G/4G network (LTE-M, NB-IoT, GPRS), Optional Wi-Fi/VNC
Power Supply	12-24 VDC
Power Consumption (Stand-by)	1.9 W
Power Consumption (In use)	3 W
Power Consumption (Max)	30 W
Dimensions (H x W x D)	223 x 153 x 89 mm
Weight	1.4 kg
Operating Temperature Range	-10°C to +70°C
Operating Pressure	PFA 10 bar
Protection	IP68 (full immersion 2m water/1 month)

Installation & Maintenance

• No external specialized consultants are needed for programming.
• Easy adjustment and maintenance.
• Programming is locally configurable for fine-tuning.
• Input signals can be filtered from 1 to 60 seconds.