Valmet Automation M851565 Damatic Keyboard – Mkb2

The Valmet Automation M851565, known as the Damatic Keyboard Mkb2, is a professional operator interface designed for the Damatic distributed control system. It provides a robust and ergonomic keyboard with dedicated function keys for process control, alarm management, and system navigation. The Mkb2 is built for continuous use in control rooms, offering tactile feedback, durable key switches, and a backlight for low‑light conditions. It connects directly to Damatic workstations via serial (RS‑232) or USB, depending on the variant.

Key Layout and Features

The keyboard features a standard QWERTY alphanumeric section, a numeric keypad, and a set of 24 programmable function keys. The function keys are labeled with industry‑standard icons for start, stop, reset, alarm acknowledge, and page up/down. Additionally, there are cursor arrow keys and a dedicated "enter" key. The keycaps are made of abrasion‑resistant polycarbonate with laser‑etched legends. Each key has a mechanical life of over 10 million actuations.

Backlighting and Visibility

The keys are illuminated by an adjustable blue/white LED backlighting system. The intensity can be controlled via a potentiometer on the underside of the keyboard. The backlight ensures comfortable operation in dimly lit control rooms, and the contrast is optimized for viewing from various angles. The LED indicators for Caps Lock, Num Lock, and communication status are also provided.

Connectivity and Interface

The Mkb2 is available with either a coiled RS‑232 cable (DB9 female) or a USB‑A cable. The RS‑232 version operates at 9600 baud, 8 data bits, 1 stop bit, no parity, and is plug‑and‑play with Damatic systems. The USB version is HID‑compliant and works with any standard PC running Damatic software. A green status LED on the keyboard indicates link activity. The cable length is 1.8 meters, extendable with standard cables.

Mechanical and Physical Design

The enclosure is made of high‑impact ABS plastic with a sloping profile (angle adjustable via flip‑out feet). Dimensions are 420 mm (width) x 180 mm (depth) x 40 mm (height), and it weighs approximately 1.2 kg. The base has non‑slip rubber pads to prevent movement on the desk. The keyboard is resistant to minor spills and dust, with a sealed membrane under the keys.

Environmental and Safety

Operating temperature: 0 °C to +45 °C; storage: ‑20 °C to +60 °C; humidity: 10‑80 % non‑condensing. It meets EN 60950‑1 safety standards and carries CE and FCC marks. The keyboard is ESD‑protected up to 15 kV.

Installation and Setup

Connect the keyboard to the Damatic workstation using the appropriate port. The system automatically detects the keyboard; no driver installation is required. If the keyboard does not respond, check the cable connection and ensure the serial port settings match. The function keys can be programmed via the Damatic configuration software to execute custom commands or macros.

Applications

The Mkb2 is used as the primary operator input device in pulp, paper, and process control plants where Damatic systems are deployed. It is often paired with a mouse or trackball for graphical navigation.

Maintenance and Cleaning

Regular cleaning with a soft, damp cloth and mild detergent is recommended. Avoid abrasive cleaners and solvents. The keycaps can be removed for deep cleaning. If a key becomes unresponsive, check for debris under the cap. The keyboard is not field‑repairable beyond basic cleaning; replace the unit if it fails.

Spare Parts and Availability

The M851565 is still available through Valmet spare parts channels. A compatible USB version (M851566) is also offered. Ensure the correct variant is ordered based on the workstation connection type.

Conclusion

The Valmet M851565 Damatic Keyboard Mkb2 delivers a durable, user‑friendly interface that enhances operator efficiency and comfort in demanding control room environments.