VN115/87-EMC VISATRON® technical data A component of the DIEMOS-System

Description

Overview

Essential details：VN115/87-EMC VISATRON® technical data A component of the DIEMOS-System

• Over 54.000 engines well protected by VISATRON®
• Automatic opacity adaptation to engine in normal operation – False Alarm-free System even under frequent changes in engine load and rpm
• Extremely low maintenance cost – designed for engine lifetime
• Active dirt protection of optics by clean air – only available from Schaller Automation
• Designed for vibrations beyond classification rules
• Class approval of 11 Classification Societies

All VISATRON® – devices continuously draw the atmosphere from compartments of the crankcase by means of a suction system. The suction required is generated by the Venturi effect, fed by compressed air. The sample flow, consisting of air from the crankcase compartments, is guided through a light beam of infrared light for measuring opacity. The level of oil mist is measured by the absorption of the infrared light.
Opacity (in %) is used as the dimensional unit of the turbidity; 100% Opacity means total light absorption, and 0% opacity no absorption.
The VN87plus series offers the following standard features:
• Scavenging air chambers are not supplied with air from the engine atmosphere, but with fresh pressurized air so that the optical system is well protected against contamination and stays clean. Also the filters stay clean for a longer period.
• A measuring head heating unit prevents possible condensation, limiting the danger of false alarms due to humidity around the optical system.
• An RS 485 interface permits the connection of the VN87plus series to a remote monitoring unit, alternatively the system may be connected via a 4-20mA connection.
• A separate pre-alarm relay, activated at 70% opacity of main alarm level, will be activated before an engine stop will be triggered based on a high concentration of oil mist (endangering the engine).

VN11587-EMC

Sales Manager: Manager He

E-mail number: sales@saulcontrol.com

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All Oil Mist Detectors of the VISATRON® family are designed to last the lifetime of the engine.
The measuring heads containing the optical system for opacity measurement, as well as the electronics, are designed to be interchangeable with the older VN/87 series, produced for almost 25 years.
The air jet pump, the connector plug, the pipe connector box (VN115/87plus) resp. the valve box (VN116/87plus and VN 215/87plus) and the shock-absorbing mounting plate for the actual measuring head are mounted on a solid base plate.
All VISATRON® Oil Mist Detectors are equipped with 3 Relay outputs:
– System ready
– Pre-Alarm
– High Oil Mist Alarm (also called Main Alarm)