Vacuum Gauge MG12-8CH is a versatile, microprocessor controlled device, that is able to support the operation of 8 vacuum gauges simultaneously.Device handles almost every gauge type on market, that are based on 0-10V or 4-20mA DC standard. As a standard,all following Oerlikon-Leybold and MKS instruments gauges are implemented : TTR90,TTR100,TTR211, CTR90 , ITR90, ITR100, DI200, DI 2000, PTR 225, MKS870. Any others can be implemented optionally, with the exception of extractor gauge. Controller can display simultaneously every combination between 1 and 8 channels, font size adapt itself according to number of displayed channels.As a big advantage of this instrument it is possible to set up to 16 setpoints, that can trigger up to 16 relays.Every one could be programmed independently of each other, for any measurement channel , using hysteresis and switch logic „above” and „below” setpoint. Any of those setpoints can control any of given relays, there are 16 relays :
• 8 ( 2-contact) items NO („normally opened”), and
• 8 ( 3-contact) items NO/NC („normally opened” or „normally closed”).
Measurement channels are active instantly after power up. Device has also feature of automatic gauge type recognition.User can either scan for a implemented gauge type or choose type manually. There is also possibility to choose one of 7 predefined gases, or user defined one, for every channel separately. Gas type has considerable influence on readings, case MG12-8CH operates with for example, ionisation gauge. User can control emission (unlimited time), and degas (limited time) on particular channel. Controller has also feature of automatic broken cable or damaged gauge head recognition, in that case , warns user about failure.
All active parameters are displayed on the screen, device status is additionally indicated through LED diodes.
User can also put 4 analog input channels on output (signal mirroring), and use them for any other purpose.