KJLC® Multi-Gauge Controller – MGC4000

Overview

The MGC4000 provides the user the ability to display pressure measurements from up to 10 different vacuum gauges simultaneously. The instrument can be configured to display up to 6 gauges in a single screen or assign any number of gauges to various screens for auto scrolling of display.

The state of all setpoint relays and engineering units of measure will be displayed on the main screen. Filament operation including filament current, emission current and ion current can be monitored in real time on research screens. Error messages will be displayed for all fault conditions. The system can be personalized by assigning specific names to individual gauges or use the factory default gauge symbols.

High efficiency power supply design and effective thermal management techniques are used to enable operation of the MGC without the need for use of air movement devices such as troublesome fans often required in even single ionization gauge power supplies. Filament switching control from the MGC combined with capability to operate two conventional B-A ionization gauges simultaneously, offers the user low cost of ownership and unparalleled ease of use.

• Windows^® Embedded Compact operating system provides reliable and stable instrument operation
• Capable of operating up to 4 ionization and 4 convection gauges simultaneously as well as display pressures from up to 2 Capacitance Diaphragm Gauge devices
• Easy to read LCD with backlighting provides sharp contrast with wide viewing angle
• Capable of providing up to 8 analog outputs, 16 setpoint relays and RS485 / RS232 interface
• Gauges and interconnect cables sold separately.

Specifications Table

351 Series Hot Cathode Bayard-Alpert Miniature-Ionization Vacuum Gauge

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Please click here to see our dedicated 351 Series Ion Gauge page for ordering options, accessories, and more info.

Overview

When used with KJLC's multigauge controllers, the 351 ionization vacuum gauge module provides the basic signal conditioning required to turn the gauge into a complete measuring instrument.

KJLC continuously strives to enhance the design, reduce cost and improve the performance and reliability of the 351. The electrometer circuit auto zeroes to ensure that the readings are not subject to temperature drift, eliminating the need for unnecessary, expensive circuitry which further reduces the cost.

All operations including filament on/off, degas, and change of emission current is controlled from the MGC.

The emission current can be set to automatically switch between 4 mA and 100 µA. This results in optimal and stabile pressure readings over the 351's measurement range, 1.0 x 10^-9 to 5 x 10^-2 Torr

The 351 gauge tube assembly is constructed of a compact all metal design with dual yttria coated Iridium or optional dual tungsten filaments.

For general vacuum applications, dual yttria coated filaments are offered for use with air and inert gases such as N2, argon, etc. Dual tungsten filaments are available for use with gases that may not be compatible with yttria coated filaments.

The gauge sensor assembly can be easily replaced in the field.

• Wide measurement range
  1.0 x 10^-9 to 5 x 10^-2 Torr
  1.3 x 10^-9 to 6.7 x 10^-2 mbar
  1.3 x 10^-7 to 6.7 Pa
• Ionization gauge designed specifically for use with KJLC's Multi-gauge Controller (MGC)
• Significant cost savings compared to other vacuum gauge measurement systems
• Full range measurement from 1 x 10^-9 Torr to atmosphere when used with the KJLC Multi-gauge Controller (MGC) and a convection gauge
• Dual hot filament design, rugged and compact metal construction
• Built-in Electrometer results in significant controller and cabling cost reduction
• Interconnect cable sold separately.

Specifications Table

275 Series Gauge Tubes

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Please click here to see our dedicated 275 Series Gauge Tubes page for ordering options, accessories, and more info.

These gauge tubes and controllers are ideal for new applications or as low-cost drop-in replacements to the Convectron^® brand of Granville-Phillips^® gauges.

Features:

• Wide measuring range: 10^-4 Torr to 1,000 Torr (10^-4 to 1,333 mbar)
• Performance identical to existing competitor's gauges
• Less prone to damage from mechanical shock or vibration than competitor's tubes
• Less outgassing and faster response to pressure changes than competitor's tubes
• Rugged design withstands more abuse and harsh environments
• Significant savings—no changes to your system, you use your existing competitor's controllers or cables
• No changes to your process—a single vacuum gauge can monitor your vacuum system pumpdown and venting; helps keep your process up and running, even if it's not a laboratory environment
• CE marked, RoHS compliant
• Interconnect cable sold separately.

Specifications Table

Ion (Hot Filament) Gauge Tubes

Overview

Bayard-Alpert ion gauges have a reasonably linear response from 1 x 10^-4 Torr to 1 x 10^-9 Torr, with gauge sensitivities from 5 to 20 Torr^-1. B-A gauges are available with one or two filaments (the second acting as a spare) and with two filament materials thoria-coated iridium, used in oxygen-rich applications and for "burn-out" protection if accidentally vented and tungsten, used for lower cost and in residual gases containing halogens.

Need More Info?

Please click here to see our dedicated Replacement Ion (Hot Filament) Gauge Tubes page for ordering options, accessories, and more info.