KJLC® Multi-Gauge Controller — MGC3000

Overview

• 3 Channel Controller for one ionization and two convection gauges or one ionization, one convection and one alternate capacitance diaphragm gauge
• Various pressure measurement ranges from 2.00E-11 to 1,000 Torr (2.7 x 10^-11 to 1333 mbar)
• 3 analog outputs, 6 setpoint relays, RS232/RS485 serial communications, remote Digital I/O
• Compact space saving half rack design, bench top or panel/rack mount instrument
• Outstanding product warranty of 5 years

The Kurt Lesker Company (KJLC) series 3000 multi gauge controller is a highly versatile vacuum measurement controller capable of operating one ionization gauge (IG) and up to two KJL275 convection vacuum gauge sensors (CG), or one IG, one CG and one alternate gauge such as a capacitance diaphragm gauge (CDG). The ionization gauge on/off, degas functions and emission current selection can be controlled via front panel soft-keys, remote input signals (Digital I/O), or serial communications. IG sensor can also be automatically turned on/off using the measurements from one of the user selectable convection or alternate gauges. The MGC can be set to automatically switch (auto-ranging) between various emission currents. This results in optimal and stable pressure readings over the entire measurement range from low to high vacuum. High efficiency power supply design and effective thermal management techniques are used to enable operation of the MGC without the need for air movement devices such as troublesome fans. The state of all setpoint relays, emission current, filament in use and error messages for all fault conditions are displayed on the easy to read OLED set-up screen. Filament operation including filament current, emission current and ion current can be monitored in real time in the research screen mode.

Dimensional Drawings

Specifications Table

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

Need More Info?

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

 Notes: 

Power supply, gauges, and connection cables are all sold separately.

Specifications Table

275 Series Gauge Tubes

Need More Info?

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

 Notes: 

Power supply, gauges, and connection cables are all 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.