Ion Gauge Controller
NGC2D Bayard-Alpert Ion Gauge Controller
£950.00 excl. VAT and transportation costs
The NGC2D is a high-accuracy Ion Gauge controller that offers integrated pressure measurement and process control; with a large, clear display, an intuitive user interface and serial communications.
- Continuous measurement range: 1000 mBar to 3 x 10-11 mbar.
- Controls 2 Ion gauges (sequentially), 2 AML Pirani gauges and 1 Capacitance Manometer.
- Bright green LED display shows bar-graph or numeric pressure, trend, diagnostics, etc..
- Display in mBar, Torr or Pascal. Permanent bar-graph of Pirani pressures.
- Customizable gauge labels.
- Simple, guided setup is re-entrant and can be password protected
- Automatic or manual emission current setting.
- Ion gauge sensitivity adjustable 1mbar-1 to 140mbar-1.
- Automatic start of Ion gauge in pump-down and can be interlocked by Pirani or external signal.
- Manual and automatic electron-bombardment degas programs.
- 4 power relays for process control (5A, 240V) flexibly assignable to gauges with programable hysterisis.
- System bakeout program with control of temperature, time & over-pressure limit. Integral K-thermocouple amplifier.
- Automatic control of titanium sublimation pump controller with optional countdown / cancellation of imminent firing.
- RS-232C interface for data-logging and control
- Recorder output 1.0 volt/decade.
- 1U high full-width, steel cased instrument for easy rack-mounting.
- Operates from 100V to 240V, 50/60Hz supply.
|Order Code||Description||Price £|
|NGC2D||Ion Gauge Controller||950.00|
|AIG17G||UHV BA Ion Gauge, Tungsten Filaments||285.00|
|AIG18G||UHV BA Ion Gauge, Thoria Coated Filaments||325.00|
|AIG19G||UHV BA Ion Gauge, Yttria Coated Filaments||325.00|
|AIGL3||Ion Gauge Cable, 3 metres, Bakeable||157.00|
|AIGL6||Ion Gauge Cable, 6 metres, Bakeable||202.00|
|AIGL9||Ion Gauge Cable, 9 metres, Bakeable||247.00|
|AIGLx||Ion Gauge Cable, Custom Length, Bakeable||Call|
|PVB3||Pirani Gauge NW16CF, Bakeable||210.00|
|PVU3||Pirani Gauge NWKF16||148.00|
|PVX10||Pirani Extension lead,10 metres, non-bakeable||45.00|
|FIL17||Replacement Twin Tungsten filament assembly||30.00|
|FIL18||Replacement Twin Thoria-coated iridium filament assy.||60.00|
|FIL19||Replacement Twin Yttria-coated iridium filament assy.||60.00|
AML AIG1xG are recommended. Bayard-Alpert gauges from many other manufacturers are suitable without adjustment other than sensitivity.
From 1 x 10-3 to below 3 x 10-11 mbar with a UHV gaugehead with tungsten filaments. The low limit is dependent on gaugehead, cable construction and length and conditions of use. The upper limit is determined by the acceptable life of the filament and my be extended by the use of thoria or yttria-coated iridium filaments.
Accuracy and repeatability:
Determined principally by the gaugehead: controller errors are much smaller. Emission at 0.5mA is recommended. Electrometer logarithmic conformance <1% within any decade from 0.1 mA to 10 pA, <5% to 1 mA and <20% to 2 pA at 25ºC incoming air temperature. Slope temperature compensation <0.02% per degree Celsius. Differential linearity of the 12- bit A to D converter is less than 0.1 LSB. Emission current initial accuracy <2%, stability <1%.
Grid: +200 volts in emission, +500 volts at ≤60 mA in degas.
Filament: +50 volt bias, ≤12 volts at ≤4.2 A (Tungsten) ≤2.6 A (Iridium) with filament power limited at > 30 watts.
AML types PVU and PVB.
A constant-voltage bridge circuit reduces contamination at high pressures. AML Pirani gaugeheads may be exchanged or extension leads may be connected without adjustments being necessary.
Gauges of any manufacture having a +10 volt full-scale output at 1, 10, 100 or 1000 mbar or Torr and which are self-powered are suitable. Pressure indication can be in units different to the full-scale units defined for the Gauge.
Scientific notation (1 or 2 decimal place resolution) or bar-graph displays in mbar, Torr or Pascal.
5º to 35º Celsius for specified performance. Incoming air temperature is measured and displayed and operation is inhibited at >40°C.
100 V to 240 V nominal at 48 to 65 Hz, without adjustment.
1U high, full width x 270mm Deep