These Mini Bayard Alpert Style and 8138/29D20 Triode style hot ionization gauge tubes measure a wide vacuum range. Smaller that standard glass Bayard-Alpert gauges, they are ideal for use in analytical instrumentation. Accidental exposure to atmosphere a normal operating temperatures will not damage the gauge because of the use of the thoria coated iridium filaments.
| Specifications | ||
|---|---|---|
| Triode | Mini B.A. | |
| Range | <5 x 10-7 to 5 x 10-2 Torr | 5 x 10-8 to 5 x 10-3 Torr |
| Accuracy | +/- 15% | -15% to +30% |
| Mounting Orientation | None | |
| Mounting Tubulation | 0.75" Kovar | |
| Filament Type | Thoria Coated Iridium | |
| Gas Selection | Specifications are for air or Nitrogen | |
| Operating Temperature | 0 - 50° C, non-condensing | |
| Sensitivity | 6.2/Torr | 5.2/Torr |
| Filament Voltage | 1.5 to 3.5 Volts | |
| Filament Current | 1.75 to 2.25 A | |
| Grid Voltage | 120 to 250 VDC | |
| Collector Voltage | -20 to -50 V | |
| Emission Current | 2 mA | |
| Operating Power | 3 to 4 W | |
| Gauge Tube Diameter | .0855" max O.D. | |
| Gauge Tube Length | 2.8" max, including pins. | |
| Pin Diameter | 0.040" | |
| Pin Length | 0.275" | |
| UOM=EA | |||||
| Part No. | Description | est wt. |
Quantity In Stock |
Price | Quantity to order |
|---|---|---|---|---|---|
| SIS342003 | SIS MINI TRIODE MINI TUBE SAME AS 342003 Thermo #00105-01525 | 0 | 6 | $190.00 | |
| 342001 | GP MINI ION GAUGE MODULE WITH NW16KF MINI-ION GAUGE MODULE INTERFACE MEASUREMENT UNITS IN TORR AGILENT G194680005 | 0 | 0(#) | $1110.00 | |
| (#) Standard lead-time for out-of-stock items is approximately two weeks. | |||||
Ordering information.
International (non-US) prices available through your
local dealer.
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 Yttria coated filament at start |
 Yttria coated filament after 16,000 cycles |
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