AA04A Baratron® General Purpose, 1-25,000 Torr Absolute Unheated Capacitance Manometer
Overview
The AA04A Absolute General Purpose Baratron® Pressure Transmitter offers superior temperature compensation, a dual electrode design, and an ambient operating temperature of up to 100°C. For ambient operation temperatures beyond 50°C, contact MKS applications for calibration requirements. The precision design and manufacturing permits an accuracy specification as a percentage of output reading, rather than in terms of Full Scale reading. The AA04A is the RoHS replacement for the MKS 230E absolute pressure transmitter. There is no change to the sensor or the parts and materials in the wetted path.
- Ambient operating temperature up to 100°C
- Full Scale range as low as 1 Torr and as high as 25K Torr
- Two-wire, 4-20 mA signal output allows long installation cables
- D-sub electrical connector with an option for a D-sub to terminal block adapter
Products
Configuration Options
The following options are available for the AA04A Baratron® Absolute Capacitance Manometer.
Ordering Code Example: AA04A13TCEADF
| Configuration Option | Option Code |
|---|---|
| AA04A Baratron General Purpose Pressure Transmitter | AA04A |
Full Scale Pressure Range |
|
| 1 | 01 |
| 10 | 11 |
| 100 | 12 |
| 1000 | 13 |
| 5000 | 53 |
| 10000 | 14 |
| 15000 | RB |
| 20000 | 24 |
| 25000 | RC |
Engineering Units |
|
| Torr/mmHg | T |
| mbar | M |
| kPa | K |
Fittings (compatible with) |
|
| 0.5 in. (12.7 mm) OD tube | BA |
| 8 VCR female | CE |
| 8 VCO female | DA |
| NW16 ISO-KF | GA |
| NW25 ISO-KF | GC |
| 1.33 in. (33.8 mm) Conflat | HA |
| 2.75 in. OD Conflat | HC |
Electrical Connector |
|
| 9 POS D-subminiature male | A |
| 9 POS D-subminiature male, filtered (for applications with high RF noise) | V |
Optional Terminal Block Adapter |
|
| None | D |
| Terminal Block Adapter on D sub | T |
Accuracy (see specifications for applicability) |
|
| Standard: ±0.5% of Reading | F |
| Optional: ±0.3% of Reading | T |
Specifications
-
TypePressure Transducer
-
Sensor TypeCapacitance Manometer
-
Measurement TypeAbsolute
-
Full Scale Pressure Ranges1, 10, 100, 1000, 5000, 10000, 15000, 20000, 25000 Torr (mmHg)
-
Fitting Type0.5 in. tubulation (max 1000 Torr): None
8 VCR Female: 316 Stainless
8 VCO Female: 316 Stainless
KF16 (max 1000 Torr): 304 Stainless
KF25 (max 1000 Torr): 304 Stainless
1.33 in. CF: 304 Stainless
2.75 in. CF: 304 Stainless -
Input Required/Output SignalTwo-wire, 4-20 mA @ +24 to 32 VDC into 500 &Ohm; load (4 mA @ 0 absolute pressure to 20 mA @ Full Scale)
Pin 1: +DC, Pin 2: Power Return -
AccuracyStandard: ±0.5% of Reading
Optional: ±0.3% of Reading (Option available for Full Scale ranges of 10 Torr or higher).
-
Zero Temperature Coefficient± 200 ppm/OC
± 250 ppm /OC for Full Scale of ≤1T -
Span Temperature Coefficient± 400 ppm/OC
-
Operating Temperature0-100°C (contact MKS applications for calibration requirements for ambient temperatures in excess of 50°C)
-
Overpressure Limit120% of Full Scale or 35 psia (240 kPa), whichever is greater without damage
-
Volume7.0 cc (Px side) for 0.5 in. OD tube fitting.
Volumes with other fittings available on request. -
Exposed MaterialsInconel
Some fittings are made from 300 series stainless steel (see "fittings") -
ComplianceCE
Resources
Literature
- AA04A Baratron® General Purpose Pressure Transmitter (2.1 MB, PDF)
Drawings & CADs
- AA04A Dimensional Drawing (313.5 kB, PDF)
Manuals
- AA04A Pin-Outs (137.2 kB, PDF)
Ultra-High Velocity