Magnum Pro M-80 is a precise low volume pressure chamber designed for highly sensitive pressure and vacuum calibration applications. Covering a range from near absolute vacuum to 80 psi / approximately 5.5 bar, the M-80 is particularly suitable for applications where extremely fine pressure adjustment, high stability and low internal volume are essential.
Unlike a conventional pneumatic hand pump, the Magnum Pro M-80 generates and adjusts pressure through a precisely controlled low-volume chamber. By rotating the large adjustment handle, the internal volume is changed, allowing the operator to increase or decrease pressure or vacuum with exceptionally fine control.
The M-80 provides a specified resolution of 0.0001 psi, making it particularly suitable for sensitive low-pressure calibration applications.
Two 1/8″ NPT female pressure ports allow a reference instrument and device under test to be connected to the same pressure system. This creates a compact comparison calibration setup for pressure gauges, calibrators, transmitters, sensors and other low-pressure measuring instruments.
The robust outer housing and dual O-ring design are engineered for excellent sealing and smooth operation. The M-80 can be mounted permanently on a calibration bench or used as a portable pressure source. With a weight of approximately 3.5 lb / 1.59 kg, it remains convenient for field applications.
For faster adjustment across the complete pressure range, an optional power drive is available. This motorized drive engages with the top of the adjustment handle and allows the chamber volume to be changed rapidly before final pressure adjustment is performed.
At europascal, the Magnum Pro M-80 can be combined with a suitable precision reference pressure instrument to create a highly sensitive low-pressure comparison calibration system. For professional calibration and metrological traceability, visit the europascal Calibration Service.
Your Benefits at a Glance
The Magnum Pro M-80 combines exceptionally fine pressure adjustment with a compact low-volume design.
Key advantages include:
- Low volume pressure chamber
- Pressure and vacuum generation
- Range from near absolute vacuum to 80 psi
- Maximum positive pressure approximately 5.5 bar
- Vacuum capability approximately 30 inHg
- Extremely fine pressure adjustment
- Specified resolution of 0.0001 psi
- Excellent stability for low-pressure calibration
- Two 1/8″ NPT female pressure ports
- Separate connections for reference and process/DUT
- Dual O-ring sealing system
- Smooth mechanical operation
- Rugged outer housing
- Viewing window
- Manual pressure and vacuum adjustment
- Optional power drive
- Rechargeable power drive available in kit configuration
- Bench mountable
- Portable design
- Approx. 1.59 kg weight
- No routine maintenance required
- Suitable for pressure gauges and calibrators
- Made in the USA
Pressure Range from Vacuum to 80 psi
The Magnum Pro M-80 covers a pressure range from approximately:
30 inHg vacuum to 80 psi positive pressure.
The maximum positive pressure corresponds to approximately:
5.5 bar.
This range makes the M-80 particularly useful for low-pressure instruments that require much finer pressure control than is typically available from conventional hand-operated pressure pumps.
Near Absolute Vacuum
The lower end of the operating range extends toward:
near absolute vacuum.
This allows the M-80 to be used not only for positive gauge pressure applications but also for vacuum calibration.
Typical applications include:
- Vacuum gauges
- Compound pressure gauges
- Low-pressure sensors
- Pressure transmitters
- Digital pressure indicators
- Pressure calibrators
One M-80 can therefore provide both vacuum and positive pressure generation within its specified range.
Extremely High Resolution
A major advantage of the Magnum Pro M-80 is its extremely fine pressure adjustment.
Magnum Pro specifies a resolution of:
0.0001 psi.
This corresponds to approximately:
0.0069 mbar.
Such fine mechanical pressure adjustment makes the M-80 particularly interesting for low-pressure metrology.
Instead of generating pressure with repeated strokes of a hand pump, the internal volume is changed gradually through the adjustment mechanism.
This provides the operator with very fine control over the generated pressure.
Low Volume Pressure Chamber
The M-80 is not a conventional pneumatic calibration hand pump.
It is a:
Low Volume Pressure Chamber.
The low-volume concept is important because small changes in chamber volume can produce precisely controlled changes in pressure.
This makes the M-80 especially suitable for applications where a conventional hand pump would provide too coarse an adjustment.
Pressure Generation by Volume Adjustment
The operating principle of the Magnum Pro M-80 is straightforward.
Rotating the main adjustment handle changes the internal chamber volume.
Depending on the direction of rotation, the operator can generate:
positive pressure
or:
vacuum.
Because the volume changes gradually, pressure can be approached very precisely.
This provides excellent control when approaching sensitive calibration points.
Comparison Calibration
The M-80 can be used as the pressure source for comparison calibration.
A typical setup consists of:
Magnum Pro M-80 + Reference Instrument + Device Under Test
The M-80 generates and adjusts the pressure.
The reference instrument measures the generated pressure.
The DUT is exposed to the same pressure.
The indication of the DUT can then be compared directly with the reference value.
Pressure Generator – Not a Pressure Reference
It is important to distinguish between pressure generation and pressure measurement.
The:
Magnum Pro M-80 generates and adjusts pressure or vacuum.
The:
reference instrument determines the actual pressure value.
The M-80 therefore does not replace a calibrated pressure reference.
The accuracy and measurement uncertainty of the complete calibration system depend primarily on the connected reference instrument and the complete uncertainty budget.
Two Pressure Connections
The Magnum Pro M-80 provides:
two 1/8″ NPT female ports.
These ports are designated for:
Gauge
and:
Process.
This arrangement is ideal for comparison calibration.
A precision reference pressure gauge or calibrator can be connected to one port.
The device under test can be connected to the other.
Both instruments are then exposed to the same pressure.
Low-Pressure Gauge Calibration
The M-80 is particularly suitable for calibrating low-pressure gauges.
The reference instrument and DUT are connected to the two pressure ports.
The operator then changes the chamber volume until the desired pressure is reached.
Because of the extremely fine adjustment capability, defined calibration points can be approached precisely.
The DUT indication can then be compared with the reference.
Differential Pressure Applications
The very fine pressure control of the Magnum Pro M-80 also makes it useful for selected differential pressure applications.
Low differential pressures can be difficult to generate and adjust using conventional pneumatic hand pumps.
The low-volume adjustment principle provides much finer control.
A suitable differential pressure reference is required to measure the generated differential pressure accurately.
Pressure Transmitter Calibration
The M-80 can also provide the pneumatic pressure input required for low-pressure transmitter calibration.
A typical system can consist of:
M-80 + Pressure Reference + Electrical Calibrator + Pressure Transmitter
The M-80 generates the pressure.
The pressure reference determines the actual applied pressure.
The electrical calibrator measures the transmitter output.
For a conventional process transmitter, this may be a:
4 to 20 mA
signal.
Pressure Sensor Calibration
Sensitive low-pressure sensors can also be tested using the M-80.
The controlled volume change allows small pressure increments to be generated.
The reference instrument measures the applied pressure while the electrical output of the sensor is recorded.
This makes the system useful for characterization as well as calibration applications.
Excellent Pressure Stability
Magnum Pro specifically highlights the M-80 for its:
excellent stability for low-pressure calibrations.
Pressure stability is particularly important at low pressures because even small leaks, temperature changes or volume changes can produce significant relative pressure changes.
The mechanical design of the M-80 is optimized for these sensitive applications.
Dual O-Ring Design
The Magnum Pro M-80 incorporates a:
dual O-ring design.
The dual sealing system is designed to minimize leakage while providing smooth mechanical operation.
Low leakage is particularly important for low-pressure and vacuum applications.
Even a small leak can cause noticeable drift when working with small pressure differences.
Smooth Operation
The dual O-ring system also contributes to the smooth mechanical feel of the pressure adjustment mechanism.
The operator can gradually increase or decrease pressure without the abrupt pressure changes that may occur with less sensitive hand pumps.
This provides improved control when approaching a calibration point.
Rugged Outer Housing
The M-80 uses a rugged housing designed for professional calibration applications.
The documented construction materials include:
- Delrin® plastic
- Nitrile O-rings
- Brass
- Aluminum
- Polycarbonate
This combination provides a lightweight but durable mechanical system.
Viewing Window
The Magnum Pro M-80 incorporates a:
viewing window.
This allows the operator to observe the position of the internal mechanism during adjustment.
The feature provides a visual indication of the chamber position and available adjustment range.
Manual Operation
The M-80 can be operated entirely manually.
The operator rotates the large handle to increase or decrease pressure.
No electrical power is required for basic operation.
This makes the M-80 suitable for both laboratory and field applications.
Optional Power Drive
For applications where the complete pressure range must be traversed frequently, Magnum Pro offers an:
optional power drive.
The drive can be inserted into the dedicated opening in the top of the adjustment knob.
It then rotates the adjustment mechanism automatically.
This significantly reduces the amount of manual turning required when making large pressure changes.
Rechargeable Power Drive
The power drive supplied with the appropriate kit configuration uses a:
rechargeable lithium battery.
A charger is included with the M-80KT configuration.
The power drive should be operated at low speed to protect the adjustment mechanism.
Final pressure adjustment can then be performed precisely while monitoring the connected reference instrument.
Bench Mountable
The Magnum Pro M-80 is designed for permanent or semi-permanent installation on a calibration bench.
Mounting holes are provided in the base.
This allows the chamber to be securely attached to a work surface.
Bench mounting can improve convenience when the M-80 is used frequently in a calibration laboratory.
Portable Field Use
Despite its suitability for bench mounting, the M-80 is also portable.
Its weight is approximately:
3.5 lb / 1.59 kg.
This makes it possible to transport the pressure chamber to different calibration locations.
The M-80 can therefore be used for both laboratory calibration and mobile service applications.
M-80KT Complete Kit
Magnum Pro offers the:
M-80KT
configuration for users who require a more complete calibration setup.
The documented M-80KT includes:
- M-80 pressure chamber
- Ball valve
- Two non-stretch hoses
- Hose fittings
- Portable handheld power drive
- Rechargeable lithium battery
- Battery charger
This configuration provides the components required for convenient portable operation.
Non-Stretch Hoses
The M-80KT includes:
two 2-foot non-stretch hoses.
Low-volume and low-pressure calibration systems can be sensitive to changes in hose volume.
Using suitable low-expansion hoses helps reduce unwanted volume changes during calibration.
This supports improved stability of the complete pneumatic system.
No Liquids
An important operating requirement for the Magnum Pro M-80 is:
Do not use with liquids.
The M-80 is intended for pneumatic pressure and vacuum applications.
Liquids should not be introduced into the pressure chamber.
This differentiates the M-80 clearly from hydraulic calibration pumps such as the Magnum Pro M-10.
M-80 vs. M-10
The Magnum Pro M-80 and Magnum Pro M-10 are designed for completely different pressure applications.
The:
Magnum Pro M-80
is a pneumatic low-volume pressure chamber covering approximately:
vacuum to 80 psi / 5.5 bar.
Its key advantage is extremely fine pressure adjustment.
The:
Magnum Pro M-10
is a hydraulic calibration hand pump capable of generating:
up to 10,000 psi / 700 bar.
The M-10 is designed for high hydraulic pressures, while the M-80 is designed for highly sensitive low-pressure and vacuum applications.
M-80 vs. Conventional Hand Pump
A conventional pneumatic hand pump generates pressure by repeatedly operating a pump mechanism.
This approach is fast and practical but can make extremely small pressure changes difficult.
The M-80 follows a different principle.
Pressure is changed through controlled displacement of a small internal volume.
This makes the M-80 particularly suitable when the main requirement is:
fine pressure control rather than rapid pressure generation.
Technical Highlights
| Feature | Magnum Pro M-80 |
|---|---|
| Product type | Low Volume Pressure Chamber |
| Medium | Gas / pneumatic |
| Pressure range | Approx. 30 inHg vacuum to 80 psi |
| Maximum positive pressure | Approx. 5.5 bar |
| Resolution | 0.0001 psi |
| Approx. metric resolution | 0.0069 mbar |
| Pressure ports | 2 |
| Connections | 1/8″ NPT female |
| Port functions | Gauge and Process |
| Sealing | Dual O-rings |
| Viewing window | Yes |
| Manual operation | Yes |
| Optional power drive | Yes |
| Bench mounting | Yes |
| Weight | Approx. 3.5 lb / 1.59 kg |
| Liquids permitted | No |
| Field use | Yes |
| Laboratory use | Yes |
| Reference measurement | External reference required |
| Country of manufacture | USA |
Typical Applications
The Magnum Pro M-80 is suitable for:
- Low-pressure calibration
- Vacuum calibration
- Pressure gauge calibration
- Digital pressure gauge calibration
- Pressure transmitter calibration
- Low-pressure sensor testing
- Pressure transducer testing
- Differential pressure applications
- Pressure switch testing
- Comparison calibration
- Laboratory calibration
- Field calibration
- Process instrumentation
- Maintenance applications
- Quality assurance
- Research and development
- Low-pressure metrology
Why Choose the Magnum Pro M-80?
The Magnum Pro M-80 provides a specialized solution for applications where extremely fine control of low pneumatic pressure or vacuum is required.
Its range extends from near absolute vacuum to 80 psi / approximately 5.5 bar, covering a broad range of low-pressure calibration tasks.
A specified resolution of 0.0001 psi enables exceptionally small pressure changes to be generated. This makes the M-80 particularly suitable for sensitive pressure gauges, transmitters, sensors and calibration instruments.
The low-volume chamber principle provides finer control than a conventional hand pump when approaching small pressure increments.
Two 1/8″ NPT female ports allow a reference instrument and device under test to be connected simultaneously for comparison calibration.
A rugged housing and dual O-ring sealing system provide reliable operation and help minimize pressure leakage.
The M-80 can be mounted permanently on a calibration bench or transported for field use. At approximately 1.59 kg, the chamber remains compact and portable.
For applications requiring faster movement across the pressure range, the optional rechargeable power drive reduces the amount of manual adjustment required.
The M-80KT configuration further expands the system with a ball valve, non-stretch hoses, fittings, power drive, rechargeable lithium battery and charger.
At europascal, the Magnum Pro M-80 can be combined with suitable precision pressure references to create a highly sensitive low-pressure calibration system.
For professional calibration and metrological traceability, visit the europascal Calibration Service.
