TESZ TPP 40 Pneumatic Pressure Calibrator (-0.90 to 40 Bar)

TESZ TPP 40 Pneumatic Pressure Calibrator (-0.90 to 40 Bar)

The TESZ TPP 40 is a marine- and industrial-grade hand-operated pneumatic pressure calibrator engineered for high-precision comparative testing of instrumentation. Covering an operating envelope from -0.90 bar vacuum up to +40 bar gauge pressure (-26.5 inHg to 580 PSI), the TPP 40 provides clean, dry air generation without hydraulic fluid contamination.

Featuring dual-port topology, integrated vacuum/pressure changeover switching, and a high-resolution volumetric fine-adjustment vernier, this instrument enables marine instrumentation technicians and offshore automation engineers to execute exact multi-point gauge, switch, and transmitter calibrations at site.

Model Details

• Manufacturer / Brand: TESZ Instrumentation
• Model: TPP 40
• Manufacturer Part Number (MPN): TESZ-TPP40
• SKU / Reference ID: TPP40-CAL-KIT / FKM2238
• Generation Medium: Non-corrosive ambient air (clean, dry pneumatic operation)

Technical Specifications

Key Features

1. Bi-Directional Operation: Integrated two-way selector switch smoothly alternates between vacuum (-0.90 bar) and positive gauge pressure (up to +40 bar / 580 PSI) on a single manifold.
2. Ultra-Fine Volumetric Control: Machined micro-vernier mechanism delivers fine adjustment down to 1 mbar (0.01 kPa) sensitivity for pinpoint span/zero setting.
3. Contamination-Free Testing: Pure pneumatic medium prevents hydraulic oil or water ingress into delicate differential pressure cells, oxygen-clean lines, and electronic sensors.
4. Isolated Dual Ports: Dedicated master reference port (1/2″ BSP Female) and device-under-test port (1/4″ BSP Female) eliminate manifold cross-leakage and differential error.
5. Field-Hardened Construction: Anodized aluminum body and nickel-plated brass internals resist corrosive offshore salt-spray and heavy engine-room vibration.

Applications

• Marine Main Engine & Auxiliary Monitoring: Static bench and in-situ calibration of scavenge air pressure, starting air systems (up to 30/40 bar), jacket cooling water sensors, and lube oil manifold transducers.
• Boiler & Steam Automation: Testing burner fuel oil atomizing air pressure switches, combustion air transmitters, and boiler drum level differential pressure sensors.
• Inert Gas & Cargo Systems (IGS): Verifying deck water seal pressure/vacuum alarms, mast riser pressure transmitters, and inert gas header digital indicators.
• Control Valve Positioners & I/P Converters: Setting span, zero, and split-range loop response for 0.2 to 1.0 bar (3–15 psi) pneumatic actuators.
• General Industrial Metrology: Calibration of pressure indicators, test gauges, deadweight-comparative manometers, and pressure switches in petrochemical plants, utilities, and offshore platforms.

Digital Reference Indicators & Field Calibrators

• TESZ Reference Gauges: TPG-Series digital master manometers (Class 0.05 / 0.025).
• Fluke / Druck / Additel: Compatible with Fluke 700G Series, GE Druck DPI 104, Additel ADT681, SIKA D2, and Keller LEO-Record digital pressure gauges.
• Standard Process Transmitters: Direct port testing for Yokogawa DPharp EJA/EJX, Rosemount 3051S / 2088, ABB 266, and Endress+Hauser Cerabar series.

Part Number Cross-References

• Direct Equivalent: SIKA P40.2 / LR-Cal LPP 40 / SI Pressure TP1-40
• Extended Range Model: TESZ TPP 60 (-0.90 to 60 bar)
• Kit Assembly Number: TPP40-CASE-CALKIT

Frequently Asked Questions

What is the pressure and vacuum generation range of the TESZ TPP 40?

The TESZ TPP 40 generates negative vacuum down to -0.90 bar (-26.5 inHg) and positive pneumatic pressure up to +40 bar (+580 PSI) using clean ambient air.

How do I adjust pressure to precise fractional values on the TESZ TPP 40?

The unit features an integrated fine-adjustment vernier screw. Technicians pump the handle to reach approximate pressure, close the vent valve, and then rotate the volumetric vernier to achieve adjustments down to 1 mbar sensitivity.

Can the TESZ TPP 40 be used with liquids or hydraulic oil?

No. The TPP 40 is strictly a dry pneumatic pump. Introducing hydraulic oils, water, or solvents will swell the internal elastomers, clog the micro-bleed vent valve, and void accuracy tolerances. For hydraulic testing, use the TESZ T-HP series.

What connection fittings are included with the calibrator kit?

The main manifold features a 1/2″ Female BSP top port for master gauges and a 1/4″ Female BSP connection for the 1-meter flexible nylon test hose. Standard kits include NPT/BSP thread adapter sets and bonded sealing washers.

Is the TESZ TPP 40 accepted for vessel surveys by classification societies?

Yes. When paired with an ISO 17025 / NIST-traceable calibrated master gauge, the TPP 40 satisfies class survey requirements (DNV, LR, ABS, BV, ClassNK) for shipboard PMS instrumentation verification.