This product is no longer available, please see successor product SF6 LEAKCHECK P1:p

The GASCHECK P1 is a precise, highly sensitive measuring instrument that avoids the disadvantages of previously known leak detectors. It has been specially developed for the quantitative measurement of SF6 leaks. By using a NIC detector, GASCHECK P1 has the following properties:

  • No radioactive source or gas supply required
  • Immunity against 100% SF6 concentration - the P1 is ready for measurement after a few seconds with no loss of sensitivity
  • Very short response and recovery times, no warm-up or run-in time required

The primary objective in the development of the P1 was the combination of maximum reliability and measurement confidence with convenient, easy operation. Therefore, P1 permanently monitors all parameters relevant for measurement and relieves the user by reducing the necessary operating and control steps to a minimum.

The LCD touch screen integrated in the base unit enables intuitive and convenient input of parameters in addition to the large area measurement value display. Buttons or keyboards are displayed as needed. Detailed knowledge of setup procedures is therefore not mandatory. The parameterization is protected by passwords in several levels, unauthorized persons cannot manipulate the settings.

P1 Handgerät

All parts of the system subject to wear and tear are accommodated in the snap-on SmartSensor. It can be replaced within a few seconds. As a result, maintenance intervals are longer and the availability of the P1 is significantly increased. The 3 sensors included in the scope of delivery ensure that the P1 is permanently ready for use.

Measuring Operation
For regular measuring operation, the only thing you need to do is switch the instrument on and off. Since the operator primarily does not need to measure a leak, but first to search and find it, P1 automatically starts up in "search mode". In this mode, when the sniffer probe approaches a leak, the audio signal and optional vibration alarm as well as the analogue pointer all indicate full scale, signaling very clearly that an unknown leak has been found. Once spotted, the operator switches to "measurement mode" by pressing a key on the handset. The leak rate is now displayed in analogue and digital form in the desired unit of measurement, and a clear pass/fail indication based on the selected alarm threshold is given.

The P1 permanently monitors all relevant factors for measurement. When important values such as the intake air flow deviate from the setpoint, P1 first tries to compensate for the deviation. Only if this is not possible, the instrument will quit measurement and report the error.

Unlimited Operation
The P1 is suitable for worldwide use due to the integrated wide range power supply from 100 to 240V - 50/60 Hz. The device also works for approx. 10 hours in mains independent battery operation. The charging process does not require monitoring, and the GASCHECK P1 may remain connected to mains permanently. Where applicable, a standby mode can be selected to partially power down the P1 when the handset is deposited for an adjustable period of time, saving both SmartSensor and battery life time. Return to normal operation takes place automatically when the hand unit is picked up again.

SF6 GASCHECK P1 - Features

  • Maximum availability due to exchangeable SmartSensors
  • Highly sensitive 1.0E-8 mbar l/s and 0.1 ppm for SF6 
  • Very short response and recovery times
  • No warm-up or run-in time required
  • Very convenient to use
  • Immunity against 100% SF6 concentration
  • Parameterization protected by passwords in different levels
  • Easy input of parameters via LCD touch screen
  • World's top-selling SF6 leak detector 

Technical Data Overview

Detector NIC
Sensitivity 1.0E-7 ml/s - 1.0 ppm / optional HIGHsens 1.0E-8 ml/s - 0.1 ppm
Response time t90 approx. 0.5 s
Recovery time t10 approx. 0.5 s
Alarms Sound output, status LEDs, vibration alarm in the handset
Display Handset analogue, base unit digital, full text display
Self-diagnostics Intake volume, sensor life, battery status, hardware error
Battery Integrated rechargeable battery with automatic charge control
Storage -10°C.... 60°C
Operating temperature 0°C.... 50°C
Operating voltage 100-240V 50/60Hz
Dimensions Console 340 x 350 x 170 mm
Weight Console 12,5 kg
Handset 563 g

SF6 GASCHECK P1 - Applications

SF6 GASCHECK P1 im Einsatz
  • Leak detection and measurement on SF6 filled components
  • Leak detection and measurement on GIS
  • Leak detection and measurement on GIL
  • Leak-tightness measurement and leak detection on military equipment, e. g. torpedoes
  • Inspection of fume cupboards
  • Leak tightness measurement on FM 200 filled fire extinguishing systems 
  • and many more

Delivery Scope

1 pc. SF6 GASCHECK P1 Leak Detector
1 pc. Hand unit, 5m cable, plug-in
3 pcs. SmartSensor, calibrated
1 pc. Mains connection cable
1 pc. Zarges Rollbox with insert
1 pc. User manual in English
1 pc. Calibration Certificate
Delivery time No longer available - Replaced by SF6 LEAKCHECK P1:p
Warranty 12 months


Part No.: P1-100-0000
1 pc. P1/P1:p SmartSensor, complete, pre-calibrated with calibration certificate, front filter und long cap 

Leads Extender, 5 m

Part No.: P1-400-0008
1 pc. P1/P1:p leads extender, with Lemo connector, length 5 m

Leads Extender, 10 m

Part No.: P1-400-0009
1 pc. P1/P1:p leads extender, with Lemo connector, length 10 m

Leads Extender, 15 m

Part No.: P1-400-00010
1 pc. P1/P1:p leads extender, with Lemo connector, length 15 m

Probe Extension, 300 mm

Part No.: P1-400-0011
1 pc. probe extension, flexible, outer diameter 6 mm, inner diameter 0.25 mm, stainless steel capillary, length 300 mm

Probe Extension, 500 mm

Part No.: P1-400-0012
1 pc. probe extension, flexible, outer diameter 6 mm, inner diameter 0.25 mm, stainless steel capillary, length 500 mm

Front Filter

Part No.: P1-100-0005
10 pcs. P1/P1:p front filter, 5 Layer 0.2 my

Hose Filter

Part No.: P1-100-0011
10 pcs. P1/P1:p hose filter for probe extender 300 / 500 mm

Long Cap

Part No.: P1-100-0004
1 pc. P1/P1:p long cap with stainless steel tip, PTFE inliner


Leak Calibrator SF6

1 pc. CALCHECK leak calibrator for periodic test and calibration

Would you like more information or have any questions about the product?