The Fumpa Gauge will read tyre pressures up to 250psi (17.2 Bar).  It accepts both Presta and Schrader valves and has a clever pressure release mechanism to reduct pressures either very quickland or quite slowly.

The Fumpa Gauge is designed to clip onto your keyring or bag so you can take it anywhere.  It's USB Type-C rechargable so no need to worry about dangerous coin cell batteries going flat.

Package Contents

When opening the box, the you find find the following (refer to the image below):

• 1 x Fumpa Gauge tyre gauge
• 1 x USB Type C cable
• 1 x Clip to connect your gauge to your bag or key ring

Turning on the gauge:

Press the button to turn the Fumpa Gauge on. The display will initially display “BAt”, followed by the charge of the internal battery (from 0-100). The display will then show the pressure of the object that it is connected to.

It is important to turn the gauge on before connecting it to a tyre. Upon startup the gauge with calibrate the zero gauge pressure reading. Connecting the gauge to a tyre and then turning it on will result in an incorrect pressure reading. 

Changing pressure units:

A quick press of the button changes pressure units from psi, to kPa, to Bar, then back to psi. The display will indicate a pressure unit change by flashing indicator lights towards the particular units marking to the right of the display. Changing pressure units is stored in Fumpa Gauge's memory. So (for example) if you select Bar as your pressure unit and you then turn the gauge off, upon turning the gauge back on you will find Bar as your default pressure unit.

Reading tyre pressure:

After turning the Fumpa Gauge on, connect the gauge to a tyre by pushing its nozzle onto the tyres valve.

The red seal inside the Fumpa Gauge's nozzle has been designed to minimise the amount of air that is released when connecting the gauge to the tyres valve.

We recommend locating the tyre's valve near the top of the tyre and standing over the tyre.  This method also works best for tubeless tyres as there is less chance in sealand getting into the gauge.

The maximum pressure of the Fumpa Gauge is 250psi (1720kPa or 17.2Bar).  Do not subject Fumpa Gague beyond this pressure.  Please note if pressure goes beyond 999kPa the kPa unit display can no longer be used.  If pressure does go beyond 999kPa, the kPa units will display "Hi".  Psi and Bar pressure reading however can still be displayed beyond this pressure.

When the gauge is connected to the tyre and pressure is being shown on the display, the user can press and hold the button. This will save the pressure reading on the display, even when the user releases the gauge from the tyre. This can be useful if the valve is positioned in a hard-to-see location. The user can connect the gauge to the tyre, obtain a pressure reading, hold the button to save the pressure reading and bring the gauge closer to their eyes for viewing.

Releasing air from a tyre: 

The Fumpa Gauge can be used to release air from a tyre and to monitor the reducted tyre pressure at the same time.  This is acheived by angling the gauge relative to the valve.  Angline the gauge releases air from around the gauge's seal.  This method works for both Presta and Shrader valves and allows for either lots of air to be released, or just a small amount, depending on how much the gauge is angled. 

Turning the gauge OFF: 

The Fumpa Gauge will automatically turn off after 15 seconds if the pressure reading on its display is less than 3psi (20kPa or 0.2Bar).  So simplistically, if the gauge is not connected to anything, it will turn off by itself.

If the Fumpa Gauge reads a pressure greater than 3psi, the gauge will stay on until the battery is flat.  This allows the gauge to be connected to a manifold (for example) to continually measure pressure.  Connecting the gauge to a manifold is easily acheived by unscrewing the gauge's nozzle and taking advantage of the 1/8" BSPP (G1/8") male thread with O Ring seal. Below shows the gauge with the nozzle removed.

The Fumpa Gauge can be used whilst being charged via USB cable but please note that the charging circuit may introduce unwanted noise to the gauge, whic may result in pressure reading fluctuations.

To manually turn of the gauge, press and hold the button for 10 seconds. 

Charging Fumpa Gauge:

Charge trhe Fumpa Gauge by connecting the supplied USB Type C cable to the USB Charge Port (see below). Connect the other end of the USB cable to a PC or USB wall charger (not supplied). The ON button will glow red, indicating that the Fumpa Gauge is connected to the charger. The button will cease glowing when theFumpa Gauge is fully charged. Using a 5V, 2Amp supply, the Fumpa Gauge should be recharged in 30 minutes.

PLEASE NOTE: 

• Never leave your gauge charging unattended!
• Always disconnect the USB charge cable before use.
• Counterfeit wall chargers pose a fire risk and can damage your pump!
• Only charge your gauge using wall chargers purchased from reputable consumer electronics stores.
• Ensure your charger is marked with at least one of these symbols: 

Battery:

Fumpa Gauge is powered via a rechargeable lithium battery. Fumpa Gauge includes battery protection circuitry to ensure safe operation of the battery. For a once-a-week user, the battery should last a number years.

Warranty:

Fumpa Gauge comes complete with a twelve month warranty on all parts. We will repair possible faults free of charge within the warranty period, as long as the faults are caused by material defects or defective workmanship. Warranty claims should be addressed to i[email protected] 

Troubleshooting:

• Fumpa Gauge won't turn on - Battery required charging
• Fumpa Gauge is reading zero pressure when connected to a pressurised tyre - Allow the gauge to turn off, then turn the gauge back on when it is not connected to the tyre. This is very important.
• Air escapes from around the nozzle - A new seal inside the nozzle is required. Go to https://www.c1south.co.nz for new seal sales.

If the gauge behaves unexpectedly, please turn it off and contact [email protected]