1. Uvod
The INSTRUKART Keller LEO2 Digital Pressure Gauge is a compact, battery-powered instrument designed for precise pressure measurement in various industrial applications, servicing, and calibration/testing. It features a highly accurate piezoresistive pressure cell, individually adjusted for optimal performance, ensuring a high level of accuracy. This manual provides essential information for the safe and effective use of your LEO2 Digital Pressure Gauge.
2. Varnostne informacije
WARNING: Please read this manual carefully before operating the device. Failure to follow instructions may result in damage to the device or personal injury.
- Naprave ne izpostavljajte ekstremnim temperaturam, vlagi ali korozivnim okoljem.
- Ensure the pressure connection is securely fastened before applying pressure.
- Do not exceed the specified pressure ranges.
- Replace batteries only with the recommended type (CR 2430) and ensure correct polarity.
- Do not attempt to disassemble or repair the device yourself. Refer servicing to qualified personnel.
3. Vsebina paketa
Preverite, ali so v vašem paketu prisotni vsi spodaj navedeni elementi:
- 1 x Keller LEO2 Digital Pressure Gauge
- 1 x Navodila za uporabo
- 1 x G 1/4" Adapter
4. Značilnosti izdelka
The Keller LEO2 Digital Pressure Gauge offers a range of advanced features for reliable pressure measurement:
- Microprocessor-Controlled: Ensures highly accurate and versatile pressure measurement.
- Digitalna indikacija: Clear display of actual pressure, along with maximum (Max.) and minimum (Min.) pressure values recorded since the last reset.
- Piezoresistive Pressure Transducer: Equipped with an internal EEPROM for precise and stable readings.
- Wide Pressure Ranges: Available in various ranges, including 0 to 100 bar (resolution 1 mbar), -1 to 30 bar (resolution 10 mbar), 0 to 300 bar (resolution 100 mbar), and 0 to 700 bar (resolution 200 mbar).
- Dolga življenjska doba baterije: Provides up to 1000 hours of continuous operation using 3V CR 2430 batteries.
- Visoka natančnost: Less than 0.1 %FS (Full Scale).
- Robustna zasnova: IP 65 protection rating, suitable for various industrial environments.
- Kompaktne dimenzije: Measures 59 x 95 x 32 mm and weighs 125 g.
- Standard Pressure Connection: Features a 7/16"-20 UNF connection, with a G 1/4" adapter included for versatility.
5. Izdelek je končanview

Slika 1: Spredaj view of the LEO2 Digital Pressure Gauge, displaying current and maximum pressure values.

Slika 2: stran view illustrating the robust pressure connection at the base of the gauge.

Slika 3: Spredaj view of the gauge with the G 1/4" adapter securely attached.

Slika 4: Pod kotom view highlighting the clear digital display and user interface buttons.

Slika 5: Zadaj view, indicating the location of the battery compartment for CR 2430 batteries.

Figure 6: The LEO2 gauge connected to a flexible hose, demonstrating its adaptability for various setups.

Figure 7: The LEO2 Digital Pressure Gauge neatly stored within its protective carrying case.
6. Nastavitev
6.1. Namestitev baterije
- Locate the battery compartment cover at the rear of the device (refer to Figure 5).
- Previdno odprite pokrov.
- Insert the 3V CR 2430 batteries, ensuring correct polarity as indicated inside the compartment.
- Varno zaprite pokrov prostora za baterije.
6.2. Tlačni priključek
- The LEO2 features a 7/16"-20 UNF pressure connection. An adapter for G 1/4" is included for broader compatibility.
- Attach the appropriate adapter (if needed) to the gauge's pressure connection.
- Securely fasten the gauge (with or without adapter) to your pressure source. Ensure all connections are tight and leak-free. Use appropriate sealing materials (e.g., PTFE tape) if necessary to prevent leaks.
7. Delovanje
7.1. Vklop/izklop
The LEO2 Digital Pressure Gauge powers on automatically when any button is pressed. To conserve battery life, the device will automatically power off after a period of inactivity.
7.2. Prikaz odčitkov
The gauge features a dual display:
- Zgornji zaslon: Shows the current actual pressure reading.
- Spodnji zaslon: Shows either the maximum (MAX) or minimum (MIN) pressure recorded since the last reset.
7.3. Selecting Display Mode (MAX/MIN)
Use the 'SELECT' button (typically on the left) to toggle between displaying the MAX and MIN pressure values on the bottom screen.
7.4. Resetting MAX/MIN Values
To clear the recorded MAX and MIN pressure values, press and hold the 'ENTER' button (typically on the right) until the values reset.
8. Vzdrževanje
8.1. Zamenjava baterije
When the battery indicator appears on the display or the device fails to power on, it is time to replace the batteries. Refer to section 6.1 'Battery Installation' for detailed instructions.
8.2. Čiščenje
Zunanjost naprave očistite z mehko, damp krpo. Ne uporabljajte abrazivnih čistil, topil ali agresivnih kemikalij, saj lahko poškodujejo casing or display. Ensure no liquid enters the pressure connection or display area.
8.3. Shranjevanje
When not in use for extended periods, store the LEO2 Digital Pressure Gauge in its protective carrying case (refer to Figure 7) in a dry, cool place, away from direct sunlight, extreme temperatures, and corrosive substances.
9. Odpravljanje težav
If you encounter issues with your LEO2 Digital Pressure Gauge, refer to the following common troubleshooting steps:
- No Display / Device Not Powering On:
- Preverite napolnjenost baterije.
- Prepričajte se, da so baterije pravilno nameščene z ustrezno polarnostjo.
- Replace batteries with new CR 2430 cells if necessary.
- Netočni odčitki:
- Preverite, ali je tlačni priključek varen in ne pušča.
- Prepričajte se, da naprava deluje znotraj določenih temperaturnih in tlačnih območij.
- Check for any physical damage to the sensor or connection.
- Display Errors or Unresponsive Buttons:
- Try resetting the device by temporarily removing and then reinserting the batteries.
- Če težave ne odpravite, se za nadaljnjo pomoč obrnite na podporo strankam.
10. Specifikacije
| Funkcija | Specifikacija |
|---|---|
| Znamka | INSTRUKART |
| Model | LEO2 |
| Dimenzije izdelka | 3.74 x 2.32 x 1.26 palca (59 x 95 x 32 mm) |
| Teža predmeta | 125 gramov (4.41 unč) |
| Material | Stainless Steel (for pressure connection) |
| Natančnost | < 0.1 %FS |
| Delovna temperatura | -20 to 70 °C / 0 to 50 °C |
| Napajalnik | 3V batteries, Type CR 2430 |
| Življenjska doba baterije | 1000 ure neprekinjenega delovanja |
| Ocena zaščite | IP 65 |
| Tlačna povezava | 7/16”-20 UNF (Adapter G 1/4” included) |
| Pressure Ranges (Exampmanj) | 0 to 100 bar (Resolution: 1 mbar) -1 to 30 bar (Resolution: 10 mbar) 0 to 300 bar (Resolution: 100 mbar) 0 to 700 bar (Resolution: 200 mbar) |
11. Garancija in podpora
For detailed warranty information, technical support, or service inquiries regarding your INSTRUKART Keller LEO2 Digital Pressure Gauge, please contact INSTRUKART customer service. Please retain your purchase receipt as proof of purchase for warranty claims.
