Uvod
The Extech PRC30 is a handheld multifunction process calibrator designed for verifying the operation of various industrial instruments. It is suitable for use with sensors, thermocouple probes, controllers, panel meters, and other testing tools, particularly in temperature control and process troubleshooting applications.

Slika 1: Prednja strana view of the Extech PRC30 Multifunction Process Calibrator, highlighting its display and control panel.
Značajke proizvoda
- Multifunction capability for various process calibration tasks.
- Handheld design for portability and ease of use.
- Dot matrix LCD for clear display of readings and settings.
- Intuitive button layout for operation.
Postavljanje
Ugradnja baterije
- Pronađite poklopac odjeljka za baterije na stražnjoj strani uređaja.
- Open the cover by sliding or unscrewing it as indicated.
- Insert the required batteries (type not specified, but typically AA or AAA) ensuring correct polarity.
- Čvrsto namjestite poklopac odjeljka za baterije.
Upute za rad
Kontrole i prikaz iznadview
The Extech PRC30 features a clear dot matrix LCD and a user-friendly control panel. Refer to Figure 1 for button locations.
- Power Button (Orange, circular with power symbol): Press to turn the calibrator ON or OFF.
- Tipke sa strelicama (gore, dolje, lijevo, desno): Used for navigation, adjusting values, and selecting options.
- Gumb SET: Potvrđuje odabire ili ulazi u izbornike postavki.
- UNIT Button (under TYPE): Changes the measurement unit (e.g., °F, °C).
- I/O Button (under MODE): Toggles between input and output modes.
- MEM Button (under STEP): Accesses memory functions, such as saving or recalling data.
- ZERO Button (under ZERO, with lightbulb symbol): Performs zero adjustment or backlight control.
- CJC (Cold Junction Compensation) Indicator: Indicates the status of cold junction compensation.
- APO (Auto Power Off) Indicator: Shows if the auto power off function is active.
- SOURCE Indicator: Indicates the device is in source mode.
- MEM.25 Indicator: Likely indicates a memory location or a specific memory function.
Osnovna operacija
- Uključivanje: Press the orange power button. The display will illuminate.
- Odabir načina rada: Use the MODE (I/O) button to switch between input and output functions as required for your calibration task.
- Prilagođavanje vrijednosti: Use the Up/Down arrow buttons to adjust output values or navigate through menu options. The Left/Right arrow buttons may be used for digit selection or fine-tuning.
- Promjena jedinica: Press the UNIT button to cycle through available measurement units (e.g., °F, °C).
- Podešavanje nule: Use the ZERO button to perform a zero adjustment for current measurements or to activate the display backlight.
- Memorijske funkcije: Press the MEM button to save current readings or recall previously stored data.
- Isključivanje: Press and hold the orange power button until the display turns off. The Auto Power Off (APO) function will also turn off the device after a period of inactivity.
Održavanje
- Čišćenje: Obrišite uređaj mekom, damp tkanina. Nemojte koristiti abrazivna sredstva za čišćenje ili otapala.
- Skladištenje: Store the calibrator in a dry, cool environment when not in use. Remove batteries if storing for extended periods to prevent leakage.
- Zamjena baterije: Replace batteries promptly when the low battery indicator appears on the display to ensure accurate operation.
- Kalibriranje: Preporučuje se redovita kalibracija od strane kvalificiranog osoblja kako bi se održala točnost mjerenja.
Rješavanje problema
| Problem | Mogući uzrok | Otopina |
|---|---|---|
| Uređaj se ne uključuje. | Prazne ili nepravilno instalirane baterije. | Provjerite polaritet baterija i zamijenite ih novima. |
| Netočna očitanja. | Needs calibration; environmental interference; incorrect settings. | Perform zero adjustment; ensure stable environment; verify measurement settings; consider professional calibration. |
| Zaslon je prazan ili taman. | Low battery; backlight off. | Replace batteries; press the ZERO button to activate backlight. |
Tehnički podaci
- Model: PRC30
- Opis: Višenamjenski kalibrator procesa
- Vrsta zaslona: Matrični LCD
- Dimenzije (duljina x širina x visina): 6.375 in (15.9 cm) x 3.25 in (8 cm) x 1.75 in (4.4 cm)
- Raspon radne temperature: 41 do 104°F (5 do 40°C)
- Radni raspon vlažnosti: <80% RH
- Izvor napajanja: Baterije
- Podrijetlo: Proizvedeno u Tajvanu
Jamstvo i podrška
The Extech PRC30 Multifunction Process Calibrator comes with a 1-Year Universal Guarantee.
For technical support, service, or warranty claims, please refer to the contact information provided with your purchase documentation or visit the official Extech Instruments webmjesto.





