pengenalan
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.

Rajah 1: Depan view of the Extech PRC30 Multifunction Process Calibrator, highlighting its display and control panel.
Ciri-ciri Produk
- 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.
Persediaan
Pemasangan Bateri
- Cari penutup petak bateri di bahagian belakang peranti.
- Buka penutup dengan menggelongsor atau membuka skru seperti yang ditunjukkan.
- Insert the required batteries (type not specified, but typically AA or AAA) ensuring correct polarity.
- Gantikan penutup petak bateri dengan selamat.
Arahan Operasi
Kawalan dan Paparan Atasview
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.
- Butang Anak Panah (Atas, Bawah, Kiri, Kanan): Used for navigation, adjusting values, and selecting options.
- Butang SET: Confirms selections or enters settings menus.
- 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.
Operasi Asas
- Hidupkan kuasa: Press the orange power button. The display will illuminate.
- Memilih Mod: Use the MODE (I/O) button to switch between input and output functions as required for your calibration task.
- Melaraskan Nilai: 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.
- Menukar Unit: Press the UNIT button to cycle through available measurement units (e.g., °F, °C).
- Pelarasan Sifar: Use the ZERO button to perform a zero adjustment for current measurements or to activate the display backlight.
- Fungsi Memori: Press the MEM button to save current readings or recall previously stored data.
- Matikan: 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.
Penyelenggaraan
- Pembersihan: Lap peranti dengan lembut, damp kain. Jangan gunakan pembersih atau pelarut yang melelas.
- Storan: Store the calibrator in a dry, cool environment when not in use. Remove batteries if storing for extended periods to prevent leakage.
- Penggantian Bateri: Replace batteries promptly when the low battery indicator appears on the display to ensure accurate operation.
- Penentukuran: Regular calibration by qualified personnel is recommended to maintain measurement accuracy.
Menyelesaikan masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Peranti tidak dihidupkan. | Bateri mati atau tidak dipasang dengan betul. | Periksa kekutuban bateri dan gantikan dengan bateri baru. |
| Bacaan yang tidak tepat. | Needs calibration; environmental interference; incorrect settings. | Perform zero adjustment; ensure stable environment; verify measurement settings; consider professional calibration. |
| Paparan kosong atau malap. | Bateri lemah; lampu latar dimatikan. | Replace batteries; press the ZERO button to activate backlight. |
Spesifikasi
- model: PRC30
- Penerangan: Penentukuran Proses Pelbagai fungsi
- Jenis Paparan: LCD matriks titik
- Dimensi (Panjang x Lebar x Tinggi): 6.375 in (15.9 cm) x 3.25 in (8 cm) x 1.75 in (4.4 cm)
- Julat Suhu Operasi: 41 hingga 104°F (5 hingga 40°C)
- Julat Kelembapan Operasi: <80%RH
- Sumber Kuasa: Bateri
- Asal: Buatan Taiwan
Waranti dan Sokongan
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 webtapak.





