1. Pengenalan
The HT Instruments IRONMETER is a professional and precise True RMS (TRMS) digital multimeter designed for robust performance. Its shock-resistant and break-proof casing ensures durability in demanding environments. This compact, portable device integrates all essential functions of a true RMS multimeter, making it suitable for a wide range of electrical applications.
The IRONMETER complies with IEC/EN 61010-1 standards and is rated for Overvoltage Category CAT III 600 V, ensuring safe and reliable operation.
2. Maklumat Keselamatan Penting
Sentiasa patuhi langkah berjaga-jaga keselamatan berikut untuk mengelakkan kecederaan diri dan kerosakan pada instrumen:
- Read this manual thoroughly before using the multimeter.
- Jangan melebihi had input maksimum untuk sebarang fungsi.
- Never use the meter if it or the test leads appear damaged.
- Berhati-hati semasa bekerja dengan voltagadalah melebihi 30V AC RMS, puncak 42V atau 60V DC. Ini voltagia menimbulkan bahaya kejutan.
- Sentiasa putuskan sambungan petunjuk ujian daripada litar sebelum menukar fungsi atau julat.
- Pastikan fungsi dan julat yang betul dipilih untuk pengukuran.
- Gantikan bateri dengan segera apabila penunjuk bateri rendah muncul.
- Jangan kendalikan meter dalam persekitaran gas meletup, wap atau habuk.
3. Kandungan Pakej
Sahkan bahawa semua item ada dan tidak rosak semasa membongkar:
- 1 x HT Instruments IRONMETER Digital Multimeter
- 2 x Test Leads with 4mm Test Probes
- 2 x Bateri AAA
- 1 x Manual Pengguna
4. Persediaan
4.1 Pemasangan Bateri
The IRONMETER requires 2 AAA batteries for operation. To install or replace batteries:
- Ensure the multimeter is turned OFF and disconnect any test leads.
- Cari penutup petak bateri di bahagian belakang peranti.
- Gunakan pemutar skru untuk melonggarkan skru yang mengikat penutup.
- Remove the cover and insert the 2 AAA batteries, observing the correct polarity (+/-) as indicated inside the compartment.
- Replace the battery compartment cover and tighten the screw(s).

Rajah 1: Depan view of the HT Instruments IRONMETER Digital Multimeter, showing the display, rotary dial, and input jacks.
4.2 Menghubungkan Petunjuk Ujian
To prepare the multimeter for measurements:
- Masukkan petunjuk ujian hitam ke dalam bicu input 'COM' (Umum).
- Insert the red test lead into the appropriate input jack for your measurement:
- 'VΩHz%CAP' for Voltage, Resistance, Frequency, Duty Cycle, and Capacitance measurements.
- '10A' for current measurements up to 10A (or 20A max for 30 seconds).
- 'µAmA' for microampere dan miliampsebelum pengukuran semasa.

Figure 2: The IRONMETER in an active measurement scenario, demonstrating proper test lead connection and usage.
5. Arahan Operasi
The IRONMETER features a large LCD with backlight for clear readings and a rotary dial for function selection.
5.1 Power On/Off and Auto Power Off
- To turn the meter ON, rotate the function dial from 'OFF' to any desired measurement function.
- To turn the meter OFF, rotate the function dial to the 'OFF' position.
- The meter features an Auto Power Off function to conserve battery life. It will automatically power off after a period of inactivity.
5.2 Fungsi Pengukuran
5.2.1 AC/DC Jldtage Measurement (0.001 V to 600 V)
Set the rotary dial to the 'V~' (AC Voltage) atau 'V=' (DC Voltage) position. Connect the test leads in parallel to the circuit or component under test. The display will show the voltage membaca.
5.2.2 AC/DC Current Measurement (0.1 µA to 10 A, 20 A max for 30 sec)
Set the rotary dial to the 'µAmA~', 'µAmA=', '10A~', or '10A=' position. Connect the test leads in series with the circuit. Ensure the correct input jack (µAmA or 10A) is used based on the expected current. The display will show the current reading.
5.2.3 Resistance Measurement (0.1 Ω to 40 MΩ)
Set the rotary dial to the 'Ω' position. Connect the test leads across the component to measure its resistance. Ensure the component is de-energized before measuring resistance.
5.2.4 Continuity and Diode Test
Set the rotary dial to the 'Diode/Continuity' position. For continuity, connect the leads across the circuit; a low resistance will trigger an audible beep. For diode test, connect the leads across the diode; the display will show the forward voltage penurunan.
5.2.5 Frequency Measurement (up to 10 kHz)
Set the rotary dial to the 'Hz' position. Connect the test leads to the signal source. The display will show the frequency in Hertz.
5.2.6 Capacitance Measurement (0.01 nF to 4000 µF)
Set the rotary dial to the 'CAP' position. Connect the test leads across the capacitor. Ensure the capacitor is discharged before measurement. The display will show the capacitance in Farads.
5.3 Fungsi Khas
5.3.1 Pegangan Data
Tekan butang 'HOLD' untuk membekukan bacaan semasa pada paparan. Tekan sekali lagi untuk melepaskan fungsi tahan.
5.3.2 Fungsi Maks/Min
Press the 'MAX/MIN' button to activate the maximum/minimum value recording. The meter will continuously record the highest and lowest readings. Press again to cycle between MAX, MIN, and current readings.
5.3.3 Kitaran Tugas
When in Frequency mode, the 'MODE' button may allow switching to Duty Cycle measurement, displaying the ratio of pulse width to period.
5.3.4 Lampu latar dan Lampu Suluh
The IRONMETER features a large LCD with backlight for improved visibility in low-light conditions. Press the backlight button (often integrated with the 'MODE' or a dedicated light button) to activate it. An integrated white LED flashlight is also available for illuminating the work area.

Figure 3: The IRONMETER's robust design, built to withstand demanding industrial environments.
6. Penyelenggaraan
6.1 Penggantian Bateri
When the low battery indicator appears on the display, replace the batteries as described in Section 4.1. Always use fresh AAA batteries.
6.2 Pembersihan
Untuk membersihkan multimeter, lap bekas dengan iklanamp kain dan detergen lembut. Jangan gunakan bahan pelelas atau pelarut. Pastikan meter kering sepenuhnya sebelum digunakan.
7. Penyelesaian masalah
If you encounter issues with your IRONMETER, refer to the following common problems and solutions:
- Tiada Paparan/Meter Tidak Dihidupkan: Periksa pemasangan bateri dan pastikan bateri tidak habis. Gantikan jika perlu.
- Bacaan yang salah: Verify that the correct function and range are selected. Ensure test leads are properly connected and not damaged. Check for proper circuit connection.
- 'OL' or 'OVER' Display: Indicates an overload or out-of-range measurement. Select a higher range or ensure the input is within the meter's specifications.
- Bacaan berselang-seli: Check for loose connections at the test leads or within the circuit.
Jika masalah berterusan selepas mencuba penyelesaian ini, hubungi khidmat pelanggan.
8. Spesifikasi Teknikal
| Spesifikasi | Nilai |
|---|---|
| Nombor Model | IRONMETER |
| Jenama | HTI |
| Sumber Kuasa | Dikuasakan oleh Bateri (2 x AAA, disertakan) |
| Dimensi (L x W x H) | 18 x 13 x 7 cm |
| Berat Barang | 200 Gram |
| Voltage Pengukuran (TRMS) | 0.001 V to 600 V AC/DC |
| Pengukuran Semasa | 0.1 µA to 10 A AC/DC (20 A max. 30 sec) |
| Pengukuran Rintangan | 0.1 Ω hingga 40 MΩ |
| Pengukuran Kapasitans | 0.01 nF to 4000 µF |
| Pengukuran Kekerapan | Sehingga 10 kHz |
| Ujian Kesinambungan | ya |
| Ujian Diod | ya |
| Fungsi Khas | Data Hold, Max/Min, Duty Cycle, Backlight, Integrated LED Flashlight, Auto Power Off |
| Penilaian Keselamatan | CAT III 600 V, IEC/EN 61010-1 |
| Negara Asal | Jerman |
| Tarikh Tersedia Pertama | 5 Mei 2016 |
| Spare Parts Availability (EU) | 1 Tahun |
9. Waranti dan Sokongan
The HT Instruments IRONMETER Digital Multimeter comes with a standard warranty covering manufacturing defects. Spare parts are available for a period of 1 year from the date of purchase within the EU.
For technical support, warranty claims, or service inquiries, please contact HT Instruments customer service through their official website or the contact information provided with your purchase documentation. Please have your model number (IRONMETER) and purchase details ready when contacting support.