1. Pengenalan
This manual provides detailed instructions for the installation, programming, and operation of your johgee HCT-379 4-Output Digital Irrigation Computer. This device is designed to automate watering for various applications, including gardens, lawns, and greenhouses, offering flexible and independent control over four separate watering zones.

Image: The johgee HCT-379 irrigation computer highlighting its key features.
2. Maklumat Keselamatan
- Ensure the device is installed securely to prevent accidental detachment.
- Do not submerge the device in water. While it is IPX5 waterproof, prolonged submersion can cause damage.
- Use only 1.5V AA alkaline batteries. Do not mix old and new batteries or different battery types.
- Keep the device out of reach of children and pets to prevent unintended operation.
- Disconnect the device from the faucet and store it indoors during freezing temperatures to prevent damage.
3. Kandungan Pakej
Sahkan bahawa semua item terdapat dalam pakej:
- johgee HCT-379 4-Output Digital Irrigation Computer
- Manual Pengguna
- Standard faucet connector (typically 3/4 inch)
- Additional adapters/seals (if included)
4. Produk Lebihview
The johgee HCT-379 features a large LCD display and intuitive controls for easy programming. It includes four independently controlled outlets for versatile watering.

Imej: Depan view of the irrigation computer with display labels.
Komponen Utama:
- Paparan LCD: Menunjukkan masa semasa, tetapan program dan status.
- Butang Kawalan: For navigation, setting values, and mode selection (NOW, ABCD, ESC/OFF, OK, +, -, DELAY).
- Faucet Connector: Top inlet for connecting to a standard outdoor faucet.
- Four Independent Outlets (A, B, C, D): Bottom outlets for connecting hoses to different watering zones.
- Petak Bateri: Located at the back, secured with a sealed cover.
5. Persediaan
5.1. Pemasangan Bateri
- Cari petak bateri di bahagian belakang peranti.
- Open the sealed battery cover.
- Insert two (2) new 1.5V AA alkaline batteries, ensuring correct polarity (+/-).
- Securely close the battery cover to maintain the IPX5 waterproof rating.

Image: Steps for battery insertion and device installation.
5.2. Connecting to the Faucet
- Pastikan pili paip luar anda dimatikan.
- Thread the top connector of the irrigation computer onto your faucet. Hand-tighten until secure. Do not overtighten.
- Turn on your faucet fully to ensure adequate water pressure to the timer.
5.3. Connecting Hoses to Outlets
- Attach your garden hoses or irrigation lines to the four independent outlets (A, B, C, D) at the bottom of the device.
- Pastikan semua sambungan rapat untuk mengelakkan kebocoran.
6. Arahan Operasi
6.1. Memahami Paparan
The LCD display provides all necessary information for programming and monitoring. Familiarize yourself with the indicators:
- SEKARANG: Masa semasa.
- ABCD: Indicates which output zone(s) are currently selected or being programmed.
- MASA MULA: The programmed time for watering to begin.
- BERAPA LAMA: The duration of watering for a selected zone (1 second to 360 minutes).
- BERAPA KERAP: The frequency of watering (1 hour to 23 hours, or 1 day to 15 days).
- NEXT START: Time remaining until the next scheduled watering cycle.
- Penunjuk Bateri: Menunjukkan baki hayat bateri.
- Ikon Kunci Kanak-kanak: Menunjukkan sama ada kunci kanak-kanak aktif.
- Rain Delay Icon: Indicates if rain delay is active.
6.2. Menetapkan Masa Semasa
- Tekan ke SEKARANG button. The current time will flash.
- Gunakan + dan - butang untuk melaraskan jam.
- Tekan OK to confirm the hour and move to minutes.
- Gunakan + dan - butang untuk melaraskan minit.
- Tekan OK untuk menjimatkan masa semasa.
6.3. Programming Watering Schedules (Zones A, B, C, D)
Each of the four outlets can be programmed independently.
- Tekan ke ABCD button to select the zone you wish to program (A, B, C, or D). The selected zone will flash.
- Tekan OK to enter programming mode for that zone.
- Tetapkan Masa Mula: The 'START TIME' will flash. Use + dan - untuk melaraskan jam, kemudian OK to confirm and move to minutes. Adjust minutes and press OK.
- Set Watering Duration ('HOW LONG'): The 'HOW LONG' value will flash. Use + dan - to set the watering duration from 1 second to 360 minutes. Press OK.
- Set Watering Frequency ('HOW OFTEN'): The 'HOW OFTEN' value will flash. Use + dan - to set the frequency from 1 hour to 23 hours, or 1 day to 15 days. Press OK to save the program for the selected zone.
- Repeat steps 1-5 for each zone (A, B, C, D) you wish to program.

Image: Programming options for watering duration and frequency across multiple zones.
6.4. Manual Watering Mode
This mode allows immediate watering without affecting your programmed schedules.
- Tekan ke water faucet icon button (usually labeled with a faucet symbol).
- Gunakan ABCD button to select the desired output zone(s) for manual watering.
- Gunakan + dan - buttons to set the manual watering duration.
- Tekan OK to start manual watering. The selected zone(s) will begin watering for the set duration.
- Untuk menghentikan penyiraman manual sebelum waktunya, tekan water faucet icon button lagi atau ESC/MATI.

Image: Activating manual watering mode.
6.5. Rain Delay Mode
The device does not have an automatic rain sensor. Rain delay must be activated manually to pause scheduled watering during rainfall.
- Tekan dan tahan butang KELEWATAN butang selama 3 saat.
- Gunakan + dan - buttons to select the desired delay duration (e.g., 24 hours, 48 hours, 72 hours).
- Tekan OK to confirm. The rain delay icon will appear on the display, and all programmed watering cycles will be paused for the selected duration.
- To cancel rain delay, press and hold the KELEWATAN button again for 3 seconds, then set the delay to '0' or press ESC/MATI.

Image: Rain delay mode activated on the irrigation computer.
6.6. Fungsi Kunci Kanak-kanak
Untuk mengelakkan perubahan tidak sengaja pada tetapan anda, aktifkan kunci kanak-kanak.
- Tekan dan tahan butang lock icon button for 3 seconds. The lock icon will appear on the display.
- Untuk membuka kunci, tekan dan tahan butang lock icon button again for 3 seconds. The lock icon will disappear.
6.7. Manual Valve Operation (Video Demonstration)
This video demonstrates how to manually open and close the valves on the irrigation computer.
Video: Demonstration of manually opening and closing the valves on the johgee HCT-379 irrigation computer. This shows how to test water flow through each output.
7. Penyelenggaraan
7.1. Pembersihan
- Lap bahagian luar peranti dengan lembut, damp kain. Jangan gunakan pembersih atau pelarut yang melelas.
- Periodically check the filter screen in the faucet connector for debris and clean if necessary to maintain optimal water flow.
7.2. Penyimpanan Musim Sejuk
- Before the first frost, disconnect the irrigation computer from the faucet and hoses.
- Remove the batteries to prevent corrosion.
- Store the device in a dry, frost-free location indoors.
8. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada aliran air | Faucet is off; low water pressure; clogged filter; dead batteries. | Ensure faucet is fully open; check water supply; clean filter; replace batteries. |
| Peranti tidak dihidupkan | Bateri mati atau tidak dipasang dengan betul. | Gantikan bateri, pastikan polariti yang betul. |
| Kebocoran daripada sambungan | Loose connections; worn out washers/seals. | Tighten all connections; replace rubber washers if damaged. |
| Programs not running | Incorrect programming; rain delay active; child lock active. | Review programming steps; deactivate rain delay; deactivate child lock. |
| Paparan malap atau kosong | Kuasa bateri rendah. | Gantikan bateri. |
9. Spesifikasi
- model: HCT-379
- Jenama: johgee
- Bilangan output: 4 (dikawal secara bebas)
- Tempoh Penyiraman: 1 saat hingga 360 minit
- Kekerapan Penyiraman: 1 jam hingga 15 hari
- Sumber Kuasa: 2 x Bateri Alkali AA 1.5V (tidak termasuk)
- Penilaian Kalis Air: IPX5
- Bahan: Reinforced Nylon Fiber
- Dimensi Produk: 14.2 x 16.4 x 7.4 cm
- Berat: 890 gram
10. Waranti dan Sokongan
For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official johgee webtapak. Simpan resit pembelian anda sebagai bukti pembelian.