Zn-401s - Manual
The manual’s spare parts list is invaluable. Common parts and their typical order codes:
| Part Description | Example Part No. (from manual) | |------------------|--------------------------------| | Weighing pan | ZN-401S-PAN | | Load cell (100g capacity) | ZN-401S-LC100 | | LCD display | ZN-401S-DISP | | Rubber keypad membrane | ZN-401S-KEY | | RS232 to USB adapter (suggested) | Generic (CH340 chipset) |
Order directly from the OEM or industrial supply sites like DigiKey, Mouser, or even AliExpress (search by part number).
Disclaimer: This manual is a reconstruction based on standard technical specifications for the ZN-401S model series. Variations in firmware or hardware may exist between manufacturing batches. Always consult the specific wiring diagram printed on your device.
Understanding the structure of the ZN-401S manual will save you hours of frustration. Below is a breakdown of the most critical chapters.
Before you download a manual, you must confirm which ZN-401S device you own. This model number is primarily associated with two device types:
How to identify your unit:
Important: This guide focuses on the ZN-401S Temperature Controller, as it is the most frequently searched variant. If your device is a timer, consult section 5 for cross-referencing.
The ZN-401S is a microprocessor-based digital time switch designed for automatic control of electrical appliances, lighting systems, water pumps, and industrial machinery. It features a built-in rechargeable battery for memory backup, a large LCD display, and the capability to set multiple on/off programs per day. zn-401s manual
| Parameter | Meaning | Typical Setting |
| :--- | :--- | :--- |
| SN | Sensor input type | K (for K-thermocouple), PT (for Pt100) |
| UNIT | Temperature unit | C or F |
| P | Proportional band | 30 (start here, then fine-tune) |
| I | Integral time | 240 seconds |
| D | Derivative time | 60 seconds |
| OUT | Output mode | HEAT or COOL (for refrigeration) |
| AL1 / AL2 | Alarm values | Set upper/lower limits |
If you want, I can convert this into a printable PDF, expand any section into step-by-step instructions with screenshots, or draft a shorter user-friendly quick-start leaflet — tell me which.
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The ZN-401S is distinguished by its user-friendly interface and specialized functions:
Multi-Device Control: Typically manages up to 4 devices (TV, VCR, DVD, and Satellite/Cable).
Advanced DVD Functions: Includes dedicated buttons for subtitles, chapter scanning, and repeat.
Integrated Sleep Timer: Can automatically turn off a TV even if the TV itself does not have a built-in timer.
Menu Navigation: Provides full control over on-screen menus for connected components. The manual’s spare parts list is invaluable
Range & Power: Operates via infrared technology with a maximum range of approximately 10 meters and requires 2 AAA batteries. Setup and Programming Instructions
To use the remote, you must program it to recognize your specific brand of device using one of the following methods: Direct Code Entry Turn on the device (e.g., your TV) manually.
Press and hold the [DEVICE] button (e.g., TV, DVD) you wish to program for approximately 3 seconds until the indicator light remains lit.
Enter the 4-digit code for your brand from the code list provided with the physical manual. The indicator light will turn off if the code is valid.
Test the remote by pressing the POWER button. If the device turns off, the programming was successful. Automatic Code Search
If you do not have the code list, you can search for the correct code: Turn on the component you want to program.
Press and hold the [DEVICE] button until the light stays on.
Slowly and repeatedly press the CHANNEL UP or POWER button while pointing the remote at the device. Disclaimer: This manual is a reconstruction based on
Once the device reacts (turns off or changes channel), press the [DEVICE] or ENTER button immediately to lock in the code. Operational Tips
Battery Replacement: Always replace both AAA batteries at the same time to ensure consistent signal strength.
Mode Switching: Ensure you press the correct device button (TV, VCR, DVD) before trying to control that specific component.
Erasing Commands: Some models allow you to clear learned commands by holding specific button combinations (like [DEVICE] and [ASPECT]) until the LED blinks, though this varies by production year.
For further assistance, you may find digital copies of similar manuals on Manuals+ or through specialty resellers like SpenCertified. Zenith ZN401S - TV/VCR/DVD - Universal Remote Control
Zenith ZN401S - TV/VCR/DVD - Universal Remote Control — SpenCertified. SpenCertified·Spencertified
Essential 4 Device Universal Remote Control URC3640 - One For All
