1. Introduzzjoni
The LILYTECH ZL-7835A is a multifunctional automatic incubator controller designed for precise temperature and humidity regulation. It offers optional PID and on/off temperature control, with an internal control resolution of 0.01℃ for optimal results. Equipped with auxiliary outputs, this controller can manage various applications such as incubators, climate rooms, and warehouses.
Note: The detailed operational instructions provided in this manual are primarily based on the ZL-7802D model, which shares many similarities with the ZL-7835A. Users are advised to consult the specific ZL-7835A manual if available for precise model-specific details.

For a complete and detailed manual, please refer to the official PDF document for the ZL-7802D model, which can be accessed at: https://manuals.plus/m/9e79d807b4fb0a6aee9c13b683c8ba2d95c3fcd14e6de5fa7be439f7243e0852
2. Speċifikazzjonijiet
| Karatteristika | Deskrizzjoni |
|---|---|
| Numru tal-Mudell | ZL-7835A |
| Isem tad-Ditta | LILYTECH |
| Teorija | Kontrollur tat-Temperatura |
| Tip ta 'Wiri | DIĠITALI |
| Tip ta' Enerġija | Ċarġer (100-240VAC, 50/60Hz) |
| Ċertifikazzjoni | CE |
| Sensor tat-Temperatura | NTC, R25℃ = 10K B25/50℃ = 3470K |
| Firxa tal-issettjar tat-temperatura | -40.0 ~ 99.9℃ |
| Firxa ta 'Setting ta' Umdità | 10.0 ~ 90.0% RH |
| Temperatura Massima tal-Kejl | 100°C - 119°C |
| Output tat-Temperatura | Integrated SSR, R5, 5A, 250Vac (resistance load); External SSR, (Y+, Y-), 4~2mA, 12Vdc |
| Humidity Output R2 | 10A, 250Vac (resistance load) |
| Output R1 | 7A, 250Vac (resistance load) |
| Output R3/R4 | 3A, 250Vac (resistance load) |
| Ambjent tax-Xogħol | -10 ~ 45℃, 5 ~ 85%RH without dew |
| Livell ta' Protezzjoni | IP65 (Panew ta' quddiem biss) |
| Dimensjoni tal-Każ | L78 x W34.5 x D71 (mm) |
| Drilling Size | L 71 x W29 (mm) |
| Daqs tal-Wiri | 1.9 Pulzieri u Inqas |

3. Installazzjoni
- Insert the controller into the prepared hole.
- Slide the bracket to fix the device (step two).

4. Dijagramma tal-Wajers
Refer to the diagram below for proper wiring connections. Ensure all connections are secure and correct before applying power.

- R1: Humi - 10A250Vac
- R2: Fan - 3A250Vac
- R3: Heater - 5A250Vac
- Humi. Sensor - Humidity sensor input
- Temp. Sensor - Temperature sensor input
- PROVVISTA TA’ Enerġija - N (Neutral), L (Live) for 100~240Vac
- FUSE - R3 (Heater) circuit fuse
- COM - Common terminal for R1, R2, R3
5. Operazzjoni
5.1 Set Setpoints
- Agħfas u żomm il- S button for 3 seconds. The display will show the temperature setpoint ("t" + "setpoint").
- Agħfas S again to switch between temperature set status and humidity set status ("H" + "setpoint").
- Uża l- ▲ or ▼ buttons to adjust the setpoint. Holding the button will change the value faster.
- Agħfas u żomm il- S button for 3 seconds to save the settings and exit.
If there is no key operation for 30 seconds, the setting status will exit, and changes will not be saved. Factory default setpoints are 38.0°C and 60.0%RH.
5.2 Set Parameters
- Agħfas u żomm il- P button for 3 seconds. The display will show "PSd" + "0".
- If the password is "000", no password is needed. Otherwise, use ▲ or ▼ to set the correct password and press S biex tikkonferma.
- After entering the parameter setting status, use S or P to select the parameter code (refer to the Parameter Code Table below).
- Użu ▲ or ▼ to set the value of the parameter.
- Agħfas u żomm il- P button for 3 seconds to save the settings and exit.
If there is no key operation for 30 seconds, the setting status will exit, and changes will not be saved.
5.3 Parameter Code Table (Partial)
| Kodiċi | Funzjoni | Firxa | Rimarka | Sett tal-Fabbrika |
|---|---|---|---|---|
| U10 | Temperature setpoint up limit | U11 ~ 99.9℃ | 99.9℃ | |
| U11 | Temperature setpoint low limit | -40.0 ~ U10 | -40.0℃ | |
| U12 | Modalità ta 'kontroll tat-temperatura | 0 ~ 1 | 0: PID, 1: on/off control | 0 |
| U13 | Isteresi tat-temperatura | 0.0 ~ 20.0℃ | Only effective when U12 = 1 | 0.2℃ |
| U14 | Temperature sensor calibration value | -20.0 ~ 20.0℃ | 0.0℃ | |
| U15 | High temp. protection start point | U16 ~ 10.0℃ | Relative value, real value = setpoint + U15 | 0.5 |
| U16 | High temp. protection stop point | -40.0 ~ U15 | Relative value, real value = setpoint + U16 | 0.3 |
| U17 | High temperature warning point (relative) | 0.0 ~ 99.9℃ | Absolute high temperature warning point: SP + U17; 0: Disable | 2 |
| U18 | Low temperature warning point (relative) | 0.0 ~ 99.9℃ | Absolute low temperature warning point: SP - U18; 0: Disable | 0 |
| U20 | Isteresi tal-umdità | 0.1 ~ 20% | 2 | |
| U21 | Ħin ta 'protezzjoni ta' dewmien R1 | 2 ~ 300 sek | 5 | |
| U22 | Kalibrazzjoni tal-umdità | -20.0 ~ 20.0% | 0 | |
| U23 | High humidity protection start point | U24 ~ 20.0% | Relative value, real value = setpoint + U23 | 5 |
| U46 | Output R1 modalità ta 'ħidma | 0 ~ 3 | 0: Timer output, 1: High temp/humi protection, 2: Timer output + High temp/humi protection, 3: Disable | 2 |
| U73 | Modalità ta 'kontroll tat-temperatura | 0 ~ 1 | 0: PID, 1: on/off control | 0 |
| P | Proportion parameter: Kp | 0.1 ~ 9999 | 2.6 | |
| I | Integration parameter: Ti | 0 ~ 9999 | 500 | |
| d | Differential parameter: Td | 0 ~ 9999 | 50 | |
| U99 | Password | 000 ~ 999 | 000: iddiżattiva l-password | 000 |
*This table is a partial list. Refer to the full PDF manual for all parameter codes.
5.4 Funzjonijiet ta' Kontroll
- Timer Output R1: Energized/de-energized based on U41 (on time) and U43 (off time).
- Kontroll tat-Temperatura:
- Kontroll PID: When U73 = 0.
- Kontroll ON / OFF: When U73 = 1, uses hysteresis control. R5 and external SSR energize/de-energize based on room temperature relative to setpoint and hysteresis (U16).
- Protezzjoni ta 'Temperatura Għolja: If room temperature exceeds setpoint + U12, R1 energizes. If it falls below setpoint + U13, R1 de-energizes.
- Allarm ta 'Temperatura Għolja/Baxxa: Alarms (displaying "tHi" or "tLo") if room temperature exceeds setpoint + U15 or falls below setpoint - U14.
- Kontroll tal-Umdità: R2 energizes/de-energizes based on room humidity relative to setpoint and hysteresis (U50), considering R2 delay protection time (U51).
- High Humidity Protection: Similar to high temperature protection, R1 energizes/de-energizes based on room humidity relative to setpoint + U53 and setpoint + U54.
- High/Low Humidity Alarm: Alarms (displaying "HHi" or "HLo") if room humidity exceeds setpoint + U56 or falls below setpoint - U55.
- Egg Turning Control: R3/R4 are universal timer outputs designed for egg turning.
- Funzjoni Timer: R3 energizes for left turn (U62), R4 energizes for right turn (U64).
- Full Egg Turn: One left turn + one right turn. The counter tracks full egg turns.
- Manual Egg Turning: Tagħsir ▲ starts right turning, pressing ▼ starts left turning.
- Egg Turn Counter Reset: Can be reset manually (S + ▼ for 5s) or automatically after power supplied (U66).
- Incubated Days: The controller counts incubated days. The day counter stops when it reaches the maximum set (U69). Can be reset manually (S + ▲ for 5s) or automatically after power supplied (U68).
- External Digital Input (DI): Configurable via U70 for different alarming modes (disabled, alarm if short, alarm if open).
- Buzzer Alarming: Activates for failures or effective DI input (if U71 = 1). Press P to stop beeping.
- Kalibrazzjoni tas-Sensor: Temperature (U30) and Humidity (U52) sensors can be calibrated.
- Irrestawra fis-Sett tal-Fabbrika: Agħfas u żomm P u ▲ simultaneously for 3 seconds until "UnL" displays. Then press ▼ 3 times to restore all parameters to factory settings.
6. PID Auto Tuning (AT)
Auto tuning helps optimize PID parameters for precise temperature control. Follow these steps:
- Set the Heater power during PID auto tuning (U74). The factory default is 50%.
- Set the desired temperature setpoint (SP) for auto tuning.
- Agħfas u żomm ▲ u ▼ simultaneously for 5 seconds. The U74 value will display, and "AT" will blink.
- Agħfas P to start auto tuning.
During AT, the room temperature (PV) will fluctuate around the setpoint several times. The controller will calculate new PID parameters, and the "AT" display will turn off.
- If AT fails, a reason will be displayed (e.g., "At1", "At2", "At3", "At4").
- If AT is successful, "SUc" will display. Press any key to clear "SUc" and start PID control.
- If AT never succeeds or fails, ensure sufficient heater power.
- If AT lasts 180 minutes without finishing, it will stop and display "At4".

7 Issolvi l-problemi
| Wiri | Remark / Solution |
|---|---|
| E1 | NTC sensor failure. Check sensor connection or replace sensor. |
| E2 | Humidity sensor failure. Check sensor connection or replace sensor. |
| tHi | High temperature warning. Check ventilation, setpoint, and cooling system. |
| tLo | Low temperature warning. Check heating system, setpoint, and insulation. |
| HHi | High humidity warning. Check ventilation, setpoint, and dehumidification. |
| HLo | Low humidity warning. Check humidification system, setpoint, and sealing. |
| At1 | PID auto tuning fails (Temperature interference during tuning). Minimize external disturbances. |
| At2 | PID auto tuning fails (Amplitude of temperature oscillation is abnormal). Adjust heater power or check system stability. |
| At3 | PID auto tuning fails (Periods of temperature oscillation is abnormal). Check system response. |
| At4 | PID auto tuning fails (Time out). Ensure sufficient heater power and proper setup. |
| SUc | PID auto tuning success. |
| UnL | Irrestawra għall-issettjar tal-fabbrika. |
8. Għajnuniet għall-Utenti
- Tindif regolari: Periodically clean temperature and humidity sensors to ensure accurate readings. Dust or debris can affect performance.
- Ventilazzjoni: Ensure adequate ventilation in the incubator or controlled environment to prevent hot spots and maintain stable conditions.
- Test Run: Before placing valuable items (e.g., eggs) in the incubator, perform a test run for at least 24-48 hours to verify that temperature and humidity settings are stable and accurate.
- Stabbiltà tal-Enerġija: Use a stable power source. Fluctuations can affect the controller's performance and longevity.
- Pjazzament tas-Sensor: Place sensors away from direct heat sources or humidifiers to get a true reading of the ambient conditions.
9. Warning & Attention
- Skonnettjar tal-Enerġija: Always disconnect power before performing any wiring or maintenance on the controller.
- Professional Wiring: Electrical wiring must be performed by a certified electrician to prevent damage to the device or personal injury.
- Konnessjonijiet Korretti: Connect according to the electrical wiring diagram. Incorrect wiring will damage the device.
- Sensor & Power Bundles: Do not route the sensor bundle together with the power supply bundle to avoid interference.
- Ambjent: Avoid operating the device in erosive, wet, or strong electrical-magnetic field environments.
- Heater Power Rate: If the temperature heater power rate is high, or if using inductive loads (e.g., coil-wired heaters), use an external SSR-DA instead of the integrated SSR.
- Other Loads: For large or capacitive/inductive loads (e.g., many humidifiers), it is advisable to use an intermediate relay, SSR-AA, or magnetic contactor.
- Overload Damage: Damage due to overload is not covered under warranty.
10. Garanzija u Appoġġ
This device has been thoroughly checked before shipment. The warranty period is one year from the date of purchase. The warranty does not cover damage caused by improper usage, such as incorrect wiring or other user-induced errors.
For further assistance or detailed technical support, please refer to the comprehensive PDF manual for the ZL-7802D (linked in the Introduction) or contact LILYTECH customer support.





