KETOTEK KT-1000 Digital Temperature Controller User Manual

Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your KETOTEK KT-1000 Digital Temperature Controller. Please read this manual thoroughly before use to ensure proper functionality and safety.

The KETOTEK KT-1000 is a versatile digital temperature controller designed for precise temperature management in various applications, including aquariums, incubators, terrariums, refrigerators, and more. It features dual relay outputs for simultaneous heating and cooling control, a waterproof NTC sensor, and a clear LED display.

Product Features

• Dual Relay Output: Allows simultaneous connection and control of both heating and cooling devices.
• Precise Temperature Control: Utilizes an STC microcontroller and NTC waterproof sensor for high accuracy.
• Wide Temperature Range: Controls temperatures from -50℃ to 99℃ (-58℉ to 212℉).
• Multi-functional: Supports temperature calibration, compressor delay protection, and sensor error alarms.
• Memory Function: All parameter settings are saved after power off.
• Durable Design: Constructed with a robust, anti-flame ABS plastic shell.

Image: KETOTEK KT-1000 Digital Temperature Controller showcasing its key features like dual relay, temperature range, and alarm functions.

Safety Precautions

• Ensure proper wiring and insulation to prevent electrical hazards.
• Do not exceed the maximum current rating of 10A for the relays.
• This device requires direct wiring; it does not have built-in power outlets.
• Consult a qualified electrician if you are unsure about the wiring process.
• Keep the device away from excessive moisture or direct water exposure, except for the waterproof probe.

Installation and Wiring

The KT-1000 requires direct wiring. There are two main connection methods depending on your power supply setup.

Wiring Diagram

Image: Detailed wiring diagrams for the KT-1000, illustrating Connection 1 (Independent power supply for load) and Connection 2 (Same power supply for load). L = Line (hot wire), N = Neutral, E = Earth (ground wire).

Connection 1: Independent Power Supply for Load

In this configuration, the heating and cooling loads have their own separate power supply from the controller's power supply.

1. Connect the main power supply (220V AC) to terminals 1 and 2.
2. Connect the NTC waterproof sensor to terminals 3 and 4.
3. Connect the heating device to terminals 5 and 6, ensuring its power supply is connected separately.
4. Connect the cooling device to terminals 7 and 8, ensuring its power supply is connected separately.

Connection 2: Same Power Supply for Load

In this configuration, the heating and cooling loads share the same power supply as the controller.

1. Connect the main power supply (220V AC) to terminals 1 (Line) and 2 (Neutral).
2. Connect the NTC waterproof sensor to terminals 3 and 4.
3. Connect the heating device to terminals 5 and 6. The neutral wire for the heating device connects to terminal 2 (Neutral).
4. Connect the cooling device to terminals 7 and 8. The neutral wire for the cooling device connects to terminal 2 (Neutral).
5. Ensure proper grounding if applicable, connecting to the 'E' terminal (Earth/Ground).

Image: The KT-1000 controller wired to a heater and a cooler, demonstrating its dual relay capability.

Operating Instructions

Control Panel Overview

Image: Front view of the KT-1000 control panel, showing the LED display and buttons: Power Key (A), Up Key (B), Down Key (C), Set Key (D), Setting Indicator Lamp (E), PV/SV Display (F), Cool Indicator Lamp (G), Heat Indicator Lamp (H).

• Power Key (A): Power On/Off, Confirm Setting Value, Save and Exit Function.
• Up Key (B): Choose Parameter, Increase Value, Check Setting Temperature Value.
• Down Key (C): Choose Parameter, Decrease Value, Check Setting Difference Value.
• Set Key (D): Entry, Exit, and Set Parameters.
• Setting Indicator Lamp (E): Indicates setting status.
• PV/SV Display (F): Displays Process Value (current temperature), Set Value, and Parameter Menu.
• Cool Indicator Lamp (G): On: Refrigerating Start; Off: Refrigerating Stop; Flash: Compressor Delay.
• Heat Indicator Lamp (H): On: Heating Start; Off: Heating Stop.

Setting Temperature and Differential

The controller operates in an ON/OFF control mode. You set a target temperature (F1) and a hysteresis/differential value (F2) to maintain the temperature within a desired range.

1. To Set Target Temperature (F1):
   • Press the Set Key (D) once. The display will show "F1".
   • Use the Up Key (B) or Down Key (C) to adjust the desired target temperature.
   • Press the Power Key (A) to confirm and save the setting.
2. To Set Differential/Hysteresis (F2):
   • Press and hold the Set Key (D) for approximately 3 seconds to enter the parameter menu.
   • Use the Up Key (B) or Down Key (C) to navigate to "F2".
   • Press the Set Key (D) again to enter the F2 setting.
   • Use the Up Key (B) or Down Key (C) to adjust the differential value. This value determines the temperature difference between the set point and when the heating/cooling activates/deactivates.
   • Press the Power Key (A) to confirm and save the setting, then press again to exit the menu.

Example: If F1 (Set Temperature) = 10℃ and F2 (Differential) = 3℃:

• Heating Mode: Heating activates when measured temperature ≤ (F1 - F2), e.g., ≤ 7℃. Heating stops when measured temperature ≥ F1, e.g., ≥ 10℃.
• Cooling Mode: Cooling activates when measured temperature ≥ (F1 + F2), e.g., ≥ 13℃. Cooling stops when measured temperature ≤ F1, e.g., ≤ 10℃.

Other Parameter Settings (F3-F8)

To access and adjust other parameters, press and hold the Set Key (D) for 3 seconds. Use the Up Key (B) or Down Key (C) to navigate through the parameters (F3 to F8). Press Set Key (D) to enter a parameter's setting, adjust with Up/Down Keys, and press Power Key (A) to save and exit.

Maintenance

• Regularly inspect all wiring connections to ensure they are secure and free from damage.
• Keep the controller unit clean and free from dust. Use a dry, soft cloth for cleaning.
• Do not use abrasive cleaners or solvents on the unit.
• Ensure the temperature sensor is clean and free from debris for accurate readings.
• If the unit is not in use for an extended period, disconnect it from the power supply.

Troubleshooting

Specifications

Image: Diagram showing the approximate dimensions of the KT-1000 controller and the 200cm sensor cable length.

Application Scenarios

The KETOTEK KT-1000 is suitable for a wide range of temperature control applications, including but not limited to:

• Aquariums and Aquaculture
• Incubators and Hatcheries
• Terrariums and Vivariums for reptiles
• Refrigerators and Freezers
• Seedling heat mats and plant germination
• Home brewing and fermentation
• Industrial equipment requiring temperature regulation

Image: Visual examples of the KT-1000's applications, including reptiles, greenhouses, refrigerators, pet keeping, cheese making, bacon making, fermentation, and incubation.

Warranty and Support

KETOTEK products are designed for reliability and performance. For warranty information and technical support, please refer to the official KETOTEK website or contact your local distributor.

KETOTEK is dedicated to providing high-quality products and excellent customer service. With over 10 years of development and presence in over 40 countries, KETOTEK offers 24/7 online support.

Image: The KETOTEK brand logo.