DIGITEN DTC-101, DTC-151 Thermostat User Manual

DTC-101, DTC-151 Thermostat
User Manual Thermostat Manual
DTC-101 DTC-151
www.digit-en.com
service@digit-en.com

This thermostat is a simple-stage, electronic temperature controller. The large. lighted LCD screen display is easy to read. The case is designed with fireproof ABS material for human engineering. Temperature sensor is waterproof with high quality, high-accuracy.

Features

• Large LCD screen
  Display the sensed temperature. setting temperature, and custom icons on the display indicate working mode.

• Support reading with Centigrade or Fahrenheit unit ;

• Easy to use and program Only 2-steps setting for your application, and plug and play design.

• With a temperature correction function
  Allow user to adjust measuring accuracy based on different probe, etc.

• Delay starting protection
  Protect refrigerating compressor lifetime, avoid compressor to start frequently.

• High and low temperature alarms are available ;

• Over-temperature and sensor fault alarm

Technical Specifications

3300W@220V
Buzzer Alarm| High and Low Temperature Alarm
Sensor Type| Waterproof NTC sensor (Including)
Sensor Length| 2m, Oft
Relay Contact Capacity| DTC-101 (10A. 100-240VAC )
DTC-151 ( 10A, 100-240VAC )
Input Power Cable Length| 150 cm/5ft
Output Outle Cable Length| 18cm/7

Note: The waterproof temperature sensor works with water, seawater, weak acid or weak base liquid.

Panel instructions

1. PV: Current Temperature.
2. RV: Run Temperature
3. SV: Stop Temperature
4. AH: High Temperature Alarm
5. AL: Low Temperature Alarm
6. DP: Time of Compressor Delay Starting
7. CA: Temperature Calibration
8. Mode: Cooling: Working Mode
9. Mode: Heating: Working Mode

View Setting Parameters

When the controller is working normally, short press SET and you can look at the parameter values in order.

Setting Instructions

How to change temperature unit
To convert to Fahrenheit unit, press the and buttons simultaneously. Press them again to return to Celsius unit.
Notice: When temperature unit has been changed, all the setting value will be recovered to factory settings.
Setup Flow Chart
Setting the RUN temperature(RV) and STOP temperature(SV)

1. Long press the SET button until RV value flashing
2. Press and to adjust the temperature value
3. Press SET button to set SV value
4. Long press SET button to save and exit.

Note: If no entries are made for 30 seconds while programming is in progress, the control reverts to the normal temperature display.

Setting Other Functions
To set Low temperature Alarm(AL), High temperature Alarm(AH) Calibration(CA). Compressor Delay Starting(DP). use the method below.

1. Long press the SET button until -AIM, flashing
2. Press and to adjust the temperature value
3. Press SET button to set next function.
4. Long press SET button to save and exit.

For example
User want to run cooling equipment when RV=28.C. and stop cooling equipment when PV=22°C. DP=3 minutes.

1. Long press the SET button until 20.0: flashing
2. Press and to change the RV to 28’C
3. Press SET button to set 4110: stop temperature(SV)
4. Press and to change the SV to 22″C
5. Long press SET button to save and exit.
6. Connect the cooling equipment to the outlet

How to restore default settings
Keep pressing SET key until connect the power to this device, controller will restore factory setting after BI–sound.

Function range and default setting

LCD Backlight Control

The screen is defaulted to be always on with backlight.
Press and SET buttons simultaneously about 3 seconds until the symbolVdisappears, the LCD light will shut off automatically after 30 seconds.
Press and SET buttons simultaneously about 3 seconds until the LCD appears p’, the lcd will be stay on.

Function Introduction

1. Cooling Mode
   Set RV(RUN temperature) > SV (STOP temperature), the temperature controller enter cooling mode. The LCD will display MODE:COOLING .
   When PV(measuring temperature) is higher than RV, the cooling equipment start working, and run LED is turned on. When PV(measuring temperature) reach to SV (STOP temperature), the cooling equipment stop working, and stop LED is tumed on. Note: When run LED is flashing, it means the cooling equipment enter compressor delay protection function.

2. Heating Mode
   Set RV(RUN temperature) < SV (STOP temperature). the temperature controller enter heating mode. The LCD will display mODEIHEAMNO.
   When PV(measuring temperature) is lower than RV. the heating equipment start working, and run LED is turned on. When PV(measuring temperature) reach to SV (STOP temperature), the heating equipment stop working, and stop LED is turned on.

3. High/Low Temperature Alarm (AH/AL)
   When measuring temperature (PV) > high temperature alarm value (AH), high temperature alarm will be triggered, buzzer will alarm with tone “bi-bi-bi” . press any key to cancel the alarm sound, if user want to close alarm, please reset the AH value or wait until PV is lower than AH. When measuring temperature (PV) •S low temperature alarm value (AL), low temperature alarm will be triggered, buzzer will alarm with tone ” bi-bi-bi ” , press any key to cancel the alarm sound, if user want to close alarm, please reset the AL value or wait until PV is more than AL.

4. Time of Compressor Delay Starling (DP)
   Under refrigeration mode, after power on, if the measuring temperature (PV) is higher or equal to Run Temperature (RV), the cooling equipment won’t start refrigeration immediately, but it will wait for a delay time(DP) to work. When the time interval between two refrigeration operations is larger than preset delay time, the equipment will start refrigeration immediately; when the time interval between two refrigeration operations is less than preset delay time, the equipment won’t start refrigeration until achieve the preset delay time. Delay time will be recorded at the moment that refrigeration stops.

5. Temperature Calibration (CA)
   When there is deviation between current temperature and actual temperature, use temperature calibration function to correct the current temperature and actual temperature. Corrected Temperature = Temperature( before Calibration) + Corrected Value(corrected value could be positive value, 0 or negative value) .

6. Display in Fahrenheit or Centigrade unit (CF)
   Users can select display with Fahrenheit or Centigrade temperature value according to their own habit. Default setting is display with Centigrade temperature value.

Application

The thermostat can be used to control a wide variety of simple-stage refrigeration and heating, or HVAC equipment.
Typical applications include:

• Retail store display freezers and coolers
• Supermarket display cases for product/meats
• Retail store walk-in freezers and coolers
• Boiler operating control
• Condenser fan cycling or staging
• Cooling tower pump and fan control
• Space and return air temperature control
• Aquarium water temperature
• BBQ
• Over temperature control/protection

Troubleshooting

If you have a problem with thermostat, there’s usually a quick and simple solution.
Green LED flash when power on
It is a normal phenomenon, Delay Starting Protection function for Refrigerating Compressor is working. You could enter Setup Mode directly, or wait 3 minutes(base on DP setting value) until it doesn’t flash green light before setting the temperature controller.
Err Alarm
When temperature sensor is in short-circuited or open-circuited, the controller will prompt sensor fault mode, and the buzzer will alarm, and LED displays Err. Buzzer alarm could be dismissed by pressing any key. After faults solved, the system will return to normal working mode. So make sure that the sensor is plugged into the hole fully, if it displayed Err still, you can exchange another sensor.
HL Alarm
When current temperature exceeds the measuring range (less than -40°C/-40°F or higher than 120°C/248 ° F), the controller will prompt over-temperature alarm mode, and cancel all the actions. The buzzer will alarm, LED displays HL. Buzzer alarm could be dismissed by pressing any key. When temperature returns to measuring range, the system will retum to normal working status.
Heating and refrigeration equipment don’t work

1. Please make sure the setting value is correct. If thermostat works fine, the green LED(RUN) is turned on.
2. Please check if the loading is contacted reversely to heating or cooling outlet.

If thermostat does not operate properly after trying the troubleshooting steps, please send your questions to our email: service@digit-en.com.

WARRANTY

The DIGITEN products are guaranteed to the original owner for one year against defects in workmanship and materials. Please contact us: service@digit-en.com www.digit-en.com/support
WARNING
Do Not Overload T
his unit works with load up to 10A(DTC-101) / 15A(DTC-151). If load is larger than rated value, it would become very hot even bum the thermostat. That is very dangerous. It is best that the load is less than or equal to 7A(DTC-101) / 12A(DTC-151), if you require the temperature controller to work stably for a long term.
The probe is waterproof, but controller is not waterproof, so don’t get water into the controller and outlet.

COPYRIGHT 2022DIGITEN CO LTD
ALL RIGHTS RESERVED

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