DIGITEN DTC-101, DTC-151 Thermostat User Manual
- June 13, 2024
- DIGITEN
Table of Contents
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
Temperature Control Range | -40-120 t . -40-248T |
---|---|
Temperature Resolution | 0.1’e. 0.1°F |
Temperature Accuracy | 31 ‘C C. VT |
Temperature Control Mode | Heating and Cooling |
Input Power | 100-240VAC, 50/60Hz |
Temperature Control Output | Max.10A /15A100-240VAC |
Maximum output load | DTC-101, 1100W@110V, 2200W@220V; DTC-151, 1650W@110V, |
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
- PV: Current Temperature.
- RV: Run Temperature
- SV: Stop Temperature
- AH: High Temperature Alarm
- AL: Low Temperature Alarm
- DP: Time of Compressor Delay Starting
- CA: Temperature Calibration
- Mode: Cooling: Working Mode
- 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)
- Long press the SET button until RV value flashing
- Press and to adjust the temperature value
- Press SET button to set SV value
- 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.
- Long press the SET button until -AIM, flashing
- Press and to adjust the temperature value
- Press SET button to set next function.
- 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.
- Long press the SET button until 20.0: flashing
- Press and to change the RV to 28’C
- Press SET button to set 4110: stop temperature(SV)
- Press and to change the SV to 22″C
- Long press SET button to save and exit.
- 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
CODE | Function | Setting Range | Default Setting |
---|---|---|---|
RV | Run Temperature Value | -40-1201°C | 20°C |
-40-248°F | 68°F | ||
SV | Stop Temperature Value | -40-120°C | 40°C |
-40-248°F | 104°F | ||
AH | High Temperature Alarm | -40-120°C | 120°C |
-40-248°F | 248°F | ||
AL | Low Temperature Alarm | -40-120 °C | -40°C |
-40-248°F | -40 °F | ||
DP | Time of Compressor Delay Starting | 0-10minutes | 0 |
CA | Temperature Calibration | -15-15°C | 0 °F |
-15-15°F | 0 °F |
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
-
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. -
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. -
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. -
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. -
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) . -
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
- Please make sure the setting value is correct. If thermostat works fine, the green LED(RUN) is turned on.
- 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