Ketotek STC-1000 - User Manual

AtfingerTechnologyCo.,Ltd.
STC-1000 TemperatureController
OperatingManual
1. Overview
• Switchbetweenheatandcool.
• Supportdelaystartandtemperaturecalibration.
• Alarmwhentempexceedtemperaturelimitorsensorerror
• Allparameterssettingcanbesavedaftershortcircuit.
• Refrigeratingcontroloutputdelayprotection
• Canbeusedfordomesticfreezer,watertanks,refrigerator,
industrialchiller,steamer,industrialequipmentandother
temperature-controlledsystem.
2. Specifications
• PowerSupply:AC90~250V50/60HZ/DC12V/DC24V
• Temperaturecontrolrange:-50~99°C
• DifferenceSetValue:0.3~10°C
• Accuracy: ±1
℃
(-50
℃～
70
℃
) Resolution:0.1°C
• Sensorerrordelay:1minute
• Measuringinput:NTC(10K0.5%)Waterproofsensor1m
• Relaycontactcapacity:CoolHeat(10A/250VAC)
• Ambienttemperature:-20-70°C,humidity20%-85%RH
• Size:75mm(L)*34mm(W)*85mm(Depth)
• Mountingsize:71(L)*29(W)mm
• Powerconsumption: ≤3W
3. WiringDiagram
Connection1:Independentpowersupplyforload
Connection2:Samepowersupplyforload
4. KeyInstruction
:Setkey,Confirmthesettingvalue,EntryandSetparameter.
:powron/off,orquitthesetting.
:increasevalue
:
decreasevalue
Cool:cooloutputindicator
Heat:heatoutputindicator
Set:Settingindicator
5. KeyOperationInstruction
• Checkparameter:Innormalworkingstatus,thescreen
displayrealtimetemperature.press .itdispaythesetting
temperaturevalue.press .itdispaythedifferencevalue.
Press tobacktonormaldisplay.
• Setparameter:Innormalworkingstatus,press S for3sto
entersetparametermode.Press or toswitchfrom
F1-F4.(seemenucodetable).Press S todisplaythe
parametersetvalueofthecurrentcode.Pressandhold S
，
Press or againtoadjustupanddowntheparameter
settingvalueofthecurrentcode.Pressandholdboth S
and or simultaneouslytochooseandadjustthe
parametervalueofthecurrentmenuvaluepromptly.After
finishingthesetting,pressandrelease instantlytosave
theparametermodifiedvalueandreturntonormaldisplay.
Ifnokeyoperationwithin30seconds,systemwon’tsave
modified parameter, screen back to display normal
temperature.Screendisplay
“
Er
”
iferrorappearsduring
parametersaving,andbacktonormalworkingstatusin3
seconds.
• Restoresystemdata:Whenelectrified,systemwillcheck
itself,screenwilldisplay”Er”iferrorexit,pleasepressany
keyatthistime,anditrestoredefaultvalueandenterinto
normalworkingmode.itisadvisedtoresettheparameter
valueunderthiscondition.
6. OperationInstruction
• Innormalworkingstatus,hold for3secondstopower
off,hold for3secondstopoweron.
• Innormalworkingstatus,thescreendisplay RT(realtime
temperaturevalue).thecontrollercanalsoswitchthe
workingmodebetweenheatingandcooling.
•
①
Refrigeratingstartswhen RT
≥
ST (temperatureset
value)+F2 (differencevalue),therefrigeratingrelayis
connected.coolindicatorflashes.itindicatesthe
refrigeratingequipmentisundercompressordelayprotect
status;When RT≤ST,coolindicatorlightoff,
refrigeratingrelaydisconnects.coolerstopworking.
• ② Heatingstartswhen RT≤ST-F2,heatindicatorlight
on.heatrelayconnect.When RT≥ST,heatindicatorturn
off,heatrelaydisconnect,heaterstopworking.
• Forexample,set10 ℃ ,difference3℃,heaterworkwhen
RT≤7℃.heaterstopwhen RT≥10℃.Coolerworkwhen
RT
≥
13
℃
,Coolerstopwhen RT
≤
10
℃
.
Indicator Function Notes
Heatlight
On:Refrigerationstarts;
Off:Refrigerationstops;
Flash:compressordelay
Cool、Heatindicator
lightcannotbe “on”
statussimultaneously
Coollight
On:heatingstarts;
Off:heatingstops
Setlight On:parametersettingstatus
Code Function SetRange Default
F1 Temperaturesetvalue -50～99℃ 10℃
F2 ReturnDifference 1～10℃ 3℃
F3 Compressordelaytime 1
～
10minute 3minutes
F4 Temperaturecalibrationvalue -10℃～10℃ 0℃

Summary

Product Overview

Technical Specifications

Wiring Diagram and Connections

Independent Power Supply Wiring

Illustrates the wiring for a setup with an independent power source for the load.

Shared Power Supply Wiring

Demonstrates the wiring configuration when the controller and load share the same power source.

Key Operation Instructions

Parameter Checking Procedure

Steps to check real-time, set, and difference temperature values.

Parameter Setting Procedure

Guide on how to enter, adjust, and save parameter values for controller settings.

System Data Restoration

Procedure for restoring default settings in case of system errors or power issues.

Operation Instructions

Power Control and Mode Switching

Instructions for powering the controller on/off and switching between heating/cooling modes.

Heating and Cooling Logic Explanation

Detailed explanation of how heating and cooling cycles are activated based on temperature.

Parameter Codes and Settings Table

Reference table for parameter codes (F1-F4), their functions, ranges, and default values.

Ketotek STC-1000 Specifications

General

Control Type	On/Off Control
Power Supply	110-220V AC ±10%, 50/60Hz
Display	LED
Sensor Type	NTC Sensor
Relay Output	10A/220V AC
Dimensions	75mm x 34mm x 85mm
Accuracy	±1°C
Resolution	0.1°C
Power Consumption	<3W
Relative Humidity	20% to 85% (non-condensing)
Input Type	NTC Sensor
Temperature Range	-50°C to 99°C