Gold Member Since 2017
Audited Supplier
Yi Wu Lv Yun Co., Ltd.

Controller, Temperature Controller, etc-974 manufacturer / supplier in China, offering etc-974 Temperature Controller, Axial DC Fan FM17250, Axial DC Fan FM12038 and so on.

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etc-974 Temperature Controller

Purchase Qty.:
(Pieces)
60-499 500+
FOB Unit Price: US $13 US $11
Purchase Qty. (Pieces) FOB Unit Price
60-499 US $13
500+ US $11
Get Latest Price
Port: Ningbo, China
Production Capacity: 100000
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Basic Info
  • Model NO.: ETC-974
  • Refrigerant: Freon
  • Structure: Assembled
  • Suitable for: Refrigerator
  • Warranty: 1-2 Years
  • Condition: New
  • Trademark: OEM
  • Specification: 60PCS/CTN
  • HS Code: 903210000
  • Temperature: -30~85ºC
  • Size: Small
  • Use Nature: Production
  • Usage: Refrigerator
  • Certification: RoHS, ISO, CE, CCC
  • MOQ: 60
  • Transport Package: Carton
  • Origin: China
Product Description


ETC-902 ETC-974 ETC-961 Aviliable

1,  Working conditions:
1.1,Power supply:230VAC±10% 50/60Hz
1.2,Rated current of the relays(refrigeration, defrost and fan):8A/220VAC
1.3,Use temperature:-5ºC~55ºC  Relative humidity:10%~90% RH(not condensing)
1.4,Storage temperature:-30ºC~85ºC
2,Specification:
2.1,Product:Length 77× Width 34.5 × Depth 58(mm) 
2.2,Mounting size:Length 71 × Width 29 (mm)
         2.3,Probe wire length:2M(including the probe)   
3,Technical parameters:
3.1,Temperature controlling range:
NTC probe: -50…110 °C (-58...230°F)
PTC probe: -55…140 °C (-67...284°F) 
3.2,Display resolution:1ºC/0.1ºC(With the switch mode between integer and decimal)
3.3,Accuracy:
        NTC:±0.5ºC(-30ºC-50ºC),others,±1ºC
    PTC:±1ºC  (-30ºC-50ºC),others, ±2ºC            
3.4,Probe type:NTC(-50ºC~120ºC)  PTC(-50ºC~150ºC)
4,Operation and display panel
                                                                                                     
 
 
FNC  key:Exit        SET  key:Set
 
    key:Up            key:Down
 
 
PositionRelated FunctionStatus
 CompressorON when the compressor is started up; blinking in case of delay, protection or blocked enabling
 DefrostON when defrosting; blinking in case of manual enabling
 AlarmON when the alarm is enabled; blinking when the alarm is silenced
 FansON when the fan is working
 
 
 
 
 
 
 
 
 
 
5,Controller parameters and operation:
5.1,Set the temperature setpoint
To access the user menu, press and quickly release the "set" key. If alarms are not present, the label "SEt" appears. By using the "UP" and "DOWN" keys you can scroll through the other folders in the menu:
-Pb1: probe 1 value folder;
-Pb2: probe 2 value folder
-SEt: Setpoint setting folder.
 
  The step of setting the temperature is as below:
    5.1.1,When it displays the measured temperature in the display panel, press SET key, it will display Set.
5.1.2,At this time, press SET key, you could view the current temperature setpoint.
    5.1.3,Press key or key to modify the setpoint.
5.1.4,Press FNC key,it will display the measured temperature, and exit from the temperature setting.
If high/low temperature alarm happens, user could inquiry alarm type through parameter folders"AL".
5.2,Parameter setting
   ETC-974 has classifies all parameters into seven folders according to the objects and functions: CP,Def,FAn,  AL,diS,CnF,FPr,the method to enter the folder is as below:
    5.2.1,When it displays the measured temperature in the display panel, press SET key for at least five seconds, it will display the first parameter folder code CP.
    5.2.2,At this time, press SET key, it enters the parameter folder CP, and it will display the first parameter diF.
5.2.3,Press key or key,it will display all parameters under the folder of CP in circulation.
5.2.4,If need to view or modify one of the parameters, when it displays the parameter code in the display panel, press SET key to view the parameter setpoint, and then press key or key to modify the setpoint.
    5.2.5,Press FNC key,it will exit from the parameter folder of CP, and it will restore to display the parameter CP. Press FNC, it will restore to display the measured temperature value and exit from parameter setting.
5.3,Enter the parameter folders of ,Def,FAn,  AL, diS,CnF,FPr:
     5.3.1,When it displays the first parameter folder code CP, press key or key,it will display each parameter folder code in circulation.
     5.3.2,Select the desired parameter folder code and press SET key, and it will display first parameter of the current parameter folder.
     5.3.3,The method to view, modify and exit the parameter value will be the same as above.
 
5.4,Copy card
ETC-974 provides a copy card interface,if the user has Elitech copy card,it could conveniently set the parameters in batch.
The activation of copy key functions:When it displays the parameter code UL/dL/Fr,press SET key,if the function of UL/dL/Fr is activated,it displays "y";if not activated,it displays "n".
If the function of dL is activated,the instrument will work according to the new parameters.
If the function of Fr is activated, the default parameters of the instrument will be downloaded to the copy card.
Note:Insert the copy card when the power is switched off,and then switch on the power, the instrument will download the data of the copy card. If it is successfully loaded, it will display "dLY" for five seconds;If loading in failure, it will display "DLn" for five seconds.
5.5  Manual activation of the defrosting cycle
To manually activate the defrosting cycle, press the "UP" key for 5 seconds. If defrosting conditions are not present, (for example the evaporator probe temperature is higher than defrost stop temperature), and the display will blink three times, in order to indicate that the operation will not be performed.
 
5.6,Password setting
    ETC-974 has a parameter PA1 which permits user setting a number as the password to enter the parameter folders. In this way, if uses press SET key for five seconds, it will not display the first parameter folder CP, instead, it displays parameter code PAI. Press SET key and then press key or key,input the correct password, it will display parameter folder CP. Other operation is the same as "parameter setting".
5.7, Alarm codes:
5.7.1,E1: Probe 1 in failure
5.7.2  E2: Probe 2 in failure
Note: If simultaneous, they will be showed on the display alternately, every 2 seconds.
5.7.3  EE: Eeprom data storage error
5.7.4  AH1: High temperature alarm
5.7.5  AL1: Low temperature alarm
      Note:  To silence alarms press any key.
 
6,Parameter table
COMPRESSOR REGULATOR (folder with "CP" label)
 Parameter code  DescriptionSet rangeDefault value Unit
1 diF diFferential. Relay compressor tripping differential. The compressor stops on reaching the Setpoint value (as indicated by the adjustment probe),and restarts at temperature value equal to the Setpoint plus the value of the differential.Note: the value 0 cannot be assumed.(0.1 ... 30.0) 2.0°C/F
2 HSE Higher SEt. Maximum possible setpoint value.(LSE ... 302) 99.0°C/F
3 LSE Lower SEt. Minimum possible setpoint value.(-55.0 ... HSE) -50.0°C/F
4 Ont On time (compressor). Compressor activation time in the event of faulty probe. If set to"1" with Oft at "0" the compressor is always on, while at Oft >0 it functions always in duty cycle mode.(0 ... 250) 0min
5 OFt OFF time (compressor). Compressor in disabled state time in the event of a faulty probe.If set to "1" with Ont at "0" the compressor is always off, while at Ont >0 it functions always in duty cycle mode.(0 ... 250) 1min
6 dOn delay (at) On compressor. Delay time in activating the compressor relay after switch-on of instrument(0 ... 250) 0S
7 dOF delay (after power) OFF. Delay after switch off; the indicated time must elapse between switch-off of the compressor relay and the successive switch-on.(0 ... 250) 0min
8 dbi delay between power-on. Delay between switch-ons; the indicated time must elapse between two successive switch-ons of the compressor.(0 ... 250) 0min
9 OdO delay Output (from power) On. Delay time in activating the outputs after switch-on of the instrument or after a power failure.(0 ... 250) 0 min
DEFROSTING REGULATOR (folder with "dEF" label)
10 dtY defrost type. Type of defrosting.(0 ... 2) 0 number
0 = electric defrost;
1 = reverse cycle defrost (hot gas);
2 = Free defrost (compressor hot).
11 dit defrost interval time. Interval between the start of two successive defrosting operations.(0 ... 250) 6 hours
12 dCt defrost Counting type. Selection of count mode for the defrosting interval.(0 ... 2) 1 number
0 = compressor operating hours;
1 = Real Time - appliance operating time;
2 = compressor stop.
13 dOH defrost Offset Hour. Start-of-defrosting delay time from start up of instrument.(0 ... 59) 0 min
14 dEt defrost Endurance time. Defrosting time-out; determines duration of defrosting.(1 ... 250) 30 min
15 dSt defrost Stop temperature. Defrost stop temperature (defined by the evaporator probe).(-50.0 ... 150.0) 8.0°C/F
16 dPO defrost (at) Power On. Determines if at the start-up the instrument must enter defrosting (if the temperature measured by the evaporator allows this operation).y = yes; n = no.(0=n ... 1=Y) n flag
FANS REGULATOR (folder with "FAn" label)
17 FSt Fan Stop temperature. Fan lock temperature; if the value, read by the evaporator probe,is higher than the set value, fans stop.(-50.0 ... 150.0) 2.0°C/F
18 FAd Fan differential. Fan starting differential (see par. "FSt").(1.0 ... 50.0) 2.0°C/F
19 Fdt Fan delay time. Delay time in activating fans after a defrost operation.(0 ... 250) 0min
20 dt drainage time. Dripping time.(0 ... 250) 0min
21 dFd defrost Fan disable. Allows to select the evaporator probes exclusion during defrost. y = yes; n = no.(0=n ... 1=Y) yflag
22 FCO Fan Compressor OFF. Allows to select compressor fans lock
OFF (switched off).
(0=n ...1=Y ... 2=dc) yflag
y = fans activated (with controller; based on the value read by the defrost probe,see parameter "FSt");
n = fans off;
dc = not used
ALARMS (folder with "AL" label)
23 AFd Alarm Fan differential. Alarm differential.(1.0 ... 50.0) 2.0°C/F
24 HAL Higher ALarm. Maximum temperature alarm. Temperature value (with regard to Setpoint)which if exceeded in an upward direction triggers the activation of the alarm signal.(LAL ... 150.0) 50.0°C/F
25 LAL Lower ALarm. Minimum temperature alarm. Temperature value (with regard to Setpoint),which if exceeded in a downward direction, triggers the activation of the alarm signal.(-50.0 ... HAL) -50.0°C/F
26 PAO Power-on Alarm Override. Alarm exclusion time after instrument switch on,after a power failure.(0 ... 10) 0hours
27 dAO defrost Alarm Override. Alarm exclusion time after defrost.(0 ... 999) 0min
28 tAO temperature Alarm Override. Temperature alarm signal delay time.(0 ... 250) 0min
DISPLAY (folder with "diS" label)
29 LOC (keyboard) LOCk. Keyboard locking. However, you can enter parameter programming modify them along with the status of this parameter in order to allow keyboard locking.y = yes; n = no(0=n ... 1=Y) n flag
30 PA1 PAssword 1. When enabled (value other than 0) it constitutes the access key for level 1 parameters.(0 … 250) 0 number
31 ndt number display type. View with decimal point. y = yes; n = no(0=n ... 1=Y) yflag
32 CA1 CAlibration 1.Calibration 1. Positive or negative temperature value added to the value read by probe 1.(-120 ... 120) 0 °C/F
33 CA2 CAlibration 2.Calibration 2. Positive or negative temperature value added to the value read by probe 2.(-120 ... 120) 0 °C/F
34ddL defrost display Lock. Viewing mode during defrosting.(0 ... 2) 1number
 
0 = shows the temperature read by the controller probe;
1 = locks the reading on the temperature value read by controller probe when defrosting starts, and until the next time the Setpoint value is reached;
2 = displays the label "deF" during defrosting, and until the next time the Setpoint value is reached.
35 dro display read-out. Select °C or °F for displaying the temperature read by the controller probe. 0 = °C, 1 = °F. PLEASE NOTE: the switch between °C and °F DO NOT modify setpoint, differential, etc. (for example set=10°C become 10°F). 0 number
 
CONFIGURATION (folder with "CnF" label)
36 H00 Probe type selection, PTC or NTC. 0 = PTC; 1 = NTC.(0...1) 1number  
37 H42 Evaporator probe present.(0=n ... 1=Y) yflag
38 rEL reLease firmware. Device version: read only parameter./   
39 tAb tAble of parameters. Reserved: read only parameter./   
COPY CARD (folder with "Fpr"label)
40 UL Up load. Programming parameter transfer from instrument to Copy Card. /  
41 dL Down load. Programming parameter transfer from Copy Card to instrument /  
42 Fr Format.  The default parameters of the instrument will be downloaded to the copy card. /  
        
 
Note:After setting the parameters about timing, it is suggested to power on the instrument again. 
 
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