HW 557 or W1209 Temperature relay Controller Description HW 557
This video explain how temperature relay controller work for cooling system.
00:00 Diagram
00:11 Setting HW-557 module
Setting mode, press left button 5 seconds.
P0 Mode C Cooler and H Heater
P1 Range before start, different temp. Example +3 from set point. HW 557 will run after 3 to 0 different temperature in deg.C.
Settting 30 deg.C, relay active after 33 deg.C and still run after down to 30 deg.C.
P2 High setting temp, example 50 mean you can set number temp to 50 degC
P3 Low setting temp, example 20 mean the setting lower temp limit to 20 deg.C
P4 Calibratoin HW 557. May be you extend probe / termocouple. May be display temperature will different compare actual temperature. You can correction or re-calibration with the other termostat.
And adjust maximum -7 or +7
P5 Time delay before relai active. Wating about 0 (will start 0 seconds), or wating until maximum 10 minutes. You can choice this setting
P6 Switch relai alarm temperature. Select On and Off, and set temp deg.C
01:32 Calibration example adjust HW 557 with the other digital termometer. Setting via P4 Menu
02:08 Application HW 577 - maiantance temperature room, below 31.1 deg.C
02:30 Adjust P1 Range temperature controller
03:10 Application HW 577 - Cooler battery pack during charger. Fan active if battery going hot. Make battery keep cooling during charging. Responsive setting with 0.1 deg.C
04:05 Maintance temperature chip, panel electric etc. This video show how keep LED can work in lower temperature. And compare if LED going hot without temperature control.
If you see many setting. Actually you only need 3 setting with HW 557.
1. Set point temperature must run relay switch.
2. Setting for Cooler or Heater
3. Setting temperature range
Specifications:
Model: W1209
Dimensions: 48.5 * 40mm
Temperature Control mode: ON / OFF
Temperature Range :-50 - 110 degree centigrade
Resolution: When temperature is 0.1 degree, the resolution is -9.9~99.9, other temperature segment is 1 degree.
Control Accuracy: 0.1 degree
Hysteresis Accuracy: 0.1 degree
Refresh Rate: 0.5s
High Temperature Protection 0 - 110 degree centigrade
Supply Voltage: DC 12V
Static Current: Less than 35MA, attract current less than 65MA
Output Voltage: DC 12V
Output Power: 20A relay
Measurement Input: NTC (10K 0.5%) Waterproof Sensor
Environmental Requirements: -10 - 60 degree centigrade; Humidity 20% - 85%
Instructions for use:
Connect the power supply and equipment, the measuring temperature is displayed,
press the "SET" button, press " + or - " to set the desired temperature (long press " + or - " to quickly increase or decrease),
press "SET" to confirm the setting and return, controller automatically performs the relay ON/OFF.
the thermostat output is 10A relay, meet a variety of high-power loads. LED Indicator: LED off indicates the relay off; Lighting, indicates the relay is closed.
Digital LED Tubes: "LL" indicates sensor open, "HH" indicates overrange, the relay will be forcibly disconnected; "---" indicates high temperature alarm
Long press the "SET" button to enter the main menu settings,
press " + or - " to switching between P0-P6,
then long press "SET" or 10 seconds without keystrokes to confirm the setting and return.
Package Included:
2*W1209 12V DC Digital Temperature Controller Board
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