Zhongshan Shangfang Instrument Meter SF-105 User manual

Model: SF-105 Digital Temperature Controller
Dimension:77(Length) 35(Width) 60(Depth)mm
Mounting hole dimension:71(Length) 29(Width)mm
× ×
×
0=Electric heater
1=Hot gas
0~40 /
above setpoint
℃ ℉
40~0 /
below setpoint
－ ℃ ℉
0
1 90Min～60Min
F5
0=Parallel with comp.
1 = Continuous running
except defrost
Fan operating function
Defrost function
High temperature alarm
Low temperature alarm
Alarm time delay
F0
Parameter
Parameter
Function
Function Set range Set range
Default
Default
0 20
32 68
～℃
～℉8
46
℃
℉
45
120℃ ℉
20
68℃ ℉
1 10
1 18
～℃
～℉4 7℃ ℉
－ ～ ℃ ／ ℉5 5
－ ～ ℃ ／ ℉5 5
0= 1=℃ ℉
0
0
0
0
1 60Min～
0 24Hr～
20Min
6Hr
0
F1
F2
F3
F4
～Set temp.
Set temp.～
0 10Min～2Min
E1
E2
E3
E4
E5
E6
0=Normal display
1 = Last value
before defrost
Lower setpoint limit
Higher setpoint limit
Temp. hysteresis
Comp.start delay time
Offset on room temp.
Offset on evap. Temp.
Max. Defrost duration
Defrost interval time
Defrost termination temp.
Display during defrost
Temperature unit
C1
－ ℃
－ ℉
45
40
－℃
－35 31℉
20
－20
C2
C3
C4
Front Panel Operation
1 . Set temperature (compressor stop temperature) adjustment
Press button, the set temperature is displayed.
P o modify and store the displayed value , Press button to exit the and
display the cold room temperature.
If no more button is pressed within 6 seconds, the cold room temperature will be displayed.
(Set temperature adjustment range: parameter E1 E2)
2. Manual start/stop defrost: Press button and hold for 6 seconds to defrost or stop defrost.
3. Display the evap. Temperature : Press button and hold for 6 seconds, the evap. Temp. is displayed.,
After 6 seconds the cold room temp. is resumed to be displayed.
4. Refrigeration LED:During refrigeration,the LED is on;When the cold room temp. is constant,the LED is off;
During the delay start, the LED flashes.
5. Defrost LED: during defrosting, the LED is on; When it stops defrosting, the LED is off. During the delay
display of defrost, the LED flashes.
6. Parameter setup
Press button and hold for 6 seconds to enter the parameter setup mode while E1 flashes.
Press again button to select sequentially from the parameters : E2,E3,E4,E5,E6,F1,F2~C4.
Press or button, the value of parameter will be displayed and can be modified and stored.
If no more button is pressed within 6 seconds, it will return to normal operation mode.
ress or button t adjustment
～
Features of Function
Mini-sized and integrated intelligent control and applicable to the compressor of one HP.
Temperature Display/ Temperature Control/ Manual, automatic defrost by electric heater or hot gas
/Evap. Fan Control/High,Low temperature alarm/ Value Storing/ Self Testing /Parameter Locking
Specifications
1. Output of the outside sealed transformer:AC12V(one transformer matched with one temp. controller)
2. Temperature sensor: NTC, Double sensors(for cold-room temp.&defrost control),2m(L)
3. Range of temperature displayed : 5 45 ( 4
5 45 ( 4
～℃ —
～℃ —
～℃
1℃ ±
℃
－ ℉ ± ℉
－ ℉ ± ℉
－
4 0~120 ); Accuracy: ( 2 )
4. Range of set temperature: 4 0~120 ); Factory default :0 ( 32 )
5. Temperature of the operating environment: 10 60 Relative Humidity:20%~90%(Non-condensing)
6. Output contact capacity:
Compressor: N.O. 20A/250VAC
(applicable to 1 HP Compressor,if more it needs to connect anAC contactor)
Defrost: N.O.10A/250VAC (applicable to 1KW load, if more it needs to connect an AC contactor)
Evap. Fan: N.O. 5A/250VAC

7. The factory default resumption: press button for 1 second and then press button simultaneously for 6
seconds, the indicator flashes , all parameters will be resumed as same as factory defaults. After 6 seconds,
it returns to the normal operation.
8. Lock parameters
In normal operating,press button and hold for 6 seconds to lock the parameters if OFF displayed
(No odification is allowed),or to unlock if ON is displayed. Parameter can be displayed only and can not
be modified if locked, but the adjustment of the set temp. is still active.(the factory default is ON )
" "
" " " "
is
m
Circuit Diagram
Notes for Installation
1. Sensor leads must be kept separately from main voltage wires in order to avoid high frequency noise induced.
Separate the power supply of the loads from the power supply of the controller.
2. When installation the sensor shall be placed with the head upward and the wire downward; The evaporator
sensor must be installed between the fins of the evaporator in the area, where probably the ice is the thickest.
Don't place the evaporator sensor near the electric heater.
3.
The temperature controller can not be installed in the area with water drops.
In case of long-distance sensor installation from the controller, the sensor cable may be prolonged up to
100 m max. without any re-calibration.
4.
Function details
1. Temperature control
After the delay time,the compressor starts operating when cold room temperature (set temp.+ Hysteresis),
and will be off when cold-room temperature set temp.
To protect the compressor, it can re-start unless the time when the compressor stops every time is longer
than the delay time (Parameter E4).
2. Defrosting Functions
Electric heating defrost: The defrost LED and the heater turns on,
Hot gas defrost : The defrost LED and valve will turn on . When the
stops. A valve will turn off , compressor will restart-up,
Enter the defrost status: It defrosts and heats only if the temp. of the evap. sensor is less than the defrost
termination temperature (Parameter F3).
Exit the defrost status: When the temperature of the sensor is over the defrost termination temp.
or the defrost duration end, it will exit the defrost status.
When the defrost interval time is se tot 00 , the function of automatic defrost will be cancelled.
3. Display during defrost
When setting the parameter F4=1, the room temperature is locked during defrost, and the last value before
defrost is displayed. When defrost ends, normal display will be resumed after 20 minutes delay of room
temperature display (or set temp.is reached). The defrost LED flashes during the delay.
4.
5. Abnormal work mode
When room sensor is short-circuited or overheated (more than / ) HH is displayed; When room
sensor is open-circuiedt or too low (less than / ) LL is displayed. At that time
the compressor operates automatically by the cycle of 45 minutes on and 15 minutes off.
When evap. sensor fails or over the displayed range, the defrost termination will be just controlled by the
defrost duration. (Parameter F1)
≥
≤
—
the compressor stops. The heater will be
disconnected after the defrost duration ends.After two minutes dripping time , it will exit the defrost status
and start the compressor. After two minutes delay time the evaporation fan will run.
the defrost duration ends, compressor
fter two minutes delay the after two minute the fan
will run.
evap.
set temp. set temp.
120
temperature is 4 0
" "
" "
" "
The alarm function
When the power is on and after the compressor turns off , the alarm function is set.
When the cold-room temperature is higher than ( + C2) or lower than ( C3) , it will alarm
after the delay time(E4) and the display will flash. The buzzer will sound. The sound can be cancelled by
pressing random key.
℉
℉
－
45
5 4
℃
℃ —
Accessories for the temperature controller
1. One attached transformer
2. Two temperature sensors
3. One installation stand
4. One cover panel and 1 3 10mm screwφ ×