User Manual ECS-974neo Temperature Controller
1. Product overview
Mounng size: 71 x 29 mm Product size: 78.5 x 34.5 x 74 mm
1)Temperature measuring range: -50℃~99℃(Only when sensor calibraon value is set to 0)
2)Resoluon: 0.1℃/1℃ seable
3)Accuracy: ±1℃(-40℃~50℃), ±2℃(others)
4)Temperature control range: -50℃~99℃
5)Power supply: 220 VAC±10 %, 50/60Hz; Overall power consumpon: <3W
6)Input port: Cabinet sensor, Evaporator sensor
7)Output port: Cooling/Defrost/Fan
8)Protecon grade of front panel: IP65
9)Operang ambient temperature:0℃~55℃
10)Storage temperature:-25℃~75℃
11)Storage humidity: 20%~85% (non-condensing)
5.Parameter table
2.Display and operation panel
3. Technical parameters
4. LED
set
LED
Seng
Cooling
Defrost
Fan
Drip
Status
ON
ON
OFF
Flash
ON
OFF
ON
OFF
ON
OFF
Meaning
Set administrator menu
Cooling starts.
Cooling stops.
Cooling delays.
Defrost starts.
Defrost stops.
Fan starts.
Fan stops.
Dripping.
Drip stops.
Symbol
drip
No.
Menu
Item
Descripon Seng range Default Unit
℃
℃
Administrator menu password
2 diF Differenal 0.1℃~30.0℃ 2.0 ℃
Higher SEt. Max possible set-point
℃
4 LSE Lower SEt. Min possible set-point -50.0~SEt -50.0 ℃
No.
Menu
Item
Descripon Seng range Default Unit
Ont: On me (compressor). Compressor acvaon me in the event of faulty probe.
OFt: OFF me (compressor). Compressor stop me in the event of a faulty probe.
If Ont=0, the compressor is off.
If Ont≠0 and OFt=0, the compressor is always on.
If Ont≠0 and OFt≠0, the compressor funcons in duty cycle mode per Ont/OFt.
6 OFt 0~250 1 min
7 dOF
Delay (aer power) OFF. Delay aer switch off; the indicated me must elapse
between switch-off of the compressor relay and the successive switch-on.
0~250 0 min
8 OdO
Delay Output (from power) On. Delay me in acvang the outputs aer switch-on
of the controller or aer a power failure.
0~250 0 min
9 dty
Defrost type:0 = electric defrost;
1 = reverse cycle defrost (hot gas);
2 = Free defrost (compressor hot).
0~2 0 /
10
dit
Defrost interval me. Interval between the start of two successive defrost
1~250 6 hour
11 dCt
Defrost Counng type. Selecon of count mode for the defrost interval.
0 = compressor operang hours;
1= fixed me interval;
2 = compressor stop hours.
0/1/2 1 /
Defrost offset hour. Start-of-defrost delay me from startup of controller.
Defrost endurance me. Defrost me-out; dEt=0, defrost is disabled.
Whether to enable evaporator sensor: y=yes; n=no
℃
16
dPO
Defrost (at) Power On. Determines if at the start-up the controller must enter
defrosng (if the temperature measured allows this operaon).
n/y n /
℃
18
℃
19
Fan delay me. Delay me in acvang fans aer a defrost operaon.
20
Drainage me. Dripping me
21
dFd
Defrost fan disable. Allows to select the evaporator probes exclusion during defrost.
n/y y /
22
FCO
Fan Compressor OFF. Allows selecng compressor fans lo ck OFF ( switched off). y =
fans acvated; n = fans off
n/y y /
℃
℃
25
PAO
Power-on Alarm Override. Alarm exclusion me aer controller switch on or aer a
power failure.
0~15 0 hour
Defrost Alarm Override. Alarm exclusion me aer defrost.
Temperature Alarm Override. Temperature alarm signal delay me.
Keyboard locking. y = yes; n = no
ndt number display type. View with decimal point. y = yes; n = no n/y y /
31
CA1
Calibraon 1. Posive or negave temperature value added to the value read by
-12.0~12.0 0 ℃
32
CA2
Calibraon 2. Posive or negave temperature value added to the value read by
probe 2.
-12.0~12.0 0 ℃
33 ddL
Defrost display Lock. Viewing mode during defrosng.
0 = shows the temperature read by the cabinet probe;
1 = locks the reading on the temperature value read by cabinet probe when
defrosng starts, and unl the next me the Set-point value is reached;
2 = displays “dEF” during defrosng, and unl the next me the Set-point value is
0/1/2 1 /
ECS-974neo is a universal standard temperature controller.