Ketotek Technology Inc.
www.cnketotek.com
1
KT4000 Temperature Controller
Operating Manual
1. Overview
•
KT4000 is easy-to-use and reliable dual relay output
temperature controller. It can be used as automatic
temperature control system for various electric appliances.
2. Mail Features
•
Acrylic panel, plastic-steel socket shell
•
Control heater and cooler to adjust temperature.
•
One setpoint and one differential .Very easy to set .
•
Alarm when temp exceed temperature limit or sensor error
•
Autosave the program setting when power down.
2. Specifications
•
Power Supply: 110Vac±15% , 50/60hz
•
Temperature control range:-19.9~199.9
℉
•
Return difference :1.0~30
℉
•
Temperature control accuracy: ±1
℉
•
Screen resolution : 0.1
℉
•
Temperature sensor : NTC Waterproof sensor 2m/6.56ft
•
Output Relay Contact Capacity: 16A, 100-240Vac
3. Product picture
Left heating socket
connect with heater.
Right cooling socket
connect with refrigerator/cooler.
Dimensions:
Control panel: 92x50x17mm (3.6x1.97x0.67inch)
Socket: 208x66x40mm (8.2x2.6x1.57inch)
4. Key Instruction
•
: Cool output indicator. When this light on, cooling
socket have power output. Cooler start to work ; When the
light flash, cooling socket output delay .
•
:
Heat output indicator. When this light on, heating
socket have power output. Heater start to work.
•
:
Temperature alarm.When the temperature exceed the
limit range of AL~AH, this light flash and buzzer alarm.
•
Operation
•
In normal working status, the screen display
RT
(real time
temperature detected from sensor). press once. it display
temperature set value LS(see code table). press once. it
display differential value Ld.
•
The screen backlight will closed after 10minutes
no-operation.
•
In normal working status, press
SET
for 3s to enter setting
parameter mode. The screen display LS. Press
or
to
increase or decrease LS value. Then press
SET
to go into
next code Ld. Press or to adjust value.
•
Using the same way to set code value from LS~CA one by
one (see code table). After finishing all setting, press
SET
for 3seconds to save the setting and return to normal
display. If no key operation after finishing all settings
within 30seconds, the system won’t save modified
parameter and back to normal display.
•
Restore factory default setting:
•
In normal working status, press
and
together for 3s.
The screen will display FF and restore all code to default
factory setting.
•
Code Table:
•
Basic setting
•
For example,we use this thermostat to control temperature
of a reptile incubator. Heating socket connect with
light.Cooling socket connect with fan.
•
Only need to set LS=80
℉
. No need to change other
parameters.
•
►
Fan works when temperature
≥
84
℉
. Fan stop working
when temperature <80
℉
.
•
►
Light works
w
hen temperature<76
℉
. Light stop
working When temperature
≥
80
℉
.
•
Advanced Setting.
•
Set the required temperature
LS
. Then set
Ld PL AH AL
CA
. (
AH
>
LS
+
Ld , AL<LS
-
Ld).
The controller will work
in following status:
Code
Function
Set Range
Default
LS
Temperature Set Value
-19.9~199.9
℉
68
℉
Ld
Differential Value
1.0~30
℉
4
℉
PL
Set cooling delay output
0~10minutes
0
AH
Alarm high limit
-19.9~199.9
℉
199.9
℉
AL
Alarm low limit
-19.9~199.9
℉
-19.9
℉
CA
Temperature Calibration
-19.9~19.9
℉
0
