7.Abnormal heating protection function description:
Schematic diagram of the working principle of “abnormal heating protection function”
(set A=OFF/t=20 minutes):
Continue heating for 20 minutes
.
POWER ON
.
PV
SV
Program records
the current temperature
value (P1=20.5°C)
.
PV
SV
Program records the
current temperature
value (P2=30.0°C)
.
note:
In the timing process, if the heating reaches the set value (stop heating),
the timing will be cleared; if the heating range is
3°C, no alarm will be generated.
≥
When the timing is over and the temperature rise is less than 3°C (P2-P1 < 3°C),
the program considers this heating to be an "abnormal heating" behavior.
Cyclic heating
8.Some examples of functional applications of the
meter include:
11.Instrument alarm or fault display code meaning:
"
Abnormal warming protection function" is mainly to solve the customer's response to the turtle
box in the constant temperature process temperature probe exposed to the water due to other
factors or in the water change, maintenance process temperature probe forget to put into the
water, the risk of development and protection of the development of protection Sex program
features. It is mainly determined by comparing the measured temperature value and the
continuous warming time at different periods of the heating process. When the instrument
considers this abnormal heating, the output of the relay is first turned off and the instrument
immediately stops heating. At the same time, the PV window displays the fault code “EP” and
continues beeping. Remind users of abnormal heating. Users should promptly investigate the
cause of the failure. After unplugging the power plug of the meter and plugging it in again, the
meter may be released from the locked state and the normal heating control may be resumed.
1. When the temperature probe is not placed in the water or the probe
accidentally leaves the water:
2. when the heater is not heated when the alarm:
3, water shortage anti-dry protection:
When the meter starts to warm, the program records the current temperature
measurement and the timer program starts timing. Since the temperature probe
is not in the water, the measuring temperature of the meter will hardly change or
decrease.When the time reaches the preset t time, the temperature difference
between the measured temperature and the starting temperature is
3°C.
When it is reached,it is a normal warming state. If it does not reach this condition,
it is regarded as an abnormal warming behavior. Then, the program will stop
heating information, lock the fault, and beep at the same time. The user is
reminded that the temperature probe is out of the water and there is a danger of
heating.
When the instrument is operating in a constant temperature process, if a
problem occurs in the heater and the heating cannot be normally performed, the
timing program starts timing after the program performs a warming action.
Because the heater malfunctions, the measured temperature of the instrument
will hardly change or decrease. When the time reaches the preset T time, the
difference between the temperature measured at this time and the temperature
value at the beginning of warming is
3°C. When it is reached, it is a normal
warming state. If it does not reach this condition, it is regarded as an abnormal
warming behavior. Then, the program will stop heating information, lock the fault,
and beep at the same time. Remind users of
problems with the heating system.
Enabling this feature requires a "water level switch" to be implemented.
When the water level in the water tank falls to the trigger point of the “water level
switch” or the water in the tank is lost due to unknown reasons, the meter
program will turn off the heating output. The PV digital pipe on the upper window
displays the fault code “ES” and the “water level” indicator point. Light and beep
alert. Remind the user of abnormal water levels in the tank.
≥
≥
9.Instrument wiring diagram description:
TYPE:CL-809A
TEMP:-20 120
～
℃
POWER:220VAC 50HZ
/
Over temperature
sensor
50K NTC
220VAC
note:
Socket output maximum power 800W
Temperature
sensor
Output socket
Power plug
50K NTC
220VAC
If the wiring diagram of the instruction manual is not consistent with the wiring
diagram on the meter housing, the wiring diagram on the housing shall prevail.
When the power of the external heater is too large, in order to ensure the safety
and long-term stable operation of the heating system, externally switching
high-power AC contactors may present potential safety hazards.
10.Water level switch accessories and installation notes:
1. The water level switch (liquid level switch) has a wide variety of shapes
and can be equipped with water level switches suitable for installation
according to the requirements of their own site.
2, the water level switch is best installed by a professional electrician,
when installed, the water level switch should be vertical or horizontal with
the water surface, can not have a large tilt angle; water level switch
installation site must have a cofferdam, to touch the water inside the turtle
and other animals caused by mistake Action; regular cleaning of debris in
the cofferdam to prevent water level switch can not normally detect the
water level.
Maximum range
The “LLL”character appears when the
temperature probe is damaged or has a large
value, reminding the user to replace the new
temperature probe.
Ultra minimum range
The “HHH” character appears when the
temperature probe is damaged or has a large
value, reminding the user to replace the new
temperature probe.
Upper limit over
temperature alarm
Exceeding the upper limit alarm setting will
result in the “EH” character, the
simultaneous turning off of the output and a
beep alarm.
Lower limit over-
temperature alarm
Exceeding the lower limit alarm setting will
result in an “EL” character and a beep alarm.
Higher deviation over
temperature alarm
Exceeding the upper deviation alarm setting
will result in the “Eb “character, the
simultaneous turning off of the output and
the buzzing alarm
Lower deviation over
temperature alarm
Exceeding the lower deviation alarm setting
value will cause “EA” characters and beep
alarms at the same time.
Out of range alarm
If the alarm setting value exceeds the range,
the “EE” character and the buzzer alarm will
appear.
Abnormal warming
alarm
When the “abnormal heating” condition is
reached, the “EP” character will appear and
the output will be turned off and beep alert
Water level alarm
If the water level is too low or there is a lack
of water, the “ES” character will appear and
the output will be turned off and the beep
alert will be turned off.
12.installation and use precautions Description:
1, in order to prevent high-frequency interference, the probe line can not be
with the power line or output power line together amount away from the power
or power line, there is space to separate wiring.
2. The instrument drives high power load (more than 800W), it is best to connect
the relay or AC toucher. To extend the life of the instrument's internal relays.
3, if you want to extend the probe line due to installation reasons, the longest
can not exceed 100 meters.
4, in order to ensure the normal use of the instrument, please avoid in a
corrosive, flammable, explosive, damp used in harsh environments.
5. After the instrument software/hardware function is upgraded, please refer
to the latest version specification. .
6, Factory equipped with accessories: integrated temperature controller,
a manual. Instrument use such as abnormal, please first check the
instructions or call the factory after-sales technical support phone for
technical support 0086-15107613940/E-MAIL: [email protected]
Small float
level switch