HITROL HLC-300N User manual

HLC-300N
HITROL CO.,LTD. 1
Doc. no. : HLC300N_IM_Eng_Rev. 1
Issue date : 2020. 04
HITROL CO., LTD.
HEAD OFFICE.FACTORY.R&D INSTITUDE
HITROL CO.,LTD. 141, Palhakgol-gil, Jori-eup
Paju-si, Gyeonggi-do, Korea
TEL. : (00)[phone]
FAX. : (00)[phone]
www.hitrol.com
INSTRUCTION MANUAL
Level Controller & Alarm Unit
HLC-300N

HLC-300N
HITROL CO.,LTD. 2
You should be careful where CAUTION is marked to carry
out the work.
You should be well-informed of the contents where
WARNING is marked before carrying out the work.
Table of Contents
Overview · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 3
Characteristic · · · · · · · · · · · · · · · · · · · · · · · · · 3
Operating Principles and Composition · · · · · · 3
Dimension · · · · · · · · · · · · · · · · · · · · · · · · · · · · 4
Specification· · · · · · · · · · · · · · · · · · · · · · · · · · · 4
Wiring · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 5
Installation · · · · · · · · · · · · · · · · · · · · · · · · · · · 5
Safety and Environment · · · · · · · · · · · · · · · · · 6
Failure Check · · · · · · · · · · · · · · · · · · · · · · · · 6
Marking · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 7
Warranty and Contact· · · · · · · · · · · · · · · · · · · · · 7

HLC-300N
HITROL CO.,LTD. 3
Overview
Characteristic
Operating
Principle
and
Composition
■ The compact size.
■ Easy to install DIN Rail or Bolting type.
■ LED can be checked in operation status.
(High Alarm & Low Alarm : Red / L-H Control : Green)
HLC-300N is a level control and alarm unit to be combined with a level switch
(HE, HQ, HR Series) for storage tank, detecting of high and/or low level in the tank.
Using the relay contact, it can be used for operating of automatic filling or
discharging control and alarm, and can be installed inside the control panel.
When the level switch which is connected to HLC-300N detects a liquid in the tank,
leakage current flows and it is sensed by the leakage current sensing, circuit, and
transistor is activated. Accordingly, relay contact is changed and it can be used for alarm
and/or control signal.
HLC-300N Body
DIN-Rail Mounting Button
Terminal
Bolt Hole

HLC-300N
HITROL CO.,LTD. 4
Dimension
※ Actual Product may have a tolerance slightly.
Specification
Model HLC-300N
Mounting Panel Inside (DIN Rail or Bolting)
Ambient Temperature -20℃ ~ +60℃
Power Source AC 110 / 220V @ 50/60Hz
Standby Power consumption AC110V @ 1.14W / AC220V @ 1.1W
Active Power Consumption AC110V @ 6.2W / AC220V @ 7W
Relay Contact AC250V/5A, DC30V/5A
Contact load capacity AC 250V, 5A Max.
Transmit Signal E5 (AC14V @ 50/60Hz)
LED State
E2 / E3 (Green) : L-H Control (1-SPDT)
E1 / E4 (Red) : H.H / L.L Detection (2-SPST)
Cable & Distance Def, 1.25 SQ @ Max.300m
Weight 325g
Housing ABS
Unit : mm

HLC-300N
HITROL CO.,LTD. 5
Wiring
Installation
Control
& Alarm
ALARM (BUZZER) CONTROL ALARM (BUZER)
H. A DRAIN PUMP L. A
Led Color Red Green - Red
Input E1 E2 E3 E4
Output H.A, COM (C, B) NO, COM NC, COM L.A, COM (C, B)
■ When fixing with bolt, it is recommended to fasten the washer to prevent loosening.
■ After confirming the wiring diagram on the manual or sticker, connect the cable.
■ Make sure the power supply is AC110V or AC220V set at the time of ordering.
■ Connection between controller and level sensor It is recommended to use AWG 13
or 14 wire for cable.
If the distance between the controller and the level sensor is long (within a few
hundred to 500 meters) and the conductivity is low
It is recommended to use shielded cable when using in medium.
(When using cable other than the recommendation, the operation performance and
level sensing distance may be slightly different.)
■ Check the status of LED lighting after power on.
■ Power must be applied after installation is completed.
Disassenbly
must be done with the power off.

HLC-300N
HITROL CO.,LTD. 6
Safety and
Environment
Failure
Check
■ Precautions for Use
Do not disconnect the cable during use.
Do not apply high impact to the product.
■ Wiring Precautions
Wiring must be done to the terminal that matches the wiring position.
(Please refer to the wiring method)
■ Disposal of Product
When disposal is not possible, it is recommended to separate and dispose of the PCB
and body parts inside the product housing.
No part has influence on the environment, so no special attention is required.
■ Relay contact does not work
- Check whether the LED is lit or not.
- Check cable connection status.
- Check the input voltage status.
- Check the wiring of the level sensor.
■ Controller is normal but does not work
- The presence of sediments such as debris or calcareas on the bottom of the tank
may cause malfunction.
- Conductivity of liquid which is too low may cause malfunction.
(ex. distilled water)
- It may cause malfunction if the wiring connected to the controller and the electrode
is far away.
- Refer to the Cable Recommendations between Controller and Sensor for installation
precautions.
- Check if the float is normal.
- Check the incoming signal during normal operation of the float.
Float type
Electrode type

HLC-300N
HITROL CO.,LTD. 7
Marking
Warranty
and Contact
■ Warranty and Service
This product is subject to the warranty for 2 years of shipment and unpaid service
will be provided for any damage found under normal operating conditions. If it is not
about the failure of product, the service charge will be payable.
You can request A/S at our website or by contacting our headquarters.
■ Headquarters ․ Factory ․ Laboratory Contact Number
ADRESS:
HITROL CO., LTD 141, Palhakgol-gil, Jori-eup, Paju-si, Gyeonggi-do, Korea
T E L : 031-950-9700 (Headquarters & A/S)
F A X : 031-943-5600 (Headquarters & A/S)
INTERNET
: http://www.hitrol.com
The recognition mark of the product is attached to the housing, and the model name,
input / output, serial number and quality control information are displayed.
- It is attached to the front of the product and shows the model name, input and
output.
- It means it is attached to the side of
the product and has passed the
internal quality system.
- It is attached to the underside of
the product and has the serial number.