HITROL HLC-901 Series User manual

HTM-930 & HLC-901 Series
HITROL CO., LTD. 1
Doc. no. : HTM930&HLC901_IM_Eng_Rev.2.1
Issue date : 2020. 11
HITROL CO., LTD.
HEAD OFFICE.FACTORY.R&D INSTITUDE
HITROL CO., LTD. 141, Palhakgol-gil, Jori-eup
Paju-si, Gyeonggi-do, Korea
TEL. : [phone]
FAX. : [phone]
www.hitrol.com
INSTRUCTION MANUAL
VIBRATION TYPE LEVEL SWITCH
HTM-930 & HLC-901 Series

HTM-930 & HLC-901 Series
HITROL CO., LTD. 2
You shall be careful where CAUTION is
marked to carry out the work.
You shall be well-informed of the
contents where WARNING is marked
before carrying out the work.
Table of Contents
Overview................................................................. 3
Operation Principle...............................................3
Characteristics ...........................................................3
Specifications ............................................................ 3
Sensor........................................................................................ 3
Combination Unit ................................................................ 3
Product Composition and Technical Data.......... 4
Dimensions.............................................................. 5
Wiring & Setting...................................................6
Installation.............................................................. 7
Precautions for Installation ..................................7
Maintenance ............................................................8
Precautions for Removal ....................................... 8
Safety and Environment..........................................8
Marking...................................................................8
Model Notation..................................................... 9
Failure Check and Solution.................................. 9
Warranty and Contact.......................................... 9

HTM-930 & HLC-901 Series
HITROL CO., LTD. 3
HTM-930 Series is a Vibration Type Level Switch which detects a level of medium such as
solids or powder with simple structure. The product can be measured the solids of low
density (Styrofoam) and it is basically used for EPS (Expandable Polyethylene) Machine
because it is applicable to Styrofoam which has very low density.
HLC-901 Series is a controller that outputs the level detection results of a medium
(powder) to the relay contacts in conjunction with HTM-930.
The sensor is composed of one module consisting of oscillator coil an induction coil.
When the medium doer not contacted with the sensing probe, the sensor is continuously
vibrated by oscillator coil. However, as soon as the medium touches the probe, vibration
frequency and output from the induction coil are significantly decreased, and relay output
signal is activated by the controller. It can be used for alarm and process control.
■Various kinds of solid and powder levels can be detected.
■Excellent performance for low or high density powder
■Long life cycle due to moveless parts
■On-site operational convenience operational stability and improved maintenance
Overview
Operation
Principle
Characteristics
Specifications
Sensor
Model
HTM-930
Installation
Side or Top
Type
Remote
Ambient Temperature
-20˚C ~ + 60˚C
Process Temperature
Max. 250˚C
Process Pressure
Up to 10kg/cm2
Enclosure
Weather-Proof (IP65)
Body
SS400 / Painting
Process Connection
PT 3/4”(M), SUS304
Wetted Part
SUS 316L
Cable Entry
Shell 14S
Combination Unit
Model
HLC-901L
HLC-901P
Installation
Local
Panel Inside
Ambient Temperature
-20˚C ~ + 60˚C
Power Source
AC 90~240V @ 50/60Hz
DC +24V @ Typ. (Min. DC+17V ~ Max. +35V)
Contact Form
1-DPDT
Relay Contact Rating
AC 250V 5A / DC 30V 5A
Enclosure
Weather-Proof (IP65)
-
Housing Material
Aluminum
PC
Cable Entry
PF 3/4”(F) (std.)
Terminal Block

HTM-930 & HLC-901 Series
HITROL CO., LTD. 4
■ HTM-930 & HLC-901P
■ HLC-901 Series
<HLC-901L>
<HLC-901P>
Product
Composition
and
Technical
Data
<HTM-930>
Head
Cable
Sensor Rod
Coil
<HLC-901P>

HTM-930 & HLC-901 Series
HITROL CO., LTD. 5
■ HTM-930
■ HLC-901 Series
<HLC-901L>
Some tolerances may occur with actual products.
<HLC-901P>
Dimensions

HTM-930 & HLC-901 Series
HITROL CO., LTD. 6
■ HLC-901 Series
<HLC-901P>
<HLC-901L>
Wrong wiring can affect damage of the product.
The power and output lines shall have separate cables.
Wiring &
Setting
Terminal
Block
AC POWER
AC 90~240V Input
DC POWER
DC+24V Input
CONTACT
AC 250V, 5A / DC 30V, 5A Output
SENSOR
Sensor Input
LED
PWR. (POWER)
Green LED is On, when power is applied.
DET. (DETECTION)
Red LED is On, when medium is detected.
Dial
SENS. (SENSITIVITY)
Adjustment of sensitivity.

HTM-930 & HLC-901 Series
HITROL CO., LTD. 7
■ Below recommendation shall be considered when installation.
Do not apply high impact to the product.
The protect plate shall have sufficient area to protect the sensor from incoming
medium and be installed at a distance that does not affect sensor operation.
If more than one level switch is installed in a tank, it shall be installed at intervals
between each sensor. (If the distance between the sensors is short, the operation may
be unstable due to the effects of the instruments on each other.)
Installation
Precautions
for
Installation
■ Use the same standard flange or screw.
■ Make sure to insert washers between bolts and nuts to prevent loosening.
■ Make sure to insert gaskets between flanges. (Select the gaskets in consideration of temperature of
content and pressure of vessel.)
■ After the installation is complete and the cover of the product is assembled, power it on.

HTM-930 & HLC-901 Series
HITROL CO., LTD. 8
The life span of key parts depends on user’s environment and can be used optimally
through periodic check. Therefore, regular inspection ensures optimal performance of
product, so take regular inspection and maintenance at least every year. If the medium is
hard or high viscous, it is recommend to clean and check the sensor frequently after
removing the sensor from the tank.
■Check the level and presence of medium in the tank before removing it.
■Wear gloves when removing it, to prevent a burn.
■Disassemble work shall be done with the power off.
■Power shall be applied after completion of installation and wiring.
■Precautions for Use
- Make sure to connect the product and vessel using required tools for sure.
- Keep the lock key safe and make sure that it is locked.
- Do not apply high impact to the product.
■Precautions for Wiring
- Make sure to wire contacts correctly. (Refer to Wiring and Setting)
- Wire and supply the power to the product after checking the specifications.
- Incorrect power voltage may cause damage to the product.
- Pay attention to prevent electric shock.
■Disposal of Product
- Make sure to separate the amplifier and main unit from housing before disposing the
products. Also, the amplifier shall be detached and discarded the metal and non-
metallic materials.
- No part (ex. Mercury switch) has influence on the environment, so no special attention is
required.
Turn off the power of the product for maintenance.
■Product Identification
- The product identification mark is attached onto the housing and shows the model name,
serial number, working pressure, working temperature, and matters regarding output. The
serial number is a unique manufacturing number for the identification of products.
Maintenance
Precautions
for
Removal
Safety and
Environment
Marking

HTM-930 & HLC-901 Series
HITROL CO., LTD. 9
L: Local
P: Panel Inside
Installation-
The model configuration of the HTM-930 & HLC-901 Series is shown below.
HTM-930
HLC-901*
■ Warranty and Service
The warranty period of this product is two years after shipment of the product and after
sales service will be provided free of charge during this period for problems that would
have occurred during normal use. If after sales service is requested for matters other than
product issues, charges may be requested regardless of the warranty period.
A/S can be requested through our website or below head office.
■Head office · Factory · Laboratory Contact Number
ADDRESS: HITROL CO., LTD 141(98), Palhakgol-gil-road, Jori-eup, Paju-si, Gyeonggi-do, Korea
TEL: [phone] (Head Office and A/S)
FAX: [phone]~9799 (Head Office and A/S)
■If there is no change in output contact even though the medium is detected, check as
shown follows.
Status
Check Point
POWER (PWR.) LED is Off
Check wiring of power, and power On/Off
SENSING (DET.) LED is Off
Adjustment of Sensitivity using SENS . dial
■If there is no vibration from the sensor even though the medium is not detected, check
as shown follows.
Status
Check Point
POWER (PWR.) LED is Off
Check wiring of power, and power On/Off
Weak vibration of sensor
Adjustment of Sensitivity using SENS . dial
Wrong wiring of cable
Check the fastening of direct cable outlet
Check the correct wiring to each color of cables
Bent sensor
Contact Hitrol’s after sales service team
Model
Notation
Failure
Check and
Solution
Warranty
and
Contact