HITROL HTM-30N Series User manual

HTM-30N Series
HITROL CO., LTD. 1
Doc. no. : HTM-30N_IM_Eng_Rev.4
Issued 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
VIBRATION TYPE LEVEL SWITCH
HTM-30N Series

HTM-30N Series
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.
You should be aware of where NOTICE is marked
to carry
out the work.
Table of contents
Overview 3
Operation Principle and Composition 3
Characteristics 3
Specifications 4
Dimensions 5
HTM-30N (Weather Proof) 5
HTM-30N-Ex (Explosion Proof) 6
Installation 6
Precautions for Installation 7
AMP and Wiring 7
Precautions for Use 8
Prec 8
Safety and Environment 8
Precautions for Lead-In Method of External Wire
9
Failure Check & Maintenance 9
Marking 10
User Training 10
Warranty and Contact 10
APPENDIX
APPENDIX G HTM-30N Setting Guide
APPENDIX H Serial USB Terminal Install Guide

HTM-30N Series
HITROL CO., LTD. 3
Overview
Operation
Principle and
Composition
Characteristics
A certain level of electric signal is transferred to the piezo sensor so as to vibrate the
tuning fork. The vibration of the latter is reduced when it comes in contact with the
subject. As such, the electric signal is reduced to stop the oscillation of the piezo sensor.
The electric signal is detected by the electronic circuit to operate the relay, so that the
state can be detected with the contact output.
CABLE ENTRY
HOUSING
CONNECTION
FLANGE
TUNING FORK
EXTENSION PIPE
CONNECTION
SCREW
Applicable for various solid or Liquid.
It is semi-permanent with a solid structure and no mechanical drive.
Available for Measurement Range Setting.
Easy to Control the Relay Contact(NO, N.C).
Applicable Connection Port for setting and monitoring by Computer.
Explosion-proof type is available.
The HTM-30N Series is a tuning fork-type vibrating level switch that consists of one
membrane and two stainless forks to detect powder and output the state using the
relay contact, which is applicable for alarm and process control.

HTM-30N Series
HITROL CO., LTD. 4
Specifications General
Amplifier
Model HTM-30N HTM-30N-Ex (Ex-proof)
Housing ; Cable Entry PBT / AL.C ; 2- PF 1/2 (F) AL.C ; 2- PF 1/2 (F)
Enclosure Weather-Proof
(PBT ; IP65 / AL ; IP66)
Ex d IIC T3
,
IP66
Ex d IIC T4
,
IP66
Ex d IIC T6
,
IP66
Max. Temperature 150 150 120 70
Ambient temp. -20 C ~ +60 C
Max. Process Pressure 20kgf/ (Screw Type)
Mounting Screw, Flange
Power Source AC 90V~240V , 50/60Hz / DC +24V
Output Signal DPDT
Contact Rating AC 250V, 5A / DC 30V, 5A
Wetted Part Material 316L SS + SCS14
Process Connection PT 1 (M)
Installation Side & Top
Item Specification
Module M-30N
Micom 16Bit Microprocessor
Oscillation Frequency 380KHz @ 50KHz
Sensitivity Resolution 1Hz
Function (Adjustment)
Sensitivity
Relay Delay Time
Relay Return Time
Relay Contact Control (Normal / Reverse)
Relay Contact Out Control Normal Close @ Default.
Status Indicator Bi-Color LED [Green / Red / Orange]
Detection Indicator RED LED
Relay Control Indicator GREEN LED
Dielectric Constant 0.6g/cm3 @ Min. (Liquid)
Dimension 80mm x 65mm x 54mm
Weight 110g

HTM-30N Series
HITROL CO., LTD. 5
Dimensions
Weather Proof
Standard type (PBT)
Extension type (PBT)
Standard type (AL.C)
Extension type (AL.C)

HTM-30N Series
HITROL CO., LTD. 6
Explosion Proof
Installation
Extension type (AL.C)
Standard type (AL.C)
When installing the Sensor, avoid bumps or obstructions.
Fluid flow is severe near the outlet, and mechanical damage or chattering can occur, so
installation should be avoided in this area.
The temperature and pressure generated inside the tank must be checked to the
specification.
Condensation may occur if the temperature of the housing differs significantly from the
ambient temperature.
Dehumidifier filling or Gortex must be applied.
When tightening flanges or screws, they must be of the same size.
The flange and the flange must be tightened together with the gasket.
(The gasket shall be selected by considering the temperature of the content and the
pressure of the container.)
In the case of explosion - proof products, you should apply the appropriate
rating for your installation.
Some tolerances may occur with actual products.

HTM-30N Series
HITROL CO., LTD. 7
HTM-30N Series is installed on the top or the side of a container and silo to detect the
upper or the lower limit, respectively. The level switch can be installed on any material,
so it is applicable to ferrous or nonferrous tanks and silos. When installing this product,
consider the following:
When installation, the process connection should be screw or flange type, and a
length of the screw should not be over 24mm. Otherwise, dust or foreign matter may
enter, resulting in a malfunction. For horizontal installation, mark indicated in below
drawing facing upward and installing the wide surface of the fork vertical.
The direction of the tuning fork can be checked from the outside.
To prevent buildup, the product should be installed at an inclination of or more.
In addition, the wing of the sensor must be installed vertically.
Avoid the inlet to install the sensor and maintain enough distance to prevent direct
contact with the content.
Cable lead-in inlet must face the direction shown in the figure.
If the housing temperature rises because of direct sunlight, install a sun cover to
prevent such occurrence.
Precautions
for Installation
AMP & Wiring
Set upwards
Connect AC (90~240V) or DC (24V) according to the power specifications.
Make sure to connect the power with the correct polarity (+,-).
Do not connect the wire with the power connected.
This product provides DPDT. Wire it with COM and NO Terminal to use High Contact.
Make sure to connect it to an external ground.
For explosion-proof products, apply power after tightening the cover.

HTM-30N Series
HITROL CO., LTD. 8
Precautions
for Use
Precaution
for Removal
Safety &
Environment
The level switch that prevents the vibration of the tuning fork is good for most of the
bulk materials, but the following need to be taken in consideration.
Do not install in a hazardous area unless it is an explosion-proof product
(HTM-30N-Ex).
The explosion-proof product (HTM-30N-Ex) can be installed in zone 1 and zone 2.
Do not use when the temperature is out of the ambient temperature range
(-20 ~
Do not use if the degree of protection is higher than IP 66
Do not use in a place with vibration.
Check the level and presence of liquid in the tank before removing it.
Overheated product may cause burn, so wear gloves to remove it.
Remove it with the power disconnected.
Make sure that any O-ring or gasket is not damaged while opening or closing
the cover.
Make sure that it is not subject to any high impact when moving.
If there is explosive gas in the atmosphere, do not open the cover.
Cautions for Use
- Make sure to connect the product and the container using the required tools.
- Do not cause high impact to the product.
Cautions for Wiring
- Make sure to connect contacts with the correct terminals. (Refer to Wiring.)
- Wire and supply the power to the device after checking the specifications.
- Incorrect power voltage may cause damage to the device.
- Pay attention to prevent electric shock.
Disposal
Make sure to separate the AMP and main unit from the housing before disposing
the product. No part has an influence on the environment, so special attention is
not required (e.g., mercury switch).

HTM-30N Series
HITROL CO., LTD. 9
Precautions
for Lead-In
Method of
External Wire
Failure Check
& Maintenance
External wiring precautions (Explosion-proof type)
Certified cable gland (Ex d IIC, IP66 or higher, PF 1/2") must be used for cable entry.
Unused inlets must be sealed with certified plugs (Ex d IIC, IP66 or higher, PF 1/2").
Grounding Precautions
- As shown below, connect the external grounding with the wire at 4 .
Make sure to insert a washer if the terminal lug is removed from the ground
terminal and subsequently reconnected. (loosening prevention)
External grounding
4 (4mmSQ)
Outside of HEAD (PBT) Outside of HEAD (AL.C)
Maintenance
The primary check part of the vibration level switch is divided into sensor and transmission parts.
he lifespan of key components depends on your environment and can be used optimally through
periodic checks. Therefore, the user should perform maintenance at least once a year through
periodic checks.
Check the exterior of the product visually for damage.
Foreign substances attached to the sensor may cause poor sensitivity and should be removed
regularly.
Failure Check
1) Is the power connection correct?
2) Is the power voltage supplied correctly?
3) Is cable wiring correct?
4) Is the FAIL-SAFE MODE setting correct?
Turn off the power of the product for maintenance.
In a hazardous area, do not disassemble when power is applied.

HTM-30N Series
HITROL CO., LTD. 10
Marking
User Training
Warranty
& Contact
Warranty & Service
This product is subject to a two-year shipment warranty. Unpaid service will be provided
for any damage found under normal operating conditions. If it does not refer to product
failure, payment will be required for the service charge.
You can request for A/S through our website or by contacting our headquarters.
Headquarters Factory Laboratory Contact Number
Address : HITROL CO.,LTD 141, Palhakgol-road, Jori-eup, Paju-si, Gyeonggi-do, Korea
TEL : [phone] (Headquarters and A/S)
FAX : [phone] (Headquarters and A/S)
Product Identification
The product identification mark is attached onto the shows the model name, serial
number, working temperature, working pressure, and matters regarding output. The
serial number is a unique manufacturing number for the identification of products.
Under the aforementioned, do not exceed 15
containers when using the product. In addition, make sure that the ambient
temperature of housing is kept at -
Explosion-proof products are designed according to Article 34 of the Industrial Safety
and Health Act and Article 58-4 of the Enforcement Regulations of the same Act.
Do not apply general products to hazardous areas and explosion-proof products
can only be used in zone 1 and zone 2.
Install in accordance with explosion-proof temperature rating and fluid temperature.
< Weather Proof >
< Explosion Proof >

Doc. no. : Rev0.0
Issued Date : 2020.04.29
Serial USB Terminal
Serial USB Terminal Install & Setting Guide
Application : Level Switch / Level Transmitter

Doc. no. : Rev0.0
Issued Date : 2020.04.29
Installing Serial USB Terminal App
Search and Install a App that "Serial USB terminal" in the App Store.
Serial USB Terminal Setting
Run The Serial USB Terminal Icon
Four types of environments must be set up for normal operation of Serial USB Terminal.
Serial
Terminal
Receive
Send