HITROL HTM-20N Series Bedienungsanleitung

HTM-20N Series

HITROL CO., LTD. 1

HITROL CO., LTD.

HEAD OFFICE.FACTORY.R&D INSTITUDE

HITROL CO., LTD. 141, Palhakgol-gil, Jori-eup

Paju-si, Gyeonggi-do, Korea

TEL. : (+82)-31-950-9700

FAX. : (+82)-31-943-5600

www.hitrol.com

INSTRUCTION MANUAL

VIBRATION TYPE LEVEL SWITCH

HTM-20N Series

Doc. no. : HTM20N_IM_Eng_Rev.4.3

Issue date: 2023. 12

HTM-20N 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

Characteristics · · · · · · · · · · · · · · · · · · · · · 3

Operating Principle and Appearance · · · · · · 3

Specifications · · · · · · · · · · · · · · · · · · · · 4

Dimensions · · · · · · · · · · · · · · · · · · · · · · · 5

Weather-proof Version (PBT) · · · · · · · · · · · · · 5

Weather-proof Version (AL.C) · · · · · · · · · · · · 6

Attachment and Precautions · · · · · · · · · 7

Installation on Side (Horizontal) · · · · · · · · · · · · 7

Installation on Top (Vertical)· · · · · · · · · · · · · · · 7

Technical Data · · · · · · · · · · · · · · · · · · 8

Use · · · · · · · · · · · · · · · · · · · · · · · · · · 9

Maintenance · · · · · · · · · · · · · · · · · · 9

Failure Check · · · · · · · · · · · · · · · · · 9

Precautions for Removal · · · · · · · · · · · 9

Precautions for Installation · · · · · · · · · 10

Precautions for Transportation and Assembly · · · 10

Precautions for Lead-In Method of External Wiring

(Ex-proof) · · · · · · · · · · · · · · · · · 10

Precautions for Grounding (Ex-proof) · · · · · 10

Safety and Environment · · · · · · · · · · · · · · · 11

Marking · · · · · · · · · · · · · · · · · · · · · · · · · · · · 11

User Training · · · · · · · · · · · · · · · · · · · 11

Warranty and Contact · · · · · · · · · · · · · · · · · · 12

APPENDIX

APPENDIX O · · · · · · · · HTM-20N Setting Guide

APPENDIX H · · · · Serial USB Terminal Install Guide

HTM-20N Series

HITROL CO., LTD. 3

Overview

Characteristics

Operation

Principle and

Appearance

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.

■ Level of different powder types can be detected.

■ It can measure powder particles, ranging from small to large.

■ The membrane is made of stainless steel with a solid structure and a high bearing capacity.

■ The wiring is simple.

■ Operation can be checked at the site.

■ It has a simple structure for easy maintenance.

The HTM-20N Series is a tuning fork type vibration 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 alert and process control.

CABLE ENTRY

HOUSING

CONNECTION

SCREW or FLANGE

TUNING FORK

M-20N Module

HTM-20N Series

HITROL CO., LTD. 4

Specifications

Model

HTM-20N-A

HTM-20NH-A

HTM-20N-B

HTM-20NH-B

HTM-20N-C

Mounting Screw Screw, Flange

Max. Temperature 80℃ 150℃ 80℃ 150℃ 60℃

Max. Process Pressure

10kg/㎠ 2kg/㎠

Power Source AC 90V~240V, 50/60Hz / DC +24V

Output Signal DPDT

Enclosure Weather-Proof, IP65

Wetted Part Material SCS 14 SUS 304+SCS 14, SUS 316L+SCS 14

Process Connection PT 1-1/2”(M) PT 1-1/2”(M) (Std.), 2” Flange

Housing ; Cable Entry PBT (Opt. AL.C) ; 2-PF 1/2”(F) (Std.)

Installation Side or Top Top

Contact Rating AC 250V, 5A / DC 30V, 5A

Module M-20N

Microprocessor 16Bit Microprocessor

Power Consumption

AC Stand-by

AC110 @ 4.8W / AC220V @ 9W

Active AC110 @ 5.6W / AC220V @ 9.8W

DC Stand-by

DC+24V @ 1.5W

Active DC+24V @ 2.3W

Oscillation Frequency 85Hz @ ±5Hz

Sensitivity Resolution 0.1V

Function (Adjustment)

 Sensitivity

 Relay Delay

 Relay Return Time

 Relay Contact Control (Normal/Reverse)

 Monitoring

Status Indicator Tri-Color LED [Green / Red / Orange]

Detection Indicator Red LED

Relay Control Indicator Green LED

Dimension 80mm x 65mm x 58mm

Ambient Temperature -20℃ ~ 80℃

Product Spec.

Electrical Spec.

HTM-20N Series

HITROL CO., LTD. 5

Actual product may have a tolerance slightly.

Dimensions Weather-proof Version (PBT)

HTM-20N-A HTM-20N-B HTM-20N-C

HTM-20N-B HTM-20N-C

HTM-20N Series

HITROL CO., LTD. 6

Actual product may have a tolerance slightly.

Weather-proof Version (AL.C)

HTM-20NH-A HTM-20NH-B

HTM-20N-C

HTM-20NH-B

HTM-20N-C

HTM-20N Series

HITROL CO., LTD. 7

The HTM-20N 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, considering the following:

Side Installation (Horizontal Installation)

■ A-Type or B-Type can be installed on the side of a tank. A screw-socket shape under 24mm

shall be used for installing the A-Type on the side. Otherwise, dust or foreign matter may enter,

resulting in a malfunction. The extended B-Type supports the screw and the flange.

■ When side installation, it shall be installed slopingly (more than 15°) with a direction of

wider side of tuning fork vertically to avoid build-up of the medium on the tuning fork.

(Refer to Fig. 1)

■ Sensor shall be installed at the place far from inlet of the tank and protector shall be installed

in order to protect the sensor from damage by falling medium if it is installed at the inlet. The

protector shall have sufficient area to protect the sensor from incoming medium and be

installed at a distance that does not affect sensor operation. (Refer to Fig. 1)

■ Cable lead-in inlet shall be installed facing the ground as shown in the figure. (Refer to Fig. 1)

■ Sun cover shall be installed to protect the housing from the damage by direct sunlight. (Refer to Fig. 1)

Top Installation (Vertical Installation)

■ Both B-Type and the C-Type can be installed

with the socket or flange on top.

■ Sensor shall be installed at the place far

from inlet of the tank.

■ Sun cover shall be installed to protect the

housing from the damage by direct

sunlight. (Refer to Fig. 1.)

When installing the product, install it using a tool that fits the hexagon connector of

the screw.

Max. Length shall be 500mm or less for the side installation.

For the side installation, an arrow on the connection shall be located on the top.

Attachment

& Precautions

<Fig. 1>

Sun Shade

Protector

HTM-20N Series

HITROL CO., LTD. 8

Technical

Data

Bulk Density Particle Density 0.2g/cm3 HTM-20N Series

Max. Mechanical Load 400N (1kgf=9.8N) HTM-20N-A / HTM-20N-B

(For stacking heavy subjects,

use a protection cover.)

Max. Tractive Force 500N HTM-20N-C

Max. Process Pressure Up to 10kg/㎠(150#) HTM-20N-A / HTM-20N-B 최대

Up to 2kg/㎠ HTM-20N-C

Relative Humidity Good for 0~100％

(Ratio between the vapors in the air

and that required for saturation at

the same temperature)

Ambient Temp. (Housing) -20 ~ +60 ℃ HTM-20N Series

Process Temperature MAX. 80 ℃ HTM-20N-A / HTM-20N-B

공정온도(Process temperat ure)

MAX. 150 ℃

HTM-20NH-A / HTM-20NH-B

공정온도(Process temperature)

MAX. 60 ℃ HTM-20N-C

ⓐ

ⓑⓒ

T amb.

T process

150℃ 80℃

T amb.

T process

60℃ ⓒ

ⓐⓑ

60℃

HTM-20N Series

HITROL CO., LTD. 9

Turn off the power of the product for maintenance.

Use

Maintenance

Failure Check

Precautions

for Removal

If there is a problem with operation, check the following first.

■ Is power voltage connected correctly?

■ Is power voltage supplied according to specifications correctly?

■ Is output contact wiring correctly?

The main inspection parts of the vibrating level switch are divided into the sensor and

transmission parts. The life span of the major components depends on user’s

environment and can be used in optimal condition through periodic checks. Therefore,

the user shall check and maintain at least once a year. Inspection of the appearance of

the product shall be visually checked to see if there is any damage, and the attachment

of the medium or foreign substances to the sensor will make it worse, so they shall be

removed regularly.

- Remove any sticky object from the device when cleaning the tank or silo.

- If the medium moves fast or the agitator works in the tank, perform regular

inspection to prevent mechanical damage to the sensor.

- It may cause sensor error and malfunction, so conduct a regular water-proof check.

- When measuring sticky material, check if such material grows. Remove them regularly

if any should appear. The sticky material may cause malfunction and damage to the

device.

■ Check the level and presence of liquid in the tank before removing it.

■ Overheated product may cause burn, so wear gloves to remove it.

■ It there is explosive gas in the atmosphere, do not open the cover.

■ Remove it with the power disconnected.

■ Make sure that any o-ring or gasket is not damaged while opening or closing the cover.

The level switch that prevents the vibration of the tuning fork is good for most of the

materials, but the following need to be taken in consideration.

■ Max. Ambient Temperature

■ Max. Pressure

■ Max. Particle Size

■ Vibration

HTM-20N Series

HITROL CO., LTD. 10

Please do not apply high impact to the product.

Make sure

to insert a washer if the terminal lug is removed from ground

terminal and then re- connected. (Loosening prevention)

Precautions

for Installation

Precautions

for Transportation

& Assembly

Precautions

for Lead-in

Method of

External Wiring

(Ex-proof)

Precautions

for Grounding

(Ex-proof)

■ Pay special attention to prevent any impact on the device during transportation or

assembly. The impact may directly lead to failure.

■ While transporting or assembling the product on a tank or silo, prevent any damage

to the assembly packing.

- The grounding has an external and an internal grounding. When connecting to an external

ground, the ground wire shall be 4㎟ (4mmSQ). (Internal Grounding is connected and

shipped by the manufacturer.)

External Grounding

4㎟ (4mmSQ)

Outside of Head (PBT) Outside of Head (AL.C)

■ Connect the flanges or bolts with the same specifications.

■ 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

the temperature of the content and the pressure inside the container.)

■ Install an ex-proof product in an ex-proof zone.

■ Do not bend or extend the sensor that vibrates.

■ Make sure to install the product and the cover before supplying the power.

When installing the product, use the tool to tighten it.

- Use the cable gland connection or metal pipe line lead-in on the wire inlet, and use a

product with equivalent Ex-proof certificate to connect it with the external line lead-in

method.

- For non-use external wire inlet, use a closed plug that passes safety certificate above

equivalent performance with the product.

Andere Handbücher für HTM-20N Series

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