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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/cm

2

 

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 

 

Summary of Contents for HLC-901 Series

Page 1: ...ev 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 00 82 31 950 9700 FAX 00 82 31 943 5600 www hitrol com INSTRUCTION MANUAL VIBRATION TYPE LEVEL SWITCH HTM 930 HLC 901 Series ...

Page 2: ...g 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 ...

Page 3: ...gnificantly 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 Specif...

Page 4: ...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 ...

Page 5: ...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 ...

Page 6: ...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 ...

Page 7: ...t 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 c...

Page 8: ...cked 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 dispos...

Page 9: ...8 Palhakgol gil road Jori eup Paju si Gyeonggi do Korea TEL 82 31 950 9700 Head Office and A S FAX 82 31 950 9796 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 vibr...

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