HITROL HT-100R Series User manual

HT-100R Series
HITROL CO., LTD. 1
Doc. no.: HT100R_IM_Eng_Rev.4
Issue date: 2020. 08
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
FLOAT TYPE LEVEL TRANSMITTER
HT-100R Series

HT-100R Series
HITROL CO., LTD. 2
You should be careful where CAUTION is marked to carry
outthework.
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
outthework.
Table of Contents
Overview ······························3
Characteristics···························3
Operating Principles and Appearance ········3
Specifications ··························4
Float Application ························5
M-100R ·······························5
Section Distance ∙∙·····················6
Wiring ·······························6
Float Specifications ·····················7
Product Composition ····················8
Dimensions ··························9
Weather-proof Version ····················9
Ex-proof Version ··························10
Flap Type Level Gauge with HT-100R Series ····11
Maintenance ··························12
Precautions for Removal ·················13
Precautions for Installation···············13
Precautions for External Wiring ···········13
Precautions for Grounding ···············13
Installation ······························14
Safety and Environment ····················15
Marking ································15
User Training ····························16
Failure Modes and Actions ·· ·················16
When the output current is below 4 mA ·········16
When the output current is above 20 mA ·· ·······16
Output current holding phenomenon············17
Output hunting phenomenon··················17
Warranty and Contact ·····················17
APPENDIX
APPENDIX M ····HT-100R DISPLAY User Manual
APPENDIX L ·········M-100R User Manual
APPENDIX H ···Serial USB Terminal Install Guide

HT-100R Series
HITROL CO., LTD. 3
Overview
Characteristics
Operating
Principles and
Appearance
As the FLOAT made to fit the specific gravity of the measure object moves up and down
along with the liquid surface by buoyancy, the magnet installed in the FLOAT operates the
REED S/W in the GUIDE PIPE to change the resistance values connected to the REED S/W.
The changed resistance values are detected by the R/I CONVERTER inside the HOUSING to
continuously output current values (DC 4~20 mA) that fit the resistance values.
CABLE ENTRY
MAGNET
GUIDE PIPE
FLOAT
R/I CONVERTER (M-100R)
HOUSING
FLANGE
REED S/W, RESISTOR
STOPPER
HT-100R(-Ex) Series are FLOAT TYPE LEVEL TRANSMITTER that continuously measure water
levels in containers using buoyancy. These transmitters can be easily installed and adjusted
and can be used for chemicals because PVC and TEFLON are used on their detecting
elements. These transmitters are mainly used to measure clean water, industrial water, and
liquids in LPG tanks and chemical tanks.
■Widely used to measure various liquids (Resolution 10mm)
■Applicable to corrosive and acidic liquids with anti-corrosive material for the sensor (PVC, Teflon)
■Applicable to explosion area (Ex-proof Version)
■Local indication is available. (Display Type)
■Strong structure and high reliability
)

HT-100R Series
HITROL CO., LTD. 4
Specifications STAINLESS STEEL
Model
HT-100RS
HT-100RSH
HT-100RS-Ex
HT-100RSH-Ex
Mounting
Flange
Process Temperature
Max. 80℃
Max. 150℃
Max. 80℃
Max. 150℃
Process Pressure
Up to 20kg/cm2(300#)
Power Source
DC +24V
Output
DC 4~20mA(2~wire)
Enclosure
Weather-Proof (IP65)
Ex-Proof (Ex d IIC T6)
Ex-Proof (Ex d IIC T4)
Wetted Part Material
SUS304, SUS316L
Process Connection
100A JIS 10K
Housing
PC, AL.(Opt.)
AL.
Cable Entry
PF 3/4”(F), Adaptor (PF 1/2”, NPT 3/4”…)
Resolution & Accuracy
±10mm
PVC
Model
HT-100RV
HT-100RV-Ex
Mounting
Flange
Process Temperature
Max. 60℃
Process Pressure
Up to 0.5kg/cm2
Power Source
DC +24V
Output
DC 4~20mA(2~wire)
Enclosure
Weather-Proof (IP65)
Ex-Proof (Ex d IIC T6)
Wetted Part Material
PVC
Process Connection
100A JIS 10K FF
Housing
PC, AL.(Opt.)
AL.
Cable Entry
PF 3/4”(F), Adaptor (PF 1/2”, NPT 3/4”…)
Resolution & Accuracy
±10mm
TEFLON
Model
HT-100RT
HT-100RTH
HT-100RT-Ex
HT-100RTH-Ex
Mounting
Flange
Process Temperature
Max. 80℃
Max. 150℃
Max. 80℃
Max. 150℃
Process Pressure
Up to 0.5~3kg/cm2
Power Source
DC +24V
Output
DC 4~20mA(2~wire)
Enclosure
Weather-Proof (IP65)
Ex-Proof (Ex d IIC T6)
Ex-Proof (Ex d IIC T4)
Wetted Part Material
SUS304+TEFLON, SUS316L+TEFLON
Process Connection
100A JIS 10K
Housing
PC, AL.(Opt.)
AL.
Cable Entry
PF 3/4”(F), Adaptor (PF 1/2”, NPT 3/4”…)
Resolution & Accuracy
±10mm

HT-100R Series
HITROL CO., LTD. 5
Above application can be different according to the specific gravity and the specific medium
Float
Application
Note: ◎= Excellent ○= Good △= Acceptable X = Not good
M-100R
Float
Environment
Temperature
(℃)
Pressure
(㎏/㎠)
Acid
Alkaline
Oil
Solvent
Liquid gas
SUS 316L
-20 ~ +150
Up to 20
△
○
○
◎
△
PVC
-10 ~ +60
0.5
○
○
X
△
X
TEFLON
-20 ~ +150
0.5~3
◎
◎
X
○
△
NBR
-48 ~ +60
Up to 20
X
△
◎
△
○
TITANIUM
-20 ~ +150
Up to 10
X
△
◎
○
○
Item
Specifications
Microprocessor
16Bit Microprocessor
Current Loop Interface
2-Wire Loop Current
Supply Voltage
+17V ~ +40V @ Typ.+24V
Operating Voltage
+3.3V
Output Current Accuracy
3.8mA ~ 20.5mA @ ±0.2% F.S
Output Current Range
3.8mA ~ 20.5mA @ Alarm 3.6mA, 21mA [NAMUR NE43]
Output Current Offset
■Zero: 3.9 ~ 4.1mA
■Span: 19.9 ~ 20.1mA
±0.1mA @ 0.01mA Step
Output Current Definite
TP
Damping Time
0.5 sec @ Fixed
Self-Diagnosis
■Missing the float from sensor
■Disconnected Sensor Cable
■Lower than Zero Position
3.6mA Current Out
■Higher than Span Position
21mA Current Out
Simulation Current Out
■4mA @ 5 sec
■12mA @ 5 sec
■20mA @ 5 sec
Status Indicator
Bi-Color LED (Green/Red/Orange)
Zero / Span Set
Tact Switch
Wire Connection
One-Touch Connector
AWG 16 ~ 26
Ambient Temperature
-40℃~ +85℃
Dimension
80mm x 65mm x 20mm
Weight
54g

HT-100R Series
HITROL CO., LTD. 6
Section Distance
Wiring
Section
Distance(mm)
2"
3"
4"
A
50 (SUS, TEFLON)
100 (PVC)
100
100
B
250~5000(*)
C
50 (SUS)
70 (TEFLON)
100 (PVC)
100
100
A = Upper Dead Band; Minimum length which cannot be measured from the
bottom of flange
B = Measuring Range; It can be different according to the material.
C = Lower Dead Band; Minimum length which cannot be measured from the
end of guide pipe.
(*) = If the measuring length is below than 600mm, the accuracy can be lower
than described.
■+ -: DC 24V(DC 4~20mA Loop)
■T: Output Test Point
■H, C, L: Terminals between Sensor and M-100R
* Cable Color: H –Red, C –White, L –Black
■Make sure to connect the power with correct polarity (+, −).
■The power supply must be between +17 and +40V.
■Do not connect the wire with the power connected.
M-100R (R/I CONVERTER)

HT-100R Series
HITROL CO., LTD. 7
Float Application
Table
Product
Size
Dimensions (mm)
Guide
Tube
Material
S.G Range
D
H
A
HT-100RS
2"
Ф49
50
Ф15.5
Ф12.7
316L
0.7~1.0
Ф50
45
Ф20
Ф15.8
NBR
0.6~0.9
Ф45
52
Ф15
Ф12.7
316L
0.7~1.1
3"
Ф73
105
Ф23.5
Ф21.7
316L
1.0~1.5
Ф73
108
Ф23
Ф21.7
Titanium
0.6~0.9
Ф65
90
Ф25
Ф21.7
316L
0.9~1.5
4"
Ф95
119
Ф30
Ф25.4
316L
0.8~1.3
Ф95
103
Ф23
Ф21.7
Titanium
0.6~0.8
Ф95
118
Ф23
Ф21.7
Titanium
0.5~0.6
Ф80
80
Ф28
Ф25.4
NBR
0.5~0.7
Product
Size
Dimensions (mm)
Guide
Tube
Material
S.G Range
D
H
A
HT-100RV
2"
Ф49
105
Ф20
Ф18
PVC
1.2~1.7
3"
Ф76
110
Ф31.5
Ф26
1.0~1.6
4"
Product
Size
Dimensions (mm)
Guide
Tube
Material
S.G Range
D
H
A
HT-100RT
2"
Ф45
50
Ф17
Ф15
TEFLON
0.9~1.6
1.1~1.7
3”&4”
Ф69
96
Ф23.5
Ф21
0.8~1.3
0.9~1.5
4"
Ф85
100
Ф33
Ф28
1.1~1.7
(*)S.G: Specific Gravity

HT-100R Series
HITROL CO., LTD. 8
Product Composition
* PVC Type’s workable temperature is Max 60℃
Stainless Steel
Stainless Steel
(Guide type)
PVC
TEFLON
* Polycarbonate Housing
MAX 80℃
Aluminum Housing
MAX 80℃
Aluminum Housing
MAX 150℃
Aluminum Housing
MAX 80℃
Aluminum Housing
MAX 150℃
Flange
304, 316L
Stopper
316L
Guide Tube
304, 316L
Float
316L
Protection Tube
304, 316L
Guide Tube
304+PVC
Guide Tube
304, 316L
W/TEFLON
Stopper
PVC
Stopper
TEFLON
Flange
PVC
Flange
304, 316L,
W/TEFLON
Flange
304, 316L
Float
316L
Float
PVC
Float
TEFLON
Stopper
316L
Stainless Steel
(Without float)
Guide Tube
304, 316L

HT-100R Series
HITROL CO., LTD. 9
Dimensions
HT-100RT
HT-100RS
HT-100RV
HT-100RSH
HT-100RTH
<WEATHER-PROOF Version>

HT-100R Series
HITROL CO., LTD. 10
<Ex-PROOF Version>
HT-100RS-Ex
HT-100RV-Ex
HT-100RT-Ex
HT-100RSH-Ex
HT-100RTH-Ex

HT-100R Series
HITROL CO., LTD. 11
FLAP TYPE LEVEL GAUGE with HT-100R Series
HT-100R+HLG-100F
HT-100RH+HLG-100F
HT-100R
HT-100R-Ex
HT-100R-Ex+HLG-100F
HT-100RH-Ex+HLG-100F

HT-100R Series
HITROL CO., LTD. 12
Maintenance
The major parts of the HT-100R(-Ex) Series level transmitters to be inspected are divided into the
sensor element and the transmission element. The sensor element consists of Reed Switch,
Resistors, and the Float, and the transmission element is the M-100R(R/I CONVERTER). The life
spans of major parts vary with user environments and can be used in optimum conditions
through periodic inspections. Therefore, the user should maintain and repair the product through
periodic inspections conducted at least once a year. The appearance of the product should be
visually checked to see if there is any damage, and if there is scale caused by measure objects, it
should be removed for the smooth operation of the float. The M-100R can simply be inspected
using a Digital Multimeter as follows.
■Sensor Element Inspection
Separate the sensor lines connected to the M-100R’s terminals L, C, and H, and measure the resistance value
from the sensors.
Low and Com: resistance value of the current level
High and Com: entire levels’resistance value –current level’s resistance value
High and Low: entire levels’resistance value
■Transmission Element Inspection
Without the disconnection of cable, current output can be checked using the Digital Multimeter between the
M-100R terminal ports T and –.
(refer to connection) in series and check if the current value that corresponds to the level is outputted.
Power Supply
Indicator
M-100R
Digital Multimeter
After checking the sensor parts, the wrong connection of H, C, and L is the cause of the product failure.
Sensor
Test Point

HT-100R Series
HITROL CO., LTD. 13
Please do not apply high impact to the product.
- The grounding has an external and an internal grounding. When connecting to an external ground,
the ground wire shall be 4㎟(4mmSQ).
- The internal grounding wire shall be the same size as the power line, and the size of the
internal grounding terminal lug shall be 3.1㎟(3.1mmSQ). If the power line is larger than
3.1㎟, connect the ground wire without terminal lug.
Make sure to insert a washer if the terminal lug is removed from ground
terminal and then re- connected. (Loosening prevention)
Precautions for
Removal
Precautions for
Installation
Precautions for
External Wiring
(Ex-proof)
Precautions for
Grounding
(Ex-proof)
- Check the level and presence of measurements in the tank before removing it.
- Wear gloves when removing it, to prevent a burn.
- Disassemble work shall be done with the power off.
- If there is explosive gas atmosphere, do not open the cover.
- Unlock the lock key (Set screw) before removing the cover. (Ex-proof)
- Make sure that any O-ring or gasket is not damaged while opening or closing the cover of
product.
- Use the same standard flange or screw.
- Make sure to insert washers between bolts and nuts to prevent loosening.
- When you attach the product to a hopper, make sure that it is as bonded as possible by means of tools.
- Make sure to insert gaskets between flanges. (Select the gaskets in consideration of
temperature of content and pressure of vessel.)
- Install an Ex-proof product only in an Ex-proof zone.
- After the installation is complete and the cover of the product is assembled, power it on.
- 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.

HT-100R Series
HITROL CO., LTD. 14
Installation
Inner diameter “d” of tank nozzle shall be
larger than the outer diameter of float as per
above figure.
The product may malfunction if the product has
been installed at the inlet through which the
measure object flows in. Therefore, a guide
should be installed in such case or the product
should be installed at a position distant from the
inlet for measure objects.
Protection tube shall be applied if there
is a flow or slopping of the medium in
the tank.
Below recommendation shall be considered when installation.
When installing the product on a concrete
wall, you may want to install it as shown in
the figure above.

HT-100R Series
HITROL CO., LTD. 15
Safety and
Environment
Marking
■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)
- Internal ground (inside product housing) and external ground shall be connected.
- 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 discard the metal and non-metallic materials. No part
(ex. Mercury switch) has influence on the environment, so no special attention is required.
■Product Identification
- The product identification mark is attached onto the housing and 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.
<Weather-proof>
<Ex-proof>

HT-100R Series
HITROL CO., LTD. 16
Do not apply the Non Ex-proof product in an Ex-proof zone.
The Ex-proof product can be used where the environment and liquid inside the containers
are of zone 1 and 2
User Training
Failure Mode
and Actions
Cause
Checked
Calibration error
Recalibrate
The DC24V power supply line has not been connected.
Check the power supply line and
reconnect
The FLOAT Stopper below the sensor has been loosened.
Reassemble or replace the Stopper
The sensor FLOAT lost buoyancy or has been damaged.
Replace FLOAT
The HIGH cable of the sensor has been opened.
Reconnect
The M-100R inter element has been damaged.
Replace the M-100R
When the resistor of the sensor has been burnt and
opened and the FLOAT is located below the resistor.
Replace the sensor Module
Cause
Checked
Calibration error
Recalibrate
The Float Stopper above the sensor has been loosened.
Reassemble or replace the Stopper
The LOW cable of the sensor has been opened.
Reconnect
When the resistor of the sensor has been burnt and
opened, and the float is located above the resistor.
Replace the sensor PCB
TheM-100R inter-element has been damaged.
Replace the M-100R
The above matters should be fully understood, and the temperature of fluids in the
container where the product is used shall not exceed 80℃in the case of general
types and 150℃in the case of high-temperature types. In addition, make sure that
the ambient temperature of housing is kept at -20℃~ +60℃. (However, product with
PVC sensor part, the fluid temperature of the container is limited to 60℃.)
An Ex-proof product is a pressure-resistant and Ex-proof type, so never open the cover during
operation. Ex-proof products are designed according to Article 34 of the Industrial Safety
and Health Act and Article 58.4 of the Enforcement Rules of the same Act.
When the output current is below 4mA
이상일 경우
When the output current is above 20mA

HT-100R Series
HITROL CO., LTD. 17
Cause
Checked
When the buoyancy has been lost because of
impurities between the FLOAT of the sensor and the
pipe
Clean the pipe and the FLOAT
When the sensor resistor has been burnt intensively
and massively, thereby causing short circuit, and the
FLOAT is located in that position
Replace the sensor PCB (The
output drastically rises or
drops when the FLOAT goes
out of the position.
Measurement errors occur.)
When the sensor resistor has been burnt intensively
and massively and opened, and the FLOAT is located in
that position
Replace the sensor PCB (The
output drastically rises or drops
when the FLOAT goes out of the
position. Measurement errors
occur.)
Cause
Checked
In the process for the inter-element (diode) of the M-
100R to be damaged, temporary over-measurement
(approximately 10%) caused by over current and noise
outputs are formed.
Replace the M-100R
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)
Output current holding phenomenon
Output hunting phenomenon

HT-100R DISPLAY
User Manual
Float Type Level Transmitter
Doc. no.: Rev0.0
Issue date: 2020.07.30
APPENDIX M

1. HT-100R Display Module Configuration & Function
No.
Configuration
Function
1
S Key
■Function setting
■Save the setting
2
M Key
■Mode change
■Cancellation
3
▲Key
■Span Set
■Setting the value left & up
4
▼Key
■Zero Set
■Setting the value right & down
5
LCD
■Display of operating and setting status
6
LED
■Display of power and status
7
UART
■Communication port of HT-100R setup and operation
status
8
PWR
■For supply power and current output
■Check for output current
9
SENSOR
■Connection with the sensor of HT-100R

2. Specifications
Items
Specifications
Model
M-100RD (Compact), M-RIU (Local)
Microprocessor
16Bit Microprocessor
Current Loop Interface
2-Wire Loop Current
Supply Voltage
DC+17V ~ +40V @ Typ.+24V
Output Current Accuracy
4.0mA ~ 20.0mA @ ±0.2% F.S
Resolution
±10mm @ With Sensor
Output Current Range
■3.8mA ~ 20.5mA @ Alarm 3.6mA, 21mA [NAMUR NE43]
■4.0mA ~ 20.0mA @ NAMUR NE43 Holding
Output Current Offset
■Zero: 3.9 ~ 4.1mA
±0.1mA @ 0.01mA Step
■Span: 19.9 ~ 20.1mA
Measurement Sensor Range
■Min. : 200Ω[100mm]
■Max. : 12KΩ[6M) @ 20ΩSensor
Output Current Definite
TP
Damping Time
■Default 0.5 sec
■Range: 0 sec ~ 10 sec @ 0.5 sec Step ADJ.
Self-Diagnosis
■Missing the float from sensor
3.6mA current out
■Disconnected Sensor Cable
■Lower than Zero Position
3.6mA current output
[NAMUR NE43]
■Higher than Span Position
21mA current output
[NAMUR NE43]
Simulation Current Out
■4mA @ 5 sec
■12mA @ 5 sec
■20mA @ 5 sec
Status Indicator
Bi-Color LED [Green / Red / Orange]
Setting Menu
Quick Menu / Set Menu / UART
Display
mA, %, m, ft, Level, Distance
Ambient Temperature
-20℃~ +60℃
[Table 1] Specifications