HITROL HT-100F Series User manual

HITROL CO., LTD.

HEAD OFFICE. FACTORY.

R&D INSTITUTE

HITROL CO., LTD.,

141, Palhakgol

Paju-si, Gyeonggi-do, Korea

TEL.: (00)-82-31-950-9700

FAX: (00)-82-31-943-5600

www.hitrol.com

HITROL CO., LTD.

R&D INSTITUTE

141, Palhakgol

-gil, Jori-eup,

INSTRUCTION

FLOAT

TYPE LEVEL TRANSMITTER

Doc. N

o.: HT100F_

HT-100F Series

HITROL CO., LTD.

INSTRUCTION

MANUAL

TYPE LEVEL TRANSMITTER

-100F Series

-100FI Series

o.: HT100F_

IM_Eng_Rev.3.1

Date Issued: 2023.09

HT-100F Series

HITROL CO., LTD. 2

You should be careful where CAUTION is

marked to carry out the work.

You should be aware of where NOTICE is

marked to carry out the work.

You should be well-informed of the contents

where WARNING is marked before carrying

out the work.

Table of Contents

Overview and Features · · · · · · · · · · · · · · · · · · · 3

Mechanism and Components · · · · · · · · · · · · · · · 3

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

Specifications of the M-100R · · · · · · · · · · · · · · · 4

Float Application Table· · · · · · · · · · · · · · · · · · · · · 5

Components · · · · · · · · · · · · · · · · · · · · · · · · · · · 5

Dimensions · · · · · · · · · · · · · · · · · · · · · · · · · · · · 6

Wiring · · · · · · · · · · · · · · · · · · · · · · · · · 6

Zero/Span Adjustment · · · · · · · · · · · · · · · · · · · · · 7

Maintenance · · · · · · · · · · · · · · · · · · · · · · · · · · · 8

Attachment and Cautions· · · · · · · · · · · · · · · · · · · 9

Cautions for Removal · · · · · · · · · · · · · · · · · · · · 10

Cautions for Installation · · · · · · · · · · · · · · · · 10

Cautions for the Inserted External Wire · · · · · · 10

Safety and Environment · · · · · · · · · · · · · · · · 10

Marking · · · · · · · · · · · · · · · · · · · · · · · · · · 10

Failure Mode & Actions · · · · · · · · · · · · · · · · · 11

When the output current is below 4mA · · · · · · · · · 11

When the output current is above 20mA · · · · · · · · 11

Output Current Holding Phenomenon · · · · · · · · · · 11

Output Hunting Phenomenon · · · · · · · · · · · · · · · 11

Warranty and Contact · · · · · · · · · · · · · · · · · 11

HT-100F Series

HITROL CO., LTD. 3

Overview and

and Features

Mechanism and

Components

■ Wire type for easy installation

■ Local indication (indicator)

■ Easy maintenance

The HT-100F Series is a float-type level transmitter for continuously measuring

the liquid level in a container with buoyancy. It is mainly used to measure liquid for

purification, industrial water, sewage treatment plants, wastewater, and fuel tanks.

When the float, which is fabricated according to the specific gravity of the target to be

measured, moves up and down along the liquid surface with buoyancy, the wire

connected to the float is wound around the wire drum by the constant spring.

The rotation of the wire drum is transferred to the gear and, thus, triggers the indicator

pointer.

The magnet in the indicator pointer triggers the reed switch to change the resistance

value.

The changed resistance value is detected by the R/I converter(M-100R) in the housing

and corresponding current value (DC 4-20mA) is continuously output. The HT-100FI has

the local indicator pointer so that it can be checked on site.

(M-100R)

HT-100F Series

HITROL CO., LTD. 4

Specifications

Model HT-100F HT-100FI

Mounting Top, Flange

Indicator None 1-point dial

Ambient Temperature −20°C ~ +60°C

Process Temperature Max. 80°C

Process Pressure ATM

Range (m) Max. 7.5m

Power Source DC 24V None (Std.) / DC 24V (Opt.)

Output

DC 4~20mA (2-wire)

Display (Std.) /

DC 4~20mA (2-wire) (Opt.)

Enclosure Weather-proof (IP54)

Wetted Parts Material 316L SS

Process Connection 100A JIS 10K FF (Std.)

Cable Entry PF 1/2"(F)

Accuracy ±2% of F.S.

Specifications of the M-100R

Item Specification

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

Frame Ground FG

Damping Time 0.5 sec @ Fixed

Self-Diagnosis

■ Lower than Zero Level

■ Float deviation

■ Sensor Cable not wired

3.6mA Output

■ Higher than Span Level 21mA Output

Simulation Current Out

■ 4mA @ 5 sec.

■ 12mA @ 5 sec.

■ 20mA @ 5 sec.

Status Indicator Tri-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-100F Series

HITROL CO., LTD. 5

Float Application Table

Float Size

Spring Length

MEAS. Range

S.G

Range

Outer

Diameter

Length Min

89.1 200

5 m / ~3.5 m 0.7

7.5 m / ~6 m 0.7

10 m / ~7.5 m

0.8

76.3 250

5 m / ~3.5 m 0.7

7.5 m / ~6 m 0.7

10 m / ~7.5 m

0.8

Components

Aluminum Housing Aluminum Housing

(Indicator Type)

Flange

CS, 304, 316L

Float

304, 316L

Protection Tube

304, 316L

Flange

CS, 304, 316L

Outside

Wetted Parts

Material

Float

304, 316L

Vent Hole

Dimensions

<HT-100F>

Wiring

HITROL CO., LTD.

<HT-100FI>

M-100R (R/I CONVERTER)

■ + -: DC 24V(DC 4~20mA Loop)

■ FG: Frame Ground

■ H, C, L: Terminals between Sensor and

* Cable Color: H – Red, C – White, L – Black

■

Make sure to connect the power with correct polarity (+,

■ The power supply must be between

■

Do not connect the wire with the power connected.

HT-100F Series

HITROL CO., LTD.

<HT-100FI Guide Type>

M-100R

Make sure to connect the power with correct polarity (+,

−).

+17 and +40V.

Do not connect the wire with the power connected.

Zero/Span

Adjustment

Green LED is turned on

when the power is connected

and wiring properly.

Step 1

▷ Steps

2 and 3 can be

▷ For the

zero

▷ For the

span

Caution: Incorrect

and then off.

■ Offset

Adjust the error of

Step 1

Press the +

buttons for

to turn on the red LED.

▷

Offset adjustment is available regardless of float position.

■

Simulation Current Out

When the check of correct output (4~20mA) between M

▷4mA◁

Press +

buttons at once for

about 1 sec. then 4mA will be out

for 5 sec.

▷

After 5 seconds, it will be returned to actual float sensing mode.

▷ It can be tested regardless of the wiring of the sensor.

HITROL CO., LTD.

Step 2 Step 3

2 and 3 can be

interchanged.

zero

(0%) setting, proceed with Step 1  Step 2 

span

(100%) setting, proceed with Step 1  Step

Caution: Incorrect

setting may lead to an incorrect

range setting with

Adjust the error of

measuring device or fine tuning of level.

Step 2

buttons for

With the button pressed, press the

/ button for fine tuning.

▷Span◁

▷Zero◁

Offset adjustment is available regardless of float position.

Press the button

with the float at

0% position.

Press the button

with the float at

100% position.

With the button pressed, press the

/ button for fine tuning.

Simulation Current Out

When the check of correct output (4~20mA) between M

100R and PLC required, test it as

▷12mA◁

▷

buttons at once for

about 1 sec. then 4mA will be out

After 5 seconds, it will be returned to actual float sensing mode.

It can be tested regardless of the wiring of the sensor.

Press + buttons at once for

about 1 sec. then 4mA will be out

for 5 sec.

Press + buttons at once for

about 1 sec. then 4mA will be out

for 5 sec.

HT-100F Series

HITROL CO., LTD.

Step 4

Press and hold the button for 1s

to finish zero/span setting with

the green LED on and then off.

Step 4.

 Step 4.

range setting with

the orange LED on

Step 3

Press the + buttons for 1s

to finish the offset with

the green LED on and then off.

100R and PLC required, test it as

below.

▷

20mA◁

After 5 seconds, it will be returned to actual float sensing mode.

Press + buttons at once for

about 1 sec. then 4mA will be out

for 5 sec.

Maintenance

The HT-

100F Series level transmitter requires

sections.

The sensor section has REED S/W; the drive section has

and spur gear; and the transmission section has

The service life of parts depends on the operation

required to keep the optimum operation conditions.

inspection and maintenance at least every

M-100R

can be checked using a

Disconnect the sensor wire from the H, C, and

ure the resistance value of the sensor.

Low and Com

High and Com

High and Low

1. Remove the front cover to see the gear operation.

2. Remove the rear cover to check the wire and measuring tape for any damage.

Indicator

Power Supply

HITROL CO., LTD.

100F Series level transmitter requires

inspection for the sensor, drive, and

The sensor section has REED S/W; the drive section has

and spur gear; and the transmission section has

the M-100R.

The service life of parts depends on the operation conditions, and regular inspection

required to keep the optimum operation conditions.

Thus, users are advised to

inspection and maintenance at least every

year.

Exterior damages will

can be checked using a

digital multimeter.

Disconnect the sensor wire from the H, C, and L terminals of the

ure the resistance value of the sensor.

Low and Com

Resistance value of the current level

High and Com

Resistance value of the full level –

Resistance value of the

High and Low

Resistance value of the full level

1. Remove the front cover to see the gear operation.

2. Remove the rear cover to check the wire and measuring tape for any damage.

Indicator

M-100R

Power Supply

After checking the sensor parts, the wrong connection of H

the product failure.

Sensor

HT-100F Series

HITROL CO., LTD.

inspection for the sensor, drive, and

transmission

The sensor section has REED S/W; the drive section has

the wire drum, spring drum,

conditions, and regular inspection

Thus, users are advised to

conduct regular

Exterior damages will

be visually checked. The

L terminals of the

M-100R, and meas

Resistance value of the

current level

2. Remove the rear cover to check the wire and measuring tape for any damage.

Digital Multimeter

After checking the sensor parts, the wrong connection of H

, C, and L is the cause of

HT-100F Series

HITROL CO., LTD. 9

Attachment and

Cautions

If it is installed on the inlet, install a guide,

or make it distanced from the inlet to

prevent malfunction.

When there is flow or sloshing in the measured

object or there is agitator around the sensor, the

protective tube type must be used.

Install it on the concrete wall as shown above. “d” diameter requires a larger diameter than

float and straight piping.

HT-100F Series

HITROL CO., LTD. 10

Removal

Cautions

Cautions for

Installation

Cautions

for the Inserted

External Wire

Safety and

Environment

Marking

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

■ Disconnect the power first.

■ Connect flanges with same dimensions.

■ Make sure to insert washers between bolts and nuts to prevent loosening.

■ Make sure to insert gaskets between flanges.

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

■ Do not use it for any corrosive gas.

■ Use the cable gland connection or metal pipe wiring for the inlet of wires.

Make sure it is not subject to any impact when moving it.

■ Cautions

- Make sure to connect the product and container using the required tools.

- Do not apply large impact to the product.

■ Disposal

- To dispose a waste product, separate the AMP and body first. It does not contain

any part that is harmful to the environment (e.g., mercury switch).

■ 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.

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