HITROL HT-100CT Series User manual

HT(HPC)-100CT 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. : [phone]
FAX. : [phone]
www.hitrol.com
INSTRUCTION MANUAL
CAPACITANCE TYPE LEVEL TRANSMITTER
HT-100CT Series
HPC-100CT Series
Doc. no. : HT(HPC)-100CT_IM_Eng_Rev. 6
Issued date : 2022. 05

HT(HPC)-100CT 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
Introduction · · · · · · · · · · · · · · · · · · · · · · · · · · · 3
Characteristics · · · · · · · · · · · · · · · · · · · · · · · · · · 3
Operational Principle · · · · · · · · · · · · · · · · · · · · · 3
Specifications · · · · · · · · · · · · · · · · · · · · · · · · · · 4
Product Composition and Technical Data · · · · · 5
Installation and Precautions · · · · · · · · · · · · · · · · 7
Wire Connection and AMP Composition · · · · · 10
Adjustment Method · · · · · · · · · · · · · · · · · · · · 10
Failure Check and Repair/Maintenance· · · · · · · 11
Precautions in Removal · · · · · · · · · · · · · · · · · · 11
Precautions in Use · · · · · · · · · · · · · · · · · · · · · · · · · · · 12
Precautions for Inserted External Wire (Ex-proof) · · · · 12
Precautions in Grounding (Ex-proof) · · · · · · · · · · · · · · 12
Safety and Environment · · · · · · · · · · · · · · · · · · · · · · · · 13
Marking · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 13
User Training · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 14
Warranty and Contact · · · · · · · · · · · · · · · · · · · · · · · · 14

HT(HPC)-100CT Series
HITROL CO., LTD. 3
Introduction
Characteristics
Operation
Principle
■ Excellent degree of precision
■ Semipermanent solid structure with no mechanical driving part
■ Various probe forms according to the purpose of use
■ Effortless installation of wire forms (HT-100CTW-2); easily used for corrosive liquid (solution)
■ Interface between water and oil can be measured.
■ Explosionproof enclosure available (Ex d IIC T6/T4); (HPC-100CT-2 Series)
The HT(HPC)-100CT-2 Series is a water level transmitter that continuously measures the
change of tank level using the permittivity of the liquid. It can be easily installed and
calibrated and can simply be used even for corrosive liquid. The HT(HPC)-100CT-2 Series
is generally used to measure the liquid in various areas such as pure water, industrial
water, oil tanks, and chemical tanks.
When the level between the electrode probe and electrode wall increases, the air around the
electrode probe is replaced by other dielectric substances (measured object), and the value of
the electrostatic capacity changes according to the level. The electrode probe has the initial
low value of electrostatic capacity when it is in the air, but the value of the electrostatic
capacity increases if the measured object increases and covers the electrode probe. If there
are two insulated conductors, the electrostatic capacity is decided by the size of the two
conductors, relative location, and the permittivity of the medium (contents) existing in the
two conductors. The following formula shows the change of the electrostatic capacity (ΔC)
when a substance with ε₂ permittivity is filled to l level if the air permittivity is ε₁ between
the two conductors on a concentric circle.
ΔC =
Here,
log D/d
10
(
ε₂ ε₁
X l
- )
is constant as initial conditions. Thus, if you regard it as Constant K, ΔC is decided only by l,
the height of the substance you want to measure. Therefore, if you measure ΔC,
you can identify the current position of Level.
log D/d
10
(ε₂ ε₁X l
- )
[pF]

HT(HPC)-100CT Series
HITROL CO., LTD. 4
Specifications
Weather-Proof Version
Model HT-100CT HT-100CTH HT-100CTW HT-100CTWH
Probe Type Rod Wire
Mounting Screw & Flange
Ambient Temperature -20°C ~ +60°C
Process Temperature -40°C~+80℃ -40°C~+150℃ -40°C~+80℃ -40°C~+150℃
Process Pressure Vacuum~ 20kg/cm2(300#)
Combination Unit HLC-100C-P
Signal Transmission ANALOGUE 3-WIRE
Enclosure Weather-Proof (IP66)
Wetted Parts Material SUS 304, 316L with TEFLON
Process Connection PT 1”(M) Screw 50A JIS 10K RF FLANGE
Housing ; Cable Entry PBT;PF1/2”(F),IP65 AL.; PF 1/2''(F),
IP66
PBT;PF1/2”(F),IP65 AL.; PF 1/2”(F),
IP66
AL;PF1/2”(F),IP66 AL;PF1/2”(F),IP66
Accuracy Up to ±1% of F.S
Ex-Proof Version
Model HPC-100CT HPC-100CTH HPC-100CTW HPC-100CTWH
Probe Type Rod Wire
Mounting Screw & Flange
Ambient Temperature -20°C ~ +60°C
Process Temperature -40°C~+80℃ -40°C~+150℃ -40°C~+80℃ -40°C~+150℃
Process Pressure Vacuum~ 20kg/cm2(300#)
Combination Unit HLC-100C-P
Signal Transmission ANALOGUE 3-WIRE
Enclosure Ex-Proof (Ex d IIC T6, IP65) Ex-Proof (Ex d IIC T4, IP65) Ex-Proof (Ex d IIC T6, IP65) Ex-Proof (Ex d IIC T4, IP65)
Wetted Parts Material SUS 304, 316L with TEFLON
Process Connection PT 1”(M) Screw 50A JIS 10K RF FLANGE
Housing ; Cable Entry AL. ; PF 3/4”(F)
Accuracy Up to ±1% of F.S

HT(HPC)-100CT Series
HITROL CO., LTD. 5
Product Composition and Technical Data
The dimensions on the following pages are indicated in mm
Probe
material:
304,316L
with
TEFLON
Rod Probe
Material :
PBT
(Aluminum)
Rod Probe
with Ground rod
Rod Probe
with Ground tube
Wire Probe
Wire Probe
with Ground Wire
Wire material :
316L with
TEFLON
Connection Type
-Screw : PT 1”(Std.), NPT 1”, PF 1”, Other
-Flanges : ANSI, JIS, DIN
-Tri-Clamp
Material
-304, 316L, Other
Ground tube
material :
304,316L
Ground rod
material :
304,316L
with
TEFLON
Weight
material :
304,316L, TEFLON
[Housing ]
[Connection]
[Probe]
High Temp. Version
High Temp. Version
Material :
Aluminum
Weight
material :
,TEFLON
Weight
material :
SS

HT(HPC)-100CT Series
HITROL CO., LTD. 6
Dielectric Constant Value
Fuel Oil : Gasoline,Diesel… 2
Hydrogen chloride 4.6~12
Hexane, Liquid 6
Butanol 17~18
Ammonia 16~25
Alcohol 16~31
Acetone 20
Caustic soda 22~26
Ethanol 25
Methano 32~33
Glycerin 47~68
Water 81
Sulfuric acid 84
Information about the relative dielectric constant can be downloaded from our website
by accessing the Knowledge Base www.hitrol.com.
Rod Probe
Rod Probe
with Ground rod
Rod Probe
with
Ground
tube
Wire Probe
Wire Probe
With Ground
Wire
Total length(L)
100~3,000 100~3,000 100~3,000 1,000~15,000 1,000~15,000
Probe dia.
(including
TEFLON)
Ф15 Ф15 Ф15 Ф2.5 Ф4
Ground dia. - Ф10 Ф27.2 - Ф4
For acid
liquids O O - O O
For high-
viscosity
liquids
O O - - -
For non_
metal tanks - O O - O
For sphere
tanks - O O - O

HT(HPC)-100CT Series
HITROL CO., LTD. 7
Installation and
Precautions
The electrostatic capacity–type level gauge can be installed in screw (PT, NPT, PF) and flange
(ANSI, JIS, DIN) as well as tri-clamp and other various locations. Pay attention to the
following matters during installation;
■ Never install the probe in a place where the measured object flows in. (a)
■ If the fluidity exists in the contents of the wire probe, install the guide tube. (d)
■ Install the probe within max. 300 mm from the tank wall, (b) and if the installation distance
is far from the tank wall, install it in the ground tube type (e).
■ If the probe is long or its contents have fluidity, install a fixing bracket completely
insulated from the sensing probe at the lower part of the probe. (c)
■ If the tank material is nonconductive (ex. FRP), use the probe with the ground tube (e) (d),
and if the measured object is a corrosive chemical substance, use the probe with the
ground rod (f).
■ If the tank has a mixer, install the probe at a safe distance from the mixer.
■ If the tank wall has a structure (ex. angle), use the probe with the ground tube (e)

HT(HPC)-100CT Series
HITROL CO., LTD. 8
■ If the concrete tank or the installation place is a nonconductive structure, use the probe
with the ground tube. (g)
■ If the tank structure is a sphere tank type, use the probe with the ground tube. (h)
■ If the probe is installed at the tank side, install the chamber. (i)
■ The ground tube should have ventholes at proper places. (j)
(h)
(j) Vent holes
(i)
(g)

HT(HPC)-100CT Series
HITROL CO., LTD. 9
Conductive Tanks (Metal Tanks)
When installing the probe in a conductive tank, the transmitter housing and tank
should be grounded like in the figure below.
Nonconductive Tanks (Nonmetal tanks)
When installing the probe in a nonconductive tank, the ground tube (rod) or ground
wire should be used and grounded with a transmitter housing like in the figure below.

HT(HPC)-100CT Series
HITROL CO., LTD. 10
Wire Connection and AMP Composition
→ This product is a separation type.
해당 제품은 분리형이며, Refer to the left figure for the wire connection between the sensor
(HT(HPC)-100CT) and the control unit (HLC-100C-P).
└> The above figure shows the HLC-100C-P Terminal block.
1, 2, 3: AC power terminal
8, 9: DC 4–20 mA output terminal
14, 15, 16: Sensor connection terminal
Adjustment Method
ZERO Adjust
[1] Connect the DC 4–20 mA indicator.
[2] While watching the connected indicator, turn Zero Range ADJ.
(①) to the clockwise direction, and set it at near 0%.
[3] Set it at accurate 0% using Zero Fine ADJ. (②) for fine
adjustment.
SPAN Adjust
[1] While watching the indicator after completely filling the contents
in the container, turn ON/OFF the Full Range ADJ. (③) in the order of
6->5->4->3->2->1, and adjust it until the indicator points near
100%.
[2] Set it at accurate 0% using Full Range ADJ. (④) for fine
adjustment.
(Span adjustment range: 40–4,000pF)

HT(HPC)-100CT Series
HITROL CO., LTD. 11
If there is an atmosphere of explosive gas, do not open the cover of the product.
Make sure that it is not subject to any high impact while moving.
Failure Check
and
Repair/
Maintenance
Precautions
for
Removal
■ Product Test
The major checking part for the electrostatic capacity–type level transmitter includes the
sensor part and the transmission part.
The life span of the major parts varies according to user environment, and they can be
used in optimum condition through periodic checking. Therefore, the user should conduct
periodic checking at least once a year for repair and maintenance. Carry out a visual
inspection on the damage, etc., on the product, and periodically remove foreign substances
attached to the probe as these can degrade accuracy. When removing the foreign
substances, be careful not to damage the Teflon part.
■ Failure Check
The level of measured object changes, but the output does not change.
▶ Insufficient power supply
▶ Wrong adjustment of ZERO and SPAN
Only a slight change of output to the change of level of measured object
▶ Wrong adjustment of ZERO and SPAN
▶ Slight change of probe ΔC value
No change of level, but output fluctuation is present
▶ Wrong grounding
▶ Noise on the lines
▶ Extreme fluctuation of measuring device
▶ Bad insulation of probe
Output indicates Full (20 mA) of higher regardless of the change of level of the measured
object.
▶ Wrong adjustment of ZERO and SPAN
Never separate the cover in an environment exposed to explosive gas.
■ Check the level and presence of measure object in the tank before removing it.
■ Wear gloves when removing it, to prevent a burn.
■ Unlock the lock key before removing the cover. (Ex-proof)
■ Disassemble work shall be done with the power off.
■ Make sure that any O-ring or gasket is not damaged while opening or closing the
cover of product.

HT(HPC)-100CT Series
HITROL CO., LTD. 12
Precautions
for
Use
Precautions
for Inserted
External Wire
(Ex-proof)
Precautions
for Grounding
(Ex-proof)
■ 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.
■ 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 shall
be wiring to the same specification as the connected cable.)
Make sure to insert a washer if the terminal lug is removed from ground
terminal and then re- connected. (Loosening prevention)
■ Check whether the product would be installed in the Ex-proof zone, and use the
appropriate product.
■ Do not bend or extend the sensor randomly.
■ Make sure to install the product and the cover first before supplying the power.
■ Do not use if the temperature range of the installation exceeds -20℃ to +60 ℃.
■ Do not use if the protection grade requires a higher grade than its product. (IP66 for
AL. Housing or IP65 for PBT Housing)
■ Do not use where vibration is present.
External Grounding
4㎟ (4mmSQ)
HEAD External
Grounding
(WEATHER PROOF)
HEAD
External
Grounding
(EX PROOF)

HT(HPC)-100CT Series
HITROL CO., LTD. 13
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 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 product.
- Pay attention to prevent electric shock.
■ Disposal of Product
- Make sure to separate the amplifier and main unit from housing before disposing
the products.
- 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.
<Ex-proof Version>
< Weather-proof Version >

HT(HPC)-100CT Series
HITROL CO., LTD. 14
User
Training
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
ADDRESS: 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)
Under the aforementioned, the temperature of fluids in the tank where the product is used
shall not be exceed 80℃ for general type and 150℃ for high-temperature type. In addition,
make sure that the ambient temperature of housing is kept at -20 - +60℃. In the case of
an explosion-proof type product, never open the cover of the product during use. 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.
Do not apply a Non-ex-proof product in an Ex-proof zone. Ex-proof products can
only be installed at zone 1 and 2 of locations where explosive gas atmosphere
exists. It shall be installed in compliance with the ex-proof temperature rating
and the applied fluid temperature.