HT(HPC)-100CT-2 Series
HITROL CO., LTD. 3
Overview
Characteristics
Operating
Principle
■ Widely used to measure various liquid levels
■ Strong structure and semi-permanent life cycle due to move-less part
■ Various probe types for wide application
■ Easy installation of wire type. (HT-100CTW-2 Series)
■ Applicable to corrosive liquid
■ Interface measurement between water and oil is available
■ Applicable to explosive area (HPC-100CT-2 Series)
■ Have KC certificate and CE certificate
HT (HPC)-100CT-2 Series is a Capacitance Type Level Transmitter which continuously
measures liquid levels using of liquid’s dielectric constant. It can be easily installed and
adjusted, and can be easily applied to corrosive liquids and widely used in general
industries, chemical and oil plants.
When there are two conductors insulated each other, the value of capacitance formed
between two conductors is a function of the sizes of two conductors, relative location of two
conductors and the dielectric constant of material placed between two conductors. Under the
conduction that air of dielectric
ε₁
exists in the space between two concentric conductors,
lower part of space between two conductors is filled material of dielectric constant
ε₂
as
shown below, the change of capacitance is expressed as follows.
ΔC =
Since is a constant value as an initial condition, and get this value
as K,
ΔC
becomes a function of level of material only. Therefore, level can be obtained
through the measurement of
ΔC
.
log D/d
10
(
ε₂ - ε₁
X l
)
[pF]
10
log D/d
(
ε₂ - ε₁
)
: Dielectric constant of air
: Dielectric constant of medium (contents)
: Height of tank
: Level of medium (contents)
: Outer diameter of tank
: Outer diameter of sensing probe
ε₁
ε₂
L
I
D
d
Содержание HPC-100CT-2 Series
Страница 13: ...M 100CT2 User Manual Capacitance Type Level Transmitter Doc no Rev1 3 Issued Date 2021 07 15 APPENDIX V ...
Страница 15: ...2 Specification Table 1 Specification ...
Страница 16: ...3 Configuration of Setting Menu Table 2 Setting Menu List ...
Страница 17: ...4 Setting and Operating LCD Configuration Into the Setting Menu Return to Setting Mode ...
Страница 18: ... Select the Setting Menu Change the User Setting Table 3 Key Button Guidance ...
Страница 20: ... Zero Span Capacity fine Adjustment Zero Setting Span Setting Span Setting Other ...