UHC-Series - Dandong Top Electronics Instrument Co., Ltd.

UHC magnetic float liquid level indicator

UQC magnetic ball float liquid level indicator

Summary

UHC series magnetic float liquid level indicators and UQC series

magnetic ball float liquid level indicators are new designed generation

liquid level indicator according to magnetic coupling principle. They

present the level indication directly and clearly because of the

advanced technology and the proper structure and are suitable for

liquid level measurement in petroleum, chemical, power, light

industry and pharmaceutical industrial field, etc. UHC series magnetic

float liquid level indicators are mounted on side of vessels, while

UQC series magnetic ball float liquid level indicators are mounted on

the top of vessels especially for the measurement for the underground

storage tanks.

Main technical parameters

For local indication

Model

Contents UHC series magnetic float level

indicator

UQC series top-mounted magnetic

ball-float level indicator

Measuring range 0～6000mm

(>6000mm tailor made)

0～4000mm

(>4000mm tailor made)

Nominal pressure 1.0；1.6；2.5；4.0MPa 1.0；1.6；2.5MPa

Nominal diameter DN40 DN150

Ambient temperature -40～80℃ -40～80℃

Operation temperature

-40～120℃

(120 <T<250 for tailor made℃℃

only for local indicating)

-40～120℃

(120 <T<250 for tailor made℃℃

only for local indicating)

Measuring accuracy ±10mm ±10mm

Fluid density Liquid level:ρ≥0.5g/cm3 Interface:

ρ1-ρ2≥0.25g/cm3

Liquid level:ρ≥0.5g/cm3 Interface:

ρ1-ρ2≥0.25g/cm3

Material of contacting liquid 1Cr18Ni9Ti 1Cr18Ni9Ti

flange standard JB/T82.1-94（raised face）

JB/T82.2-94 (raised face)

JB/T82.1-94(raised face)

on customer's requirements

Tracing steam

jacket joint ZG1/2"（external thread） ZG1/2"（external thread）

For remote transmission

Model

Contents UHC series magnetic float

liquid level indicator

UQC series top-mounted magnetic

ball-float liquid level indicator

Dandong Top Electronics Instrument Co., Ltd Add: No..10 Huanghai Street, Zhenxing District, Dandong City, Liaoning Province,

P.R. China P.C.: 118000 Tel:+86-415-6227343 Fax: +86-415-6270003

Web site: http://www.ddtop.com E-mail: top@ddtop.com davidsong@ddtop.com

Measuring range 0～6000mm

(>6000mm tailor made)

0～4000mm

(>4000mm tailor made)

Power supply voltage 24V DC 24V DC

Output signal 4～20mA DC 4～20mA DC

Load characteristic See appendix See appendix

Ambient temperature -40～80℃ -40～80℃

Operating temperature -40～120℃ -40～120℃

Measuring accuracy ±10mm ±10mm

Associated equipment Guard grating

(see appendix)

Guard grating

(see appendix)

Protection class IP65 IP65

Power supply inlet M20×1.5（female thread） M20×1.5（female thread）

The upper limit and lower limit alarm (they can be fitted at any position within the measuring range)

Output signal: one for normal open; one for normal close;

Ambient temperature: -40～80 ;℃

Measuring accuracy: ±10mm;

Service life: ≥105 times

Protection class: IP65;

Power supply inlet: M20×1.5 (female thread)

Contact capacity: AC200VA，DC50W

Explosion-proof

Model UHC magnetic float liquid level indicator UQC magnetic ball float

liquid level indicator

Upper, lower

limits alarm

Type

Isolating

explosion

(local)

Isolating

explosion

(remote)

Intrinsic

Safe

(remote)

Isolating

explosion Intrinsic safe Isolating

explosion

Explosion

mark dⅡBT4 dⅡBT4 iaⅡCT5 dⅡBT4 iaⅡCT5 dⅡBT4

Certificate

explosion

GYB98282 GYB98289 GYB02469 GYB98274 GYB02469 GYB98287

Structure principle

UHC series magnetic float liquid level indicators and UQC series magnetic ball float liquid level indicators are

composed of body part, local indicator, remote transducer, upper limit and lower limit alarms. UHC series magnetic

float liquid level indicators are mounted and connected on the side of vessels. When the float moves up and down

with the liquid level (interface level) changing, the magnet steel inside the float drives the magnetic flakes inside of

the indicator to roll over according to magnetic coupling principle. All the magnetic flakes are coated with red one

side and blue other side. The continuous red or blue zone (red represents the liquid, while blue represents air or gas)

can clearly indicate actual liquid level or interface level inside of vessels. While UQC series magnet ball float liquid

Dandong Top Electronics Instrument Co., Ltd Add: No..10 Huanghai Street, Zhenxing District, Dandong City, Liaoning Province,

P.R. China P.C.: 118000 Tel:+86-415-6227343 Fax: +86-415-6270003

Web site: http://www.ddtop.com E-mail: top@ddtop.com davidsong@ddtop.com

level indicators are mounted on the top of vessels. With the liquid or interface level changing, the ball float will

move up and down and drive the magnetic connecting rod goes up and down. The magnet steel inside of the

connecting rod drives the magnetic flakes inside of the indicator to roll over according to magnetic coupling

principle. All the magnetic flakes are coated with red one side and blue other side. The continuous red or blue zone

(red represents the liquid, while blue represents air or gas) can clearly indicate actual liquid level or interface level

inside of vessels. With remote transducers and upper, lower alarms equipped, the UHC, UQC series indicators can

realize to remotely transmit the liquid level signal and perform automatic control.

Mode selection sheet

Model Specification code Contents

UHC- Magnetic float level indicator

UHC- Magnetic float liquid level indicator

UQC-

Magnetic ball float liquid level

indicator

M With local indicator

N Without local indicator

S With remote transducer

T Without remote transducer

A With upper limit alarm

B With lower limit alarm

C With upper and lower limit alarm

D Without alarm

E PN1.0MPa

F PN1.6MPa

G PN2.5MPa

J PN4.0MPa ( only for UHC)

* level ρ or the interface ρ1 /ρ2

* Measuring range.

For UQC, please note the neck length

d Isolating explosion

i Intrinsic safe explosion-proof

W With steam jacket

□－ □ □ □ □ □ - □ □ □

Model Selection Example

UHC-MSBF0.8/0.5-1800dW is with local indicator, with remote transducer, with lower limit alarm, nominal

pressure 1.6MPa, measuring interface, fluids densities 0.8g/m3 and 0.5g/m3 , measuring range 1800mm, isolating

explosion, with tracing steam jacket magnetic float liquid level indicator.

UQC-MTAG1.05-2000d (neck length: 500mm) is with local indicator, without remote transducer, with upper limit

alarm, nominal pressure 2.5MPa, measuring level, fluid density is 1.05 g/m3 , measuring range 2000mm, isolating

explosion, neck length 500mm top- mounted magnetic ball float liquid level indicator.

UHC magnetic float liquid level indicator outline sketch and installation dimensions

Dandong Top Electronics Instrument Co., Ltd Add: No..10 Huanghai Street, Zhenxing District, Dandong City, Liaoning Province,

P.R. China P.C.: 118000 Tel:+86-415-6227343 Fax: +86-415-6270003

Web site: http://www.ddtop.com E-mail: top@ddtop.com davidsong@ddtop.com

UQC top-mounted magnetic ball float liquid level indicator outline sketch and installation dimensions

Note: L (neck length) is the distance between the liquid level and flange surface when the ball float reaches the

highest position.

Outside Drawings and Installation Dime nsions

Figure 1 Figure 2

Figure 1 UHC magnetic float local indicating

Figure 2 UHC magnetic float local indicaling long distance transmission device

Dandong Top Electronics Instrument Co., Ltd Add: No..10 Huanghai Street, Zhenxing District, Dandong City, Liaoning Province,

P.R. China P.C.: 118000 Tel:+86-415-6227343 Fax: +86-415-6270003

Web site: http://www.ddtop.com E-mail: top@ddtop.com davidsong@ddtop.com

Figure 3 UQC magnetic float local indicaling long distance transmission device alarm

Dandong Top Electronics Instrument Co., Ltd Add: No..10 Huanghai Street, Zhenxing District, Dandong City, Liaoning Province,

P.R. China P.C.: 118000 Tel:+86-415-6227343 Fax: +86-415-6270003

Web site: http://www.ddtop.com E-mail: top@ddtop.com davidsong@ddtop.com

Figure 1 Figure 2

Figure 1 UQC magnetic ball-float local indicaling

Figure 2 UQC magnetic ball-float local indicaling long distance transmission device

Dandong Top Electronics Instrument Co., Ltd Add: No..10 Huanghai Street, Zhenxing District, Dandong City, Liaoning Province,

P.R. China P.C.: 118000 Tel:+86-415-6227343 Fax: +86-415-6270003

Web site: http://www.ddtop.com E-mail: top@ddtop.com davidsong@ddtop.com

Figure 3 UQC magnetic ball-float local indicaling long distance transmission device alarm

Note: L(neck length) is the distance between the liquid level and flange surface when the ball float reaches the

highest position.

Dandong Top Electronics Instrument Co., Ltd Add: No..10 Huanghai Street, Zhenxing District, Dandong City, Liaoning Province,

P.R. China P.C.: 118000 Tel:+86-415-6227343 Fax: +86-415-6270003

Web site: http://www.ddtop.com E-mail: top@ddtop.com davidsong@ddtop.com