LU-L adopts proliferate
silicon pressure sensors groupware which produced by famous
NovaSensor, American company and with high accuracy & high
stability. Through high stability amplifier electric circuit
and accurate temperature compensation, it can transfer the
measured liquid signal to 4~*0mADC standard electric
signal.
Exquisite seal technology and perfect installation
process can insure the high quality & best performance.
LU-L have two structure types: one-body type and separated-body
type, and according to measured mediums, there are electric
cable type, armored type and anti-corrosive type. Armored type
and anti-corrosive type can resist corrasion of several kinds
of corrosive liquid, can widely suit for user’s
requirement.
LU-L have two types: common type and intrinsically-safety
& explosion-proof type. Explosion-proof type can be used to
each kind of execrable or hazardous industrial field.
2.characteristic:
·0~0.3m to 0~**0m,
·one-body type and separated-body type,
·electric cable type, armored type and anti-corrosive
type,
·prevent lightning strike and radio disturbance,
·reverse polarity protection and current-limit
protection,
·Intrinsically-safety & Explosion-proof,
·zero & span external continually adjusted,
·High accuracy, high stability and high
reliability.
3. applicant:
·liquid survey and control of industry field,
·hydrology survey and control,
·Navigation and shipping manufacture,
·City water supply & sewage dealing with,
·Great river & dam and irrigation water
construction,
·Gas separate device and thermal motors,
·Food and soft drink device,
·Chemical and hospital device,
4.technical index
·Measured medium:
Water and common non-corrosive liquid (electric cable
type);
Each kind of liquid which compatible to **6L ( armored
type);
Each kind of corrosive liquid (anti-corrosive type);
·range ability: 0~0.3m to 0~**0m,
·over-load pressure: 2 times of max. range,
·output: ***0mA DC (*-wires)
·working voltage: *4~*6VDC (*-wires), standard
*4VDC±5%, Wpp<1%,
·medium temperature: **5 ~ ***0℃,
·environment temperature: **0 ~ **5℃
·Load resistance: (4~*0mA): R =(U**4)/0.**-R0,[U is power voltage, R0is electric cable inner
resistance], (0~*0mA): R≤1K&branded;,(0~5V):
R≥**0&branded;
5. performance index
·Accuracy:±0.*5%, including the synthesize
errors of non-linear, repeat and return difference.
·Zero error:≤±0.5% of output range (only
for one-body type),
( zero error is adjusted for separated-body type);
·zero shift: 0~**0% of the max. range (only for
separated-body type),
(no zero shift for one-body type)
·range adjustment: can willfully adjust between the min.
and max. ranges (only for separated-body
type),
(range could not be adjusted for one-body type)
·Over-pressure affect:<0.*5% of max.
range
·Power affect: <0.*1% of output range
·Load affect: can be neglected
·Temperature affect:±1.5% of max. range
(temperature –*0~*5℃, including zero
& span affections)
·Stability:±0.*5% of max. range (*2
months)
6. structure index:
·Diaphragm material: **6L stainless steel (for electric
cable type and armored type);
Ceramic (for anti-corrosive type)
·detection head material: 1Cr*8Ni9Ti (for electric cable
type and armored type);
PTFE. (for anti-corrosive type)
·lead-out line: ventilate cable which outer
diameterΦ9, double layer, wearable and water-proof
(electric cable type);
armored pipe which outer diameterΦ6,
stainless steel (armored type);
PTFE. Soft pipe which outer diameterΦ7.5
(anti-corrosive type);
·line connection box: aluminum alloy with plastic-spouted
around the surface,
·indicate meter: 0~**0% linear indication (analog meter,
only separated-body type);
**1/2 LCD digit display (digit display meter, only
separated-body type);
·explosion-proof: Instrinsically-safety: Ex iaⅡ
CT5;
