⎝⎛星力捕鱼⎞⎠

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Flow meter series
Temperature instrument series
Pressure instrument series
Calibration instrument series
Level instrument series
Digital display instrument series
Transmitter instrument series
Wire and cable series
Bridge instrument cabinet series
Pipe fitting valve series

Address: Xiongyi, Jinhe Road, Jinhu County, Jiangsu Province
Lunan
Phone: 0517-86900901
0517-86900921
0517-86900920
Fax: 0517-86900902
Postcode: 211600
http://zzyfwh.com
Email: chinadongxiang@163.com
Transmitter instrument
Negative pressure transmitter

DX1151 / 3351SP series negative pressure transmitter is used to measure the negative pressure of liquid, gas and steam (less than the gauge pressure at actual atmospheric pressure, also called vacuum), and convert it into 4 ~ 20mADC standard signal output. Load RS-485 or HART communication protocol.
DX1151 / 3351SP negative pressure transmitter : theoretically can measure negative 100KPa pressure.
Performance specifications (no migration, tested under 316L stainless steel isolation diaphragm and silicone oil filling fluid)
1. Accuracy adjustment range of ± 0.25%, including the comprehensive error of linearity, variation and repeatability.
2. ± 0.25% of maximum stability range (12 months)
3. Positive and negative migration, maximum positive migration: 500% of the minimum adjustment range;
4. The zero error of temperature influence is ± 0.25% / 55 ℃ of range; the total error of zero and range is ± 0.5% / 55 ℃ of range.
5.Overvoltage affects ± 0.25% of the maximum range
6. The vibration affects any axis, the frequency is 200Hz, and the error caused is ± 0.05% / g of the maximum range.
7.The power supply impact is less than ± 0.005% / V of the output range
8. Load effect As long as the voltage of the input transmitter is higher than 12V, it has no effect.
9. The maximum impact of the installation position can produce a zero point error of 0.24KPa, which can be corrected without affecting the range.
10. The electromagnetic field interference and radio frequency interference effects are tested according to SAMA PM33.1 from 20 ~ 1000MHz, and the field strength can be as high as 30V / m
11.Power supply voltage
12 ~ 45V DC (standard is 24V DC, no load can work at 12V DC, with LCD meter voltage not lower than 16V DC)
12. Two-wire output signal, 4 ~ 20mA DC output. Digital communication can be set to linear output and square root output. RS-485 or HART communication protocol is loaded on 4 ~ 20mA DC output signal.
13.External safety fence parameters for intrinsically safe explosion-proof products
U0≤28V DC
I0≤30mA
P0≤O.84W
Structural specifications
1.The isolation diaphragm can be made of 316L stainless steel, Hastelloy, Monel alloy, tantalum
2.Exhaust and drain valve can be made of 316 stainless steel, Hastelloy, Monel alloy
3.The material of process flange and connector can be 316 stainless steel, Hastelloy, Monel alloy
4.The O-ring in contact with the medium can be fluoro rubber or nitrile rubber.
5.Filling liquid silicone oil
6.Process connection can choose waist flange or welded pipe joint
7.Electrical connection
1 / 2NPT Threading Hole
8, the protection level of the overall protection performance meets: IP67
Product use environment
8. General product temperature: -25 ℃ ~ + 85 ℃
Storage temperature: -40 ℃ ~ + 104 ℃
Ambient humidity: 0 ~ 90% RH
9. Use temperature of explosion-proof products: -25 ℃ ~ + 40 ℃
Storage temperature: -40 ℃ ~ + 104 ℃
Ambient humidity: 5 ~ 95% RH
Atmospheric pressure: 86 ~ 106kPa
◆ Selection method:

DX1151 / 3351SP

Negative pressure transmitter

Code

Measuring range KPa

2

1.5 0-0.1251.5

3

7.5 0-1.37.5

4

37.4 0-6.2 to 37.4

5

98 0-31.198

Code

Output

E

4-20mADC

S

Intelligent

Code

Structural materials

Flanges and fittings

排液阀 Bleed / drain valve

Isolation diaphragm

Filling liquid

twenty two

不锈钢 316 stainless steel

不锈钢 316 stainless steel

不锈钢 316 stainless steel

Silicone oil

twenty three

不锈钢 316 stainless steel

不锈钢 316 stainless steel

Hastelloy C

twenty four

不锈钢 316 stainless steel

不锈钢 316 stainless steel

Monel

25

不锈钢 316 stainless steel

不锈钢 316 stainless steel

Tantalum

33

Hastelloy C

Hastelloy C

Hastelloy C

35

Hastelloy C

Hastelloy C

Tantalum

44

Monel

Monel

Monel

Code

Option

M1

线性指示表 0-100% linear indicator

M2

LED display meter

M3

显示表 LCD display table

B1

Tube mounting bracket

B2

Panel mounting bracket

B3

Tube mount flat bracket

D1

Side relief valve on top of pressure chamber

D2

Side relief valve under the pressure chamber

Not note

锥管螺纹接头 1 / 2NPT taper pipe threaded joint

C2

,带后部焊接Ф14引压管的球锥连接头 T-shaped threaded joint M20 × 1.5 , ball-cone connector with welded Ф14 pressure tube

d

Flameproof dⅡBT4

i

Intrinsically safe iaⅡCT6

s

Stainless steel three valve group