LFT710 | LFT710 Intelligent Differential Pressure Transmitter |
Code 1 | Measuring range |
B | 0.2~6 KPa |
C | 1.0~40KPa |
D | 2.5~250KPa |
E | 10~1000KPa |
F | 30~3000KPa |
Code 2 | Output |
E | Standard intelligent (4~20) mA DC two-wire system + HART protocol digital communication |
J | Standard intelligent (4-20) mA DC two-wire system + HART protocol digital communication + square signal output |
Code 3 | Isolation diaphragm |
22 | 316L Stainless steel |
23 | Hastelloy C |
24 | Monel |
25 | Tantalum |
Code 4 | Filling fluid |
D | Silicone oil |
F | Fluorine oil |
Code 5 | Electrical Interface |
M | M20×1.5internal thread |
N | 1/2NPTinternal thread |
Code 6 | Relief valve position |
A | No relief valve (with plug) |
B | Upper side of process flange |
C | Lower part of the process flange side |
Code 7 | Mounting brackets |
N | Without mounting bracket |
B1 | Tube bending bracket (carbon steel) |
B2 | Panel mounting bracket (carbon steel) |
B3 | Tube mounted flat bracket (carbon steel) |
B5 | Tube bending bracket (stainless steel) |
B6 | Pan-mounted curved bracket (stainless steel) |
B7 | Tube mounted flat bracket (stainless steel) |
Code 8 | Static pressure |
A | 10MPa |
B | 16Mpa |
C | 20MPa |
Code 9 | Explosion-proof grade |
N | Common type (no explosion-proof) |
D | Flameproof ExdⅡCT6 |
I | Intrinsically safe explosion-proof type ExiaⅡCT6 |
Code 10 | Accuracy class |
2 | 0.2 |
5 | 0.5 |
7 | 0.075 |
6 | 0.065 |
8 | 0.05 |
Option code | Option |
N | With "waist" shaped joint: NPT1/2 taper pipe internal thread |
J | With "T" shaped joint: M20×1.5 external thread and welding pressure tube (stainless steel) at the rear |
F | With "waist" shaped joint plus NPT1/2 pressure transfer head and back welding pressure tube (stainless steel) |
P | No process connection (l/4 NPT female thread on chamber flange) |
K | Degreasing and washing treatment |
L | Hanging tag |
H | Lightning protection (transient voltage resistance) |
E | English nameplate |
V3 | Three valve group |
V5 | Five valve group |
M5 | LCD liquid crystal display |
N | No header |
Electromagnetic compatibility schedule
No. | Test items | Basic standard | Test Conditions | Performance level |
1 | Radiation interference (housing) | GB/T 9254-2008 Table 5 | 30MHz~1000MHz | Qualified |
2 | Conducted interference (DC power port) | GB/T 9254-2008 Table1 | 0.15MHz~30MHz | Qualified |
3 | Electrostatic discharge (ESD) immunity | GB/T 17626.2-2006 | 4kV(Contact) 8kV(Air) | B |
4 | RF electromagnetic field immunity | GB/T 17626.3-2006 | 10V/m (80MHz~1GHz) | A |
5 | Power frequency magnetic field immunity | GB/T 17626.8-2006 | 30A/m | A |
6 | Electrical fast transient pulse group immunity | GB/T 17626.4-2008 | 2kV(5/50ns,5kHz) | B |
7 | Surge immunity | GB/T 17626.5-2008 | 1kV(Between lines) 2kV(Between line and ground)(1.2us/50us) | B |
8 | RF field induced conducted interference immunity | GB/T 17626.6-2008 | 3V(150KHz~80MHz) | A |
Standard
(Adjust the range based on the standard zero points, stainless steel 316L diaphragm, filling fluid is silicone oil)
1:Performance specifications
Adjust the reference accuracy of the range
(Including linearity, hysteresis, and repeatability from zero)
± 0.075%
If TF>10 (TF=Maximum range/adjustment range) then:
±(0.0075×TF)%
The square root output accuracy is 1.5 times the above linear reference accuracy
Optional highest accuracy 0.05%.
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