Single Crystal Silicon Differential Pressure Transmitter Standard Specifications
Calibrated with a standard zero point, 316L stainless steel diaphragm, filled with silicone oil.
I. Performance Specifications
Reference accuracy for range adjustment
Including linearity, hysteresis, and repeatability starting from zero: ±0.075%
If TD > 10 (TD = Range/Adjustable Range), then it is: ±(0.0075 × TD)%
The square root output accuracy is 1.5 times the linear reference accuracy.
1. Environmental temperature affects
Range Code | -20°C to 65°C Total Impingement Volume |
A | ±(0.45×TD+0.25)%×Span |
B | ±(0.30×TD+0.20)%×Span |
C/D/E | ±(0.20×TD+0.10)%×Span |
Range Code | -40°C to -20°C and 65°C to 85°C total impact volume |
A | ±(0.45×TD+0.25)%×Span |
B | ±(0.30×TD+0.20)%×Span |
C/D/E | ±(0.20×TD+0.10)%×Span |
Range Impact: ±0.075% × Span
2. Static Pressure Effects
Range Code | Impact Quantity |
A | ±(0.15%URL+0.10%Span)/4MPa |
B | ±(0.10%URL+0.075%Span)/16MPa |
C/D/E | ±(0.05%URL+0.05%Span)/16MPa |
3. Overvoltage Effects
Range Code | Impact Factor |
A | ±0.2%×Span/4MPa |
B | ±0.2%×Span/16MPa |
C/D/E | ±0.1%×Span/16MPa |
4. Long-term stability
Range Code | Impact quantity |
A | ±0.5% Span per year |
B | ±0.2% × Span / 1 year |
C/D/E | ±0.1% Span per year |
Power Influence: ±0.001% / 10V (12～42V DC), negligible.
II. Functional Specifications
1. Range and scope
Range/Scope | kPa | mbar | |
A | Range | 0.1～1 | 1～10 |
Scope | -1～1 | -10～10 | |
B | Range | 0.2～6 | 2～60 |
Scope | -6～6 | -60～60 | |
C | Range | 0.4～40 | 4～400 |
Scope | -40～40 | -400～400 | |
D | Range | 2.5～250 | 25～2500 |
Scope | -250～250 | -2500～2500 | |
E | Range | 20～2000 | 0.2～20 bar |
Scope | -500～2000 | -5～20bar | |
2. Range limits
Within the range of the scale, it can be adjusted arbitrarily.
Select the range code with the lowest ratio possible to optimize performance characteristics.
3. Zero Setting
Zero and range can be adjusted to any value within the measurement range of the table, as long as: calibrated range ≥ sub-range
4. Installation location affects
Position changes parallel to the film surface do not affect zero drift. If the installation position changes by more than 90° from the film surface, there will be a zero-point effect within the range of <0.4 kPa, which can be corrected by adjusting the zeroing calibration. No range effect.
5. Output
2-wire system, 4-20 mA DC, optional HART output digital communication, linear or square root output available.
Output Signal Limit: Imin = 3.9mA, Imax = 20.5mA
6. Alarm Current
Low Report Mode (Small): 3.7 mA
High Reporting Mode (Large): 21 mA
Non-Report Mode (Maintain): Maintain the effective current value prior to the fault
Alarm Current Standard Setting: High Alarm Mode
7. Response Time
Amplifier component damping constant is 0.1s; sensor time constant is 0.1-1.6s, depending on the range and range ratio. Additional adjustable time constants: 0.1-60s.
The impact on non-linear outputs (such as square root functions) depends on the function in question and can be calculated accordingly.
Preheat Time: < 15s
Ambient Temperature: -40 to 85℃; with LCD display and fluororubber sealing ring, -20 to 65℃
Storage/Transportation Temperature: -50～85℃; with LCD display: -40～85℃
Working Pressure: Nominal working pressure is divided into three grades: 16MPa, 25MPa, and 40MPa.
Static pressure limit: From 3.5 kPa pressure to rated pressure, the protective pressure can be greater than 1.5 times the rated pressure, applied simultaneously on both sides of the transmitter.
One-way overload limit: One-way overload up to rated pressure
Electromagnetic Compatibility (EMC)
See the "Electromagnetic Compatibility Appendix" on the next page.
3. Installation
1. Power supply and load conditions
Power supply voltage is 24V, R ≤ (Us - 12V) / Imax kΩ; where Imax = 23 mA
Large Power Voltage: 42VDC
Low power voltage: 12VDC, 15VDC (backlit LCD display)
Digital Communication Load Range: 250～600Ω
2. Electrical Connections
M20X1.5 cable sealing nuts, terminal connectors for wires with a cross-sectional area of 0.5～2.5mm².
3. Process Connection
The two ends of the process connection flange have NPT 1/4 and UNF 7/16'' internal threads.
IV. Physical Specifications
Material
Measuring Diaphragm Box: Stainless Steel 316L
Diaphragms: 316L Stainless Steel, Hastelloy C
Process Flange: 304 Stainless Steel
Nuts and Bolts: Stainless Steel (A4)
Filler Fluid: Silicone Oil
Seals: Nitrile rubber (NBR), Fluororubber (FKM)
Polytetrafluoroethylene (PTFE)
Transmitter Housing: Aluminum alloy material, exterior coated with epoxy resin
O-Ring: Nitrile Rubber (NBR)
Label: Stainless Steel 304
Weight: 3.3 kg (Excluding: LCD display, mounting bracket, process connections)
Shell Protection Grade: IP67
2. Electromagnetic Compatibility Appendix
Serial Number | Testing Items | Basic Standards | Test Conditions | Performance Grade |
1 | Radiation Interference (Shell) | GB/T 9254-2008 Table 5 | 30MHz～1000MHz | Qualified |
2 | Conduction Interference (DC Power Port) | GB/T 9254-2008 Table 1 | 0.15MHz～30MHz | Qualified |
3 | Electrostatic Discharge (ESD) Immunity | GB/T 17626.2-2006 | 4kV (contact) 8kV (air) | B |
4 | Radio Frequency Electromagnetic Field Immunity | GB/T 17626.3-2006 | 10V/m (80MHz～1GHz) | A |
5 | Frequency-Driven Magnetic Field Immunity | GB/T 17626.8-2006 | 30A/m | A |
6 | Electrical Fast Transient/Burst Immunity | GB/T 17626.4-2008 | 2kV(5/50ns,5kHz) | B |
7 | Surge Immunity | GB/T 17626.5-2008 | 1kV (line-to-line) 2kV (line to ground) (1.2us/50us) | B |
8 | Radiated immunity to conducted interference by radio frequency field | GB/T 17626.6-2008 | 3V (150KHz～80MHz) | A |
Note: (1) A Performance Level Explanation: The performance is normal within the technical specification limits during testing.
(2) B Performance Level Description: During testing, the function or performance may temporarily decrease or be lost, but it can recover on its own. The actual operating status, storage, and data remain unchanged.
