Introduction of diffrential pressure transmitter:
BP93420DII differential pressure transmitter uses a piezoresistive
diffused silicon sensor. When the measured medium's differential
pressure acts on the corrugated diaphragms at both ends of the
sensor, the output signal from the Wheatstone bridge on the sensor
chip exhibits a good linear relationship with the differential
pressure, enabling accurate measurement of the differential
pressure. It is suitable for various gas and liquid differential
pressure measurements in industries such as petroleum, chemical,
power, and hydrology for pipeline applications.
Product Features:
1. The transmitter features a stainless steel structural design,
making it compact and easy to install
2. It undergoes strict temperature compensation and aging
screening, ensuring stable and reliable performances
3. The electrical interface can be selected as a plug-in or direct
wiring option.
Applications:
1. Fluid flow measurement: Differential pressure transmitters can
be used to measure the flow of a liquid or gas, calculating the
flow rate by measuring the differential pressure generated by the
fluid in the pipe.
2. Liquid level measurement: The differential pressure transmitter
can be used to measure the liquid level, by measuring the
differential pressure on both sides of the liquid to calculate the
liquid level height.
3. Filter blockage monitoring: Differential pressure transmitters
can be used to monitor the degree of blockage of the filter and
determine whether the filter needs to be cleaned or replaced by
measuring the differential pressure before and after the filter.
4. Gas density measurement: Differential pressure transmitters can
calculate the density of a gas by measuring the differential
pressure produced by the gas at different pressures.
5. Air quality monitoring: Differential pressure transmitters can
be used to monitor the quality of indoor or outdoor air, judging
the freshness and pollution of the air by measuring the difference
pressure between indoor and outdoor.
6. HVAC system control: Differential pressure transmitters can be
used to monitor and control parameters such as air flow, wind speed
and wind pressure in HVAC systems.
7. Differential pressure monitoring: Differential pressure
transmitters can be used to monitor pressure differences in
pipelines or containers to ensure proper system operation and fault
diagnosis
Performance Parameters |
Measurement Range | 0-10KPa...~2MPa |
Pressure Type | Differential Pressure |
Single-side Overload | ≤3 times of the rated range |
Static pressure | The minimum value between 5 times the rated range or 7 MPa |
Accuracy @ 25ºC | ±0.25% (Typical) ±0.5% (Maximum) |
Repeatability | ±0.03% (Typ.) ±0.05%FS (Max.) |
Hysteresis | ±0.03% (Typ.) ±0.05%FS (Max.) |
Long-Term Stability | ±0.5%F.S/Year(≤200KPa) ±0.2%F.S/Year(>200KPa) |
Zero Temperature Drift | ±0.01%FS/ºC(>100KPa), ±0.02%FS/ºC (≤100Kpa) |
Span Temperature Drift | ±0.01%FS/ºC(>100KPa), ±0.02%FS/ºC (≤100Kpa) |
Compensation Temperature | 0-50ºC(0-10KPa, 0-20KPa) ,0-70ºC ,-10-70ºC |
Operating Temperature | -30ºC~80ºC |
Storage Temperature | -40ºC~100ºC |
Vibration | 10g,55Hz ~ 2kHz |
Housing Material | 304,316L |
Diaphragm Material | 316L |
Insulation Resistance | 100MΩ 100VDC |
Explosion-proof Rating | Intrinsically safe and explosion-proof |
Protection Rating | IP65 |
Weight | ~0.45kg |
Output Signal | Supply Voltage | Output Type |
4~20mA | 12~30VDC | 2/3/4 wire |
0~10/20mA | 3 wire |
0/1~5V |
0.5~4.5V | 5VDC |



1. When selecting the product, please ensure that the measured
medium is compatible with the product's contacting parts.
2. To ensure reliable operation, it is recommended to install a
three-valve manifold between the measurement point and the
transmitter, ensuring a slow and uniform pressure application to
the positive and negative pressure chambers of the transmitter.
3. During installation, it is advisable to position the pressure
interfaces at both ends horizontally to minimize the impact of the
installation location on the product.
4. For special requirements such as strong vibration, instant
impact force, strong electromagnetic interference, or radio
frequency interference, please inform our company and specify these
requirements in the orderOrder Guide |
BP93420XX | Pressure Transmitter |
| Code | Outline Construction |
DII | Differential Pressure Transmitter |
| Measurement Range | 0-10KPa...~2MPa |
| Code | Power Supply |
D1 | 24VDC |
D2 | 5VDC |
D3 | Other |
| Code | Output Signal |
S1 | 4~20mADC | S5 | 0~20mADC |
S2 | 1~5VDC | S6 | 0~10VDC |
S3 | 0~5VDC | S7 | 0.5~4.5VDC |
S4 | 0~10mADC | | |
| Code | Pressure Connection |
J1 | M20×1.5 Male |
J2 | G1/2 Male |
J3 | G1/4 Male |
J4 | 1/2 NPT Male |
J5 | Other |
| Code | Electrical Connection |
B1 | Hirschmann |
B2 | PG7 Plug |
B3 | Sealed Cable Output |
B4 | Other |
| Code | Pressure Type |
D | Differential Pressure |
1. Q: What are the features of your pressure sensor transmitters?
A: High precision, durability, and excellent performance.
Customization available.
2. Q: Can I customize special specifications?
A: Yes, our engineers can tailor products to meet specific needs. We provide OEM and ODM service
3. Q: What is your production capacity?
A: Our manufacturing facilities can produce up to 30,000 pressure
sensor transmitters per month, so we are fully capable of meeting
the needs of large-scale orders. However, it is advisable to
contact our sales team in advance to ensure smooth production and
delivery scheduling.
4. Q: What's the typical delivery period?
A: 5~8 working day for standard models. Customized products may
vary.
5. Q: How are the products priced? Any discounts?
A: Competitive pricing with discounts for bulk orders or long-term
partners.
6. Q: What is the warranty of your products? And after-sales
service?
A: Our warranty time is 24 months after shipment, and our
after-sales will respond with your questions in 24hrs, remote
instruction by PC network is always available.
