Product Brief
The SPB102 series digital pressure instrument adopts imported sensors, which have superior performance, high accuracy, corrosion resistance, impact resistance, vibration resistance, and good long-term stability. The signal processing circuit is composed of the latest ultra-low power MCU, signal processing chip, and power management chip. The instrument is powered by a large capacity high-performance lithium battery, which has a long lifespan and can also be connected to an external power source.

The SPB102 series digital pressure transmitter adopts a unique lightning protection circuit of "buffering, adsorption, discharge, and suppression". This lightning protection technology has achieved good lightning protection effect in the use of Changqing Oilfield. Pay attention to every detail in the production process of the product; Before leaving the factory, the product undergoes processes such as high and low temperature aging, stress aging, etc. to ensure its stability.

The SPB series digital pressure instruments are widely used in industries and scientific research fields such as petroleum, chemical, aviation, aerospace, military, textile, metallurgy, mining, light industry, medicine, electricity, environmental protection, municipal, food, health, etc., under all-weather harsh environments. They are particularly suitable for applications with corrosiveness, impact, vibration, etc. They are an ideal substitute for traditional mechanical pointer pressure gauges and ordinary pressure transmitters.

Application
Replace imported pressure transmitters
Pressure monitoring and remote transmission of oil and gas wells
Suitable for large-scale pressure parameter network collection

Characteristics
Range can be transferred, it is recommended not to exceed 3:1
Capable of simultaneously outputting 4-20mA and RS485 communication function
Optional RS485 communication function or 4-20mA current output
The output current resolution can reach 3uA
Never disconnect communication technology, the bus supports 255 RS485 devices
Unique anti RF interference technology, perfectly matched with remote monitoring of data transmission radio stations
Enhanced lightning protection technology ensures safe operation of instruments
Zero point self stabilization technology
Temperature compensation technology
Technical data
measurement range
Gauge pressure: -100kPa~0~1kPa~260MPa
Differential pressure: 0-500Pa-3.5MPa
Absolute pressure: 0-10kPa~60MPa
Output signal: 4-20mA (24VDC two-wire system), 0-5V, 1-5V, 0-10V
Communication methods: RS485, RS232, MODBUS
Accuracy level: 0.1 level, 0.2 level, 0.5 level
Stability: better than 0.1% FS/year, better than 0.2% FS/year
Display mode: Dynamic four digit LCD digital display (equivalent to 4.5 digits) with Chinese character prompts, capable of displaying pressure units such as kPa and MPa
Overload pressure: 1.5-3 times the range, depending on the measurement range
Range migration: 3:1
Power supply: 10~30VDC
Load capacity:U-Loop Voltage (V) RL - Allowable Load Resistance (Ω)
Medium temperature: -40~85 ℃
Working environment temperature: -30 ℃~60 ℃; Humidity:<90%
Explosion proof level: ExiaIIBT4, ExdIIBT4
Electrical interface: M20 × 1.5
Process connection: M20 × 1.5, M12 × 1.0, G1/2, G1/4, etc. or according to user requirements

External dimensions (unit: mm)