ALM type micro pressure transmitterDetailed product description：

Product Introduction

The ALM type micro pressure transmitter adopts high-quality sensors from the United States and utilizes ALM technology to provide high precision, high stability, and excellent cost-effectiveness, providing a reliable and economical transmitter for measuring micro pressure gases.  
Features:
·Extremely high performance price ratio
·Temperature compensation
·Anti surge voltage
·Accuracy of 0.1%, 0.2%, 0.5%
·Over range protection
·Anti RF interference
·Annual stability 0.2%
·Reverse polarity protection
·Integrated junction box

ALM type ALM type micro pressure transmitter product technical specifications

Tested medium: general gas
Accuracy: 0.1%, 0.2%, 0.5%
Stability: 0.2% Fs/year
Measurement range: 0-100Pa... 7000Pa
Output: 4-20mA
Power supply voltage: 12-36V two-wire system
Load resistance: R=50 × (u-12) (Ω), U is the power supply voltage
Load characteristics: as shown in Figure 1
Overpressure limit: 5 times the rated pressure in each range gear
Range migration ratio: 7:1
Frequency response: 0.1S
Start time: 2 seconds without preheating required
Power supply voltage impact: 0.01% Fs/V
Temperature effect: The maximum error caused by temperature changes between 0-70 ℃ is 0.75% Fs/year
RF interference: interference between 27-100MHz and 30V/m field strength, with an output difference of less than 0.1% Fs
Vibration impact: The total impact of vibration with a frequency of 10-1000HZ and an acceleration of 10g is less than 0.1% Fs
Over range impact: After withstanding 1.5 times the rated pressure and recovering, the total impact is less than 0.04% Fs
Measuring medium temperature: -40~125 ℃
Working temperature: 0-95% relative temperature
Lifespan: 108 dynamic pressure cycles
Insulation resistance: 5 × 108 Ω
Insulation strength: withstand voltage of 500V without breakdown or flashover phenomenon
Protection level: IP65
Explosion proof: Recognized by the National Instrumentation Explosion proof Safety Supervision and Inspection Station (NEPSI) of the People's Republic of China, it meets the national standards of Gb3836 · 1-83 and GB3836 · 4-83
Explosion proof mark: ia Ⅱ CT5
Product Quality Certification: Recognized by the Beijing Automatic Intelligent Instrument Product Quality Supervision Station, it meets the People's Republic of China Metrology JJG882-94 standard
Structural material: shell stainless steel 1Cr18Ni9Ti
Material of the tested qualitative contact:
Physical properties:
Process connector: Stainless steel 1Gr18Ni9Ti
Isolation membrane: 316 stainless steel
Sealing element: Silicone rubber
Electrical interface: M20 × 1.5 cable with a diameter of Φ 8
Process interface: M20 × 1.5 or 1/2NPT threaded connection
Weight: 0.5kg
Size: Φ 30 × 150