AP26 air differential pressure transmitter is assembled with silicon piezoresistive differential pressure core. The differential pressure transmitter is of aluminum alloy structure. The two pressure ports are Ø6 gas pipe joints, which can be directly installed on the measuring pipe or connected through a pressure pipe. . Simple installation, compact and lightweight structure, widely used in boiler air supply, underground ventilation and other electric power, coal industry, ultra-clean workshop automatic detection pressure process control.


* Ø6 trachea joint, easy to install
* Measure the differential pressure value of tiny gas
* Wide operating temperature range
* High comprehensive precision


* HVAC, clean room technology
* Filter technology, flow detection
* Boiler air supply, underground ventilation
* Pitot tube, flow orifice plate

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Differential Pressure Transmitter

Performance Parameter:
Measuring Range 0~100Pa…100Kpa……10MPa(optional)
Overload Capability 1.5~2 times full-scale pressure
Burst Pressure 4xFS
Durability ﹥1×107 cycle
Pressure Type Gauge/Differential
Measuring medium Dry and clean gases and liquids compatible with 304 stainless steel
Response time ≤4ms
Resolution Min. resolution 0.5Pa
Accuracy (linear,hysteresis, repeatability) Typical:±0.5%FS
Long-term stability Typical:±0.2%FS/year Maximum:±0.3%FS/year
Zero temperature drift Typical:±0.02%FS/℃ Maximum:±0.05%FS/℃
Sensitivity temperature drift Typical:±0.02%FS/℃ Maximum:±0.05%FS/℃
Environmental Conditions:
Medium Temperature  -40~100℃
Ambient Temperature -40~85℃
Compensation Temperature  -20~80℃
Vibration resistance  ±10g             IEC 60068-2-6
Impact resistance  100g/1ms       IEC 60068-2-27
EMC- launch  EN61000-6-3
EMC- anti-interference  EN61000-6-2
Insulation resistance  ﹥100MΩ/100V
Shell Protection Plug type(IP65);Cable type(IP67) Compliance IEC 60529 standard
Certification CE
Electrical Specifications:
Code Standard signal(with short circuit protection) Supply voltage with polarity protection Power supply-Current Load(R) Output Impendence
A1 4~20mA DC 9~30V Max.25mA R≤(U-9)/0.02Ω
V1 1~5V DC DC 9~30V   8mA R≥50kΩ <2kΩ
V2 0~5 V DC DC 9~30V 8mA R≥50kΩ <2kΩ
V3  0.5~4.5V DC DC 9~30V 8mA R≥50kΩ <2kΩ
V4 0.5~4.5V DC DC 5±0.25V 8mA R≥50kΩ <2kΩ
Interface and housing Stainless Steel 304L
O-ring Silicone Rubber
Sensor Diaphragm Silicon wafer (can be measured dry, dust-free, non-corrosive or weakly corrosive, clean gas) and isolation diaphragm 316L
AP26 G 01KN A1 F2 W2
Model Pressure type Pressure Range Output Thread size Electrical connection





G = gauge or wind pressure
D = differential pressure
002C= ±200Pa  G/D
005C= ±500Pa  G/D
01KC= ±1KPa  G/D
02KC= ±2KPa  G/D
05KC= ±5KPa  G/D
10KC= ±10KPa G/D
005N= -500Pa  G/D
01KN= -1KPa  G/D
02KN= -2KPa  G/D
05KN= -5KPa  G/D
10KN= -10KPa  G/D
20KN= -20KPa  G/D
002P= 200Pa  G/D
005P= 500Pa  G/D
01KP=1KPa  G/D
02KP= 2KPa  G/D
05KP= 5KPa  G/D
10KP= 10KPa  G/D
20KP= 20KPa  G/D
40KP= 40KPa  G/D
001B= 100KPa  G/D
002B= 200KPa  G/D
V3=0.5~4.5V(8~30VDC supply)
F2= G ¼ Male
F3=Ф8 Gas nozzle
F0= Customized
W1= Straight Out 1m cable

Model example: AP26G01KNA1F2W1
Range: 0~-1KPa Gauge; Output: 4-20mA; Accuracy: ±0.5%FS; Supply: 9~30V DC, Pressure Connection: G ¼ Male; Electrical Connection: Straight Out 1m cable;
Note: G in the range table 01KP=1KPa G/D represents gauge pressure or wind pressure, which is the pressure difference with the atmosphere, that is, the wind pressure measurement of a single pressure port, D is the differential pressure measurement, measuring two pressure ports The pressure difference between the two, use the B copper connector in the outline drawing to lead to the negative pressure port, as shown in the above outline drawing.

Remarks: It can be customized if the order quantity exceeds a certain amount. Please contact the sales engineers for details

Specifications subject to change without notice. All rights reserved. All corporate names and trademarks stated herein are the property of their respective companies

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