PID-AH PID-AH2 Photoionization Gas Sensor PID Gas Sensor High Resolution Of 1ppb With Internal Heater The Sensor Can Work Normally Under High Humidity Without Being Affected

Model Number:PID-AH PID-AH2
Minimum Order Quantity:1
Delivery Time:3-5work days
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
Target gases:< 10.6 eV VOCs with ionisation potentials
Minimum detection level:1 ppb isobutylene
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Location: Shenzhen Guangdong China
Address: Room 3306AB 33rd Floor, SEG Plaza,Huaqiang North Road, Futian District, Shenzhen Guangdong Province 518028
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PID-AH Photoionization Gas Sensor Description
With a PID, the sample gas is exposed to deep ultraviolet light.


The emitted light ionises targeted gases and they are then detected by the PID electronics and reported as a concentration (ppb or ppm).

PIDs can measure Volatile Organic Compounds (VOCs) to very low concentrations.
Considered the gold standard for VOC measurement, Alphasense PIDs are compact and low power, with recently improved electronics and longer lamp life. An extended family of lamps now include better BTEX and chlorinated VOC detection. These sensors are pin-replaceable with the 4P90 pellistor.

The Alphasense PID sensor is offered in two models, A12 and AH2. They are virtually insensitive to humidity changes, providing unparalleled performance in a variety of applications.

PID-A12 has a linear dynamic range of 50 ppb to 6,000 ppm (Isobutylene).
PID-AH2 has a linear dynamic range of 1 ppb to 50 ppm (Isobutylene).

The sensors include a detector with lamp driver, amplifier circuitry, and user replaceable electrode stack, 10.6 eV lamp and particulate filter.


PID-AH Photoionization Gas Sensor Features:
• Measurement range of 0~50ppm
• High resolution of 1ppb
• Linear output
• No need of circuit design and easy to use
• With internal heater, the sensor can work normally under high humidity without being affected.


PID-AH Photoionization Gas Sensor PERFORMANCE
Target gasesVOCs with ionisation potentials< 10.6 eV
Minimum detection levelppb isobutylene1
Linear rangeppm isobutylene 3% deviation50
Overrangeppm isobutylene50
Sensitivitylinear range mV / ppm Isobutylene> 20
Full stabilisation timeminutes to 20 ppb20
Warm up timeseconds time to full operation5
Offset voltagemV variable between detectors46 to 60
Response time (t90)seconds diffusion mode< 3
PID-AH Photoionization Gas Sensor (PID Sensor) ELECTRICAL
Power consumption85 mW (max) at 3.2 V, 300 mW transient for 200 msec on switch-on
Supply voltage

3.2 to 3.6 VDC Ideally regulated ±0.01V (onboard regulator disabled)
3.2 to 10 VDC (onboard regulator enabled)
(maximum 10V for IS approval, maximum 18 V for non-IS)


Output signal

Offset voltage (minimum 46 mV) to Vmax
(Vmax = Vsupply -0.1 V when regulator is enabled)


PID-AH Photoionization Gas Sensor ENVIRONMENTAL
Temperature range-40℃ to +55℃ (Intrinsically Safe); -40℃ to +65℃ (non-IS)
Temperature dependence0℃ to 40℃ 90% to 100% of signal at 20℃
-20℃ 140% of signal at 20℃
Relative humidity rangeNon-condensing 0 to 95%
Humidity sensitivityDuring operations: 0% to 75% rh transient near zero

China PID-AH PID-AH2 Photoionization Gas Sensor PID Gas Sensor High Resolution Of 1ppb With Internal Heater The Sensor Can Work Normally Under High Humidity Without Being Affected supplier

PID-AH PID-AH2 Photoionization Gas Sensor PID Gas Sensor High Resolution Of 1ppb With Internal Heater The Sensor Can Work Normally Under High Humidity Without Being Affected

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