| Model: | - |
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| Brand: | isweek |
| Origin: | Made In China |
| Category: | Electronics & Electricity / Electronic Components / Sense Organ |
| Label: | Gas Sensors , Electrochemical Gas |
| Price: |
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| Min. Order: | - |
Photo Ionisation Detector - PID-AH2
Target gases VOCs with ionisation potentials < 10.6 eV
Minimum detection level ppb isobutylene 1
Linear range ppm isobutylene 3% deviation 50
Overrange ppm isobutylene 50
Sensitivity linear range mV / ppm Isobutylene > 20
Full stabilisation time minutes to 20 ppb 20
Warm up time seconds time to full operation 5
Offset voltage mV variable between detectors 46 to 60
Response time (t90) seconds diffusion mode < 3
Product Specification
Figure 1 PID-AH2 Schematic Diagram
1. Do not obstruct Ø3.5 sensing area
2. Seal between Ø6.2 and Ø9.0 (if different to atmosphere)
3. Pin out details:
Pin 1: + V supply (See note 5)
Pin 2: Signal output
Pin 3: 0V supply
4. All dimensions ±0.1mm unless otherwise stated
5. Input voltage selector hole:
a) When filled with solder the onboard regulator is disabled.
A regulated supply of 3.0 - 3.6V (typically 3.3V) is then required.
b) When not filled with solder the onboard regulator is enabled.
A regulated or unregulated supply between 3.6 - 10 V is then required
for IS applications, or up to 18 V for non-IS applications.
Nomally shipped with regulator enabled
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PERFORMANCE |
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Target gases |
VOCs with ionisation potentials < 10.6 eV |
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Minimum detection level |
ppb isobutylene |
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1 |
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Linear range |
ppm isobutylene |
3% deviation |
50 |
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Overrange |
ppm isobutylene |
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50 |
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Sensitivity |
linear range |
mV / ppm Isobutylene |
> 20 |
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Full stabilisation time |
minutes to 20 ppb |
20 |
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Warm up time |
seconds |
time to full operation |
5 |
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Offset voltage |
mV variable between detectors |
46 to 60 |
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Response time (t90) |
seconds |
diffusion mode |
< 3 |
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ELECTRICAL |
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Power consumption |
85 mW (max) at 3.2 V, 300 mW transient for 200 msec on switch-on |
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Supply voltage |
3.2 to 3.6 VDC |
Ideally regulated ±0.01V (onboard regulator disabled) |
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3.2 to 10 VDC |
(onboard regulator enabled) |
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(maximum 10V for IS approval, maximum 18 V for non-IS) |
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Output signal |
Offset voltage (minimum 46 mV) to Vmax |
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(Vmax = Vsupply -0.1 V when regulator is enabled) |
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ENVIRONMENTAL |
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Temperature range |
-40ºC to +55ºC (Intrinsically Safe); -40ºC to +65ºC (non-IS) |
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Temperature dependence |
0°C to 40°C |
90% to 100% of signal at 20°C |
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-20°C |
140% of signal at 20°C |
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Relative humidity range |
Non-condensing |
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0 to 95% |
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Humidity sensitivity |
During operations: 0% to 75% rh transient |
near zero |
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KEY SPECIFICATIONS |
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Operating life |
5 years (excluding replaceable lamp and electrode stack) |
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IS Approval |
IECEx Ex ia IIC T4; ATEX Ex ia II 1G -40ºC < Ta < +55ºC (< 10VDC supply) |
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Onboard filter |
To remove liquids and particulates |
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Lamp |
User replaceable |
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Electrode stack |
User replaceable |
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Error state signal |
Lamp out: 35 mV |
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Weight |
< 8g |
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Position sensitivity |
None |
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Warranty period |
Electronics and housing: 24 months |
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Lamp and electrode stack are user replaceable. 10.6eV lamp: 5,000 lit hours |
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