PID-AX

Notes:
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: 0 V 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 - 3.2 V or 3.2 - 3.6 V 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 approved) or 3.6 - 18V (not
IS approved) will be required. These sensors will then be internally regulated
to 3.3V.
PID-HS2 shipped with regulator disabled.
PERFORMANCE
Target gases VOCs with ionisation energies less than the lamp energy, see Table 1
Minimum resolution ppb isobutylene < 0.5
Linear range ppm isobutylene 5% deviation 3
Overrange ppm isobutylene 3
Sensitivity linear range mV / ppm Isobutylene, see Table 1 for options > 500
Full stabilisation time minutes to 0.5 ppb time to full operation 20
Warm up time seconds 5
Offset voltage mV 70 to 200
Response time (t90) seconds diffusion mode < 10
ELECTRICAL
Power consumption 85 mW (max) at 3.2 V, 350 mW transient for 200 msec on switch-on
90 mW at 3.3 V, 460 mW transient for 200 msec on switch-on
Output signal Offset voltage (minimum 70 mV) to Vmax
(Vmax = Vsupply - 0.2 V when regulator is enabled)
Supply voltage
ENVIRONMENTAL
Temperature range -40ºC to +55ºC (Intrinsically safe)
Temperature dependence Please refer to figures 2 and 3
Relative humidity range Non-condensing 0 to 99%
KEY SPECIFICATIONS
Operating life 5 years (excluding replaceable lamp and electrode stack)
IS Approval IECEx Ex ia IIC T4; ATEX Ex ia II 1G -40ºC < Ta < +55ºC (< 10VDC supply)
Onboard filter To remove liquids and particulates
Lamp User replaceable
Electrode stack User replaceable
Error state signal Lamp out: n/a
Electronic error: < 50 mV
Weight < 8g
Position sensitivity None
Warranty period Electronics and housing: 24 months
Lamp and electrode stack are user replaceable, see Table 1