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Ion-science TVOC Manual de usuario Pagina 30

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TVOC MANUAL Ion Science Ltd
Page 30 of 32
Unrivalled Detection. www.ionscience.com
Technical specifications
PID Sensor With fence electrode technology
Lamp type 10.6 eV (Krypton)
TVOC enclosure ingress protection IP65
Sensor ingress protection IP54
Range 0 – 10 ppm / 0 – 22.8 mg/m
3
(0.01 resolution)
0 – 100 ppm / 0 – 228 mg/m
3
(0.1 resolution)
0- 1,000 ppm / 0 – 2280 mg/m
3
(1.0 resolution)
Non IS applications Input power 5 – 28 Vdc. 65 mA (0.5mm
2
to 2.5mm
2
C.S.A.)
4 – 20 mA power 8 – 35 Vdc. 22 mA (0.5mm
2
to 2.5mm
2
C.S.A.)
4-20mA loop must be externally powered
ATEX approval II 2G EEx ia IIC T4 (-20°C ≤Ta ≤+50°C)
IECEx approval Ex ia IIC T4 (-20°C Ta +50°C)
Certificate number Baseefa05ATEX0277
IS applications Entry parameters
Input power Ui = 18V Ii = 800mA Pi = 1.2W Ci = 0F Li = 0mH
4-20mA power Ui = 30V Ii = 200mA Pi = 1.2W Ci = 0F Li = 0mH
For information only please see ATEX certificate before installation
Zener Barriers: Required Ask your installation engineers for installation/application advice.
(Non sparking) approval II 3G Ex nA IIC T4 (-40
o
C < Ta < +50
o
C) (nA for zone 2 only)
Dimensions Weight
Height 188 mm (7.40”) Instrument 1.3kg (2.9 lb)
Width 126 mm (4.96”) Packed 1.47kg (3.2lb)
Depth 78 mm (3.07”)
Display 7 Segment, 4 Digit LCD. 4 Colour LED’s
Response Sensor T90 < 5sec
TVOC output update: Variable 1 second to 10 minutes
Accuracy 0 to 100 ppm: +/- 1 ppm (whichever is greater)
100 to 1000 ppm: +/- 10% or +/- 10 ppm (whichever is greater)
Linearity 0 – 1000 ppm >75%
Calibration Magnetically accessed
ZERO = Carbon canister
SPAN = 100 ppm Isobutylene +/- 10%
Temperature Operation: -20
o
C to +50
o
C (-4
o
F to 122
o
F)
Humidity 0 – 95% RH (non-condensing)
EMC Screened cables are required to archive the light industrial immunity
levels.
NB: All specifications are against an isobutylene calibration at 20 °C, 90% RH and up to 100 ppm.
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