| Measuring Technique |
TDLAS |
| Measurement range |
1 ppmV to 1000ppmV
|
Accuracy
|
±1% of reading > 100ppmV
±1ppmV < 100ppmV
|
| Repeatability |
<1ppmV (long term stability <0.1ppmV/year)
|
Limit of detection
|
1ppmV
|
| Available units |
ppmV, lb/MMSCF, (ISO18453 or IGT#8), mg/Nm3, dew point °C or °F
|
Response speed
|
Optical response 0.2s
Display update 2-3s
|
| Environmental conditions |
Indoor version: –10°C to +45°C
Outdoor version:* –20°C to +45°C
Outdoor with cooling option:* –20°C to +55°C |
Elektriksel Özellikler
|
| Supply voltage |
110 V AC or 230 V AC 50/60Hz |
| Power requirements |
Indoor system: 80W
Outdoor system: 180W |
Analog signals
|
Input: 2 x 4-20 mA user configurable
Output: 3 x 4-20 mA,3 alarms 250 V AC, 3A (volt-free contacts) |
| Digital communications |
RS485 MODBUS RTU |
| Data logging |
Logs all process variables with a user selectable sample period in the range 10s to 1 day |
| Local interface |
4.3” Colour LCD with touch pad operation |
| Electrical connections |
3 x M20 entries for cable glands |
Kalibrasyon
|
Factory method
|
3 point, traceable to NPL and NIST
|
| Recommended calibration |
None required, dependant on user or quality system requirements |
Fiziksel Özellikler
|
| Sample flow rate |
1 Nl/min cell sample, 1 to 5 Nl/min sample filter by-pass |
| Inlet pressure |
Maximum 138 barg (2000 psig) |
| Outlet pressure |
Cell vent 0.7 to 1.4 bara, Filter by-pass maximum 3 barg |
Enclosure type/ packaging
|
Aluminium alloy, Explosion proof, polyester coated, IP66, NEMA4 |
| Gas connections |
1/4” NPT(F) |
| Weight |
40kg (88lbs) (without sampling system) |
Sample system enclosure
|
304L or 316L stainless steel |
| Hazardous area certification |
ATEX: II 2G Ex d ib op is IIC T5 Gb Ta -20C to +60C
IECEx: 2G Ex d ib op is IIC T5 Gb Ta -20C to +60C
cMETus: Class 1 , Div 1, Groups ABCD, T5, Tamb -20C to +60C, IP66
TC TR Ex: 1 Ex d ib op is IIC T5 |
