| Sensor |
|
| Sensor Technology |
Michell Ceramic Moisture Sensor |
| Sensor Version |
Easidew PRO I.S |
| Measurement Range |
0.001 to 1000 ppmw
Higher range on request, actual range dependent on solubility of sample fluid |
| Calibration Range |
-100 to +20°Cdp |
| Accuracy |
Dew point: ±1°C between -59.9 and +20°Cdp, (±1.8°F between -75.9 and +68°Fdp)
±2°C between –60 & -100°Cdp,(±3.6°F between -76 and -148°Fdp)
Moisture content: ±10% of reading, ±20% of reading |
| Resolution |
0.1°C between +20 and -100°Cdp |
| Temperature Measurement |
Pt100 |
| Temperature Measurement Range |
-20 to +70°C |
| Temperature Measurement Accuracy |
± 0.2°C |
| Analysis Pressure |
Up to 5 MPa (50 barg) |
| Analysis Temperature |
0 to +50°C |
| Sample Flow Rate |
Min 0.01 l/min
Max 10 l/min
0.1 to 0.3 l/min recommended |
| Calibration |
Traceable to British (NPL) and American (NIST) National Humidity Standards |
| Certification |
|
| Hazardous area certification |
ATEX II 1 G Ex ia IIC T4 Ga (–20°C to +70°C)
IECEx Ex ia IIC T4 Ga (–20°C to +70°C)
TC TR 0Ex ia IIC T4 Ga (–20°C to +70°C)
FM Class I, Division 1, Groups A B C D, T4
cCSAus Class I, Division I Groups A B C D, T4
|
| Pattern Approval |
GOST-R, GOST-K |
| Control Unit |
|
| Display |
Two line 6-digits LED, displaying moisture content / dew point (user toggle) and temperature |
| Analogue Output |
Two 4-20 mA (max load 500 Ω)
User-configured for parameter, unit and range |
| Digital Output |
RS485 Modbus RTU |
| Display Mode |
Moisture content (ppmw)
Dew point (°C or °F)
Temperature (°C or °F) |
| Display Resolution |
0.1°Cdp, 0.1°Fdp, 0.001 ppmw, 0.1°C temp |
| Alarms |
Four alarm relays. Control action and set-point are user-programmable
Two Form C contacts rated 10 A, 240 V AC or 8 A, 24 V DC. Non-inductive load
Two Form A contacts rated 5 A, 240 V AC or 4 A, 24 V DC. Non-inductive load |
| I.S. Barriers |
Galvanic isolation type, integrated to Control Unit |
| Power Supply |
85 to 265 V AC, 50/60Hz or 10 to 72 V DC
10 W max power consumption |
| Enclosure |
19" sub rack unit
Dimensions 132 x 483 x 375mm (h x w x d)
100mm minimum clearance depth for cables and vents |
| Operating Environment |
Indoor, safe area, 0 to +50°C, < 90% RH |
| Premium Sampling System |
|
| Enclosure |
304 stainless steel (EN1.4301) enclosure
Option for complete enclosure in 316 stainless steel (EN1.4401)
All fixtures stainless steel
Galvanised steel internal mounting plate
Open panel version available for indoor installation
Dimensions 800 x 600 x 300mm (h x w x d) |
| Enclosure Mounting |
Stainless steel wall mounting brackets |
| Enclosure Ingress Protection |
IP66 |
| Enclosure Temperature Control |
Heater/thermostat options for fixed set-point +20°C or adjustable set-point range 0 to control +50°C |
| Heater Power Supply |
110/120 or 220/240/255 V AC, 50/60 Hz.
Power consumption 100 W max |
| Operating Environment |
Shaded position, on or off shore, -20 to +40°C (-40 to +60°C max transient)
Enclosure cooling option recommended for climate ambient > +50°C |
| Sample Cooling Option |
Recommended for process fluid temperatures > +40°C
Plant water supply required ≤ +30°C |