Easidew PRO I.S. User’s Manual
Michell Instruments
13
APPENDIX A
Appendix A
Technical Specifi cations
Product
Easidew PRO I.S. for Gases
Easidew PRO LQ I.S. for Liquids
Performance Specifi cations
Measurement range
–110 to +20°C dew point
–100 to +20°C dew point
0 to 1000 ppm
W
Accuracy
±1°C dew point (+20 to –60°C)
±2°C dew point (–60 to –110°C)
Response time
5 mins to T95 (dry to wet)
Repeatability
0.5°C dew point
Calibration
Traceable 13-point calibration and certi
fi
cate
Electrical Specifi cations
Output signal
4–20 mA (2-wire connection, current source); User con
fi
gurable over range
Output
Dew point or moisture content
Moisture content
Analog output scaled
range
Dew point:
–110 to +20°C or –100 to +20°C
Moisture content in gas:
0 to 3000 ppm
V
Non-standard:
mg/m
3
, lbs/MMSCF natural gas
Moisture content in liquid:
0 to 1000
ppm
W
Non-standard available upon request
Supply voltage
12–28 V DC
Load resistance
Max 250
Ω
@ 12 V (500
Ω
@ 24 V)
Current consumption
23 mA max, depending on output signal
Saturation constants
(for moisture in liquids
measurements only)
6-point look-up table for saturation constants
up to 1000 ppm
W
over the temperature
range 0 to +50°C; saturation constants for
10 common liquids can be programmed
into the Easidew PRO LQ I.S. via the
application software; alternatively the user
can program saturation constants manually
CE conformity
Approved
Operating Specifi cations
Operating temperature
-40 to +60°C
Compensated Temperature
Range
-20 to +50°C
NOTE: The transmitter accuracy statement is only valid for the temperature range: -20/+50°C
Storage Temperature
-40 to +60°C
Operating pressure
45 MPa (450 barg) maximum
Flow rate
1 to 5 Nl/min mounted in standard sampling block
0 to 10 m/sec direct insertion
0.1 to 0.3L/min through
Easidew sample block
0.1 to 1m/s direct insertion
Mechanical Specifi cations
Ingress protection
IP66 in accordance with standard BS EN 60529:1992; NEMA 4 protection in accordance with
standard NEMA 250-2003
Intrinsically safe area
certifi cates
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
C
CSA
US
:
Class I, Division I Groups A B C D, T4
Russian pattern approval
Russia (GOST-R), Kazakhstan (GOST-K)
Canadian pressure vessel
cert
C.R.N. — 11 Canadian provinces
Oxygen service
Optional
: cleaned for enriched oxygen
Housing material
316 stainless steel
Filter (sensor protection)
Standard:
Stainless steel sintered guard (for protection against
fi
ne particulate >80
μ
m)
Optional:
HDPE guard (for protection against
fi
ne particulate >10
μ
m)
Process connection and
material
316 stainless steel 5/8” — 18 UNF with bonded seal, G1/2” and 3/4” UNF adaptors available
(material certi
fi
cate to BS EN 10204 3.1 — see ‘
accessories and spare parts’ on product order
codes)
Weight
1.27kg
Electrical connections
Screw terminal via female M20 x 1.5mm gland
