Hygrometers For Trace Moisture in Pure Gases
Made in United Kingdom. brand Michell, model Pura
International delivery to United Arab Emirates, Kuwait, Qatar, Saudi Arabia, Saudi Arabia, Bahrain, Oman and other Middle Eastern countries.
Our warehouses are located in UAE. Delivery to other countries (Europe, North and South America, Asia, Africa) is discussed individually.
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This small transmitter is a rugged dew-point sensor for the measurement of trace moisture in ultra-high purity gases.
Simple to use and install, the Pura features analog and digital outputs with optional I.S. approvals, plus there is a range of VCR process connections and electrical connections. A service exchange program is also available, reducing the cost of maintenance.
Applications
| Product | Pura 2-wire, 3-wire & Digital Transmitters | Pura I.S. Transmitter |
| Performance Specifications | ||
| Measurement Range | -120…-40 °Cdp (-184…-40 °Fdp); non-standard ranges available on request | |
| Accuracy | ±1 °C from -40 to -60 °Cdp (±1.8 °F from -40 to -76 °Fdp) ±2 °C from -60 to -100 °Cdp (±3.6 °F from -76 to -148 °Fdp) ±4 °C from -100 to -120 °Cdp (±7.2 °F from -148 to -184 °Fdp) (extrapolated) |
|
| Calibration | Traceable 7-point calibration certificate | |
| Electrical Specifications | ||
| Output Signal | 4…20 mA (2-wire connection, current source) 4…20 mA (3-wire connection, current sink) Pura M12: Modbus RTU over RS485 Pura 3-wire PUR-AOL-SEN-D: Michell Mnet digital |
4…20 mA (2-wire connection, current source) |
| Output | Dew point or moisture content (ppmV, ppbV) | |
| Analog Output Scaled Range | Dew point: -120…-40 °C (-184…-40 °F); Moisture content in gas: 0…127 ppmV | |
| Supply Voltage | Pura 2-wire/3-wire & Pura I.S.: 12…28 V DC Pura M12: 5…28 V DC (digital)* |
|
| Load Resistance | Max 250 Ω @ 14 V (500 Ω @ 24 V) | |
| Current Consumption | 23 mA max, depending on output signal | |
| Compliances | CE & UKCA | |
| Operating Specifications | ||
| Operating Temperature | -40…+60 °C (-40…+140 °F) | |
| Compensated Temperature Range | -20…+50 °C (-4…+122 °F) | |
| Storage Temperature | -40…+60 °C (-40…+140 °F) | |
| Operating Pressure | Minimum 10-7 Pa (10-9 torr); Maximum 24 MPa (240 barg / 3481 psig) | |
| Flow Rate | 1…5 Nl/min mounted in standard sampling block; 0…10 m/sec direct insertion | |
| Mechanical Specifications | ||
| Ingress Protection | IP66 in accordance with standard BS EN 60529:1992; NEMA 4 protection in accordance with standard NEMA 250–2003 Pura M12: IP65 |
|
| Intrinsically Safe Area Certificates | ATEX/UKCA: II 1 G Ex ia IIC T4 Ga (-20…+70 °C) IECEx: Ex ia IIC T4 Ga (-20…+70 °C) TR CU: 0Ex ia IIC T4 Ga (-20…+70 °C) cQPSus: Class I, Division 1, Groups A, B, C & D, T4 Class I, Zone 0, AEx ia IIC T4 Ga, Ex ia IIC T4 Ga Tamb +70 °C |
|
| Housing Material | 316 stainless steel | |
| Dimensions | Please refer to the dimensional drawings on page 4 of this datasheet | |
| Packaging | Pura Premium: Double bagged and sealed in UHP inert gas Pura OEM and Pura Sensor: Single bagged in 1000 gauge polythene All options: Shipped individually in a profiled cardboard carton Sensor version supplied with protective guard over sensor technology for transportation and handling |
|
| Process Connection | Pura Premium (PRM): 2 x 1/4” male VCR Pura OEM (OEM): 2 x 1/4” male VCR Pura Sensor (SEN): 1/2” male VCR |
|
| Weight | PRM and OEM versions: 450 g (0.99 lb) SEN version: 180 g (0.4 lb) |
|
| Electrical Connections | Pura: MiniDIN 43650 form C Pura M12: M12 5 Pin (A coded) |
MiniDIN 43650 form C |
| Mating Electrical Connectors | Mating connector supplied as standard Pura M12: Optional 0.8, 2, 5 meter (2.62, 6.56, 16.4 foot) M12 A coded connector/cable available |
|
| Diagnostic Conditions (factory programmed) | Sensor fault: 23 mA Under-range dew point: 4 mA Over-range dew point: 20 mA |
|
| Approved Galvanic Isolators | KFD0-CS-EX1.50P KFD0-CS-EX2.50P KFD2-STC4-EX1.H |
|
* Applicable on digital Modbus RTU output only
You can request the necessary certificates, documentation, instructions and user guide for Michell Pura using the special form.
You can buy Michell Pura in UAE at a price starting from По запросу $ in «Texair FZCO» by leaving a request on the website, by phone +441225535040 or by email rop@texairmeasure.ae. Michell Pura price are subject to change depending on exchange rates. We deliver instruments by transport companies in United Arab Emirates, Kuwait, Qatar, Saudi Arabia, Saudi Arabia, Bahrain and other Middle Eastern countries.
See also: Dew Point Sensors & Transmitters
