Orthodyne Moisture Analyser & Dewpoint Transmitter
The Orthodyne digital Moisture Analyser are designed as compact, simple and reliable instruments, which will continuously monitor air dryer performance, compressed air quality and dry gas moisture, from ambient dewpoint levels to as low as -100°C.
The transmitter electronics take full advantage of state of the art microprocessor technology and offer many advanced intelligent features. With optional dual alarms, analog and digital outputs, the Orthodyne Dewpoint transmitters can be used as indicators, alarm units or controllers.
PROGRAMMABLE ALARM RELAYS OPTION
The two optional alarm relays can be independently programmed to switch at any dewpoint with variable hysteresis, which makes the transmitter ideally suited as an energy saving controller for desiccant dryers in “dewpoint demand” mode or safety cut off in process control, high power laser, etc. The status of the relays is shown on the display with flashing HI or LO indicators while displaying the dewpoint.
ANALOG AND DIGITAL OUTPUTS (OPTIONS)
Analog and digital outputs are isolated from the sensor. The analog current or voltage output can be programmed to span the full or a portion of the range and is linear to the selected engineering units. The RS-232 interfaces into the serial port of any PC or Mac, for a simple operation with any standard communications program.
USER FRIENDLY INTERFACE
The instrument is operated through a menu driven user interface consisting of a custom LCD display with optional backlight, and four push buttons.
The user can select from the following engineering units. Dewpoint in °C or °F, ppmv, g H2O/m3, lbs H2O/ million scf.
PRESSURE CORRECT FUNCTION
Results are displayed at sensor pressure or by pushing the Pressure Correct key at a user selectable alternate pressure, such as the line pressure.
SPAN CHECK IN THE FIELD
This field calibration procedure is fully automated and the user is prompted through a simple one minute procedure, which requires no additional equipment.
The instrument has indication for sensor open, short or electronic system failure, which can activate any of the alarm relays.
NIST / NPL TRACEABILITY OPTION
Certificates for NIST and NPL traceability are available upon request. Instruments can be recertified periodically at our laboratories
Some Global References
|Company||Type of analyser||Model||Measurements|
|Air Liquide (Singapore)||Nitrogen||AZ 8000||H2O|
|Air Liquide (Algeria)||Helium||AZ 8000||H2O|
|Mueck (Australia)||Argon||AZ 8000||H2O|
|Magreb Oxygene (Morocco)||Nitrogen||AZ 8000||H2O|
Orthodyne Dewpoint transmitters are used wherever the dewpoint in a gas is critical:
> Monitoring and control of air dryers
> Plastic dryers
> Welding and laser gases
> Petrochemical feedstock gases
> Natural gas
> Clean rooms
> Glove boxes
> Transformer and switch gear insulation gases
> Cryogenic gases
> Heat treating furnaces
> Industrial specialty gases
> & many more…
Discover which analyser(s) you need for your analytical requests. Check the application here !
|Type||High capacitance AI2 03|
|Dewpoint range||-100ºC to +20ºC|
|Capacitance||15 nF to 200 nF|
|Accuracy||± 2ºC from -100º to -20ºC|
|± 3ºC from -19º to +20ºC|
|Response time (For a step change|
from -40ºC to -60ºC)
|63% in 90 seconds
|90% in 450 seconds|
|Temperature range||- 10ºC to +70º C, non condensing|
|Sample Flow range||Static to 100 m/s (linear velocity at 1 atm)|
|Storage temperature||- 40ºC to +80º C, non condensing|
|SpanCheck||Sensor saturates at dewpoint above +20ºC|
|CONTROL UNIT SPECIFICATIONS|
|Input Resolution||0.1ºC dewpoint|
|Indicators||LCD with backlight, 3.5 digits and custom legends for units and mode, audio alert|
|Engineering units||Dewpoint in ºF and ºC, ppmv, gH2O/m3, lbs H2O/mm scf|
|Controls||4 push buttons, all settings stored in EEPROM|
|Output options||4-20mA, 0-24mA or voltage outputs, linear to selected engineering units, programmable span and range, 0.1ºC dewpoint resolution. RS-232, baud rate 9600, resolution 0.1ºC dewpoint|
|Isolation||Sensor is isolated from the power supply, analog output and RS-232|
|Alarm relays option||Two programmable alarm relays with programmable variable hysteresis, rated at 10A @240V. Failure indication programmable to trigger alarm relays.|
|Power requirements||100 - 240 VAC, 50 or 60 Hz, autoranging or by order 12VDC or 15-30VDC 0.5A|
|Connections||Pluggable screw terminal block|
|Temperature range of electronics||-10º to 50ºC|
|Pressure operating range: Standard||34 bar (500 psi)|
|Pressure operating range: Optional||340 bar (5000 psi)|
|Mechanical connections||14mm x 1.25 mm threads and 3/4”-16 threads (other threads available)|
|Electrical connections||Female BNC connector|
|Sensor cable||Coaxial cable (75 Ω with maximum capacitance of 50 pF/m)|
|Maximum cable length||914 m (3000 ft)|