Direct connection of the Moisture Sensor to Computer.

Simply set 4 to 20 ml A on the computer with the sensor in room air.

That's it! Shaw Automatic Calibration has entered accurate measurement from less
than one part per million of moisture up to room humidity, in dry air or gas over
the range of -80 I 0 degrees c dewpoint.

Note that there is no need for a hygrometer, that only two wires to the computer are
needed, and that Shaw sensors can easily be exchanged and calibrated in the
housing by the user with a guaranteed accuracy of better than one part per million
of moisture in dry air or gas.

• Range. -80 to 0 deg c. dew point. (0 to 6000 p.p.m moisture.)

• Type. SSDIRG In line 2 wire, 4-20 mA Dew point sensor.

• Accuracy. Guaranteed better than 1 part per million on dry air or gas. ;'~"

• Sensor Type. Shaw Grey Spot. Laboratory calibrated to 4-20 mA
  20 years life, Gold Plated with24 cts. gold filter, 2 years guarantee.

• Weather Proof Rating. IP65. Blue anodised finish.

• Dimensions. 64mm diameter. 170mm overall length.

• Weight. 370g. Resolution 0.01 mA

• Twisted Pair Lead. 20 mA. Length up to 1 KIll.

• Connection. Lemo 2 pin connector.

• Power Supply. From computer system. 18/30 volt dc. ScadalDCS

• Sample Pressure. To 10 bars, preferably llitre per minute flow to
  atmosphere which avoids errors due to pressure variations.

• Output. Fully isolated from process computer, acts as a current drain.
  4-20 mA proportional to dew point, on 2 way power lead.

• Order. sensor type SSDIRG