The dew point is calculated from the amount of oxygen measured in the furnace. The unique sensor manufactured by Novatech uses a catalyst that attracts oxygen molecules in the same way as the surface of the steel does inside the furnace.
Using the Novatech 1738 is easy and convenient
- Simply enter the percentage of hydrogen used by the furnace.
- Very low maintenance and re-calibration
- Two fully programmable isolated 4-20mA outputs
- Built in Modbus™ slave protocol and RS-485 networking
Dual sensors provides redundancy to prevent costly shutdowns if a probe failure occurs
The Novatech 1738 Dew Point Transmitter accepts inputs from two sensors, averaging the two readings, or providing separate 4-20mA outputs for each sensor. In case of either one of the sensors failing, the transmitter warns the operator and locks onto the remaining sensor so that the process can continue to operate.
The Novatech 1738 tells you what’s happening
Plant operators are alerted to failure of the probe by a plain English message on the transmitter’s LCD display. There are 30 probe and transmitter alarms, plus 4 process alarms. The upper line display indicates: Oxygen %. Auto-ranging from 1 x 10-30% to 100% oxygen.