It is important for utilities, universities and large industrial facilities with multiple buildings and large campuses to accurately monitor energy consumption. Submetering of commercial buildings also requires accurate metering of energy consumption. Repeatable, reliable flow measurement is a critical element in the implementation of these processes.

The SUPERtrol II (ST2) Flow Computer Family can be used in such applications for computation of heat flow, mass flow, energy rate & total, mass rate & total and corrected volume flow. The ST2 family of flow compters are compatible with all popular flowmeter types. The ST2 also offers advanced features such as data logging, communication, remote metering, alarming and control functions.

The following Application Note describes successful solutions utilizing the SUPERtrol II Family of Flow Computers.

A typical steam monitoring system consists of a flow meter, a static pressure meter, and an electronic flow computer.
Here the SUPERtrol II steam flow computer performs the necessary calculations needed to compute the steam energy and mass flow from the electrical signals it receives. Measured or computed parameters include uncompensated volume rate/total, mass rate/total, temperature, pressure, density, enthalpy, demand last hour and peak demand rate.

NEW Features For %RH and Conductivity
Added to ST2 ES762 Steam Computer
We added two new selectable uses for Auxiliary Input 4:

  1. 4-20mA conductivity for customers who have requested monitoring the conductivity of their condensate return.
  2. 4-20mA %RH for those customers who have requested monitoring of indoor or outdoor % relative humidity.

Customers have considered monitoring outdoor conditions of temperature and humidity as a means of comparing building performance to outdoor air conditions

We now offer the mL-HSW combination Temperature and Humidity (%RH) Transmitter to assist in this monitoring.
INTRODUCING mL-HSW Temperature and Humidity Sensor

  • Adjusted temperature and relative humidity sensor
  • 4-20mA temperature and 4-20mA relative humidity outputs
  • High analog output accuracy
  • High stability on analog outputs for relative humidity and temperature measurement
  • Independent 4-20mA outputs for humidity and temperature