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INSTALLATION
3
3.10 Install for energy measurement
The combination of the measured flow rate and a temperature difference over a heat/cold
producer/consumer can be used to determine the amount of energy used by that device. The
temperature difference can be measured with temperature transmitters, connected to the
signal converter. In this case, the temperature difference is determined by measuring the
temperature before and after the heat/cold producer/consumer.
Figure 3-32: Energy measurement of heat/cold producer/consumer
1 Installed small, medium or large sensor rail(s)
2 PT 100 temperature sensor with 4-20 mA transmitter, upstream of the heat/cold producer/consumer
3 PT 100 temperature sensor with 4-20 mA transmitter, downstream of the heat/cold producer/consumer
4 Observed heating or cooling object
5 TWS 9000 signal converter
INFORMATION!
Please find more detailed information in the following section.
3.10.1 Preparation of energy measurement
1 Install a flow measurement as described in the previous chapter.
2 Temperature sensors including 0(4)-20 mA transmitters should be used.
3 Connect the temperature sensors correctly according to the connection diagram ( refer to
Connection diagrams of inputs and outputs
Temperature sensors are available on site:
Make sure that the temperature sensors to be used, are available on site and/or installed
already at the measuring point. The specific type must be suitable for proper use with the 4...20
mA current input of the I/O connections of the signal converter.
50
on page 74).
www.process.honeywell.com
VERSAFLOW SONIC 1000/TWS 9000
34-VF-25-07 iss.2 GLO Nov 11 US
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