
ONICON Incorporated 727-447-6140
Page 17
www.onicon.com
SYSTEM-40 BTU MEASUREMENT SYSTEM
When properly installed, the temperature sensors will only measure the inlet and
outlet temperatures of the heat exchange circuit where the energy measurement
is being made. Before you install thermowells or direct insertion sensors, the
entire piping system should be flushed and free of debris.
3.4.1 Integral Mount Temperature Sensors - Direct Insertion Style
1/2 - 1" System-40 BTU Meters configured with direct insertion style are provided
with one sensor pre-installed in the flow sensor body. The second sensor must
be installed in the pipe opposite that of the flow sensor. The tapered sensors
are provided with an M10 threaded fitting and a flat sealing gasket. For standard
installations, an M10 x NPT (or flush) bushing is provided for use with a customer
supplied line size tee. The torque required to properly install the temperature
sensors is 4 lb/ft.
3.4 INSTALLING THE
TEMPERATURE SENSORS
BTU METER
SYSTEM-40
Made in USA
BTU/HR
49.50
1
2
3
4
5
6
7
8
CAUTION
The platinum RTD sensors provided with the System-40 are calibrated with
the attached cables. Altering these cable lengths will result in significant
measurement errors and void the meter calibration.
1. Return pipe
2.
Supply pipe
3. Temperature sensor installation kit
4. Fan coil unit or air handling unit
5.
RTD temperature sensor - provided by ONICON
6.
Sealing gasket - provided by ONICON
7.
M10 x NPT bushing OR flush busing - provided by ONICON
8.
Customer supplied line size tee