Veris Industries FSR Series Installation Manual page 17

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Route the RTD cables back to the flow meter and secure the cable so that it will not be
pulled on or abraded inadvertently. Replace the insulation on the pipe, ensuring that
the RTDs are not exposed to air currents.
Heat Tape
Heat Sink
Compound
Clean RTD Mounting
Area to Bare Metal Surface
Figure 3.11 - Surface Mount RTD Installation
Installation of Insertion RTDs
Insertion RTDs are typically installed through ¼ inch (6 mm) compression fittings
and isolation ball valves. Insert the RTD sufficiently into the flow stream such that a
minimum of ¼ inch (6 mm) of the probe tip extends into the pipe diameter. Only use
insertion (wetted) RTDs on pipes that are not insulated.
Mount RTDs within ±45 degrees of the side of a horizontal pipe. On vertical pipes the
orientation is not critical. Route the RTD cables back to the flow meter and secure the
cable so that it will not be pulled on or abraded inadvertently.
If the cables are not long enough to reach the meter, route the cables to an electrical
junction box and add additional cable from that point. Use three-wire shielded cable,
such as Belden® 9939 or equal, for this purpose.
Note: Adding cable adds to the resistance the meter reads and may have an effect on absolute
accuracy. If cable is added, ensure that the same length is added to both RTDs to minimize errors
due to changes in cable resistance.
Figure 3.12 - Insertion Style RTD Installation
Z205739-0D PAGE 17
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FSRxxxx SERIES
©2013 Veris Industries
INSTALLATION GUIDE
Wiring to Meter
After the RTDs have been mounted to the pipe, route the cable back to the meter
through the middle hole in the enclosure. Connect to the meter inserting the RTD
connector into the mating connector on the circuit board.
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ACN +Vo
www.astrodyne.com
PWC-15E
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0.15A
AC IN : 100-240VAC,50/60Hz
+15V / 0.3A
DC OUT :
R2807
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TUV
RoHS
C US
PRODUCT SERVICE
ACL
E167432
95 - 264 VAC
AC Neutral
Exc.
Sig.
Gnd.
Shield
Signal Gnd.
4-20 mA Out
Reset Total
Modbus Gnd
Modbus
Modbus B
TFX Rx
TFX Tx
Modbus A
Figure 3.13 - Connecting RTDs
Replacement RTDs
Complete RTD kits, including the energy meters plug-in connector and calibration
values for the replacements, are available from the manufacturer.
It is also possible to use other manufacturer's RTDs. The RTDs must be 1000 Ω
platinum RTDs suitable for a three-wire connection. A connection adapter is available
to facilitate connection to the meter. See Figure 3.14.
WHITE
PIN #8
BLACK
PIN #6 PIN #5
GREEN
PIN #4 PIN #3
BROWN
PIN #2 PIN #1
DRAIN
Figure 3.14 - RTD Adapter Connections
Note: It will be necessary to calibrate third party RTDs to the meter for proper operation. See the
Appendix of this manual for the calibration procedure.
Exc.
SUPPLY LINE
RTD #1
Sig.
Gnd.
RTD's
Shield
RETURN LINE
RTD #2
RED RTD2
RTD1
BLUE
WHITE PIN#5
BLACK PIN#3
RED PIN#1
DRAIN PIN#8
GREEN PIN#6
BLUE PIN#4
BROWN PIN#2
05131