Onicon SYSTEM-20 Operating instructions
ON
I
CON
Flow and Energy Measurement
SYSTEM-20SYSTEM-20
BTU METERBTU METER
INSTALLATION AND OPERATION GUIDEINSTALLATION AND OPERATION GUIDE
DOC-0003557 Rev.B
For Software Version 0.1.15 and Higher
ONICON Incorporated 727-447-6140 Page 2 www.onicon.com
SYSTEM-20 BTU METER
SAFETY
INFORMATION
This meter was calibrated at the factory before shipment. To ensure correct use of the
meter, please read this manual thoroughly. Regarding this Manual:
• This manual should be passed on to the end user.
• Before use, read this manual thoroughly to comprehend its contents.
• The contents of this manual may be changed without prior notice.
• All rights reserved. No part of this manual may be reproduced in any form without
ONICON’s written permission.
• ONICON makes no warranty of any kind with regard to this material, including, but
not limited to, implied warranties of merchantability and suitability for a particular
purpose.
•
manual. However, if any errors are found, please inform ONICON.
• ONICON assumes no responsibilities for this product except as stated in the
warranty.
• If the customer or any third party is harmed by the use of this product, ONICON
assumes no responsibility for any such harm owing to any defects in the product
which were not predictable, or for any indirect damages.
SAFETY PRECAUTIONS:
The following general safety precautions must be observed during all phases of
installation, operation, service, and repair of this product. Failure to comply with
safety standards of design, manufacture, and intended use of the product. ONICON
Incorporated assumes no liability for the customer’s failure to comply with these
protection provided by this product may be impaired. The following messages are used in
this manual:
WARNING (1)
Messages identied as “Warning” contain information regarding the personal safety
of individuals involved in the installation, operation or service of this product.
CAUTION (2)
Messages identied as “Caution” contain information regarding potential damage
to the product or other ancillary products.
IMPORTANT NOTE (3)
Messages identied as “Important Note” contain information critical to the proper
operation of the product.
See pages 46 through 48 for French Translations of all WARNINGS, CAUTIONS and
IMPORTANT NOTES.
IMPORTANT NOTES.
Voir page 46 par 48 pour les traductions en français de tous les AVERTISSEMENTS,
MISES EN GARDE ET REMARQUES IMPORTANTES.
ONICON Incorporated 727-447-6140 Page 3 www.onicon.com
SYSTEM-20 BTU METER
TABLE OF CONTENTS
1.0 INTRODUCTION .....................................................................................................................................................................................5
.................................................................................................................................................... 5
1.2 TYPICAL SYSTEM-20 BTU METER ......................................................................................................................................5
1.3 STANDARD FEATURES AND SPECIFICATIONS........................................................................................................... 5
.............................................................................................................................6
..................................................................................................................................................6
........................................................................................................................................7
..........................................................................................................................................................................................7
........................................................................................... 7
3.0 INSTALLATION ....................................................................................................................................................................................... 8
3.1 SITE SELECTION .........................................................................................................................................................................8
3.2 MECHANICAL INSTALLATION ......................................................................................................................... 9
3.2.1 Mounting the Enclosure ................................................................................................................................. 10
3.2.2 Thermowell Installation.................................................................................................................................. 11
3.2.2.1 Standard Thermowells .............................................................................................. 11
3.2.2.2 Hot Tap Thermowells ................................................................................................ 11
3.2.3 Temperature Sensor Installation ................................................................................................................... 13
3.2.3.1 ONICON STANDARD TEMPERATURE SENSOR INSTALLATION....................................... 13
3.3 ELECTRICAL INSTALLATION ..............................................................................................................................................15
3.3.1 Power and Signal Wiring Connections.......................................................................................................... 16
3.3.2 Pulse Input and Output Wiring Connections ............................................................................................... 18
3.3.3 Analog Output and Serial Communication Wiring Connections ............................................................... 18
3.3.4 Temperature Sensor Wiring Connections ..................................................................................................... 19
3.3.5 Temperature Input Wiring Details ................................................................................................................. 20
4.0 SYSTEM- .......................................................................................................................... 21
4.1 START UP .....................................................................................................................................................................................21
4.1.1 Single and Dual Mode Display Pages ........................................................................................................... 22
4.1.2 Additional Display Pages................................................................................................................................ 23
...................................................................................................................................................................24
4.2.1 Commissioning Following Initial Power-up ................................................................................................. 24
............................................................................................................................................................26
4.3.1 Changing RS485 Settings or Meter Programming After Commissioning............................................... 27
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SYSTEM-20 BTU METER
.............................................................................................................................................................. 28
6.0 BACNET®MS/TP............................................................................................................................................. 29
6.1 BACNET®OBJECT TYPES..................................................................................................................................................... 29
6.2 PROTOCOL IMPLEMENTATION STATEMENT ............................................................................................................29
6.3 DEVICE OBJECT ....................................................................................................................................................................... 30
(S).................................................................................................................................................................31
(S).................................................................................................................................................................31
6.6 BINARY VALUE(S)...................................................................................................................................................................33
6.7 MULTI STATE VALUE...............................................................................................................................................................34
.........................................................................................................................................................35
7.0 MODBUS®........................................................................................................................................................................................ 35
7.1 MODBUS®MEMORY MAP ................................................................................................................................................. 36
.......................................................................................................................................43
7.3 REPORT SLAVE ID FUNCTION CODE .............................................................................................................................45
(
IMPORTANTES) .........................................................................................................................................................................................46
ONICON Incorporated 727-447-6140 Page 5 www.onicon.com
SYSTEM-20 BTU METER
SECTION 1.0
INTRODUCTION
The purpose of this guide is to provide installation and commissioning procedures, and
basic operating and servicing instructions for the ONICON SYSTEM-20 BTU Meter.
WARNING (4)
Only qualied service personnel should attempt to install or service this product.
Serious injury may result from the improper installation or use of this product.
ONICON’s System-20 is a true heat (Btu) computer, which accepts data from several
sensors, performs a series of computations with that data, and displays and/or transmits
the results as an indication of the amount of heat (Btus) being transferred per unit time or
as a totalized amount.
1.1 PURPOSE OF THIS GUIDE
1.2 TYPICAL SYSTEM-20
BTU METER
SUPPLY
RETURN
HEAT
EXCHANGER
BTU METER
SYSTEM-20
Made in USA
BTU/HR
49.50
1
3
FLOW
4
5
6
2
1. Class II Inpu Power 20-28 AC/DC, 50/60 Hz
2. Input and Output Signals - Three (3) pulse iinputs,
three (3) pulse outputs, one (1) analog output
3. RS485 BACnet or MODBUS
4.
5. Return Temperature Sensor
6. Supply Temperature Sensor
1.3 STANDARD FEATURES
AND SPECIFICATIONS
• Single mode Btu calculations, in either the heating or cooling mode, are
totalized, and displayed.
• Two-pipe dual mode Btu calculations in both the heating mode and the
cooling modes, are totalized and displayed.
• A single isolated RS485 serial interface is provided for BACnet®MS/TP or
MODBUS®RTU.
•
indication and mode status.
• Three auxiliary pulse inputs may be used to totalize data from external
devices. This data may also be transmitted via the network interface and
viewed on the local display.
•
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SYSTEM-20 BTU METER
1.4 ADDITIONAL REQUIRED
HARDWARE
matched pair of temperature sensors in order to calculate and report heat data.
Flow Meter Model Line Sizes Straight Run
Required Notes
F-1100 Single Turbine Insertion Flow Meter 1 ¼" and larger 25 Can be used in 1"
copper lines
F-1200 Dual Turbine Insertion Flow Meter 2 ½" and larger 15
F-11XX Inline Turbine Flow Meter ¾" and 1" 25
F-3500 Insertion Electromagnetic Flow Meter 1 ¼" and larger See manual
FT-3100 and F-3200 Inline Electromagnetic Flow Meters ¼" and larger 5
F-4300 Clamp-on Ultrasonic Flow Meter 2" and larger See manual
F-4600 Inline Ultrasonic Flow Meter ½" - 2 ½" See manual
Temperature/Sensors
ONICON Standard Temperature Sensors (32°F – 200° F)
Pair of solid state temperature sensors with 0 – 20 mA outputs. Suitable for use
Platinum RTD Temperature Sensors (32°F – 250° F)
Please refer to ONICON’s System-20 product literature, or contact ONICON for
requirements.
The System-20 was designed for installation and use in typical domestic and
commercial environments that are free of corrosive liquids and fumes, direct
liquid exposure, temperature extremes and vibrations.
power should be relatively clean, free of high frequency noise, large voltage
transients, and protected from power surges and brown outs.
CAUTION (5)
The System-20 battery cannot be retrotted or replaced. Risk of re
explosion, and burns. DO NOT recharge, disassemble, crush, heat above
212°F (100°C) or incinerate. Please check your local ordinances for
information concerning battery disposal.
IMPORTANT NOTE (6)
The System-20 may be installed outdoors in protected spaces away from
direct sunlight, rain, sleet or snow.
1.5 WORKING ENVIRONMENT
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SYSTEM-20 BTU METER
1.6 SERIAL NUMBER The serial number of your System-20 is located on the top and inside the
this number available when contacting ONICON for assistance.
SECTION 2.0
UNPACKING
The System-20 is generally shipped in one package unless optional hardware or
equipment is ordered. (Thermowells may have been shipped in advance.)
Please notify ONICON immediately if any of these items are missing.
Standard Documentation Includes:
The System-20
Remove the System-20 from the shipping carton and inspect it for physical
damage. Notify the freight carrier and ONICON immediately if any items are
damaged in transit. Save all packaging.
Temperature Sensors
If ordered, temperature sensors will generally be packed in the same carton with
the System-20. Inspect the sensors and cables for damage. Each sensor will have
a label attached with a serial number.
Flow Meter
ordered with this Btu meter came complete with an instruction manual. Please
refer to it for detailed information regarding its installation, commissioning, and
operation.
Flow Meter & Temperature Sensor Installation Hardware
Installation hardware is ordered separately from the System-20, temperature
of the meter(s).
2.1 CHECKING THAT YOU HAVE
RECEIVED EVERYTHING
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SYSTEM-20 BTU METER
SECTION 3.0
INSTALLATION
3.1 SITE SELECTION
The System-20 BTU Meter should be installed by personnel with related
ONICON is available to assist with technical recommendations and to provide
guidance by telephone and/or e-mail during the installation and commissioning
additional cost. The installer should use good trade practices and must adhere to
all state and local building codes.
Before you begin, clean the external surfaces of all pipes at the installation
sites so that they are free of debris, foreign matter, solids, leak inhibitors, and
solder, pipe and tube cuttings and any other debris.
Careful attention to the site selection for the system components will help ensure
an accurate energy measurement, help the installers with the initial installation,
reduce start-up problems, and make future maintenance easier. For example,
IMPORTANT NOTE (7)
Proper site selection is critical to the performance of this Btu meter. Both the
ow sensor and the temperature sensors must be properly located within the
piping system in order to ensure an accurate energy measurement.
The System-20
free surface. Avoid locations such as the plenum of a fan coil, heat exchanger or
any housing that may contain electric motors or other strong sources of electrical
interference.
The Flow Meter
that portion of the piping system for which the energy measurement is being
the location with the longest straight run of unobstructed pipe. Please refer to
The Temperature Sensors
The two temperature sensors must be located so they accurately measure only
the temperature of the supply line entering and the return line leaving the
portion of the piping system for which the energy measurement is being made.
performance of the sensors.
One temperature sensor thermowell will need to be placed in the same pipe with
without interference from the other sensor.
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SYSTEM-20 BTU METER
IMPORTANT NOTE (8)
The components of the ONICON System-20 BTU Measurement System
must be congured, programmed and installed together as a system.
Mixing components from dierent systems may result in signicant
measurement errors.
Find an easily accessible location where electrical connections can be made
Mount the Btu meter on a vibration-free surface. Avoid sites such as the
plenum of a fan coil, heat exchanger, or other housings containing motors.
The meter must be installed in protected spaces away from direct
sunlight, rain, sleet or snow.
3.1 MECHANICAL
INSTALLATION
7 5/8"
5 1/2"
5"
∅0.875" 5pl
∅0.200" 4pl
SYSTEM-20
BTU METER
7 5/8"
5 1/2"
5"
∅0.875" 5pl
∅0.200" 4pl
SYSTEM-20
BTU METER
7 5/8"
5 1/2"
5"
∅0.875" 5pl
∅0.200" 4pl
SYSTEM-20
BTU METER
CAUTION (9)
DO NOT drill holes in the enclosure. Use only the openings that are provided.
IMPORTANT NOTE (10)
Bonding between conduit connections is not automatic and shall be provided
as part of the installation.
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SYSTEM-20 BTU METER
3.2.1 Mounting the Enclosure
Use four screws for mounting the Btu meter. The mounting surface must be
structurally sound and capable of withstanding a minimum weight of 40 lbs (18 kg).
Use the following screws for mounting.
• Four Machine screws - #10-24 X 1.5”
•
• Four Concrete screws - 3/16” X 1.5” with ¼" maximum hex, Phillips or slot
heads
Four mounting holes have been provided in the base of the enclosure shown
below. Push out the rubber seals by inserting the mounting screws. Use the
drilling template provided in Appendix 5 of this manual to drill the 4 holes
required to mount the enclosure.
A DIN rail mounting hardware kit has
been provided with this meter. Mount
the DIN rail clips as shown.
CAUTION (11)
DO NOT USE THE ENCLOSURE AS A TEMPLATE FOR DRILLING HOLES. Do not
drill holes in the enclosure. Use only the openings that are provided.
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SYSTEM-20 BTU METER
3.2.2 Thermowell Installation
IMPORTANT NOTE (12)
It is important that no dirt or other foreign material be allowed into the
thermowells as this could aect the thermal response of the system.
3.2.2.1 Standard Thermowells
Standard thermowells are for new construction or scheduled
shutdown. The most common installation methods are shown below.
Refer to Appendix A-6 for thermal insulator installations. Consult
ONICON for special applications.
ONICON furnished
Junction Box
ONICON furnished
bushing with
1/2" NPT outlet
Customer supplied
threaded tee
(outlet size = line size)
1/2" NPT
ONICON Furnished
1" Sweat x 1/2" NPT
Flush Bushing
ONICON furnished
Junction Box
ONICON Furnished
Copper Tee With
1" Outlet
ONICON Furnished
1/2" NPT Welded
Branch Outlet
5/8" Minimum
Hole Size
ONICON furnished
Junction Box
Copper Tee Threaded Tee Welded Pipe
NOTES: 1. Thermowell length varies with pipe size.
2. Use no additional bushings to ensure that tip of thermowell is inserted
3.2.2.2 Hot Tap Thermowells
practical to isolate and drain the pipe section prior to installation. The
thermowell is installed through a 1” full port ball valve as shown in the
drill is required to perform this type of installation.
Install the valve assembly as shown in the drawing on the next page
the valve assembly has been installed and the hole has been drilled,
shutdown.
WARNING (13)
SYSTEM MAY BE UNDER HIGH PRESSURE. Hold the conduit box rmly by hand
before slowly loosening the position clamping nut when installing, adjusting
or removing the thermowell. Failure to do this will allow the pressure to
suddenly and rapidly force the thermowell from the pipe, potentially causing
serious injury. The thermowell could also be damaged or break apart causing
a break in the water seal resulting in the loss of large amounts of water.
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SYSTEM-20 BTU METER
Insertion of the Hot Tap Thermowell
1. Calculate the insertion force (lbs) required by multiplying the system pressure
(psig) by 0.11. The person inserting the thermowell should ensure adequate
footing for the force required prior to opening the valve.
2. After applying thread seal tape, thread the hot tap adapter into the valve.
Firmly grasp the wiring enclosure, loosen the position clamping nut, open
attached gauge to set the insertion depth.
CAUTION (14)
Excessive vibration can damage the thermowell. Insert the thermowell to the
proper depth using gauge supplied as shown. Reduce the insertion depth as
necessary if strong vibrations are felt during insertion, making certain that
the tip of the thermowell remains fully in the ow stream.
Carefully tighten the position clamping nut that is located at the top of the 1"
clamping nut has been tightened.
CAUTION (15)
DO NOT OVER TIGHTEN THE POSITION CLAMPING NUT. If uid leaks, do
not attempt to correct by tightening this nut further. An internal o-ring seals
the uid. Contact ONICON for assistance in the event of a leak.
7/8” DIA MIN
HOLE SIZE
WITHDRAWAL
STOP
1” NPT WELDED
BRANCH OUTLET
1” CLOSE
NIPPLE
1” FULL PORT
BALL VALVE
HOT TAP ADAPTER
“O” RING SEAL
POSITION CLAMPING NUT
(DO NOT OVERTIGHTEN)
5-1/2”
THERMOWELL SHOWN WITHDRAWN
INTO HOT TAP ADAPTER
NON-REMOVABLE
CONDUIT BOX
INSTALLATION KIT COMPONENTS
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SYSTEM-20 BTU METER
Removal of the Hot Tap Thermowell
WARNING (16)
Maintain a rm hold on the wiring enclosure until the thermowell is
completely withdrawn and the valve is closed.
1.
when the clamping nut is released. Be sure to establish safe footing prior to
loosening the clamping nut. The force pushing out against the thermowell is
the same as the insertion force.
2.
then loosen the position clamping nut. Slowly withdraw the thermowell from
the pipe.
3. After the thermowell is completely withdrawn, carefully close the isolation
valve.
IMPORTANT NOTE (17)
Rotating the thermowell as you slowly withdraw it through the valve will
ensure that the lower tip is fully withdrawn and completely free of the valve.
If resistance is felt when closing the valve, open valve fully and rotate the
well as you pull it further out of the pipe.
3.2.3 Temperature Sensor Installation
sensors are also designated and labeled as the SUPPLY or RETURN sensor and
must be installed per these labels.
3.2.3.1 ONICON Standard Temperature Sensor Installation
ONICON standard temperature sensors must be used as a pair to
the SUPPLY or RETURN sensor and must be installed accordingly. To
install, apply a thin coat of thermal compound to the sensor tip area and
insert it all the way into the thermowell until it contacts the bottom of
thermowell completely seals the plumbing system without the retainer
nut. The only purpose for the nut is to ensure that the sensor tip will
remain in contact with the bottom of the thermowell.
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SYSTEM-20 BTU METER
TEMPERATURE
SENSOR
PLASTIC
END PIECE
SPACER SLEEVE
(Length varies with
thermowell length)
ELECTRONICS
MODULE
SUPPLY
S/N 123456
SIGNAL (RED)
REFERENCE (BLACK)
TEMPERATURE SENSOR
TEMPERATURE SENSOR INSTALLED IN THERMOWELL
SIGNAL (RED)
REFERENCE
(BLACK)
SUPPLY
S/N 123456
PROVIDE 18-22 GA TWISTED
SHIELDED PAIR.
COIL ONE FOOT OF EXTRA
CABLE IN CONDUIT BOX.
1/2” NPT WELDED
BRANCH OUTLET
PLACE ELECTRONICS
MODULE IN BOX AFTER
CONNECTING WIRES
5/8” MINIMUM
HOLE SIZE
1/2” HOLE FOR
CONDUIT OR
STRAIN RELIEF
FITTING
CAUTION (18)
DO NOT OVERTIGHTEN. The thermowell completely seals the plumbing
system. Screwing in the sensor just ensures that the sensor tip will remain in
contact with the bottom of the thermowell.
ONICON Incorporated 727-447-6140 Page 15 www.onicon.com
SYSTEM-20 BTU METER
The System-20 is provided with three ¾" conduit openings along the bottom
of the enclosure for power and signal cables. Two openings are provided with
knockout seals. The power cable should enter the enclosure through the right
hand opening. Do not remove the seals from unused openings. To access the
wiring connections, remove the two cover screws shown below.
3.3 ELECTRICAL INSTALLATION
AC/DC POWER IN
1 2 3 4 5 6
AUX POWER OUT
(A)
(A)
(B)
(B)
(A)
(A)
(B)
(B)
2 4
WIRE
1
TB5 TEMPERATURE
2 3 4 5
RS485+
RS485-
RS485COM
SHIELD
IN 1 (+)
IN 1 (-)
IN 2 (+)
IN 2 (-)
IN 3 (+)
IN 3 (-)
OUT 1 (+)
OUT 1 (-)
4-20mA OUT (+)
4-20mA COM (-)
0-10V OUT (+)
0-10V COM (-)
1
TB1 RS-485
234 1 2 3451 2 3451 2 34
1 2 3 4 1 2 3 4 1 2 3 1 2 3 4 5
TB6 RTD SUP TB7 RTD RET TB8 TURB TB9 FLOWMETER
TB2 PULSE IN
6 6
TB 3 PULSE OUT TB4 ANA OUT
SUPTEMP (+)
SUPTEMP (-)
SHIELD
RETTEMP (+)
RETTEMP (-)
24VTURB
OUT 2 (+)
OUT 2 (-)
OUT 3 (+)
OUT 3 (-)
TURB FREQ
TURBCOM
24 VDC (+)
4-20mA IN
FREQ IN
SIG COMM
24 VDC (-) EARTH
24V N (-)
24V L (+)
EARTH
24V N (-)
24V L (+)
24V ONLY
!
JMP1 RS485 LOAD
TERMINATED UNTERMINATED
TB10
2 4
WIRE
2 4
WIRE
2 4
WIRE
JP3 J2
COVER SCREWS
WARNING (19)
Disconnect main power before proceeding.
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SYSTEM-20 BTU METER
3.3.1 Power and Signal Wiring Connections
AC/DC POWER IN
1 2 3 4 5 6
AUX POWER OUT
(A)
(A)
(B)
(B)
(A)
(A)
(B)
(B)
2 4
WIRE
1
TB5 TEMPERATURE
2 3 4 5
RS485+
RS485-
RS485COM
SHIELD
IN 1 (+)
IN 1 (-)
IN 2 (+)
IN 2 (-)
IN 3 (+)
IN 3 (-)
OUT 1 (+)
OUT 1 (-)
4-20mA OUT (+)
4-20mA COM (-)
0-10V OUT (+)
0-10V COM (-)
1
TB1 RS-485
2 3 4 1 2 3 4 5 1 2 3 4 5 1 2 3 4
1 2 3 4 1 2 3 4 1 2 3 1 2 3 4 5
TB6 RTD SUP TB7 RTD RET TB8 TURB TB9 FLOWMETER
TB2 PULSE IN
6 6
TB3 PULSE OUT TB4 ANA OUT
SUPTEMP (+)
SUPTEMP (-)
SHIELD
RETTEMP (+)
RETTEMP (-)
24VTURB
OUT 2 (+)
OUT 2 (-)
OUT 3 (+)
OUT 3 (-)
TURB FREQ
TURBCOM
24 VDC (+)
4-20mA IN
FREQ IN
SIG COMM
24 VDC (-) EARTH
24V N (-)
24V L (+)
EARTH
24V N (-)
24V L (+)
24V ONLY
!
JMP1 RS485 LOAD
TERMINATED UNTERMINATED
TB10
2 4
WIRE
2 4
WIRE
2 4
WIRE
JP3 J2
1 2 3
TB8 TURB
3. (-) SUPPLY COMMON (BLACK)
2. (+) FREQUENCY (GREEN)
1. (+) 24 VDC SUPPLY (RED)
1 2 3
TB9
FLOWMETER
5. (-) 24 VDC (BLACK)
4. SIGNAL COMMON
3. FREQUENCY IN
45
1 2 3
TB10
POWER INPUT
6. EARTH GROUND
5. (-) N
4. (+) L
45
2. 4-20 mA IN
1. (+) 24 VDC (RED)
6
3. EARTH GROUND
2.
1. (+) L
(-) N
SYS-20 AC/DC
POWER IN
1
2
3
4
5
1. This terminal block is ONLY for use with ONICON F-1000 Series
Turbine Flow Meters.
2. Voltage output for use with non-ONICON Flow Meters - 24VDC @
50 mA maximum.
3.
4. Class II power supply requirements:
20 - 28 V AC/DC, 50 / 60 Hz
500 mA DC or 1A AC total input current.
5.
Series.
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SYSTEM-20 BTU METER
WARNING (20)
The System-20 must be connected to earth ground for proper operation.
Failure to do so may result in erratic operation.
CAUTION (21)
Minimum temperature rating of the cable to be connected to the eld wiring
terminals, 140°F (60°C).
IMPORTANT NOTE (22)
The System-20 shall be used with an external Class II power supply.
Flow
Meters with
Frequency
Output
Models System-20
Terminal # Signal Input to System-20 System-20
Terminal #
Power Output to Flow
Meters
F-1000 Series TB8-2 TB8-1
TB8-3
(+) 24 VDC Supply (Red)
(-) Supply Common (Black)
F-3500 Series
FSM-3 Series
FT-3100 Series
F-3200 Series
Non-ONICON
Meters
TB9-3
TB9-4
TB2-5
TB2-6
TB10-4 (+) 24 VAC/DC
(-) Signal Common (Yellow) TB10-5 (-) 24 VAC/DC
(+) Direction (bi-directional)
(Orange/ Black) TB10-6
(-) Direction (bi-directional)
Flow Meters
with Active
Analog
Output
Models System-20
Terminal # Signal Input to System-20 System-20
Terminal #
Power Output to Flow
Meters
F-4300 Series
F-4600 Series
* F-1500 Series
* F-2000 Series
Non-ONICON
Meters
TB9-2
TB9-4
TB2-5
TB2-6
(+) 4-20 mA (Blue) TB10-4 (+) 24 VAC/DC
(-) Signal Common (Brown) TB10-5 (-) 24 VAC/DC
(+) Direction (bi-directional
switch/ contacts) TB10-6
(-) Direction (bi-directional
switch/ contacts)
* Requires external input powers
Flow Meters
with Loop
Power/
Passive
Analog
Output
Models System-20
Terminal # Signal Input to System-20
* F-1500 Series
* F-2000 Series
TB9-1
TB9-1
(+) 24 VDC
(+) 4-20 mA
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SYSTEM-20 BTU METER
3.3.2 Pulse Input and Output Wiring Connections
AC/DC POWER IN
1 2 3 4 5 6
AUX POWER OUT
(A)
(A)
(B)
(B)
(A)
(A)
(B)
(B)
2 4
WIRE
1
TB5 TEMPERATURE
2 3 4 5
RS485+
RS485-
RS485COM
SHIELD
IN 1 (+)
IN 1 (-)
IN 2 (+)
IN 2 (-)
IN 3 (+)
IN 3 (-)
OUT 1 (+)
OUT 1 (-)
4-20mA OUT (+)
4-20mA COM (-)
0-10V OUT (+)
0-10V COM (-)
1
TB1 RS-485
2 3 4 1 2 3 4 5 1 2 3 4 5 1 2 3 4
1 2 3 4 1 2 3 4 1 2 3 1 2 3 4 5
TB6 RTD SUP TB7 RTD RET TB8 TURB TB9 FLOWMETER
TB2 PULSE IN
6 6
TB3 PULSE OUT TB4 ANA OUT
SUPTEMP (+)
SUPTEMP (-)
SHIELD
RETTEMP (+)
RETTEMP (-)
24VTURB
OUT 2 (+)
OUT 2 (-)
OUT 3 (+)
OUT 3 (-)
TURB FREQ
TURBCOM
24 VDC (+)
4-20mA IN
FREQ IN
SIG COMM
24 VDC (-) EARTH
24V N (-)
24V L (+)
EARTH
24V N (-)
24V L (+)
24V ONLY
!
JMP1 RS485 LOAD
TERMINATED UNTERMINATED
TB10
2 4
WIRE
2 4
WIRE
2 4
WIRE
JP3 J2
1 2 3
TB3
PULSE OUTPUT
6 - (-) PULSE OUT 3
5 - (+) PULSE OUT 3
4 - (-) PULSE OUT 2
4 5 6
3 - (+) PULSE OUT 2
2 - (-) PULSE OUT 1
1 - (+) PULSE OUT 1
1 2 3
TB2
PULSE INPUT
6 - (-) PULSE IN 3
5 - (+) PULSE IN 3
4 - (-) PULSE IN 2
456
3 - (+) PULSE IN 2
2 - (-) PULSE IN 1
1 - (+) PULSE IN 1
1
2
AC/DC POWER IN
1 2 3 4 5 6
AUX POWER OUT
(A)
(A)
(B)
(B)
(A)
(A)
(B)
(B)
2 4
WIRE
1
TB5 TEMPERATURE
2 3 4 5
RS485+
RS485-
RS485COM
SHIELD
IN 1 (+)
IN 1 (-)
IN 2 (+)
IN 2 (-)
IN 3 (+)
IN 3 (-)
OUT 1 (+)
OUT 1 (-)
4-20mA OUT (+)
4-20mA COM (-)
0-10V OUT (+)
0-10V COM (-)
1
TB1 RS-485
2 3 4 1 2 3 4 5 1 2 3 4 5 1 2 3 4
1 2 3 4 1 2 3 4 1 2 3 1 2 3 4 5
TB6 RTD SUP TB7 RTD RET TB8 TURB TB9 FLOWMETER
TB2 PULSE IN
6 6
TB3 PULSE OUT TB4 ANA OUT
SUPTEMP (+)
SUPTEMP (-)
SHIELD
RETTEMP (+)
RETTEMP (-)
24VTURB
OUT 2 (+)
OUT 2 (-)
OUT 3 (+)
OUT 3 (-)
TURB FREQ
TURBCOM
24 VDC (+)
4-20mA IN
FREQ IN
SIG COMM
24 VDC (-) EARTH
24V N (-)
24V L (+)
EARTH
24V N (-)
24V L (+)
24V ONLY
!
JMP1 RS485 LOAD
TERMINATED UNTERMINATED
TB10
2 4
WIRE
2 4
WIRE
2 4
WIRE
JP3 J2
1 2 3
TB4
ANALOG OUTPUT
4. (-) 0-10 V COMMON
4
3. (+) 0-10 V OUT
2. (-) 4-20 mA COMMON
1. (+) 4-20 mA OUT
1 2 3
TB1
RS485 OUTPUT
4. SHIELD
4
3. RS485 COMMON
2. (-) RS485
1. (+) RS485
1 - 2 = 120 Ω
JMP1
RS485 TERMINATION
2 - 3 = NON TERMINATED
1
1. Maximum 30 V, 50 mA Pulse duration: 50, 100, 500 or 1000 ms
2. For use with devices providing sinking open collector or dry contact outputs.
3.3.3 Analog Output and Serial Communication Wiring Connections
1.
ONICON Incorporated 727-447-6140 Page 19 www.onicon.com
SYSTEM-20 BTU METER
3.3.4 Temperature Sensor Wiring Connections
AC/DC POWER IN
1 2 345 6
AUX POWER OUT
(A)
(A)
(B)
(B)
(A)
(A)
(B)
(B)
2 4
WIRE
1
TB5 TEMPERATURE
2 3 4 5
RS485+
RS485-
RS485COM
SHIELD
IN 1 (+)
IN 1 (-)
IN 2 (+)
IN 2 (-)
IN 3 (+)
IN 3 (-)
OUT 1 (+)
OUT 1 (-)
4-20mA OUT (+)
4-20mA COM (-)
0-10V OUT (+)
0-10V COM (-)
1
TB1 RS-485
234 1 2 3451 2 3451 2 34
1 2 3 4 1 2 3 4 1 2 3 1 2 3 4 5
TB6 RTD SUP TB7 RTD RET TB8 TURB TB9 FLOWMETER
TB2 PULSE IN
6 6
TB3 PULSE OUT TB4 ANA OUT
SUPTEMP (+)
SUPTEMP (-)
SHIELD
RETTEMP (+)
RETTEMP (-)
24VTURB
OUT 2 (+)
OUT 2 (-)
OUT 3 (+)
OUT 3 (-)
TURB FREQ
TURBCOM
24 VDC (+)
4-20mA IN
FREQ IN
SIG COMM
24 VDC (-) EARTH
24V N (-)
24V L (+)
EARTH
24V N (-)
24V L (+)
24V ONLY
!
JMP1 RS485 LOAD
TERMINATED UNTERMINATED
TB10
2 4
WIRE
2 4
WIRE
2 4
WIRE
JP3 J2
1 2 3
TB7
RTDs RETURN
4
1 2 3
TB5
ONICON FIXED RANGE OR
SCALED INPUT ANALOG
TEMPERATURE SENSORS
4. (+) RETURN TEMP
4
3. SHIELD
2. (-) SUPPLY TEMP
1. (+) SUPPLY TEMP
5
5. (-) RETURN TEMP
RTD SELECTION
JUMPERS
1 2 3
TB6
RTDs SUPPLY
4
4. (B) COMPENSATION LEAD (not used w/ 2 wire RTD)
3. (B) RTD SIGNAL LEAD
2. (A) COMPENSATION LEAD (not used w/ 2 wire RTD)
1. (A) RTD SIGNAL LEAD
1 - 2 = 2-WIRE RTD
2 - 3 = 4-WIRE RTD
1
2
2
3
4. (B) COMPENSATION LEAD (not used w/ 2 wire RTD)
3. (B) RTD SIGNAL LEAD
2. (A) COMPENSATION LEAD (not used w/ 2 wire RTD)
1. (A) RTD SIGNAL LEAD
1.
powered 4-20mA scalable range temperature sensors. See Temperature
2. These terminal blocks for use with an 1000 ohms platinum RTD temperature
additional information.
3.
ONICON Incorporated 727-447-6140 Page 20 www.onicon.com
SYSTEM-20 BTU METER
3.3.5 Temperature Input Wiring Details
1 2 34
ONICON FIXED RANGE or LOOP POWERED 4-20mA SCALABLE RANGE
TEMPERATURE INPUTS
TERMINAL BLOCK TB5
1 2 3
4. (+) RETURN TEMP
4
3. SHIELD
2. (-) SUPPLY TEMP
1. (+) SUPPLY TEMP
5
5. (-) RETURN TEMP
(+) Signal
(-) Reference Return Temperature Sensor
Shield
(+) Signal
(-) Reference Supply Temperature Sensor
1000 OHMS 4-WIRE PLATINUM RTD TEMPERATURE INPUTS
w/ ATTACHED PIGTAILS CABLE
TERMINAL BLOCK TB6 (SUP)
& TB7 (RET)
4. (B) COMPENSATION LEAD
3. (B) RTD SIGNAL LEAD
2. (A) COMPENSATION LEAD
1. (A) RTD SIGNAL LEAD Brown*
Yellow*
White*
Green*
1000 OHMS 4-WIRE PLATINUM TEMPERATURE INPUTS
w/ INTEGRAL CONDUIT READY JUNCTION BOX
1 2 3 4
TERMINAL BLOCK TB6 (SUP)
& TB7 (RET)
* Cable color coding to DIN 47100
4. (B) COMPENSATION LEAD
3. (B) RTD SIGNAL LEAD
2. (A) COMPENSATION LEAD
1. (A) RTD SIGNAL LEAD
Refer to Temperature Sensor Connection on page 19 for additional details on the
terminal location.
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