Sensia TA-1000 Plus Instructions for use

LINCO
TA-1000 Plus
Temperature Averager
Hardware User Manual
Manual No. 50258174, Rev. 02
Valves & Measurement

Important Safety Information
Symbols and Terms Used in this Manual
!WARNING: This symbol identies information about practices or circumstances that can lead to personal
injury or death, property damage or economic loss.
CAUTION Indicates actions or procedures which if not performed correctly may lead to personal injury or
incorrect function of the instrument or connected equipment.
Important Indicates actions or procedures which may affect instrument operation or may lead
to an instrument response which is not planned.
Note Indicates additional information about specic conditions or circumstances.
Protective (earth) ground
Symbols Marked on Equipment
Attention! Refer to manual
*Mark of Sensia.
Other company, product, and service names are the properties of their respective owners.
Copyright © 2021 Sensia All rights reserved.
Manual No. 50258174, Rev. 02
November 2016

iii
TA-1000 Plus Temperature Averager Table of Contents
Contents
Section 1—Introduction................................................................................................................................... 5
Overview............................................................................................................................................................. 5
Weatherproof Package ................................................................................................................................ 5
Explosion-Proof Package ............................................................................................................................. 5
Display ......................................................................................................................................................... 6
Standard I/O ................................................................................................................................................. 6
Optional I/O .................................................................................................................................................. 7
Product Identication ................................................................................................................................... 8
Specications ............................................................................................................................................... 8
Table 1.1—TA-1000 Plus Specications ...................................................................................................... 8
Section 2—Installing the TA-1000 Plus (Weatherproof).............................................................................. 13
Overview........................................................................................................................................................... 13
Preparations ..................................................................................................................................................... 13
Weatherproof Package Mounting Options ........................................................................................................ 14
Panel-Mounting the Device ........................................................................................................................ 15
Installing on a Vertical Pipe ........................................................................................................................ 15
Weatherproof Package Field Wiring Connections ........................................................................................... 17
Wiring Procedure ....................................................................................................................................... 17
Wiring Diagrams (WP) ...................................................................................................................................... 19
Wiring Diagrams for Optional I/O (WP) ............................................................................................................ 20
Section 3—Installing the TA-1000 Plus (Explosion-proof) ......................................................................... 21
Overview........................................................................................................................................................... 21
Preparations ..................................................................................................................................................... 21
Explosion-proof Package Mounting Options .................................................................................................... 21
Panel-Mounting the Device ........................................................................................................................ 23
Installing on Vertical Pipe ........................................................................................................................... 23
Explosion-proof Package Field Wiring Connections......................................................................................... 24
Wiring Procedure ....................................................................................................................................... 24
Wiring Diagrams for Bottom Circuit Board (EXP) ............................................................................................. 26
Wiring Diagrams for Top Circuit Board (EXP) ................................................................................................... 27
Section 4—Conguring and Resetting the TA-1000 Plus ........................................................................... 29
Table 4.1—Display Readouts (default) ...................................................................................................... 29
Table 4.2—Analog Input Readouts (optional) ............................................................................................ 29
Table 4.3—Volume Correction Readouts (compensated volume option) .................................................. 29
Viewing Parameters ........................................................................................................................................ 30
Weatherproof Package .............................................................................................................................. 30
Explosion-proof Package ........................................................................................................................... 30
Conguring the Device ..................................................................................................................................... 31
Conguration Menus .................................................................................................................................. 31
Enabling Display Scrolling ......................................................................................................................... 31
Conguring Modbus Communications ....................................................................................................... 32
Conguring Analog Inputs .......................................................................................................................... 33
Enabling Volume Compensation ................................................................................................................ 36
Conguring Outputs ................................................................................................................................... 37
Conguring a Custom Probe Fail Alarm ..................................................................................................... 38
Table 4.4—Probe Fail Setpoints ................................................................................................................ 39
Custom Fail Alarms .................................................................................................................................... 39
Disabling the Pulse Input Filter .................................................................................................................. 40

iv
Table of Contents TA-1000 Plus Temperature Averager
Resetting Probe Totals, Alarms and Input Averages ........................................................................................ 41
Reset Control ............................................................................................................................................. 41
Resetting Probe Totals ............................................................................................................................... 42
Clearing Alarms .......................................................................................................................................... 42
Clearing Input Averages ............................................................................................................................. 42
Securing the Device After Reset....................................................................................................................... 43
Weatherproof Package .............................................................................................................................. 43
Explosion-proof Package ........................................................................................................................... 43
Section 5—TA-1000 Plus Maintenance......................................................................................................... 45
Obtaining Technical Assistance ........................................................................................................................ 45
Circuit Assembly Replacement—Weatherproof ............................................................................................... 45
Display Replacement—Weatherproof .............................................................................................................. 48
Circuit Assembly Replacement—Explosion-proof ............................................................................................ 48
Replacing the Top Circuit Assembly ........................................................................................................... 48
Replacing the Bottom Circuit Assembly ..................................................................................................... 52
Troubleshooting ................................................................................................................................................ 54
Weatherproof Package .............................................................................................................................. 55
Explosion-proof Package ........................................................................................................................... 57
Section 6—Spare Parts.................................................................................................................................. 59
Table 6.1—TA-1000 Plus Spare Parts ....................................................................................................... 59
Appendix A—TA-1000 Plus Protocol ...........................................................................................................A-1
Introduction ......................................................................................................................................................A-1
Supported Commands.....................................................................................................................................A-1
Data Types ......................................................................................................................................................A-2
Registers .........................................................................................................................................................A-2
Product Code...................................................................................................................................................A-3
Firmware Version/Register Table Version ........................................................................................................A-3
Manufacture Date/Sales Date .........................................................................................................................A-3
Appendix B—Wiring Recommendations for 2-Conductor Cable..............................................................B-1
Changing Probe Wire Compensation Settings ................................................................................................B-1
Appendix C—Dual-Element Probe Systems...............................................................................................C-1
Installing a Dual Probe ....................................................................................................................................C-1
Changing the Device Conguration for Use with a Dual Probe ................................................................C-1
Selecting the Probe Type ..........................................................................................................................C-2
Appendix D—Installing the Weatherproof Custody Transfer Lockout Kit ...............................................D-1
Appendix E—Legacy TA-1000 Board Replacement ...................................................................................E-1
Installing a Weatherproof Retrot Kit ...............................................................................................................E-1
Installing an Explosion-proof Retrot Kit..........................................................................................................E-4

5
TA-1000 Plus Temperature Averager Section 1
Section 1—Introduction
Overview
The LINCO* TA-1000 Plus Temperature Averager receives pulses from a ow-measuring device such as a
positive displacement (PD) meter. As each pulse is received, it measures the temperature, adds the tempera-
ture into a rolling counter, divides the total temperature by the number of readings and displays the average
ow-weighted temperature for the batch. The accumulated probe (pulse) count may be cleared to start a new
batch.
Two fail-safe relay output contacts provide an alarm if a temperature probe fails, a temperature is outside the
acceptable range, the processor fails or power is seriously depleted or cut off. If the TA-1000 Plus is equipped
with analog inputs, the relay output will also signal an out-of range input. If equipped with a net pulse output
option, the device can be used to transmit a compensated volume to another device.
The TA-1000 Plus uses a single-thermistor probe that delivers highly accurate measurements without periodic
recalibration. The device is available in a CSA-approved explosion-proof or weatherproof package and may
be powered with a 120 VAC or an 8 to 30 VDC power supply. Single-channel and dual-channel versions are
available.
Weatherproof Package
The weatherproof TA-1000 Plus (Figure 1.1) features a compact molded berglass-reinforced polyester enclo-
sure with an easy-to-read LCD display and display control switch mounted in the door. Three conduit hubs
are installed in the bottom for wiring. An optional custody transfer lockout kit provides added security. (See
Section 6—Spare Parts, Page 59 and Appendix D—Installing the Weatherproof Custody Transfer Lockout
Kit, Page D-1 for further information about ordering and installing the custody transfer lockout kit.)
Users congure the device using three buttons mounted on the circuit board inside the enclosure. A reset but-
ton for clearing probe count, alarms and analog input averages is also provided on the circuit board.
Figure 1.1—TA-1000 Plus weatherproof package
Explosion-Proof Package
The explosion-proof TA-1000 Plus (Figure 1.2, Page 6) features a cast aluminum enclosure with an easy-
to-read display, two external switches, and a conduit opening in the bottom for wiring. The switch mounted
on the right side of the enclosure allows the user to pace through the parameters displayed on the LCD. The
switch mounted on the left side is used to reset totals, alarms and analog input averages. Three buttons posi-
tioned just below the display provide access to conguration settings when the enclosure lid is removed.

6
Section 1 TA-1000 Plus Temperature Averager
An optional terminal housing can be connected to the bottom conduit opening to provide more entries for
eld wiring, if desired (Figure 1.2). The terminal housing is recommended for all two-channel models and
any single-channel model used with analog inputs/outputs or digital (relay) outputs. The display and re-
set switches described above can be mounted in the terminal housing without violating hazardous area
certication.
Important The terminal housing must be installed at the factory. The addition of a terminal housing to an
existing device violates CSA certication regulations.
Figure 1.2— TA-1000 Plus explosion-proof package with optional terminal housing
Display
The display provides a real-time readout of process temperature (measured by the probe), average tempera-
ture, total counts, counts per hour and alarm count. In devices equipped with optional I/O, the display may
also include:
•Measurements from other devices connected to the TA-1000 Plus
•Volume correction factor
•Net volume
The integral backlight is designed to light the LCD when the display control switch is in use. Backlighting
will turn off approximately 90 seconds after the last press of the control switch. The backlight will remain on
when the temperature is below 32°F.
Standard I/O
Every TA-1000 Plus includes the following standard features:
•One or two temperature inputs (customer choice)
•Two pulse (ow) inputs
•Two digital (relay) outputs

7
TA-1000 Plus Temperature Averager Section 1
Temperature
The temperature input is a single-element probe sold by Cameron. The dual-channel TA-1000 Plus device
will accept inputs from two probes.
Flow
Flow input pulses may be 9–30 VDC pulses, 120 VAC pulses or dry contact closures.
Digital Outputs
Digital outputs can be congured to trigger an alarm when a parameter goes outside its designated range.
They can also be used to control divert valves in devices congured for BS&W monitoring. BS&W con-
trol can be used to open a divert valve on a LACT unit when the BS&W percentage is greater than the pro-
grammed setpoint or to alarm when the BS&W measurement is out of range.
The digital outputs can be congured to respond to any alarm condition, a probe alarm, or an analog input
(BS&W setpoint, pressure or density) alarm when an analog input is enabled. If equipped with a net pulse
output option, the device can be used to transmit a compensated volume to another device. The alarm output
is an SPDT relay output with normally-open and normally-closed contacts.
Common causes of TA-1000 Plus alarms are:
•Probe or probe wiring failure
•Faulty temperature circuitry
•Measured value out of range (for temperature, pressure, density or BS&W)
Optional I/O
Optional features include:
•Modbus communications (RS-232 and RS-485)
•Analog inputs/outputs (1 or 2)
•Compensated volume/net pulse output
Modbus Communications
When Modbus communications option is enabled, Port 2 provides RS-485 and RS-232 communications, al-
lowing a Modbus master device to access TA-1000 Plus measurements. See Appendix A—TA-1000 Plus Pro-
tocol, Page A-1 for a description of Modbus protocol registers supported.
Analog Inputs
Analog inputs can be congured for use with a 0–5 V, 1–5 V or 4–20 mA signal and can be used as inputs for
BS&W content, pressure or other analog measurements.
Analog Outputs
Analog outputs can be congured for transmitting live temperature, average temperature or analog input val-
ues (when analog inputs are enabled).
Compensated Volume/Net Pulse Output
The compensated volume/net pulse output option allows the user to input a meter factor and an API gravity to
calculate the net volume corrected to 60°F. If pressure and temperature compensation is desired, a live pres-

8
Section 1 TA-1000 Plus Temperature Averager
sure can be brought into the TA-1000 Plus using an optional analog input.
The correction calculation uses API MPMS Chapter 11.1 to calculate the volume correction factor (VCF) of
crude oil using the entered API gravity and average temperature, for a temperature base of 60°F and a pres-
sure base of 14.73 psia. The temperature correction is in accordance with API Table 6A: Generalized Crude
Oil Volume Correction Factors.
The VCF and net volume values are automatically displayed when the compensated volume/net pulse output
option is enabled. The compensated volume can be sent to an external device as a pulse output using Digital
Output 2.
Product Identication
Each device is labeled with a serial tag that identies the product by model number and serial number, the op-
erating temperature range of the device, certication details and hazardous area precautions (Figure 1.3).
Figure 1.3—Example product markings
Specications
Table 1.1—TA-1000 Plus Specications
Category Description Specication
Electrical Safety
Classication (CSA-
approved for US and
Canada)
Explosion-proof CSA Class I, Div. 1, Groups C and D, T6
Weatherproof CSA Class I, Div. 2, Groups B, C, D, T6
Enclosure Explosion-proof Cast aluminum, painted with epoxy and polyurethane
Type 4/IP66 rating
Dimensions: 6.8” H × 10.33” W × 5.69” D
Dimensions with optional terminal housing:
11.53” H × 10.33” W × 5.69” D
Weatherproof Molded berglass-reinforced polyester, Lexan polycarbonate
viewing window
Type 4/IP66 rating
Dimensions: 6.91” H × 6.5” W × 4.25” D

9
TA-1000 Plus Temperature Averager Section 1
Table 1.1—TA-1000 Plus Specications
Category Description Specication
Weight Explosion-proof 5.2 lb
Explosion-proof with
Optional Terminal Housing
8.1 lb
Weatherproof 3.2 lb
System Power 120 VAC, 50/60 Hz @ 250 mA
8–30 VDC @ 200 mA
Operating Temperature -40°F to 158°F (-40°C to 70°C)
Display Backlit LCD 2 rows, 16 alphanumeric characters per row
Automatic scrolling, user congurable
LCD Readout Parameters Probe temperature
Probe count
Probe average temperature
Pulse input count
Counts per hour
Probe alarm
BS&W (live reading, average and alarm with analog input
option)
Pressure (live reading, average and alarm with analog input
option)
Other (live reading, average and alarm with analog input
option)
Volume correction factor (with compensated volume/net
pulse output option)
Net volume (with compensated volume/net pulse output
option)
Controls Explosion-proof External display switch (right conduit entry) cycles forward
through LCD readout parameters
External reset switch (left conduit entry) resets totals and
alarms and is protected by a custody transfer lockout
Keypad buttons (STEP, INCREMENT, ENTER) allow device
conguration (remove lid to access)
Weatherproof External display switch cycles forward or backward through
LCD readout parameters
Internal reset button resets totals and alarms
Internal buttons (STEP, INCREMENT, ENTER) allow device
conguration
Communications Port 1 (USB) reserved for diagnostic use
Port 2, optional (serial RS-232 or RS-485 port
communications)
RTU Modbus protocol

10
Section 1 TA-1000 Plus Temperature Averager
Table 1.1—TA-1000 Plus Specications
Category Description Specication
I/O, Standard Temperature Probe Input Quantity: 1 per channel (2 possible)
Supports single-element thermistor probe
Operating Temperature: -40°F to 257°F (-40°C to 125°C)
Accuracy ±0.15°F (± 0.08°C)
24-bit self-calibrating ADC (interchangeable probes)
Automated wire length compensation
Volume (Pulse) Input Quantity: 1 per channel (2 possible)
Optically-isolated input
Dry contact closure, 180 Hz maximum (with PulseIn Filter
disabled; see Disabling the Pulse Input Filter, page 40 for
more information.)
AC input, 120 VAC, 180 Hz maximum (with PulseIn Filter
disabled; see Disabling the Pulse Input Filter, page 40 for
more information.)
DC input, 9 to 30 VDC, 230 Hz maximum (with PulseIn Filter
disabled; see Disabling the Pulse Input Filter, page 40 for
more information.)
Digital/Relay Outputs Quantity: 2
SPDT dry contact relays rated for 5 amp at 120 VAC/30 VDC
Pulse duration: 1 second
Alarm on invalid probe, pulse input or analog input, where
applicable
BS&W divert valve control (with analog input option enabled)
Net pulse output (with compensated volume/net pulse output
option enabled)
I/O, Optional Analog Inputs Quantity: 1 or 2 (customer choice)
Congurable as 0–5 VDC, 1–5 VDC, or 4–20 mA signal
Provides readings from a pressure transmitter, densitometer
or BS&W detector
Averages measurements from any device with a 0–5 VDC,
1–5 VDC, or 4–20 mA output
Accuracy: ±0.030% of span @ 77°F (25°C)
Temperature effect: ±0.25% of span over operating
temperature range
Impedance: >60 Kohm for voltage inputs (approximately 250
ohm for 4–20 mA input)
Transmitter voltage supply:
AC-powered: 24 VDC @ 20 mA
DC-powered: 8–30 VDC
Single-ended inputs
Sample rate: 1 second
24-bit self-calibrating ADC

11
TA-1000 Plus Temperature Averager Section 1
Table 1.1—TA-1000 Plus Specications
Category Description Specication
I/O, Optional Analog Outputs Quantity: 1 or 2 (customer choice)
Congurable for transmitting a live probe temperature, an
average temperature or an analog input value (in devices
equipped with analog inputs)
Type 4–20 mA, optically-isolated, externally powered
Accuracy: ±0.1% of span @ 77° F (25° C)
Temperature effect: ±27.8 ppm/°F (±50 ppm/°C)
Output load R (ohms) = {supply (volts)–8}/0.02
Maximum voltage: 30 VDC
D/A resolution: 16 bits
Compensated Volume API MPMS 11.1-compliant temperature compensation
Compensates for pressure when a live pressure input is
supplied via Analog 1
For use with single-ow measurement channel
Allows the unit to perform net volume calculations based on
user-entered gravity and meter factor along with a TA-1000
Plus-supplied average temperature and raw pulse input
Net Pulse Output Quantity: 1
Outputs compensated net volume using Digital Output 2
Alarm Relay Alerts user to a temperature or analog input reading that
remains outside the specied range for four consecutive ow
counts
User-congurable temperature limits (high, low)
Default fail temperature alarms determined by probe
operating range
Data Storage Non-volatile FRAM memory ensures data is never lost and
operates at higher speeds than traditional memory types
No lithium battery required

12
Section 1 TA-1000 Plus Temperature Averager
This page is left blank intentionally.

13
TA-1000 Plus Temperature Averager Section 2
Section 2—Installing the TA-1000 Plus (Weatherproof)
Overview
The TA-1000 Plus is fully assembled and ready for mounting at the time of shipment (see Figure 2.1, Page
14 for device dimensions). Before installing, please carefully review this section to familiarize yourself
with recommended installation procedures and certication requirements.
Important The TA-1000 Plus weatherproof package is suitable for use in Class I, Div. 2, Groups B, C and D or
non-hazardous locations only.
Preparations
Before installing the TA-1000 Plus, review the following list of considerations for successful installation and
operation:
1. Does the intended mounting location offer easy access and visibility and is it free of vibration (which can
interfere with device accuracy)?
2. Do you have a power source of 120 VAC or 8–30 VDC on-site? An earth ground is required for either AC
or DC operation. For wiring power to the TA-1000 Plus, 16 AWG wire is recommended.
3. Do you have a temperature probe and four-conductor wire for each channel to be used (a maximum of
two channels are supported)? The temperature probe input requires four connecting wires for each probe.
4. Have you considered temperature transmission distance when selecting wiring size? Temperature probes
may be located up to 1200 feet away from the TA-1000 Plus. Distances of up to 500 feet require 18 to 20
AWG wire. Distances of 500–1200 feet require 16 AWG wire.
5. Are you installing a low point or drip loop in the conduit below the temperature probe and thermowell?
The drip loop allows condensation to accumulate in the low point of the conduit instead of the probe and
can prevent probe failure.
6. Do you have a meter pulse input for each channel to be used? Each channel can be connected to either
a dry contact closure (no external power source), a 9–30 VDC pulse or a 120 VAC meter pulse. The 120
VAC meter pulse allows for connection to most existing LACT control panels and eliminates the need for
a separate meter transmitter. A wire size of 18 to 20 AWG is recommended for this service.
Important AC and DC wiring should be run in separate conduits. If the dry contact closure meter pulse op-
tion is used, the interconnecting wiring can be run in the same conduit as the temperature probe
wiring. When a common metallic conduit is used, shielded cables are not required for short runs.
When a long conduit run is required or the conduit is run near high-current devices, shielded cable
must be used.

14
Section 2 TA-1000 Plus Temperature Averager
Weatherproof Package Mounting Options
The TA-1000 Plus can be panel-mounted with the mounting hardware supplied or pole-mounted with an op-
tional pole-mount kit (see Section 6—Spare Parts, Page 59 for ordering information).
6.50 in.
(165.1 mm)
6.91 in.
(175.5 mm)
4.25 in.
(108.0 mm)
Figure 2.1—Typical weatherproof package dimensions
7.12 in.
(180.85 mm)
8.0 in.
(203.07 mm)
4.00 in.
(101.60 mm)
4.41 in.
(112.01 mm)
Figure 2.2—Typical dimensions for panel-mount installation, weatherproof package (two outside conduit hubs
hidden in this view)

15
TA-1000 Plus Temperature Averager Section 2
Panel-Mounting the Device
The weatherproof TA-1000 Plus can be mounted to a panel using the mounting clips provided with the de-
vice. To install the device on a panel, perform the following steps (dimensions provided in Figure 2.2, Page
14):
1. Attach the plastic mounting tabs to the back of the device, as shown in Figure 2.3.
2. Place the device against the panel to which it will be mounted and mark the location of the mounting
holes.
Note The TA-1000 Plus should be positioned for easy access and visibility.
3. Drill out the marked holes.
4. Insert the bolts through the back of the panel into the mounting tabs (Figure 2.3).
5. Screw the provided lugs onto the bolts and tighten to secure.
Mounting tab (1 of 4)
Figure 2.3—Tabs for mounting weatherproof TA-1000 Plus to a panel
Installing on a Vertical Pipe
The weatherproof TA-1000 Plus can be mounted to a 2-inch pole with an optional pole-mount kit (includes
two panels, four screws and two U-bolts). To install the TA-1000 Plus on a vertical pole, perform the follow-
ing steps (dimensions provided in Figure 2.5, Page 16):
1. Place the enclosure on its face.
2. Dry t the brackets with the mounting holes in the enclosure so that a bracket extends to the top and
bottom.
3. Place two washers inside each screw hole inset in the enclosure and position the brackets on top of the
washers so that the enclosure screw holes align with the outer holes of the bracket.
4. Insert the screws in the inside holes of the bracket (Figure 2.4, Page 16) and tighten with a screwdriver.
5. Place the U-bolts around the vertical pipe section and through the mounting plate (Figure 2.5, Page
16).
6. Fasten the mounting plate with the lock washers and nuts supplied with the U-bolts.

16
Section 2 TA-1000 Plus Temperature Averager
Figure 2.4—Brackets for mounting weatherproof TA-1000 Plus to vertical pipe
2.88 in.
(73.2 mm)
10.32 in.
(262.1 mm)
9.52 in.
(241.8 mm)
6.91 in.
(175.5 mm)
3.25 in.
(82.6 mm)
4.38 in.
(111.3 mm)
Figure 2.5—Typical dimensions for pole-mount installation,weatherproof package

17
TA-1000 Plus Temperature Averager Section 2
Weatherproof Package Field Wiring Connections
CAUTION Before attempting any wiring, ensure that all power is disconnected. Before reapplying power, en-
sure that all wiring connections are secure and connected properly. All electrical wiring should be
installed in accordance with the latest National Electric Codes and should conform to all local code
requirements.
All eld wiring enters the weatherproof TA-1000 Plus through three conduit hubs in the bottom of the enclo-
sure and connects to the circuit assembly inside. Unused hub entries should be plugged, as shown in Figure
2.6.
Figure 2.6—Conduit hubs with plugs
Wiring Procedure
CAUTION All eld wiring must conform to the National Electric Code, NFPA 70, Article 501-4(b) for installa-
tions within the United States or as specied in Section 18-156 of the Canadian Electrical Code
for installations within Canada. Local wiring ordinances may also apply. All eld wiring must have
a wire range of 22 to 14 AWG, insulation rated for 120 VAC or above and copper or copper-clad
aluminum conductors. Terminal block screws must be tightened to a minimum torque of 5 to 7 inch
lbs to secure the wiring within the terminal block. Only personnel who are experienced with eld
wiring should perform these procedures.
The instrument must be grounded with a protective earth grounding conductor in accordance with
national and local electrical codes. See Step 7 of the wiring procedure below.
To wire the weatherproof TA-1000 Plus for operation, complete the following eld connections while refer-
encing the wiring diagrams shown in Figure 2.8, Page 19 and Figure 2.9, Page 20:
1. Disconnect all power to the device.
2. Unlatch the door of the enclosure to access the circuit assembly.

18
Section 2 TA-1000 Plus Temperature Averager
3. Verify that the following factory connections are secure:
a. The J1 connection on the display assembly mounted inside the door is connected to the J2 connection
on the circuit board by a SATA cable.
b. The door-mounted display switch is connected to TB1 (Display Switch) on the circuit board.
4. Connect the owmeter or pulse input wiring. For an AC or DC pulse input, use TB12. For a dry contact
input, use TB13.
5. Connect communications wiring to the RS-232 port (TB3) or the RS-485 port (TB4), if applicable.
6. Connect probe input wiring using TB6 and TB7.
7. Connect wiring for optional I/O (if appropriate) as follows:
a. Connect analog input signals wiring to TB5.
b. Connect analog output signals wiring to TB8.
c. Connect digital (relay) output signals wiring to TB9. The relay output contact(s) shut down the meter-
ing system in case of power failure, internal watchdog failure or temperature probe alarm. Contacts
are 5-amp SPDT dry contact relays. The alarm relay de-energizes in an alarm condition to provide
fail-safe operation.
d. If a remote reset input is desired, terminate the wiring at TB2. This input connection can be used for
a customer-supplied dry contact switch or for triggering an automatic reset with a signal from another
device, such as a programmable logic controller (PLC).
7. Route a protective earth grounding conductor into the enclosure with the incoming power conductors to
ground the TA-1000 Plus in accordance with national and local electrical codes. Connect the ground wire
to the internal ground lug located just below the circuit board on the support bracket (see Figure 2.7).
8. Connect external power wiring to TB10 (AC) or TB11 (DC), as appropriate.
9. To prevent moisture and corrosive vapors from entering the unit, plug all unused conduit openings enter-
ing the TA-1000 Plus. For additional protection, moisture-absorbing desiccant packs are included with
each unit.
Earth ground screw
Figure 2.7—Protective earth ground screw location in weatherproof enclosure

19
TA-1000 Plus Temperature Averager Section 2
Wiring Diagrams (WP)
TB12
DC PULSE INPUT
(9–30 VDC)
+ - + -
PULSE
INPUT 1
PULSE
INPUT 2
+ -
TB12
+ - + -
PULSE
INPUT 1
PULSE
INPUT 2
LINE N
AC PULSE INPUT
(120 VAC)
PULSE INPUT CONTACT INPUT
TB13
+ - + -
CONTACT
INPUT 1
CONTACT
INPUT 2
RELAY
CONTACT
POWER
DC POWER SUPPLY
(8–30 VDC)
TB11
+- CGND
+-GND
TB10
AC POWER SUPPLY
(
120 VAC)
L N CGND
GND
LINE N
COMMUNICATION
Note: If failure to communicate occurs, swap RXD and
TXD wires (RS-232) or A and B wires (RS-485) on the
device side.
TB3
TXD
PORT2 RS 232
RXD RTS CTS COM CGND
TXD RXD RTS CTS COM SLP
RS-232 COM DEVICE
(RADIO, MODEM, ETC)
TB4
B
PORT2 RS 485
COMA
COMB A
RS-485 COM DEVICE
(RADIO, ETC)
FOR PROBE 1, USE TB7
FOR PROBE 2, USE TB6
PROBE
PWR+ PWR-IN-IN+
RED BLACK
SINGLE-ELEMENT
PROBE
PWR+ PWR-IN-IN+
SINGLE-ELEMENT
PROBE
RED BLACK
TB6
PROBE 2 INPUT
TB7
PROBE 1 INPUT
TB13
CONT IN 1 CONT IN 2PULSE IN 1 PULSE IN 2
TB12
AC POWER INPUT DC POWER IN
TB11TB10
J2
DISPLAY SWITCH
TB1
RESET
TB2
RELAY RELAY
FUSE
AC TO DC
CONVERTER
TO DISPLAY BOARD (J1)
PORT2 RS-232
TB3
PORT2 RS-485
TB4
ANALOG IN 1 ANALOG IN 2
TB5
CN1
PORT1 USB
ANA OUT 1
TB8
ANA OUT 2
TB9
RELAY OUT 1 RELAY OUT 2
NOT USED NOT USED
TB14
RESET
◄STEP ▲INCREMENT ENTER
Figure 2.8—Wiring diagrams for TA-1000 Plus, weatherproof package

20
Section 2 TA-1000 Plus Temperature Averager
Wiring Diagrams for Optional I/O (WP)
TB9
NC1
RELAY OUTPUT 1
NO1
COM1 NC2 NO2
COM2
RELAY OUTPUT 2
RELAY
CONTACTS
RELAY OUTPUT
800
200
0
8 12 24 30
OPERATING
REGION
LOOP SUPPLY VOLTAGE (VDC)
LOAD RESISTANCE (OHMS)
ANALOG READOUT
(Resistor may be
included.)
TB8
+ - + -
ANALOG
OUTPUT 1
ANALOG
OUTPUT 2
-+
9–30 VDC
POWER SUPPLY
ANALOG OUTPUT
ANALOG INPUT
PWR
ANALOG
INPUT 1
IN-IN+
TB5
PWR
ANALOG
INPUT 2
IN-IN+
RETURN
SIGNAL
POWER
1–5 VDC/0–5 VDC
TRANSMITTER
PWR
ANALOG
INPUT 1
IN-IN+
TB5
PWR
ANALOG
INPUT 2
IN-IN+
-
+
4–20 mA
TRANSMITTER
Power supplied by TA-1000 Plus
AC output = 24 VAC
DC output = input voltage minus 0.25 VDC
Integrated 249-ohm shunt resistance is automatically
enabled for the 4-20 mA transmitter.
TB6
PROBE 2 INPUT
TB7
PROBE 1 INPUT
TB13
CONT IN 1 CONT IN 2PULSE IN 1 PULSE IN 2
TB12
AC POWER INPUT DC POWER IN
TB11TB10
J2
DISPLAY SWITCH
TB1
RESET
TB2
RELAY RELAY
FUSE
AC TO DC
CONVERTER
TO DISPLAY BOARD (J1)
NOT USED NOT USED
TB14
PORT2 RS-232
TB3
PORT2 RS-485
TB4
ANALOG IN 1 ANALOG IN 2
TB5
CN1
PORT1 USB
ANA OUT 1
TB8
ANA OUT 2
TB9
RELAY OUT 1 RELAY OUT 2
RESET
◄STEP ▲INCREMENT ENTER
Figure 2.9—Wiring diagrams for TA-1000 Plus, weatherproof package, optional inputs/outputs