pico Technology TC-08 User manual

TC-08 Single-Channel
Terminal Board
User’s Guide

2Copyright © 2006–2022 Pico Technology Ltd. All rights reserved.DO167-2
User's Guide Single-channel terminal board for TC-08
TC-08 Single-Channel
Terminal Board
User’s Guide
1. Introduction
The TC-08 Single-Channel Terminal Board is an accessory for the Pico Technology TC-08 8-Channel
Thermocouple Data Logger. The screw terminals allow wires to be attached to the data logger without
soldering and enable the TC-08 to measure voltages from –5 to +5 V or 4–20 mA loop currents.
The terminal board is designed for use with the TC-08 and is not guaranteed to work with other thermocouple
data loggers.
2. Safety
To prevent possible electrical shock, fire, personal injury, or damage to the product, carefully read this safety
information before attempting to install or use the product. In addition, follow all generally accepted safety
practices and procedures for working with and near electricity.
The following safety descriptions are found throughout this guide:
A WARNING identifies conditions or practices that could result in injury or death.
A CAUTION identifies conditions or practices that could result in damage to the product or equipment to
which it is connected.
Symbols
These safety and electrical symbols may appear on the product or in this guide:
Symbol Description
Possibility of electric shock
Caution Appearance on the product indicates a need to read these safety
and operation instructions.
Do not dispose of this product
as unsorted municipal waste.
WARNING
To prevent injury or death use the product only as instructed. Protection provided by the product may be
impaired if used in a manner not specified by the manufacturer.
Maximum input ranges
The table below and markings on the product indicate the maximum input voltage between each
measurement terminal of the Terminal Board and the COM input. The maximum input voltage is the
maximum voltage that can be applied without risk of damage to the instrument.
WARNING
To prevent damage to the terminal board or connected equipment, and risk of electric shock, do not attempt
to measure voltages or currents outside of the marked rating for each terminal.
4 - 20 / 5V
500mV
50mV
COM
4 - 20mA
O N

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Single-channel terminal board for TC-08 User's Guide User's Guide Single-channel terminal board for TC-08
Connecting to the data logger
You can plug the terminal board directly into any of the thermocouple sockets on the TC-08.
Disposal
Your help and efforts are required to protect and keep our environment clean. Therefore either return this
product at the end of life to the manufacturer or ensure WEEE-compliant collection and treatment yourself.
Care of the product
Inspect the Terminal Board and all probes, connectors, cables and accessories before use for signs of
damage.
CAUTION
When cleaning the Terminal Board, use a soft cloth and a solution of mild soap or detergent in water. Do not
submerge the Terminal Board in liquid as this will compromise the electronics and insulation.
3. Measuring voltages and currents
1. Connect the negative side of your circuit to the COM terminal.
2. Connect the positive side of your circuit to the 5 V, 500 mV or 50 mV terminal depending on the voltage
range of the signal. For a 4–20 mA loop signal, use the 5V input.
3. For a 4–20 mA loop signal, set the switch to ON. For a voltage signal, set the switch to OFF.
4-20/5V
500mV
50mV
4-20mA
COM
1.5 V
+
–
4. Plug the terminal board into the TC-08.
5. Connect the TC-08 to the computer using the cable supplied with the
logger.
6. Run PicoLog 6 on the computer.
7. On the Devices page, click the TC-08 channel that you are using.
8. Set Input type to one of the Terminal Board... options:
9. PicoLog will display the voltage or current applied to the terminal board
in the monitor window.
WARNING
Signals exceeding the voltage limits in the table below are defined as “hazardous live” by EN 61010:
Signal voltage limits of EN 61010-1:2010+A1:2019
±60 V DC 30 V AC RMS ±42.4 V pk max.
Do not use the Terminal Board to directly measure hazardous live voltages. Do not allow the Terminal Board,
or attached wiring to come into contact with exposed hazardous live conductors.
To prevent electric shock, take all necessary safety precautions when working on equipment where
hazardous live voltages may be present.
WARNING
To prevent injury or death, do not connect the Terminal Board directly to the mains (line power).
WARNING
To prevent injury or death, do not use the product if it appears to be damaged in any way, and stop use
immediately if you are concerned by any abnormal behavior.
WARNING
To prevent injury or death, use the product only as instructed and use only accessories that have been
supplied or recommended. Protection provided by the product may be impaired if used in a manner not
specied by the manufacturer.
CAUTION
Refer to the TC-08 User’s Guide for information on safe use of the data logger.
The Terminal Board is for use with the TC-08 only. To prevent damage, do not attempt to connect it to other
equipment.
Grounding
CAUTION
To prevent measurement errors caused by poor grounding, always connect the data logger to the computer
using the blue USB cable supplied with the data logger.
Environment
CAUTION
This product is for indoor or outdoor use, in dry locations only.
WARNING
To prevent injury or death, do not use in wet or damp conditions, or near explosive gas or vapor.
CAUTION
To prevent damage, always use and store your Terminal Board in appropriate environments.
Storage Operating
Temperature –20 °C to +60 °C 0 °C to +40 °C
Max. humidity (non-condensing) 5 to 95 %RH 5 to 80 %RH
Max. altitude 2000 m
Pollution degree
2
(As defined in IEC 61010-031. Non-conductive pollution with occasional
temporary conductivity due to condensation.)

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Single-channel terminal board for TC-08 User's Guide User's Guide Single-channel terminal board for TC-08
4.4 Warranty
Pico Technology Ltd. (“Pico”) warrants this accessory for normal use and operation within
specifications for a period of five years from date of shipment and will repair or replace any
defective product which was not damaged by negligence, misuse, improper installation,
accident or unauthorized repair or modification by the buyer. This warranty is applicable only
to defects due to material or workmanship. Pico disclaims any other implied warranties of
merchantability or fitness for a particular purpose. Pico will not be liable for any indirect,
special, incidental, or consequential damages (including damages for loss of profits, loss of business, loss
of use or data, interruption of business and the like), even if Pico has been advised of the possibility of such
damages arising from any defect or error in this manual or product.
4.5 Compliance
This terminal board has been designed and tested in accordance with UK Conformity Assessed (UKCA)
Statutory Requirements SI 2013/3113 (WEEE) and SI 2012/3032 (RoHS).
This terminal board has been designed and tested in accordance with European Union directives 2012/19/
EU (WEEE) and 2011/65/EC (RoHS), Incorporating Commission Delegated Directive 2015/863/EU. The EU
Declaration of Conformity is available for download from www.picotech.com/library/documentation.
4. Reference
4.1 Inputs and switch
Name Function
4–20/5 V Input for the measurement side of a 4–20 mA loop or -5 to +5 V signal
500 mV Input for the measurement side of a -500 mV to +500 mV signal
50 mV Input for the measurement side of a -50 mV to + 50 mV signal
COM Input for the COMmon/reference side of any voltage or current signal.
To prevent incorrect readings, please DO NOT allow this terminal to exceed
the ± 7.5 V common-mode range of the data logger.
4–20 mA Set switch to “ON” for a 4–20 mA loop signal.
Set switch to “OFF” for all voltage signals.
4.2 Input ranges
The approximate voltages sensed by the data logger correspond to the input voltages as follows:
Input range Input impedance PicoLog voltage
(approximate)
Scaling
(more precise)
–5 to +5 V 101 kΩ –50 to +50 mV x101.5
–500 to +500 mV 10.1 kΩ –50 to +50 mV x10.105
–50 to +50 mV 1 kΩ –50 to +50 mV x1
4 to 20 mA +9.6 to +48 mV x(24/10.105)
To obtain more precise voltages, use the scaling factors shown above. These are calculated from the nominal
values of the resistors on the terminal board.
4.3 Specications
Dimensions 57 x 27 x 14 mm (approx. 2.3 x 1.1 x 0.6 in.)
Weight 12 g nominal (approx. 0.5 oz)
Terminal wire size 1.5 mm² solid, 1.0 mm² stranded, 16 to 26 AWG
5
YEAR WARRANTY

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Single-channel terminal board for TC-08 User's Guide
Pico Technology and PicoLog are internationally registered trade marks of Pico Technology Ltd.
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countries.
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Made in the United Kingdom.
www.picotech.com
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