Scan-Sense TC2000 User manual

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USER’S MANUAL
TC2000
PORTABLE TEMPERATURE
CALIBRATOR
A universal stable and accurate temperature well for
calibrating
and verifying temperature sensors

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TC2000 user’s manual
Thank you
for purchasing a Tek Know temperature calibrator.
The Tek Know products are manufactured by Scan-Sense AS in
accordance with our high quality standards in design, choice of
components and workmanship in order to achieve maximum customer
satisfaction and to full our vision to be our customers “First Choice”.
The TC2000 is designed and manufactured by:
Scan-Sense AS Tel: + 47 33 36 30 00
Bekkeveien 163 Fax: + 47 33 36 31 80
N-3173 Vear www.scansense.no
NORWAY [email protected]
Scan-Sense AS reserves the right to make improvments or alterations
to our products without incurring any responsibility to make the same
improvments or alterations to products previously sold.
SCAN-SENSE AS
All rights reserved. No part of this publication may be reproduced, stored in a retrieval
system, or transmitted in any form by any means, electronic, mechanical, photocopying,
recording, or otherwise without the prior permission of Scan-Sense AS.
All efforts have been made to ensure the accuracy of this handbook. We at Scan-Sense
are always striving to improve our products and handbooks, therefore we would greatly
appreciate being informed of any errors found in our product or in its manual. The above
notwithstanding, Scan-Sense can assume no responsibility for any errors in this
handbook or of their consequenses.

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TC2000 user’s manual TC2000 user’s manual
Contents
1 Introduction ...................................................................................................... 5
1.1 Certication ..................................................................................................... 5
1.2 Warranty ......................................................................................................... 5
1.3 Conventions used in this document ................................................................. 5
1.4 Introduction to dry-block calibrators ................................................................. 7
2 Preparation ...................................................................................................... 8
2.1 Unpacking and inspection ............................................................................... 8
2.2 Items supplied with the unti ............................................................................. 8
2.3 Input power connection ................................................................................. 10
3 Getting started ............................................................................................... 11
3.1 Operation controls and connections .............................................................. 11
3.1.1 Software Startup ........................................................................................... 12
3.1.2 LCD display ................................................................................................... 13
3.1.3 Well and insert ............................................................................................... 13
3.1.4 Numerickeypad................................................................................................14
3.1.5 Power on / off ................................................................................................. 14
3.1.6 RS232 Communicatiion ................................................................................. 14
3.1.7 Sensor connection ......................................................................................... 14
3.2 Sensor positioning, connection and calibration accuracy .............................. 15
3.3 Procedure to run calibration .......................................................................... 16
3.4 Procedure to run a liquid bath calibration ...................................................... 17
3.4.1 Calibrating a thermostat .................................................................................18
3.4.2 Calibrating a sensor .....................................................................................18
3.5 Finish the calibration ..................................................................................... 21
3.6 Defaults values .............................................................................................. 22
3.7 Pre-calibration cleaning of well and insert ..................................................... 23
3.7.1 Procedure for cleaning the interior of the temperature well and insert .......... 23
3.7.2 Procedure for cleaning the exterior of the insert ............................................ 24
3.7.3 Instructions for handling Liquid-lled Insert ................................................... 24
4 Operational menus, controls and indicators .................................................. 25
4.1 Introduction .................................................................................................... 25
4.2 Main Menu ..................................................................................................... 25
4.3 Manual Calibration ........................................................................................ 26
4.4 Conguration ................................................................................................. 27
4.4.1 Reference seonsor selection ......................................................................... 27
4.4.2 Reference sensor conguration ................................................................... 27
4.4.3 Reference correction ..................................................................................... 28
4.4.4 Test sensor .................................................................................................... 30

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TC2000 user’s manual
4.5 System information ........................................................................................32
4.6 Settings ..........................................................................................................32
4.7 Automatic calibration ......................................................................................33
4.8 Semi automatic calibration .............................................................................35
4.9 Calibration report ........................................................................................... 37
4.10 Software upgrade utility ..................................................................................38
5 Technical tips ................................................................................................. 39
5.1 General information regarding accurate dry-block calibrations ..................... 39
5.2 The importance of testing instrument validation ............................................ 40
5.3 The importance of a traceable standard ........................................................ 40
5.4 Correct positioning of the probe in the temperature block ............................. 40
5.5 Calibrating a short-stem probe .......................................................................41
5.6 Using the calibrator as a reference when adjusting measuring devices
(meters/gauges) ............................................................................................ 42
5.7 The Time Constant inuence on temperature-well mass ............................... 42
5.8 When to take the calibration reading ............................................................. 42
5.9 The importance of cleanliness to attain high accuracy results ...................... 43
5.10 Insulating with glass wool to minimize cold/heat loss to surrounding air ....... 43
6 Specications ................................................................................................ 44
7 Electrical specications ................................................................................. 44

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TC2000 user’s manual
TC2000 user’s manual
1 Introduction
1.1 Cerication
Scan-Sense AS certies that the TC2000 complies with its published
list of specications at the time it was manufactured. Scan-Sense AS
also certies that its calibration measurements are traceable to
Norwegian Accreditation and to the calibration facilities of other
International Standards Organization (ISO) members. Scan-Sense AS
conrms that the TC2000 complies with the following standards:
EMC EN61326-1:1997+A1:1998: APP.A, immunity
test requirements for equipment intended for use in
industrial locations, as amended by EC Directive 9
2/31/Eec and the European Low Voltage Directive IEC
61010-1:90 + A1:92 + A2:95, amended by 93/68/EEC.
To ensure compliance, please use screened/shielded
serial communication leads (RS232).
1.2 Warranty
This product is guaranteed free from defects in material and
workmanship for one (1) year from the date of shipment. During this
warranty period, Scan-Sense AS will, as its option, either repair or
replace the TC2000 should it prove defective. The product must
be returned to a service facility designated by Scan-sense AS
for warranty service or repair (see our worldwide adress le http://
www.scansense.no). The foregoing warranty will not apply to defects
resulting from improper or inadequate maintenance by the purchaser,
purchaser-supplied software or interfacing, unauthorized modication
or misuse, operation exceeding the environmental specications for
the TC2000, or improper site preparation or maintenance. No other
warranty is expressed or implied by Scan-Sense AS, and Scan-Sense
AS shall not be liable for any direct, indirect, special, incidental or
consequential damages, whether based on contract, tort, or any other
legal theory.
1.3 Conventions used in this document
We have provided this section of the User’s Manual to help you
identify noteworthy symbols, terms and conventions used in this
manual. Look for the following:

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TC2000 user’s manual
CAUTION:
Is used when a procedure may cause damage to equipment
or affect operation
WARNING:
Is used when a procedure may cause personal injury to the
reader or other persons
A SYMBOL USED AS A WARNING
TO DENOTE A HAZARD
CONFORMITÉ EUROPÉENNE
GROUND OR EARTH
Terms and denitions:
The term “insert” is interchangable with “insert adapter” as an
equipment identier for the 2-inch diameter, 6-inch long aluminum
insert pleced into the temperature well.
We dene calibration as being able to compare the ability of the
equipment to perform to a known standard. Temperature calibration
provides a means of quantifying uncertainties in temperature
measurement in order to optimize sensor and/or system accuracy.
LCD is a term meaning a quarter (1/4) VGA LCD screen.
CARE is a memory jogger to ensure best results and safe use of
the equipment.
Connect only to the correct power voltage/frequency (read the label
in the case).
Always clean the temperature well and insert before use, and always
remove the insert from the temperature well before moving or tran-
sporting the TC2000.
Replace worm connection cables (only with approved connection
cables).
Earthed (or grounded) power sources only should be used.

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TC2000 user’s manual TC2000 user’s manual
1.4 Introduction to dry-block calibrators
Dry-block calibration units provide the reliable heat (or cold)
source needed to verify the accuracy of industrial sensors such as
RTDs, thermocouples, thermostats, bi-metal thermometers or liquid-
in-glass thermostats. The TC2000 is designed to provide all the
advantages offered by “dry well” temperature calibrators: Convenience
of size, weight, speed, portability temperature range, stability and
software interaction via RS232 communication port. It is also designed
to be “user friendly”.
The TC2000 has a numeric keypad, or softkey controls, for setting
the well temperature. Menus are used to dene other data for the
TC2000. The display shows the dened “Set temperature”
and the resulting “Reference temperature” for the well temperature.
Connection points at Channel A and B allow a variety of sensor hook-
ups and an RS232 connection for local PC or remote computer.
The dry well in the calibrator is heat or cold source, and a reference
thermometer. That is, the thermometer (or sensor to be tested)
is placed in the well and its reading is compared to the reading of the
temperature in the calibrator’s display. The calibrator’s display shows
both the dened temperature, as set by the operator, and the actual
temperature that is measured by the internal reference sensor in the
well.
Figure 1: Dryblockschematics
EXTERNAL REF. SENSOR TO BE TESTED
PELTIER ELEMENTS
HEATING BLOCK
CALIBRATOR DISPLAY
COMPARISON
INTERNAL REF.

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TC2000 user’s manual
2 Preparation
2.1 Unpacking and inspection
* Inspect the packing container for any sign of damage. If the shipping
cartong is damaged, contact the carrier/shipper.
* Remove the unit from its packing container and inspect it for visible
signs of damage.
* Check that the equipment received matches the inventory. Report
ny discrepancies to Scan-Sense AS’s designated agent.
* Record any discrepancies from the inventory and/or visible damage
to the unit; see Figure 3 TC2000 orientation and location of items.
2.2 Items supplied with the unit
The cables, insert etc. that are used with the TC2000 are located in
compartments within the unit. The TC2000 Parts List identies each
by part name and part number.
TC2000 PARTS LIST
DESCRIPTION OF ITEM: (1 OF EACH ITEM)
* GLASS WOOL, 1 PACK
* TOOL, EXTRACTOR
* CABLE, MAINSPOWER, 100 VAC
DETERMINE TYPE REQUIRED, JAPAN
* CABLE, MAINSPOWER, 110 VAC
DETERMINE TYPE REQUIRED, USA
* CABLE, MAINSPOWER, 230 VAC
DETERMINE TYPE REQUIRED, EUR
* CABLE, MAINSPOWER, 230 VAC,
DETERMINE TYPE REQUIRED, UK
* CABLE, TEST, 1 SET
* USER’S MANUAL
* CALIBRATION CERTIFICATE
* RS232 CABLE
* CONNECTOR KIT

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TC2000 user’s manual TC2000 user’s manual
Aluminum inserts
- Dry Well
- Liquid lled (option)
Insert, aluminum, of 2“ x 6” or 50 mm x 150 mm diameter
and lenght with:
2 holes of 6.5 mm bore,
2 holes of 3,5 mm bore,
2 holes of 4,5 mm bore,
1 hole of 8 mm bore,
1 hole of 10 mm bore and
1 hole of 12 mm bore.
OPTIONAL ITEMS
Liquid-lled Insert, aluminium, of 2” x 6” or 50 mm x 150 mm
diameter and lenght with pop-off cap and impeller at bottom.
Insert, aluminum, blank of 2” x 6” or 50 mm x 150 mm ‘
diameter and lenght.
Oil to use with the Liquid-lled Insert.
CAUTION:
Care should be taken to avoid spillover into the temperature
well when using Liquid-lled Inserts. Use only recommended
oil/ liquids to ll the insert. Do not use glass wool with the
Liquid-lled Insert.

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TC2000 user’s manual
2.3 Input power connection
The required power is either 110 VAC or 230 VAC, 50/60 Hz. Always
connect the power cable supplied with your unit to a grounded or
earthed power outlet.
Figure 3. TC2000 Orientation and location of items.