Tempsens CALsys-15/110 Autocal User manual

Automatic
Low Temperature
Dry Block
Calibrator
( CALsys
-15/110 Autocal )
User's Guide
TEMPSENS INSTRUMENTS (l) PVT . LTD . UNIT ll
A-190, Road No.5, M.I.A., Udaipur-313003 INDIA
Ph . : [phone],
Fax : [phone]
Email : [e-mail]
Web : www.tempsens.com

Legal Disclaimer
The information contained in this document is the property of TEMPSENS .
TEMPSENS reserves the right to make changes to this document and to the product described herein
without notice . Before installing and using the product, review the latest version of the applicable
documentation, which are available from the Tempsens website at:
http://www.tempsens.com/
© 2021 Tempsens Instrument Pvt . Ltd . All Rights Reserved.
Document Information
Automatic Low Temperature Calibrator (CALsys -15/110 Autocal) User
Manual
1.0
Document Code TS.CS.001
Publish Date Monday, April 11, 2022
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Name
Document Version

Table of Contents
Preface........................................................................................................................................... 5
Safety Information........................................................................................................................ 5
Electrical Safety............................................................................................................................ 6
Health and Safety Instructions..................................................................................................... 7
Cautions and Preventions............................................................................................................. 8
Document Conventions............................................................................................................... 8
Chapter 1
Introduction....................................................................................................................................... 9
1.1 About CALsys -15/110 Autocal...................................................................................................... 9
1.2 Basic Working Model of CALsys -15/110 Autocal......................................................................... 10
1.3 Physical Measurements................................................................................................................ 11
1.4 Technical Specifications............................................................................................................... 12
Chapter 2
Setting Up CALsys -15/110 Autocal................................................................................................... 13
2.1 Installation.................................................................................................................................... 13
2.2 Optimal Environmental Conditions.............................................................................................. 13
2.3 Unpacking and Initial Inspection.................................................................................................. 14
2.4 Operating Instructions.................................................................................................................. 15
2.5 Initial Testing................................................................................................................................ 15
Chapter 3
Operation of HMI............................................................................................................................ 16
3.1 Turning on the Unit...................................................................................................................... 16
3.2 Heating up the source ................................................................................................................. 17
3.3 Operating Instructions................................................................................................................. 18
3.4 Cooling down the source............................................................................................................ 1 9
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Chapter 4
Operating of HMI........................................................................................................................ 20
4.1 CALsys -15/110 Autocal......................................................................................................... 20
4.2 In Manual Mode..................................................................................................................... 20
4.3 In Auto Mode.......................................................................................................................... 20
4.4 User interface of CALsys -15/110 Autocal ............................................................................. 21
Chapter 5
Digital Communication................................................................................................................ 25
Chapter 6
Software Installation................................................................................................................... 26
6.1 Installation............................................................................................................................. 26
Chapter 7
Service & Maintenance............................................................................................................... 30
7.1 Routine Service....................................................................................................................... 30
7.2 Replace the Controlling Sensor............................................................................................... 30
7.3 Replace Solid State Relay........................................................................................................ 30
Chapter 8
Troubleshooting CALsys -15/110 Autocal.................................................................................... 31
8.1 CALsys -15/110 Autocal unit does not turn on....................................................................... 31
8.2 CALsys -15/110 Autocal unit is not stable.............................................................................. 31
8.3 The temperature of the calibrator does not rise.................................................................... 3 1
Appendix A : Calibration Services .............................................................................................. 32
In House Calibration Facility..................................................................................................... 32
On-site Calibration Facility...................................................................................................... 33
Fixed-Point Calibration Facility................................................................................................ 33
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Temperature Calibrator (CALsys -15/110 Autocal)
User's Guide
Appendix B : Warranty ............................................................................................................... 35
Limit of Liability...................................................................................................................... 35
Caution in Using the Product.................................................................................................. 35
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Preface
Welcome to the Automatic Low Temperature Dry Block Calibrator (CALsys -15/110 Autocal) user guide.
This guide provides detailed information about all the product options and features, and explains how to
use the product and configure basic settings to suit your requirements.
This user manual contains information about the product and its proper use and should be kept in a place
where it will be easy to access.This user manual also provides safety precautions in using this product.
Safety Information
This topic contains important information regarding safety. Ignoring safety precautions may cause serious
personal injury or damage to the unit and/or its components . Use the equipment only as specified in this
manual . Otherwise, the protection provided bytheinstrument may be impaired .
Refer to the safety information in the Electrical Safety and Health and safety instructions sections or
wherever specified in this manual .
In order to assure the device operates safely, the operator needs to act effectively and be conscious of safety
problems.
The following definitions apply to the terms “Warning” and “Caution”.
· “Warning” identifies conditions and actions that may pose hazards to the user.
· “Caution” identifies conditions and actions that may damage the instrument being used.
The following safety symbols may appear on CALsys -15/110 Autocal unit:
SYMBOL DESCRIPTION SYMBOL
Risk of Danger . Important
information . See Manual
Caution, Hot Surface
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DESCRIPTION
Hazardous voltage . Risk of electric shock
Protective Earth Ground

Temperature Calibrator (CALsys -15/110 Autocal)
User's Guide
Electrical Safety
WARNING:
This equipment must be correctly grounded before use. Make sure the ground conductor wire
(colored green/yellow) in the main power cable is connected to a protective earth/ground . If the
equipment is not properly grounded, the high voltage may flow through the equipment body
(chassis) . SEVERE INJURY OR DEATH may result if personnel fail to observe safety precautions.
Do not remove the panels from the equipment without proper safety measures to avoid internal
main power supply voltage hazard.
To avoid possible electric shock or personal injury, follow these guidelines.
This equipment uses protective earth circuit to ensure that the conductive parts do not store electric
charges or conduct electricity if insulation fails.
Before connecting the equipment to the electricity supply, understand the parts of the calibrator with
the help of operating manual.
Use power cables only with appropriate voltage and power rating, and that are approved for usage in
your country.
Replace the main power cable if the insulation is damaged, or if the insulation shows signs of wear and
tear.
DO NOT put the product at the location where access to the main power is blocked.
DO NOT use an extension cord or adapterplug.
DO NOT use the product if it operates incorrectly.
Make sure the powercord does not touch the hot parts of the product.
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Preface
Health and Safety Instructions
WARNING: BURN HAZARD - DO NOT touch the well access surface of the unit at high temperature
To avoid possible health and safety concerns, follow these guidelines.
Wear appropriate protective clothing before using the equipment.
Operators of this equipment should be adequately trained in the handling of hot and cold items and
liquids.
Do not use the apparatus for jobs other than those for which it was designed, that is, the calibration of
thermometers.
Do not handle the apparatus when it is hot (or cold), without wearing the appropriate protective
clothing and having the necessary training.
Do not drill, modify or otherwise change the shape of the apparatus.
Do not use the apparatus outside its recommended temperature range.
After use, do not return the apparatus to its carrying case until the unit has cooled down.
There are no user serviceable parts inside. When required, contactTempsens agent for repair.
Ensure all materials, especially flammable materials are kept away from the hot parts of the apparatus,
to prevent fire risk.
Do not use the product around explosive gas, vapor, or in damp or wet environments.
Make sure that the space around the product meets minimum space requirements.
DO NOT turn off the unit at temperatures higher than 250°C. This could create a hazardous situation .
Select a set-point less than 100°C and allow the unit to cool before turning it off.
The top sheet metal of the furnace may exhibit extreme temperatures for areas close to the well
access.
Materials used in this furnace may be irritating to skin, eyes, and respiratory tract. Consult the material
manufacturer's Material Safety Data Sheet (MSDS) to learn about those materials before using.
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Temperature Calibrator (CALsys -15/110 Autocal)
User's Guide
Cautions and Preventions
To avoid possible damage to the instrument, follow these guidelines:
Before working inside the equipment, turn the power off and disconnect the power cord.
DO NOT turn the unit upside down with the inserts in place; the inserts will fall out of the unit.
Use of this instrument at HIGH TEMPERATURES for extended periods of time requires caution.
Completely unattended high temperature operation is not recommended for safety reasons.
DO NOT plug the unit into 230 V if the heater switches and fuse holder reads 115 V . This action will
cause the fuses to blow and may damage the instrument.
Components and heater lifetime can be shortened by continuous high temperature operation.
DO NOT use fluids to clean out the well.
Never introduce foreign material into the probe hole of the insert. Fluids and other materials can leak
into the calibratorcausing damage.
DO NOT drop or force the probe stems into the well. This type of action can cause a shock to the sensor
and affect the calibration.
Document Conventions
The documentation uses thefollowing conventions.
Note: Configuration notes
Recommendations or suggestions
Information regarding required or default configuration settings and product
limitations
Critical actions and configuration options
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Tip:
Important:
WARNING:
WARNING:

Chapter 1
Introduction
1.1 About CALsys -15/110 Autocal
CALsys -15/110 Autocal has been designed to provide stable and accurate temperature to enable
professionals tocalibrate temperature sensing devices by comparison method. It is designed to be
rugged and easily maintained. This model provides an isothermal enclosure (aluminum block) in
which the thermocouple/RTD can be calibrated against the temperature of the calibrator.
For traceable calibration, a master calibration sensor should be placed into the aluminum block
alongsidethe unit under calibration. This method is widely accepted because the calibrator provides
very stable temperature nearing to its controlled point, that is, the Master Thermocouple/RTD. The
controlled point is calibrated by independent laboratory in compliance to the national standards,
and compares the sensorunder calibration.
The CALsys models are part of wide range of portable calibrators designed and made by Tempsens.
Contact Tempsens to learn more about other products by Tempsens.
Front View Back View
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Introduction
1.2 Basic Working Model of CALsys -15/110 Autocal
The calibrator controller uses a precision RTD as a controlling sensor and controls the well temperature
with thermoelectric cooler. To obtain and maintain a required temperature the controller varies the
power to the Peltier Cell via solid-state relay. There is one electricity driven fan which is situated
under the heating chamber for cooling the heater. The CALsys -15/110 Autocal was designed for
portability, moderate cost and ease of operation. With proper use the instrument should provide
continued accuratecalibration of temperature sensors and devices. The user should be familiar with
the safety guidelines andoperating procedures of the calibrator as described in the User's Manual.
Desired
Temperature
The calibrator controller uses a precision PT-100 as a controlling sensor and controls the well
temperature with thermoelectric cooler. The CALsys -15/110 Autocal was designed for portability,
moderate cost and ease of operation. With proper use, the instrument should provide continued
accurate calibrationof temperature sensors and devices.
Important:
Before using the equipment, read the safety guidelines and operating procedures of the calibrator as
described in the of this user manual.
The basic working model for CALsys -15/110 Autocal is as follows:
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Current
Source
Controller
Multimeter
Peltier
Cell

Introduction
1.3 Physical Measurement
CALsys -15/110 Autocal has the following physical measurements:
Height: 383 mm
Width: 230 mm
Depth: 304 mm
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Introduction
1.4 Technical Specification
CALsys -15/110 Autocal has the following technicalspecifications:
PARAMETER SPECIFICATION
Temperature Range -15°C to 110°C
Resolution 0.1°C
± 0.03°C at -15°C
Stability ± 0.05°C at 0°C
± 0.07°C at 110°C
± 0.05°C at -15°C
Radial Uniformity ± 0.07°C at 0°C
± 0.09°C at 110°C
Insert OD dimensions 24 mm
Immersion depth 120 mm
Heating time 10 Minutes
Cooling time 25 Minute (110°C to -15°C)
Method of control Self tunned PID controller
Display LCD,°C or °F user-selectable
Size (HxWxD) 383(H) x 230(W) x 304(D) mm
Weight 12 kg
Power requirements 230 VAC,500 W (50 Hz)
Computer interface
LAN cable
Calibration Accredited calibration certificate provided(Optional)
Environmental operating conditions 0°C to 45 °C, 0% to 90% RH (non-condensing)
Specifications valid in environmental conditions 13°C - 33°C
Input {CALsys -15/110 Autocal) Four channels (one master and three test sensors) .high
quality universal LEMO connector suitable both for T/C
(J, K, N, T,R,S,B type) and Rtd
Software CALsys -15/110 Autocal) The calibrator will be provided with software for data
recording (Manual Mode) and Test Certificate genration
in Auto Mode
Data logging (CALsys -15/110 Autocal) Data logging facility with logged data export to
computer through LAN port (optional USB)
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Chapter 2
Setting up CALsys -15/110 Autocal
2.1 Installation
Place the dry block on a flat surface with at least 10 inches of free space around the instrument. Overhead
clearance is required .
DO NOT Place this unit under a cabinet or structure. Plug the power cord into a grounded mains outlet
located on the controlling unit rear panel. Observe that the nominal voltage corresponds to that indicated
in the technical specifications in Technical Specifications in Chapter 1 of this user's guide.
2.2 Optimal Environmental Conditions
Although the instrument has been designed for optimum durability and trouble-free operation, it must be
handled with care . The instrument should not be operated in an excessively dusty or dirty environment .
Refer to Chapter 7, Service & Maintenance in this user's manual for routine service and cleaning
recommendations.
.The instrument operates safely under the following conditions:
 Temperature range: 5 - 50°C (41 - 122°F)
 Ambient relative humidity: 15 - 50%
 Pressure: 75kPa - 106kPa
 Main voltage supply within ± 10% of nominal voltage range
 Vibrations in the calibration environment should be minimized
 Altitude less than 2000 meters
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Setting up CALsys -15/110 Autocal
2.3 Unpacking and Initial Inspection
CALsys -15/110 Autocal is packed in custom-designed packaging to send out your unit . Unpack the furnace
carefully. Inspect the unit after unpacking for any signs of damage, and confirm that your delivery is in
accordance with the packing note. If you find any damage to the unit or an item is missing, notify Tempsens
immediately.
The following accessories are included in the package:
CALsys -15/110 Autocal
Power cord
External Reference Sensor
 Block
Tool for Insert
Manual
Certificates
Ceramic Wool
Lemo Connector 4 nos.
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CALsys -15/110 Autocal External Reference Sensor Block Lemo Connecter Cable
LAN cable Insulation Wool Tool for Insert Power cable
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Setting up CALsys -15/110 Autocal
2.4 Operating Instructions
1 . Open the carrying case carefully and takeout the operating manual from the box and read carefully.
2 . Take out the Temperature Calibrator unit carefully and keep it at suitable place.
3 . Connect the power cable to the rear power entry and the power plug to the main power outlet.
4 . Turn the switch on, and observe the display on the controller. The display shows that the bath is ready for
use.
5 . Keep the switch in the ON position.
6 . Ensure the metal INSERT is properly inserted inthe Calibration box.
7 . Keep the fan in ON position.
8 . If the fan is running and temperature of the furnace is rising, the Calibration box is in healthy condition.
Note:
The unit must be correctly connected to the electricity supply.
The unit must be correctly grounded.
The unit's ON/OFF switch is located on the power inlet . DO NOT switch OFF the unit when it is hot .
Keep the unit running until cooled.
2.5 Initial Testing
This unit is fully tested before dispatching. However, verify its operation asfollows:
1 . After connecting the CALsys -15/110 Autocal to the electricity supply, the temperature controller
display should show the temperature of the chamber, and the last set-point value. The fan on the bottom
should be heard running.
2 . Change the set-point to 250°C and observe that the block temperature rises and settles to this value.
3 . If the unit performs as expected, the unit can now be used for calibration.
If any problems or faults arise during the test, contact Tempsens immediately for help and advice.
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Chapter 3
Operating CALsys -15/110 Autocal
3.1 Turning On the unit
1 . Before plugging the unit to main power outlet, ensure that the voltage, frequency and current from the
main power outlet are within the recommended rages (typically: 230 VAC±10, 50/60 Hz) .
2 . Plug the back main power cord into main outlet .
3 . Turn the controller on using the switch located on the back section, and set the temperature value
in the controller. The Calibrator will turn on and begin to heat the previously programmed temperature
set-point.
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Operating CALsys -15/110 Autocal
Sensor Connection for CALsys -15/110 Autocal: The Calibration system provides calibration up to four
channels i.e. one master and three test sensors - We use high quality universal LEMO connector i.e. suitable
both for T/C and Rtd.
Connection for Third TEST Sensor
Connection for Second TEST Sensor
Connection for First TEST Sensor
Connection for MASTER Sensor
3.2 Heating up the source
Press “UP”or “DOWN” key of controller to change the set-point value. The controller switches the
calibrator heater to ON or OFF to raise or lower the temperature. The displayed temperature will gradually
change until it reaches the set-point temperature .
The Calibrator may require 15 minutes to reach the set-point depending on the span. The unit takes 15 to
20 minutes more to stabilize the bath temperaturewithin ± 0.1°C of the set-point
Note:
All other controller parameters are set to default, and are locked . It is recommended not to change
these parameters.
Important:
When the source is operated at any temperature above ambient temperature, the front face and plate
become hot.
Always put the fan in "ON" condition and do not switch off the main power supply directly . Before
tuning the unit off, set the controller to lower temperature,and then wait until the temperature drops
below 25°C.
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Operating CALsys -15/110 Autocal
3.3 Operating Instruction
1 . Connect the CALsys -15/110 Autocal to a suitable power supply.
2 . Place the metal insert in the Calibrator.
3 . Place the sensors for calibration and master sensor into a suitable insert hole.
4 . Set the controller to the requiredtemperature .
5 . If test and master sensor are thermocouple, then always use compensating cable (for each type such as J,
K, T, E, N, R, S, B) for interconnection between sensor and Digital Multimeter (DMM).
6 . Keep reference junction at 0°C. If keeping at 0°C is not possible, then add millivolt (mV) of room
(ambient) temperature with sensorsoutput (mV) to compensate the ambient temperature.
7 . When controller temperature becomes stable, record the reading from DMM with at least 41/2 digit
precision, which should be calibrated for the measuring range (mV & ohms measurements).
8 . Find out the error by comparison method.
9 . Reset the controller and/or repeat the calibration for another calibration point or for another sensor.
10.When the calibration is completed, reset the controller to 0°C . Before moving CALsys -15/110 Autocal
to new location the unit must be cooled to below 250°C.
100.00 100.00
Temperature Block
Insert
Test Sensor
Controlling Sensor
Radial Homogeneity
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Loading Effect
Stability
Master Sensor
Axial Temperature
Homogeneity

Operating CALsys -15/110 Autocal
Note:
Metal Insert should be of required hole size so that the hole size is suitable for sensor under calibration.
Always use a master sensor (master RTD/TC) for comparison calibration method.
Place the metal insert first in all sensors, and then set the controller at desired set point.
Check that all sensors (test and master) are immersed at same depth in insert (metal block).
If sensors are not immersed at same depth than there will be an error in temperature reading.
Always use a metal block calibrator (insert). Metal block calibrator heat transfer characteristics should
match with those in the normal measuring situations.
The temperature sensors should be long enough to immerse completely in the calibration bath. Errors
due to stem conduction can be ignored.
Do not change the set temperature value too often. For example, you set the temperate initially at
100°C, and when it reaches at 80°C, you change the temperature to 30°C. Or, you set the temperature
initially at -10°C, and when it reaches close to -5°C, you change the temperature to 50°C. Doing so
may affect unit's performance.
Plan the calibration point by gradually increasing temperature, then set the controller accordingly. This
method will save the time.
Take the reading of sensors (master and test) at stable temperature with the help of digital multi-
meter, or by using Tempsens' TEMPMET 08 or TEMPMET 09 for reading RTD or TC sensor.
3.4 Cooling Down the Source
Before transporting the metal block, ensure that the temperature of bath has cooled sufficiently.
If you require metal block to cool quickly, set the temperature to the room temperature (ambient
temperature).
Always cool the heated instrument to ambient temperature before disconnecting it from the mains,
switching it OFF, or removing the temperature sensor or test item.
Always keep the heated instrument supervised and under observation until it cools down sufficiently.
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