Tamson Instruments TLV25 User manual

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MANUAL
TLV25
KV40
KV80

Tamson Instruments bv, van 't Hoffstraat 12, 2665 JL Bleiswijk, Netherlands . +31(0)10 – 522 43 73 Fax. +31(0)10 – 521 19 41
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Safety and Warnings
Make sure you read and understand all instructions and safety precautions listed in this manual, before
installing or operating the equipment. If there are any questions concerning the operation of the equipment or
about the information in this manual please contact your local dealer or our sales department first.
Performance of installation, operation or maintenance other than those described in this manual may result in
a hazardous situation and may void the manufacturers warranty.
Never operate equipment that is not correctly installed. Unqualified personnel must not operate the
equipment. Avoid damage to the equipment, or its accessories, caused by incorrect operation.
Important:
-When performing service, maintenance or moving the apparatus, always disconnect the line cord of
the apparatus,
-Proper skilled and trained personel is only allowed to operate this equipment,
-Take notice of warning labels and do not remove them,
-Refer service and repairs to qualified technician,
-If a problem persists, call your supplier or Tamson Instruments bv
Warranty
Tamson Instruments bv warrants that all equipment manufactured by it shall be free from defects in material
and workmanship, which might impair its usefulness. Tamson Instruments bv. does not warranty that the
equipment is fit for any particular use. The manufacturer is only responsible for the security, reliability and
performance of the equipment, if the unit is operated in accordance with the operating instructions,
extensions, adjustments, and when changes or repair is performed by Tamson Instruments bv or authorized
persons only. This warranty is limited to one year from date of invoicing. All equipment and materials are
further subject to tolerances and variations consistent with the usage of the trade.

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Contents
SAFETY AND WARNINGS.......................................................................................2
Warranty .................................................................................................................................................. 2
VISCOMETER BATH TLV25 ....................................................................................5
EC declaration of conformity TLV25......................................................................................................... 5
Delivery checklist ..................................................................................................................................... 6
The TLV25, general ................................................................................................................................. 7
Installation ............................................................................................................................................... 8
Filling and Bath liquids ............................................................................................................................. 8
Cooling .................................................................................................................................................... 9
Heating .................................................................................................................................................... 9
Operating the controller ........................................................................................................................... 9
Operation .......................................................................................................................................... 10
Quick start......................................................................................................................................... 10
What is tuning ................................................................................................................................... 11
Automatic tuning................................................................................................................................ 12
Manual tuning.................................................................................................................................... 13
Manual tuning by Ziegler-Nichols ...................................................................................................... 13
Setting the cutback values................................................................................................................. 14
Faultfinding ............................................................................................................................................ 15
Technical Specs TLV25 ......................................................................................................................... 16
Spare part list TLV25 ............................................................................................................................. 17
Part number........................................................................................................................................... 17
115 Volts................................................................................................................................................ 17
CRYOSTAT KV-SERIES ........................................................................................18
EC declaration of conformity cryostat..................................................................................................... 18
Cryostat, Installation and use................................................................................................................. 19
Cryostat fails to operate ......................................................................................................................... 19
KV40 Cryostat........................................................................................................................................ 20
Technical Specs KV40 ...................................................................................................................... 21
Using the KV for other cooling purposes ........................................................................................... 21
Ordering codes KV40 ........................................................................................................................ 22
Spare part list KV40 .......................................................................................................................... 22
Part numbers ......................................................................................................................................... 22
Principal diagram KV40..................................................................................................................... 22
KV80 Cryostat........................................................................................................................................ 22
KV80 Cryostat........................................................................................................................................ 23
Technical Specs KV80 ...................................................................................................................... 23
Using the KV for other cooling purposes ........................................................................................... 23
Ordering codes KV80 ........................................................................................................................ 24
Spare part list KV80 .......................................................................................................................... 25
Part numbers ......................................................................................................................................... 25
Principal diagram KV80..................................................................................................................... 26
DISCLAIMER..........................................................................................................26

Tamson Instruments bv, van 't Hoffstraat 12, 2665 JL Bleiswijk, Netherlands . +31(0)10 – 522 43 73 Fax. +31(0)10 – 521 19 41
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Tamson Instruments bv
van 't Hoffstraat 12
2665 JL BLEISWIJK
The Netherlands
We wish to thank you for the purchase of this Tamson Thermostatic Bath.
You have bought an instrument with the latest technology.
For a fast settlement of the one-year warranty, please return this warranty certificate as soon as possible to
the following fax number [phone] or the above mentioned address.
Model Thermostatic bath : ………………………………………………………….
Name of your company : ………………………………………………………….
Name of user : ………………………………………………………….
Address : ………………………………………………………….
……….………………………………………………….
……….………………………………………………….
……….………………………………………………….
Tel. nr. : ……….………………………………………………….
Serial number : ……………………………….
Mains voltage: …………….. Mains Freq.: …………………Hz
Date of delivery : ……………..
Name of dealer: ……….………………………………………………….
……….………………………………………………….
………………………………….……………………….
Signature: …...………………………

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Viscometer bath TLV25
EC declaration of conformity TLV25
Manufacturer: Tamson Instruments bv
van 't Hoffstraat 12
2665 JL Bleiswijk
The Netherlands
Product: Constant temperature bath
Model: Tamson TLV25
The products to which this statement relates, is manufactured and dully carried out in compliance with the
provisions of Directive 89/336/EEC on the approximation of the laws of the Member States relating to
electromagnetic compatibility.
The products are in conformity with the following specification:
EN 50081-1 : 1992
EN 50082-2 : 1995
EN 61000-3-2 : 1995
EN 61000-3-3 : 1995
and distracted from the test certificate of the Tamson TLC3 system
Tamson Instruments bv, The Netherlands
Ing. R.C. van Hall
Director

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Delivery checklist
TESTING DATE
TEST TEMPERATURE
READING WITH CALIBRATED THERMOMETER °C
TEST LIQUID
REGULATOR TYPE
POWER SUPPLY DURING TEST 230 V 115V 50 Hz 60 Hz
SAFETY CUT-OUT TESTED "DYNAMIC"
WIRING SECURED WITH TY-WRAP'S
MOTORFUSE TESTED
CONDITION MOTOR
The undersigned declares that the figures and test results mentioned in this
delivery checklist are the same as mentioned in the production checklist which
was filled-in during the assembly and testing of the bath mentioned above.
For sign please check separate calibration certificate.

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Cooling TLV25 with KV40 and KV80
[Ref
TLV25_15.XLS]
-70.000
-60.000
-50.000
-40.000
-30.000
-20.000
-10.000
0
10.000
20.000
30.000
0:00 0:30 1:00 1:25 2:00 2:30 3:00 3:30 4:00 4:30 5:00 5:30 6:00 6:30 7:00 7:30 8:00
Time [hrs]
Temp °C
KV80
KV40
The TLV25, general
The Tamson model TLV25, low temperature viscometer bath is designed to perform a variety of accurate
temperature controls for e.g. low temperature viscosity measurements.
The TLV25 system contains a 25 liter Dewar flask. The fluid in the flask must permanently be cooled by an
external cryostat. The temperature set point is maintained via a microprocessor controlled heating element.
Depending on the type of cryostat used, minimum end temperatures of minus 30°, -60°C or -80°C can be
reached. Temperatures are measured in 25 liters of Methanol with the KV40 and KV80 cryostats. At these
minimum temperatures still enough energy is provided to maintain stable temperature when glas work is
placed in the bath. The system accuracy conforms to ASTM D445 and ISO 3103 description. The bath is
inside illuminated by a fluorescent light build-in behind the Dewar flask.
The cryostat is a separate apparatus and must have enough capacity to cool 25 ltrs of liquid. It is further
important that the cooling power supplied by the cryostat is very stable. It is for these reasons that we
strongly recommend a combination of the TLV25 with the KV40 or KV80.
Span
Depending on the used cryostat:
- Minus 30°C with KV40
- Minus 60°C with KV80
-Minus 80°C with KV80S
-Lower temperatures on request
Accuracy
The set point can be set in steps of 0,1°C
from - 90°C up to plus 70°C. Overall
system accuracy is better than ±0,04°C.
Read-out is on a 4 digit, 7 segment LED
display in 0.1 °C. On request read-oud
also is available in °F.
Safety thermostat
To prevent problems caused by a
malfunctioning of the heating element the
bath is equiped with a safety thermostat.
This thermostat can not be adjusted, and
has a fixed preset value of 125°C. When for
any reason the temperature of the bath will raise to this limit

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the safety thermostat will cut the mains supply
Circulation pumping device
The bath is equipped with a special stirrer-pump combination which ensures a good uniformity.
Condensation prevention
To prevent build up of condesat onto the cold surface of the window, surface heaters have been installed
around the window.
A temperature sensor on the window keeps the surface temperature of the window just above the dew-point
under ambient conditions of up to 40 °C and 85% RH.
Illumination
An illuminator providing diffused fluorescent light for background lighting is mounted on the roar of the bath. It
can be switched on and off with the switch-lamp on the control panel.
Top plate
The bath is supplied with a round lid with 3 holes 50 mm diameter to accept 3 capillary type viscometers in
holders. Behind each viscometer position there is an opaque glass plate for easy reading of viscometer.
Installation
Tamson baths are carefully packed when they leave the factory to avoid damage during transport.
Check the packing for any external damage and make a note on the shipping documents if any damage is
found. Always retain the cartons and packing material until the bath has been tested and found in good
condition, because transport companies generally will not honour a claim for damages if the respective
box(es) is (are) not available for examination.
- Clean inner bath thoroughly of any loose packing materials etc.
- Place the bath in a level position.
- Check operating voltage (230 V or 115 V) and connect the bath to appropriate mains supply. The bath has
to be filled with a liquid suitable for operating temperature.
WARNING: Never operate the bath without fluid !!!!
Filling and Bath liquids
Fill the bath up to 5 -10 mm below the lid. At no time should the bath level be allowed to fall 60 mm of the top
plate. Depending on the bath temperature we advise the use of methanol as bath fluid.
Use a mains supply that is well earthened and clean o inter erens and can carry
the load o the bath. Be sure to check the power requirements (230V / 115V)
marked on the tag plate at the back side o the bath.
When using a Cryostat KV80 or KV40, the use o the mixture water
and ethyleneglycol is not recommended because o the high capacity o the cooler.
(ice will grow on the evaporator causing poor heat exchange and unstable
temperature control
)

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Cooling
Low temperatures are reached with the use of a cryostat (immersion cooler). The top-plate
of the bath provides a hole of 50 mm diameter to accept the evaporator of
the immersion cooler. To reach temperature stability which conforms ASTM D445 only use the KV40 or KV80
as cryostat.
Heating
To reduce temperature fluctuations the cryostat provides stable cooling. To settle the bath temperature at a
fixed set point a microprocessor controlled stainless steel heater regulates the temperature.
Operating the controller
The front panel layout of the controller is drawn below.
Model 2216 front panel layout
Number Description
1 Output 1
2 N.A.
3 Set point active
4 N.A.
5 N.A.
6 Page button
7 Scroll button
8 Down button
9 Up button
10 Set point rate limit active
11 Lower readout
12 Upper readout
When the controller is activating the heater the indicator on the controller "OP1" will blink.
2216
OP1
OP2
SP2
REM
RUN
MAN
1
4
3
2
5
6 7 8 9
10
11
12

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Operation
The front panel layout shows following 4 operating keys:
Page
List
Down
Up
The “Page” Key offers following:
• Temperature readout in °C,
• Temperature set point in °C, value between –90 and +60°C,
• Tuning the bath (“Atune”),
• Changing the tuning (PID) parameters,
• The ”List” Key will list the P, I, D, High Cutback and Low Cutback options,
• Changing the temperature calibration offset,
•Programming the bath(ACCS).
*
This menu item has only been build in for servicing purpose and should
not be used by users.
Up and Down keys allow changing the listed value. All changed values like set point and PID parameters will
be kept in memory even after switching of the power supply.
Quick start
To start operating the bath in a quick way do following:
•Fill the bath with fluid until the level reaches 10 to 20 mm under the top plate,
• Place the power plug,
•Place cold finger/cryostat,
•Switch the bath on with the mains switch,
• Choose a working temperature (set point) with and ,
•Switch on the cryostat.
•Wait until the bath has reached its set point and choose ATUNE by pressing ,
•Now press and the display shows ”tune”,
•Press to choose “ON”,
•Press and together, the display will now alternate the values “tune” and the actual temperature,
•After a short period, depending on the set point temperature, the blinking of “tune” will stop and the bath
is ready for use.