LR-Cal FLUID 100-N User manual

Rel. 20140812
Operang Manual
LR-Cal FLUID 100
FLUID 100-NLR-Cal
Portable temperature calibraon bath
DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL
Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
1

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
2
Page
1. Safety instrucons 3
1.1 Used symbols 3
1.2 Warning 3
2. Technical data 6
2.1 Purpose and summary of instrucons 6
2.2 Name of the product 7
2.3 Technical data 7
2.4 Intended use 8
2.5 Quanty 8
2.6 Manufacturer 8
2.7 Correspontent data sheet 8
2.8 Drawing 9
2.9 Scope of standard delivery 11
2.10 Oponal Accessories 12
3. Calibraon media 13
3.1 Liquids 13
3.1.1 Recommended temperature field 13
3.1.2 Viscosity 14
3.1.3 Thermal expansion 14
3.1.4 Life span 14
3.1.5 Bath filling 14
3.1.6 Srrer adjustment 15
3.1.7 Posioning of the probes 15
3.1.8 Recommendaons 16
4. Installaon and Operaon 17
4.1 Installaon 17
4.1.1 Removal of packaging 17
4.1.2 Posioning the temperature calibrator 17
4.1.3 Power supply 17
5. Operang the calibrator 18
5.1 Elements of the front panel 18
5.2 Descripon of the instrument 19
5.2.1 Thermoregulator 19
5.2.2 Main switch 19
5.2.3 Carrying handle 19
5.2.4 Liquid container 19
5.2.5 Internal reference probe 19
5.3 Operaon 19
5.4 Use of the funcons 22
5.4.1 Reading external probes - only -2I versions 22
5.4.2 Switch test 23
5.4.3 Serial communicaon RS232 23
6. Maintenance 24
6.1 Periodical Maintenance 24
6.2 Connous Maintenance 24
7. Typical faults 26
8. Descripon of the front panel 27
9. Descripon of the Funcon Menu Levels 28
9.1 Funcons of the 1. Funcon Menu Level 29
9.2 Funcons of the 2. Funcon Menu Level 31
9.3 Funcons of the 3. Funcon Menu Level 32
10. Recalibraon of the LR-Cal temperature calibrator 35
10.1 Calibraon of the internal probe 35
10.2 Calibraon of the "EXT" and "REF" inputs with a signal calibrator - only-2I versions 36
10.3 Calibraon of the "REF" input with a reference probe connected - only -2I versions 36
11. Communicaon protocol RS232/C 38
12. Instrucons for oponal Accessories 41
12.1 Instrucons for Metal Dry Block Insert Kit 41
12.2 Instrucons for the Extension Tube for increasing the inseron depth 42
13. Declaraon of Conformity 43

1. Safety instrucons
1.1 Used symbols
WARNING!
Hot surface or part.
CAUTION!
Indicates a potenally dangerous situaon, that can result in injuries or damage
to equipment, personnel or environment, if not avoided.
DANGER!
Idenfies hazards caused by electric power. Should the safety instrucons not be
observed, there is a risk of serious or fatal injury.
This instrument must not be disposed of in domesc waste. The disposal is carried
out by return to the manufacturer of by the corresponding municipal authories
(see direcve 2002/96/EC).
1.2 Warning
CAUTION!
Hazardous voltage are present in this electrical equipment during operaon.
Non-observance of the safety instrucons can result in severe personal injury
or property damage.
Only qualified personnel should work on or around this equipment aer
becomming familar with all warnings, safety noces and maintenance procedures
contained herein. Only qualified personnel or our personnel should work on this
equipment for maintenance operaon.
The successful and safe operaon of this equipment is dependent on proper
handling, operaon and maintenance.
Do not use the instrument for any applicaon other than calibraon of temperature
any other use of the instrument may cause hazards to the user.
Use the instrument only in normal environmental condions.
Where not specified, the numbers in parentheses in this manual refer to the drawings on page 9
and 18.
DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL
Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
3

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
4
WARNING!
Due to the fact that the temperature calibrator is a portable instrument, it is very
important to ensure that the socket has been earthen correctly when connecng
it to the electricity supply.
Carry out the mainentance and any repair operaon only with the equipment at
ambient temperature and disconnected from the electric power.
During the use of the temperature calibrator, the upper protecon grid may
overheat.
Do not touch the probe to calibrate when it is in the fluid reservoir.
Never change the configuraon parameters (3. Funcon Menu Level).
Do not operate the instrument in an excessively wet, oily, dusty or dirty
environment.
Do not connect any voltage to the input bushes (4), (5), (15).
Remove the cover before switching on and do not put it back unl the liquid has
reached ambient temperature and the temperature calibrator is turned off.
With the with silicon oil 47V5 verwenden absolutely do neverFLUID 100-NLR-Cal
exceed the maximum temperature of +130°!
This equipment adopt the following devices to protect operaon from hazard:
• Protecon fuse (3).
• Thermal fuse to protect the container in case of over-temperature.
• Ground conductor.
Follow this instrucons:
• Never put anything on the top of the temperature calibrator.
• Never put fuel objects (liquids) near the calibrator.
• If the temeprature calibraon bath is operang at high pressure, a fume hood should be used
to remove any vapours given off by the hot bath fluid.
• Never put any type of liquids unless water-glycol (50%) or silicon oil inside the reservoir.
• Use common sense any me.
Aer any use at high temperature, bring the Set Point to room temperature le ng the
temperature calibrator go ll it‘s cold.

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
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MANUAL
Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
5
Aer any extended use at a temperature below zero:
• Bring the Set Point to about 95...100°C le ng the temperature calibrator work
ll the water inside the oil has completely evaporated.
Using the temperature calibrator at a temperature below zero for a long me
with high environmental humidity needs it takes a long me to evaporate the
whole water inside the oil (mor than one hour could be necessary).
Air humidity when the oil has a low temperature condenses on oil surface in the
shape of ice crystals.
At 95...100°C the formaon of foam means that the water inside the oil has
evaporated.

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
6
2. Technical data
2.1 Purpose and summary of instrucons
This manual contains the use and maintenance instrucons valid for the following equipment:
Portable Temperature Calibraon Bath and .FLUID 100 FLUID 100-NLR- LR-Cal Cal
The instrucons reported in this manual, for the above menoned equipment, are those relevant
to:
• Start-up preparaon
• Operaon descripon
• Using the equipment
• Re-calibraon procedure
• Prevenve maintenance
• Typcial faults and their remedies
Users must observe all the usual safety rules out in this manual for own security and to avoid
equipment failure.
Order-Code model : FLUID100 (without measuring inputs)FLUID 100LR-Cal
Order-Code model : FLUID100-2I (with 2 measuring inputs)FLUID 100-2ILR-Cal
Order-Code model : FLUID100-N (without measuring inputs)FLUID 100-NLR-Cal
Order-Code model : FLUID100-N-2I (with 2 measuring inputs)FLUID 100-N-2ILR-Cal

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL
Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
7
2.2 Name of the product
Portable temperature calibraon bath resp. , includingFLUID 100 FLUID 100-NLR- LR-Cal Cal
standard accessories as per chapter 2.9.
2.3 Technical data
• Structure in flanged iron plate with handle
• Microprocessor operated temperature regulator
• Switch test
• Internal oven in stainless steel
• Electronic control components thermally insulated
• Forced air cooling system
• Socket with main cable and protecon fuses
• Electromagenc compability: Emission EN50081-2
and Immunity EN50082-2
Environmental temperature range: +5°C…+45°C
Environmental humidity range: 10… 0% r. .8h
Operave temperature range:
model FLUID 100LR-Cal -12°C…+125°C
model FLUID 100-NLR-Cal -12°C…+140°C
Stability: at -10°C ±0 03°C.
at +121°C ±0 02°C.
Display resoluon: 0 01° / 0 1°. . switcheable
Me 100°C):asuring accuracy (at ±0 15°C.
Intern :al reference sensor Pt 100 lass A DIN 43760c
Version :-2I with 2 measuring inputs Pt 100 nd hermo K, J, T, N, E, S Ra t couples type and
Temperature :unit °C, °F, K, switcheable
Interface: RS232
Calibraon bath: 60 x 170 mm, 55 mmaccess opening diameter
Ccyapa it 50 cl
Usable liquids: Silikon , y ol-oil g c water mixtures
Ramp :funcon Min. 0 1°C / min..
Max. :ascent rate 4°C / min. (-10°C…+100°C)
Max. rate:descent 6°C / min. (+125°C…+30°C)
1,5°C / min. (+30°C…-12°C)
Thermostat :switch test 12 Vcc
Supply: 230 VAC ±10% 50/60 Hzat
(oponal: 115 VAC ±10%)
Power: 300 VA
Fuse: 2 5 A yp F (3 0 A 115 VAC). t e . for supply version
Dimension: 160 x 330 x 370 mmheight
Weight: 10 kg ( . 17 kg in l. )approx c packing
NOTE:
All stated values are based on:
• Ambient temperature +20°C
• Supply 230 VAC ±10%
• Silicon oil type 47V5
• Pt 100 with 6 mm diameter
Valid for one year, then
recerficaon recommended.

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
8
Controller Data:
Display 2 lines (3.2 x 5.5), with back light
Microprocessor: 80C522 (80C51 family, CMOS)
Memory: 8K SRAM (ultra-low-power SRAM, crystal, power-fail control and ba ery
A/D converter: 24 bit
E2PROM-memory, serial communicaon RS232 insulated.
2.4 Intended use
The portable temperature calibrator and is usable forFLUID 100 FLUID 100-NLR- LR-Cal Cal
following applicaons:
• Check and calibrate temperature sensors, in the laboratory or in the field, in conformity to
ISO 9000 standards.
• Check and calibrate thermostats with LED indicaon when electric contact closes.
• Thermal tests on materials
The temperature calibrator has been designed to reduce the EMC effect in accordance with the
harmonised regulaon for residenal, commercial, light industry and heavy industry.
NOTE: With oponal PC soware AQ2sp the temperature calibrator can carry out:
• Complete control of the calibrator from PC
• Manual or automac calibraon of one or more probes (test items)
• Cyclic life or stress test on temperature sensors
• Test of thermostats to check the opening and closing of the switch
• Filling and prinng of the results optained, guaranteeing that the ISO 9000 standars are
observed.
2.5 Quanty
1 piece
2.6 Manufacturer
DRUCK & TEMPERATUR Leitenberger GmbH, Bahnhofstr. 33, D-72138 Kirchentellinsfurt,
Germany. www.LR-Cal.net
2.7 Correspondent data sheet:
„FLUID“

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL
Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
9
2.8 Drawing

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
10
Electrical drawing

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL
Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
11
2.9 Scope of standard delivery
1 bo le silikon oil 47V5 at model FLUID 100LR-Cal
1 bo el silikon oil 47V10 at modell FLUID 100-NLR-Cal
Cover for transport and emptying
Accessories for transport and emptying
Cover with holes for two probes
Holders for probes (opmized for glass thermometer)
Electrical power cable
Spare fuse
only version: Clamps for probes-2I

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
12
Cables for thermostat- / switch-test
So bag
Operang manual
Test cerficate (accuracy, stability, final check)
2.10 Oponal Accessories
Order-Code: FLUID-INS-9 or FLUID-INS-0
Kit to convert to metal dry block calibrator
Order-Code: FLUID100-ER
Extension tube to increase inseron depth of the reservoir to 230 mm
Order-Code: 599.0.000.0003.0
PC soware AQ2sp incl. RS232 interface cable

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL
Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
13
3. Calibraon media
CAUTION
The temperature calibrator has been configured in the factory with the
parameters that opmize the performance of the equipment. Modificaon of
these parameters (3. Menu Funcon Level) can cause malfunconing or
breakage of the equipment with consequent risk of damage to objects or
injury to persons.
Before filling the reservoir, be aware of fundamental facts regarding the liquids that can be used!
3.1 Liquids
The and temperature calibrator is suitable in a field fromFLUID 100 FLUID 100-NLR- LR-Cal Cal
temperature from -12 up to 125° resp. to 140°C; different liquids can be put into the bath but not
many can work on the enre calibrator field.
Before using the temperature calibrator check the temperature field of the liquid to be used and
always remain under the safety limits. The upper temperature limit is condioned by vaporisaon,
smokiness, flammability and chemical deterioraon of the liquid. The inferior temperature limit is
condioned by freezing of the liquid.
The principal features of a liquid for constant-temperature baths are: the temperature field,
viscosity, specific heat, thermal conducvity, the thermal expansion, the dielectric resisvity, life
span, safety, etc.
3.1.1 Recommended temperature field
The recommended temperature field of the principal liquids which can be used with the
temperature calibrator are shown below. It depends principally on the equipment in which it is
used. Normally the temperature field of a liquid is greater than the one shown below, but out of
these values fome features of the liquid can jeopardise funconing inside the calibrator.
• Wasser-Glycol-Mixture (50%): recommended for operaon range -30...+60°C
Smokiness increases considerably above 70°C!
• Silikon oil type 47V5: recommended for operaon range -20...+125°C
Steam triggers combuson in the presence of a naked flame
above 136°C!
• Silikon oil type 47V10: recommended for operaon range -15...+140°C
Smokiness increases considerable above +130°C!
• Silikon oil type 47V20: recommended for operaon range +20...+140°C
Smokiness increases considerable above +130°C!
Straight water is not recommended because of the presence of limestone causes blockage of the
agitaon.

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
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MANUAL Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
14
3.1.2 Viscosity
Viscosity is the property of fluids that indicates it‘s resistance to mixing and it depends on the type
of fluid and temperature.
The more viscous the fluid, the more difficult the mixing of the fluid and consequently the
distribuon of a uniform temperature inside the bath.
Liquids with a viscosity higher than 20 censtokes (cts) do not allow a good performance of the
bath, therefore they should be avoided in the and . OilFLUID 100 FLUID 100-NLR- LR-Cal Cal
viscosity is established at room temperature.
The value for water (at 20°C) is 1 cst.
Viscosity at room temperature silicone oil 47V5 5 cst
silicone oil 47V10 10 cst
water-glycol-mix 50% 5 cst
Remember that viscosity, especially in oils, varies considerably when the temperature changes:
this is the reason that characterises the use of oil in a well-defined field: normally the oil becomes
more viscous when the temperature drops, creang problems in mixing and uniform distribuon
of the temperature.
3.1.3 Thermal expansion
Thermal expansion indicates how liquid volume changes with variaon of the temperature. It is an
important factor especially regarding oils, which increase in volume with increase of temperature.
Read the filling instrucons and do not fill over the values indicated because thermal expansion
could cause the liquid to escape from the bath.
Silicone oils increase by about 10% with respect to their inial volume with a temperature increase
of 100°C.
3.1.4 Life span
The life span that you can expect depends on many condions: evaporaon, chemical
deterioraon, gelling, etc.
The life span of an oil becomes shorter becauer the higher the temperature the greater oxidaon
of the oil in contact with air.
To increase the life span:
• Use the most suitable oil at high temperature for the shortest me possible
• Place the appropriate cover with holes on the bath to allow passage of the probes, in order to
limit contact between the hot oil and air.
For example: connous use at 125°C, in open bath condions, of 47V5 silicone oil cause
deterioraon in a few tens of hours; with the deterioraon of its condions the viscosity increases
considerably; at temperature below zero the 47V5 silicone oil becomes doughy and mixing in the
bath is impossible.
3.1.5 Bath filling
Fill the temperature calibrator with the suitable fluid depending on the field of calibraon. The
liquid we recommend is 47V5 silicone oil (resp. 47V10). Fill the bath with about 43-43 cl of oil. Do
not exceed the recommended quanty, as the thermal expansion at high temperatures could
cause the liquid to escape from the upper opening.

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
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MANUAL
Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
15
Using 47V5, bath performances are opmal in the field from -20° to 120°C, but with a fumes
sucon device it can be used up to 125°C, liming the running me to the highest values in order
to increase the life span, while at a low temperature the viscosity, even if high, allows good
funconing of the temperature calibrator, adjusng the magnec srrer to maximum speed.
If the liquid is oen used at high temperatures, we suggest to use the appropriate cover with holes
that allow passage of the probes and place it on the bath.
Before replacing the liquid in the calibrator with a different one, it is recommended to clean the
container with absorbent paper in order to prevent mixtures of different liquids that worsen the
operang condions and, most of all, cause the liquid to leak due to incompability of the
maximum temperature.
3.1.6 Srrer adjustment
The rotaonal speed of the magnec srrer can be adjusted using knob (6). The speed increases
with a clockwise movement. Adjustment is based on the vortex produced in the liquid: an ideal
vortext should be about 2 cm high. The rotaonal speed should be raised, at low temperatures,
when high viscosity silicone oil is used. At high temperatures reduce the rotaonal speed in order
to prevent having vortexes that are too high causing the liquid to escape.
Switch the temperature calibrator off, if the rotaon is blocked, adjust the speed controller (6) to
maximum and switch on the calibrator again. If it sll does not work, perform the maintenance
indicated in chapter 6.
3.1.7 Posioning of the probes
In order to get the best performances in the calibraon, observe the following recommendaons:
• Verify that the probe is inserted for about 140 mm, avoiding touchng the bo om.
• As for the calibraon by means of comparison with a reference sample, it is necessary to
posion the two probes, respecvely the sample one and the probe to be calibrated, at the
same lavel and as close as possible.
• To get the best accuracy and stability, put over the bath the protecons disc with holes to allow
the passage of the probes (see image below).
• The protecon disc reduces the formaon of moisture condensaon in the silicone oil at low
temperatures.
• Do not insert the probes in the center of the tank, as they
interfere with srring.
• Always verify the operang range of the probes and
thermostats before calibraon: only insert them into the
liquid if the calibraon range is compable with the
temperatures set on the temperature calibrator.
For example: inserng a probe with a range 0...50°C into
a liquid at a temperature higher than 120°C could
determine the breakage of the probe‘s sensive element.
• Avoid placing too many probes at the same me,
because the agitaon of the liquid is disturbed
resulng in large calibraon errors.

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
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MANUAL Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
16
3.1.8 Recommendaons
• Do not close the container when the temperature is very high. Wait for the temperature of the
liquid to reach room temperature and then turn off and close using appropriate cap and
cover.
• Avoid transporng the and temperature calibratorFLUID 100 FLUID 100-NLR- LR-Cal Cal
without having emptyed and closed it beforehand, following the previous instrucons.

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL
Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
17
4. Installaon and Operaon
4.1 Installaon
4.1.1 Removal of packaging
The temperature calibrator is equipped with suitable packaging for transport and tradional
shipping systems. Any damage caused during transport must be nofied immediately to the
transporters and claim must be made.
4.1.2 Posioning the temperature calibrator
Posion the temperature calibrator on a safe and clean place.
The temperature calibrator is suitable for operang at high temperatures with the
consequent danger of fire. Keep it away from any type of inflammable materials
and never put any type of liquid inside (except the liquid reservoir).
To avoid any smell in the room it is be er to switch on the temperature calibrator
outside the room or to use a fume hood to remove any vapours given off by hot
bath fluid.
4.1.3 Power supply
The temperature calibrator runs on a voltage of 230 VAC (115 VAC on request), single-phase,
50/60 Hz. A 2.5 meter long cable 3 x 1 mm² is supplied with the instrument.
Make sure that the plant is earthen correctly before switching on the temperature calibrator.

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
18
5. Operang the calibrator
5.1 Elements of the front panel
(1) Supply socket
(2) Main switch
(3) Protecon fuses
(4) Switch test plugs
(5) RS232 interface
(6) Mixer speed control
(7) Display
(7.1) LED „heang“
(7.2) LED „cooling“
(7.3) LED „switch test“
(15) Sockets for external probes (version only, with two measuring inputs)-2I

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL
Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
19
5.2 Descripon of the instrument
The and temperature calibrator consists of an aluminiumFLUID 100 FLUID 100-NLR- LR-Cal Cal
block with one hole into which the sensors to be calibrated are inserted. The capacity of the fluid
tank is 500 cm³.
The Peler defices and an electronic microcontroller checks and regulates the temperature. Liquid
srring is ensured by a magnec system. A grid, to prevent the inserted probes from stopping its
operaon protects the srrer. A speed adjustment system is supplied, to ensure the best
homogeneous condion, according to the type of used fluid.
A fan, mounted in the bo om side, generates a constant air flow that reduces the temperature of
the case.
5.2.1 Thermoregulator
The thermo regulator (7) is a PID microprocessor which can be set from -12 to +125°C (resp.
+140°C). The first display line shows the measured value while the second display line displays the
input Set Point value.
Fur further specificaons and methods of use, see chapter 9 concerning the thermoregulator.
5.2.2 Main switch
The main switch (2) is found on the front of the instrument. It is fi ed with a socket for the voltage
calble, a main switch and one fuse (2.5 A for model at 230 VAC).
Note: use only fuses F. 5 x 20 mm. All the electrical part is found below the main switch.
5.2.3 Carrying handle
The temperature calibrator is fi ed with a carrying handle.
5.2.4 Liquid container
The capacity of the container is about 500 cm³.
Follow the instrucons of chapter 3.1.5 to fill the container with the suitable calibraon liquid. The
magnec srrer inside the container makes the temperature of the liquid homogeneous in order
to have the best performance. A metallic grid protects the magnec srrer.
5.2.5 Internal reference probe
The temperature sensor used for the reading and thermoregulaon is a Pt 100 resistance
thermometer. The probe is inserted directly into the aluminium container.
5.3 Operaon
The temperature calibrator can only be used correctly if the user has a good
knowledge of its basics.
Before starng with the calibraon, follow the installaon procedures.

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. [phone] • Fax [phone] • [e-mail] • • www.druck-temperatur.dewww.LR-Cal.net
MANUAL Portable Temperature Calibraon Bath
FLUID 100 and FLUID 100-N
20
You have three opons to calibrate test items in the means of comparison of values:
Calibraon with comparison with internal
reference sensor
Make reference to the temperature value
of the display (7).
It is opportune to refer the value to the
supplied test report, to compensate the
error of the display.
Calibraon with comparison with external reference sensor, reading on calibrator‘s display
( versions only)-2I
Make reference to the temperature
value of the external standard
instrument inserted to the container
and connected directly to the
temperature calibrator. Temperature
is read on the 2. line of the display.
When possible, put the sensive
elements of the probes near
and at the same dept.
Calibraon with comparison
with external reference
sensor, reading on display
of an external instrument
Make reference to the
temperature value of the
external standard instrument
inserted in the container and
connected to an external
instrument.
When possible, put the
sensive elements of the
probes near and at the same dept.