PTB 150 Portable Temperature Calibrator

PTB 150
Portable Temperature Calibrator
Instruction Manual
Eurotron Instruments Benelux B.V.
Lage Traan 4f
9351 VL Leek, The Netherlands
Tel.
(+31) 594 696 131
Fax
(+31) 594 820 224
E-mail [email protected]
www.eurotronbenelux.nl
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PTB150-MAN-V13.2
PTB 150 Instruction Manual
INSTRUCTIONS MANUAL
PTB150
REV.
13.2
DATA
Oct. 2011
VALID FROM SERIAL NUMBER K322 11
INDEX
WARNING .......................................................................................................................................................... 3
1 - INTRODUCTION ........................................................................................................................................... 4
1.1 - Purpose and summary of instructions .................................................................................................... 4
2 - SCOPE OF SUPPLY ..................................................................................................................................... 5
3 - GENERAL RECOMMENDATIONS ............................................................................................................... 7
4 - SAFETY INSTRUCTIONS ............................................................................................................................ 8
5 - PREPARATION OF OPERATION ................................................................................................................ 9
5.1 - Installation ............................................................................................................................................... 9
5.1.1 - Removal of packaging ...................................................................................................................... 9
5.1.2 - Positioning the calibrator .................................................................................................................. 9
5.1.3 - Supply .............................................................................................................................................. 9
6 - OPERATION PROCEDURE ....................................................................................................................... 11
6.1 - Operation description ............................................................................................................................ 11
6.2 - Description of instrument ...................................................................................................................... 11
6.2.1 - Thermo regulator ............................................................................................................................ 11
6.2.2 - Signalling lamps ............................................................................................................................. 11
6.2.3 - Main switch..................................................................................................................................... 11
6.2.4 - Carrying handle .............................................................................................................................. 11
6.2.5 - Heating & cooling system............................................................................................................... 12
6.2.6 - Equalising block ............................................................................................................................. 12
6.2.7 - Temperature sensors ..................................................................................................................... 12
6.3 - Start-up instructions .............................................................................................................................. 13
6.4 - Use of the functions .............................................................................................................................. 15
6.4.1 - Reading of external probes (TC version only) ............................................................................... 15
7 - MAINTENANCE INSTRUCTIONS .............................................................................................................. 17
8 - MAINTENANCE SEQUENCE ..................................................................................................................... 17
9 - TYPICAL FAULTS ....................................................................................................................................... 18
10 - APPENDICES ........................................................................................................................................... 19
10.1 - Frontal panel description ................................................................................................................... 19
10.2 - Microprocessor regulator: control description ..................................................................................... 25
10.3 - Communication Protocol Rs232/C...................................................................................................... 27
10.4 - Standard equipment spare parts list ................................................................................................... 30
10.5 - Declaration of conformity and check report ........................................................................................ 30
10.6 - Drawing and wiring diagram ............................................................................................................... 30
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WARNING
Hazardous voltages are present in this electrical equipment during operation.
Non-observance of the safety instruction can result in severe personal injury or property
damage.
Only qualified personnel should work on or around this equipment after becoming
familiar with all warnings, safety notices, and maintenance procedures contained herein.
Only qualified personnel or our personnel should work on this equipment for
maintenance operation.
The successful and safe operation of this equipment is dependent on proper handing,
operation and maintenance.
Don not use the instrument for any application other than calibration of temperature, any
other use of the instrument may cause hazards to the user.
Use the instrument only in normal environmental conditions.
Electrical and electronic equipments with this symbol cannot be thrown away in public dump
sites. According to the EU directive 2002/96/EC, the European users of electrical and
electronic equipment have the opportunity to return to the distributor or manufacturer used
equipment purchasing a new equipment. The illegal disposal of electrical and electronic
equipments is punished by pecuniary administrative sanction.
SYMBOLS BEING USED IN THIS MANUAL OR ON THE INSTRUMENT
CAUTION: HOT SURFACE OR PART
CAUTION: REFER TO ACCOMPANING DOCUMENTS
CAUTION: RISK OF ELECTRICAL SHOCK
Note:
In this manual: where not specified, the numbers in parentheses make reference to the annexed
drawing.
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1 - INTRODUCTION
1.1 - Purpose and summary of instructions
This manual contains the use and maintenance instructions valid for the following equipment:
Portable Temperature Calibration model: PTB150
The instructions reported in this manual, for the above mentioned equipment, are those relevant to:
•
•
•
•
•
•
Start-up preparation
Operation description
Using of the equipment
Re-calibration procedure
Preventive maintenance
Typical faults and their remedies
Users must observe all the usual safety rules out in this manual for own security and to avoid
equipment failure.
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2 - SCOPE OF SUPPLY
1 - Name:
• Portable Temperature Calibrator PTB150, including accessories, as listed. (reference to paragraph 2.7)
2- Technical data:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Operative range
Stability
Resolution
Reading accuracy
Regulation & reading probe
Auxiliary inputs
Reading
Serial communication
Increase gradient
Heating time
Decrease gradient
Cooling time
Cooling time
Standard block
Temperature ramps
Thermostat test
Voltage
Power
Electric protection
Calibrator measurements
Measurements of case
Weight
•
•
•
•
•
•
•
•
•
•
•
•
Structure in flanged plate with rotating handle.
Thermostatic well in aluminium with a hole ø35mm.
Reducer inserts: ø34,7x135mm.
Regulation of the temperature with PID µcontroller.
Switch test.
Internal cryostat with Peltier elements.
Electronic control components thermally insulated with forced air system.
Removable upper protection grid.
Total absence of environmentally harmful cooling liquids.
Socket with main cable and protection fuses.
Display back light control.
Electromagnetic compatibility :
Emission EN50081-1
Immunity EN50082-2
NOTE:
: -27÷ +150°C @ 22°C
: ±0.02°C ** (@ –15 and 150°C)
: 0,01/0,1°C
: ±0,15°C **
: Pt 100 class A din43760
: Pt100 and Tc J, K, N, R, S, E(TC version only)
: °C, °F, K
: RS 232
: 20°C/1’ **
: 15’ from 20 to 140°C (+ 6’ for stability )
: 22°C/1’ **
: 12’ From 140 to 20°C (+ 6’ for stability )
: 15’ From 20 to -25°C (+ 6’ for stability)
: Ø35 x 135mm
: min. 0,1°C/1’
: 12 Vcc.
: 230V 50Hz (100/115V by required) 50/60Hz.
: 300VA.
: 2,5A T. fuse (3A F for 100-115V)
: 160x370 x h. 330 mm
: 520x330 x h. 500 mm
: 10 Kg only calibrator; 17Kg with travelling-case.
The data marked with ** has been recorded at an ambient temperature of 20°C±3, power
supply 230V±10%, with Pt100 ø6 inserted in the block.
The above-mentioned data keep valid for one year after the issuing of the calibrating
certificate; afterwards it is necessary to carry out the oven re-calibration.
Environmental range: temperature +5 a +45°C, U.R. max. 80%
µCONTROLLER DATA
* Display
: 2 lines 20ch x line (3,2x5,5) back lighting.
* µprocessor
: 80C552 (family 80C51 CMOS).
* A/D converter Σ-Δ 24 bits
* E2PROM memory.
* Serial communication RS232 insulated.
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3 - Services (function):
The portable temperature calibrator PTB150 has been designed for:
• Control and calibration of temperature sensors, in the laboratory and in the field, in conformity with ISO
9000 standards.
• Calibration of thermostats with light indication when electric contact close.
• Thermal test on materials.
• Possibility to set temperature ramps.
The calibrator has been designed to reduce the EMC effect in accordance with the harmonised regulation for
residential, commercial, light industry and heavy industry.
TM
N.B: The Pulsar with the software AQ2sp for Windows can carry out:
◊ complete control of the oven from the PC
◊ manual or automatic calibration of one or more probes
◊ cyclic life or stress test on temperature sensors
◊ automatic threshold thermostat test
◊ filling and printing of the results obtained, guaranteeing that the ISO 9000 standard are observed
4 - Quantity:
• 1 piece.
5 - Manufacturer:
Eurotron Instruments (UK) Ltd
Unit 13 Riley Close, Royal Oak Industrial Estate
NN11 8QT- Daventry, United Kingdom
T+ 0044 (0) 1327 871044 F: 0044 (0)1327 301 255
www.eurotron-uk.com
[email protected]
6 - N° of correspondent catalogue sheet:
• PTB-D-V02 ( 15112011)
7 - List of first equipment accessories
PTB150-TS-230-UK
PTB150-TS-115-US
PTB150-TS-230-EU
PTB150-TC-230-UK
PTB150-TC-115-US
PTB150-TC-230-EU
PTB150-INS-01
PTB150-INS-02
PTB150-INS-03
PTB150-INS-04
PTB150-INS-05
PTB150-INS-06
PTB150-INS-IR
PTB150-TC-OPT-01
PTB-CASE-02
PTB-CASE-01
Temperature Calibrator, -48/150 ⁰C TS version 230 VAC
Temperature Calibrator, -48/150 ⁰C TS version 115 VAC
Temperature Calibrator, -48/150 ⁰C TS version 230 VAC
Temperature Calibrator, -48/150 ⁰C TC version 230 VAC
Temperature Calibrator, -48/150 ⁰C TC version 115 VAC
Temperature Calibrator, -48/150 ⁰C TC version 230 VAC
blank insert DN.35x135 mm
Insert 35x135 mm 6 holes: φ.3,5-4.5-5.5-6,5-8,5-10,5 mm.
Insert DN35x135 mm custom ( 1 to 3 holes from 3,5 to 20mm)
Insert DN 35x135 mm custom ( 4 to 6 holes from 3,5 to 20mm)
Insert DN.35x135 mm custom ( 7-10 holes from 3,5 to 20mm)
Multi-hole insert DN35x135 mm with 2 holes: φ 6.5- 19.5 mm.
Black body Insert DN 35x135 c/w Reference Sensor
SRS-PRT-03-A168B reference sensor and special UKAS Cal
Aluminium Transport Case with space for accessories(PTB/PLB)
Vinyl Case with Pockets for accessories (PTB/PLB)
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3 - GENERAL RECOMMENDATIONS
 ATTENTION
The µprocessor regulator has been configured in factory with the parameters suited
to work in the respect of the technical specifications.
Don’t change these parameters to avoid malfunction or breaking of the calibrator
with risks of serious personal injury.
- Position of the probe:
To obtain the best result, follow the advises:
• Measure the diameter of the probe being checked.
• Use the reduction insert; check that the diameter of the hole is at least 0.3mm bigger than the
diameter of the probe (figure1).
• Put the insert in the equaliser block only at ambient temperature, using the tweezers.
• Avoid using holes that are too accurate and do not force the probes into the block.
• Insert the probe up to the bottom of the block: the sensitive element is in the optimal calibration zone
(figure 2)
• Calibration with a reference: take care to position the two probes, the standard one and the
calibration one, at the same dept and as close together as possible (figure 3).
• Always verify the range of the probes to be calibrated before using; the maximum temperature
of the probes should be higher then the temperature of the liquid otherwise the probe could
Fig.1
Fig.2
Fig.3
break.
- Advises:
• The temperature difference is proportional to the difference between the diameter of the probe
and the diameter of the hole.
• Do not insert the probe when the instrument has already reached the set temperature; thermal
shock causes instability and breakage of the sensitive element.
• For the calibration of temperature transducers with special execution, call our technical office
and ask for equaliser blocks with special drillings.
• Inserting a 6mm diameter 20°C probe at 121°C takes about 10 minutes to achieve maximum
stability.
• To reduce the errors it is advisable to insert the probes and the standard probe together in the
insert, if you insert the standard probe in the side hole and the probes in the insert the error at
121°C is about 0,2°C
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4 - SAFETY INSTRUCTIONS
ATTENTION:
• Due to the fact that the thermostat is a portable instrument to be used in the field, it is very
important to ensure that the socket has been earthed correctly when connecting it to the
electricity supply.
• Carry out the maintenance and repair operation only with the equipment at ambient
temperature and disconnected from the electric power.
• During the use of the calibrator, the upper protection grid may overheat.
• Don’t touch the probe to calibrate when it’s in the block.
• After using wait for the stabilisation at ambient temperature before returning the calibrator to
its carrying case.
• Never put any type of liquid inside the well.
• Don’t change absolutely the configuration parameters.
• Don’t put anything on the top of the calibrator.
• Do not operate the instrument in an excessively wet, oily, dusty, or dirty environment.
• Do not connect any voltage higher to 5V to the input 4-5-15
• Don’t put fuel objects near the calibrator.
...... use common sense any time.
The equipment adopt the following devices to protect operation from hazard:
• Protection grid and cap-block to avoid any contact with the internal block.
• Protection fuses (3)
• Ground conductor.
AFTER EVERY USE AT SUB-ZERO TEMPERATURES REMEMBER TO SET UP 70°-80°C FOR
ONE HOUR IN ORDER TO EVAPORATE THE WATER IN THE WELL THEN SET AMBIENT
TEMPERATURE AND LEAVE FOR SAME MINUTES BEFORE SWITCHING OFF
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5 - PREPARATION OF OPERATION
• Remove the calibrator from the carrying case and place it on a flat surface.
• Make sure that the instrument has been correctly earthen.
• Supply the oven with line 230V, 50/60Hz (115 o 100V where required) + earth, 3A
• Before start the calibration read with attention the instruction manual, specially the
paragraph 3: - General recommendation -.
5.1 - Installation
5.1.1 - Removal of packaging
The calibrator is equipped with packaging suitable for transport and traditional shipping systems.
Any damage caused during transport must be notified immediately to the transporters and a claim
must be made.
5.1.2 - Positioning the calibrator
Position the calibrator in a safe clean place; make sure that the fan on the bottom of the calibrator
runs free.
**DANGER:
The calibrator is suitable for operating 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 the block (reference to paragraph 4).
* WARNING:
To avoid any smell in the room it is better to switch on the calibrator outside the
room for the first time
5.1.3 - Supply
The calibrator runs on a voltage of 230 Vac (115-100V by request), single-phase, 50/60Hz. A
2.5mt. cable is supplied with the calibrator fitted with 2 conductors plus earth (2.5mm2). Make sure
that the plant is earthen correctly before switching the instrument on.
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5
4
15
7.1
7.2
1
7.3
3
7
2
COMMANDS LIST
POS.
DESCRIZIONE
1
2
3
4
5
7
7.1
7.2
7.3
15
SUPPLY SOCKET
MAIN SWITCH
PROTECTION FUSES
SWITCH TEST BUSHES
RS-232 SOCKET
THERMOREGULATOR +DISPLAY
HEATING LED
COOLING LED
SWITCH TEST LED
EXTERNAL PROBES SOCKETS (OPTIONAL)
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6 - OPERATION PROCEDURE
6.1 - Operation description
The PTB calibrator consists of an anticorodal block fitted with ø35mm, into which the sensors to
be calibrated are inserted.
Four Peltier elements provided to heating / cooling the block; a PID µcontroller provided to regulate
the temperature. The regulator control an AC/DC converter the supply the Peltier elements.
A fan mounted in the rear side generates a constant airflow that reduces the temperature of the
case; the fun mounted in the bottom side generates a constant airflow that reduces the
temperature of the block during the cooling.
6.2 - Description of instrument
6.2.1 - Thermo regulator
The thermo-regulator (7) is a PID microprocessor, which can be set from -50 to 150°C.
• DISPLAY UPPER LINE: indication of the temperature measured inside the block.
• DISPLAY LOWER LINE: indication of the set point; external probes if selected, setting
parameters.
•  KEY: used to increment (decrement) any numerical parameter. The increment (decrement)
speed is proportional to the time the key remains depressed.
• F KEY: allow access to the various parameters (repeatedly press), access to the various phases
of configuration (press F +).
• E KEY: allow confirming the set parameter.
The calibrator is endowed with eight terminals (optional) that can be set as Pt100 or Tc.
6.2.2 - Signalling lamps
Heating lamp (7.1): it indicates the operation of the Peltier heating system.
Cooling lamp (7.2): it indicates the operation of the Peltier cooling system.
Sw. Test lamp (7.3): it indicates the activation of the contact of the thermostat under test connected
at the plugs (4)
6.2.3 - Main switch
The main switch (2) is frontal of the instrument; it is fitted with a socket for the voltage cable and
two fuses: 2,5A S for 230V mod. & 3A T for 100-115V models.
Note: use only fuses F. 5x20mm. All the electrical part is found below the main switch.
6.2.4 - Carrying handle
The calibrator is fitted with a carrying handle
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6.2.5 - Heating & cooling system
Four Peltier elements provided to heating / cooling the block; this system can reach the max.
temperature of 150°C & the min. temperature of -30°C.
Bear in mind, however, that constant use at extreme temperatures reduces the life of the Peltier
elements. Limit the number of hours at which the instrument is used at maximum temperatures to
the time required by the calibration in order to prolong the life of the cells.
6.2.6 - Equalising block
The equalising block is in aluminium with the hole for the reduction insert. Holes have been made
on the reduction insert to make it possible to fit various types of probes. The function of the block
is to make uniform the temperature on calibration zone.
If you want to fit the calibrator with a block or insert with different holes we recommend that you
should contact the technical support department who will check to see if it is feasible. This will
avoid any unfortunate problems, which might arise if the wrong tolerances are used
6.2.7 - Temperature sensors
The temperature sensor used for the reading and thermoregulation is a PT100Ω probe; the probe
is inserted directly into the equalising block.
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6.3 - Start-up instructions
ATTENTION:
• The calibrator can only be used correctly if the user has a good knowledge of its basics.
• Before starting with the calibration following the installation procedures (paragraph 5); read the
instruction on paragraph 3 & 4.
To calibrate the probe it is possible to follow two ways: calibration with internal indicator (8), or
calibration with external reference.
Calibration with the internal indicator (8):
Make reference to the temperature value of the
display (8) (figure 4).
It is opportune to refer the value to the test report to
compensate the error of the display.
Fig.4
Calibration with external reference and reading on
the calibrator display:
The reference temperature value is given by the
external reference introduced in the block and directly
connected to Quartz (figure 5); the temperature can
be read on the second line of the display (for the
configuration of the sensor, see the paragraph 10.1).
When possible, it is advisable to place two probes at
the same level and as closest as possible (reference
figure 1-3).
Calibration with external reference and reading on
an external instrument:
The reference temperature value is given by the
external reference introduced in the tank and
connected to an external instrument. When possible, it
is advisable to place two probes at the same level and
as closest as possible (reference figure 1-3).
Note: Figures 4 and 5 refer to the calibrator in version
2I with external sensors plugs.
Fig.5
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Before any calibrations follow the general recommendation (chapter 3):
• Starting the calibration only at ambient temperature: thermal shock can break the sensitive
element of the probe and cause harm to operator.
• Put the probe to check into the equaliser block: reference to chapter 3. (fig 1-2).
• Switch on the calibrator with the main switch (2); waiting for the end of auto test procedure.
• Set the required temperature value on the display:
◊ Press the
◊ Press the
 key to increment the set point value.
 key to decrement the set point value.
◊ Press the - E - key to confirm the input value.
•
•
•
•
•
•
Wait for the stabilisation of the oven before starting any calibration.
The time to reach the stability(±0,02°C) from 20 to 100°C is about 20 minutes and from 100 to
0°C it is about 30 minutes.
The display shows the temperature of the calibrator and the set point, when the temperature is
reached and it is stable, the display shows the symbol ÷
To working at different temperatures set the set point at the new value and wait for the
stabilisation.
When the set point is changed, the temperature read on the display and that measured in the
block may not proceed at the same speed; this is because there are differences between the
sensors used and the position of the same inside the block.
We suggest to insert one primary standard with SIT certificate in the ø6.5 hole of the block;
compare the measure with the values indicated by the standard.
If you don't always want to make use of the primary standard: it's possible to calibrate the
instrument to more significant points, comparing the displayed temperature with that
temperature of standard.
In case the Quartz is connected with an external probe SIT certificated (ref. 6.5.1), the system is
considered a primary standard.
• The minimum temperature depends to the ambient
temperature: to do references to the graphic on fig. 6
Fig.6
N.B:
To modify the regulation parameter or to set the ramp,
see the instructions on chapter 10.1.
ATTENTION
• At the end of the calibration DO NOT remove the probe if it is still at high temperature.
Always allow the calibrator to cool off with the probe still inserted in order to avoid thermal
shock to the probe itself and harm to people or things.
• Before returning the calibrator to its case makes sure that the temperature of the block is
almost the same as ambient temperature.
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6.4 - Use of the functions
6.4.1 - Reading of external probes (TC version only)
It is possible to display one or two probes tied to the EXT and REF
inputs.
The following probes can be connected:
1. THERMOCOUPLES TYPE J, K, R, S, N, E with automatic
compensation of the terminal clamp temperature.
2. THERMAL RESISTANCE Pt 100 to 2, 3 or 4 wires.
•
Connect the probe’s wires to the clamps (15) as it is indicated in
the figures.
◊ Thermocouple – connect the wires to the clamps 2-4 to make
attention to the polarity; connect the clamps 1-3 as indicated.
Reference to figure 7-A and select the thermocouple.
◊ Pt100 to 4 wires – connect the clamps 1-2-3-4 as indicated in
figure 7-B and select Pt100.
◊ Pt100 to 3 wires – connect the wires to clamps 1-2-3; connect
the clamps 3-4 and select Pt100 3W. Reference to figure 7-C
◊ Pt100 to 2 wires – connect the wires to clamps 2-4; connect
the clamps 1-2 & 3-4; select Pt100. In case of two wires
connections remembers to us shortest wires possible. Refer to
figure 7-D
•
In order to read the probes’ temperature refers to the procedure
explained in paragraph 10.1 till SENSOR; the temperature will be
displayed on at the bottom of the display.
• In order to read in the '°F' way, refer to the procedure explained
in paragraph 10.1 till Units°C/°F/K; the conversion of the new
scale will be carried out at once.
NOTE: The calibrator always thermally adjusts with the control probe
situated inside the block.
Fig. 7
6.4.2 - Switch test
You can test the operating point of the thermostats by the 'SWITCH TEST' function.
• Put the thermostat in the most suitable hole of the block (see the note in paragraph 3).
• Connect the terminals of the thermostat to the socket (4).
• Switch on the calibrator.
• Set the test temperature upper to the operating temperature of the thermostat: the lamp (7.3)
will come on when the thermostat electric contact works.
• The instrument stores the switch test value. Follow the instruction and the flow chart on chapter
10.1, up to SW ON - SW OFF to display the stored values.
• Push on together the  &  keys to reset the value of 'SW. ON - SW. OFF'.
• See chapter 10.1 for ramp generation.
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6.4.3 - Serial communication
For PC control use the serial communication RS 232 (5) (references fig.8)
With RS232 you can read and/or change the operative parameters, for
example: set point, external probe, slope rate etc..
Reference to communication protocol instruction (chapter 10.2).
The external PC must be conform to the IEC950 standard
Fig.8
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7 - MAINTENANCE INSTRUCTIONS
To have instrument always efficient is opportune to re-calibrate it periodically.
Frequency of re-calibration is depending to the use of instrument; however we suggest to recalibrate instrument every year.
To re-calibrate the instrument is necessary to have a standard temperature instrument, the
software ‘CALIBRA’ and follow the instructions of the software or alternately follow the instructions
of item 10.1.
Use at subzero temperatures generates the formation of ice and mist.
In order to keep inserts always clean, at the end of every use at subzero temperatures please
remember to set the furnace temperature at 70-80 °C for 1 hour so as to let water evaporate, then
set the room temperature and let the calibrator cool down, before stopping it.
Water remaining in inserts generates aluminium oxidation resulting in the hole; in order to avoid
this problem, please remember to let water evaporate and to remove inserts from the calibrator at
the end of use.
Check the power supply cable and replace it if damaged.
Remove dust from the calibrator and avoid the fan sucking dirt from the bottom of the machine; if
necessary, clean the heat sink, by blowing air from above the grating by means of an airgun.
8 - MAINTENANCE SEQUENCE
Not applicable
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9 - TYPICAL FAULTS
Before carrying out these operations the instrument must be disconnect from the electricity supply.
N°
FAULT DESCRIPTION
1
The calibrator does not work when
the power cable is connected and
the main switch is turned on.
2
The fuses (3) are triggered when the
power cable is connected and the
main switch is turned on.
- The fuse (2) is cut off.
- The power cable is cut off.
- The main switch is faulty.
- There is a short circuit in the
supply card (12).
- The main switch is faulty.
METHOD FOR REMOVAL
- Replace the fuses.
- Replace the power cable with a
similar one.
- Replace the cup socket (1-3)
- Replace the supply card.
- Replace the cup socket.
- The supply card (12) is faulty.
- The regulation card (7) is faulty.
- Replace the supply card.
- Replace the regulation card
- One or more Peltier elements are
faulty.
- Replace the equaliser block.
The display show a different
temperature from the one measured
in the block.
- The Pt100 (8) is faulty.
- Recalibration of
otherwise replace it.
The temperature does not stop at
the value of the point, which has
been set.
The calibrator doesn’t work at the
temperatures indicated in the
technical data.
- The thermoregulator (7) is faulty.
7
The display shows “MEMORY FAIL”
The memory lost the data for
electrical troubles
Replace the thermoregulation card
and/or re-calibrate the Quartz
8
The display shows “Internal sensor
fail”
Short circuit on the PT100 RTD (8).
- Replace the PT100 RTD and recalibrate the Quartz
9
When switch on the calibrator, the
fan (5) doesn’t work
- Replace the supply card.
- Replace the thermoregulator.
10
The calibrator doesn’t stabilise at the
high temperatures.
- The supply card (12) is faulty.
- The thermoregulation card (10.1) is
damaged.
- The fan (19) is damaged.
- The P.B. value is narrow
3
4
5
6
The control panel is working
properly but the temperature does
not increase or decrease.
FAULTY COMPONENT OR
FUNCTION
the
- The thermoregulator (7) is faulty.
One or more Peltier elements are
damaged.
- Replace the thermoregulator.
- Replace the regulation card.
- Replace the thermoregulator.
Replace the equaliser block.
- Replace the fan (5).
- Set the P.B. to 6%
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PTB150-MAN-V13.2
probe;
PTB 150 Instruction Manual
10 - APPENDICES
10.1 - Frontal panel description
EXTERNAL PROBE INPUT
Selectable between Pt100, Pt100
3W, Tc K, Tc S, Tc N, Tc J, Tc R,
Tc E type according to the probe
you calibrate
REFERENCE PROBE INPUT
Selectable between
Pt100, Pt100
3W, Tc K, Tc S, Tc N, Tc J, Tc R, Tc
E type according to the probe you
calibrate
SWITCH TEST LED
When the led is on the
thermostat’s contact is
closed
HEATING LED
When the led is on the
calibrator increase the
temperature
DISPLAY 1
It shows the value of the
temperature in the block
COOLING LED
When the led is on the
calibrator decrease the
temperature
DISPLAY 2
Indication of the value of
the set point.
Indication of the external
probe if selected.
During
the
program
operation it shows the
parameter selected by the
‘F’ key.
Access to the function
menu.
Pressed with the key 
it let you enter to the ‘Set
Up’ menu
It increase the value showed
on the display 2. If you keep
pressed the key “UP” the
speed of increase rises
It reduce the value showed on
the display 2. If you keep
pressed the key “DOWN” the
speed of reduce rises
Confirmation of the values
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PTB150-MAN-V13.2
PTB 150 Instruction Manual
DESCRIPTION OF REGULATOR’S MENU
The calibrator has three menu levels( see image 10.2):
at the first level there are the functions for the continuous usage,
at the second level there are more specific functions for the regulation of the calibrator,
at the third level there are the typical functions for each calibrator and the calibration procedures.
st
1 MENU LEVEL
PRESS THE F KEY TO STEP THROUGH THE MENU
-
SP
SET POINT: temperature set which the oven has to reach following technical specifications, press the 
or  key to adjust the set point and press E key to accept new the new value.
-
SP2
SET POINT2: temperature set which the oven reaches with the set gradient and the ongoing launched
ramp procedure, press the  or  key to adjust the set point and press E key to accept new the new
value.
-
GRAD
GRADIENT: set point variation speed during the change from one temperature value to the SP2 value,
press the  or  key to adjust the set point and press E key to accept new the new value.
The set gradient must be negative for descent ramps.
NOTE: gradient values to be set must be lower than the ones stated in the technical data, at point 2.2
(cooling grad. max.: -7°C/min.; heating grad. max. 18°C/min).
-
RAMP
Ramp procedure enabling/disabling.
Select ON or OFF by the  or  key and press E key to accept; the oven will reach the set SP2
temperature with the set gradient, starting from the same temperature as the one with which the ramp
has been confirmed. The starting temperature does not depend on the Set Point temperature.
If a negative ramp is set put the gradient is left positive and/or the SP2 is higher than the current
temperature, the little over will not accept the ramp start and an alarm will begin running.
When the ramp is on, the display will show the word "Ramp:......." followed by the Set Point value on the
second line of the text. The Set Point value will reach the speed related to the set gradient.
When the block temperature reaches the SP2 set temperature, the oven will produce an alarm and the
ramp procedure will be automatically set off; the SP2 value will be considered as the new set point value
and the oven will be steadily set at that temperature.
During the ramp process, the derivative parameter will not be considered.
RAMP PROCEDURE EFFECTIVE EXAMPLE
Let’s say that the set temperature is the ambient one and that it is necessary to reach 400°C with a
gradient of 2°C/min.
- Press the F key and set SP2 to 400°C using the  or  keys. Press the E key to accept.
- Press the F key and set GRAD to 1°C/min using the  or  keys. Press the E key to accept.
- Press the F key and set RAMP to ON using the  or  keys. Press the E key to accept.
After pressing the E key to confirm the ramp start, the oven temperature will ascend with the set slope.
Of course, there will be some oscillations at the beginning since the ramp slope will not be suitable but
they will stop in a short time and then the oven temperature will follow the ramp’s set point.
-
RIS. 0.1/0.01
Display reading resolution; Press the  or  key to select 0,1 or 0,01 and press E key to accept.
-
SW. ON
Switch on; displays the temperature at which the thermostat connected to the terminals "SWITCH TEST"
is closed.
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PTB 150 Instruction Manual
-
SW. OFF
Switch off; it displays the temperature at which the thermostat connected to the terminals "SWITCH
TEST" is open. The value is reset each time the power supply fails or by pressing the two ”” keys at
the same time. The value is updated every time that the contact closing is detected.
-
SENSOR (OFF/EXT/REF/EXT+REF)
This parameter allows enabling the reading of sensors on the auxiliary inputs:
OFF no input is enable to read the sensors’ value.
EXT the four terminals of the input EXT are enabled to read the sensor tied to them, whose value is
indicated at the bottom of the Display.
REF the four terminals of the input REF are enabled to read the sensor tied to them, whose value is
indicated at the bottom of the Display.
EXT+REF the eight terminals of inputs 1 and 2 are enabled to read the sensors tied to them, whose value
is indicated at the bottom of the Display.
nd
2 MENU LEVEL
PRESS THE F +  KEYS AT THE SAME TIME TO ACCES THE SECONDARY MENU.
PRESS THE F KEY TO STEP THROUGH THE MENU.
PRESS THE “F +  KEYS AT THE SAME TIME OR WAIT FOR ABOUT 20 SECONDS TO COME BACK
THE PRIMARY MENU
-
P.B.
Value of the Proportional Band expressed in percentage of the value of the end of the scale. Proportional
band means the length of time in the measure field within which there is the variation of the regulation
probe exit alarm and therefore the adjustment of the heating element power.
-
T.I.
Integral Time value expressed in seconds. The integrating action cancel the error between the chosen set
point and the temperature reached only by the proportional action. Integral time means the length of time
necessary to the integrative action to double up the proportional action
-
T.D.
Derivative Time expressed in seconds. When there is a step variation of temperatures, the derivative
action induces an greater initial adjustment, so that the oven will have a greater power than it usual has
due to the proportional and integral action only. Since the error keeps existing, the derivative action
reduces the impact giving the integrative action the task of reducing the error.
-
EXT SENSOR TYPE: J, R, S, N, K, E, Pt100, Pt100 3wires
This parameter allows selecting the kind of sensor read by the display and connected to the four Ext.
terminals.(item 6.4.1)
-
Units °C/°F/K
This parameter allows selecting the temperature measuring unit. By selecting "°C" all temperatures will be
expressed in Celsius degrees; by selecting "°F" all temperatures will be expressed in Fahrenheit degrees.
-
Def. Par. ON/OFF
Default Parameter; this function allows choosing to set the thermoregulator with the P.B., T.I., T.D.
parameters either as a default or as a customisable adjustment. By selecting the "OFF" parameter and
confirming by the "E" key it is possible to modify the adjustment parameters, which will keep operational
even if the calibrator is turned off. By selecting the "ON" key (followed by the confirmation by pressing the
"E" key) the adjustment values will be set on the default ones recorded by the manufacturer, and
therefore not allowing to be changed. By turning the calibrator off the parameter will set on OFF but the
default parameters will be kept recorded.
-
REF SENSOR TYPE: J, R, S, N, K, E, Pt100, Pt100 3wires
This parameter allows selecting the kind of sensor read on the display and connected to the four REF.
Sensor terminals.(item 6.4.1)
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PTB 150 Instruction Manual
-
KEY
This is the key to step the third menu level. Press  or  key to set the number recorded in the "
ACCESS KEY parameters at the third menu level, and press "F" + keys at the same time (it is not
necessary to confirm the choice by pressing the E key) to step to the third menu level. The acceptable
values are from 1 to 99: the default set value is 2. If you lost the access key remember that it is
possible to have the number by reading the register 13 (item 10.3)
rd
3 MENU LEVEL
MENU THAT CAN BE SELECTED BY PRESSING THE "F + " KEYS AT THE SAME TIME WHEN THE
KEY PARAMETER IS REACHED AT THE SECOND LEVEL AND WHEN THE SET VALUE
CORRESPONDS TO THE RECORDED ONE.
PRESS THE F KEY TO STEP THROUGH THE MENU.
PRESS THE “F +  KEYS AT THE SAME TIME OR WAIT FOR ABOUT 20 SECONDS TO COME BACK
THE PRIMARY MENU
- ACCESS KEY
Access key; numerical value from 1 to 99 that enables passing to the third parameter level. The default
value is 2
-
BAUD RATE
Data transmission speed from the computer. Values are from 2400 to 19200 (default value is 9600).
-
ADDRESS
Communication address. The value of this parameter is necessary to communicate from the computer to
many instruments. The admitted values are from 1 to 32 and once the value is set by using the  or 
keys it is necessary to confirm the choice by the E key
-
S/N
Equipment serial number. It is set by the manufacturer and cannot be changed by the user.
-
Board S/N
Serial number of the board. It is set by the manufacturer and cannot be changed by the user.
-
MAX. SET.
Maximum value of the Set Point. It is set by the manufacturer and cannot be changed by the user.
-
MIN. SET.
Minimum value of the Set Point. It is set by the manufacturer and cannot be changed by the user.
-
WAIT
initial waiting procedure. If the value "0" is set, when it is started up, the calibrator immediately run to the
last set point value chosen after turning off. If the value "1" is set, when it is started up, the calibrator goes
on the waiting position and the SP flash. It is necessary to press any key in order to move it from the
waiting position and to choose the desired Set Point value. It is possible to set the WAIT value only by the
serial communication.
-
REV. SOFTWARE
Internal software’s release number.
-
SENSOR TYPE
It indicates the type of the internal probe.
-
STAB:
It indicates the swinging value of the temperature, which has been set to see on the Display the symbol of
the oven ÷ steadiness. The symbol light on when the temperature is stable for over 6 minutes.
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PTB 150 Instruction Manual
-
Cal_chnl:
Chooses the channel to be calibrated. It can assume three values: INT, EXT, REF. Press the  or  key
to select INT, EXT or REF and press E key to accept
-
P1:
First Calibration point. Press the  or  key to set the value read with the standard thermometer and
press E key to accept
-
P2:
Second Calibration point. Press the  or  key to set the value read with the standard thermometer
and press E key to accept.
-
CAL: INT (Y/N):
This writing can have three different configurations.
CAL: INT (Y/N) if Cal_chnl is set on INT
CAL: EXT (Y/N) if Cal_chnl is set on EXT
CAL: REF (Y/N) if Cal_chnl is set on REF
Press the  or  key to set Yes or Not and press E key to accept.
EXAMPLE OF RE-CALIBRATION
The appliance can have a complete or partial re-calibration yearly or when chosen by the user.
Calibration can be carried out using CALIBRA ED200 software or directly on the keyboard of the appliance.
The calibration of the INTERNAL probe is done by adjusting the internal probe at two points of the range
using a standard thermometer.
The calibration of the EXTERNAL and the REFERENCE inputs is done by adjusting the inputs of the
controller at two points of the range using a mV/ohm standard generator.
The calibration is possible only by setting the temperature in °C.
CALIBRATION OF THE INTERNAL PROBE
The purpose of re-calibration is to correct the error between the temperature indicated and the value of a
standard thermometer.
To calibrate the internal probe it is necessary to have a standard thermometer with precision greater than
that of the appliance and then to follow the instructions:
1. Insert the standard thermometer probe in the temperature bath or in the most suitable hole of the
calibrator.
2. Choose two calibration points depending on the appliance range or the field where one wishes to
carry out calibration. For example the points 0 and 120°C are recommended for the QUARTZ.
3. Set the first calibration point and wait for the appliance to be stable (see symbol ÷)
4. Enter the third menu level (see instructions) and select Cal_chnl= INT. Press E to confirm.
5. Press F to select P1, press the  or  key to set the value read with the standard thermometer
and press E Key to accept. Confirmation is indicated by the symbol * which appears on the display
after about 5 seconds.
6. Return to the first menu level and set the second set point. Then wait for the appliance to be stable
(see symbol ÷).
7. Enter the third menu level (see instructions) and select P2, press the  or  key to set the value
read with the standard thermometer and press E Key to accept. Confirmation is indicated by the
symbol * which appears on the display after about 5 seconds.
8. Select CAL: INT set Yes and confirm by pressing E key . Calibration begins. The procedure takes a
few seconds, at the end of which there is a Beep.
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PTB 150 Instruction Manual
CALIBRATION OF THE EXT + REF INPUTS with a signal calibrator
The purpose of the re-calibration is to correct the EXT and REF inputs error together.
To calibrate the two inputs, it is necessary to have a Pt100 calibrator and/or a thermocouples calibrator
depending on what is to be calibrated.
Calibration of the EXT input automatically reproduces the same calibration on the REF input:
1. On the second menu level, select the type of EXT input to calibrate (Pt100, Tc K, Tc J, Tc N, TcR, Tc
S, Tc E) following the instructions in the manual. Press E key to confirm.
2. Enter the third menu level (see instructions) and press the  or  key to set Cal_chnl= EXT. Press
E to accept.
3. Choose two calibration points depending on the appliance range or the field where one wishes to
carry out calibration. (For example 0 and 450°C for PT100, 200 and 800°C for the thermocouples).
4. Connect the signal generator to the EXT input, generating the first calibration value. See the
instructions for the connection.
5. Select P1 and press the  or  key to set the first value (for example 0°C). Press E Key to confirm.
Confirmation is indicated by the symbol * which appears on the display after about 5 seconds.
6. Generate the second calibration value with the signal generator. See the instructions for the
connections.
7. Select P2 and press the  or  key to set the second value (for example 450°C). Press E Key to
confirm. Confirmation is indicated by the symbol * which appears on the display after about 5
seconds.
8. Select CAL: EXT Set Yes and confirm pressing E Key. The procedure takes a few seconds. At the
end there is a Beep.
CALIBRATION OF THE REF INPUT with a with probe connected
This operation adapts the value indicated by the REF input to the value indicated by the probe connected to
it, compensating its errors.
To carry out the calibration it is necessary to connect the probe to the REF terminals and to have a standard
thermometer
1. Connect the probe to the REF input following the instructions in the manual.
2. Insert the probe in the suitable hole in the appliance.
3. Insert the standard thermometer in the appliance.
4. Set the first calibration point and wait for the appliance to be stable (see symbol ÷)
5. Enter the third menu level (see instructions) and select Cal_chnl= REF. Press E key to accept.
6. Select P1 and press the  or  key to set the value read with the standard thermometer. Press E
key to accept. Confirmation is indicated by the symbol * which appears on the display after about 5
seconds.
7. Return to the first menu level and set the second set point. Then wait for the appliance to be stable
(see symbol ÷).
8. Enter the third menu level (see instructions), select P2 and press the  or  key to set the value
read with the standard thermometer. Press E Key to accept. Confirmation is indicated by the symbol
* which appears on the display after about 5 seconds.
9. Select CAL: REF Set Yes and confirm pressing E Key. Calibration begins. The procedure takes a
few seconds. At the end there is a Beep.
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PTB 150 Instruction Manual
10.2 - Microprocessor regulator: control description
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PTB 150 Instruction Manual
10.3 - Communication Protocol Rs232/C
General characteristics:
Baud Rate:
N. Bit:
9600
8
Parity:
No
Bit of stop:
1
The communication runs in half duplex way which means that is transmission and reception could not be
contemporaneously present.
The regulator replies only after receiving command; it never replies itself.
The command and reply are ASCII character string, as detailed forward. The communication program will be
able to convert ASCII to decimal to extract numeric values. The default address is 1.
Baud rate: 2400, 4800, 9600 e 19200 baud, the Default value is 9600; the other parameters are standard.
VARIABILES AVAILABLE IN READING
0
Set point
1
Ramp ON/OFF
2
Set point 2
3
Gradient
4
Resolution
5
Prop. Band
6
Integral time
7
Derivative time
Sensor input selection
8*
9
Title
10*** Units (°C/°F/K)
13
Access key
14
Baud rate
15
Address
16
Serial number
18
Mx. set point
19
Min. set point
21
Wait ON/OFF
22
Switch on temperature
23
Switch off temperature
24
Version
25** Ext. Sensor type
26** Ref. Sensor type
28
Stability range
29
Symbol of steadiness
100
Temperature
105
Ext. temperature
106
Ref. temperature
VARIABILES AVAILABLE IN WRITING
0
Set point
1
Ramp ON/OFF
2
Set point 2
3
Gradient
4
Resolution
5
Prop. band
6
Integral time
7
Derivative time
Sensor input selection
8*
9
Title
10*** Units (°C/°F/K)
13
Access key
15
Address
25** Ext. Sensor type
26** Ref. Sensor. type
*
8* Sensor input selection
1
Correspond to the INTERNAL probe
2
Correspond to the INTERNA+EXT probe
3
Correspond to the INTERNA+REF probe
Correspond to the INTERNA+EXT
4
+REF probe
**
25/26** Ext. Sensor type/ Ref. Sensor type
0
Correspond to the Pt 100 4 wires
1
Correspond to the N thermocouple
2
Correspond to the K thermocouple
3
Correspond to the J thermocouple
4
Correspond to the R thermocouple
5
Correspond to the S thermocouple
6
Correspond to the Pt100 3 wires
7
Correspond to the E thermocouple
***
10***Units (°C/°F)
0
Correspond to the °C
1
Correspond to the °F
2
Correspond to Kelvin temperature
* the variable 8 is available only for the models SOLAR-2I-X; the value of the variable corresponds to the table.
** the variable 25/26 is available only for the models SOLAR-2I-X; the value of the variable corresponds to the table.
*** the value of the variable 10 corresponds to the table.
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PTB150-MAN-V13.2
PTB 150 Instruction Manual
Each commands string are ASCII character succession.
First is $ character; the next must indicate the instrument address (default 1) and than is the command (4
characters).
Possibility:
RVAR
WVAR
(data reading)
(data writing)
The ultimate part of string is depending of a type command. The character (cr) concludes the sequence
DATA READING:
Example 1) reading of the Set Point (0 variable):
the command string is: $1RVAR0_<cr>
Each characters means:
$
1
RVAR
0
_
<cr>
beginning of message
instrument address
reading command
number of the variable to read (see the table of the “VARIABILES” on the previous page)
space
end of message
the response string is: *1_110,0 (110,0 is only for example)
The character <cr> concludes the message.
Command to read the temperature of an external probe (index 25):
Example 2) reading of the EXT sensor (105 variable):
the command string is: $1RVAR105_<cr>
the response string is: *1_123,4 (123,4 is only for example)
The character <cr> concludes the message.
The response does not include the measure unity, to read the unity read the variable 10:
the command string is: $1RVAR10_<cr>
the response string is: *1_0 for °C
the response string is: *1_1 for °F
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DATA WRITING:
FLOAT VARIABLES
For writing you use the command WVAR.
Examples 1) writing of the Set point to 132,5°C
If the unity of measure of the temperature is already °C it is enough to write the SET POINT (see the table of
the “VARIABILES” on the previous pages).
the command string is: $1WVAR0_132,4<cr>
Each characters means:
$
beginning of message
1
instrument address
WVAR
writing command
0
number of the variable to read (see the table of the “VARIABILES” on the previous pages)
_
space
132,4
numerical value of a data with the character . to separate the decimal part of the number
<cr>
end of message
At reception of the command, the answer of the instrument is:
*1<cr>
This string shows the recognition of the command.
If the unity of measure of the temperature is not °C You should write first the variable 10 UNITS to 0(see the
table of the “VARIABILES” on the previous pages).
INTEGER VARIABLES
We have just shown the procedure for the writing of a float data.
The variables 1, 4, 8, 10, 25, 26 have two or more states (for example, the resolution by tenth or hundredth
of °C) and to activate them it is necessary to assign to the variable number the number corresponding to that
one which should be set, according to the table indicated below:
1
4
8
10
25
Ramp
Resolution
Sensor input selection
Units
Ext. Sensor type
26
Ref. Sensor type
ON = 1
OFF = 0
0.1°C = 0 0.01°C = 1
INT = 1
INT+EXT = 2
INT+REF = 3 INT+EXT+REF = 4
°C = 0
°F = 1 K=2
0 = Pt 100 1 = Tc N
2 = Tc K
3 = Tc J
4 = Tc R
5 = Tc S
6 = Pt 100 3 wires
7 = Tc E
as for the variable 25
Example 1: the variable 1 corresponds to the activation of the ramp. If you want to set it to ON in order to
activate the ramp, you should assign the value 0, otherwise the value 1.
the command string is: $1WVAR1_0<cr>
Example 2: the variable 8 corresponds to the activation of the sensor reading which can be connected to the
bushes of the external inputs. If you want to read the thermocouple K connected to the Ref. input, you should
set the variable 26 to the number corresponding to the type of sensor which you want to read (2 for the
thermocouple K) and then set the variable 8 to 3.
the command strings are: $1WVAR26_2<cr>
$1WVAR8_3<cr>
Do likewise for the other variables.
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10.4 - Standard equipment spare parts list
PTB 150
Reference number referring to the enclosed drawings
POS.
DESCRIPTION
SPARE PARTS CODE
1-3
FILTERED CUP SOCKET 2,5A FOR 230V
3SCH28366
3
2,5A T PROTECTION FUSE FOR 230V
3A T PROTECTION FUSE FOR 115-100V
3OMGSF520225
3OMGSF520231
4
SWITCH TEST PLUG-IN
3B&BPAN10A
5
RS-232
4MRCRS232
7
TEMPERATURE REGULATION CARD
+ DISPLAY
4ED20048
8
PT100 PROBE
3DC534
9
COMPLETE EQUALIZER BLOCK
0D2070-35
11
FAN ∅60
3PPS-8412NG
12
SUPPLY CARD FOR QUARTZ 100÷230V
4PRMPPGIUS20
15
AUXILIARY INPUT CARD
4ED20011
18
ELECTRIC POWER CABLE
3NEP5942AW
19
FAN ∅120
3PPS-4312
10.5 - Declaration of conformity and check report
The declaration of conformity CE is at the end of the English manual, the test report is included
with the calibrator
10.6 - Drawing and wiring diagram
The drawings are at the end of the English manual
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