The PTB 600 is a portable temperature calibrator designed for use in laboratories and industrial settings. It is suitable for control and calibration of thermocouples and temperature sensors, conforming to ISO 9000 standards. The calibrator is designed to reduce the EMC effect in accordance with harmonized regulations for residential, commercial, light industry, and heavy industry. It can be operated automatically or manually to calibrate multiple probes and cyclically check temperature sensor long life or stress conditions. Registration and print results can be obtained according to ISO 9000 standards.
Function Description
The PTB 600 calibrator consists of an anticorodal block fitted with holes into which the sensors to be calibrated are inserted. A heater element heats the block, and an electronic microcontroller with Triac output checks and regulates the temperature. A fan mounted in the rear side generates a constant air flow that reduces the temperature of the case.
The thermo-regulator (7) is a PID microprocessor, which can be set from 0 to 550°C (600 for model BA). The display shows the upper line indicating the temperature measured inside the block, and the lower line indicating the set point or external probes. The ▲ and ▼ keys are used to increment or decrement any numerical parameter. The increment (decrement) speed is proportional to how long the key remains depressed. The F key allows access to the various parameters (repeatedly press), and access to the various phases of configuration (press F + ▲). The E key allows confirming the set parameter. The calibrator is endowed with eight terminals (optional) that can be set as Pt100 or Tc.
The main switch (2) is fitted with a socket for the voltage cable, and the main switch and two fuses are located on the front panel. The calibrator is supplied with a maximum temperature safety thermostat (10) that disconnects the heating system. In case the thermostat intervenes, the cooling of the calibrator must decrease at least 60-80°C with respect to the maximum set point. To reset the thermostat, switch off the calibrator and then switch on again a few seconds later. If the problem persists, disconnect the electrical cable to the oven and proceed to repair of eventual faults (reference to paragraph 4); otherwise, switch on the oven.
The temperature sensor used for regulating is a Pt100, and the temperature sensors used to protect the instrument are thermocouples. Both are inserted directly into the equalization block so as to supply a temperature value close to the real value in the block.
Important Technical Specifications
The PTB 600 is a portable temperature calibrator with a 50mm diameter and 35mm insert depth.
- Operating Temperature: Environment +600°C
- Stability: ±0.05°C at 450°C
- Reading Accuracy: ±0.3°C at 450°C
- Maximum Ascent Rate: 20-22°C/1'
- Maximum Descent Rate: 6÷10°C/1' (at = 300°C)
- Standard Insert: 5 holes Ø3,5-4,5-6,5-9,5-11,5 x 185mm
- Weight of Calibrator: 10Kg
- Display Resolution: 0,01/0,1°C
- Reading Accuracy: ±0.3°C at 450°C
- Regulation & Reading Probe: Pt 100 class A din43760
- Auxiliary Input: Pt100 and Tc J, K, N, R, S, E (only for Model 2I)
- Reading: °C or °F or K
- Interface: RS 232
- Temperature Ramps: Minimum 0,1°C/1'
- Thermostat Test: 12 Vcc
- Power Supply: 230V 50/60Hz (110/115V by request)
- Power: 800VA
- Size: 140x370 x 330 mm
- Case Size: 330x520 x H. 500 mm
- Customized Insert: Drilled holes for best accuracy
The PTB 600 is available in various models:
- PTB600-TS-230-UK/US/EU: Temperature Calibrator, Tamb to 600 °C TS version 230 VAC
- PTB600-TC-230-UK/US/EU: Temperature Calibrator, Tamb to 600 °C TC version 230 VAC
- PTB600-TS-115-US: Temperature Calibrator, Tamb to 600 °C TS version 115 VAC
- PTB600-TC-115-US: Temperature Calibrator, Tamb to 600 °C TC version 115 VAC
- PTB600-INS-01: Insert blank DN35x190 mm
- PTB600-INS-02: Insert DN35x190 mm with 5 holes: φ 3,5-5,0-6,5-8,5-12,5 mm.
- PTB600-INS-03: Insert DN 35x190 mm custom (max 5 holes from 3,5 to 20mm)
- PTB600-INS-04: Insert DN35x190 mm custom (max 3 holes from 3,5 to 20mm)
- PTB600-INS-05: Insert DN35x190 mm custom (max 2 holes from 3,5 to 20mm)
- PTB600-INS-IR: Black body insert DN 35x190 for reference sensor
- PTB600-TC-OPT-01: SRS PRT 45-190B reference sensor with special UKAS calibration
- PTB-CASE-02: Aluminium Transport Case with space for accessories (PTB/PLB)
- PTB-CASE-01: Vinyl Case with Pockets for accessories (PTB/PLB)
Usage Features
- Removal of Packaging: Remove the calibrator from its packaging and place it on a flat surface.
- Positioning the Calibrator: Position the calibrator in a safe, clean place, leaving enough space around the calibrator to allow air to circulate.
- Supply: The calibrator runs on a voltage of 230 Vac (115V by request), 50/60Hz. A 2.5mt cable is supplied with the calibrator fitted with 3 conductors plus earth. Make sure the plant is earthed correctly before switching the instrument on.
- Start-up Instructions: Before starting the calibration, ensure the user has a good knowledge of its basics. Follow the instructions for positioning the equalizing block and carefully read paragraph 3 and 4.
- Calibration with Internal Indicator (7): Make reference to the temperature value of the display (7: fig.4). It is opportune to refer the value to the test report to compensate the error of the display.
- Calibration with External Reference and Reading on Calibrator Display: Make reference to the temperature value of the external standard instrument inserted in the equalizer block and connected directly to the Solar (Fig.5). The temperature is read on the second line of display (for the configuration of the external reference seeing 10.1). When possible: put the sensitive elements of the probes near and at the same depth (Reference to Fig.1-3).
- Calibration with External Reference and Reading on an External Instrument: Make reference to the temperature value of the external standard instrument inserted in the equalizer block and connected to an external instrument (Fig. 5). When possible, put the sensitive elements of the probes near and at the same depth (reference to fig.1-3).
- Reading the External Probes (only TC version): It is possible to display one or two probes tied to the EXT and REF inputs. The following probes can be connected:
- THERMOCOUPLES TYPE J, K, R, S, N, E with automatic compensation of the terminal clamp temperature.
- THERMAL RESISTANCE Pt 100 to 2, 3 or 4 wires.
- Connecting the Probe’s Wires to the Clamps: Connect the probe’s wires to the clamps as indicated in the figures.
- Thermocouples: Connect the wires to the clamps 2-3 to make attention to the polarity; connect the clamps 1-3 as indicated.
- Pt100 to 4 Wires: Connect the clamps 1-2-3-4 as indicated in Fig. 7-B.
- Pt100 to 3 Wires: Connect the wires to clamps 1-2-3; connect the clamps 1-3.
- Pt100 to 2 Wires: Connect the wires to clamps 2-4; connect the clamps 1-2 & 3-4. In case of two wires connections remember to us shortest wires possible.
- Switch Test (SW. ON SW. OFF): It is possible to control the intervention point of thermostats by the 'SWITCH TEST' function.
- Insert the sensor of the thermostat in the most suitable hole of the calibrator.
- Connect the thermostat’s electrical terminals to the bushes terminals (4).
- Turn the equipment on.
- Set the thermostat intervention temperature and check the release by the lighting of the indication light (7.3).
- The thermostat’s release values are recorded. In order to display the recorded value, refer to the procedure explained in paragraph 10.1 till 'SW ON - SW OFF'.
- Press the
▲ and ▼ keys at the same time in order to reset the 'SW.ON - SW.OFF' values.
- Refer to paragraph 10.1 to set the ascent and descent ramps.
- Serial Communication: On the front of the calibrator there is a 9 pole socket (5) connected to the thermo-regulator, which enables the calibrator to be completely controlled by a PC (reference to table: The standard adopted RS-232 (contact the technical department for the communication number). The external PC must be conform to the IEC950 standard.
Maintenance Features
- Routine Inspections: Check that the holes of the calibrator are cleaned, any liquid or oil inside the hole could make oxides or dirty during the use at high temperature.
- Clean once a year the calibration oven. Frequency of calibration is depending to the use of instrument; however, we suggest to calibrate the instrument every year.
- To re-calibrate the instrument, it 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.
Safety Instructions
- 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 handling, operation and maintenance.
- 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.
- CAUTION: HOT SURFACE OR PART
- CAUTION: REFER TO ACCOMPANYING DOCUMENTS
- CAUTION: RISK OF ELECTRICAL SHOCK
- Due to the fact that the calibrator is a portable instrument to be used in the field, it is very important to ensure that the asset has been earthed correctly when connecting it to the power 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 stabilization at ambient temperature before returning the calibrator to its carrying case. Don’t switch off the calibrator when it works at high temperature because the protection grid and the carpentry may overheat.
- Never put any type of liquid inside the block.
- Don’t change absolutely the configuration parameters.
- Don’t put anything on the top of the calibrator.
- Do not connect any voltage higher than 5V to the input 4-5-15.
- Don’t put fuel object near the calibrator.
- Use common sense any time.
The equipment adopts the following devices to protect operation from hazard:
- Max. temperature safety thermostat (10) to disconnect the heating system.
- Protection grid to avoid any contact with the internal oven.
- Protection fuses (3).
- Ground conductor.
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