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Related Manuals for Ametek Jofra RTC-125 A
Summary of Contents for Ametek Jofra RTC-125 A
- Page 1 User Manual Reference/Professional Temperature Calibrator Jofra RTC-125/157/158/159/168/187/250/700 A/B/C Jofra PTC-125/155/350/425/660 A/B/C GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
- Page 2 User Manual Reference/ Professional Temperature Calibrator JOFRA RTC-156/157/158/159/168/187/250/700 A/B/C JOFRA PTC-125/155/350/425/660 A/B/C Copyright 2012 AMETEK Denmark A/S GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
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Page 3: Table Of Contents
List of contents Introduction ............................. 4 List of equipment received ........................5 Safety instructions .......................... 6 Setting up the calibrator ....................... 11 Before use ............................... 11 3.1.1 Setting up a dry-block calibrator ....................13 3.1.2 Setting up a liquid bath calibrator (RTC-158/168/250 only) ............14 3.2 During use .............................. - Page 4 6.1.2 Transporting the liquid bath calibrator ................... 54 6.2 Emptying the well (liquid baths only) ......................54 128206 07 2021-11-19 page 3 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
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Page 5: Introduction
Introduction This user manual applies to the following instruments: Reference Temperature Calibrators • JOFRA RTC-156 A - Temperature calibrator • JOFRA RTC-156 B - Temperature calibrator with sensor and reference inputs • JOFRA RTC-156 C - Temperature calibrator with reference input •... -
Page 6: List Of Equipment Received
The RTC-156/157/159/187/700 A/B/C instruments and the PTC-series are all designed as dry- block calibrators, where as the RTC-158/168/250 A/B/C instruments are designed to be used both as dry-block calibrators and liquid baths. Read this manual carefully before using the instrument and ensure that all safety instructions and warnings are observed. -
Page 7: Safety Instructions
Safety instructions Read this manual carefully before using the instrument! In order to avoid any personal injuries and/or damage to the instrument all safety instructions and warnings must be observed. The screen menus shown in this manual represent the menus displayed when using a B- version Disposal –... - Page 8 (liquid baths) might cause a steam explosion. • Do not pour cold fluid into a hot well – it might cause an explosion. • AMETEK Denmark A/S does not take any responsibility, if the well is filled with other fluids than those recommended.
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Page 9: Caution - Hot Surface
• Heat transfer fluids must only be used in calibrators prepared as a liquid bath. If these fluids are heated above specified temperature they will create noxious or toxic fumes. Proper ventilation must be used. • To avoid hazards from treating fluids in a wrong manner, always reduce the "Max. - Page 10 To prevent this from happening, the insertion tube and the well must be dried. This is done by heating up the calibrator to min. 100°C/212°F until all water left has evaporated. Remove the insulation plug while heating up. It is very important that humidity in the well and insertion tube is removed to prevent corrosion and frost expansion damages.
- Page 11 • Scratches and other damage to the insertion tubes should be avoided by storing the insertion tubes carefully when not in use. • The insertion tube must never be forced into the well. The well could be damaged as a result, and the insertion tube may get stuck. •...
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Page 12: Setting Up The Calibrator
Setting up the calibrator Before use The RTC/PTC-B-versions have a precision reference input. To achieve the high precision, a set of sensor coefficients relating to the specific sensor must be present in the RTC/PTC. Before use of the RTC/PTC, ensure that the correct coefficients in the RTC/PTC are equal to those from the sensors calibration certificate. - Page 13 (liquid baths) might cause a steam explosion. • Do not pour cold fluid into a hot well – it might cause an explosion. • AMETEK Denmark A/S does not take any responsibility, if the well is filled with other fluids than those recommended.
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Page 14: Setting Up A Dry-Block Calibrator
3.1.1 Setting up a dry-block calibrator Follow the instructions below before using the calibrator: Warning Always position the calibrator to enable easy and quick disconnection of the power source (mains inlet socket). Place the calibrator on an even horizontal surface where you intend to use it. Caution …... -
Page 15: Setting Up A Liquid Bath Calibrator (Rtc-158/168/250 Only)
3.1.2 Setting up a liquid bath calibrator (RTC-158/168/250 only) Follow the instructions below before using the calibrator. Warning Always position the calibrator to enable easy and quick disconnection of the power source (mains inlet socket). Place the calibrator on an even horizontal surface where you intend to use it. Place it in a way that will minimize the risk of tilting. - Page 16 The sensor basket is marked with an optimum fluid level mark (100%). When filling the well with fluid and placing the sensors, this mark must never be exceeded. RTC-250 A/B/C RTC-158/168 A/B/C For recommended 50 cSt oil For recommended 5/10 cSt oil 0°C - 50°C 100% -30°C - 25°C...
- Page 17 If the fluid is heated beyond the flash point, it may constitute a fire hazard. • AMETEK Denmark A/S does not take any responsibility, if the well is filled with other fluids than those recommended. If the fluid has caught fire, switch off the main power to prevent further heating of the fluid.
- Page 18 Place the calibration lid (see fig. 2a+b) onto the well. Holes with a boring diameter matching the sensors to be calibrated must be drilled into the lid before using it. Place the sensor under test (see fig. 2a+b) and the reference sensor – if available - to be calibrated vertically into the well.
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Page 19: During Use
During use Caution – Hot surface This symbol is visible on the grid plate. • Do not touch the grid plate, the well or the insertion tube while the calibrator is heating up – they may be very hot and cause burns. •... -
Page 20: Keyboard
Keyboard The keys on the keyboard activate the following functions: Keys Description Full colour VGA display (main screen display information – see section 3.5) NUMERIC KEYS to select menu options displayed in the horizontal and vertical menus and to type in values BACK KEY to cancel a selection/edit or return to previous menu. -
Page 21: Main Screen Display
Main screen display Main screen display The Main screen display is divided into five separate areas. This image shows the RTC main screen display: Pos. Description RTC PTC Heading: Informs you of the current menu selected. Setup field: Provides the bulk of setup data in the menu. This data can be changed by moving the cursor to the various fields. - Page 22 Pos. Description RTC PTC WARNING/ERROR symbol. The yellow icon indicates a warning. The red icon indicates an error. When the error symbol is displayed the calibration results cannot be saved. See the reference manual for details concerning warnings and errors. Stirrer activated/speed indicator.
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Page 23: Standard Connections
Standard connections Communication connections This image shows the RTC-model. Pos. Description RTC PTC SD-card: SD/MMC card slot Ethernet: Ethernet MAC 10/100 base-T, RJ45 Sync.: Sync. Relay output, 3.5 mm Mini Jack Host: USB 2.0 Double Host Port, 2 x USB A Device: USB 2.0 Device Port, 1 x USB B 128206 07 2021-11-19... -
Page 24: Input Sections (B And C Versions Only)
Input sections (B and C versions only) Warning The input terminals must NEVER be connected to voltages exceeding 30V with reference to ground. Description of sockets for external connections This image shows the RTC-model. Pos. Description Input for reference sensor (B and C versions) Input for DLC sensor (B and C versions) Connection for thermostat switch test (B-version) Note that this connection is for voltage free switches... -
Page 25: Stability Of Temperature Values
Stability of temperature values The stability of the TRUE and SENSOR temperatures are indicated by the following messages: • : ”Not stable": Indicates that the measured temperature is not yet within the specified stability criteria. • : Indicates "Time to stable": The temperature changes are within the specified stability 4:32 criteria (see chapter 8.0) and states a time (in minutes and seconds) when the stable situation can be achieved. -
Page 26: Operating The Calibrator
Operating the Calibrator Operating principle Note … Please note that the keyboards of the RTC and PTC instruments are different. Only the RTC-models have NUMERIC keys and ENTER key. Whenever the NUMERIC keys and ENTER key are mentioned in this manual, the text is referring to the RTC-models only. -
Page 27: Vertical Menu
4.1.2 Vertical Menu The vertical menu list can be called at any stage of operation making it possible to jump to the desired menu. This allows you to jump to the most used menu easily - no matter where you are. 1. -
Page 28: Working With Lists
The parameter field area focus is indicated by • The horizontal menu is now shaded • The parameter field area has a blue frame (RTC only) • The selected parameter field highlighted with a dark blue color (RTC only) • The selected parameter field is highlighted with a dark grey colour (PTC only) °... - Page 29 2. Press ARROW UP to move the focus from the horizontal menu to the list. The selected data set in the list is now highlighted with a dark blue color. 3. Scrolling in the list is done using the ARROW UP key and the ARROW DOWN 4.
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Page 30: Starting The Calibrator
6. Scroll through the list using the ARROW UP key and the ARROW DOWN key and just press to display the result of the highlighted dataset. Starting the calibrator Switch on the calibrator using the power control switch. A start up screen is displayed and then replaced with the main menu screen: °C The functions in the horizontal menu are available using the soft keys or the arrow keys on the... -
Page 31: Calibration (Optional - Ptc)
Calibration (optional - PTC) Note … This Calibration function is for B versions only. This function enables you to perform automatic calibrations of different temperature sensors. The calibration procedure is semi-automatic, using parameters and settings, which are defined in workorders. These workorders are created and edited using the "JOFRACAL" PC program. Multiple calibrations can be performed using the same workorder settings. - Page 32 23.50 The Parameter setup menu is displayed. Note … If the sensor under test is a thermocouple sensor and the manual compensation mode is selected in work orders, a cold junction temperature must be defined. The parameters in the workorder can be edited. Note …...
- Page 33 The following screen is displayed : If manual readings are specified these will have to be entered before next step starts. Note … The calibration can be stopped at any time by activating “Stop”, but this will erase the calibration results. During calibration several other functions are available: “Result”...
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Page 34: Viewing Calibration Results
4.7.2 Viewing calibration results 1. Access the Calibration Result function by selecting “Results” from the Workorder List menu. A full Calibration Result List is displayed. 2. Select a workorder to be displayed showing the calibration details for the specific workorder. 3. - Page 35 2. Select “Notes” to access the Notes function. A list of Workorder Notes is displayed. The notes are information entered via the PC program, when the workorder is created. 3. Press to exit the Workorder Notes screen. 4. Select “Scenario” to access the Scenario function. A Workorder Scenario is displayed.
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Page 36: Deleting Workorders
4.7.4 Deleting workorders It is possible to delete a workorder using the Delete function from the Workorder List menu. 1. Select “Delete” to access the Delete function. 2. Press “Yes” if you want to delete your workorders and “No” if you want to exit the Delete function without deleting anything. -
Page 37: Showing Switch Test Results
A Switch test setup menu is displayed. The small graph illustrates the current T and hysteresis selections. Note that T can be greater than T 2. Access the setup field to edit the parameters: • - first set temperature • - second set temperature •... - Page 38 Results during a switch test 1. Access the Switch Test Result List by selecting “Result” from the Switch Test menu. This shows the results that are currently available. These results change as the test progresses. 2. Press to return to the switch test. Finished switch test results At the end of a switch test the results are displayed.
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Page 39: Auto Step Menu
5. Delete the result by selecting “Discard” or save the result by selecting “Save”. To view stored switch test results 1. Access the Switch Test Result List by selecting “Results” from the Switch test setup menu. 2. Select a test result to be displayed. 3. - Page 40 • No of steps: the number of temperature steps per direction (T T ) can be set using integers from 1 – 20. When a Two-way mode is selected, the same T number of steps are used for the second direction (T •...
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Page 41: Auto Step Test Results
6. Select “Save” to save the results storing them in the calibrator’s memory. 7. Select “Discard” to delete the results from the screen. The calibrator then returns to the Auto Step Setup menu. 4.9.2 Auto Step test results At the end of an Auto Step test the results are displayed and stored in the calibrators memory. -
Page 42: Setting The Additional Stability Time (A Version)
4.10.1 Setting the additional stability time (A version) 1. Set the additional stability time by pressing and the NUMERIC keys (RTC only) / ARROW keys (PTC only). Stability time can be set (in minutes) using integers from 0 – 99. 4.10.2 Setting the parameters for TRUE –... -
Page 43: Setting The Parameters For Dlc- Dynamic Load Compensation - (Rtc, B And C Versions Only)
Note … SET follows TRUE is only relevant when the External reference sensor is displayed in temperature units. Stability tolerance: The tolerance should be set low enough to utilize the good temperature stability of the calibrator – however a low value also gives a longer time to be stable. Stability time: Stability time can be set from 1 –... - Page 44 Convert to temperature: (using thermocouple, voltage, current and RTD) • “yes” – the inputs are converted to temperatures. • “no” – no conversion is made. When “no” has been selected the type of model is the only other parameter which can be altered. Model: (using thermocouple and RTD) 1.
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Page 45: Viewing The Reference And Dlc Data (B And C Versions Only)
Use stability criteria: (using thermocouple, voltage (RTC only), current and RTD) Beside the stability check on the Reference sensor, it is also possible to ensure that the Sensor Under Test (SENSOR) is stable before the temperature is indicated as stable. •... -
Page 46: Calibrator Setup Menu
4.11 Calibrator Setup menu 1. The Calibration Setup can be edited through the vertical menu (press 2. Activate “Calibrator Setup”. 4.11.1 Setting the temperature parameters Temperature unit: 1. Choose between: • °C (Celsius) • °F (Fahrenheit) • K (Kelvin) Min SET temp / Max SET temp: 1. -
Page 47: Setting The Temperature Resolution
Caution … If you choose to let your access code consist of only 1, 2 or 3 digits you must enter the access code with 0 followed by the chosen value. Example: 1. The access code 12 is selected. 2. Type in 0012 in the Enter Access Code box Note …... -
Page 48: Setting Recalibration Interval
Volume: 1. The volume of the sound can be adjusted from 0 – 100%. Operating mode (RTC only): 1. Choose between : • Fast • Silent “Fast” – the fan operates in a fast mode giving the best performance of cooling. “Silent”... -
Page 49: Saving A Setup
4.11.7 Saving a setup Saving a setup saves parameters in the Setup menu. 1. Access the Instrument Settings menu by selecting “Load/Save” from the Calibrator Setup menu. The Instrument Settings are displayed. 2. Select a register number to be used for saving. The setup will be saved with the selected register number. -
Page 50: Network Configuration (For Service Use Only)
4.11.10 Network Configuration (for service use only) 1. Access the Network Configuration function by selecting “Network” from the Calibration Setup menu. The Network Configuration screen is displayed. When DHCP is set to Enabled, the IP address will be updated when leaving the network menu. -
Page 51: Information Screen
When using the RTC-158/168/250 A/B/C with a dry block kit the stirrer speed must be set to 0. The DLC will be disabled when the stirrer is started Caution … If the speed level chosen is too high, the magnet will fall off making a rattling sound and there will be no stirring in the fluid. -
Page 52: Setting The Mains Voltage And Replacing The Main Fuses
Setting the mains voltage and replacing the main fuses Warning • The calibrator must be switched off before any attempt to service the instrument is made. There are no user serviceable parts inside the calibrator. • The fuse box must not be removed from the power control switch until the mains cable has been disconnected. -
Page 53: After Use
After use Storing and transporting the calibrators Caution… The following guidelines should always be observed when storing and transporting the calibrators. This will ensure that the instruments and the sensors remain in good working order. Warning • The calibrator must be switched off before any attempt to service the instrument is made. -
Page 54: Caution - Hot Surface
Fig. 4 Removing insertion tube Caution – Hot surface Do not remove the insert from the calibrator before the insert has cooled down to less than 50°C/122°F. Caution … The insertion tube must always be removed from the calibrator after use. The humidity in the air may cause corrosion oxidation on the insertion tube inside the instrument. -
Page 55: Transporting The Dry-Block Calibrator
6.1.1 Transporting the dry-block calibrator Caution … The insertion tube must be removed to avoid damage to the instrument if the calibrator is to be transported long distances. 6.1.2 Transporting the liquid bath calibrator Warning Do not move the liquid bath calibrator containing hot fluid. When spilled the fluid might cause serious wounds. - Page 56 • Never leave hot items, which have been removed from the well, unsupervised – they may constitute a fire hazard or personal injury. The following guidelines must be observed before emptying the well : Switch off the calibrator using the power control switch. Before handling the fluid, it must be cooled down to a temperature close to ambient.
- Page 57 Information in this document is subject to change without notice. ©2020, by AMETEK, Inc., www.ametek.com. All rights reserved. GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
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