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Related Manuals for SIKA MC 75.2
Summary of Contents for SIKA MC 75.2
- Page 1 Operating manual (Translation) Operating manual ............ page 1 - 64 Multifunction simulator Type MC 75.2 Please keep this operating manual for future reference. If the device is resold, please provide the operating manual along with it.
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Page 2: Table Of Contents
2.2.10 Pressure measuring ..................... 28 2.2.11 Pressure switch test ..................... 29 Generation / Simulation .................... 30 2.3.1 Voltage generation (DC) ..................31 2.3.2 Current generation (DC) ..................31 2.3.3 Resistance generation ..................32 - 2 - © SIKA • Ba_MC75.2_en • 03/2017... - Page 3 MC 75.2 2.3.4 Temperature simulation (RTD) ................33 2.3.5 Temperature simulation (Thermocouple) ............33 2.3.6 Frequency generation (signal) ................34 2.3.7 Frequency generation (dry contact) ..............34 2.3.8 Pulse generation ....................35 Advanced Operation ..................... 36 Simulation Modes ...................... 36 3.1.1...
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Page 4: About This Operating Manual
Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design. - 4 - © SIKA • Ba_MC75.2_en • 03/2017... - Page 5 90 days and that it has been correctly recorded on non-defective media. SIKA does not guarantee that the software contains no errors or that it will operate without interruption.
- Page 6 Checks the package contents: All MC 75.2 units are mechanically and electrically checked before delivery. The necessary precautions have been taken to ensure that they reach the user undamaged.
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Page 7: General
General General 1.1 Introduction The MC 75.2 is a multifunction calibrator. It is specially designed for calibration and mainte- nance and can measure and simulate physical and electrical quantities, either on site or in the laboratory. It can perform all the following functions: •... -
Page 8: About This Guide
Part 2 contains brief handling information and a description of the various modes of opera- tion. Part 3 contains a description of the advanced functions. Part 4 contains the technical specifications of the MC 75.2. 1.2 Instrument General characteristics: •... -
Page 9: Housing
Four connection terminals for the "transmit/simulate" function ---OUT--- ( § 2.2.3). The 8 terminals of the MC 75.2 are of the "push & lock" type. They accept 4 mm banana plugs, bare wires, spade terminals and miniature connectors for thermocouples. -
Page 10: Side Connectors
The connector for the pressure sensor is located on the right-hand side of the unit. 1.2.5 Screen The MC 75.2 is fitted with an LCD graphical display which is backlit with white LEDs. The res- olution of the display is 240 x 320 pixels. -
Page 11: Keyboard
MC 75.2 General 1.2.6 Keyboard The keyboard contains: • 4 blank function keys to select the various menus shown on the screen. Note: for the purposes of this manual, the keys are referred to as F1, F2, F3 and F4 but are not labelled on the unit. -
Page 12: Batteries And Charger
Unfold the stand on the back of the unit and place the MC 75.2 on a desk ( Fig.). The MC 75.2 is supplied with an unbearable strap and two pins to attach the strap to the case. Before attaching the strap, pass the free end through the fixing loop as in the figure. -
Page 13: General Description
- Scaling - … The Start procedure checks that the unit is working correctly and initialises the various tasks that are continuously executed during operation of the MC 75.2. • The "Measurement" task is responsible for the configuration, post-processing and dis- play of measurements. -
Page 14: User Interface
It is possible to cancel the selection at any time and return to the main menu by pressing the ESC key. - 14 - © SIKA • Ba_MC75.2_en • 03/2017... - Page 15 MC 75.2 General The dialogue box interface is intuitive. It is managed by the function and navigation keys. The tabulation key is used to select the next item from all the items in the dialogue box. For example, to select the “Type of scale” field on the following screen, press the once.
- Page 16 For example, the state of the "Power supply loop" field can be changed from OFF to ON using the Down and Up navigation keys. During operation of the MC 75.2 , several symbols are displayed to simplify selection and in- dication of the current functions.
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Page 17: Safety
MC 75.2 General Symbol Description Indication symbols Transmission in incremental mode Transmission in staircase mode Transmission in simple ramp mode Transmission in cyclic ramp mode Transmission in synthesiser mode Transmission in% of Full Scale mode (% FS) Transmission in valve test mode... -
Page 18: Unusual Faults And Stresses
It is the classification of the installation according to standard limits for transient overvoltag- es (standard CEI 664). Table of symbols used Symbol Description Earth point Complies with European Union directives - 18 - © SIKA • Ba_MC75.2_en • 03/2017... -
Page 19: Service
General 1.5 Service The MC 75.2 must always be set up according to the instructions in this notice. Incomplete or poorly executed setting up may adversely affect the safety of the operator. The responsible authority must ensure on a regular basis that factors affecting safety do not change with time and carry out any necessary preventive work. -
Page 20: Getting Started
MC 75.2 Getting started In order to use the MC 75.2 unit in complete safety, users must carefully read paragraph 1.4 (page 17) which, among other things, deals with safety before handling. It is advisable also to read the following paragraphs: ... -
Page 21: Measurement
MC 75.2 Getting started 2.2 Measurement For all measurement functions, open the measurement window with function key F2 (IN). A rectangle surrounds the top window on the screen. To choose a measurement function, press key F1 (configuration). Select the Function …... -
Page 22: Voltage Measurement (Dc)
Loop power supply possible possible Set to scale linear or square law linear or square law If loop power supply is on, the connection is made between terminals 4-w and mA. - 22 - © SIKA • Ba_MC75.2_en • 03/2017... - Page 23 MC 75.2 Getting started In this case, the MC 75.2 supplies a passive transmitter with 24 V and at the same time measures the current established by the transmitter. If the loop power supply is off, the connection is made between terminals mA and COM.
- Page 24 Getting started MC 75.2 In the case of the 4-20 mA range, the scale curve is as follows: The MC 75.2 displays in the window details of the selected configuration using the following icons: : to show loop power supply off.
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Page 25: Resistance Measuring
of the same length, of the same diameter, of the same type of metal. The MC 75.2 displays an icon showing the connections used ( for 2 wire, for 3 wire 4 wire) to make the measurement. The wiring arrangement is automatically detected by the calibrator. -
Page 26: Frequency Measuring (Signal)
Counting measurement function, then the Signal Hard Contact "type of input" using the func- tion and navigation keys. • Enter the counting time using the alphanumeric keys. • Confirm with ENTER. - 26 - © SIKA • Ba_MC75.2_en • 03/2017... -
Page 27: Temperature Measurement (Rtd)
Pt 100 (α = 3851) The resolution is 0.01 °C for all the available resistive probes. JPt 100 (α = 3916) The MC 75.2 displays an icon showing the connections used Pt 100 (α = 3926) for 2 wires, for 3 wires or for 4 wires) to carry Pt 200 (α... -
Page 28: Temperature Measurement (Thermocouple)
Confirm with ENTER. Connect the pressure sensor on the right-hand side of the unit ( § 1.2.4 "Side connectors"). If this is not connected or is defective, an error message will be displayed. - 28 - © SIKA • Ba_MC75.2_en • 03/2017... -
Page 29: Pressure Switch Test
Getting started 2.2.11 Pressure switch test The MC 75.2 can detect the opening or closing of a contact (switch) and acquire the value of pressure at the moment that this change of state occurs. In this case, the pressure measurement function is configured from the transmission part. -
Page 30: Generation / Simulation
ENTER key. A TRANSMISSION CONFIGURATION dialogue box is displayed. The connections in the Transmission mode are made to the four "OUT" terminals located on the right half of the unit. - 30 - © SIKA • Ba_MC75.2_en • 03/2017... -
Page 31: Voltage Generation (Dc)
Connection is made between the mA and COM terminals. If the loop power supply is on, the MC 75.2 simulates a passive transmitter supplied with 24 V internally. Technical changes reserved - 31 -... -
Page 32: Resistance Generation
Getting started MC 75.2 If the loop power supply is off, the MC 75.2 simulates a passive transmitter supplied with 24 V externally. When the square law scale is selected, it must be acti- vated by using the Configuration Set to scale menus. -
Page 33: Temperature Simulation (Rtd)
MC 75.2 Getting started 2.3.4 Temperature simulation (RTD) TRANSMISSION CONFIGURATION • Display the dialogue box. • Select the "transmission function", then the ap- propriate "type of probe" and range using the func- tion and navigation keys. • Select the measurement current. -
Page 34: Frequency Generation (Signal)
The display units may be in Hz or Beats per minute (BPM). Connection of the frequency source generated is between the Hz and COM terminals. - 34 - © SIKA • Ba_MC75.2_en • 03/2017... -
Page 35: Pulse Generation
MC 75.2 Getting started 2.3.8 Pulse generation TRANSMISSION CONFIGURATION • Display the dialogue box. • Pulse Select the transmission function, then the range using the function and navigation keys. • Select the "Type of Output" Signal. • Enter the amplitude of the signal between 0 and 20 V. -
Page 36: Advanced Operation
Advanced Operation MC 75.2 Advanced Operation 3.1 Simulation Modes Several transmission modes are available in the MC 75.2 to facilitate rapid checking and cali- bration of instruments and transmitters. To change the transmission mode, open the transmission window using the function key (F2). -
Page 37: Incremental Editing
MC 75.2 Advanced Operation 3.1.2 Incremental Editing When this mode is active, the icon appears in the transmission window. Use the 4 navigator keys to edit the value to be transmit- ted. To select a digit, use the Left and Right keys of the navigator. -
Page 38: Steps
Minimum amplitude of the signal. Maximum amplitude of the signal. Amplitude of the increment. Duration of the steps in seconds. Delay: Delay in seconds between launching the staircase and transmission of the first increment. - 38 - © SIKA • Ba_MC75.2_en • 03/2017... -
Page 39: Simple Ramp
MC 75.2 Advanced Operation During generation of a staircase, a progress bar indicates the state of progress. The function keys can be used to control generation: • key stops generation at any time. • key suspends generation. • key commences or resumes generation. -
Page 40: Cyclic Ramp
The function keys can be used to control generation: • key stops generation at any time. • key suspends generation. • key commences or resumes generation. • icon in the transmission window indicates suspended generation. - 40 - © SIKA • Ba_MC75.2_en • 03/2017... -
Page 41: Synthesiser
MC 75.2 Advanced Operation 3.1.7 Synthesiser The synthesiser function is used: • to store up to 100 transmission values in permanent memory, • to recall and transmit the contents of these memories manually or automatically. When this mode is active the icon appears in the transmission window. -
Page 42: Transmitter Mode
Down keys to select a point. ENTER transmits the selected point and Left / Right select and transmit the previous / next point in the list immediately. 3.1.8 Transmitter Mode This mode is used to transmit a value identical to the measured value. - 42 - © SIKA • Ba_MC75.2_en • 03/2017... -
Page 43: Scaling
MC 75.2 Advanced Operation 3.2 Scaling The scale correction function performs a conversion between the electrical quantities meas- ured and the physical quantities converted. This linearization is used partially to correct errors induced by non linear sensor / converter systems. -
Page 44: Null / Tare / Offset
ZERO Festlegen… menu is used to program the Tare value (positive or negative). This value is subtracted from the measurements: Value displayed = Value measured – Tare Value - 44 - © SIKA • Ba_MC75.2_en • 03/2017... -
Page 45: Calibrated Sensors
MC 75.2 Advanced Operation 3.4 Calibrated sensors The "calibrated sensors" function of the MC 75.2 makes it possible to use sensors of which the calibration (correction) factors can be taken into account by the unit at the time of meas- urement. - Page 46 They appear at the top of the list, in front of the standard sensors. Their name is preceded by the '*' character, indicating that these are calibrated sensors. - 46 - © SIKA • Ba_MC75.2_en • 03/2017...
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Page 47: Calibration Procedure
Advanced Operation 3.5 Calibration procedure The MC 75.2 is capabable of creating a calibration report from a pre-defined procedure. The number of procedures that can be recorded depends on the size of the available memory and the size of each procedure (number of test points). If the memory is not being used by other functions, it is possible to record several tens of procedures. - Page 48 Settling time: The settling time field can be used to define the time, in seconds, between sending the set- ting from the output of the MC 75.2 and making the measurement at its input. • When all fields have been completed, confirm with ENTER.
- Page 49 MC 75.2 Advanced Operation • Press the key F3 (Execute) to execute the proce- dure. • After completing the fields, start execution by press- ing the key F3 (Execute). Where the procedure is executed manually, the user will have to confirm the calibration points one by one.
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Page 50: Memory Functions
Advanced Operation MC 75.2 3.6 Memory functions The MC 75.2 is capable of storing 10,000 values in one or more acquisition bursts. • Press the key F2 to open the ‘IN’ window and display the Measurement menu bar. • Open the Configuration menu by pressing the key •... - Page 51 MC 75.2 Advanced Operation Burst / record display: The burst can be displayed as a table of values or a trend curve. At this level, markers can be set (F1 and F2 function keys) and all values falling between these 2 markers can be displayed in graphical form.
- Page 52 At this level, a burst can be renamed or one or more bursts can be deleted. Statistics: Shows the number of bursts - in memory, - the number of free bytes and - the number of measurements that can be saved. - 52 - © SIKA • Ba_MC75.2_en • 03/2017...
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Page 53: Customer Specific Configurations
ENTER. When loading a saved configuration, the MC 75.2 enters the manual Edit mode in transmission. To erase the configurations of the MC 75.2, open the maintenance mode (Password 9456). Init EEP Use the function key to reset the configurations of the unit to zero. -
Page 54: Instrument Setup
Advanced Operation MC 75.2 3.8 Instrument Setup The parameters of the MC 75.2 can be set using the Configuration Setup menus. Contrast… sub menu is used to adjust the contrast of the display. Date/Time… sub menu is used to set the date and time of the unit. -
Page 55: Preferences
MC 75.2 Advanced Operation 3.8.3 Preferences Configuration Setup. Preferences To display the Preferences dialogue box, use the menus. Adjustable Parameters Filtering: Used to average measurements before display. When fil- tering is switched off, the integration time for measure- ments is 0.5 seconds. -
Page 56: Technical Specifications
Loop power supply = 24 V ± 10%. • HART compatibility: input impedance Rin = 280 Ω. • Linear or square law display scale. Use the absolute value of the value measured (|L|) to calculate the accuracy. - 56 - © SIKA • Ba_MC75.2_en • 03/2017... -
Page 57: Resistance Measurement
MC 75.2 Technical Specifications 4.1.3 Resistance measurement Range Resolution Accuracy Notes 400 Ω 1 m Ω 0.012 % of rdg. + 10 m Ω Measurement current = 0.25 mA 4000 Ω 10 m Ω 0.012 % of rdg. + 100 m Ω Measurement current = 0.25 mA Temperature coefficient <... -
Page 58: Temperature Measurement (Rtd)
The above accuracy is given for 4 wire connection of the temperature sensor. • Taking into account, also, the intrinsic error of the temperature sensor used and its con- ditions of use. • Measurement current: 0.25 mA. - 58 - © SIKA • Ba_MC75.2_en • 03/2017... -
Page 59: Frequency Measurement And Counting
MC 75.2 Technical Specifications 4.1.6 Frequency measurement and counting Range Resolution Range of measurement Accuracy Notes 20 kHz < 0.01 Hz 1 Hz up to 20 kHz 0.005 % of rdg. • Temperature coefficient < 5 ppm/ °C from 0 °C to 18 °C and from 28 °C to 50 °C. -
Page 60: Transmission / Simulation Function
Standardized to IEC 584-1/1995 (thermocouples K, T, J, E, S, B, N). • According to DIN 43710 (thermocouples U and L). • According to tables of HOSKINS (thermocouple C) . • According to table of ENGELHARD (thermocouple platinum) - 60 - © SIKA • Ba_MC75.2_en • 03/2017... - Page 61 MC 75.2 Technical Specifications Sensor Range of measurement Resolution Accuracy -240 up to -50 °C 0.2 °C 0.60 °C -50 up to 0 °C 0.1 °C 0.10 °C 0 up to 1372 °C 0.05 °C 0.013 % of rdg. + 0.08 °C -240 up to -100 °C...
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Page 62: Temperature Simulation (Rtds)
The actually generated frequency is the value which is displayed in the uncertainty that is specified in this table. Temperature coefficient < 5 ppm / °C from 0 °C to 18 °C and from 28 °C to 50 °C. - 62 - © SIKA • Ba_MC75.2_en • 03/2017... -
Page 63: Additional Features At Simulation Mode
MC 75.2 Technical Specifications 4.2.7 Additional features at simulation mode Generation of increments The increment generation function is used to program an incremental progression of the ac- tive transmission function. Generation of ramps The ramp generation function is used to program a linear variation of the active transmission function. - Page 64 MC 75.2 Sensors and Measuring Instruments Flow Measuring Instruments Test and Calibration Instruments SIKA Dr. Siebert & Kühn GmbH & Co. KG Struthweg 7–9 D-34260 Kaufungen Germany +49 (0)5605 803-0 +49 (0)5605 803-54 info@sika.net www.sika.net - 64 -...
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