Omega COMPACT CAL CA100 Owner's Manual
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Omega COMPACT CAL CA100 Owner's Manual

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COMPACT CAL
M-2911
Free Datasheet http://www.datasheet-pdf.com/

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  • Page 1 COMPACT CAL M-2911 Free Datasheet http://www.datasheet-pdf.com/...
  • Page 2 • Every effort has been made in the preparation of this manual to ensure the accuracy of its contents. However, should you have any questions or find any errors, please contact your nearest representative. • Copying or reproduction of any or all of the contents of this manual without Omega's permission is strictly prohibited. Trademarks •...

  • Page 3: Conventions Used In This Manual

    Conventions Used in This Manual Type Symbol Meaning Cautionary note To avoid injury, death of personnel or damage to the instrument, the operator must refer to an explanation in the User's Manual. Calls attention to a procedure, practice or condition, which, if not correctly performed, adhered to, or maintained, could result in injury or death.
  • Page 4 Standard Accessories The following standard accessories are supplied with the instrument. Make sure that all items are present and undamaged. Note that the dry cell holder (B9914CV) comes preinstalled in the main unit. Carrying case Battery holder 8 Alkaline dry cells Fuse 2 Measurement leads User's Manual...

  • Page 5: Safety Precautions

    Safety Precautions Ths instrument is an IEC safety class I instrument (provided with a terminal for protective grounding). The following general safety precautions must be observed during all phases of operation, service and repair of this instrument. If this instrument is used in a manner not specified in this manual, the protection provided by the instrument may be impaired.
  • Page 6 Fuse To prevent a fire, be sure to use fuses with the specified ratings (voltage, current, type). Before replacing fuses, turn the power off and disconnect the power source if you are using an AC power supply kit. Do not short-circuit the fuse holder. Removing Covers There are some areas under high voltage.
  • Page 7 Safety Precautions for Using Ni-Cd Battery Storage • Please remove the Ni-Cd batteries from the main unit when storing. • Do not leave the batteries in a hot-temperature environment such as under direct sun light, inside an automobile, or near fire, because this leads to leakage of the alkaline electrolyte.

  • Page 8: Table Of Contents

    Contents Foreword Conventions Used in This Manual Checking the Contents of the Package Safety Precautions Components and Their Functions Block Diagram ............................9 Functions ..............................9 Front Panel .............................. 10 Side Panel ..............................12 Rear Panel ............................... 13 Before Starting Generation or Measurement Usage Precautions ...........................
  • Page 9 Specifications Generation Functions ..........................51 Measurement Function ..........................53 Generation Section ..........................54 Measurement Section ..........................54 24 V DC Supply Section ......................... 54 Communications Function ........................54 Common Specifications .......................... 54 External Dimensions ..........................55 Appendix Communication Commands ......................App-1 Status Byte Format (for <ESC>...

  • Page 10: Components And Their Functions

    Components and Their Functions Block Diagram Source/CPU part Power source/communication part OUT PUT Reference voltage source Ω RS-232-C Setting RS-232-C Excess voltage SOURCE driver protection Ω Current/voltage conversion DC/DC Excess current Current converter Memory Display detection protection Constant Measurement current source part Ω...

  • Page 11: Front Panel

    The following functions can be selected: Function Description Averaging Displays the results of moving averages of measured data. This is useful if the measured data are unstable or poor due to noise. (See page 21.) Display hold Halts updating of the displayed measured value. •...
  • Page 12 Output on and off key Turns output on and off. +/- key Toggles the polarity of the output value. NEXT ENTER key This switches the associated settings when setting the output values for the frequency and pulse signal. It also fixes the entered value when using the numeric keypad (refer to the following description).

  • Page 13: Side Panel

    Generation function indicator indicates the currently selected generation function. Each press of the FUNCTION key changes the function from DCV to DCA, Ω, TC, RTD, FRQ, and PULSE in order. Hold indicator This indicates the measured value is held. Output on and off indicator On: indicates the output is turned on.

  • Page 14: Rear Panel

    Terminal Side 24V OUT MEASURE SOURCE FUSE 22mA MAX 42V MAX R.J. INPUT 250V F 125mA 22mA ALL TERMINALS 42V 120mA MAX PEAK MAX TO GND. RJC sensor input connector This connects to an RJC sensor (optional). 24 V output terminal This supplies 24 V DC power.

  • Page 15: Before Starting Generation Or Measurement

    Before Starting Generation or Measurement Usage Precautions Safety Precautions • Before using this instrument, thoroughly read the "Safety Precautions" on pages 4 and • Do not remove the cover from the instrument. Some parts of the instrument use high voltage, which is extremely dangerous. When the instrument needs an internal inspection or calibration, contact your nearest representative.

  • Page 16: Installation Conditions

    Installation Conditions The instrument must be installed in a place where the following conditions are met. • Ambient temperature and humidity Ambient temperature: 5 to 40°C (5 to 30°C for charging during generation or measurement) Ambient humidity: 20 to 80% RH (no condensation) •...

  • Page 17: Installing Dry Cells

    Installing Dry Cells CAUTION When using dry cells, observe the following precautions: • The use of AA alkaline cells is recommended. • When inserting a battery, observe the polarity; otherwise, a liquid spill or explosion may occur. • Before operating the instrument, make sure that the dry cell holder is inserted into the body and the back cover is closed.

  • Page 18: Supplying Ac Power (Optional)

    • Do not use any AC power supply other than the power supply kit (model 366969) from Omega. Connecting the AC Power Supply Make sure that the instrument's power switch is turned off.

  • Page 19: Attaching And Charging Optional Ni-Cd Battery Pack

    • Before replacing the Ni-Cd battery pack, be sure to turn off the power switch on the front panel and remove the power cord from the AC outlet to avoid such possible hazards as short-circuiting in the battery-charging circuitry. • Use only an Ni-Cd battery pack from Omega. Free Datasheet http://www.datasheet-pdf.com/...
  • Page 20 It resumes charging of the battery pack if the power is restored within the given time. CAUTION • Use only the AC power supply kit (model: 366969) from Omega for charging. • When charging, keep the instrument horizontal. Make sure that there is no obstruction around the instrument, so that heat generated in the instrument is properly dissipated.

  • Page 21: Turning The Power Switch On And Off

    Charging the Battery Pack Supply the instrument with AC power via the method described above. Turn on the power switch. Press the [CHARGE] key. "CHARGE" is displayed. The instrument then momentarily shows the remaining time every minute. The battery pack is fully charged in about 10 hours, and "CHARGE END"...

  • Page 22: Averaging, Key Type, International Temperature, Temperature Unit Settings

    Note When backlighting the instrument, the internal power consumption increases, and the internal temperature rises. This may cause a degraded accuracy in generation or measurement compared with a normal condition. For accuracy, refer to the section, "Specifications," on page 51. Averaging, Key Type, International Temperature, Temperature Unit Settings Settings This instrument allows the setting of Averaging, Key Type, International Temperature,...
  • Page 23 11 Press the [ ] to display [Set uP] on the lower line of the display. 12 Press the [ ] or [ ] to display [End] and press the [NEXT ENTER] key. The measurement/generation screen is returned. Free Datasheet http://www.datasheet-pdf.com/...

  • Page 24: Generation

    Generation Connecting the Output Terminal Insert the plug of the measurement lead into the output terminal of the instrument. Pinch the terminals on the target device with the clips on the other side of the lead. SOURCE Target device Clip Measurement lead Black Wiring generating resistance or RTD (3-line or 4-line wiring)

  • Page 25: Dc Voltage, Dc Current, Resistance

    DC Voltage, DC Current, Resistance The output terminal generates voltage, current or resistance at the specified value. Press the [FUNCTION] key on the SOURCE side to align with the [DCV], [DCA], or [Ω] that you want. Press the [RANGE] key on the SOURCE side to select the generation range. Type Generation Range Display Setting Range...
  • Page 26 Note • When outputting, if you change the generation function, generation range, or polarity (only for current generation), output turns off automatically. • The resistance generation of this instrument employs an "active impedance" scheme in order to provide a dummy resistance. This scheme generates a DC voltage appropriate for the current being measured that is supplied by a resistance meter such as a multimeter.

  • Page 27: Thermocouple, Resistance Temperature Detector

    (99020) SOURCE Input source: (DC mA) CA100 Equipment such as a MEASURE converter (DC mA) R: 200 Ω ±10%, 1/4 W C: 1 µF ±10%, 50 V (Equivalent to the 533M5002105K resistor from Matsuo Electric) Note however that this additional circuitry reevaluates the CA100’s response specification as noted below.
  • Page 28 Note • When outputting, if you change the generation function or generation range, output turns off automatically. • The generation of RTD-use signals in this instrument employs an "active impedance" scheme in order to provide a dummy resistance. This scheme generates a DC voltage appropriate for the current being measured that is supplied by a resistance meter such as a multimeter.

  • Page 29: Frequency, Pulse Signal

    • Compensating the output voltage using the temperature detected with the RJC sensor is executed on a sampling rate of approximately 10-second intervals. It means that there is a delay of up to 10 seconds before the first compensation starts. •...
  • Page 30 Specify the voltage frequency to generate. • Using [ ] or [ ] Press [ ] or [ ] to specify the voltage frequency to generate from the rightmost digit. To reset the value to zero, press [ZERO CLR]. • Using the numeric keypad Enter a voltage frequency to generate using the numeric keypad and the decimal point key (if applicable), and press the [NEXT ENTER] key.

  • Page 31: Measurement

    Measurement Connecting the Input Terminal Connection Precautions WARNING • To prevent electrical shock, a protective grounding connection must be made before connecting the measurement lead. • Always turn off the power supply to the object being measured before connecting it to the instrument. Never connect or disconnect the measurement lead wires from the object while power is being supplied to it;...

  • Page 32: Measuring The Dc Voltage, Dc Current, And Resistance

    For measuring DC current MEASURE FUSE 42V MAX 250V F 125mA Measured object 120mA MAX Measuring the DC Voltage, DC Current, and Resistance Press the [MEASURE ON] key. Press the [FUNCTION] key on the MEASURE side to align with the [DCV], [DCA], or [Ω] that you want.

  • Page 33: 24 V Dc Power Supply

    24 V DC Power Supply Connecting the Output Terminal Connection Precautions WARNING The permitted maximum potential difference is 42 Vpeak and Cat II for every I/O and earth terminal. However, the permitted maximum potential difference between the negative 24 V OUT terminal and the ground is 18 Vpeak.

  • Page 34: Using The Rs-232-C Interface

    Using the RS-232-C Interface RS-232-C Interface Functions Reception Function Allows you to make the same settings (except for on and off of the power supply and those related to communication) as those which can be made using the keys on the front panel.

  • Page 35: Connecting The Rs-232-C Interface Cable

    Connecting the RS-232-C Interface Cable When connecting this instrument to a personal computer, make sure that the handshaking, transmission rate and data format selected for the instrument match those selected for the computer. For details, refer to the following pages. Use an interface cable that is shielded and meets the instrument's specifications requirements.

  • Page 36: Settings For Communication

    RS-232-C Standard Signals and their JIS and CCITT Abbreviations RS-232-C Standard Signals Signals Pin No. Abbreviation Name Pin 9 connector Pin 25 connector RS-232-C CCITT Ground for signal AB (GND) Send data BA (TXD) Received data BB (RXD) Request to send CA (RTS) Clear to send CB (CTS)
  • Page 37 Communications modes The following communications modes are available. If the instrument continues providing output for more than two to three hours, it will start delivering signals at an interval approximately one second longer than the preset interval because of the characteristics of the internal clock. Communication mode Description Normal mode (nor)
  • Page 38 256 bytes When handshaking is in use, reception of data will stop when the free space in the buffer drops to 64 bytes since data cannot be passed to the main program fast Used Free, 64 bytes enough to keep up with transmission. After the reception of data stops, data continue to be passed to the internal program.
  • Page 39 Setting 1 Press the [NEXT ENTER] key with the [ZERO CLR] key pressed. [SP FC] and [End] are displayed. 2 Press [ ] or [ ] until [End] on the lower line of the display changes to [Com], and then press the [NEXT ENTER] key. The communication menu appears.

  • Page 40: Before Programming

    Before Programming Before Programming Format The following shows the structure of program data. Command + Parameter + Terminator ASCII codes are used. Example CRLF Command Parameter Terminator Command Predefined string of 1 to 3 capital letters Parameter Numeric values or character string (ASCII code) Terminator Either "CR + LF,"...

  • Page 41: Troubleshooting

    Troubleshooting Items to be Checked in the Case of an Abnormality If the instrument does not operate properly even if the actions given in the table below are performed, if "Servicing required" appears as a corrective action, or if there are any other problems, contact your nearest representative.

  • Page 42: Maintenance

    Maintenance Calibration To maintain high accuracy, the instrument should be calibrated once every year. Calibration services are also available from your nearest representative. The following example of calibration using the standard equipment recommended in the section "Selecting the Standards" is described. Selecting the Standards Generation Function Item to be...
  • Page 43 Check Before Calibrating the Resistance Generation Function Generate the one of the appropriate resistance values listed in the following table from the instrument, and measure the output voltage using a DMM. If the measured value deviates from the tolerance, calibration is unavailable when generating resistance. Contact your nearest representative.
  • Page 44 Resistance DANGER-HIGH VOLTAGE Guard Apply Calibrated instrument DCA. MEASURE SOURCE ΩGuard Guard FUSE 42V MAX 250V F 125mA 22mA ALL TERMINALS 42V 120mA MAX PEAK MAX TO GND. Measure DCV. Procedure 1 Before turning on the instrument, connect it and the standard equipment. 2 Warm up the instrument and standard equipment.
  • Page 45 Maintenance 10 Press the [HOLD] key to write the calibrated value to the EEPROM of the instrument. Perform this operation for each range. 11 Repeat steps 6 to 10 for each range. Returning to the Measurement/Generation screen 12 Press [ ] to display [SP FC]. Press [ ] or [ ] until [End] appears on the lower line of the display.
  • Page 46 4 Press [ ] or [ ] until "End" on the lower line changes to "mEAS." 5 Press [NEXT ENTER] to display the calibration screen for measurement. 6 Select one of the measurement functions (DCV, DCA, Ω) using the [FUNCTION] key and press [RANGE] to select the range to calibrate.
  • Page 47 Recommended Value for Calibration Ranges and Points Calibrating the Generation The values of "FS" or "0" ("-FS," or "-0") vary depending on the object to measure. Send the appropriate value listed in the following table from the instrument to the standard equipment, and enter the value measured using the standard equipment into the instrument.
  • Page 48 Commands for Calibration The following communications commands are available for calibration. Before executing these commands, see the descriptions on pages 41 to 46. Calibration for measurement: Resistance Turns the averaging function on and off/queries the m=0:+FS current setting. Syntax for setting AGm <terminator> 2:-FS m=0: Averaging is off.
  • Page 49 Writes the calibration data. Outputs measured data. Syntax for setting CW <terminator> Syntax for query OD <terminator> Description • The result of calculation is Description For the output format of the written to the EEPROM after measured data, see page App-5. completing calibration.
  • Page 50 Switches between the normal and calibration modes/ queries the current setting. Syntax for setting SYm <terminator> m=0: Normal mode 1: Calibration mode Syntax of query SY? <terminator> Example of response Description • If a communications command for the normal mode is received during the calibration mode, error 13 occurs.

  • Page 51: Replacing The Ni-Cd Batteries

    Replacing the Ni-Cd Batteries The service life of Ni-Cd batteries is reduced if they are used repeatedly, even if they are completely charged. The interval between battery replacement differs depending on the operating conditions, but you should replace them approximately every two years or after recharging them 500 times.

  • Page 52: Specifications

    Specifications The accuracy specifications vary depending on usage. The following specifications indicate the accuracy at an ambient temperature of 23°C ± 5°C, after performing auto- calibration, and are applicable for one year after calibration. They do not include measuring lead parts. The conditions for the temperature factors are 5°C or more but less than 18°C, and more than 28°C up to 40°C.
  • Page 53 Thermocouple Range (* Displaying 1000.0°C 1000.0°C 1000.0°C 100.0°C 1000.0°C 1000°C 1000°C Resolution Generating –200 to 1372°C –250 to 1000°C –210 to 1200°C –250 to 400°C –200 to 1300°C –40 to 1767°C 400 to 1820°C Range Guaranteed Same as the generating range Accuracy Range Accuracy (* With EL...

  • Page 54: Measurement Function

    Frequency, Pulse Signal Range 100 Hz 1000 Hz 10 kHz 50 kHz Displaying Resolution 100.0 Hz 1000 Hz 10.0 kHz 50 kHz Generating Range 1 to 110 Hz 90 to 1100 Hz 0.9 to 11.0 kHz 9 to 50 kHz Guaranteed Accuracy Range 1 to 100 Hz 100 to 1000 Hz...

  • Page 55: Generation Section

    Generation Section Response Time 10 ms 1 V DC, 10 V DC ranges: The time necessary for the output to be settled within the accuracy range from when it started to vary. 10 ms 500 Ω range: The time necessary for the output to be settled within the accuracy from when the regulated current was fed.

  • Page 56: External Dimensions

    Power Supply AC adapter, Ni-Cd battery pack, or commercially available AA alkaline cells; the Ni-Cd battery pack can be recharged only within the instrument. Charging the battery pack Timer charging by the instrument (approximately 10 hours) AC adapter (optional) Input: 100 to 240 V AC, 50/60 Hz, 40 to 55 VA Permitted Input Voltage Range: 90 to 264 V AC Permitted Input Frequency Range: 48 to 62 Hz Ni-Cd Battery Pack (optional)

  • Page 57: Appendix

    Appendix Communication Commands • International temperature standard • Temperature unit Makes the current function setting/queries the current setting. ESC S Syntax for setting ASm <terminator> Outputs a status byte. m=0: Source Syntax for setting ESC S <terminator> 1: SINK Description •...
  • Page 58 Makes the status byte mask setting/queries the current Outputs measured data. setting. Syntax for query OD <terminator> Syntax for setting IMm <terminator> Description For the output format of the m=0 to 63 measured data, see page App-5. 1: Measurement end 2: Output change end Outputs error information.
  • Page 59 Sets generated value/queries the current setting. Starts/Stops generation/queries the current setting. Syntax for setting SDm <terminator> Syntax for setting SOm <terminator> m=0: Generation stop (100 mV) m = -10.000 to 1: Generation start 110.000 Syntax for query SO? <terminator> (1 V) m = -0.10000 to 1.10000 Example of response (10 V) m = -1.0000 to 11.0000 Sets the generation range/queries the current setting.
  • Page 60 Start/Stop the 24 V DC power supply/queries the current setting. Syntax for setting VOm <terminator> m=1: Stops supply 0: Starts supply Syntax for query VO? <terminator> Example of response App-4 Free Datasheet http://www.datasheet-pdf.com/...

  • Page 61: Status Byte Format (For Command)

    Status Byte Format (for <ESC> command) bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 Output Loop power Overrange Syntax Output Measure- (Fixed) (Fixed) error supply error error error change ment end bit 7: Fixed to 0 bit 6: Fixed to 1 bit 5: This is set to 1 if an error occurs during output.

  • Page 62: Output Format For Talk-Only Or Printer Mode

    Data section The data section consists of 10 bytes (d1 to d10). d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d1 to d7: Floating-point, fixed-point part d8 to d10: Floating-point characteristic If the unit has no "k" or "m," it is represented as "E+0." If the unit has a "k"...

  • Page 63: Sample Program

    Sample Program '******************************************************************* CA100 COMAPCT CAL (RS-232-C) Output 50 mV in DCV 100 mV range '******************************************************************* OPEN "COM1:9600,N,8,1,CS0,DS0,LF" FOR RANDOM AS 1 'Set communication mode PRINT #1, "RC" 'Initialize settings PRINT #1, "SF0" 'Set to DCV function PRINT #1, "SR0" 'Set to 100 mV range PRINT #1, "SD50.000"...
  • Page 64 GOTO LOOP1 MEASEND: FOR Y = 0 TO MCOUNT / 4 - 1 YPOS = CSRLIN FOR X = 0 TO 3 XPOS = X * 20 + 1 LOCATE YPOS, XPOS PRINT RDATA$(X + Y * 4) + "(" + STR$(X + Y * 4) + ")": 'Display measurement result IF YPOS = 24 THEN YPOS = YPOS - 1 NEXT X NEXT Y...
  • Page 65 Index 24 V DC output terminal ............13 Pulse signal ................. 28 24 V DC power supply ............. 32 Resistance ................24 Resistance temperature detector (RTD) ......25 Thermocouple (TC) ............25 Page AC adapter .................. 3 Page Connection ................17 Accessories (optional) ..............
  • Page 66 Index Page Reference Junction Compensation ........... 27 RJC sensor ................27 RS-232-C interface ..............33 Baud rate ................37 Commands .............. 47, App-1 Communications modes ............. 36 Connector ..............12, 34 Data format ................. 37 Handshaking ............... 36 Terminator ................37 Page Sample program ..............

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