User`s Manual
Contents
1. CA12E HANDY CAL Temperature Calibrator Ai User s Manual Thank you for purchasing the CA12E HANDY CAL Prior to using read this User s Manual carefully to fully and properly utilize all of the features of this instrument Also refer as needed to IM CA12E 02E an additional Users Manual for this instrument YOKOGAWA Yokogawa Meters amp Instruments Corporation IM CA12E 01E 2nd Edition Nov 2006 KP 1 Safety Precautions When operating the instrument strictly observe the precautions below to ensure its correct and safe operation If used other than as instructed in this manual Yokogawa Meters amp Instruments Corporation is not liable for any damage that may result E The following safety symbols are used on the instrument and in the manual AN Danger Handle with care This symbol indicates that the operator must refer to an explanation in the User s Manual in A order to avoid risk of injury or death of personnel or damage to the instrument Indicates a hazard that may result in the loss of life or serious injury of the user unless the AN described instruction is abided by CAUTION Indicates a hazard that may result in an injury to the user and or physical damage to the product or other equipment unless the described instruction is abided by AN NOTE Indicates information that is essential for handling the instrument or should be noted in order to familiarize yourself with the instrument s operating procedures and or2. When selecting the range of the PT100 JPT100 use DIP switch 3 to select the temperature scale standard OFF ITS90 ON IPTS68 68 appears in the Sub Seven Segment JPT100 is of the IPTS68 standard so its temperature scale cannot be set using DIP switch 3 For RTD generation and measurement the SHIFT key can be used to switch between the PT100 and the JPT100 7 4 Disabling Automatic Power Off According to the factory setting of the instrument it automatically turns itself off if not operated for about 10 minutes By setting DIP switch 4 to ON this function can be disabled However when the instrument is battery driven it is generally recommended that this switch be set to OFF in order to prevent the batteries from being exhausted IM CA12E 01E lt 2 gt
3. functions E Damage to the instrument personal injury or even death may result from electrical shock or other factors To avoid this follow the precautions below A E Use where gases may be present Do not operate the instrument in a location where flammable or explosive gas vapor present It is extremely hazardous to operate the instrument in such an atmosphere External connection If necessary to touch a circuit to make an external connection turn off the power to that circuit ensure there is no voltage then perform the connection When replacing the batteries disconnect the lead cables in advance Disassembly Do not disassemble or remodel the instrument yourself This needs to be done by our service personnel 2 Names and Functions of Parts Rear View Front View Side View with the rear cover removed lt 10 gt AC Adapter fanaa lt 12 gt DIP connection jack we Come S switches lt 1 gt Display unit a EE lt 11 gt RJ sensor E eS e lt 1 3 gt Battery lt 3 gt POWER input connector come holder key lt 2 gt Output value Owe ea lt 4 gt SHIFT setting keys key lt 5 gt Range selection rotary switch lt 6 gt MEASURE measurement SOURCE generation selection switch amp y A lt 7 gt Voltage resistance input and output terminals Red J lt 14 gt Lead cables lt 8 gt T
4. the cables to the input terminals of the device under generation a Voltage Thermocouple b 1 3W Resistance RTD OUTPUT b 2 3W Resistance RTD OUTPUT 3W 3W Lo Hi Lo Lo O lt 1 gt Short bar Supplied orma O erma S a 2W Resistance RTD OUTPUT 3W Lo Lo Hi Lo Hi 3W Lo Hi 3W Lo Hi Lo Lo e When calibrating a resistance temperature detector or a resistance measurement unit in a three wire connection configuration the supplied terminal adapter can be used to achieve a three wire connection configuration without shorting the Lo terminal Fig b 1 Lo and 3W Lo terminals can be shorted Fig b 2 Otherwise connect as shown in Fig a IM CA12E 01E lt 1 gt N CAUTION Do not apply any voltage to the output terminals during signal generation If voltage is applied by mistake the internal circuit may be damaged AY NOTE As the instrument is calibrated without the voltage drop of the lead cables error due to the resistance of the lead cables approximately 0 1 Q for go and return must be considered for load current measurement 5 2 Generating DC Voltage The instrument generates voltage at a specified value through the output terminals E Normal setting lt 1 gt Switch the MEASURE SOURCE selection switch to SOURCE generation This causes the display unit to show SOURCE and ON lt 2 gt Select the range to be generated using the range selection rotary switch The di
5. OREA Phone 82 2 551 0660 to 0664 Facsimile 82 2 551 0665 YOKOGAWA AUSTRALIA PTY LTD AUSTRALIA Phone 61 2 9805 0699 Facsimile 61 2 9888 1844 YOKOGAWA INDIA LTD INDIA Phone 91 80 4158 6000 Facsimile 91 80 2852 1441 YOKOGAWA SHANGHAI TRADING CO LTD CHINA Phone 86 21 6880 8107 Facsimile 86 21 6880 4987 YOKOGAWA MIDDLE EAST E C BAHRAIN Phone 973 358100 Facsimile 973 336100 LTD YOKOGAWA ELECTRIC RUSSIAN FEDERATION Phone 7 095 737 7868 Facsimile 7 095 737 7869 IM3E 2006 2 E Notice regarding the Manual lt 1 gt The information contained in this User s Manual is subject to change without notice lt 2 gt Every effort has been made to ensure that the information contained herein is accurate However should any concerns errors or omissions come to your attention or if you have any comments please contact us lt 6 gt MEASURE measurement SOURCE generation selection switch Selects MEASURE measurement or SOURCE generation lt 7 gt Input output terminals Used for MEASURE measurement and SOURCE generation in each range lt 8 gt 3W input terminal Used for MEASURE measurement in a three wire connection configuration in the resistance or RTD range lt 9 gt Terminal adapter Attached to the instrument s terminals when measuring a thermocouple signal or when lead wires are to be connected directly to the terminals lt 10 gt AC Adapter connection jack Used to connect an AC adapter option
6. al lt 11 gt RJ sensor input connector When using an external RJ sensor optional connect it to this connector lt 12 gt DIP switches See Section 7 Other Features lt 13 gt Battery holder Contains four AA size batteries See Section 3 Replacing Batteries lt 14 gt Lead cables for measurement or generation Used to connect the instrument to the device under measurement generation 3 Replacing Batteries When the mark is blinking on the display unit the batteries are exhausted Replace them according to the following procedure lt 1 gt Check that the power is turned off disconnect the lead cables lt 2 gt Slide off the cover at the back of the instrument lt 3 gt Replace all four batteries with new ones Insert them according to the polarity directions shown inside the holder lt 4 gt After replacing the batteries return the cover to the original position E Connecting the AC Power optional Before connecting the AC power Strictly observe the following warnings to avoid electrical shock or damage to the instrument EGS Do not use any AC adapter other than the dedicated AC adapter A1020UP A1022UP B9108WB from Yokogawa Before connecting the power cord check that the supply voltage matches the rated voltage of the instrument Before connecting the power cord check that the instrument s power key is OFF Connection procedure lt 1 gt Check that the POWER key of the instrument i
7. hout taking the resistance value of the lead cables into consideration Resistance value is increased by approximately 0 1 Q at the lead cable ends f capacitance between the terminals of the resistance measuring device under calibration becomes 0 1 uF or more the CA12E may not be able to generate the correct resistance value 5 4 Generating a Thermocouple TC Signal The instrument generates thermo electromotive force from the output terminals corresponding to the specified thermocouple TC temperature lt Selecting and switching thermocouple gt Use the range selection rotary switch to select the type of thermocouple TC from J U T L N B and R S Use the SHIFT key to switch among U L B and S The selected type is shown in the Sub Seven Segment lt External RJ sensor and reference junction compensation gt When a thermocouple excluding B type signal is generated and you directly calibrate a thermometer with a built in reference junction compensation function without an external 0 C reference junction compensation means use an RJ sensor optional as follows The built in RJ sensor can also be used to carry out calibration see Section 7 Other Features lt 1 gt Connect the RJ sensor to the RJ sensor input connector of the instrument Insert the sensor so that the tab at the bottom of the connector is locked in To release the connector gently press the locking tab downward to unlock the connector then remove it l
8. hree wire input terminal E lt 9 gt Terminal adapter Black Too Black J ie jk h lt 1 gt Display unit a MEASURE Lights up when MEASURE measurement is selected using the selection switch lt 6 gt b SOURCE Lights up when SOURCE generation is selected using the selection switch lt 6 gt c CAL Lights up in the calibration mode d O FS Lights up or blinks when offset or full scale adjustment is performed in the calibration mode e This mark indicates the battery s status When lit it indicates the batteries will soon need replacing When blinking it indicates that they must be replaced see Section 3 Replacing Batteries f Main Seven Segment Displays a measured value or an output value g Sub Seven Segment lt PT100 range gt When IPTS68 is selected by DIP switch 3 68 is displayed lt Thermocouple range gt When the U L B or S range is selected using the SHIFT key the type of thermocouple is displayed lt Calibration mode gt This mode displays the lower two digits of the measured or generated value h Displays the unit of the range selected i ON It lights up when the output is turned on in SOURCE mode signal generation j RJ ON It lights up when the reference junction compensation is being calculated in SOURCE mode signal generation k JPt100 It lights up when the JPt100 standard is selected in the RTD range Pt100 range Refer to Section 7 Other Features lt 2 gt Output value setti
9. ion switch to MEASURE measurement MEASURE lights up on the display unit lt 2 gt Select the thermocouple J U T L N B or R S to be measured using the range selection rotary switch Use the SHIFT key to switch among U L B and S e The display unit shows the results of the corresponding temperature on which the internal RJ sensor measured temperature compensation was based e If the input terminals are open the display unit shows bo burnout e If the measurement data is out of range or not measurable the display unit shows If the temperature in the operating environment of the instrument changes rapidly wait until RJ compensation stabilizes and then use the instrument 7 Other Features The following features are available depending on the settings of the DIP switches above the battery holder which can be accessed by removing the cover from the back of the instrument DIP switches 1 Reference junction compensation by the internal RJ sensor 2 Temperature 3 Setting of thermocouple standard OFF ITS90 ON IPTS68 4 Disable automatic power off 7 1 Reference Junction Compensation by the Internal RJ Sensor When generating a thermocouple signal setting DIP switch 1 to ON enables the instrument s internal RJ sensor to output a temperature compensated thermo electromotive force 7 2 Temperature Check that the DIP switch 2 should be placed in the OFF position 7 3 Selecting Thermocouple Standard
10. level may not only damage the instrument but also cause injury to personnel Never attempt to apply such voltage N CAUTION Do not apply any voltage to the input terminals that is above the measurement range This may damage the instrument 6 1 Connecting Procedure lt 1 gt When connecting a thermocouple or the lead wires they must be attached to the terminal adapter supplied with the instrument lt 2 gt For measurements of the voltage the resistance or RTD in a two wire connection configura tion connect the supplied lead cables to the terminals of the instrument or the lead wires to the terminal adapter see following Figure a For measurements of the resistance or RTD in a three wire connection configuration connect the lead wires to the terminal adapter or to the terminals of the instrument see following Figure b e Be sure to remove the short bar Supplied from the terminal adapter supplied e For measurements of the resistance or the RTD in a two wire connection configuration do not leave the lead wires connected to the 3W Lo terminal lt 3 gt Connect the clips on the other cable ends to the device under measurement e For accurate measurement of the resistance or the RTD make sure that the leading ends of the lead wires do not touch anything other than the device under measurement a Connection of the input terminals for measuring voltage b Connection of the input terminals for measuring the resis
11. ng keys Sets an output value for SOURCE mode signal generation The A W keys are provided under each digit whose value is increased or decreased in increments of 1 Carry of the digit is applied to increasing the value pressing the A key when it is 9 Borrow of the digit is applied to decreas ing the value pressing the W key when it is 0 lt 3 gt POWER key Turns on off the power supply For more information see Section 4 Turning the Power On Off lt 4 gt SHIFT key Selects the type of thermocouple or the resistance temperature detector being selected by the range selection rotary switch e g thermocouple type S gt R lt 5 gt Range selection rotary switch Selects a range for SOURCE mode signal generation or MEASURE mode measurement YOKOGAWA Yokogawa Meters amp Instruments Corporation Yokogawa Meters amp Instruments Corporation International Sales Dept Tachihi Bld No 2 6 1 3 Sakaecho Tachikawa shi Tokyo 190 8586 Japan Phone 81 42 534 1413 Facsimile 81 42 534 1426 YOKOGAWA CORPORATION OF AMERICA U S A Phone 1 770 253 7000 Facsimile 1 770 251 2088 YOKOGAWA EUROPE B V THE NETHERLANDS Phone 31 334 64 1611 Facsimile 31 334 64 1610 YOKOGAWA ENGINEERING ASIA PTE LTD SINGAPORE Phone 65 6241 9933 Facsimile 65 6241 2606 YOKOGAWA AMERICA DO SUL S A BRAZIL Phone 55 11 5681 2400 Facsimile 55 11 5681 1274 YOKOGAWA MEASURING INSTRUMENTS KOREA CORPORATION K
12. s off lt 2 gt Connect the AC adapter optional to the instrument s AC adapter connection jack Note that unless the AC adapter is connected to the power outlet the power cannot be turned on 4 Turning the Power On Off E Operating the POWER Key When the instrument s power is off pressing and holding the POWER key for more than 1 second causes the power to be turned on Pressing the key again causes it to be turned off When the power is turned on the instrument starts a self test and displays CA12E Then the features selected using the range selection rotary switch and the MEASURE SOURCE selection switch start functioning e For battery driven operations disconnect the AC adapter from the instrument E Automatic Power Off In the factory setting all indications start blinking if the instrument has not been operated for about 9 5 minutes Then if the instrument is not operated for another 30 seconds it automatically turns off To disable this automatic power off feature see Section 7 Other Features If you wish to keep the instrument turned on after the indications start blinking press the POWER key or any other key This causes the blinking to return to normal lighting without changing the previous settings 5 SOURCE generation 5 1 Connecting the Output Terminals lt 1 gt Insert the plugs of the supplied lead cables into the output terminals of the instrument lt 2 gt Connect the clips on the other ends of
13. splay unit shows an initial value and unit for each range lt 3 gt Press the A W keys under each digit to set an output value 5 3 Generating Resistance or RTD Signal The output terminals of the instrument generate resistance with a value that corresponds to the specified resistance value or the RTD temperature lt Switching between PT100 and JPT100 gt Use the range selection rotary switch to select the PT100 JPT100 range When the PT100 range is selected press the SHIFT key to switch to the JPT100 range JPT100 is displayed Press the SHIFT key again to return to the PT100 range For the ITS90 and IPTS68 range settings see Subsection 7 2 Selecting Thermocouple Stan dard AY NOTE The method of simulating resistance output is by generating voltage according to the excitation current I received from the device under calibration due to the equation R required resistance V generated voltage I current received from device The device to be calibrated must have the excitation current for resistance measurement The standard range of resistance measuring current that the CA12E must receive from the resistance measuring device under calibration is between 0 5 mA and 2 mA When the current is above 2 mA accurate resistance generation is not possible When it is below 0 5 mA the margin of error increases For more information see Section 9 Specifications The generated resistance value is calibrated wit
14. t 2 gt When the sensor is connected the instrument displays RJ ON and outputs a thermo electromotive force based on the temperature detected by the RJ sensor e The thermo electromotive force is obtained by subtracting the value detected by the RJ sensor from the calculated thermo electromotive force without the RJ sensor e Compensation of output voltage according to the temperature detected by the RJ sensor is achieved by a sampling approximately every 4 seconds Thus there is a maximum delay of 4 seconds between the connection of the connector and the start of compensation e For accurate compensation an interval must lapse after connecting the RJ sensor to allow for temperature stabilization AY NOTE Be sure to remove the RJ sensor from the connector of the instrument when reference junction compensation is not necessary Measurement A G When connecting the device under measurement turn off the power of the device Connecting disconnecting the lead cables for measurement without turning off the power of the device under measurement may be extremely dangerous Special care should be taken to avoid connecting a current circuit to the input terminals Inadvertent connection may not only cause damage to the circuit or device under mea surement and the instrument but may also be dangerous to personnel The maximum allowable voltage between all input output terminals and ground is 42 V Any voltage exceeding this
15. tance a thermocouple signal the resistance in a two wire in a three wire connection configuration and an RTD signal in a connection configuration or an RTD signal in a two wire three wire connection configuration connection configuration 3W 3W L 066 7 COC Lo Hi Terminal adapter 7 6 2 Measuring DC Voltage lt 1 gt Switch the MEASURE SOURCE selection switch to MEASURE measurement MEASURE lights up on the display unit lt 2 gt Select the range to be measured 100 mV using the range selection rotary switch The measured value is displayed e If measured data is out of range or not measurable the display unit shows 6 3 Measuring Resistance or RTD Signal lt 1 gt Switch the MEASURE SOURCE selection switch to MEASURE measurement MEASURE lights up on the display unit lt 2 gt Select the range to be measured using the range selection rotary switch The measured value is displayed e If measured data is out of range or not measurable the display unit shows lt Measuring RTD gt Use the range selection rotary switch to select the PT100 JPT100 range When the PT100 range is selected press the SHIFT key to switch to the JPT100 range JPT100 is displayed Press the SHIFT key again to return to the PT100 range For the ITS90 and IPTS68 range settings see Subsection 7 2 Selecting Thermocouple Stan dard 6 4 Measuring Thermocouple lt 1 gt Switch the MEASURE SOURCE select
Download Pdf Manuals
Related Search