User`s Manual
Contents
1. FS and shows a full scale of the range lt 7 gt Read the output value of the CA12E using the standard digital multimeter and using the A and V adjustment keys adjust the CA12E so that the output value is set to the full scale value Then press and hold the V1 input determination ENTER key for about 1 second to fix the setting After fixing the setting the display unit shows O FS blinking Re press and hold the W1 input determination ENTER key for about 1 second to write the calibration coefficients to the EEPROM of the instrument This overwrites the previous calibration coefficients When this is complete the instrument returns to the status in Step 5 lt 8 gt Repeat Steps 5 to 7 for each range to be calibrated To return to the previous step lt 9 gt To return to the previous step without fixing the setting press the A1 input cancellation key Note that this is possible only before writing to the EEPROM To return to the normal operation mode lt 10 gt Simultaneously press and hold the A1 and W4 keys shown in the figure in the Assign ment of Keys for Calibration section below for about 2 seconds or press the POWER key to turn off the power once and then press it again to turn it back on Calibration Precautions lt 1 gt Calibration for 400 Q generation e Set resistance measuring current to 1 mA Check the specifications of the digital multimeter DMM to be used as the standard2. CA12E HANDY CAL Temperature Calibrator 2 User s Manual In addition to this User s Manual there is another manual for the instrument IM CA12E 01E which provides instructions for its safe use and explains its functions Refer to it as needed YOKOGAWA Yokogawa Meters amp Instruments Corporation IM CA12E 02E 2nd Edition Nov 2006 KP 8 Calibration Procedure E Calibration Procedure To maintain a high level of accuracy it is recommended that the CA11E HANDY CAL be calibrated annually The Selecting the Standards section below presents calibration methods using the recommended standards E Selecting the Standards Source feature Items to be Names of Measuring Model 7561 Digital multimeter 100 mV Max 110 mV 0 005 5 uV Yokogawa or equivalent Max 440 0 Model 7561 Q Digital multimeter 400 Q Measuring 0 005 0 02 Q Yokogawa current 1 mA or equivalent Measurement feature Items to be Names of Generated ee 2552 heen 100 mV 100 mV 0 01 Yokogawa ge g or equivalent Decade resistance Model 279301 Ox 400 Q 400 Q 0 01 Yokogawa or equivalent E Environmental Conditions for Calibration Ambient temperature 23 1 C Relative humidity 45 to 75 R H Warm up Warm up time as specified for the standard E Calibration Points e The calibration points are as specified in the following tables e It is possible to independently select the necessary range to be recalibrated e Alw
3. Example Resistance measuring current is 1 mA for the 2000 Qrange of Model 7561 Yokogawa e Connection method Connect the CA12E calibrator to the standard in a four wire connection configuration for calibration as shown below 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 KOREA 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
4. 1 gt The information contained in this Instruction 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 DMM 2000 Q range Standard lt 2 gt Calibration for 400 Q measurement e Connection method Connect the CA12E calibrator to the standard in a three wire connection configuration for calibration as shown below Decade resistance box 400 Q Standard lt 3 gt Calibration for internal RJ compensation Because this calibration requires special equipment a K type thermocouple and 0 C reference temperature chamber contact the sales agent or office where the instrument was purchased or our office E Assignment of Keys for Calibration When the CA12E calibrator is in the calibration mode keys are assigned as specified here Input cancellation key OUTPUT Input determination ENTER key Mode switching calibration or normal Press and hold two keys simultaneously for 2 seconds Adjustment keys six keys E Digit to be adjusted by the A4 V4 adjustment keys ee E Calibrating the Measurement Feature Operation procedure lt 1 gt Warm up the standard lt 2 gt Before turning on the power of the CA12E calibrator connect it to the standard Be sur
5. The fastener on the logo side cannot be undone E Rubber boot 93038 E Anti skid pad Anti skid pad Supplied The optional rubber boot provides shock protection and can be used with a strap Note When using the instrument with a rubber boot the anti skid pad at the bottom is not needed When used without a rubber boot in a leaning position the supplied anti skid pad should be used E Specifications of the External RJ Sensor 3 Model B9108WA Accuracy when combined with the instrument 10 to 50 C 18 28 C 205 C Other ranges 1 C Cord length Approximately 1 5 m Compensation using the built in sensor is also possible by adjusting the setting of the internal DIP switch on the instrument IM CA12E 02E lt 2 gt
6. H no condensation Storage temperature and humidity range 20 to 50 C 90 R H or less no condensation Dimension Approximately 192 H x 92 W x 42 D mm excluding protrusions Weight Approximately 440 g Accessories Lead cables B9108MT for measurement and generation one set consisting of two black cables and one red cable Terminal adapter B9108KF 2 manuals Dedicated AC adapter A1020UP AC100 V A1022UP AC120 V B9108WB AC 220 240 V Carrying case B9108Nk Rubber boot 93038 Strap 97040 Accessory case B9108XA RJ sensor reference junction compensation B9108WA EN61010 1 only AC adapter B9108WB A1020UP and A1022UP are excluded EN61326 ClassB EN55011 ClassB Group EN61000 3 2 EN61000 3 3 EN61326 Performance criterion under immunity test environments B self returnable performance deterioration Test conditions of EMC and Immunity standards AC adapter B9108WB Lead cables B9108MT and RJ sensor B9108WA are used Optional accessories Safety standards EMC standards Immunity 10 How to Use the Carrying Case and Rubber Boot E Carrying case B9108NK The carrying case B9108NK may be used as follows 1 Undo the fasteners on the top and sides of the case cover to open it 2 With the fastener on the logo side of the case centered lift the cover and pivot it to the side and under the case itself 3 Re do the fasteners at the top and sides of the cover Note
7. ays calibrate the zero 0 point and full scale FS as a pair for generation Source Measurement Calibration points Standard Value Calibration points Standard Value o fow Cd Pe 100 mV FS 100 mV w fe how 400 0 400 0 2 Set the value to the standard as specified in 1 Make adjustments to CA12E according to the reading of the standard CA12E output value as specified in the table E Calibrating the Generation Feature Operation procedure lt 1 gt Warm up the standard lt 2 gt Before turning on the power of the CA12E calibrator connect it to the standard Be sure to remove the external RJ sensor lt 3 gt Turn on the power of the instrument lt 4 gt Simultaneously press and hold the A1 and V4 keys shown in the figure in the Assign ment of Keys for Calibration section below for about 2 seconds to enter the calibration mode lt 5 gt Select the generation range to calibrate using the MEASURE SOURCE selection switch and range selection rotary switch The display unit shows CAL SOURCE ON 0 and the lower limit lt 6 gt Read the output value of the CA12E using the standard digital multimeter and using the A and V adjustment keys adjust the CA12E so that the output value is set to the offset value Then press the W1 input determination ENTER key to fix the setting After fixing the setting the display unit reading changes to CAL SOURCE ON
8. e to remove the external RJ sensor lt 3 gt Turn on the power of the instrument lt 4 gt Simultaneously press and hold the A1 and V4 keys shown in the figure in the Assign ment of Keys for Calibration section below for about 2 seconds to enter the calibration mode lt 5 gt Select the measurement range to calibrate using the MEASURE SOURCE selection switch and range selection rotary switch CAL and MEASURE appear and FS blinks on the display unit If a value nearly equivalent to full scale has been input a measured value and FS appear lt 6 gt Set up the standard in order to input the full scale value to the instrument Wait until the reading stabilizes then press and hold the W1 input determination ENTER key for about 1 second to fix the setting lt gt After fixing the setting 0 and FS indications on the display unit start blinking Re press and hold the W1 input determination ENTER key for about 1 second to write the calibra tion coefficients to the EEPROM of the instrument This overwrites the previous calibration coefficients lt 8 gt Repeat Steps 5 to 7 for each range to be calibrated To return to the previous step lt 9 gt To return to the previous step without fixing the setting press the A1 input cancellation key Note that this is possible only before writing to the EEPROM To return to the normal operation mode lt 10 gt Simultaneously press and hold
9. he TC generation accuracy does not include the RJ accuracy The sensor output accuracy must be taken into consideration when output compensation is determined based on the RJ temperature output compensation performed every 4 seconds 4 When it is calculated according to the Reference Thermo electromotive Force Table the TC measuring accuracy includes the RJ accuracy TC accuracy added The terminal temperature must be stable 5 Three wire measurement 6 Excitation current for generation 0 5 2 mA Excitation current for measurement approximately 2 mA When the excitation current is 0 1 mA 0 05 1 C 0 4 Q is added and the maximum input capacitance of the device under calibration is 0 1 uF Power supply Four 1 5 V alkaline batteries LR6 AA size or dedicated AC adapter sold separately Battery life Approximately 55 hours when running on alkaline batteries Automatic Power Off After a period of approximately 10 minutes with no operations Generation Signal Level Setting By four sets of up and down keys Response of generator Approximately 20 ms between the time when the specified current is supplied and the time when the output value enters the accuracy range Loading conditions Less than 0 1 uF DCV Measured value indication updating intervals Approximately 1 second Display 7 segments LCD Maximum allowable applied voltage 42 V between each terminal and ground Operating temperature and humidity range 0 to 50 C 20 to 80 R
10. the A1 and V4 keys shown in the figure in the Assign ment of Keys for Calibration section below for about 2 seconds or press the POWER key to turn off the power once and then press it again to turn it back on IM CA12E 02E lt 1 gt 9 Specifications E Source Measurement Functions Accuracy of set value or reading C uV or Q at 23 5 C nange Range of Source Measure Selection 200 0 to 1372 0 C 200 0 to 1000 0 C 0 05 1 C 200 0 to 1200 0 C 0 05 2 C 200 0 to 400 0 C 200 0 to 1300 0 R 0 05 3 C g ete EE 0 05 2 C 0 05 4 C 600 to 1800 C n 200 0 to 900 0 C 0 05 0 5 C 0 07 1 5 C 0 C or above 200 to 400 C 0 05 1 C 0 07 2 C Below 0 C Measurement range 100 mV 10 00 to 110 00 mV 0 05 30 pV 0 05 30 uV hie 11000 ni 0 1 pV Excitation current 0 05 0 6 C 0 05 0 6 C 5 6 Accuracy Resolution Source 3 0 07 1 5 C 0 07 2 C 100 C or above Below 100 C 0 07 3 C 0 07 2 C Below 100 C 100 C or above 0 07 4 C 0 07 3 C Below 1000 C 1000 C or above 50 C Temperature coefficient 1 10 of accuracy C 1 According to JIS C 1602 1995 Reference Thermo electromotive Force Table L and U are determined according to the DIN standard 2 According to JIS C 1604 1997 Reference Resistance Table International Practical Temperature Scale of 1968 IPTS68 for PT100 reference resistance IPTS68 for PT100 is 200 to 650 C 3 T
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