Fluke 724 Руководство по калибровке онлайн

Содержание

• 725 726 calibration manual p.1
• Calibrators p.1
• Calibration manual p.1
• 725 726 p.1
• Warranty p.2
• Table of contents p.3
• List of tables p.5
• 725 726 p.6
• List of figures p.7
• 725 726 p.8
• Contacting fluke p.9
• Introduction p.9
• Read first safety information p.10
• International symbols p.11
• Specifications p.12
• Performance and accuracy are specified for one year after calibration at operating temperatures of 18 c to 28 c 64 f to 82 f in relative humidity to 90 after a 5 minute warm up period p.12
• Note a count is the amount by which the least significant digit can vary p.12
• Dc voltage source 724 and 725 p.12
• Dc voltage measurement and source 726 p.12
• Dc voltage measurement 724 and 725 p.12
• Dc ma measurement and source 724 and 725 measurement only for 724 p.12
• 725 726 p.12
• Ohms source 724 and 725 p.13
• Ohms measurement 726 p.13
• Ohms measurement 724 and 725 p.13
• Dc ma measurement and source 726 p.13
• Calibrators specifications p.13
• Ohms source 726 p.14
• Frequency source 725 p.14
• Frequency measurement 726 p.14
• Frequency measurement 725 p.14
• 725 726 p.14
• Temperature thermocouples 724 and 725 p.15
• Millivolt measurement and source 724 and 725 p.15
• Frequency source 726 p.15
• Calibrators specifications p.15
• Temperature thermocouples 726 p.16
• 725 726 p.16
• Temperature rtd ranges and accuracies 724 and 725 p.17
• Calibrators specifications p.17
• Rtd accuracy read and source its 90 726 p.18
• 725 726 p.18
• Calibrators specifications p.19
• Voltage 24 v p.19
• Short circuit protected p.19
• Pulse read and pulse source 726 p.19
• Pressure units availability 725 p.19
• Pressure measurement 725 and 726 p.19
• Maximum current 22 ma p.19
• Loop power supply p.19
• Warning to avoid electric shock or damage to the calibrator never allow water inside the calibrator s case p.20
• If the calibrator requires cleaning wipe it down with a cloth that is lightly dampened with water or a mild detergent p.20
• General specifications p.20
• Do not use aromatic hydrocarbons chlorinated solvents or methanol based fluids when cleaning the calibrator to avoid damaging the case never apply solvents to the calibrator p.20
• Cleaning the calibrator p.20
• 725 726 p.20
• Replacing the batteries p.21
• Remote control interface 725 and 726 p.23
• 725 726 p.24
• Calibrators remote control interface 725 and 726 p.25
• Serial command list 726 p.26
• Command response actions command arguments comment ch 1 ch 2 p.26
• Upper_meas p.26
• Table 5 serial command list 726 and 725 v3 0 and later p.26
• Table 5 lists the serial commands for the 726 and 725 calibrator with v3 0 and higher firmware refer to remote control interface 725 and 726 for activation steps p.26
• Calibration manual p.26
• 725 726 p.26
• Calibrators serial command list 726 p.27
• Table 5 serial command list 726 and 725 v3 0 and later cont p.27
• Freq_unit p.27
• Command response actions command arguments comment ch 1 ch 2 p.27
• Freq_level p.28
• Command response actions command arguments comment ch 1 ch 2 p.28
• Calibration manual p.28
• 725 726 p.28
• V_range p.28
• Trig 726 only p.28
• Table 5 serial command list 726 and 725 v3 0 and later cont p.28
• Pulse_freq p.28
• Lower_meas p.28
• Tsens_type p.29
• Tc_type p.29
• Table 5 serial command list 726 and 725 v3 0 and later cont p.29
• Rtd_type p.29
• Cprt_r0 726 only p.29
• Cprt_min_t 726 only p.29
• Cprt_max_t 726 only p.29
• Command response actions command arguments comment ch 1 ch 2 p.29
• Cjc_state p.29
• Calibrators serial command list 726 p.29
• 726 only p.30
• 725 726 p.30
• Temp_unit p.30
• Table 5 serial command list 726 and 725 v3 0 and later cont p.30
• Rtd_wire p.30
• Cust3_alias1 p.30
• Cust2_alias 726 only p.30
• Cust1_alias 726 only p.30
• Cprt_max_t 726 only p.30
• Cprt_coefc 726 only p.30
• Cprt_coefb 726 only p.30
• Cprt_coefa 726 only p.30
• Command response actions command arguments comment ch 1 ch 2 p.30
• Calibration manual p.30
• Calibrators serial command list 726 p.31
• Cal_start p.31
• Command response actions command arguments comment ch 1 ch 2 p.31
• Table 5 serial command list 726 and 725 v3 0 and later cont p.31
• Hart_on p.31
• Hart_off p.31
• Error codes p.31
• Cust3_alias 726 only p.31
• Warning to avoid safety hazards and equipment damage during the calibration procedures use the specified calibration equipment listed in table 6 using unspecified equipment can give unreliable results and pose safety hazards p.32
• Required equipment p.32
• Equipment and software required to perform the procedures in this manual are identified in table 6 if the recommended equipment model is not available other equipment can be substituted if it meets the specifications indicated p.32
• 725 726 p.32
• Preparing for the performance tests p.33
• Performance tests p.33
• Upper display voltage measurement tests p.34
• Lower display mv tc measurement tests p.35
• Lower display voltage measurement tests p.36
• Upper display ma measurement tests p.37
• Lower display ma measurement tests 725 and 726 p.38
• Lower display frequency measurement test 725 and 726 p.39
• Lower display frequency source test 725 and 726 p.40
• Set the 5520a to source the resistance values in table 12 and verify that the uut resistance readings are within the limits shown p.41
• Set the 5520a to 2 wire output with 2 wire compensation off then make the connections shown in figure 8 p.41
• Press stby on the 5520a p.41
• Press on the uut on 726 until ω appears on the lower display if necessary use to get to the measure mode and use to get to the 4w mode measure should also appear on the lower display p.41
• Lower display 4 wire resistance measurement tests p.41
• Calibrators performance tests p.41
• Lower display 3 wire rtd measurement p.42
• Lower display thermocouple measurement tests p.43
• Lower display thermocouple source test p.44
• Lower display ma source tests 725 and 726 p.45
• Lower display voltage source tests p.46
• Lower display mv source tests p.46
• Lower display ohms source tests p.47
• Calibrators performance tests p.47
• Use the arrow keys on the uut to set the uut output to the resistance values in table 18 and verify that the fluke 8508a readings are within the limits shown p.47
• The performance tests for the 724 are now complete disconnect and secure all test equipment p.47
• Set the fluke 8508a to measure 4 wire resistance p.47
• Set the fluke 8508a to 2 k range with loi off for 72x resistance 400 ω to 20 k ω with loi off range for 400 ω or more p.47
• Press on the 726 on the uut until ω appears on the lower display if necessary press until source appears on the lower display p.47
• Make the connections shown in figure 12 p.47
• Calibration adjustment p.48
• Pressure module input 725 726 p.48
• The calibration menus as seen on the pc screen are as follows p.50
• Starting with the uut off push and hold while turning the uut on continue to hold until cal mode is displayed enter password appears on the display of all calibrators that have firmware version v1 1 or higher a password has been added to prevent users from accidentally changing the calibration of the calibrator the password for all 724 calibrators is 427 the password for all 725 calibrators is 527 p.50
• Initiating communication 724 and 725 with v2 xx and lower firmware p.50
• Calibration menu p.50
• Calibration manual p.50
• 725 726 p.50
• Calibration adjustment procedures 724 and 725 with v2 xx and lower firmware p.51
• Cal volts input p.51
• Cal volts output p.52
• Cal ma input fluke 725 only p.53
• Cal ma output 725 only p.54
• Cal mv input p.55
• Cal mv output p.56
• Cal thermocouples p.57
• Cal ohms hi source p.58
• Cal ohms low source p.59
• Cal rtd low range p.60
• Cal rtd hi range p.61
• Cal iso volts p.62
• Cal iso ma p.63
• Initiating communication p.64
• Calibration adjustment procedures 726 and 724 725 with v3 0 and higher p.64
• Calibration menu p.65
• Calibration menu 725 calibration menu p.65
• Calibrators calibration adjustment p.65
• Calibrating isolated ma input p.66
• Calibrating isolated voltage input p.67
• Calibrating ma input fluke 725 and 726 only p.68
• Calibrating ma output fluke 725 and 726 only p.69
• Calibrating voltage input p.70
• Calibrating voltage output p.71
• Calibrating low ohms source p.72
• Calibrating high ohms source p.73
• Calibrating ohms measure p.74
• Calibrating thermocouple mv output p.75
• Calibrating thermocouple mv input p.76
• Calibrating thermocouple cjc p.77
• Replaceable parts p.78
• When servicing this calibrator use only the replacement parts specified user replaceable parts are listed in table 19 and shown in figure 36 p.78
• 725 726 p.78
• Calibrators replaceable parts p.79