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Fluke 744 Fluke 744 Users Manual - Page 30

Charging the Battery, the charger, wait for the blinking indicator

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744 Users Manual Charging the Battery wBefore you use the calibrator for the first time, charge its battery pack in the external battery charger. The Model BC7217 charger charges both the NiMH and Ni-Cd battery packs. Figure 9 shows how to remove the battery. Remove the battery door and tap the calibrator with your hand to get the battery out. Place the battery in the charger and connect the charger to line power. The charger automatically senses line voltage and adjusts itself accordingly. A discharged battery is fully charged in 2 hours or less in fast-charge mode (steady indicator light on the charger). Full charge is maintained after that time in trickle-charge mode (blinking indicator light on the charger). Switching between charging modes is automatic. You can leave the battery pack on trickle charge indefinitely without damage. Note When you remove a charged battery from the charger, wait for the blinking indicator to go off before you insert a discharged battery. It takes about 2 seconds for the battery charger to reset. 20

Section	Page
744 Documenting Process Calibrator Users Manual	1
LIMITED WARRANTY & LIMITATION OF LIABILITY	2
Table of Contents	3
List of Tables	7
List of Figures	9
Introduction	11
Standard Equipment	13
Safety Information	17
Getting Started Exercise	20
Operating Features	22
Input and Output Jacks	22
Keys	24
Display	27
Setting Up the Calibrator	29
Using the Strap and Bail	29
Charging the Battery	30
Battery Life	32
Preserving Battery Life	33
Using the Optional Battery Eliminator	33
Selecting the Display Language	34
Adjusting the Display Contrast	34
Displaying the Date and Time	34
Using the Backlight	36
Personalizing the Calibrator	36
Using Measure Mode	38
Measurement Ranges	38
Measuring Electrical Parameters	38
Testing Continuity	40
Measuring Pressure	40
Measuring Temperature	44
Using Thermocouples	44
Using Resistance-Temperature Detectors (RTDs)	47
Measurement Scale	51
Linear-Output Transmitters	51
Square-Law Process Variables	52
Measuring or Sourcing with Custom Units	53
Using the 700-IV Current Shunt	54
Damping Your Measurements	54
Using Source Mode	56
Sourcing Electrical Parameters	56
Simulating a 4 to 20 mA Transmitter	58
Supplying Loop Power	60
Sourcing Pressure	62
Simulating Thermocouples	65
Simulating RTDs	66
Source Scale	69
Linear-Responding Transmitters	69
Square-Law Process Variables	69
Using Manual Step	70
Using Auto Step	71
Ramping the Output	72
Simultaneous Measure/Source	75
Calibrating a Process Instrument	78
Generating “As Found” Test Data	78
Adjusting the Transmitter	83
“As Left” Test Run	84
Test Comments	85
Calibrating a Delta-Pressure Flow Instrument	85
Calibrating a Limit Switch	86
Transmitter Mode	89
Memory Operations	91
Saving Results	91
Reviewing Memory	93
Data Logging	93
Recording Min and Max Measurements	96
Running a Preloaded Task	96
Clearing Memory	96
Using the Built-in Calculator	97
Saving to and Recalling from the Registers	97
Using the Calculator to Set the Source Value	98
Quick Guide to Applications	98
Communicating with a PC	108
Maintenance	108
Replacing the Battery Pack	108
Internal Lithium Backup Battery	109
Cleaning the Calibrator	109
Calibration Data	109
In Case of Difficulty	109
Service Center Calibration or Repair	110
Replacement Parts	111
Accessories	112
Specifications	114
DC Voltage Measurement	115
AC Voltage Measurement	116
DC Current Measurement	117
Resistance Measurement	117
Continuity Testing	118
Frequency Measurement	118
DC Voltage Output	119
DC Current Output	120
Resistance Sourcing	121
Frequency Sourcing	122
Temperature, Thermocouples	123
Temperature, Resistance Temperature Detectors	126
Loop Power Supply	128
Top and Bottom Limits of Ranges with Auto Range On	129
General Specifications	131