Fluke 187 user manual Adjusting the Temperature Offset

Page 71

Model 187 & 189

Users Manual

Select and edit setup options as follows:

Turn the rotary switch to a measurement function:

Press O T to advance to the next setup option and save the present selection.

Press [ to increase or ] to decrease a value.

Press T (l) to go back to the previous digit or selection.

Adjusting the Temperature Offset

If the meter is in a temperature measurement function, use the following procedure to set an offset for your temperature probe:

1.Turn the rotary switch to temperature (w).

2.Connect&the temperature probe and probe adapter to

the and V inputs on the meter.

Press % ( s) to advance to the next digit or selection.

Any digit or selection being changed flashes when active.

Press O N (CANCEL) to exit Setup. (Be sure to save your last selection by pressing O T first.)

3.Place the temperature probe and an accurate thermometer in a lag bath (i.e., a container with an isothermal liquid).

4.Press O T to enter the Setup mode and temperature adjust.

The primary display shows the measured value for the temperature probe. This value is already adjusted by any previously stored offset (shown in the secondary display.) See Figure 5-1.

5-4

Image 71
Contents Model 187 Lifetime Limited Warranty Table of Contents Making Measurements Model 187Iii Specifications MaintenanceList of Tables List of Figures Viii Contacting Fluke Safety InformationBefore You Start WWarning Safety InformationBefore You Start International Electrical Symbols SymbolsTurning the Meter On Getting AcquaintedIntroduction Automatic Power Off Battery ConsiderationsAutomatic Backlight Off Low Battery IndicationRotary Switch Rotary SwitchPushbuttons PushbuttonsBlue Key Function Rotary Switch Selections Position Rotary Switch FunctionView MEM Rotary Switch PositionsButton Pushbuttons Yellow Button Description Function Yellow Button Function Pushbuttons Button DescriptionPrimary Display Selecting the RangeUnderstanding the Display Secondary Display Bar GraphDisplay Features Number Feature Display Features Description 8.8.8 Display Features NumberDisplay Features Description Number FeatureFMS8888 HM8888 8.8 Display Features Number 51000Input Terminals Using the Input TerminalsDisplay Hold and AutoHOLD Using Display HoldUsing MIN MAX Using AutoHOLDModel 187 Min Max Avg Using Fast MN MXUsing Hold with MIN MAX or Fast MN MX Using Relative Mode RELMeasuring Voltage Making MeasurementsAC Voltage Measurement Measuring AC VoltageDBm Display DB Measurements in AC Volts FunctionsBoth AC and DC Voltage Measurements Measuring DC VoltageAC and DC Display AC over DC DC over ACCapacitors before measuring resistance Measuring ResistanceOFF Automatically subtract this value Testing for ContinuityUsing Conductance for High Resistance Tests For in-circuit tests, turn circuit power off Conductance Measurement Measuring Capacitance Capacitance Measurement Testing DiodesDiode Test Electrically live circuits Measuring TemperatureShock, do not connect the thermocouples to Input Ranges Measuring CurrentMeasuring Current Input Alert FeatureFollowing are some tips for measuring current Measuring AC Current11. AC Current Measurement Measuring DC Current Current through one component Total current to circuit13. Functions Allowing Frequency Measurement Measuring Frequency14. Hz Display Measuring Duty CycleMeasures Negative Pulse Measures Positive Pulse16. Duty Cycle Display Measuring Pulse WidthStart and Stop on Negative Slope Start and Stop on Positive Slope18. Pulse Width Display Logged Readings Memory Using Memory & Communications FeaturesTypes of Memory Saved Readings MemoryStopping Logging Storing Saved ReadingsStarting Logging To avoid electric shock, disconnect the test Viewing Memory DataMEM View DisplayClearing Memory Using Communications 187Selecting Setup Options Changing the Default SettingsOption Function Specific Setup SelectionsFactory Default PreconditionChoices Common Setup SelectionsAdjusting the Temperature Offset Changing the Default Settings Setting the Power Off Timeout Selecting Display Resolution 3 1/2 or 4 1/2 DigitsSetting the Line Main Frequency Setting the 24-Hour ClockSaving Setup Options Returning to Factory DefaultsTesting the Fuses MaintenanceIntroduction General Maintenance Replace F2 if Replace F1 if Displayed Replacing the Batteries Battery and Fuse Replacement Case of Difficulty Replacing the FusesUser-Replaceable Parts MP8 MP9 Safety and Compliances SpecificationsPhysical Specifications Feature Summary Basic Specifications Detailed Accuracy Specifications KHz-100 kHz Accuracy Function45-1 kHz 20 kHzDC a 500.00 Ω Capacitance Diode Test MIN MAX AVG Burden Voltage A, mA, µA Frequency Counter SensitivityInput Characteristics