Fluke 1502A 84.981 C

5 Parts and Controls

5.1 Front Panel Buttons

See Figure2 .

The front panel buttonsare used to select units of measurement, access operat-

ing parameters, and alter operating parameters. The function of each button is

as follows:

C/Probe—Thisbutton selects u nits of degrees Celsius. In conjunction with the

Menu button,it selects the probe parameter menu.

F/Sample—This buttonselects units of degrees Fahrenheit. In conjunction

with the Menu button,it selects the sample parameter menu.

K/Comm—Thisbutton selects u nits of Kelvin.I n conjunction with the Menu

button,it selects the communication parameter menu.

Ω/Exit (Cal)—This button selects resistance in ohms. While editing a parame-

ter,it cancels the immediate operation and skips to the next parameter. If the

Exit buttonis pressed for more than one-half second the menu is exited. In

conjunction with the Menu button, it selects the calibration parameter menu.

Menu/Enter—Thisbutton allows one of the unit/menu buttons to select a

menu. When editing a parameter,it accepts the new value and skips to the next

operation.

Land R—When editing a numeric parameter, these buttons movebetween

digits.The selected digit flashes.

Uand D— When editing a parameter,th ese buttons increase or decrease the

valueof th e parameter or a selected digit.

13

5 Parts and Controls

Front Panel Buttons

C

PROBE

F

COMM

K

SAMPLE

W

EXIT

MENU

ENTER

1502ATHERMOMETER

READOUT

84.981 C

Figure2 1502A Front Panel

Contents

Main Rev. 722101 Table of Contents 7 Digital Communications Interface . . . . . . . . . . . . . . . 23 ii 7.3 Remote Commands . . . . . . . . . . . . . . . . . . . . . . . . . 26 8 Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . 35 Page Page 1 Before You Start 1.1 Symbols Used 1.2 Safety Information 1.2.1 Warnings 1.2.2 Cautions 1.3 Authorized Service Centers Page 2 Introduction 3 Specifications and Environmental Conditions 3.1 Specifications 9 3 Specifications and Environmental Conditions Specifications 3.2 Environmental Conditions 4 Quick Start 4.1 Unpacking 4.2 Power 4.3 Connecting the Probe Page 5 Parts and Controls 5.1 Front Panel Buttons 84.981 C 5.2 Rear Panel l 6 General Operation 6.1 Selecting Units 6.2 Parameter Menus 6.3 Menu Lockout Page 6.4 Selecting the Probe Characterization E -04 6.4.3 ITS-90 PRT and Coefficients Page [] () [] 6.4.4 Callendar-VanDusen (RTD) Conversion The RTDconversion uses the Callendar-VanDusen equation: 6.4.5 IPTS-68 Conversion A4 +4.336079 E -04 6.5 Filtering 6.6 Setting the Current 6.7 Power Saver 7 Digital Communications Interface 7.1 Serial Interface 7.1.1 Setting the Baud Rate 7.1.2 Automatic Transmission of Measurements 7.1.3 Time Stamp and System Clock 7.1.4 Duplex Mode and Linefeed 7.2 GPIB Interface 7.2.1 Setting the Address 7.2.2 Setting the Termination Character 7.2.3 Time Stamp 7.3 Remote Commands 7.3.1 Measurement Commands 27 7 Digital Communications Interface Remote Commands Table 6 Command List Page 7.3.2 Probe Characterization Commands 7.3.3 Sample Commands 7.3.4 Communication Commands 7.3.5 Calibration Commands 7.3.6 Other Commands Page 8 Calibration Procedure 8.1 Accessing the Calibration Parameters 8.2 Calibration Procedure 9 Maintenance 10 Troubleshooting 10.1 CE Comments 10.1.1 EMC Directive 10.1.2 Low Voltage Directive (Safety)