Fluke 1502A-156 Product Manual - Page 15

6

General Operation

This section explains basic operation of the 1502A Thermometer.

6.1

Selecting Units

Temperature can be displayed in degrees Celsius (indicated with “

C

”), degrees

Fahrenheit (indicated with “

F

”),

or Kelvin (indicated with “

A

” for absolute). The

resistance of the sensor can also be displayed (indicated with “

o

” for ohms).

Simply press the appropriate unit button, C, F, K, or

Ω

to select the units.

6.2

Parameter Menus

Except for unit selection, all functions and operating parameters are accessed

and edited within the parameter menus. There are four menus: the

Probe

pa-

rameter menu,

Sample

parameter menu,

Comm

(communication) parameter

menu, and

Cal

(calibration) parameter menu. The arrangement of parameters

in the menus is shown in

Figure 5

on page 16.

Menus are selected by pressing the

Menu/Enter

button followed by the appro-

priate menu selection button. The name of the menu will briefly appear on the

display. For example, the

Probe

menu is selected by pressing the

Menu/Enter

button (“

SEt?

” appears on the display) followed by the

C/Probe

button

(“

ProbE

” appears). Selecting the

Cal

menu requires that you press the

Menu/Enter

button then press the

Ω

/

Exit

button and hold it down for at least

one second.

The

Probe

menu contains parameters for selecting the probe characterization

and setting the characterization coefficients. These parameters are explained

in

Section 6.4

. The

Sample

menu contains parameters for setting the filter and

excitation current. These are explained in

Sections 6.5

and

6.6

. The

Comm

menu contains communication parameters such as the serial baud rate or

IEEE-488 address. These are explained in

Sections 7.1

and

7.2

. The

Cal

menu contains the calibration parameters. These are explained in

Section 8.1

.

6.3

Menu Lockout

All menus can be locked out to prevent inadvertently changing parameters. By

default, only the

Cal

menu is locked out. The lockout option is accessed in the

Cal

menu (see

Section 8.1

“Accessing the Calibration Parameters”).

If menus are locked out you must enter the correct password (“2051”) to gain

access. After you select the menu (see the previous section) the display will

show “PA=

0000” and allow you to change the number to the correct pass-

word. Use the

L

and

R

buttons to move between the password digits and

the

U

and

D

buttons to increase or decrease the value of a digit. Press

En-

ter

when all the digits are correct. If the password is entered correctly the first

parameter in the menu will appear.

1502A

Manual Rev. 952801

15

6

General Operation

Shop for Fluke products online at:

1.888.610.7664

www.

MyFlukeStore

.com

Section	Page
Ta ble of Con tents	3
1 In tro duc tion 1	6
2 Spec i fi ca tions and En vi ron men tal Con di tions 3	7
2.1 Spec i fi ca tions 3	7
2.2 En vi ron men tal Con di tions 4	8
2.3 War ranty 4	8
3 Safety Guide lines 7	9
4 Quick Start 9	10
4.1 Un packing 9	10
4.2 Power 9	10
4.3 Con necting the Probe 9	10
4.4 DC Power Op tion 10	11
5 Parts and Con trols 13	13
5.1 Front Panel But tons 13	13
5.2 Rear Panel 14	14
6 Gen eral Op er a tion 15	15
6.1 Se lecting Units 15	15
6.2 Pa ram e ter Menus 15	15
6.3 Menu Lock out 15	15
6.4 Se lecting the Probe Char ac ter iza tion 17	17
6.4.1 Set ting the Probe Char ac ter iza tion Type 17	17
6.4.2 Set ting the Char ac ter iza tion Co ef fi cients 17	17
6.4.3 ITS-90 PRT and Co ef fi cients 18	18
6.4.4 Callendar-Van Dusen (RTD) Con ver sion 20	20
6.4.5 IPTS-68 Con ver sion 20	20
6.4.5.1 Set ting the Char ac ter iza tion Co ef fi cients 21	21
6.4.5.2 Testing the Co ef fi cients 21	21
6.5 Fil tering 21	21
6.6 Set ting the Cur rent 22	22
6.7 Power Saver 22	22
7 Dig i tal Com mu ni ca tions In ter face 23	23
7.1 Se rial In ter face 23	23
7.1.1 Set ting the Baud Rate 24	24
7.1.2 Au to matic Trans mis sion of Mea sure ments 24	24
7.1.3 Time Stamp and Sys tem Clock 24	24
7.1.4 Du plex Mode and Line feed 25	25
7.2 GPIB In ter face 25	25
7.2.1 Set ting the Ad dress 26	26
7.2.2 Set ting the Ter mi na tion Char ac ter 26	26
7.2.3 Time Stamp 26	26
7.3 Re mote Com mands 26	26
7.3.1 Mea sure ment Com mands 26	26
7.3.1.1 Read ing Tem per a ture 28	28
7.3.1.2 Au to matically Trans mitting Mea sure ments 29	29
7.3.1.3 Se lecting the Unit of Mea sure ment 29	29
7.3.1.4 En abling the Time Stamp 29	29
7.3.1.5 Set ting the Clock 29	29
7.3.2 Probe Char ac ter iza tion Com mands 29	29
7.3.2.1 Se lecting the Char ac ter iza tion 29	29
7.3.2.2 Testing the Char ac ter iza tion 30	30
7.3.3 Sam ple Com mands 30	30
7.3.3.1 Set ting the Fil ter 30	30
7.3.3.2 Set ting the Probe Cur rent 30	30
7.3.3.3 Set ting the Power Saver 31	31
7.3.4 Com mu ni ca tion Com mands 31	31
7.3.4.1 Set ting the Du plex Mode 31	31
7.3.4.2 Set ting the Line feed Op tion 31	31
7.3.5 Cal i bra tion Com mands 31	31
7.3.5.1 En tering the Pass word 31	31
7.3.5.2 Set ting the Menu Lock out 31	31
7.3.5.3 Set ting the Cal i bra tion Co ef fi cients 32	32
7.3.5.4 Set ting the Se rial Num ber 32	32
7.3.6 Other Com mands 32	32
7.3.6.1 In stru ment Iden ti fi ca tion 32	32
7.3.6.2 Read ing a List of Com mands 32	32
8 Cal i bra tion Pro ce dure 33	33
8.1 Ac cessing the Cal i bra tion Pa ram e ters 33	33
8.2 Cal i bra tion Pro ce dure 34	34
9 Main te nance 35	35
10 Trou ble shooting 37	36

Fluke 1502A-156 Product Manual - Page 15

Selecting Units, Parameter Menus, Menu Lockout

Page 15 highlights