Fluke 1502A-156 Product Manual - Page 22

sponse time. You can set it to any value between 0 and 60 seconds. A value

of 0 disables the filter. The default time constant is 4 seconds.

To change the filter value, enter the

Sample

menu. This is done by first press-

ing the

Menu

button (“

SEt?

” appears) then pressing the

F/Sample

button.

The display will briefly indicate “

SA Par

”, then “

FILtEr

”, then the current filter

value. Use the

U

and

D

buttons to increase or decrease the filter value then

press

Enter

. The next parameter in the menu, the current, will then appear.

6.6

Setting the Current

You can select one of two options for the probe excitation current: 1.0 mA (de-

fault) or 0.5 mA. The current is set within the

Sample

menu. Press the

Menu

button (“

SEt?

” appears) then press the

F/Sample

button. The filter value will

appear. Press

Enter

to continue. The display will briefly show “

CurrEnt

” fol-

lowed by the value for the current. You can use the

U

and

D

buttons to change

the value for the current. Press

Enter

to continue.

6.7

Power Saver

The power saver feature is useful for conserving power when operating from a

battery. It causes the display to blank after a period of no user activity. The

power saver feature can reduce operating current by as much as 100 mA.

While the display is blanked a small illuminated dot appears on the left side of

the display as an indication that the 1502A is still operating. Pressing any but-

ton on the front panel restores the display. You can program the power saver

to activate after a specified period of time from 5 minutes to 60 minutes in in-

tervals of 5 minutes. You can also disable the power saver feature completely.

The power saver is off by default.

The power saver is programmed in the

Sample

menu. Press the

Menu

button

(“

SEt?

” appears) then press the

Sample

menu button. Press

Exit

twice to

skip to the power saver parameter. The display will briefly show “

PO SA

” fol-

lowed by the power saver setting. You can use the

U

and

D

buttons to

change the power saver period (in minutes) or set it to OFF. Press

Enter

to

continue.

22

Manual Rev. 952801

Hart Scientific

6

General Operation

Shop for Fluke products online at:

1.888.610.7664

www.

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.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 22

Setting the Current, Power Saver

Page 22 highlights