Fluke 2620A, 2625A Operating the Instrument from the Front Panel, Measurement Connections

Operating the Instrument from the Front Panel	3
Measurement Connections

2-WIRE (2T) CONNECTION

SOURCE

(4-WIRE)

11 12 13 14 15 16 17 18 19 20

H L H L H L H L H L H L H L H L H L H L

SENSE

(4-WIRE)

H L

1

H L H L H L H L H L H L H L H L H L
2	3	4	5	6	7	8	9	10
								RESISTANCE
								OR
								RTD SOURCE

USE H AND L TERMINALS FOR ANY CHANNEL.

•CHANNEL 0 ON FRONT PANEL

•CHANNELS 1 THROUGH 20 ON REAR

PANEL INPUT MODULE (CHANNEL 8 SHOWN HERE).

4-WIRE (4T) CONNECTION

SOURCE

(4-WIRE)

SENSE

(4-WIRE)

11 12 13 14 15 16 17 18 19 20

H L	H L	H L	H L	H L	H L	H L	H L	H L	H L
H L	H L	H L	H L	H L	H L	H L	H L	H L	H L

1 2 3 4 5 6 7 8 9 10

RESISTANCE

OR

RTD SOURCE

USE H AND L TERMINALS FOR TWO CHANNELS ON REAR PANEL INPUT MODULE. CONNECTIONS FOR CHANNEL 8 SHOWN HERE WITH CHANNEL 18 PROVIDING ADDITIONAL TWO CONNECTIONS.

FOR EACH 4-WIRE CONNECTION, ONE SENSE CHANNEL (1 THROUGH 10) AND

ONE SOURCE CHANNEL (SENSE CHANNEL NUMBER +10 = 11 THROUGH 20) ARE USED.

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Figure 3-3. 2-Terminal and 4-Terminal Connections

3-21