Fluke 2620A, Manual

Page: 149 / 310

Performance Testing and Calibration
Performance Tests
4
4-9
12 11 13 14 15 16 17 18 19 20
2 1 3 4 5 6 7 8 9 10
SOURCE
(4-WIRE)
SENSE
(4-WIRE)
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
2-WIRE (2T) CONNECTION
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 1 SHOWN HERE).
12 11 13 14 15 16 17 18 19 20
2 1 3 4 5 6 7 8 9 10
SOURCE
(4-WIRE)
SENSE
(4-WIRE)
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
4-WIRE (4T) CONNECTION
RESISTANCE
OR
RTD SOURCE
USE H AND L TERMINALS FOR TWO CHANNELS ON REAR PANEL INPUT MODULE.
CONNECTIONS FOR CHANNEL 1 SHOWN HERE WITH CHANNEL 11 PROVIDING
ADDITIONAL TWO CONNECTIONS.
FOR EACH 4-WIRE CONNECTION, ONE SENSE CHANNEL (1 THROUGH 10) AND
ONE SOURCE CHANNEL (SENSE CHANNEL 10 = 11 THROUGH 20) ARE USED.
s27f.eps
Figure 4-2. 2T and 4T Connections