![background image](http://html1.mh-extra.com/html/east-tester/et2725a/et2725a_user-manual_3446894033.webp)
30
On-off test
0
~
200Ω
1Ω
0.05+1
-10
℃~
18
℃,
+28
℃~
55
℃
temperature coefficient,±0.005%FS/
℃
.
Maximum load voltage: 20V, equivalent to voltage of 20mA on 1000Ω load resistance.
9.6 Resistance measurement (lower display)
Range
Maximum
measurement
range
Resolution
Accuracy
(
Ω
)
ETX-1825
ETX-2025
Two-wire
,
three-wir
e
Four-w
ire
Two-wire
,
three-wir
e
Four-wir
e
400Ω
0
~
440Ω
0.01Ω
0.25
0.15
0.15
0.10
3200Ω
420Ω
~
3600Ω
0.1Ω
1.5
1.0
1.0
0.5
-10
℃~
18
℃,
+28
℃~
55
℃
temperature coefficient,±0.005%FS/
℃
.
Exciting current during measurement:
400Ω
:
0.4mA±10%
;
3200Ω
:
0.2mA±10%
。
Two-wire:
Does not include lead resistance
.
Three-wire:
Assumes matched leads with a total resistance not exceeding
25Ω.
9.7 Resistance source
Range
Maximum
output range
Resolution
External exciting
current
Accuracy (Ω)
ETX-1825
ETX-2025
400Ω
0
~
440Ω
0.01Ω
0.40mA
~
3.30mA
0.25
0.15
3200Ω
400
~
3600Ω
0.1Ω
0.1mA
~
0.6mA
1.0
0.50
-10
℃~
18
℃,
+28
℃~
55
℃
temperature coefficient,±0.005%FS/
℃
.