9
● Dimension 167（L） x 185（W） x 89（D）mm
● Weight
approx 900g （including batteries）
● Power source DC12V : sizeAA manganese dry battery (R6P) x 8 pcs
* In a use of this instrument under low temperature below 0ºC, a use of
alkaline batteries with low temperature spec is recommended.
● Operating instrumental uncertainty
Operating instrumental uncertainty (B) is an error obtained within the rated
operating conditions, and calculated with the intrinsic error (A), which is
an error of the instrument used, and the error (En) due to variations.
)
15
.
1
(
2
5
2
4
2
3
2
2
E
E
E
E
A
B
+
+
+
+
±
=
A : Intrinsic error
E
2
: Variation due to changing the supply voltage
E
3
: Variation due to changing the temperature
E
4
: Variation due to series interference voltage
E
5
: Variation due to resistance of the probes and auxiliary earth electrode
resistance
● Range to keep the maximum operating error
Measurement range within which the maximum operating error (±30%)
applies.
2Ω Range
: 0.5Ω ˜ 2.099Ω
20Ω Range
: 2Ω ˜ 20.99Ω
200Ω Range : 20Ω ˜ 209.9Ω
2000Ω Range : 200Ω ˜ 2099Ω
20kΩ Range : 2kΩ ˜ 20.99kΩ
200kΩ Range : 20kΩ ˜ 209.9kΩ
Variation of Supply Voltage : until the Battery Warning mark appears
Temperature Variation : -10℃
~
50℃
Series Interference Voltage : 16･2/3Hz, 50Hz, 60Hz, 400Hz and
DC3V
* No need to consider DC Series interference voltages at 2Ω & 20Ω
Ranges
Auxiliary earth electrode resistance : within following range or 50kΩ
or less whichever smaller (At ρ measurements, "Re" in this formula is
replaced with "Rg".)
Rh,Rs limit
Accuracy
Re<0.40Ω
1kΩ
±5%rdg±1%fs
0.4Ω≦Re<1.00Ω
2kΩ
1.00Ω≦Re<2.00Ω
3.5kΩ
2.00Ω≦Re
=5kΩ (Rh,Rs<50kΩ)
