Hioki 3541 - Chapter 9 Specifications; General Specifications

159
9.1 General Specifications
Specifications Chapter 9
9.1 General Specifications
Measurement functions Four-terminal resistance
measurement
0.1 µΩ (20mΩ range) to 110.000 MΩ
Low-power four-terminal
resistance measurement
10 µΩ (2Ω range) to 2.00000 kΩ
Temperature measurement
(Pt)
-10.0 to 99.9°C
Temperature measurement
(analog input)
0 to 2 V
Temperature measurement
(3444/3445+3909 via RS-232C)
-50.0°C to 500.0°C
Range switching
function
Auto-ranging (AUTO indicator) and Manual setting
Temperature correction
function
Reference temperature setting
range
-10 to +99.9°C
Temperature coefficient
setting range
-9999 to +9999 ppm
Displayed values -99,999 to +999,999 dgt
Correction formula
()
00
0
1 tt
R
R
t
t
t
−×+
=
α
R
t
Actual measured resistance......... [Ω]
R
t0
Corrected resistance ................... [Ω]
t
0
Reference temp. ........................ [°C]
t Ambient temperature .................. [°C]
α
t0
Temperature coefficient at t
0
... [1/°C]
Temperature
conversion function
Display Temp. increase ∆t
Cold-state winding resistance
setting range (R
1
)
00.0000 mΩ to 110.000 MΩ
Cold-state temperature setting
range (t
1
)
-10.0 to 99.9°C
Reciprocal temp. coefficient
setting range (k)
-999.9 to +999.9
Conversion formula
()()
a
tktk
R
R
t +−+=
1
1
2
Δ
∆t Temperature increase..............................[°C]
t
1
Winding temp. (cool state) when measuring
initial resistance R1..................................[°C]
t
a
Ambient temp. at final measurement .......[°C]
R
1
Winding resistance at temp. t1 (cool state)[Ω]
R
2
Winding resistance at final measurement .[Ω]
k Reciprocal of temp. coefficient of conductor
material at 0°C .........................................[°C]