LEM Saturn 100 Plus, Operating Instructions Manual, Page: 61 / 329

Information for the tester
59
Low-Resistance Measurement and Continuity Check (R)
Measuring method: Current-voltage measurement as per
IEC 61557-4
Nominal voltage: Battery voltage:
≥
5,5 V; max. 9 V DC
Short-circuit current:
≥
200 mA DC
Permissible overload: U
rms
= 600 V (measurement is not started)
Measured-value formation
without zero compensation: R
display
= R
measured
- 70 m Ω (measuring-lead
resistance)
Measured-value formation
with zero compensation
R
display
= R
measured
- R
compensation
( <o> / section
3.10)
Compensation of measuring cables up to 5
Ω
possible.
Measuring Range Resolution Intrinsic error
0,01...0,15...999
Ω
0,01-0,1
Ω ± (5% of m.v. + 3 digits)
Internal resistance:
approx. 20
Ω
Measuring time: approx. 2 s incl. voltage pole change for resistive
specimen rising to max. 20 s for parallel inductances.
Permissible inductive
component:
max. 2.5 H without influence on measurement result;
max. 5 H without damage
Permissible series-mode
voltage:
≤
3 V AC or DC, no measurement is started beyond
this value
Continuity check:
Same as low-resistance measurement, continuous measurement without pole
change after pressing the key. Response threshold: At Rext < 2
Ω ± 0.5 Ω audible
signal and „ con “ is displayed.
Resistance Zero Compensation (<o>)
The measured value stored in this function is automatically subtracted in all
resistance measurements (R
A
, R
S
, R)!!
Measuring Range Resolution Intrinsic error
0,01-0,15-2,99-5,0 Ω 0,01-0,1 Ω
± (5% of m.v. + 3 digits)
Measuring time:
approx. 1 sec; no voltage pole change
Nominal voltage: Battery voltage: ≥ 5.5 V; max. 9 V DC
Short-circuit current:
≥
200 mA DC, < 450 mA DC