NARDA ELT-400, Operating Manual

Page: 32 / 100

5 Operation and use ELT-400
5-4
5.2 Example applications
To take advantage of the full performance of the ELT-400, it is important to
optimize the instrument settings to match the expected characteristics of the
field being investigated. The table below provides assistance for this
important task. It shows typical applications together with the appropriate
instrument settings. Please note, though, that the choice of measurement
range or the lower measurement range limit in particular must be decided
according to the actual measurement situation and the aim of the
measurement.
Application Characteristic feature Recommended
instrument setting
Magnetic stirring High field strengths,
very low frequencies
•
MODE :
Exposure STD (Exp.1/ occ.)
•
RANGE : High
•
LOW CUT : 1 Hz
Household Low field strength
50/60 Hz
•
MODE : Field strength
320
µ
T
•
RANGE : Low
•
LOW CUT : 30 Hz
•
DETECT : RMS
Induction heating /
melting High field strength
50 Hz to 20 kHz
•
MODE :
Exposure STD (Exp.1/ occ.)
•
RANGE : High
•
LOW CUT : 30 Hz
Annealing / tempering High field strength
10 kHz to 30 kHz
•
MODE :
Exposure STD (Exp.1/ occ.)
•
RANGE : High
•
LOW CUT : 30 Hz
Resistance welding,
spot welding
50 Hz, pulsed)
•
MODE :
Exposure STD (Exp.1/ occ.)
•
RANGE : High
•
LOW CUT : 30 Hz
MF welding Pulsed DC field with
dominant component of
converter frequency
•
MODE :
Exposure STD (Exp.1/ occ.)
•
RANGE : Low
•
LOW CUT : 1 Hz
Table 5-1 Example applications and instrument settings