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5.1.4 Measurement rate
The RESISTOMAT
®
model 2329 was developed to allow quick and reliable measurements of ohmic resistances.
The hardware and software are geared especially toward PLC-controlled measurements. The fastest
measurements are achieved by triggering via a PLC or footswitch and evaluation of the results in combination
with EOC. The single-frame measurement mode and manual range selection are used as a rule.
Every additional function increases the load on the process and reduces the achievable measurement rate.
Activating the temperature compensation
slows down the measurement procedure.
The times must be determined with the
following factors:
Note:
All times were determined with the following settings:
Measurement procedure: Standard, "R" (identical to SINGLE-COMP during single-frame measurements).
No temperature compensation, no interface operation, no max.-min., no datalogger, no printer, no comparator.
Range selection: Manual
Times are measured from the falling edge of the footswitch to the rising edge of the PLC - EOC.
Internally, the free processor capacity is always made available to the measurement procedure. Every
additionally activated function and every interface command (PLC, printer, RS232 and IEEE488) slows down
the measurement.
Resolution
range
20.000
C min
20.000
C med
20.000
C stand
20.000
C max
2.000
C min
2.000
C med
2.000
C stand
2.000
C max
200 m
Ω
45 ms
78 ms
145 ms
276 ms
15 ms
20 ms
39 ms
91 ms
2
Ω
45 ms
78 ms
145 ms
276 ms
15 ms
20 ms
39 ms
91 ms
20
Ω
22 ms
40 ms
80 ms
145 ms
15 ms
20 ms
39 ms
65 ms
200
Ω
22 ms
40 ms
80 ms
145 ms
15 ms
20 ms
39 ms
65 ms
2 k
Ω
30 ms
50 ms
80 ms
145 ms
15 ms
20 ms
39 ms
65 ms
20 k
Ω
74 ms
95 ms
158 ms
263 ms
22 ms
26 ms
45 ms
72 ms
200 k
Ω
283 ms
336 ms
442 ms
756 ms
76 ms
80 ms
100 ms
179 ms
20 mV
107 ms
187 ms
345 ms
660 ms
35 ms
55 ms
82 ms
240 ms
C = Conversion settings (see chapter 5.4.4.1)
Range
Resolution
20.000
Resolution
2.000
200 m
Ω
1.8
1.8
2
Ω
1.8
1.8
20
Ω
1.8
1.8
200
Ω
1.8
1.8
2 k
Ω
1.8
1.8
20 k
Ω
2.1
2.1
200 k
Ω
2.5
2.5
20 mV
1.8
2.6