GRAPHTEC midi LOGGER GL860 Quick Start Manual page 7

Maximum input voltage
If a voltage exceeding the specified value goes
into the instrument, the electrical relay in the
input will be damaged. Never input a voltage
exceeding the specified value at any moment.
Standard 20CH screw terminal(B-563)
Standard 20CH screwless terminal(B-563SL)
Standard 30CH screwless terminal(B-563SL-30)
< Between +/– terminals(A) >
• Maximum input voltage:
60Vp-p (Range of 20mV to 2V)
110Vp-p (Range of 5V to 100V)
< Between Channel to channel (B) >
• Maximum input voltage: 60Vp-p
• Withstand voltage: 350 Vp-p at 1 minute
< Between Channel to GND (C) >
• Maximum input voltage: 60Vp-p
• Withstand voltage: 350 Vp-p at 1 minute
Noise countermeasures
If measured values fluctuate due to extraneous noise, run the following countermeasures.
(Results may vary according to noise type.)
Ex 1 : Connect the GL860's GND input to ground.
Ex 2 : Connect GL860's GND input to measurement object's GND.
Ex 3 : Operate GL860 with batteries (Option: B-573).
Ex 4 : In the AMP settings menu, set filter to any setting other than "Off".
Ex 5 : Set the sampling interval which enables GL860's digital filter (see table below).
Number of Measuring
Channels
*1
1 Channel
2 Channel
3 to 4 Channel
5 Channel
6 to 10 Channel
11 to 20 Channel
21 to 40 Channel
41 to 50 Channel
51 to 100 Channel
101 to 200 Channel
*1 Number of Measuring Channels is the number of active channels in which input settings are
NOT set to "Off".
*2 Temperature cannot be set when the active sampling interval is set to 10 ms, 20 ms or 50 ms.
In the "OTHER" menu, the commercial power frequency to be used must be set.
Set the AC power frequency to be used.
Select items
50Hz
60Hz
Withstand high-voltage high-precision
terminal(B-565)
< Between +/– terminals(A) >
• Maximum input voltage:
< Between Channel to channel (B) >
• Maximum input voltage: 600Vp-p
• Withstand voltage: 600Vp-p
< Between Channel to GND (C) >
• Maximum input voltage: 300Vp-p
• Withstand voltage: 2300VACrms at 1 minute
Allowed Sampling
Interval
or slower
5ms
or slower
10ms
or slower
20ms
or slower
50ms
or slower
50ms
or slower
100ms
or slower
200ms
or slower
250ms
or slower
500ms
or slower
1s
Area where the power frequency is 50 Hz.
Area where the power frequency is 60 Hz.
6
60Vp-p (Range of 20mV to 2V)
110Vp-p (Range of 5V to 100V)
Sampling Interval which
enables Digital Filter
50ms
*2
125ms
*2
250ms
*2
250ms
*2
500ms
*2
1s
2s
2s
5s
10s
Description
or slower
or slower
or slower
or slower
or slower
or slower
or slower
or slower
or slower
or slower