4601 I-V Meter Operation Manual
5.3.3 High Voltage Indicator Lightning Condition
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5.3.3
High Voltage Indicator Lightning Condition
When the 4601 generates 55 V or higher or its source condition is set, the High Voltage indicator goes ON.
5.3.4
Measurement Function and Range
As the 4601 includes three AD converters (ADC1 to ADC3), it can measure three points simultaneously.
The three measurement points are shown below, and among which ADC3 has eight measurement func-
tions.
The ADC3 function is selectable from the eight functions in the DC source mode; however it is fixed to
reference cell current measurement Ir in the sweep source mode.
1. ADC1:
Output voltage measurement
Vm
2. ADC2:
Output current measurement
Im
3. ADC3:
Reference cell/external voltage/temperature measurement
Ir
: Reference cell current measurement
Em : External voltage measurement
Tc1 : Ch1 T-type thermocouple measurement
Pt1 : Ch1 resistance bulb (Pt) temperature measurement
Ad1 : Ch1 IC sensor AD590 temperature measurement
Tc2 : Ch2 T-type thermocouple measurement
Pt2 : Ch2 resistance bulb (Pt) temperature measurement
Ad2 : Ch2 IC sensor AD590 temperature measurement
Ir
Reference cell current measurement range
*: The polarities of measured values are represented as "+" for sink and as "-" for source.
Em
External voltage measurement range
DC mode
Sweep mode
Standby
Suspend
Operate
Standby
Suspend
Operate
55 V
Source value
55 V
Bias value
55 V
Sweep value
Range
Measurement range *
Measurement resolution
3 mA
30 mA
300 mA
0 to
3.19999 mA
0 to
31.9999 mA
-32.000 mA to
319.999 mA
10 nA
100 nA
1
A
Range
Measurement range
Measurement resolution
30 mV
300 mV
3 V
31.9999 mV
319.999 mV
3.19999 V
0.1
V
1
V
10
V
