4601 I-V Meter Operation Manual
1.1 Product Overview
1-3
Configuration
The following figure shows the configuration of the 4601.
Voltage source/voltage measurement/current measurement terminal Vs/Vm/Im
The voltage source unit (Vs) that applies voltage to solar cells (PV), the volt meter (Vm) that measures the
output voltage and the ammeter (Im) that measures the output current are connected to the replaceable
output unit.
The output unit is an optional accessory. It employs a 4-terminal structure and is selectable from the safety
socket type and the terminal block type.
Vm and Ir have dedicated AD converters (ADC) respectively.
For Im, the source direction is represented by +.
Reference cell measurement terminal CELL Ir
This terminal is an ammeter (Ir) to measure the reference cell current.
It employs a 4-terminal structure so that the terminal voltage becomes 0 V, and is connected by a cannon
plug.
The AD converter (ADC3) selects voltage measurement (Em) or temperature measurement (Tc, Pt, AD)
in the DC source mode, or works exclusively for Ir in the sweep source mode, and executes measurement
in synchronous with ADC1 and ADC2.
For Ir, the sink direction is represented by +.
Voltage measurement terminal Em
This terminal is a volt meter (Em) to measure voltage output sensors such as a thermopile.
Temperature measurement T-type thermocouple measurement terminal Tc1, Tc2
This terminal is for T-type thermocouple sensors.
Temperature measurement Pt and IC sensor measurement terminal Pt1, Ad1, Pt2, Ad2
Pt and Ad for both the Ch1 and Ch2 use the same terminals. Either Pt1 or Ad1, Pt2 or Ad2 are selected
respectively.
