Hioki SM7860 Series, Instruction Manual

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1
Overview
1.1 Product Overview and Features
The SM7860 series Power Source Unit is a power source designed for use with the SM7420 Super
Megohm Meter and SM7810‑20 Super M
Ω
HiTester. When used in conjunction with the SM7420 or
SM7810‑20, the SM7860 serves as an ideal power source for automatic testing and measurement of
capacitors.
Positive- and negative-polarity output / Multi-channel output
• The device supports multichannel systems with up to 32 channels.
• The output voltage can be set separately for two circuits, each consisting of 8 or 16 channels.
• The device provides both positive‑ and negative‑polarity power sources.
• It can be used to create an optimal testing line with the minimum necessary number of power sources.
Independent on/off output switching and current limitations for all channels
• Since each channel has its own output on/off switch, it is possible to control voltage application
without an external circuit (allowing charging and discharging).
• Use of semiconductor switches eliminates the need for maintenance.
• Ability to limit current for individual channels means the measurement of other channels won’t be
affected when a target workpiece has a short.
Variable output current limit value
• 500 V output model: The output current limit can be set as desired from 2 mA per channel to 50 mA
per channel.
• 1000 V output model: The output current limit can be set as desired from 2 mA per channel to 10 mA
per channel.
1000 V output voltage model
• The line includes a model that can generate output of up to ±1000 V.
High-current output at 50 mA/channel*
• The device can quickly charge high‑capacity MLCC (multi‑layer ceramic capacitor). Number of
charges can be reduced.
* For the 1000 V model, limited to 10 mA/channel.
Standard interfaces
• Devices ship standard with EXT. I/O, GP‑IB, and RS‑232C interfaces for sequencing. Interfaces are
used to configure and power the device.
Interlock function
• Since the device outputs measurement and charging voltages when measurement starts, erroneous
operation poses the risk of electric shock. An interlock function is used to ensure safe measurement.
Settings can be configured by sending signals via the device’s external I/O interface.
1 Overview