Hioki Super megohm SM7110 User Manual

SM7110
SM7120
Instruction Manual
SUPER MEGOHM METER
EN
Nov. 2018 Revised edition 3
SM7110A961-03 18-11H
Be sure to read this manual before
using the instrument.
Safety information
Operating Precautions

p.6

p.9
When using the instrument
for the rst time
Troubleshooting
Names and Functions of Parts

p.18
Maintenance and Service

p.157
Preparing for Measurement

p.29
Error display and solution

p.160

Hioki Super megohm SM7110 Specifications

General

Brand	Hioki
Model	Super megohm SM7110
Category	Measuring Instruments
Language	English

Summary

Overview

Product Overview and Features

Introduces the instrument's capabilities, including its sensitive ammeter and low-noise voltage supply.

Names and Functions of Parts

Details the front and rear panel components and their functions.

Screen Configuration and Operation

Explains the measurement and settings screens of the instrument.

Basic Key Operation

Covers how to navigate and operate the instrument using its keys.

Preparing for Measurement

Connecting Power Cord to instrument

Step-by-step guide for connecting the power cord to the instrument.

Connecting Measurement Leads to Instrument

Instructions on how to connect measurement leads to the instrument.

Grounding Instrument

Explains the grounding methods for safe operation and accurate measurements.

For Safe Measurement

Highlights safety precautions, including the use of the interlock function.

Turning On/Off Instrument

Inspection Before Use

Basic Measurement

Setting Applied Measurement Voltage

Guides on setting the voltage applied during measurement.

Setting Measurement Speed

Explains how to adjust the measurement speed for optimal accuracy.

Changing Current Range

Connecting Measurement Leads or Electrode to Object to Be Measured

Starting/Stopping Measurement

Covers the procedures for starting and stopping measurements.

Confirming Measurement Results

Applied Measurement

Automatic Inspection (Sequence Program Function)

Setting Voltage Value for Resistance Calculation

Changing Measurement Starting Conditions (Trigger Function)

Maintaining Measurement Accuracy (Self-Calibration Function)

Explains the self-calibration function for maintaining instrument accuracy.

Setting Interlock Function

Details the interlock function for safety, disabling output when a lid is open.

Limiting Current Flowing Through Measured Object (Current Limiter)

Contact Check (Executing Contact Check, Setting Reference Value)

Setting Resistivity Calculation (Resistivity Measurement Function)

Saving and Loading Settings (Panel Saving and Loading)

Saving Settings (Panel Saving Function)

Explains how to save current instrument settings to memory.

Loading Settings (Panel Loading Function)

Describes how to load saved settings from memory.

System Setting

Disabling Key Operation (Key Lock Function)

Browsing, Deleting, and Outputting Internal Memory Data

Checking Voltage Error (Voltage Monitor Check Function)

Monitors internal voltage for errors and displays warnings.

Preventing Test From Being Incorrectly Started (Double Action Function)

Initializing Settings (Reset)

Resets instrument settings to factory defaults.

External Control (EXT I/O)

Switching Current Sink (NPN) / Current Source (PNP)

External Input/Output Terminals and Signals

Details the instrument-side connector and mating connectors.

Settings for External Input and Output

EXT I/O Terminal Input and Output Testing

Communications (USB, RS-232C, GP-IB)

USB Interface

Covers installing USB driver and connecting the instrument via USB.

RS-232C Interface

Details connecting and setting up the RS-232C interface.

GP-IB Interface

Explains connecting and configuring the GP-IB interface.

Settings Common to Interfaces

Control by Using Commands

Specifications

Input/Output/Measurement Specifications

Details basic and accuracy specifications for inputs, outputs, and measurements.

Function specifications

Lists specifications for various instrument functions like measurement speed and trigger.

Interface Specifications

Details specifications for USB, RS-232C, and GP-IB interfaces.

External I/O Specifications

Provides specifications for external input/output signals and functions.

Maintenance and Service

Troubleshooting

Offers solutions to common problems and error messages.

Inspection, Repair and Cleaning

Appendix

Countermeasures Against Noise

Details methods to mitigate induction and conductive noise.

Using Instrument as Ammeter (If Operated in Combination With External Power Supply)

Mounting Instrument in Rack