Unit UT712 Manuel utilisateur

Table of Contents

Title Page

Introduction

Safety Information

The Calibrator Structure

LCD Display

Turning the Calibrator On

Measuring DC Volts (V and COM jack)

Sourcing DC Volts (V and COM jack)

Measuring DC mA (mA and COM jack)

Measuring DC mA with Loop Power (LOOP and mA jack)

Using the Current Output Modes

Sourcing mA

Simulating a Transmitter

Maintenance

In Case of Difficulty

Cleaning

Calibration

Replacing the Fuses

Model UT712: Users Manual

Title Page

Replacing the Battery

Specifications

DC Voltage and DC Current Input

DC Voltage and DC Current Output

General Specifications

Model UT712: OPERATING MANUAL

Introduction

The Uni-Trend UT712 Volt/mA Calibrator is a source and measurement tool for 0 to

20mA current loop testing and DC Voltage from 0 to 20V. The calibrator does not

source and measure simultaneously.

Your calibrator has a unique design and large LCD can read the data clearly.

Your calibrator is supplied with the following:

User Manual

Test Leads

Alligator Clip

Carrying Bag

9V alkaline battery (ANSI/NEDA 1604A or IEC 6LR61)

1 piece

1 set

1 piece

If the calibrator is damaged or something is missing, contact the place of purchase

immediately.

Model UT712: OPERATING MANUAL

International Symbols

Symbol Meaning

Earth ground

Refer to this user manual for information about this feature.

Battery

Double insulated

Conforms to European Union directives.

Safety Information

Use the calibrator only as specified in this user manual, otherwise the protection

provided by the calibrator may be impaired.

A Warning identified conditions and actions that pose hazard(s) to her user.

Model UT712: OPERATING MANUAL

Warning

To avoid possible electric shock or personal injury:

Never apply more than 30V between any two jacks (terminals), or between

any jack and earth ground.

Make sure the battery door is closed before you operate the calibrator.

Remove test leads from the calibrator before you open the battery door.

Do not operate calibrator if it is damged.

Do not use or store the calibrator in an environment of high temperature,

humidity, explosive, inflammable and strong magnetic field. The performance

of the Meter may deteriorate after dampened.

When servicing the calibrator, use only specified replacement parts.

Use the proper jacks, function, and range for your measurementt or output

application.

To avoid false readings, which could lead to possible electric shock or

personal injury, replace the battery as soon as the battery indicator ( )

appears.

Turn the calibrator off when it is not in use and take out the battery when

not using for a long time.

Model UT712: OPERATING MANUAL

Constantly check the battery as it may leak when it has not been using for

some time, replace the battery as soon as leaking appears. A leaking

battery will damage the calibrator.

The internal circuit of the calibrator shall not be altered at will to avoid

damage of the calibrator and any acccident.

When the calibator is off, the jacks cannot connect to any loading or they

must not be short circuit between jacks.

When the calibrator is carrying out measurment, do not contact any bare

cable, connector, used jacks or the circuit under test.

Model UT712: OPERATING MANUAL

The Calibrator Structure

LCD Display

INPUT Button

Press and to change

the cursor location.

Press and to scroll

up/down. Hold down to

scroll faster.

Press to select mA

measurement

Press to select V

measurement

Press to select mV

measurement

Output/Input Jacks

Figure 1

Model UT712: OPERATING MANUAL

The calibrator is in output mode

The calibrator is in input mode

The measurement unit of the current reading

Battery is low. Replace the battery

The current cursor location

OUTPUT

INPUT

mV, V, mA

Figure 2

Model UT712: OPERATING MANUAL

Turning the Calibrator On

Press the yellow pushbutton to turn the calibrator on and off. Turn off the calibrator

when not in use.

Measuring DC Volts (V and COM jack)

Figure 3

1.Press to turn the

calibrator on and off

2.Press so that INPUT

is on the display

4.Insert the test leads

as shown

INPUT

mV or V depending on

range

3.Press to toggle mV

and V ranges

Model UT712: OPERATING MANUAL

Sourcing DC Volts (V and COM jack)

OUTPUT

2.Press so that

OUTPUT is on the

display

1.Press to turn the

calibrator on and off

4.Insert the test leads

as shown

The current cursor

location

mV or V depending

on range

3.Press to toggle mV

and V ranges

Press and to

change the cursor

location.

Press and to scroll

up/down. Hold down

to scroll faster.

Figure 4

Model UT712: OPERATING MANUAL

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