PCE Instruments PCE-LOC 20 Manual de usuario

PCE-LOC 20 Loop Calibrator

PCE-LOC 20

User manuals in various languages (français,

italiano, español, português, nederlands, türk, polski,

русский, 中文) can be found by using our

product search on: www.pce-instruments.com

Last change: 10 August 2018

v1.0

English

Contents

1Safety notes........................................................................................... 1

2PCE-LOC 20 Hardware Parts and Accessories..................................2

2.1 Unpacking and Inspection................................................................................................ 2

2.2 Operational Sections and Connections............................................................................. 3

2.3 Power Options.................................................................................................................. 8

2.4 Battery ............................................................................................................................. 8

3Start Up and Basic Operations............................................................9

3.1 Power ON or OFF ............................................................................................................ 9

3.2 User Interface .................................................................................................................. 9

4Menu Layout........................................................................................20

4.1 MENU page ....................................................................................................................20

4.2 MEASURE Page.............................................................................................................20

4.3 SOURCE Page ...............................................................................................................22

4.4 DISPLAY Page................................................................................................................27

4.5 DATA LOGGING Page....................................................................................................33

4.6 ALARM Page..................................................................................................................35

4.7 SETTING Page...............................................................................................................37

5Maintenance and Troubleshooting ................................................... 39

5.1 Common Problems .........................................................................................................39

5.2 Replacing the Battery......................................................................................................40

6Technical Specifications....................................................................40

7Warranty...............................................................................................42

8Disposal ...............................................................................................42

1 Safety notes

Please read this manual carefully and completely before you use the device for the first time. The

device may only be used by qualified personnel and repaired by PCE Instruments personnel.

Damage or injuries caused by non-observance of the manual are excluded from our liability and

not covered by our warranty.

•The devicemust only be used as described inthis instruction manual.If used otherwise,

this can cause dangerous situations for the user and damage to the meter.

•The instrument may only be used if the environmental conditions (temperature, relative

humidity, …) are within the ranges stated in the technical specifications. Do not expose

the device to extreme temperatures, direct sunlight, extreme humidity or moisture.

•Do not expose the device to shocks or strong vibrations.

•The case should only be opened by qualified PCE Instruments personnel.

•Never use the instrument when your hands are wet.

•You must not make any technical changes to the device.

•The appliance should only be cleaned with a damp cloth. Use only pH-neutral cleaner,

no abrasives or solvents.

•The device must only be used with accessories from PCE Instruments or equivalent.

•Before each use, inspect the case for visible damage. If any damage is visible, do not

use the device.

•Do not use the instrument in explosive atmospheres.

•The measurement range as stated in the specifications must not be exceeded under

any circumstances.

•To prevent electrical shocks or damage to the instrument, do not connect more than 30

V between the terminals, or between the terminals and the ground.

•This instrument uses a Lithium-Ion battery pack. To prevent an explosion or fire, do not

short circuit, do not disassemble and keep it safe from damage.

•To prevent battery leakage or heat generation, only use the battery charger in the

temperature range 0 …45 °C (32 …113 °F).

•To make sure the display shows the correct data, disconnect the test leads before you

set the power to on or change to another measure or source function.

•To prevent damage to the display, do not use sharp objects on the screen.

•Only sufficiently skilled persons may use the meter. Qualifications from an approved

training establishment may be necessary.

•Follow good engineering practice at all times.

•Non-observance of the safety notes can cause damage to the device and injuries to

the user.

We do not assume liability for printing errors or any other mistakes in this manual.

We expressly point to our general guarantee terms which can be found in our general terms of

business.

If you have any questions please contact PCE Instruments. The contact details can be found at

the end of this manual.

2 PCE-LOC 20 Hardware Parts and Accessories

2.1 Unpacking and Inspection

At the factory each new PCE-LOC 20 passes a careful inspection. It should be free of scrapes

and scratches and in proper operation order upon receipt. The recipient should, however, inspect

the unit for any damage that may have occurred during transit. If there are signs of obvious

mechanical damage, package contents are incomplete, or the instrument does not operate

according to its specifications, please contact PCE Instruments as soon as possible.

Delivery contents:

1 x Calibrator PCE-LOC 20

2 x Laboratory cables with 2 mm plug

2 x Adapter 2 mm on 4 mm laboratory cable

2 x Alligator clips

1 x Mini USB cable

1 x Power supply 5V / 1 A

1 x Carrying bag

1 x User manual

The software can be downloaded here: https://www.pce-instruments.com/english/download-

win_4.htm

If you have to return the instrument to the factory for any reason, use the original packing

whenever possible. Include a detailed description of the reason for the return, templates are

available from PCE Instruments.

2.2 Operational Sections and Connections

All sections and connections are presented in detail on the next pages.

Note: Keep in mind that the next picture (as well as all pictures of PCE-LOC 20 in this manual)

has an example configuration of modules. The configuration of your PCE-LOC 20 may vary

significantly from the one in the picture.

1 Terminal Connection for Measure and Source

2 Keypad Section

3 Color Display

4 USB Connection Slot for PC Communication

and

Charging

Terminal Connections

Source Terminals

Range: 0.000 …24.000 mA

Resolution: 0.001 mA

mA(2W)

Range: 0.000 …24.000 mA

Resolution: 0.001 mA

Range: 0.00 …250.00 mV

Resolution: 0.01 mV

Range: 0.000 …12.000 V

Resolution: 0.001 V

Current Generation

The PCE-LOC 20 is able to generate current both in source and sink mode. In source mode, the

PCE-LOC 20 provides the supply power to the loop. In sink mode, an external power supply is

used and the PCE-LOC 20 controls the current flow.

The following picture displays the connection for current source for different mode.

mA Current Source

mA 2-Wire Simulation

Voltage Generation

The PCE-LOC 20 is capable of voltage generation with two voltage generation ranges.

The following picture displays the connection for voltage source for both mV & V Output Type.

Measure Terminal

Range: 0.000 …24.000 mA

Resolution: 0.001 mA

mA(24V)

Range: 0.000 …24.000 mA

Resolution: 0.001 mA

Range: 0.000 …250.00 mV

Resolution: 0.01 mV

Range: 0.000 …30.000 V

Resolution: 0.001 V

Switch

Test

Potential free contacts

Trigger level: 24V, 24mA (2V)

Voltage level detection

Trigger level: 0 …30V in 1V steps

Input impedance: >1MΩ

Current Measurement

The PCE-LOC 20 supports current measurement using either PCE-LOC 20 as the loop power

supply while at the same time measuring the current or simply measuring the current while an

external power supply is used.

The following picture displays the connection for Current Measurement for different mode. And

also different ways of providing the supply power to the loop.

mA Current Measurement

In this mode, the PCE-LOC 20 is not providing any supply voltage. For proper measurement, the

external device should be capable of providing the voltage supply. If the external device is not

capable, an external Power Supply should be connected in series.

mA Read Power Current Measurement

In this mode, the PCE-LOC 20 works as a Loop Power Supply while at the same time measuring

the current.

Voltage Measurement

The PCE-LOC 20 is capable of voltage Measurement with two voltage measurement ranges.

The following picture displays the connection for Voltage Measurement for different mode.

Switch Test

The PCE-LOC 20 is capable of detecting switch’s state both when the switch is free of external

potential or switches with DC voltages within the range 0 V …+30 V.

Switch Mode: 2V (24VDC, 30mA)

Switch Mode: Voltage Trigger

KeyPad

The PCE-LOC 20 has six different keys. The key description is given below.

This key has different functionalities in different menus.

These are shown in the bottom left part of the display.

This key has different functionalities in different menus.

These are shown in the bottom left part of the display.

- Scroll down to next parameter

- Decrease value of digit in Editbox

- Scroll down to previous parameter

- Increase value of digit in Editbox

- Enter menu when in Run mode

- Save edited parameter to memory

- Log current reading in memory if device is in Run modeand logmode

is manual

- When not in Run mode, this key is used to enter Run mode

- Press and hold (approx. 2 s) to turn meter on/off

Display

•LCD with a 2.4” color display

•Resolution of 240x320 pixels

•Supporting 262K colors

USB Connection

•The USB connection is located at the top of the PCE-LOC 20. It is a USB mini B-Type female

connector.

•It can be used for PC communication and for charging the device.

•The USB cable supplied with the device is USB A-type male to USB B-type male. It is used

for connecting charger and PC.

Stand for Table Top Use

•This stand offers the best support for table top use which gives good viewing angle when

the PCE-LOC 20 is placed on a table.

•Procedure to open stand:

is being engraved on the top of the stand.

You should pull a bit first.

is being engraved on the bottom of the

stand. Now during first pull of above you

can release this lower part easily so that you

can

maneuver the stand as you like.

2.3 Power Options

There are three power options:

•Lithium-Ion battery: All the instrument functions are available with a charged battery.

•5 V DC charging adaptor: It supplies power to the instrument and charges the battery at the

same time. It charges the battery when the instrument is on or off.

•USB mini Type B connection: This charges the battery when the instrument is off and

increases the battery life when the instrument is on.

2.4 Battery

The Device uses 2300mAh Lithium-Ion battery.

WARNING

•To prevent an explosion or fire, do not short circuit, do not disassemble, and keep it safe

from damage.

•To prevent an explosionor fire, use only the suppliedbattery, battery charger andUSB cable.

•To prevent battery leakage or heat generation, only use the battery charger in the

temperature range 0 …45 °C (32 …113 °F).

When you set the power on, the battery symbol at the top of the display shows the charging status.

To get more information on the battery, go to the Battery Info Page in the Setting menu.

Charging time

Charging method

Charging time (to full capacity)

External charging adaptor

≈ 5 hours

USB mini Type B connector

≈ 6 hours (with 500 mA supply)

(When device is Off)

Operating time

Operation

Battery duration

Continuous operation (measure)

>18 hours

Continuous operation (measure and source (@12 mA))

>8 hours

These are typical operating times for a new, fully charged Li-Ion battery pack with these settings:

•Backlight Intensity set to 5 % (Default: 100 %)

•Backlight Timeout set to 0 (0=Infinite) (Default: 0)

Power saving options: To get the best battery duration, set a lowvalue forthe Backlight Intensity

(40 %) and a short Timeout. The maximum operating time without recharging varies depending

on the usage and brightness setting of the display light. Also the generated output current and

the usage of the 24 V transmitter supply affect the maximum operating time.

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