Time Electronics 7006 Manual de usuario

User Manual

7006 Loop-Mate 1

Loop/Current/Voltage Simulator

Version 1.1

March 2021

Time Electronics Ltd

Unit 5, TON Business Park, 2-8 Morley Road,

Tonbridge, Kent, TN9 1RA, United Kingdom.

T: +44 (0) 1732 355993 | F: +44 (0) 1732 350198

mail@timeelectronics.co.uk | www.timeelectronics.com

Nothing from this manual may be multiplied, or made public in any form or manner, either

electronically or hard copy, without prior written consent from Time Electronics Ltd.

This also applies to any schematics, drawings and diagrams contained herein.

This manual provides operating and safety instructions for the Time Electronics product.

To ensure correct operation and safety, please follow the instructions in this manual.

Time Electronics reserves the right to change the contents, specifications and other

information contained in this manual without notice.

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Contents

1Introduction....................................................................................................................................4

1.1 Features ................................................................................................................................................ 4

1.2 Description.............................................................................................................................................5

1.3 Specifications ........................................................................................................................................6

2Front panel controls......................................................................................................................7

3Operation........................................................................................................................................8

3.1 Function Select......................................................................................................................................8

3.2 Description of typical process loop components....................................................................................8

3.3 RxTest function 4 - 20 mA ...................................................................................................................10

3.4 TxSim function 4 - 20 mA (Current Sink) ............................................................................................ 11

3.5 10vSim function 0 - 10V ...................................................................................................................... 12

4Additional Features ..................................................................................................................... 13

4.1 Auto Step.............................................................................................................................................13

4.2 Audio (Beeping)...................................................................................................................................13

4.3 Automatic power down ........................................................................................................................ 13

5Loop Error Indication ..................................................................................................................14

5.1 Error display on the Loop-Mate1 ......................................................................................................... 14

6Power supply ...............................................................................................................................15

6.1 Battery life............................................................................................................................................ 15

6.2 Battery replacement ............................................................................................................................ 15

7Maintenance................................................................................................................................. 16

7.1 Calibration ...........................................................................................................................................16

7.2 Adjustment of Calibration .................................................................................................................... 18

8Warranty and Servicing............................................................................................................... 21

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1Introduction

1.1 Features

•Simple operation, pocket sized loop diagnostic tool

•Simulate process loop signals for current and voltage

•4 - 20 mA or 0 - 10 V loops

•7 calibration set-points

•Transmitter simulation and receiver test

•Auto-Step output - adjustable rate

•Battery powered PP3

•Internal loop drive supply

•Supplied with carry case and test leads

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1.2 Description

The 7006 Loop-Mate1 provides both 4 - 20 mA and 0 - 10V process loop compatible signals.

It simulates a transmitter and allows testing and calibration of process signal indicators and

controllers.

To assist the operator it emits an audible beep for every change in output. This increases in

frequency as the signal level increases.

For hands-free operation, the Auto Step mode can be selected and this automatically steps

the signal through the span. The operator can then leave the Loop-Mate 1 connected while

moving to another location to check the signal is arriving correctly.

In addition to TxSim (transmitter simulation) and 10vSim, the Loop-Mate 1 can also provide

the loop drive supply that allows an RxTest function (indicator/controller test) without the

need for the external excitation power supply.

The instrument is powered by a single PP3 battery. An Auto-power down feature, which can

be disabled, ensures fewer battery changes. Rechargeable batteries can be used if required.

The 7006 is a useful and practical tool for process, service and maintenance engineers.

It provides a compact and simple operation solution with 0.1% accuracy, making it suitable

for most process loop calibration and diagnostics applications.

It comes complete with carrying pouch, leads, clips and user manual.

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1.3 Specifications

Functions RxTest, TxSim, 10vSim.

Ranges 4 - 20mA, 0 - 10V DC (Max current 20mA).

Set Points 7 Points: 0% (4mA or 0V), 10% (5.6mA or 1V), 25% (8mA or 2.5V),

50% (12mA or 5V), 75% (16mA or 7.5V), 90% (18.4mA or 9V), 100% (20mA or 10V).

Accuracy 0.1% of span.

Indication High brightness LEDs.

Control UP/DOWN buttons, function select switch, auto-step select button.

Auto Step Automatic Up/Down step through the set points.

Step Rates Selectable 0.5, 1, 2, 4 or 8 steps per second.

Dwell Time At top (100%) and bottom (0%), twice the step time.

Beeping A beep is sounded with increasing frequency for each step.

This feature can be disabled if required.

Error Indicator for

faulty loop conditions

TxSim: Loop open circuit or loop resistance too high.

RxTest: Inadequate loop excitation supply.

10vSim: Loop short or loop resistance too low.

Connections Two 4mm recessed sockets.

Power PP3 battery. Note that an auto power down feature can be disabled if required.

Carrying Pouch Leatherette material. Includes compartment for leads and spare battery.

Leads 4mm gold plated connectors with crocodile clips.

Temperature Co-efficient The unit stays in specification over operating temperature range.

Operating Temperature -5 to 50 °C.

Storage Temperature -30 to 70 °C.

Operating Humidity 10 to 90% non-condensing, 25 °C.

Dimensions H 140 x W 65 x D 27 mm (6.0 ×2.5 ×1.0 in).

Weight 280 grams (10 oz).

Options

C145: Traceable calibration certificate (Factory).

C144: Accredited calibration certificate (ISO 17025).

7007: Loop-Mate 2: Loop Signal Indicator (separate product).

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2Front panel controls

Output Terminals

Function Switch

Auto Step Button

Up / Down

Control Buttons

Power / Error LED

Output LED

Indicators

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3Operation

3.1 Function Select

The Loop-Mate 1 has 3 functions:

1. Function 1 ..................Rx TEST (4-20 mA)

2. Function 2 ..................Tx SIM (4-20 mA)

3. Function 3 ..................0-10 v dc SIM

These are selected using the function select switch. Function 2 acts as a current sink only

when an external loop excitation supply is connected.

3.2 Description of typical process loop components

4 - 20 mA process loop

0 - 10 V process loop

4-20 mA Process loop

and

4 - 20 mA Control loop.

This can be used for

closed loop control.

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Tx (transmitter):

This component converts physical signals such as pressure, temperature, flow, and level

etc, into the loop signals (4 - 20 mA or 0 - 10 V).

Rx (receiver):

This component measures the loop signal and either displays it (indicator) or converts it to

another form e.g. digital output for control purposes, (controller).

Process Controllers:

This device usually contains both Rx (signal loop) and Tx (control loop) components, which

operate in separate loops. The Rx and Tx can be either 4 - 20 mA or 0 - 10 V.

Loop excitation supply:

A DC power supply (nominally 24 V) that drives the loop.

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3.3 RxTest function 4 - 20 mA

The unit can provide current output from 4-20 mA with an internally generated loop excitation

drive capability. There are seven output set-points over the span. They are indicated on the

front panel in both ‘percentage of the span’ and actual mA. An illuminated LED indicates

which point is selected. The UP/DOWN buttons can be used to change the set-point.

The set-points are:

3.3.1 Operation

1. Set the function switch to RxTest.

2. Connect the unit to the process indicator or controller (Rx) observing correct polarity.

3. Turn on the unit by pressing the Down arrow button.

4. Set the required set-point by repeatedly pressing the Arrow keys. The indicator LED

will show which set-point is selected.

3.3.2 Connection

(Indicator)

+ve

-ve

Loop-Mate1

under test

(Rx Test function)

Note: The total loop resistance of the Rx indicator plus lead connector should not exceed 600 Ω

Percentage of Span

Current

0 %

4 mA

10 %

5.6 mA

25 %

8 mA

50 %

12 mA

75 %

16 mA

90 % 18.4 mA

100 % 20 mA

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