Time Electronics 7006 User manual

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: [phone] | F: [phone]
[e-mail] | www.timeelectronics.com

© 2021 Time Electronics Ltd.
All rights reserved.
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.

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 3 of 22
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

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 4 of 22
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

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 5 of 22
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.

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 6 of 22
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).

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 7 of 22
2Front panel controls
Output Terminals
Function Switch
Auto Step Button
Up / Down
Control Buttons
Power / Error LED
Output LED
Indicators

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 8 of 22
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.

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 9 of 22
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.

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 10 of 22
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
Rx (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

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 11 of 22
3.4 TxSim function 4 - 20 mA (Current Sink)
Using the TxSim function the unit takes its excitation power from the loop and acts as a
current sink. The excitation supply voltage must be in the range 5 to 50 volts DC.
Warning: Do not attach the excitation supply to the terminals of the Loop-Mate1 when TxSim is not selected.
The user can set the loop current to one of seven set-points. They are indicated on the front
panel in both ‘percentage of span’ and actual mA. The Up/Down buttons can be used to
change the set-point.
The set-points are:
3.4.1 Operation
1. Set the function switch to TxSim.
2. Connect the unit to the loop excitation supply and 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 pressing the Arrow keys. The indicator LED will show
which set-point is selected.
3.4.2 Connection
Note: The total loop resistance including connections 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

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 12 of 22
3.5 10vSim function 0 - 10V
The unit outputs voltage in the range of 0 to 10 V. There are seven set-points. The selected
set-point is indicated on the front panel in both ‘percentage of span’ and actual volts.
The UP/DOWN buttons can be used to change the set-point.
The set-points are:
3.5.1 Operation:
•Set function switch to 10vSim (0 - 10 V).
•Connect the unit to the process indicator (or controller) observing correct polarity.
•Turn on the unit by pressing the Down arrow button.
•Select the required set-point by pressing the Arrow keys.
The LED indicator will show which set point is selected.
3.5.2 Connection
Loop-Mate1
0 - 10v
+ve
-ve
0 - 10v signal
Rx (Indicator)
(10vSim)
Percentage of Span
Voltage output
0 %
0 V
10 %
1 V
25 % 2.5 V
50 % 5 V
75 % 7.5 V
90 % 9 V
100 % 10 V

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 13 of 22
4Additional Features
4.1 Auto Step
The Loop-Mate 1 has the ability to automatically step through the set-points, both up and
down. This feature is available for any of the 3 functions (RxTest, TxSim, 10vSim).
Auto Step is enabled by pressing the Auto Step button. To disable it press the button again.
The length of time the output stays on each level can be altered by pressing the UP or
DOWN arrow buttons. The UP shortens the period and the DOWN button increases the
period. The different periods are 0.5, 1, 2, 4 or 8 seconds. When the output reaches the 100
% or 0 % levels, it will dwell (stay) for twice the step period before continuing in the opposite
direction. The unit will continue indefinitely in Auto Step mode until the Auto Step button is
pressed or the unit is turned off.
0% 0%
100%
2t
t
Diagram of Auto Step feature
(t = step period)
In Auto Step mode the indicator LED’s blink at four times the step rate. The stepping
direction can be reversed at any time by pressing the Auto Step button twice.
Audio beeps (if enabled) occur on each step change.
4.2 Audio (Beeping)
The audio beep feature can be toggled on or off by pressing the UP/DOWN arrow keys
simultaneously when powering on the unit. This will power up the unit and change the beep
setting. Switching on the unit normally will not change the beep setting.
4.3 Automatic power down
Auto power down is the default setting. The auto power down feature is incorporated to
prevent the Loop-Mate 1 from being inadvertently left switched on after use and draining the
battery. The unit will automatically power down if no button is pressed for 15 minutes. Auto
power down does not operate when using the auto step mode. The auto power down feature
can be disabled when powering up the unit if required. Instead of momentarily pressing the
DOWN arrow button, hold it down until the 0 % LED comes on (approx 2 seconds).

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 14 of 22
5Loop Error Indication
5.1 Error display on the Loop-Mate1
Loop Error LED
With the RxTest function selected
If the loop is open circuit or resistance too high, the error LED will start flashing. However,
short circuit on the loop is not indicated.
With the TxSim function selected
If the external loop excitation supply voltage is too low, the polarity is not correct, or the loop
open circuit or resistance too high, the error LED will start flashing. However, short circuit on
the loop is not indicated.
With the 10 vSim function selected
If the loop is short circuit, or resistance too low, the error LED and the output LED will both
flash. There is also a warning bleep emitted with every flash of the LED’s. This error is
caused when Loop-Mate1’s current drive capability (20 mA) is exceeded.

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 15 of 22
6Power supply
6.1 Battery life
The unit is powered by a single PP3 battery. Types that can be used are Zinc Carbon
(250 mAh), Alkaline (450 mAh), Lithium (1200 mAh) and rechargeable (150 mAh). For best
performance Lithium batteries are recommended. Under typical usage an Alkaline (450 mA)
battery will last for approximately 15 - 20 hours of continuous operation. Assuming the Loop-
Mate 1 is used for approximately 3 hours per day the batteries will last for a week or more.
Continuous operation on the RxTest function will shorten the battery life. The unit will
automatically power down when the battery voltage is too low. The performance of the unit
will remain within specification until power down occurs. Replacement of the battery is then
necessary. It is recommended that a spare battery be always carried in the compartment
provided in the carrying pouch.
6.2 Battery replacement
Slide off the back cover of the case and remove the battery from its compartment. Unclip the
battery and replace it with a new PP3 as shown below. Then slide the battery cover back
into place.

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 16 of 22
7Maintenance
7.1 Calibration
7.1.1 Calibration equipment required
A bench multimeter with accuracy of 0.02 % or better. Examples of suitable instruments are
Time Electronics’ 5075 or HP 34401A. Calibration should be done at 20 °C ±10 °C.
7.1.2 Calibration (RxTest - Current source)
1. Connect the multimeter to the output terminals of the Loop-Mate 1.
2. Set the function switch to RxTest.
3. Select the most suitable range on the multimeter to measure 20 mA DC.
4. Turn on the Loop-Mate 1.
5. For each set point, check that the output is within specification (see table below).
If a set-point is out of specification then adjustment of the calibration will be required
(see later in this section).
Allowed error specification:
Set-point (mA)
Min value (mA)
Max value (mA)
4
3.984
4.016
5.6
5.584
5.616
8
7.984
8.016
12
11.984
12.016
16
15.984
16.016
18.4
18.384
18.016
20
19.984
20.016

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 17 of 22
7.1.3 Calibration (Voltage)
1. Connect the multimeter to the output terminals of the Loop-Mate 1.
2. Set the function switch to 0 - 10 V DC.
3. Select the most suitable range on the multimeter to measure 10 V DC.
4. Turn on the Loop-Mate 1.
5. For each set-point check if the reading is within specification.
If a set-point is out of specification then adjustment of the calibration is needed (see later in
this section).
Allowed error specification:
Set-point (V) Min value (V) Max value (V)
0 0 0
1 0.99 1.01
2.5 2.49 2.51
5 4.99 5.01
7.5 7.49 7.51
9 8.99 9.01
10 9.99 10.01

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 18 of 22
7.2 Adjustment of Calibration
When Loop-Mate1 is found to be out of specification the procedures described in the
following sections can be followed to adjust and calibrate instrument.
7.2.1 Disassembling Loop-Mate1
1. First remove the battery compartment cover and disconnect the battery, as shown in
section 6.2 of this manual.
2. Remove the 4 screws from the back of the case.
3. Position the Loop-Mate 1 so that the front panel is facing upwards.
4. Carefully lift the case lid and turn it towards the right, take care not to stress the
ribbon cables.
5. Then reconnect the battery.
Ribbon cables

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 19 of 22
7.2.2 Trimmer Locations (used for adjusting the calibration)
7.2.3 RxTest (Current source) Adjustment Calibration
•Connect the multimeter to the output terminals of the Loop-Mate 1.
•Set the function switch to RxTest.
•Select the most suitable range on the multimeter to measure 20 mA DC.
•Turn on the Loop-Mate 1.
•Press the UP arrow until 20 mA output is selected.
•Adjust P2 until the multimeter display reads exactly 20.000 mA
Note: if the full scale of the multimeter being used is 19.999 mA, then use set-point
18.4 mA and adjust P2 until the multimeter reads 18.400 mA.
•Then re-check all the other set-points.
P1 P2

Time Electronics User Manual
7006 Loop-Mate 1 Loop Simulator v1.1
7006 Loop-Mate 1 Loop Simulator Page 20 of 22
7.2.4 10vSim (Voltage) calibration
•Connect the multimeter to the output terminals of the Loop-Mate1.
•Set the function switch to 0 – 10 V DC Sim.
•Select the most suitable range on the multimeter to measure 10 V DC.
•Turn on the Loop-Mate1.
•Press the UP arrow until 10 V output is selected.
•Adjust P1 until the multimeter display reads 10.000 V.
7.2.5 Re-assembly
•Disconnect the battery after re-calibration.
•Refit the lid. Care must be taken to ensure that the ribbon cable linking the two PCB’s
is folded in such a way it won’t get trapped when the lid is screwed into place.
•Replace the lid and screw the four case screws into place.
•Replace the battery and battery compartment cover. See section 6.2.