Masibus LC-12 User manual

User’s Manual
L
LO OO OP P C CA AL LI IB BR RA AT TO OR R
L
LC C- -1 12 2
Masibus Automation & Instrumentation Pvt. Ltd.
B/30, GIDC Electronics Estate,
Sector-25, Gandhinagar-382044, Gujarat, India
[phone] [phone]
Email: [e-mail]
Web: www.masibus.com
Doc. Ref. no.:mM12/om/101 Issue no. 03

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Contents
1. Introduction.....................................................................................................4
Foreword..........................................................................................4
Notice...............................................................................................4
Trademarks......................................................................................4
Safety ...............................................................................................4
General.............................................................................................5
warnings ..........................................................................................5
Electrical warnings..........................................................................5
Cautions...........................................................................................5
Summary of functions.....................................................................6
2. LC-12 Hardware Parts & Accessories....................................................7
2.1 Unpacking & Inspection..........................................................7
2.2 Operational Sections and Connections.................................7
2.2.1 The Terminal Connections ..............................................8
2.2.2 The KeyPad ..................................................................12
2.2.3 The Display...................................................................13
2.2.4 The USB Connection.....................................................13
2.2.5 Stand for Table Top Use ...............................................13
2.3 Power Options.......................................................................14
2.4 Battery....................................................................................14
.................................................................................................14
2.4.1 Charge times.................................................................14
2.4.2 Operating Time ..............................................................15
3. Start Up & Basic Operations ..................................................................16
3.1 Power ON or OFF...................................................................16
3.2 The User Interface.................................................................16
3.2.1 The Status Bar..............................................................18
3.2.2 The Function key Bar....................................................19
3.2.3 Display Mode ................................................................19
3.2.4 Display Operations........................................................23

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4. Menu Layout ................................................................................................28
4.1 MENU page ............................................................................28
4.2 MEASURE Page.....................................................................28
4.2 SOURCE Page .......................................................................30
4.2.1 STEP Page ...................................................................31
4.2.2 RAMP Page ..................................................................33
4.3 DISPLAY Page.................................................................35
4.3.1 Measure Display Settings..............................................35
4.3.2 Source Display Settings ................................................37
4.3.3 Swtich Test Settings......................................................38
4.4 DATA LOGGING Page...........................................................39
4.5 ALARM Page..........................................................................41
4.6 SETTING Page .......................................................................42
4.6.1 HART Settings ..............................................................43
4.6.2 Display Settings ............................................................43
4.6.3 Date/Time Settings........................................................43
4.6.4 Calibration.....................................................................44
4.6.5 Battery Info....................................................................48
4.6.6 Set Password................................................................48
4.6.7 Factory Reset................................................................48
4.6.8 About Calibrator............................................................48
5. Maintenance & Troubleshooting...........................................................49
5.1 Common Problems................................................................49
5.2 Replacing the Battery............................................................49
6. General Specifications.............................................................................50
6.1 General Specifications..........................................................50
6.2 Measurement Parameters and Accuracy.............................51
6.3 Source Accuracy...................................................................51
6.4 Testing Features....................................................................51
6.5 Enclosure Dimensions..........................................................52

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1. Introduction
Foreword
Thank you for purchasing Loop Calibrator LC-12.
The LC-12 calibrator is compact hand-held calibrator
with an easy to use graphical user interface.
This manual describes the basic functions and
operation methods. Please read through this user’s
manual carefully before using the product
Notice
The contents of this manual are subject to change
without notice as a result of continuous
improvements to the instrument’s performance and
functions.
Every effort has been made to ensure accuracy in
the preparation of this manual. Should any errors or
omissions come to your attention, however, please
inform MASIBUS Sales office or sales
representative. Under no circumstances may the
contents of this manual, in part or in whole, be
transcribed or copied without our permission.
Trademarks
The contents of this manual are subject to change
without notice as a result of continuous
improvements to the instrument’s performance and
functions.
Every effort has been made to ensure accuracy in
the preparation of this manual. Should any errors or
omissions come to your attention, however, please
inform MASIBUS Sales office or sales
representative. Under no circumstances may the
contents of this manual, in part or in whole, be
transcribed or copied without our permission.
Safety
Before you use the instrument, make sure that you
read and understand all the related data. This
includes: the applicable local safety procedures, this
publication, and the instructions for the accessories/
options/ equipment you are using it with.

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General
WARNING
warnings
It is dangerous to ignore the specified limits for
the instrument or its related accessories.
Do not use the instrument or accessory if it is not
in its normal condition.
Use the applicable protection and obey all safety
precautions.
Do not use the instrument in locations with
explosive gas, vapor or dust. There is a risk of an
explosion
Electrical
warnings
To prevent electrical shocks or damage to the
instrument, do not connect more than 30V
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. For operating conditions, see section
6.1 on Page-50
To prevent battery leakage or heat generation,
only use the battery charger in the temperature
range 0 to 45°C (32 to 113°F). For operating
conditions, see section 6.1 on Page-50.
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.
Cautions
To prevent damage to the display, do not use sharp
objects on the screen.
Before you start an operation or procedure in this
publication, make sure that you have the necessary
skills (if necessary, with qualifications from an
approved training establishment). Follow good
engineering practice at all times.

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Summary of
functions
This table gives a summary of the available functions
with the LC-12 calibrator.
Function
Easy to read liquid crystal display (LCD) in color
Rechargeable lithium Ion battery with enhanced power
control for prolonged battery life.
* Measure current (mA, mA(24V)), voltage (Volt, mV)
* Supply current (mA, mA(2W)), voltage (Volt, mV)
Step/Ramp functions: Automatic/Manual
Switch test and condition indicator (open/closed)
Universal Serial Bus (USB) communications ports: For
computer communications, & Battery Charging
Data Logging.
Other functions:
Maximum / Minimum / Average, filter, tare, adjustable
backlight, alarm indication (on the display and buzzer),
automatic Display off.

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2. LC-12 Hardware Parts & Accessories
2.1 Unpacking & Inspection
At the factory each new LC12 passes a careful inspection. It should be
free of scrapes and scratches and in proper operation order upon
receipt. The receiver 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 specifications, contact the
purchasing sales office as soon as possible.
The standard accessories are as follows:
Calibration Certificate
User Guide
2 Sets of 2mm to 2mm banana cable.
2 Sets of 2mm Crocodile clips.
2 Sets of connecting plug 4mm to 2mm
USB A Male to USB mini B Male cable for PC communication and
charging.
5 VDC Charging Adaptor
Carrying Bag
LC-12 Configuration & Logging Software CD-mCAL.
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.
2.2Operational 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 LC-12
in this manual) has an example configuration of modules. The
configuration of your LC-12 may vary significantly from the one in the
picture.

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1
Terminal Connection For Measure &
Source
2
Keypad Section
3
Color Display
4
USB Connection Slot for PC
Communication & Charging
2.2.1 The Terminal Connections
Source Terminals
mA
Range: 0.000 –24.000 mA
Resolution: 0.001 mA
mA(2W)
Range: 0.000 –24.000 mA
Resolution: 0.001 mA
mV
Range: 0.00 –250.00 mV
Resolution: 0.01 mV
V
Range: 0.000 –12.000 V
Resolution: 0.001 V

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Current Generation
LC-12 is able to generate current both in source and sink mode.
In source mode LC-12 provides the supply power to the loop.
In sink mode an external power supply is used and LC-12 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
LC-12 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
mA
Range: 0.000 –24.000 mA
Resolution: 0.001 mA
mA(24V)
Range: 0.000 –24.000 mA
Resolution: 0.001 mA

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mV
Range: 0.000 –250.00 mV
Resolution: 0.01 mV
V
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 to 30V in 1V steps
Input impedance : >1MΩ
Current Measurement
LC-12 supports current measurement using either LC-12 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 LC-12 not providing any supply voltage. For
proper measurement the external device should capable of
providing the voltage supply. If the external device should not
capable, an external Power Supply should be connected in
series.

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mA Read Power Current Measurement
In this mode LC-12 works as Loop Power Supply while at the
same time measuring the current.
Voltage Measurement
LC-12 is capable of voltage Measurement with two voltage
measurement ranges.
The following picture displays the connection for Voltage
Measurement for different mode.
Switch Test
LC-12 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 to +30 V.
Switch Mode : 2V(24Vdc,30mA)

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Switch Mode : Voltage Trigger
2.2.2 The KeyPad
LC-12 has six different keys. The key description is given below.
This key has different functionalities in different menu. And that is shown
on Bottom Left Part of Display.
This key has different functionalities in different menu. And that is shown
on Bottom Right Part of Display.
This key is use to scroll down to the next parameter. And also for
decrementing the value of digit in Editbox.
This key is use to scroll up to the previous parameter. And also for
incrementing the value of digit in Editbox.
This Key is use for Entering into the MENU Page from Run Page.
And Also for Saving Edited Parameter to the memory.
This key is use to log current reading in memory if device is on Run Page
& Log Mode is Manual. (In other Page than Run Mode, this key is use to
come directly to Run Page.
Long presses (Approx 2 Sec) on this key will ON-OFF the Unit.

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2.2.3 The Display
This is a LCD with a 2.4” color display.
The display has resolution of 240x320
pixels supporting 262K colors
Refer section 3.2.3 on Page-19 or more
detail
2.2.4 The USB Connection
The USB Connection Connector is given at Top of
the LC-12. It’s a USB mini B-Type Female
Connector.
It is common for PC Communication & Charging the
device.
The USB cable given with the device is USB A-type
Male to USB B-type male. It’s common for
connecting Charger & PC.
2.2.5 Stand for Table Top Use
This Stand would offer the best support for table top use which
gives good viewing angle when UC12 is placed table top
Procedure to Open Stand
ois being engraved on the top of the
stand. You should pull a bit first.
ois 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.

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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.
2.4Battery
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. For operating conditions, see
section 6.1 on Page-50.
To prevent an explosion or fire, use only the
Masibus specified battery, battery charger &
USB Cable.
To prevent battery leakage or heat
generation, only use the battery charger in
the temperature range 0 to 45°C (32 to
113°F). For operating conditions, see section
6.1 on Page-50.
When you set the power on, the battery symbol at
the top of the display shows the charge Status. To
get more information on Battery go to Battery Info
Page in Setting Menu.
.
2.4.1 Charge times
\Charge Method
Charge Time (to Full Capacity)
External Charging
Adaptor
≈ 5 hours
USB mini Type B
connector
≈ 6 hours (with 500mA Supply)
(When device is Off)

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Note:
USB mini Type B connector charges the battery
when the instrument is off and increases the battery
life when the instrument is on.
2.4.2 Operating Time
Operation
Battery Duration
Continuous operation (measure)
> 18 hours
Continuous operation (measure and
source(@12mA))
> 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 save options: To get the best battery duration,
set a low value for the 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 24V transmitter supply affect the maximum
operating time.
Notes:
LC-12’s memory and the internal clock/calendar use a
small amount of power although the calibrator is
switched off. Remember to check the capacity of the
batteries from time to time although LC-12 is not in use.
Do not leave LC-12 without a Battery Pack or an Empty
Battery for a long time. LC-12 may lose its settings if it is
left without a support voltage for an extended period.

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3. Start Up & Basic Operations
3.1 Power ON or OFF
To set the instrument power ON, press and release this
button down until the display comes on. During the
power on sequence, the instrument shows a Startup
Message and then shows the applicable data.
To set the instrument power off, press and hold (≈ 2
seconds) this button again. When the power is off, the
last set of configuration options stays in memory
3.2 The User Interface
Every time LC-12 is switched on, the startup message ends in RUN
Page.
There are 4 Display Mode available in RUN Page.
1. Measure + Source
2. Measure Only
3. Source Only
4. Switch Test + Source
This Display Mode can be selected from MENU DISPLAY Page.
In case of Dual Mode Display Screen is divided into two parts. Due to
that only few additional info will appear on RUN Page. But Which
Information to be shows can be selectable in Display Mode Menu. Refer
Section 3.2.3 on Page-19 for more info.

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All possible elements are not included in the previous picture, but the
important ones are discussed in the following chapters.

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3.2.1 The Status Bar
The Status Bar at the top of the display is visible only in
RUN Page. It is divided into four main sections.
1
Time in HH:MM:SS Format
Available in Two Format
1. 24 Hour (default)
2. 12 Hour
This setting is available in Date/Time in Settings Menu
2
Error Code Indicator
This Icon is visible if any On-Board Peripherals like RTC, ADC, DAC, etc
not working Properly. Refer Section 5.1 on Page 49 for Troubleshooting
these Errors.
The List of Error Code available in this device is given below.
Error Code
Description
0
Memory Corrupted or Device Unable to
Read/Write it.
1
RTC Not working Properly
2
Device unable to Read battery Information.
3
Measure Mode Not Working
4
Device unable to get Source Feedback
Reading.
5
Data Log Memory Corrupt
6
Source Mode Not Working
9
More than one Errors from above list is
occurring.
3
USB Connection Status Icon
Icon is visible if USB Charger Adaptor or USB Data Cable is connected to
the Device. Icon is different for both indication & this stated below.
USB Data Cable is connected & Communication
with PC is available.
USB Charger Adaptor is connected.
Battery starts Charging.
4
Battery Charge Percentage Indicator.
Always visible in Run page. Battery % is shown in the centre of the icon.
And the icon background is filled with Green, Yellow & Red color if
Battery % is >= 50%, >= 20 & <20 respectively.
5
Data Logging Enable Status Indicator.
Icon is visible if Data Logging is enabled and also it will blink when a
Datalog is stored to memory.

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3.2.2 The Function key Bar
The Function Key Bar at the bottom of the display is
visible all the time. There are 2 Function Key Available.
The meaning of the Function Keys varies depending on
the situation. A Blank Function key text means that the
function is disabled at the moment.
3.2.3 Display Mode
1. Measure + Source
Measure Window
Input Type
The Input Type.
mA
mA Current Input
mA(24V)
mA Current (Read Power-24V) Input
mV
mV Voltage Input
V
V Voltage Input
Measure Display Mode
The Measure Reading Display Mode.
Actual
Displays the Raw Input Value without any
scaling
Percentage
Displays the Percentage Value in (0.00% -
100.00%)
Scaled
Displays the Scaled Value
Measure Reading
The Reading as per the Measure Display Mode
Measure Info 1
Shows the One of the available Addition Information.
This can be selected by Additional Info. 1 List in
MENU DISPLAY MEASURE page.

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Measure Info 2
Shows the One of the available Addition Information.
This can be selected by Additional Info. 2 List in
MENU DISPLAY MEASURE page.
This will disable if Bargraph is selected as Additional Info1 in
MENU DISPLAY MEASURE page.
HART Icon
HART Enable Status Icon.
This icon will appear if HART is enabled from
MENU SETTING HART page. (This icon is visible for
mA(24V) Input Type only. For other Input Types this will
invisible regardless of HART settings)
Source Window
Output Type
The Output Type.
mA
mA Current Output
mA(2W)
mA Current (2-Wire Simulation) Output
mV
mV Voltage Output
V
V Voltage Output
Source Display Mode
The Source Reading Display Mode.
Actual
Displays the Raw Output Value without any
scaling
Percentage
Displays the Percentage Value in (0.00% -
100.00%)
Scaled
Displays the Scaled Value
Source Reading
The Reading as per the Source Display Mode
Source Feedback
Reading
The Feedback ADC Reading in Output Unit.
This will disable if Bargraph is selected as Additional Info1 in
MENU DISPLAY SOURCE page.
Source Info1
Shows the One of the available Addition Information.
This can be selected by Additional Info. 1 List in
MENU DISPLAY SOURCE page.
STEP/RAMP Icon
Shows the Icon indicating STEP/RAMP mode.
Manual Step
Rising Ramp
Step UP
Falling Ramp
Step DOWN
Ramp Hold
@ 0%
Ramp Hold
@ 100%