G-Tek LmNet - PRO 614-00 User manual

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CONTENTS
Contents..................................................................................................................................................1
List of Figures ..................................................................................................................................3
List of Tables ...................................................................................................................................4
Introduction ....................................................................................................................................5
3.1 Manual Layout ........................................................................................................................5
3.2 LmNet Description ..................................................................................................................5
3.3 Optional Features ...................................................................................................................6
3.4 Unpacking and inspection of LmNet.......................................................................................6
Installation ......................................................................................................................................8
Electrical Installation.....................................................................................................................10
5.1 General Information .............................................................................................................10
5.1.1 Wiring Diagram for LmNet............................................................................................12
Operation......................................................................................................................................21
Configuration ................................................................................................................................23
7.1 Authentication Password......................................................................................................23
7.2 Configurable Item .................................................................................................................24
7.3 Functions...............................................................................................................................26
7.3.1 System Setup.................................................................................................................26
7.3.2 Display Setting...............................................................................................................28
7.3.3 RTC ................................................................................................................................30
7.3.4 Store Interval.................................................................................................................31
7.3.5 Alarm On time...............................................................................................................31
7.3.6 Alarm Off time...............................................................................................................32
7.3.7 Channel Scan.................................................................................................................32
7.3.8 Room Temperature.......................................................................................................33
7.3.9 Channel 1 ......................................................................................................................34
7.3.10 Channel 2 ......................................................................................................................41
7.3.11 Channel 3 ......................................................................................................................41
7.3.12 Channel 4 ......................................................................................................................41
7.3.13 IP Reset..........................................................................................................................41
Network ........................................................................................................................................42
8.1 Network Configuration .........................................................................................................42
Troubleshooting Guide .................................................................................................................46

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9.1 Operation Troubleshooting...................................................................................................46
9.1.1 How to turn on the LmNet?..........................................................................................46
9.1.2 What to do if user wants to communicate recorder using TCP/IP? .............................46
9.1.3 How to connect the sensor to be used with the LmNet? .............................................46
9.1.4 Can we connect more than 1 sensor at a time with the LmNet? .................................47
9.1.5 What is procedure if user forgets password?...............................................................47
Standard Accessories ................................................................................................................48
10.1 15 V DC @ 1.2 Amp ADAPTOR ..............................................................................................48
10.2 Ethernet Cable ......................................................................................................................48
Specification..............................................................................................................................49
Ordering Code...........................................................................................................................52

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LIST OF FIGURES
Figure 1 Front View of LmNet.................................................................................................................6
Figure 2 Bottom View of LmNet..............................................................................................................7
Figure 3 LmNet.......................................................................................................................................8
Figure 4 Adaptor .....................................................................................................................................8
Figure 5 LAN Cable and Ethernet Port ....................................................................................................8
Figure 6 LmNet connection with Adaptor and LAN Cable ......................................................................9
Figure 7 Wiring diagram for LmNet ......................................................................................................12
Figure 8 Main Supply Connection.........................................................................................................12
Figure 9 Sensor Wiring..........................................................................................................................14
Figure 10 Sensor Wiring - RTD 3 Wire input .........................................................................................14
Figure 11 Sensor Wiring - RTD 2 Wire Input .........................................................................................15
Figure 12 Sensor Wiring - Thermocouple Input....................................................................................16
Figure 13 Sensor Wiring -m Volt Input..................................................................................................17
Figure 14 Sensor Wiring 4-20 mAmp. / 0-20 mAmp. Input .................................................................18
Figure 15 Connecting LmNet and other instrument with transmitter and External Power Supply .....19
Figure 16 Connecting LmNet with Transmitter and Internal Power Supply.........................................19
Figure 17 Relay......................................................................................................................................20
Figure 18 Ethernet Wiring with LmNet.................................................................................................20
Figure 19 key function ..........................................................................................................................21
Figure 20 Password entry Procedure....................................................................................................23
Figure 21 Main menu display................................................................................................................25
Figure 22 System Setup.........................................................................................................................26
Figure 23 Batch Status ..........................................................................................................................26
Figure 24 Device Address......................................................................................................................27
Figure 25 Memory Setting ....................................................................................................................27
Figure 26 Clear Memory .......................................................................................................................28
Figure 27 Display Setting.......................................................................................................................28
Figure 28 Freeze Panel..........................................................................................................................29
Figure 29 Action (Display).....................................................................................................................29
Figure 30 RTC settings...........................................................................................................................30
Figure 31 Store Interval.........................................................................................................................31
Figure 32 Relay ON time .......................................................................................................................31
Figure 33 Relay OFF time ......................................................................................................................32
Figure 34 Channel Skip..........................................................................................................................32
Figure 35 Room Temperature...............................................................................................................33
Figure 36 Channel Configuration ..........................................................................................................34
Figure 37 RTD Sensor............................................................................................................................35
Figure 38 Sensor Selection....................................................................................................................38
Figure 39 Range Low selection .............................................................................................................38
Figure 40 Span Selection.......................................................................................................................39
Figure 41 Offset Selection.....................................................................................................................39
Figure 42 Multiplier Selection...............................................................................................................39
Figure 43 Resolution Decimal Place......................................................................................................40
Figure 44 Alarm Set point High.............................................................................................................40
Figure 45 Alarm Set Point Low..............................................................................................................41

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Figure 46 IP Reset..................................................................................................................................41
Figure 47 Network Sharing Center........................................................................................................42
Figure 48 Local Area Connection ..........................................................................................................43
Figure 49 Internet Protocol Version 4(TCP/IPv4)..................................................................................43
Figure 50 IP Setting ...............................................................................................................................44
Figure 51 Network Configuration .........................................................................................................44
Figure 52 Network Information ............................................................................................................45
Figure 53 Power on indication on LmNet .............................................................................................46
Figure 54 15 VDC 1.2 Amp Adaptor ......................................................................................................48
Figure 55 Ethernet RJ45 Cable..............................................................................................................48
LIST OF TABLES
Table 1 Manual Layout............................................................................................................................5
Table 2 Configurable Items...................................................................................................................24
Table 3 Device Network Information....................................................................................................42
Table 4 Specification of LmNet .............................................................................................................49
Table 5 Accuracy and Range Table for various sensor inputs...............................................................51
Table 6 LmNet Order Code ...................................................................................................................52

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INTRODUCTION
This manual is written to help the user to familiarize with the installation and operation of the LmNet.
LmNet is designed for reliable and convenient recording of process parameters in production,
Research and Quality control applications. This LmNet is capable of monitoring RTC, Temperature, 4
channels outputs at the scan rate of 1 second for each channel.
3.1MANUAL LAYOUT
This manual is divided into several sections for quick and easy reference.
Table 1 Manual Layout
Section 1 Introduction
This gives outline of the manual, brief description about the LmNet,
Optional features available and how to unpack it.
Section 2 Installation
This section gives the details of the led display and Electrical
installation.
Section 3 Operation
This section gives the details of the front panel display and
keyboard.
Section 4
LmNet Configuration
This section gives the details of various parameter that user can set
using keyboard for proper monitoring requirement.
Section 5 Calibration
This section describes the calibration procedure for the LmNet.
Section 6
Troubleshooting Guide
This section describes about the most frequently asked questions
and their solutions about LmNet.
Section 7 Parameter Setting
This section describes the method of setting various
parameters/programming sequence.
Section 8 Accessories
This section describes the standard accessories for the LmNet.
Section 9 Specification
It describes the detailed specification of the LmNet.
Section 10 Ordering Code
It describes the details of order code and comparing it with the
code on the LmNet, user can find out the installed options.
*Features and capabilities may vary depending upon the product purchased.
3.2LMNET DESCRIPTION
•The LmNet comes with on board Temperature, 4 input channel, LAN port with 2 Inch bright
led display as on customer color requirement. This led display allows user to continuously
monitor the current reading with good readability and setting of configurations. This LmNet
also has 5 multipurpose keys which enables user to easy programming/configure the unit. For
the convenience of the user and to make it cost effective, universal inputs and re-transmission
output are made as an optional feature.

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3.3OPTIONAL FEATURES
Following optional features are available for this LmNet.
•Universal Input
•Re-Transmission Output
•Relay for Buzzer
•Internal Buzzer
It is possible that the LmNet you received may or may not be fitted with the optional features. Please
refer to the product code to know about installed options in your LmNet
3.4UNPACKING AND INSPECTION OF LMNET
G-Tek LmNet are dispatched in a recyclable, environment friendly package specially designed to give
adequate protection during transit. If the outer box shows sign of damage, it should be opened
immediately and the LmNet be examined. If there is evidence of damage, the instrument should not
be operated, and the local representative contacted for instructions. Ensure that all accessories and
documentation is removed from the box. If the LmNet is for immediate use, you can start installing it
now as per following instructions. Please preserve the original packing along with all internal packing
for future transport requirements.
Figure 1 Front View of LmNet
FUNCTION
KEY
DOWN
KEY
UP
KEY
ENTER
KEY
BACK
KEY
ALL LED INDICATION

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Input
Channels
Ethernet
Port
Re-Transmitter
Output
Relay
Main
supply
connector
Figure 2 Bottom View of LmNet

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INSTALLATION
For the installation just connect the LmNet with 15V-30V DC Input adaptor as shown in figure below.
Connect LmNet with LAN cable to connect it with PC for communication using TCP/IP.
Figure 3 LmNet
Figure 4 Adaptor
Figure 5 LAN Cable and Ethernet Port

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Figure 6 LmNet connection with Adaptor and LAN Cable

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ELECTRICAL INSTALLATION
5.1 GENERAL INFORMATION
To comply with Underwriter Laboratories (UL) and Canadian Standards Association (CSA) certification,
route signal leads and power cables in earthed (grounded), flexible metal conduit.
Connect proper Earth to the Earthing terminal of the LmNet.
▪Instruments not fitted with the optional internal on/off switch and fuse must have a
disconnecting device such as a switch or circuit breaker conforming to local safety standards
fitted to the final installation. It must be fitted near the instrument within easy reach of the
operator and must be marked clearly as the disconnection device for the instrument.
▪Remove all power from supply, relay and any powered control circuits and high common
mode voltages before accessing or making any connections.
▪Use cable appropriate for the load currents. The terminals accept cables up to 14AWG
(2.5mm1).
▪The instrument and all inputs and outputs conform to Mains Power Input Insulation Category
ll.
▪All connections to secondary circuits must have basic insulation.
▪After installation, there must be no access to live parts e.g., terminals.
▪Terminals for external circuits are for use only with equipment with no accessible live parts.
▪If the instrument is used in a manner not specified by the Company, the protection provided
by the equipment may be impaired.
▪All equipment connected to the instrument's terminals must comply with local safety
standards (IEC 60950, EN601010-1).
NOTE:
To ensure maximum LmNet performance, proper wiring installation practices must be followed.
Failure to do so can result in a range of problems, from loss of configuration to component failure,
caused by transmitted or radiated electrical noise. Proper consideration must be given to local noise
sources and appropriate suppression steps taken to minimize any potential problems. Among the
most common sources of noise are: Relays, SCRs, valve solenoids, electric motors, power line
disturbance, wire-to-wire coupling, electrostatic discharge (ESD) and radio-frequency interference
(RFI).

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To achieve the best results, the following notes should be considered:
1. Low level signal wiring such as that associated with thermocouples, RTDs and current loops
should always be kept separate from power and control output wiring.
2. Signal input wiring should be twisted pairs/triplets etc. The conductors should be stranded
rather than solid in construction. All signal wiring should use ground-shielded wires or be
routed through grounded conduit to minimize the effects of RFI and ESD.
3. Special care should be taken when wiring to relay or solenoid coils, as large transients are
produced when coils (or any other inductive loads like motors or arc welding equipment’s etc.)
are switched. This problem can be eliminated using suitable suppression devices across the
coil. Coil transients can also be transmitted through the air, so the recorder itself should be
mounted as far as possible from power control devices and/or wiring.
4. When line power is poorly regulated and / or subject to voltage surges or transients,
consideration should be given to the use of a line conditioning/transient suppressing line
power regulator. Process control motors, valves, relays, and heaters should not be connected
to the same power lines that are used for instrumentation.
5. The connection of the LmNet to a proper safety earth ground is essential. Such a connection
not only reduces the possibility of electric shock, but also provides the required return for the
LmNet line power filters.
6. All local electrical codes of practice must be followed when installing any instrumentation.
Check for proper Earthing:
Proper Earthing is necessary for best performance of the LmNet. Follow the steps mentioned below
to check whether the earthing given to the LmNet is proper or not:
▪Find out the Phase line of connection with the help of “Tester with Neon Lamp.” When Neon
Lamp glows, it is an indication of the phase line.
▪Once Phase is found, the other hole which is in line of phase is the Neutral line.
▪The third hole which is apparently bigger in diameter is the Earthing line.
▪Now take the voltmeter with appropriate measurement range (normally 750VAC or higher)
and put the probes into PHASE and NEUTRAL line and take reading.
▪The voltage across PHASE and EARTH, and NEUTRAL and EARTH.
▪The voltage between Neutral and Earth Should not be more than 6V. If by any chance it is
more than 30V, it is a serious fault on earth line. And must immediately be corrected.
Proper Earthing is essential for safety of the personnel and for the proper functioning of the
equipment.
Note: If connecting the instrument in the panel, panel and LmNet both should be at the same earthing
potential.

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5.1.1 Wiring Diagram for LmNet
See the bottom panel of the LmNet, you will find all the connectors for wiring. As shown in the
following figure.
Figure 7 Wiring diagram for LmNet
5.1.1.1 Mains Supply Connection
The connection for Mains supply is shown in figure 8. As per figure one end of the adaptor connected
to mains connector. Ensure that the end of adaptor is fully inserted into the mains connector and no
loose/poor connection.
Figure 8 Main Supply Connection
Mains
Connector
jack
15-30 V DC 1.2 Amp
Adaptor

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5.1.1.2 Sensor Wiring
To ensure maximum LmNet performance, proper wiring installation practices must be followed.
Failure to do so can result in a range of problems, from loss of configuration to component failure,
caused by transmitted or radiated electrical noise. Proper consideration must be given to local noise
sources and appropriate suppression steps taken to minimize any potential problems.
Among the most common sources of noise are: Relays, SCRs, valve solenoids, electric motors, power
line disturbance, wire-to-wire coupling, electrostatic discharge (ESD) and radio-frequency interference
(RFI).
1. To achieve the best results, the following notes should be considered:
Low level signal wiring such as that associated with thermocouples, RTDs and current loops
should always be kept separate from power and control output wiring.
2. Signal input wiring should be twisted pairs/triplets etc. and the conductors should be stranded
rather than solid in construction. All signal wiring should use ground-shielded wires or be routed
through grounded conduit. This minimizes the effects of RFI and ESD.
3. Special care should be taken when wiring to relay or solenoid coils, as large transients are
produced when coils (or any other inductive devices) are switched. This problem can be
eliminated using suitable suppression devices across the coil. Coil transients can also be
transmitted through the air, so the recorder itself should be mounted as far as possible from
power control devices and/or wiring.
4. When line power is poorly regulated and / or subject to voltage surges or transients,
consideration should be given to the use of a line conditioning/transient suppressing line power
regulator. Process control motors, valves, relays, and heaters should not be connected to the
same power lines that are used for instrumentation.
5. The connection of the LmNet to a proper safety earth ground is essential. Such a connection not
only reduces the possibility of electric shock, but also provides the required return for the LmNet
line power filters.
6. All local electrical codes of practice must be followed when installing any instrumentation. For
sensor wiring, all the sensor connectors are at the back side of the LmNet as shown in figure 9.

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Figure 9 Sensor Wiring
The LmNet can be connected and configured to operate with a variety of signal sources as
thermocouple, RTDs, dc current, dc voltage etc. The sensor wiring for different sensors is shown as
under:
5.1.1.3 Sensor Wiring - RTD 3 Wire input
Figure 10 Sensor Wiring - RTD 3 Wire input
Sensor connector
Sensor connector

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The connection for 3-wire RTD sensor is shown in figure-10. Normally RTD sensor with 3 wires has two
similar color wire and other one different color. connect two similar color wires at ‘-’and ‘W’.
Connect the remaining dissimilar color wire at’+'. Similarly connect for all other channels.
5.1.1.4 Sensor Wiring - RTD 2 Wire Input
Figure 11 Sensor Wiring - RTD 2 Wire Input
For 2 wire RTD sensor connect 2-wires of the sensor at '+’ &’-’ and put an external short link between
'-' and ‘W’ as shown in figure-11. Similarly connect for all other channels.
Notes:
1. When wiring RTDs, lead length and diameter must be chosen such that lead length are equal
and that each lead exhibits no more than 10 Ohms resistance between the LmNet and the
RTD.
2. For Input connections, high quality, low resistance contacts must be used which are suitable
for dry operations.
Sensor connector

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5.1.1.5 Sensor Wiring - Thermocouple Input
Figure 12 Sensor Wiring - Thermocouple Input
Connect the 2-wires of Thermocouple sensor at’+' &’-’ of sensor connector as shown in Figure-12.
Sensor connector

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5.1.1.6 Sensor Wiring - m Volt Input
Figure 13 Sensor Wiring -m Volt Input
The Sensor connection for mV input is shown in figure-14. Connect the’+’ and ‘- ‘of the sensor to
’+’ and '-' respectively of sensor connector as shown in Figure-13. Similarly connect for all other
channels.
Sensor connector

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5.1.1.7 Sensor Wiring - 4-20 mAmp. / O-20 mAmp. Input
Figure 14 Sensor Wiring 4-20 mAmp. / 0-20 mAmp. Input
5.1.1.8 Re-Transmitter
Re-Transmitter output Op1 gives +15 Volt Connecting LmNet and other instrument in series with
Transmitter and External Power Supply as per figure 15.
5 4 3 2 1
Re-Transmitter
LM NET

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Figure 15 Connecting LmNet and other instrument with transmitter and External Power Supply
Connecting LmNet with Transmitter and Internal Power Supply: -
Figure 16 Connecting LmNet with Transmitter and Internal Power Supply
The connection for 4-20 mAmp. / 0-20 mAmp. Input is shown in figure-16. For LmNet the shunt of 50
Ohms is externally supplied. If you want to connect more than one instrument in series, than LmNet
should be placed in such a way that not more than 150 Ohms of load resistance is added in the loop
after LmNet as shown in Figure 16. Connection of LmNet with Transmitter and External Power Supply
is as Shown in figure 16.
50Ω External Shunt
(supplied)
15 V DC external
Supply
Transmitter
4-20 mA/0-20mA Input
+ -
+ -
<150 Ω
Other Instrument
LM NET