GE Kelman MULTITRANS User manual

GEDE-GA_M-DLIS-TE.MA-003 Rev 3.0 18-Jan-16
GE
Grid Solutions
Kelman MULTITRANS™
User Guide
Transformer Oil
Dissolved Gas and Moisture Monitor

Contents
1Introduction.................................................................................................................................... 5
1.1 Product Overview................................................................................................................... 5
1.2 Manual Scope......................................................................................................................... 5
2Safety.............................................................................................................................................. 6
2.1 Symbols .................................................................................................................................. 6
2.2 Warnings ................................................................................................................................ 6
2.3 Hazardous Substances.......................................................................................................... 7
3Technical Specification .................................................................................................................. 8
4Compliance..................................................................................................................................... 9
5Power............................................................................................................................................10
5.1 Introduction..........................................................................................................................10
5.2 Cold Start ..............................................................................................................................10
5.3 Battery ..................................................................................................................................11
5.4 Power-Down Procedure ......................................................................................................12
6LCD Panel......................................................................................................................................13
6.1 LCD Notifications.................................................................................................................. 13
6.1.1 Startup ..........................................................................................................................13
6.1.2 Manual Measurements................................................................................................15
6.1.3 Manual Oil Sampling ....................................................................................................16
6.1.4 Further System Specifications.....................................................................................17
6.2 Error Notification.................................................................................................................. 19
6.2.1 Error codes ...................................................................................................................20
7Manual Oil Sampling ....................................................................................................................21
7.1 Sampling Arrangement........................................................................................................21
7.2 Sampling Process.................................................................................................................22
8Air Filter Cleaning .........................................................................................................................24
9Oil Filter Cleaning ......................................................................................................................... 26
10 Communications......................................................................................................................27
11 Modbus Protocol ......................................................................................................................27
12 Service Logs..............................................................................................................................27
13 Technical Support .................................................................................................................... 27
Time Sync Implementation..........................................................................................28Appendix A
Contact & Copyright Details ................................................................................................................30

Table of Figures
Figure 5—1: Power switch....................................................................................................................10
Figure 5—2: LED indicator lights & fuse holder...................................................................................10
Figure 5—3: Coin cell battery............................................................................................................... 11
Figure 5—4: Standby mode .................................................................................................................12
Figure 5—5: Power switch....................................................................................................................12
Figure 5—6: Operation mode...............................................................................................................12
Figure 6—1: Inside view .......................................................................................................................13
Figure 6—2: Boot ..................................................................................................................................14
Figure 6—3: Version .............................................................................................................................14
Figure 6—4: Standby mode .................................................................................................................14
Figure 6—5: Three sources ..................................................................................................................14
Figure 6—6: Peripheral scheduler........................................................................................................15
Figure 6—7: Start a manual measurement ........................................................................................ 15
Figure 6—8: Oil switching..................................................................................................................... 15
Figure 6—9: Stop a measurement.......................................................................................................16
Figure 6—10: Measurement data........................................................................................................ 16
Figure 6—11: Measurement in progress.............................................................................................16
Figure 6—12: Standby mode ...............................................................................................................16
Figure 6—13: Countdown & Purge ......................................................................................................17
Figure 6—14: Take sample & Standby.................................................................................................17
Figure 6—15: Communication channels............................................................................................. 17
Figure 6—16: Networking ....................................................................................................................18
Figure 6—17: GSM / GPRS modem......................................................................................................18
Figure 6—18: LCD error format........................................................................................................... 19
Figure 6—19: LCD error example.........................................................................................................19
Figure 7—1: Oil filters and sampling port (front view) ........................................................................21
Figure 7—2: Valve orientation..............................................................................................................21
Figure 7—3: Sampling assembly .........................................................................................................21
Figure 7—4: Luer fitting on assembly.................................................................................................. 21
Figure 7—5: Manual oil sampling flowchart .......................................................................................22
Figure 8—1: Air filter .............................................................................................................................24
Figure 8—2: Metallic hood ................................................................................................................... 25
Figure 9—1: Oil filter ............................................................................................................................. 26
List of Tables
Table 3—1: Technical specification ....................................................................................................... 8
Table 4—1: Type tests ............................................................................................................................ 9
Table 5—1: External LED status indicators .........................................................................................10
Table 6—1: Errors .................................................................................................................................20
Table A—1: Timing................................................................................................................................28
Table A—2: UNIX time registers........................................................................................................... 28

Table A—3: Access flags.......................................................................................................................29
Table A—4: Modifier flags..................................................................................................................... 29

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 5 of 30
1INTRODUCTION
1.1 Product Overview
The MULTITRANS™(herein referred to as the product) is an on-line DGA (Dissolved Gas
Analysis) system for transformer diagnostics. It is designed to monitor up to three
separate oil tanks or a bank of three single-phase transformers in close proximity. The
product measures the following key fault gases in the transformer oil: hydrogen,
methane, ethane, ethylene, carbon monoxide, carbon dioxide and acetylene.In
addition the product also measures oxygen, nitrogen as well as moisture in the oil and
the transformer load current. Such data provides insight on transformer condition
criteria, such as developing faults, paper degradation and electrical arcing. Once
installed, operation is straightforward. All results are stored within the product, but can be
downloaded to a PC for analysis.
The key features and characteristics are summarised as follows:
Utilises dynamic headspace sampling to extract target gases from the oil sample.
No consumables, such as carrier gases are required.
Accurate results are available as often as once per hour.
Minimal maintenance*.
Uses highly accurate and stable Photo-acoustic Spectrographic technology.
Fully embedded microprocessor with non-volatile internal memory storage for
10,000 records.
Stainless steel outdoor-rated IP55 enclosure connected to the transformer by
robust stainless steel tubing.
All gas sensing is carried out internally –no external gas sensors.
Transformer load tracking is available.
Six user-configurable relay contacts based on absolute gas and moisture values.
Two user-configurable sunlight-visible LED arrays on the exterior of the enclosure –
one red for alarm, one yellow for caution.
Two standard sunlight-visible LED arrays –green for power, blue for service.
Communication options include: Ethernet, RS-232, Cellular modem (GSM/GPRS),
PSTN modem, RS-485 and Fibre Optic. Other options may be available on request.
Internal USB connection provided for commissioning and service, or local data
download.
*Note: The only recommended maintenance is periodic cleaning of the air filters, in-line oil filter and
battery replacement.
1.2 Manual Scope
This guide outlines the use of the LCD panel, manual DGA sampling function and general
maintenance activities.

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 6 of 30
2SAFETY
2.1 Symbols
The following symbols are used in this manual and/or on this product:
General Warning or Caution. Refer to the Installation Manual / User
Guide to prevent injury or damage to equipment.
Electrical Hazard. Risk of electric shock.
Primary Protective Earth connection.
Hot surfaces may be present.
2.2 Warnings
The following warnings must be observed:
The minimum ambient temperature for installation and service activities is
−10 °C.
If the equipment is installed or used in a manner not specified by the
manufacturer, the protection provided by the equipment may be impaired.
If working at height, third parties must have received appropriate training for
working at height prior to work commencing. This includes, but is not limited to
"Working at height training".
If working at a height greater than 4 feet or at a height greater than that
stipulated by national or site regulatory requirements, it is the responsibility of
the user to ensure that planned work complies with those requirements.
The user shall also ensure that any third-party equipment, such as an approved
platform, scaffold or lift is suitable and safe before commencing work. Ladders
or improvised platforms do not meet GE service engineer requirements.

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 7 of 30
Once installed, this product may have more than one source of supply.
Disconnect all supplies at their source before accessing the cabinet for
servicing. Follow the site lockout-tagout (LOTO) procedure.
Disconnection from the supply is achieved through the external circuit breaker
or switch.
Ensure all power sources, including relays, are de-energised as stipulated by
lockout-tagout (LOTO) requirements before removing inner covers.
The product is operated with the door shut under normal use. The door shall be
kept locked and should only be opened for service access by suitably qualified
and authorised service personnel. During service access, hazardous voltages
are accessible.
Only GE-trained and certified personnel may commission GE products.
Commissioning tasks include making any connections and/or performing any
work within the enclosure, or performing tasks such as purging the oil circuit
between the transformer and the product, and/or all first start-up procedures
relating to equipment or firmware/software.
The product provides IP55 level water spray protection. It is possible for a water
deluge system to exceed IP55 thresholds depending on the location, pressure
and direction of the water jets. Therefore should customers require testing a
water deluge system in the area in which the product is installed, GE
recommends powering down the product and draping it with a suitable
waterproof covering.
2.3 Hazardous Substances
The gases measured in the product are extracted from the oil and expelled to the
atmosphere. These gases are at concentrations that are nonflammable, nontoxic and
quickly diluted in the surrounding atmosphere. The expelled gases are not hazardous to
health or life.

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 8 of 30
3TECHNICAL SPECIFICATION
The product meets the following technical specification as outlined in Table 3—1.
Table 3—1: Technical specification
PARAMETER
VALUE/MEETS
GAS MEASURED
MEASUREMENT RANGE (ppm) and accuracy
Hydrogen (H2)
5 –5,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Methane (CH4)
2 –50,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Ethane (C2H6)
2 –50,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Ethylene (C2H4)
2 –50,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Acetylene (C2H2)
0.5 –50,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Carbon Monoxide (CO)
2 –50,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Carbon Dioxide (CO2)
20 –50,000 Accuracy ± 5% or ± LDL (whichever is greater) *1
Oxygen (O2)
100 –50,000 Accuracy ± 10% or ± LDL (whichever is greater) *1
Nitrogen (N2)
(Available on free-breathing transformers
only)
10,000 - 100,000 ppm Accuracy ± 15% or ± LDL (whichever is
greater) *1
Moisture (H2O)
0 –100% RS (given in ppm)
ENVIRONMENTAL
External temperature range
−40 °C to 55 °C
Oil temperature range
−20 °C to 120 °C*2
Altitude
Up to 2000 m
Atmospheric pressure
Up to 1050 mbar
Operating humidity
10 –95% RH non-condensing
Enclosure
IP55
Weight
76.5 kg (169 lb)
POWER REQUIREMENTS
110 / 230 V AC*3 (factory set), 50/60 Hz, 8 A Max
Single phase Alarm Relays: NO and NC
provided
3 A 250 V AC, 150 mA 300 V DC*4, 200 mA 125 V DC, 3 A 30 V DC
Fuses *5
10 A 500 V (Cooper Bussmann BAF), 10x38 mm
MEASUREMENT FREQUENCY
Variable –Once per hour to once every 4 weeks
*1 Note: Accuracy quoted is the accuracy of detectors during calibration; gas-in-oil measurement
accuracy may also be affected by sampling and/or oil type.
*2 Note: Based on testing carried out using VOLTESSO™ 35 mineral oil over a ¼ in. pipe run of 10 metres
or less from oil supply or return valve to product connection point, and on transformer oil supply valve
volumes of 200ml or less. For oil temperatures colder than -20 ºC, GE recommends the use of heat trace
cabling on piping.
*3 Note: Voltage ranges:
Set Voltage (V AC)
Minimum I/P Voltage (V AC)
Maximum I/P Voltage (V AC)
110
100
121
230
207
253
*4 Note: Maximum DC breaking capacity for a resistive load.
*5 Note: Use only the approved and recommended fuse to ensure continued fire protection and
compliance.

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 9 of 30
4COMPLIANCE
The product is designed to meet the following type tests as listed in Table 4—1:
Table 4—1: Type tests
Category
Standard
Class/Level
Test
EMC Emissions –
EN 61326-1:2006
CISPR 11
A
Radiated & Conducted Emissions
FCC Part 15
Meets the requirements of A
Radiated & Conducted Emissions
EN 61000-3-2
A
Harmonic Current Emissions
Limits
EMC Immunity –
EN 61326-1:2006
EN 61000-4-2
IV
Electrostatic Discharge
EN 61000-4-3
III
Electromagnetic Field Immunity
EN 61000-4-4
III
Electrical Fast Transients
EN 61000-4-5
III
Surge Immunity
EN 61000-4-6
III
Conducted RF Immunity
EN 61000-4-8
IV & V
Magnetic Field Immunity
IEC 61000-4-9
X
Pulsed Magnetic Field Immunity
IEC 61000-4-10
X
Damped Oscillatory Magnetic
Field Immunity
EN 61000-4-11
III
Voltage Dips & Interruptions
IEC 61000-4-12
X 2.5 kV & 1kV
Oscillatory Wave
IEC 61000-4-18
X
Damped Oscillatory Wave
EN 61000-3-3
Pst 10 min, Plt 120 min
Voltage fluctuations & flicker
EN 60255-5
5 kV, 2 kV & 500 V DC
Impulse, Dielectric & Insulation
resistance testing
Environmental
IEC 60068-2-1
−40 °C
Cold
IEC 60068-2-2
55 °C
Dry Heat
IEC 60068-2-6
10 –150 Hz, 0.5 g operation
10 –150 Hz, 0.5 g endurance
Vibration
IEC 60068-2-30
55 °C, 95% RH
Damp Heat
EN 60529
IP55
Degree of Protection
Safety
IEC 61010-1
2010
EN 61010-1
2010
UL 61010-1
2012

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 10 of 30
5POWER
5.1 Introduction
The product is powered up by pressing the Power switch located inside the product
towards the bottom right-hand side (see Figure 5—1). The mains fuse holder for the
product is shown in Figure 5—2.
Figure 5—1: Power switch
Figure 5—2: LED indicator lights & fuse holder
The product uses four external sunlight-visible LEDs on the front door. Each LED has two
states –‘Off’ (-) or ‘On’as outlined in Table 5—1.
Table 5—1: External LED status indicators
Mode
Alarm (red) LED
Caution (yellow) LED
Power (green) LED
Service (blue) LED
Power Off
-
-
-
-
Normal
-
-
On
-
Alarm
On
-
On
-
Caution
-
On
On
-
Service
-
-
On
On
5.2 Cold Start
If the product is powered up in cold conditions (less than −10 °C), the product initiates the
following cold-start sequence before a measurement can commence. The internal heater
in zone 1 automatically switches on to increase the internal temperature to within the
PGA operational temperature range. The system does not fully power up until the
working temperature in zone 1 reaches −10 °C, after which the system becomes
operational. Lights for the system power supplies are situated on the circuit board at the
rear as shown in Figure 5—2.
Note: Once the DC power supply resumes, the internal temperature of the product may take several
hours to reach working temperature before a measurement cycle commences.
24 V DC
LED
12 V DC
LED
Fuse holders for
mains input power

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 11 of 30
5.3 Battery
The product uses a non-rechargeable lithium coin cell battery (Panasonic CR2450 3 V 620
mAh) as shown in Figure 5—3. In the event that the battery needs to be replaced, data
from the product must be backed up. Failure to do so may result in historical data loss.
Figure 5—3: Coin cell battery
The following steps describe how to change the battery:
1. Back up the product data –contact your GE representative.
2. Open the inner door to locate the battery on the system board (as
shown in Figure 5—3).
3. Slide the battery out of its housing.
4. Replace with a new Panasonic CR2450 3 V 620 mAh coin cell.
5. Close the inner door.
There is a danger of a new battery exploding if installed incorrectly.
Dispose of the used battery in accordance with local regulations —not in a fire
or with household waste. Contact your local waste disposal agency for the
address of the nearest battery deposit site. Perchlorate material —special
handling may apply. See: www.dtsc.ca.gov/hazardouswaste/perchlorate/

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 12 of 30
5.4 Power-Down Procedure
If the transformer is to be shut down or the product needs to be shut down, perform the
following steps:
1. Open the door of the product and observe the operating mode on the LCD panel.
2. If the product is in Standby mode as shown in Figure 5—4, perform the following
steps:
Turn the switch on the inner door to the ‘Off’ position as shown in Figure 5—5.
Turn the external switch or circuit breaker to the ‘Off’position.
Turn the transformer oil valves that connect to the input and output of the
product to the ‘Off’position.
Figure 5—4: Standby mode
Figure 5—5: Power switch
Figure 5—6: Operation mode
3. If for example, as shown in Figure 5—6 the product is in Operation mode, perform
the following steps:
Press the red Stop button (Figure 5—4) or use the TRANSCONNECT software to
stop an active measurement.
The LCD reads “OIL DRAINING”. This process may take several minutes.
When the product returns to Standby mode as shown in Figure 5—4, turn the
switch on the inner door to the ‘Off’position as shown in Figure 5—5.
Turn the external switch or circuit breaker to the ‘Off’position.
Turn the transformer oil valves that connect to the input and output of the
product to the ‘Off’position.
When the product is to be powered up again, first turn the transformer oil valves that
connect to the input and output of the product to the ‘On’ position. Then turn on the
external switch or circuit breaker. Finally turn the switch on the inner door to the ‘On’
position. The product will be ready to resume taking scheduled readings.

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 13 of 30
6LCD PANEL
The LCD panel is located on the inner cover and is visible when the door is open as shown
in Figure 6—1.
Figure 6—1: Inside view
During an analysis, the LCD panel shows the serial number of the product and the
operational state. The last measurement results with date and time stamps can be
obtained by using the black scroll buttons to page up or down through the details (see
Section 6.1 for examples). By default, automatic paging is turned off.
6.1 LCD Notifications
The section outlines some examples of the notices and data pages rendered on the LCD
panel for a standard environment using factory settings. It illustrates typical information
that a user is likely to see during normal operation. This can vary depending on the
operational environment, firmware version and how the product is configured.
6.1.1 Startup
6.1.1.1 Boot
The Boot notice displays after power up or reset and progresses through a code checking
sequence as shown in Figure 6—2. If boot problems occur, the product raises an error.
Contact the Customer Service Centre.
On/Off Switch
LCD Panel
Scroll Up
Scroll Down
Start
Stop
Manual Sample
USB Connection

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 14 of 30
Figure 6—2: Boot
6.1.1.2 Version
If the boot sequence is successful, a Version notice reflects the product name, serial
number, firmware version and PGA version as shown in Figure 6—3. Use the black scroll
buttons at any time to page through the various notifications and data pages, including
existing measurement results.
Figure 6—3: Version
6.1.1.3 Standby
A notification indicates the operational mode as shown in Figure 6—5. Standby mode is
the initial operational mode. If scheduled measurements are configured, they will occur
automatically at the scheduled time (see Section 6.1.2.4). If there are no scheduled
measurements, the Scheduler Disabled notice displays.
or
Figure 6—4: Standby mode
Use the black scroll buttons at any time to page through any data pages for the three
sources.
Figure 6—5: Three sources
6.1.1.4 Peripheral Scheduler
A notification lists all peripheral connections as shown in Figure 6—6. If the peripheral
scheduler is enabled, all analogue inputs are listed with corresponding null values. The
product has analogue inputs AIn1 to AIn6, but corresponding values for these appear
DLM 1.2.0
CODE CHECKING
MULTITRANS
MT1-A000000
1.12.2
PGA: 4.0.0
PERIPHERAL SCHEDULER
STANDBY
>>> OK <<<
2013-07-30 10:00:00
SCHEDULER DISABLED
SOURCE 1
>>> OK <<<
SOURCE 2
>>> OK <<<
SOURCE 3
>>> OK <<<

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 15 of 30
after peripheral(s) are connected. By default, a newly shipped product has no connected
peripherals, but a configured installation may have a load sensor connected.
or
Figure 6—6: Peripheral scheduler
6.1.2 Manual Measurements
6.1.2.1 Start a Manual Measurement
Use the blue Start button to initiate a manual measurement on the main tank. The timer
automatically counts down from 10 seconds and then indicates the start of a manual
measurement as shown in Figure 6—7. Note: If the selected oil circuit is different from the previous
oil circuit, an oil switching notice also displays as outlined in Section 6.1.2.2.
Figure 6—7: Start a manual measurement
6.1.2.2 Oil Switching
If the current oil circuit (the one last measured) is different from the selected oil circuit to
measure, the product first needs to switch between oil circuits before a measurement
can begin. Figure 6—8 indicates switching from one circuit to another.
Figure 6—8: Oil switching
6.1.2.3 Stop a Measurement
Use the red Stop button to abort an active measurement. After any remaining oil in the
headspace drains, the product returns to Standby as shown in Figure 6—9.
PERIPHERAL SCHEDULER
DISABLED
>>> OK <<<
SOURCE 1
Analn0 0000.0uuu
Analn1 0000.0uuu
Analn2 0000.0uuu
SOURCE 1
MEASUREMENT IN
10 s
2013-07-30 11:21:00
SOURCE 1
MEASUREMENT STARTED
2013-07-30 11:21:10
SOURCE1
>>> OK <<<
2013-07-30 11:21:10
2013-07-30 11:45:00
OIL SWITCHING
2013-07-30 11:45:00
OIL DRAINING

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 16 of 30
Figure 6—9: Stop a measurement
6.1.2.4 Measurement Data
Use the black scroll buttons at any time to page through the notices and see the
measurement data. For example, data for Source 1 is shown in Figure 6—10. Similar
pages display for each oil source in turn (Sources 2 and 3). The product can also be
configured to automatically page through the results of the last analysis for each oil
source. Note: If nitrogen measurement is not enabled, the nitrogen and total gas concentration is omitted.
Figure 6—10: Measurement data
6.1.3 Manual Oil Sampling
Use the white Manual Sample button to initiate the manual oil sampling process. If the
white Manual Sample button is pressed during a measurement, the notice shown in
Figure 6—11 displays.
Figure 6—11: Measurement in progress
Wait until the current measurement process is complete or stop the current
measurement process (See Section 6.1.2.3). The system returns to Standby as shown in
Figure 6—12.
Figure 6—12: Standby mode
2013-07-30 12:00:00
STANDBY
SOURCE 1
LAST MEASUREMENT
2013-07-30 12:48:10
SOURCE 1
H2 15170.0 ppm
CH4 333.0 ppm
C2H6 3320.0ppm
SOURCE 1
C2H4 5000.0ppm
C2H2 2345.0ppm
TDCG 26390.0ppm
SOURCE 1
H2O 1040.0ppm
CO 222.0ppm
CO2 234.0ppm
SOURCE 1
O2 4190.0ppm
SOURCE 1
Amb Temp - 0.1 °C
Oil Temp +38.3 °C
Oil Press +97.1 kPa
SOURCE 1
AIN 1 -1.111xxx
SOURCE 1
NEXT MEASUREMENT
2013-07-30 16:48
MANUAL DGA PREVENTED
MEASUREMENT IN PROGRESS
2013-07-30 12:00:00
STANDBY

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 17 of 30
A single press of the white Manual Sample button during Standby, selects the current oil
circuit for sampling. Subsequent presses of the button are used to toggle through and
select a different oil circuit from the three available. Once a circuit is displayed, the timer
automatically counts down from 10 seconds and if the white button is not pressed again,
the listed circuit is selected for manual oil sampling. After the count down an oil purge is
performed as shown in Figure 6—13.
Figure 6—13: Countdown & Purge
Note: The oil must be purged for a suitable period of time dependent on the installation. See the ‘Sampling
Process’ in Section 7.2.
The system prompts the user to take the manual oil sample and then returns to Standby
mode when complete as shown in Figure 6—14.
Figure 6—14: Take sample & Standby
6.1.4 Further System Specifications
6.1.4.1 Communications Channels
The product has two serial communications channels. For example, default configuration
details are shown in Figure 6—15, such as the interface, protocol, baud rate, modbus
address and parity error-checking format:
Figure 6—15: Communication channels
6.1.4.2 Networking
If Ethernet is enabled and a RJ-45 connection made, relevant network details are shown.
For security reasons, all network details are hidden by default as shown in Figure 6—16,
but these can be software enabled.
SOURCE 1
MANUAL DGA IN
10s
SOURCE 1
>>> MANUAL DGA <<<
PURGING OIL
PRESS KEY WHEN DONE
SOURCE 1
>>> MANUAL DGA <<<
TAKE OIL SAMPLE
PRESS KEY WHEN DONE
2013-07-30 12:00:00
STANDBY
ChA RTU 1 RS232
19200 0
ChB: ASC 1 GSMGPRS
57600 0

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 18 of 30
Figure 6—16: Networking
6.1.4.3 Other System Details
Additional notifications reflect the configuration of the product. For example, if a
GSM/GPRS modem is fitted, additional page(s) as shown in Figure 6—17 reflect the
communications provider, signal strength and any problems.
Figure 6—17: GSM / GPRS modem
Notes:
a) Actual product values depend on the installation at any moment in time.
b) Actual parameter format can vary e.g. O2or Oxygen.
c) See Section 6.2 for a list of defined error codes.
d) System Failure mode limits functionality. Contact the Customer Service Centre.
IP: XXX.XXX.XXX.XXX
SUB: XXX.XXX.XXX.XXX
GW: XXX.XXX.XXX.XXX
TCP: 502
vodafone UK
MAJOR GPRS PROBLEM

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 19 of 30
6.2 Error Notification
The LCD panel lists the last detected errors using a sequence of double-digit codes. A 00
state code denotes the absence of errors, whereas a non-zero state code denotes one or
more errors. See Section 6.2.1 for a list of the error codes. The error format is shown in
Figure 6—18. The top line is used to indicate the state within the measurement process at
which the error occurred, where uppercase ‘XX’ denotes the Oxygen sensor error state (if
the Oxygen sensor is enabled) and uppercase ‘YY’ the PGA error state. The bottom line
denotes specific error codes within that state, where the lowercase ‘xx’ code relates to
the specific Oxygen sensor error and all the remaining ‘yy’ codes relate to specific PGA
errors. Note: The Customer Service Centre requires both the state code(s) and error code(s) in order to
interpret any error.
Figure 6—18: LCD error format
For example, Figure 6—19 shows the product with one PGA error. The first code on the
top line reads 00 which means no reported errors from the Oxygen sensor. The next code
reads 02 which means a reported PGA error in the oil purging state. If there are no
Oxygen sensor errors, the first error code on the bottom line always reads 00. The next
code reads 18 which means that the PGA has detected that the oil pressure is too low.
Figure 6—19: LCD error example
Note: If the Oxygen sensor is not enabled, no Oxygen sensor state or error codes display.
Note: If there is no PGA error, the PGA error state in the top line always reads 00.
MULTITRANS
>>> ERROR (00, 02)<<<
00, 18
MULTITRANS
>>> ERROR (XX, YY) <<<
xx, yy, yy, yy, yy, yy, yy
State codes
Error codes

MA-003 –MULTITRANS User Guide –Rev 3.0 18-Jan-16 Page 20 of 30
6.2.1 Error codes
The LCD panel error codes are listed in Table 6—1. All the service alarm error codes are
accompanied by illumination of the blue Service light that is visible on the front door of
the product.
Note: Error codes are offset by 1 from the MODBUS register bit numbers.
Note: This information relates to firmware version PGA 3.0.81 for MULTITRANS.
Table 6—1: Errors
Code
Error
Note
PGA Connection Error
Timeout
01
PGA power supply voltage too low
02
PGA chopper frequency outside range
03
PGA IR-source outside range
04
Gas flow lower than limit
05
Background noise/vibration too high
06
Microphone test failed
07
Not level sensor 1 pulses (level)
08
Not level sensor 3 (drain)
09
Fill level shows Oil
10
Over Fill shows Oil
11
PGA Air temperature outside limits
12
Bad communication with control PCB
13
Gas leak test: Pump pressure too low
14
Gas leak test: Pressure decay too high
15
Unusual ambient gas measurements
16
Oil temperature too low
17
Oil temperature too high
18
Oil pressure too low
Check that all oil supply valves are open.
19
Oil pressure too high
Check that all oil return valves are open.
20
Oil pump tacho count too high
21
Oil pump pressure too low
22
Oil pump speed out of range
23
Manual oil sampling switch
24
Oil pump tacho count too low
25
Oil pump not turning
26
-
Not used.
27
Temperature Sensor(s) 1 disconnected
28
Temperature Sensor(s) 2 disconnected
29
Drain level shows oil
30
Conditioned oil temperature outside limits