Download [MI EMT0111A

Master Instruction
06.97
MI EMT0111 A-(en)
TI20 Intelligent Temperature Transmitter
These intelligent transmitters are designed to perform measurements of temperature, voltage or resistance. The
transmitters are approved for use in hazardous areas. They can either be mounted in a standard head housing
as well as at a DIN rail. A rugged field housing allows EEx d applications. Bidirectional communication via the
HART protocol is possible using the PC software ABO991 or the Universal Hand Terminal HT991. For the
FOXCOM version configuration is made with the Hand Held Terminal HHT, PC-Software PC10 or directly from
the I/A Series System.
FEATURES
• For all temperature sensors
(resistance thermometers and thermocouples)
• High accuracy over the complete temperature
range
• Intrinsically safe EEx ia IIC T4 ... T6 or
EEx d in the field housing
• Galvanic isolation between input and output
• Open sensor and short-circuit detection
• Can be mounted in a head housing,
at a DIN rail or in a field housing
• Continuous self diagnostics
• Communication via HART or FOXCOM protocol
(4 ... 20 mA and FOXCOM Digital)
• Fast adaptation to a different measuring range
without recalibration
• Safety value configurable
• Integrated current source for loop-check
• Write protection
• Redocumentation of measuring point
• Customized characterization
• Local display freely configurable
• Conventional operation by means of the local
keys of the LCD configurator
• Software lock for local keys control
• EMC protection in accordance with
international standards and laws (CE)
File Name: Foxboro_Transmitter_TI20_instr_D697
Repair and maintenance operations must be carried out by qualified personnel!
2
TI20
MI EMT0111 A-(en)
CONTENTS
CHP.
CONTENTS
PAGE
1
DEVICE SPECIFICATION......................... 3
12
MAINTENANCE, REPAIR ....................... 16
2
OPERATION PROCEDURE ..................... 3
12.1
Sight test at site ....................................... 16
2.1
Function diagram ....................................... 3
2.2
Operation ................................................... 3
3
ELECTRICAL CONNECTION ................... 4
12.2
12.2.1
12.2.2
12.2.3
Functional test ......................................... 16
Resistor Measurement ............................ 16
Voltage Measurement.............................. 17
Measurement of the Output Signal .......... 17
4
OPERATING THE TRANSMITTER
BY MEANS OF THE
LCD CONFIGURATOR ............................. 5
13
OPERATION BY MEANS OF
HAND TERMINAL OR PC ....................... 18
4.1
Entering the “Setup Mode” ........................ 5
13.1
Operation by means of Hand Terminal.... 18
4.2
Exiting the “Setup Mode” ........................... 5
4.3
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
4.3.7
4.3.8
4.3.9
4.3.10
4.3.11
Configuration ............................................ 5
Sensor ....................................................... 6
Unit ............................................................ 6
Zero / Lower Range ................................... 6
Full Scale / Upper Range .......................... 6
Sensor Failsafe Detection ......................... 7
Failsafe value ............................................ 7
Trim 4 mA Analog Output .......................... 7
Trim 20 mA Analog Output ........................ 7
Trim Sensors ............................................. 7
Select Language........................................ 7
Return to “Operate Mode”.......................... 7
4.4
Fault Messages ......................................... 7
4.5
Setup Flowchart......................................... 8
5
MOUNTING ............................................... 9
5.1
DIN rail mounting ....................................... 9
5.2
Field Housing............................................. 9
5.3
Head Housing ............................................ 9
6
DIMENSIONS .......................................... 10
7
METHODS OF
ELECTRICAL CONNECTION ................. 13
7.1
Rail installation ........................................ 13
7.2
Mounting in Field housing........................ 13
7.3
Top installation ........................................ 13
7.4
Grounding ................................................ 13
8
SAFETY REQUIREMENTS..................... 14
8.1
General requirements .............................. 14
8.2
Explosion protection ................................ 14
9
POWER SUPPLY.................................... 15
10
START-UP............................................... 16
11
SHUT-OFF .............................................. 16
13.2 Operation by means of a PC (HART) ...... 18
13.2.1 Hardware ................................................. 18
13.2.2 Software................................................... 18
13.3
Operation by means of a PC (FOXCOM) 18
14
TROUBLE SHOOTING ........................... 19
Further Documentations:
Master Instruction
MI EMO0110 A-(en)
HT991 Universal Hand terminal for HART Devices
Master Instruction
MI EMO0112 A-(en)
ABO991 Display and User Interface for HART
devices
HHT Instruction Book 3372
I/A Series Hand Held Terminal
PC10 Instruction Book 3466
Intelligent Transmitter Configurator
MI EMT0111 A-(en)
TI20
3
1 DEVICE SPECIFICATION
With LCD configurator (sensor connections code 1)
Without LCD configurator
(e.g. sensor connections code 3)
2
4
1
1
2
3
4
1 0 0 0.0 0 0 C
6
CELSIUS
5
3
1 Electronic
2 LCD Configurator
3 Local keys
4 Output terminals (4 ... 20 mA)
5 Sensor terminals
6 Mounting screws
2 OPERATION PROCEDURE
2 . 1 Function diagram
CURRENT SOURCE
SUPPLY
COMMUN.
option
REFERENCE
SENSOR INPUT
A
MUX
D
mV
Ω
TEMP.
MEAS.
SUPPLY
LINE BREAK
DETECTION
µP
MEMORY
64 KB EPROM
D
A
OUTPUT
KEYBOARD
&
DISPLAY
Linearization
Correction
Program Code
2 . 2 Operation
1.
2.
3.
4.
Analog Filter
Software Filter (Smart Smoothing)
Correction of input Signal (Temperature)
Plausibility check of input signal
(Line Break Detection)
5. Linearization
6. Data processing, calculation of the analog output
value (4 ... 20 mA)
7. Output of the measured value
(analog, digital (PV), indicator)
4
TI20
MI EMT0111 A-(en)
3 ELECTRICAL CONNECTION
Sensor- and loop wires:
For the selection of the sensor- and loop wires, please observe the national safety requirements.
Resistance Thermometer or Resistor
2-wire
3-wire
ϑ
ϑ1
ϑ2
2
ϑ
∆ 2-wire ( ϑ1 - ϑ2 )
( ϑ1 + ϑ2 )
2-wire average
2
2 x 2-wire
1
ϑ
4-wire
3
1)
4
Thermocouple or Voltage
Thermocouple
or Voltage
Difference
( ϑ1 ϑ2 )
Thermocouple with external
cold junction compensation
1
ϑ2
2)
3
1)
2
ϑ1
4
Supply, Loop signal and Communication ( HART )
HT991 (HART)
or
HHT (FOXCOM)
≥ 2 5 0 Ω for HART
≥ 2 0 0 Ω for FOXCOM
1)
Short circuit at transmitter
2)
Option for mounting in a head housing
MI EMT0111 A-(en)
TI20
5
4 OPERATING THE TRANSMITTER
BY MEANS OF THE
LCD CONFIGURATOR
The Temperature Transmitter is available with a
LCD Configurator optional.
The LCD Configurator consists of an indicator and
two push buttons.
There are two LCD Configurators that differ in
terms of display comfort.
One Line LCD Configurator
1 0 0.0
PV ( operate mode )
/ Menu item ( setup mode )
The LCD configurator is either in the “Operate
Mode” or the “Setup Mode”
In the “Operate Mode” the PV is shown along with
an analog bar graph and a user defined label
(Three Line LCD Configurator only).
For reconfiguring the transmitter, the configurator
has to be set into the “Setup Mode”.
In the “Setup Mode” instead of the process
information the actual menu item to be entered is
shown. Note that when more than seven
characters are required to describe the function,
the display keeps sequencing through two or more
screens.
For changing the configuration the local push
buttons marked “NEXT” and “ENTER” are used.
Buttons
4 .1 Entering the “Setup Mode”
Three Line LCD Configurator
Sign
PV
Unit
- 2 0 0.0 0 C
To start the “Operate Mode” press the key marked
“NEXT”. The display starts to alternate between
“RETURN TO OPERATE MODE”
(for the Three Line LCD Configurator)
resp. 9900 (for the One Line LCD Configurator).
Pressing the key marked “ENTER” enters the
“Operate Mode” whereas pressing the key marked
“NEXT” enters the “Setup Mode”, and the first
menu item is displayed.
Analog bar graph
CELSIUS
Text label ( operate mode )
/ Menu item ( setup mode )
Buttons
The device can be reconfigured using the integrated push buttons. Please note that the data that
can be changed using the local keys on the display
only is part of the data stored in the device. The
complete data set can be accessed using a PC or
a Hand Terminal.
The push buttons are marked NEXT respectively
ENTER. They have the following function:
NEXT: Display next menu item
ENTER: Enter displayed menu item,
resp. select displayed item
4 .2 Exiting the “Setup Mode”
To exit the “Setup Mode”, press the key named
“NEXT” as often until the message
“RETURN TO OPERATE MODE” resp. 9900
appears. Pressing “ENTER” causes the device to
exit the “Setup Mode” and to return to the “Operate
Mode”.
4 .3 Configuration
The positions of the configuration are constructed
in a loop. When entering the loop, the first position
selected is the sensor type. The configuration is
done in the following sequence.
For the order of the menu items, please refer to the
setup flowchart on page 8 for the sequence of the
configuration.
6
TI20
MI EMT0111 A-(en)
4.3.1 Sensor
Displayed:
SELECT SENSOR?
resp. 9000
Pressing “ENTER” will enter this menu.
The user may select from:
Display
LCD Configurator
Three Line
One Line
T/C B
9001
T/C C
9002
T/C E
9003
T/C J
9004
T/C K
9005
T/C L
9006
T/C N
9007
T/C R
9008
T/C S
9009
T/C T
9010
T/C U
9011
T/CSPEZ
9012
2W OHMS
9013
2W PINP
2WSAMAP
2W SPEC
9014
9015
9016
3W OHMS
9017
3W PINP
3WSAMAP
3W SPEC
9018
9019
9020
4W OHMS
9021
4W DINP
4W SAMAP
4W SPEC
9022
9023
9024
MV
9025
HHT ONLY
9026
1)
2)
Description
Thermocouple Type B
Thermocouple Type C
Thermocouple Type E
Thermocouple Type J
Thermocouple Type K
Thermocouple Type L
Thermocouple Type N
Thermocouple Type R
Thermocouple Type S
Thermocouple Type T
Thermocouple Type U
Thermocouple Special
Ohm measurement,
2-wire
PT100, DIN, 2-wire
PT100, SAMA, 2-wire
Special, 2-wire
Ohm measurement,
3-wire
PT100, DIN, 3-wire
PT100, SAMA, 3-wire
Special, 3-wire
Ohm measurement,
4-wire
PT100, DIN, 4-wire
PT100, SAMA, 4-wire
Special, 4-wire
mV measurement
Can only be configured
using a Hand Terminal or
PC.
With Ohm and mV sensors, the menu item “Select Unit”
does not appear. Instead Ohm resp. mv is automatically
configured.
Decade value being changed blinks
4.3.2 Unit
Displayed:
SELECT UNITS? resp. 9100
Pressing “ENTER” will enter this menu.
The user may select from:
Display
LCD Configurator
Three Line
One Line
DEG C
9132
DEG F
9133
DEG R
9134
DEG K
9135
Description 1)
Unit °Celsius
Unit °Fahrenheit
Unit °Rankine
Unit Kelvin
4.3.3 Zero / Lower Range
Displayed:
CHANGE ZERO? resp. 9200
Pressing “ENTER” selects this menu item. Before
the numerical value can be changed, the sign has
to be selected. After that, each decade value has
to be entered separately.
Display
LCD Configurator
Three Line
One Line
PLUS?
9201
MINUS?
9202
2)
THOUSN?
2)
HUNDRD?
2)
TENS?
2)
ONES?
2)
TENTHS?
2)
HUNDTH?
Description
Positive sign (e.g. + 600 C)
Negative sign (e.g. - 60 C)
Thousands
Hundreds
Tens
Ones
Tenths
Hundredths
4.3.4 Full Scale / Upper Range
Displayed:
CHANGE FULL SCALE? resp. 9300
Pressing “ENTER” selects this menu item. Before
the numerical value can be changed, the sign has
to be selected. After that, each decade value has
to be entered separately.
Indication
LCD Configurator
Three Line
One Line
PLUS?
9301
MINUS?
9302
2)
THOUSN?
2)
HUNDRD?
2)
TENS ?
2)
ONES ?
2)
TENTHS?
2)
HUNDTH?
Description
Postive sign (e.g. + 600 C)
Negative sign (e.g. - 60 C)
Thousands
Hundreds
Tens
Ones
Tenths
Hundredths
MI EMT0111 A-(en)
TI20
4.3.5 Sensor Failsafe Detection
Displayed:
SELECT SENSOR FAIL SAVE?
The user may select from:
Display
LCD Configurator
Three Line
One Line
ON
OFF
9401
9402
resp. 9400
Description
Turn sensor failsafe
detection on
Turn sensor failsafe
detection off
4.3.6 Failsafe value
Displayed:
SELECT FAIL SAFE? resp. 9500
The user may select from:
Display
LCD Configurator
Three Line
One Line
LOW
9501
HIGH
9502
OFF
9503
Description
Failsafe value set to
3.6 mA
Failsafe value set to
23.0 mA
No Failsafe value
allocation
4.3.7 Trim 4 mA Analog Output
Displayed:
TRIM 4 MA? resp. 9600
The user may select from:
Display
LCD Configurator
Three Line
One Line
RAISE
9601
MA OUT?
NEXT=+
9610
LOWER
MA OUT?
9602
NEXT=-
9620
Description
Each time the pushbutton
NEXT is pressed, the
analog value increases by
4 µA
Each time the pushbutton
NEXT is pressed, the
analog value decreases
by 4 µA
4.3.8 Trim 20 mA Analog Output
Displayed:
TRIM 20 MA? resp. 9700
The user may select from:
Display
LCD Configurator
Three Line
One Line
RAISE
9701
MA OUT?
NEXT=+
9710
LOWER MA
OUT?
9702
NEXT=-
9720
1)
2)
4.3.9 Trim Sensors
In this menu the sensor can be trimmed so that the
device displays the correct value.
TRIM DISPLY? rsp. 9800
Pressing “ENTER” selects this menu item. Before
the numerical value can be changed, the sign has
to be selected. After that, each decade value has
to be entered separately.
Display
LCD Configurator
Three Line
One Line
PLUS?
9801
MINUS?
9802
2)
THOUSN?
2)
HUNDRD?
2)
TENS ?
2)
ONES ?
2)
TENTHS?
2)
HUNDTH?
Display
LCD Configurator
Three Line
One Line
GERMAN
FRENCH
1)
SPANISH
ENGLISH
Postive sign (e.g. + 600 C)
Negative sign (e.g. - 60 C)
Thousands
Hundreds
Tens
Ones
Tenths
Hundredths
Description
German
French
Spanish
English
4.3.11 Return to “Operate Mode”
Pressing “ENTER” causes the device to leave the
“Setup Mode” and to return to the “Operate Mode”.
Displayed:
RETURN TO OPERATE MODE? rsp. 9900
4 .4 Fault Messages
Display
LCD Configurator
Three Line
One Line
FAIL SAFE
9999
Each time the pushbutton
NEXT is pressed, the
analog value increases by
4 µA
DISPFAIL
1)
Function only available with the Three Line LCD Configurator
Decade value being changed blinks
Description
4.3.10 Select Language
Displayed:
SELECT LANGUAGE?
The user may select from:
Description
Each time the pushbutton
NEXT is pressed, the
analog value decreases
by 4 µA
7
Description
Fault in transmitter or line
break / short-circuit
Display Failure.
PV cannot be displayed as
resolution of the display
not sufficient
8
TI20
MI EMT0111 A-(en)
4 .5 Setup Flowchart
Select Input
Thermocouple Type B
Thermocouple Type C
Thermocouple Type E
Thermocouple Type J
.
.
.
4 wire RTD Special
Milivolt Input
HHT only
NEXT
NEXT
ENTER
Select Input ?
ENTER
NEXT
NEXT
NEXT
NEXT
NEXT
Select Unit
Deg C ?
NEXT Deg F ?
NEXT Deg R ?
NEXT Kelvin ?
ENTER
Select Unit ?
ENTER
NEXT
NEXT
Set Zero
ENTER
Plus ?
NEXT
ENTER
NEXT Minus ?
Change Zero ?
ENTER
Set blinking digit
NEXT increments blinking digit
ENTER
sets digit
NEXT
Full Scale (Span)
ENTER
Plus ?
NEXT
ENTER
NEXT Minus ?
Change Full Scale ?
(Span)
ENTER
Set blinking digit
NEXT increments blinking digit
ENTER
sets digit
NEXT
Select Sensor Failsafe
ENTER
Failsafe On ?
Select Sensor Failsafe ?
ENTER
NEXT
NEXT
Failsafe Off ?
NEXT
Select Transmitter Failsafe
ENTER
Select Transmitter
Failsafe ?
ENTER
NEXT
Failsafe Low ?
Failsafe High ?
Failsafe Off ?
NEXT
NEXT
NEXT
Trim 4.00 mA
Raise mA output ?
ENTER
NEXT
NEXT Lower mA output ?
Trim 4.00 mA ?
ENTER
NEXT = +
ENTER
NEXT = -
ENTER
Trim 20.00 mA
NEXT
Raise mA output ?
ENTER
NEXT
NEXT Lower mA output ?
Trim 20.00 mA ?
ENTER
NEXT = +
ENTER
NEXT = -
ENTER
NEXT
Trim Sensor
ENTER
Plus ?
NEXT
ENTER
NEXT Minus ?
Trim Sensor ?
ENTER
NEXT
NEXT
ENTER
Set blinking digit
increments blinking digit
sets digit
Select Language
ENTER
Select Language ?
ENTER
German ?
NEXT French ?
NEXT Spanish ?
NEXT English ?
NEXT
Display Mode
NEXT
Return to Operate Mode
Return to Operate ?
ENTER
Wait 5 seconds
NEXT
Display Mode
NEXT
MI EMT0111 A-(en)
TI20
9
5 MOUNTING
5 .3 Head Housing
NOTE
When installing the transmitter or mounting in a
housing, please observe the national safety
requirements.
The electronic with sensor connections code 2 and
3 are intended to be mounted into a head housing
as per DIN 43729 Type TZ-A/BL. Gauge slides as
per DIN 43735 respectively DIN 43762.
Terminal socket type . . . . . . . . . B
Max. numbers of terminals. . . . . 4
Distance between
terminals (overall size) . . . . . . . . max. 33 mm
5 . 1 DIN rail mounting
The electronic can be mounted at a DIN rail.
SENSOR CONNECTIONS CODE 1
STANDARD SCREWS
Pg 16
M24x1.5
DIN RAIL
BRACKET FOR DIN RAIL MOUNTING
5 . 2 Field Housing
Terminal socket
33
1.30
mm
in
10
0.39
~24
0.94
The electronic can be mounted in a field housing.
For delivery with LCD configurator the cover has a
glass window.
10
TI20
MI EMT0111 A-(en)
Mounting instructions for type BIA 409
The Transmitter must be mounted in an enclosure
providing a degree of protection of at least IP 20
per IEC 529, when installed in an indoor location,
and in an enclosure providing a degree of
protection of at least IP 44 per IEC 529, when
installed in an outdoor location.
Mounting instructions for type BN 409
A Temperature Transmitter without enclosure must
be mounted in an enclosure providing a degree of
protection of at least IP 54 per IEC 529.
The degree of protection of at least IP 54 to IEC
529 is only achieved if cable entries are used that
are suitable for the application and correctly
installed.
Cable entries must comply with Clause 5.3.2 of BS
6941.
6 DIMENSIONS
mm
in
1
42,8
1.685
SENSOR CONNECTIONS
CODE 1
STANDARD SCREWS
4
2
3
32,64
1.285
28,45
1.120
44,2
1.740
2
3
4
26,16
1.030
1
SENSOR CONNECTIONS
CODE 2
SOLDER TERMINALS
33
1.3
44,2
1.740
1
2
3
59,69
2.350
SENSOR CONNECTIONS
CODE 3
COMPACT SCREWS
4
29,5
1.160
MI EMT0111 A-(en)
11
TI20
One line
LCD configurator
Three line
LCD configurator
63,5
2.50
mm
in
1 0 0.0
- 2 0 0.0 0 C
CELSIUS
63,02
2.48
32,64
1.285
42,8
1.685
53,82
2.119
32,64
1.285
42,8
1.685
50,00
1.969
12
TI20
MI EMT0111 A-(en)
DIMENSIONS (continued)
Rail installation
mm
in
11
0.44
DIN RAIL
FIXING SCREW
BRACKET FOR DIN RAIL MOUNTING
Field housing
mm
in
X
DN50 OR 2 in
PIPE (BY USER)
29,4
1.16
9
0.35
1/2 NPT, 2 PLACES
10
0.39
WALL MOUNTING
NOTE 2
89
3.5
45
1.77
NOTES
DIMENSION X (NOTE 1)
WITHOUT LCD COFIGURATOR
WITH LCD COFIGURATOR
87
3.4
112
4.4
72
2.83
1. ALLOW 51 mm (2 in) CLEARANCE
FOR COVER REMOVAL
2. EXTERNAL COVER LOCK AND
GROUND SCREW LOCATION FOR
ELECTRICAL CLASSIFICATION
CODE EDZ AND FDZ
72
2.83
106
4.17
36
1.42
4.7
119
4.3
109
25
0.98
PIPE MOUNTING
MI EMT0111 A-(en)
TI20
7 METHODS OF
ELECTRICAL CONNECTION
13
7 .3 Top installation
For sensor connections codes (2) and (3):
7 . 1 Rail installation
SENSOR CONNECTIONS CODE 1
STANDARD SCREWS
DIN RAIL
BRACKET FOR DIN RAIL MOUNTING
1 Loosely mount clamp for
rail installation and electronic
2 Let electronic click into clamp rail
3 Tighten bolts for mounting
4 Connect sensor
5 Connect power supply
6 Mount LCD configurator, if necessary
1
2
3
4
5
6
Unscrew or unclap housing lid
Insert cable through cable joint
Connect sensor
Connect power supply
Mount electronic in the housing lid
Watch cable lines when closing housing lid
7 . 2 Mounting in Field housing
The temperature transmitter is fixed in the housing
with 2 screws. When required the LCD configurator
can be plugged in. The electronic automatically
detects it. For the sensor and the 4 ... 20 mA loop
an extra cable entry is available.
7 .4 Grounding
A functional grounding is not required.
In the event that the plant calls for a grounding
conduct connection (potential balance, protection
from electromagnetic influences) the
corresponding connections have to be produced
(ground housing).
14
TI20
MI EMT0111 A-(en)
8 SAFETY REQUIREMENTS
8 .1 General requirements
8 . 2 Explosion protection
This device satisfies the conditions for
safety class III according to EN 61010-1
(resp. IEC 1010-1).
(Only if ordered accordingly)
Work on electrical parts must be done by qualified
personnel if any power supplies are connected to
the instrument.
The instrument must be used for its designated
purpose and connected in accordance with its
connection diagram. Locally applicable installation
regulations for electrical equipment must be
observed, e.g. in the Federal Republic of Germany
DIN VDE 0100 and DIN VDE 0800.
The instrument must be operated with safety
extra-low voltage (SELV) or SELV-E (functional
extra-low voltage with reliable disconnection).
Safety precautions taken in the instrument may be
rendered ineffectual if the instrument is not
operated in accordance with the commissioning
and maintenance instructions.
Limitation of power supplies for fire protection have
to be observed due to EN 61010-1, appendix F
(resp. IEC 1010-1)
Technical specifications for explosion protection
see product specifications PSS EMT0111 A-(en)
and certificates of conformity
EX EMT0111 A-(de)(en)
For installations in contact with explosive
atmospheres, relevant national regulations and
installation conditions must be observed, e.g. in the
Federal Republic of Germany ElexV and
DIN VDE 0165.
Attention:
When repairing explosion-proof equipment,
observe the national regulations.
The following applies to the Federal Republic of
Germany:
Repairs involving parts required for explosionproofing must either be carried out by the
manufacturer or by authorized personnel and
confirmed by a certificate.
Cable entry
The cable entries for explosion proof application
Code EDZ, CENELEC EEx d or Code FDZ, FM
explosionproof are 1/2 - 14 NPT (according to
ANSI/ASME B1.20.1).
“EEx d” certified instruments must be connected
via cable glands resp. tube systems which satisfy
the requirements of EN 50018 and have a
separate certification.
Unused openings must be closed according to
EN 50018.
Cover lock
The cover must be locked to avoid opening under
hazardous conditions.
MI EMT0111 A-(en)
15
TI20
9 POWER SUPPLY
Direct supply
D. C. voltage Us = 12 ... 42 V 1)
The supply is via the signal circuit in twin conduct
technique to the connecting clamps plus and minus.
Transformer Power Supply Unit (MUS)
FOXBORO ECKARDT power supply units
( for example MUS925, see Product Specifications
PSS EII 0110 A-(en) ) are available for
intrinsically-safe applications.
Us = 12...42 V
Field
Control room
T
MUS
RL
T
4...20mA
Transmitter
Connected device
including
line resistance
(e.g. recorder)
Load:
The maximum permissible load resistor RB max.
is calculated according to the following formula:
RL max. =
U S − 12 V
0,02 A
Ω
Us = Supply voltage
Load characteristic for direct supply
RL
Ω
1500
1200
800
400
250
200
0
12
16 17 20
28
36
42 V US
The load resistor must be
min. 250 Ω with HART communication,
min. 200 Ω with FOXCOM communication.
1)
For explosion protected devices, please observe the safety
provisions as outlined in item 8
Us
0/4...20mA
Transmitter
Power
supply
RL
Connected device
(e.g. recorder,
controller, etc.)
RL max.
= 500 Ω
16
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MI EMT0111 A-(en)
10 START-UP
11 SHUT-OFF
Measuring start and measuring end were factory
set as per order specification or per standard.
– Prior to shut-down of the device measurements
are to be taken to prevent disturbances of the
operation.
– Turn off power supply.
Damping
A damping of 1 s (63%-time) has been set by the
factory.
Installation
Prior to start-up the installation has to be checked.
Upon correct mounting and connection to the
signal circuit, the transmitter is ready for operation.
Dismounting of the device is done in the reversed
sequence of mounting (⇒ item 5)
MI EMT0111 A-(en)
TI20
17
12 MAINTENANCE, REPAIR
The safety regulations as outlied in item 8 are to be
observed.
1 2 .1 Sight test at site
12.2.2 Voltage Measurement
The following configuration has to be set:
– Voltage Measurement
– Measuring range 0 ... 100 mV
The transmitter is maintenance-free.
1
2
3
4
1 2 .2 Functional test
Check by means of a LCD Configurator or a Hand
Terminal or a PC.
For a workshop check-up the following auxiliaries
are required:
– Power source 0 ... 150 mV or
potentiometer (0 ... 1000 Ohm)
– Digital Multimeter
– Power supply circuit DC 12 ... 42 V
12.2.1 Resistor Measurement
The following configuration has to be set:
– Resistor Measurement
– Measuring Range 6 ... 500 Ohm
1
2
3
4
Short
circuit
0 ... 150 mV
Procedure:
a) Bridge connecting clamps 3, 4
b) Connection of voltage generator to clamps 1, 2
c) Set voltage value
d) Check possible over range (115 mV)
e) Check possible line breakage
12.2.3 Measurement of the Output Signal
The measurement takes place directly in the signal
circuit.
Loop side
Short
circuit
Short
circuit
0 ... 1000 Ω
Supply U s
Procedure:
a)
b)
c)
d)
e)
f)
Bridge connecting clamps 1, 2, and 3, 4
Connection of potentiometer to clamps 2, 3
Indicate resistor value
Check possible over range (> 500 Ohm)
Check possible short circuit
Check possible line breakage
DC 12 ... 42 V
(4 ... 20 mA)
I
0000
Current meter
18
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MI EMT0111 A-(en)
13 OPERATION BY MEANS OF
HAND TERMINAL OR PC
1 3 . 2 Operation by means of a PC
(HART)
The operation of the digital transmitter can be done
also by means of a PC or a Hand Terminal.1)
To accomplish this, the digital transmitter has to be
connected to a power supply of 17 V ... 42 V.
A resistor of 250 Ω is to be connected to the supply
circuit in sequence. 2)
13.2.1 Hardware
The PC is required to have the following minimum
equipment:
1 3 .1 Operation by means of
Hand Terminal
The Hand Terminal enables direct communication
with the digital transmitter.
With the connection of the Hand Terminal the
contact structure of the connected transmitter is
automatically produced.
The type of device and the TAG number are shown
at the Hand Terminal. Various possibilities such as
configuration, indications, alignment, failure
seeking, etc. may be called up by means of the
Hand Terminal via menu.
For the Hand terminal HT991 for HART devices
see:
PSS EMO0100 A-(en)
Accessories for devices with HART Protokoll
and
MI EMO0110 A-(en)
HT991 Universal Hand terminal for HART Devices.
For the Hand Held Terminal HHT for FOXCOM
devices see:
PSS 2A-1Z3A
HHT I/A Series Hand Held Terminal
and
HHT Instruction Book 3372
I/A Series Hand-Held Terminal.
1)
2)
Please observe the safety provisions as outlined in item 8!
Also see item 3 Electrical connection.
PC IBM compatible, 386 processor
Operating system DOS 3.0
Main memory 4 MB
Screen monochrome, color or LCD
Interfaces RS232 for communication
Hard disk
1 parallel interface for printer
For the conversion of the serial interface RS232 to
the physical layer of the HART protocol the Modem
MOD991 (RS232 / FSK) with galvanic separator is
used.
13.2.2 Software
The operation is done at the PC with the MMI (Man
machine interface) for digital transmitters ABO991.
The program corresponds to the draft of standard
VDI/VDE 2187E pertaining to form, appearance,
operational sequence and arrangement.
Also see
PSS EMO0100 A-(en)
Accessories for devices with HART Protokoll
and
MI EMO0112 A-(en)
ABO991 Display and User Interface for HART
devices
1 3 . 3 Operation by means of a PC
(FOXCOM)
For FOXCOM devices see:
PSS 2A-1Z3C
PC10 Intelligent Transmitter Configurator
and
PC10 Instruction Book 3466
Intelligent Transmitter Configurator.
MI EMT0111 A-(en)
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19
14 TROUBLE SHOOTING
Fault
Possible cause
Remedy
No output signal
or output signal too low
No power supply or power supply too low
Connect Us = DC 12 .. 42 V
Load impedance too high
Check impedance
Output signal too high
Output signal fluctuates
LCD Configurator blank
Electrical connection exchanged
Connect correctly
Line break
Check sensor leads
Lower range value too low
Adjust lower range value resp. lower
value of the analog output
Upper range value too low
Adjust upper range value
Electronic defect
Check, Replace if necessary
Lower range value too low
Adjust lower range value
Upper range value too high
Adjust upper range value
Electronic defect
Check, Replace if necessary
Electronic
Check, Replace if necessary
No power supply or power supply too low
Check power supply
LCD Configurator defect
Replace LCD Configurator
20
TI20
MI EMT0111 A-(en)
Subject to alterations - reprinting, copying and translation prohibited. Products and publications are
normally quoted here without reference to existing patents, registered utility models or trademarks.
The lack of any such reference does not justify the assumption that a product or symbol is free.
FOXBORO ECKARDT GmbH
Postfach 50 03 47
D-70333 Stuttgart
Tel. # 49(0)711 502-0
Fax # 49(0)711 502-597
DOKT 533 956 058