Endress+Hauser smartgrad TMD833 User manual

BA019T/02/en/11.02
smartgrad TMD833
Field transmitter
Hart protocol
Installation and Operation Manual
Endress+Hauser
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Contents Page
Safety hints 3
Installation, setting up and operating personnel 3
1. System description 4
2. Mechanical installation 4
2.1 Mounting 4
3. Electrical connection 5
3.1 Terminal layout and power supply 5
3.2 Grounding of the loop circuit 5
3.3 Sensor connection 6
3.4 System integration 7
4. Operating overview 7
4.1 Configuration 7
4.2 Set up using a personal computer with Commuwin II 8
4.3 Set up using the hand held module 8
5. Operating parameter description 11
5.1 Standard configuration 11
6. Fault finding and repair 12
7. Technical data 13
smartgrad TMD833
2Endress+Hauser

Safety hints
Correct use
•The field transmitter displays scaled signals from thermometers and thermocouples
to a loop powered output. The optional display indicates the measurement regarding
the real temperature in the process.
•The manufacturer cannot be held responsible for damage caused by incorrect use
of the instrument. Changes must not be made to the unit.
•The unit has been designed for use in industrial areas and must only be used in an
installed condition.
•The process display is manufactured using state of the art technology and complies
to the directives. On the version for use in explosion hazardous areas the norms
EN 50014, EN 50020 are also complied with.
The unit could become dangerous if it is incorrectly installed or used.
Therefore please take note of all the safety hints and pictograms shown in these
installation and operating instructions. The meanings of the pictograms are:
"Note" means activities or sequences that, if not done correctly could
have an indirect influence on the units operation or could release an
unforeseen unit reaction.
"Caution" means activities or sequences that, if not done correctly
could lead to personal injury or faulty unit operation.
"Warning" means activities or sequences that, if not done correctly
could lead to serious personal injury, to a safety risk or total damage
to the unit.
Installation, initial setting up and operating personnel
•Mechanical and electrical installation, setting up and maintenance of the unit must
only be carried out by skilled and qualified personnel who have been authorised to
do so by the plant operator. The skilled personnel must have read and understood
these installation and operating instructions. They must follow them carefully.
•The unit must only be operated by trained personnel who have been authorised by
the plant operator. They must follow all instructions contained in this manual.
•Always make sure that the unit is correctly connected following the electrical
connection diagrams. When removing the unit cover the electrical contact protection
is lost (danger of electrical shock). The housing must only be opened by qualified
skilled personnel.
•The unit must only be used in an installed condition.
Repairs
Repairs must only be carried out by trained customer service personnel. If the unit is
to be returned to Endress+Hauser for repair, please include a description of the fault.
Technical advancement
The manufacturer reserves the right to improve and update the technical details.
smartgrad TMD833
Endress+Hauser 3

Wall mounting Horizontal pipe mounting Vertical pipe mounting
C97EV096.CDR
C97EV093.CDR
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1. System description
The smartgrad TMD833 is a microprocessor based 2 wire smart field transmitter for
temperature measurement. The transmitter and the optional LC Display are
encapsulated into IP 65 housing.
The instrument converts a resistance bulb change or a thermocouple generated mV
signal into process information (typical 4-20mA).
Otherwise generated Ohm or mV signals are also accepted as input signals.
The smartgrad TMD833 Field - Transmitter accepts one of the following inputs with a
single set of electronics:
•3 different RTD types
•10 different Thermocouple types
•Ohm, two different ranges
•mV
The smartgrad TMD833 is available as General Purpose, Intrinsically Safe or Explosion
proof design (Pending). Generally the input is galvanically isolated from the output;
another guarantee for high operational reliability.
2. Mechanical installation
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•The unit must be operated in an installed condition.
•The permissible operating ambient temperature is -40...+85°C (for the EEx ia version
please respect the temperature class in the certification).
•Protect the unit from heat sources.
Normally the installation requirements for both Ex and non-Ex units are the same.
The operator has to follow the rules regarding the specific Ex area class.
2.1 Mounting
TMD833 can be 2" pipe or wall mounted.
Please find the brackets for 2" pipe or wall
mounting inside the carton box.
smartgrad TMD833
4Endress+Hauser

C99MT004.CDR
3. Electrical connection
3.1 Terminal layout and power supply
The smartgrad TMD833 field transmitter utilises the standard 4...20 mA signal for
temperature, ohm or mV linear output.
The analogue output signal is available both for direct 4...20 mA or reverse 20...4 mA.
HART Protocol is superimposed onto the two wire loop powered output signal.
If self-diagnostics detect a sensor burnout or transmitter failure, the analogue signal
will be driven either below 3.8 mA or above 21 mA to alert the user. High or low failure
mode signal is user-selectable by software (Commuwin II or DXR275).
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1 Measured signal (+) 4 ... 20 mA
2 Measured signal ( ) 4 ... 20 mA
3 Together with (1), Test signal mA
Grounding
•TMD833 EEx ia Version - CESI EX-99.E.003X
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The temperature transmitter TMD833 (EEx ia version) shall be supplied by associated
apparatus with galvanic insulation certified according to EN 50.014 / 50.020
standards, type of protection EEx ia, with the electrical characteristics indicated in the
certification.
In flammable atmosphere the electrical characteristics on the power / loop side and
also on the sensor side must correspond to the certification.
3.2 Grounding of the loop circuit
Both the terminal layout and the connection values of the field transmitter relate to the
Ex version. The unit is only meant for use in a 4 ... 20 mA current loop circuit.
Potential equilibrium must be garanteed on the current loop (inside and outside the
Ex hazardous area). In order to achieve this use the earthing (ground) lug on the
housing.
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4...20 mA
Explosion hazardous area Non hazardous area
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Push the sensor cable in
and connect the sensor
signal (see below)
Pull the display outside the
plastic case with a lever (i.e. a
screwdriver) between the case
and the display edge
Unscrew and pull the
display plastic case
•J7 in position 1-2 bridges the J2 2-3 terminals
J7 in position 2-3 does not bridge
•J8 in position 1-2 bridges the J2 4-5 terminals
J8 in position 2-3 does not bridge
Female
connector
display
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JUMPERS:
J7 : 2,3
J8 : 2,3
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J7 : 1,2
J8 : 2,3
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J7 : 2,3
J8 : 2,3
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JUMPERS:
J7 : 1,2
J8 : 1,2
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Loosen the cover
3.3 Sensor connection
For installing the sensor connection wires, open the cover on the opposite side of the
cable entry (display cover), see figure 1.
If the instrument has a display, pull the display outside the plastic case, see figure 2.
Remove the plastic case, see figure 3, and find the fix board for the wires.
Push the sensor cable in, through the cable entry on the bottom of the instrument to
the connection room, see figure 4.
Sensor signal connection
Attention! : Regarding the type of sensor, the bridges must be installed in J7/J8 on the
right pins.
PUSH
1234
smartgrad TMD833
6Endress+Hauser

System bus
Control system
Commuwin II
4 ... 20 mA
- max. 64 Instruments -
C99MT006.CDR
FXN672 ZA67.
E+H Rackbus
3.4 System integration
The smartgrad TMD833 field transmitter with HARTProtocol can be integrated into
a 19" rack with the 19" Power supply FXN672.
Integration with HART Multiplexer in generic Fieldbus system. Direct reading of the
process variable with Digital accuracy.
4. Operating overview
Operation as well as the parameter settings and their function are exactly the same as
General Purpose - EEx ia or EEx d - Version of smartgrad TMD833 field transmitter.
Please note the following paragraphs for operation and the notes for setting up.
4.1 Configuration
The complete configuration of smartgrad TMD833 field transmitter can be made
remotely with HART protocol. The digital communication is superimposed on the
4 ... 20 mA output signal and transmits condition information during the operation
without disturbing the measurement value.
smartgrad TMD833
Endress+Hauser 7

Commuwin II Commubox - Interface FXA191*
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HART Communication requires a minimum loop
resistance of 250 Ohms. Do not communicate with
the instrument when power is below 13 V DC at the
transmitter terminals.
With the same connection it is also possible
to use the E+H interface Commubox FXA191
instead of the hand held module !
C99MT007.CDR
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4.2 Set up using a personal computer with Commuwin II
* The description of the wiring FXA191 is indicated
in chapter 4.3 Set up using hand held module.
The TMD833 set up is via a PC and the software Commuwin II (FXS113). Connection
to the PC is via the Commubox (FXA191). Parameter matrix menu in Commuwin II is
as follows:
4.3 Set up using the hand held module
Below are several examples to set up the smartgrad TMD833 field transmitter with
DXR275 according the most important parameters.
Description of configuration for the following parameters:
•Sensor Input
•RTD connection
•Measuring Unit
•Measurement Range
•Cold Junction
•Input Filter
•Offsets
•Default Values
Connection:
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MEASURED
TEMP. TEMP. COMPENSATION INPUT FILTER RJ MODE RJ EXTERNAL VALUE BIAS INPUT 1
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INPUT 1
CONFIG. MEASURING UNIT 1 DIR. / REV. ACTION VALUE FOR 4 mA VALUE FOR 20 mA OPERATION MODE 1 2 WIRE COMP. SAFETY ALARM INSTRUM. ADDR.
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CODE LAST DIAGNOSTIC SIMULATION SIM. VALUE DEFAULT VALUES
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NUMBER SOFTWARE VERSION MODIFICATION NO. SERIAL NUMBER
smartgrad TMD833
8Endress+Hauser

smartgrad TMD833
Endress+Hauser 9

Parameters DXR 275 / TMD833
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Measuring unit
Sensor input
Input filter
Temp. compensation
RJ mode
RJ external value
Calibration Chan. 1 Bias Input 1
R/RTD connection
R/RTD 2 - wire comp.
Output calibration Output value (mA)
Dir./rev. Action
Value for 4 mA
Value for 20 mA
Sensor Error
Service Error code
Last diagnostic
Simulation mode
Simulation value
Default values
Device information Descriptor
Message
Date
Serial number
Software version
Modification n.
Universal Rev.
Fld dev Rev.
Software Rev.
HART output Poll addr.
Num req preams
Burst mode
Burst option
PV (Measurement)
AO (mA)
smartgrad TMD833
10 Endress+Hauser

5. Operating parameter description
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V0H0 Process Variable (PV)
Measured Temperature
PV regarding the selected unit [°C or °F] V2H2, corrected by bias value
entered in field V0H5, in case of error the PV will be 9999 or -9999
V0H1 Cold junction (RJ)
Temperature
Temperature of cold junction (terminal temperature) according to the
selected unit [C or F] V2H2 when "internal" RJ Mode V0H3 is defined.
V0H2 Input Filter
Selection range: 0 .. 32s
Damping of the input signal in seconds, according to the reaction time
to filter the input.
V0H3 Cold junction (RJ) Mode
Select: Internal or External
The smartgrad TMD833 field transmitter has an "internal" cold junction
compensation for thermocouples. If "external" is selected, the reference
temperature must be indicated in V0H4.
V0H4 (RJ) External Value, Selection range:
-50°C .. +94°C or -58°F .. +201,19°F
Before setting up the External Value of Cold junction, the Measuring
Unit [°C or °F] in V2H2 must be defined.
V0H5 Bias Input
Selection range: -10 .. 10 Units
Parallel shifting of the Linearisation to correct Sensor drifts or
Thermometer installation inaccuracy.
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V2H0 Input Sensor, Selection
RTD Thermometer: Pt100, Ni100, Pt1000
Thermocouples: Type B, E, J, K, L, R, S, T, N or U
Voltage: mV Full scale
Resistance: 400 Ohms Full scale or 4000 Ohms Full scale
Not used: Pt100/TT-CAL, Pt100/TT-CAL and Ni/TT-CAL
V2H2 Measuring unit
Select: °C or °F
Selection of Process Variable unit, the unit is applied to the fields
V0H0 - V0H1 - V0H4 - V2H4 - V2H5
V2H3 Output Action
Select: DIR. or REV. DIR. = Direct: 4 .. 20 mA / REV. = Reverse: 20 .. 4 mA
V2H4 (PV) Value for 4 mA
Selection regarding Sensor Type
Zero value of PV in the selected unit. Before setting up this value, the
Measuring Unit [°C or °F] in V2H2 must be defined. The value must be
internal the input range of the thermometer.
V2H5 (PV) Value for 20 mA
Selection regarding Sensor Type
Upscale value of PV in the selected unit. Before setting up this value,
the Measuring Unit [°C or °F] in V2H2 must be defined. The value must
be within the input range of the thermometer.
V2H6
Operation Mode
Resistance wire connection
Select: 2 WIRE, 3 WIRE or 4 WIRE
Connection to the Sensor, applicable to RTD Thermometers and
Resistance input.
V2H7 2 WIRE Compensation
Selection range: 0 .. 30 Ohms
If the 2 WIRE connection in V2H6 is selected, the value to be inserted is
the resistance of the connection wires with 0.01 Ohms resolution.
V2H8 Safety Alarm
Select: MAX. or MIN.
MAX.: Alarm output = 21 mA / MIN.: Alarm output = 3.8 mA.
If self-diagnostics detect a sensor burnout or transmitter failure, the
analogue signal will be driven to the selected value.
V2H9 Instrument address
Selection range: 0 .. 15
Instrument address in the BUS structure. For point to point
communication, the address must be 0 !
For multi-drop connection the address can be set from 1 to 15
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V9H0 Error Code This field shows the transmitter status, see chapter 6. for details.
V9H1 Last Diagnostic This field shows the previous status of the instrument.
V9H5 Simulation
Select: OFF or ON
Set up of output simulation. If ON is selected, the analogue signal will
be driven to the value indicated in V9H6 !
V9H6 SIM. Value
Selection range: 3.8 mA .. 21 mA
The output simulation value for a "Test" period can be entered here, if
simulation is selected in field V9H5 !
V9H9 Default Values
Putting 833 in this field sets all the parameters to the default values,
see chapter 5.1 !
Note: The indicated BUS address will not be changed.
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VAH0 TAG Number
An 8 character alpha-numeric string is available to enter measuring
point designation. With Commuwin II configuration the first digit must
be a letter or _ !
VAH2 Software Version Contains information relating to the instrument software version.
VAH3 Modification Contains information relating to the smartgrad TMD833 field transmitter.
VAH4 Serial Number Contains information relating to the circuit board production.
5.1 Standard configuration
Unless otherwise requested the smartgrad
TMD833 field transmitter is delivered with default
values according to the following standard
setting:
Pt100 Sensor, Measuring unit [°C]
Measuring range: -200°C .. +850°C
Output: 4 .. 20 mA
Safety Alarm: MIN.: Alarm output = 3.8 mA
Other Values to zero.
These default values will also be implemented, if the code 833 is placed in the field V9H9 !
smartgrad TMD833
Endress+Hauser 11

6. Fault finding and repair
During production all units go through a number of quality control stages. In order to
assist you in fault finding a number of possible faults, causes and cures are listed
below:
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Fault messages; the current error is transmitted with the measured value and
displayed in field V9H0 of the matrix. The last error code is displayed in V9H1 !
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0 Normal operation !
011 Alarm
Hardware error
or
Sensor fail
Appears if the Sensor is broken. Check the cable
connection between Thermometer and Transmitter.
If there is no fault from the Sensor to the smartgrad
TMD833 field transmitter, call the Endress+Hauser
Service in your Country.
012 Alarm Over - scale
The measurement is above the range limit for
example Pt100 >850°C or >390,48Ω. Check in the
matrix in position V2H0 if the right sensor is selected.
Appears if the Sensor isn’t working correctly.
013 Alarm Under - scale
The measurement is below the range limit for
example Thermocouple Type J <-200°C or
<-7.89mV. Check in the matrix in position V2H0 if the
right sensor is selected. Appears if the Sensor isn’t
working correctly.
201 Warning Over - range
The measurement is above the selected range for
example Thermocouple Type J:
Range 0..500°C ⇒>500°C or >27,393mV. Check in
the matrix in position V2H5 the value for 20mA.
Appears if the Sensor isn’t working correctly.
202 Warning Under - range
The measurement is below the selected range for
example Pt100: Range 0..200°C ⇒<0°C or <100Ω.
Check in the matrix in position V2H4 the value for
4mA. Appears if the Sensor isn’t working correctly.
203 Warning Up - Download
of data activated
Appears during download from computer,
measurements cannot be made during this period.
This warning disappears by itself.
204 Warning Reset activated Appears shortly during start-up. This warning
disappears by itself.
20 Warning Display error
Option without Display, the display is not available,
the plug of the display is not in or the display is
defect.
The self - monitoring system of the smartgrad TMD833 field transmitter differentiates
between alarms and warnings.
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•The smartgrad TMD833 field transmitter is not measuring.
•An error code is displayed in matrix field V9H0 to help locate the fault.
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•The smartgrad TMD833 field transmitter continues to measure.
•An error code is displayed in matrix field V9H0 to help locate the fault.
smartgrad TMD833
12 Endress+Hauser

Manufacturer Endress+Hauser
Description smartgrad TMD833
Unit function Temperature transmitter for the installation in the field with
HART Protocol and galvanic insulation.
Transmitter
Transforming resistance or voltage signals into 4 ... 20 mA
current signals, scalable measured signal and output
signals. LC Display optional.
Measuring
principle
Measured value recording using analogue/digital
conversion, the recorded values are then analysed and
retransmitted as a 4 ... 20 mA measurement signal loop via
a digital/analogue converter.
Additionally digital information is superimposed on this
4 ... 20 mA signal. This is used for communication with a
relative communications unit or system.
Measurement
system
Microprocessor controlled analogue/digital and
digital/analogue conversion with integrated fault monitor.
RTD input
Types Pt100 and Pt1000, according to IEC751;
Ni100 according to DIN 43 760
Measurement
range Pt100, Pt1000: -200...+850 °C; Ni100: -60...+180 °C
Minimum span

10 °C
Connection 2-, 3-, 4-wire
Sensor current < 0.2 mA
Resistance input
Measurement
range 0

...400 Ωor 0

...4000 Ω
Minimum span

Range 0-400 Ω : 5 Ω / Range 0-4000 Ω : 50 Ω
Connection 2-, 3-, 4-wire
Sensor current < 0.2 mA
Thermocouple input (TC)
Measurement type B, E, J, K, N, R, S, T (IEC 584); L, U (DIN 43 710)
Measuring ranges/
minimum span Type Measuring range Minimum span

B+400 to +1820 °C 100 °C
E -200 to +1000 °C 20 °C
J -200 to +1000 °C 20 °C
K -200 to +1370 °C 20 °C
L -200 to +900 °C 20 °C
N -180 to +1300 °C 20 °C
R -50 to +1760 °C 25 °C
S -50 to +1760 °C 20 °C
T -200 to +400 °C 20 °C
U -200 to +600 °C 20 °C
 Non linearised range from 0 ... +400°C is admissible
Input impedance >10 MΩ
7. Technical data
General information
Application areas
Operation and system construction
Input
smartgrad TMD833
Endress+Hauser 13

Input resolution Type Input resolution
B0.8 °C for T> 1000 °C; 1 °C for T< 1000 °C
E 0.15 °C for T> -100 °C; 0.3 °C for T< -100 °C
J0.15 °C for T> 0 °C; 0.2 °C for T< 0 °C;
0.4 °C for T< -150 °C
K0.2 °C for T> 0 °C; 0.3 °C for T< 0 °C;
0.4 °C for T< -150 °C
L 0.15 °C for T> -50 °C; 0.3 °C for T< -50 °C
N0.2 °C for T> 300 °C; 0.3 °C for T< 300 °C;
0.5 °C for T< 0 °C
R0.3 °C for T> 500 °C; 0.4 °C for T< 500 °C;
1 °C for T< 200 °C
S 0.4 °C for T> 200 °C; 0.8 °C for T< 200 °C
T0.15 °C for T> 100 °C; 0.2 °C for T< 100 °C;
0.4 °C for T< 0 °C
U0.15 °C for T> 200 °C; 0.25 °C for T< 200 °C;
0.4 °C for T< -100 °C
Cold junction drift 0.06 °C/°C in the range -40 ... +85 °C (Ref.: 20°C)
Cold junction
compensation selectable internal or fixed by software
Voltage input (mV)
Measurement
range -10.0 ... +80.0 mV
Minimum span

3 mV
Input impedance >10 MΩ
Input resolution 3 µV
Note

Spans can be set to each value below the minimum
because the D/A convertor accuracy is dependent on the
resolution; the analogue resolution can be calculated as
follows:
100 x Input resolution
Resolution [%] =
Span set

When a value below 1 Ωis applied to the input, a sensor
error is detected (sensor short circuit).
Output signal 4 ... 20 mA or 20 ... 4 mA
Failure signal ≅3.8 mA or ≅ 21.0 mA presettable
Damping 0 ... 32 s presettable
Load Power supply - 13.0 V / 0.022 A
Power supply effect 0.003% / V
D/A resolution 0.5 µA
D/A converter
accuracy ±0.025% of the calibrated span
Analogue
accuracy
Analogue accuracy, referenced to the output, can be
calculated as follows:
D/A converter accuracy + Digital accuracy
Example: Pt100 input, 0...100°C calibrated span, ±0.025%
of calibrated span + ± 0.15 K Digital accuracy = ±0.175 K
Total accuracy
Long term stability
(12 months) ±0.1% of the span or ±0.1°C
Input
(continued)
Output
smartgrad TMD833
14 Endress+Hauser

RTD input
Digital
accuracy ±0.15 °C, contains calibration and linearisation errors
Input resolution 0.1 °C
Linearity 0.15 °C
Linearisation Using software module
Influence of
connection cable
2-wire: Compensation per software
3-wire: no influence, when R < 100 Ω
4-wire: no influence
Resistance input
Digital
accuracy
Range 0-400 Ω : ±0.04 Ω / Range 0-4000 Ω : ± 0.8 Ω
contains calibration errors
Input resolution Range 0-400 Ω : ± 0.008 Ω / Range 0-4000 Ω : ±0.16 Ω
Linearity Range 0-400 Ω : ±0.04 Ω/ Range 0-4000 Ω : ±0.8 Ω
Influence of
connection cable
2-wire: Compensation per software
3-wire: no influence, when R < 100 Ω
4-wire: no influence
Thermocouple input (TC)
Digital
accuracy Type Digital accuracy
B 1.5 °C for T> 1000 °C; 2.5 °C for T< 1000 °C
E 0.3 °C for T> -100 °C; 0.6 °C for T< -100 °C
J0.3 °C for T> 0 °C; 0.4 °C for T< 0 °C;
0.8 °C for T< -150 °C
K0.4 °C for T> 0 °C; 0.6 °C for T< 0 °C;
0.8 °C for T< -150 °C
L 0.3 °C for T> 0 °C; 0.6 °C for T< 0 °C
N0.4 °C for T> 300 °C; 0.6 °C for T< 300 °C;
1 °C for T< 0 °C
R0.6 °C for T> 500 °C; 0.8 °C for T< 500 °C;
2 °C for T< 200 °C
S 0.8 °C for T> 200 °C; 1.5 °C for T< 200 °C
T0.3 °C for T> 100 °C; 0.4 °C for T< 100 °C;
0.8 °C for T< 0 °C
U0.3 °C for T> 200 °C; 0.5 °C for T< 200 °C;
0.8 °C for T< -100 °C
The digital accuracy contains calibration and linearisation
errors. Cold junction error: 0.5°C at 25°C.
Voltage input (mV)
Digital
accuracy 12 µV, contains calibration errors
Input resolution 3 µV
Linearity 12 µV
Temperature drift 30 ppm/°C for digital reading
50 ppm/°C for analogue output
Warm-up time ≈60 s
Reaction time ≈400 ms (update time)
Measurement accuracy
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Installation conditions
Installation angle No limitation
Ambient conditions
Ambient
temperature
-40 ... +85 °C for standard version (IEC 68-2-14)
(for Intrinsically safe version, see table next page)
Storage temperature -45 ... +90 °C (IEC 68-2-14)
Climatic class Humidity 10 ... 95% (IEC 68-2-14) without condensation
Ingress protection Housing IP65
Shock according to IEC 68-2-31
Vibration according to IEC 68-2-6
EM immunity
Field strength to EN 50011 : 1991, Group 1, Class B,
ENV 50140 (1993) / ENV 50204 (1995)
ESD to EN 61000-4-2, Level 3:
6 kV contact discharge, Criteria A
Burst to EN 61000-4-4, Level 3:
I/O Lines: 1 kV, Criteria A ; 2 kV, Criteria B
Surge to EN 61000-4-5,
I/O Lines: 1 kV Line to earth, Criteria A
Conducted HF to EN 61000-4-6,
0,15 ... 80 MHz, 10 V, Criteria A
Judgement
Requirements according to technical specification,
EN 61326-1 (industrial locations) and NAMUR NE21
are fulfilled.
Model Housing T4
Weight approx. 1200 g
Materials
Housing
Cast alluminium housing with protective
polyester-based powder coating RAL 5012 (blue),
cover RAL 7035 (grey), seawater resistant ,
saltwater spray test DIN 50021 (504 h) passed
Nameplate 1.4301 (SS 304)
O-ring NBR (for cover seal)
Electrical connections PG 13.5 with Skintop cable gland or
Conduit entry M20 x 1.5, 1/2" NPT, G 1/2"
Output terminals Screw terminals, 2.5 mm2(13 AWG), max. wires
Sensor connections PG 13.5 with Skintop cable gland or
M20 x 1.5, 1/2" NPT, G 1/2"
Sensor terminals Spring terminals, 0.2 (24 AWG) to 1.5 mm2(16 AWG),
max. wires
Display
Type 4 digit LCD
Range -9999 to +9999
Temperature
resolution
0.1 (up to 999.9)
1 (> 1000)
Resistance/mV
resolution
0.01 (up to 99.99)
0.1 (up to 999.9)
Bargraph 28 segments
Operating surface
HART hand operating module DXR 275 or Commuwin II
software package, operational under Windows 3.11/95/NT,
for setting up, transmission and visualisation of measured
data.
Application conditions
Mechanical construction
Display and operating level
smartgrad TMD833
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Power supply

13 to 36 V DC for general purpose version
13.0 to 30 V DC for EEx-d and EEx-i versions
Voltage drop 13 V
Allowable ripple 5% of power supply, within the admitted voltage range
Galvanic separation Isolation input / output : 500 V AC for 1 minute
Isolation input / ground : ≤250 V AC
Note

Hart communication protocol requires a min. loop
resistance of 250 Ω.
The power supply must consider the
voltage drop across the resistor, to guarantee the minimum
13 V across transmitter terminals:
V
min. supply
= 13 V + (0.022 x R
loop
)
Protocol HART 
Transmission speed 1200 Baud
Number of addresses 16 (0 to 15)
Max connection
length 4 ... 20mA
3000 m (see also Hart Smart Communication Protocol,
Physical Layer, Specification Rev. 7.1)
According to
EExiaIIC
4...20mA:Ci ≅10µF
:Li≅20µH
Sensor : CΟ≤ 3.0 µF
:LΟ≤3.0 mH
Max.voltageUi=30V
Max. current Ιi =100 mA
Max. power Pi = 0.75 W
Max. ambient
temperature T4 = 85°C ; T5 = 70°C ;T6 = 55°C
Note

The temperature transmitter TMD833 (EEx ia Version)
shall be supplied by associated apparatus with galvanic
insulation certified according to EN 50.014 / 50.020
standards, with the electrical characteristics above
indicated.
Thermoprobe connection Sensor input [EEx ia]
Max. voltage Uo = 6.78 V
Max. current Ιo = 10.3 mA
Max. power Po = 17.3 mW
Explosion proof version
Certificate number
According to
EEx d IIC T6
Power supply
Serial connection
Certificatesand Approvals
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Technical alterations reserved.
Recommendation
89/336/EW
G
Instrinsically safe version
Certificate number
CESI no. EX-99.E.003X [Special conditions, see Note (4)]
m
ATEX II 1 G EEx ia IIC T6, T5, T4 - CESI 99 ATEX 077
CE-mark
II 2 G
, T5, T4
II 1 G
T6, T5, T4
m
CESI 00 ATEX 045
Ui
36 VDC
≤

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