weed instrument Sensor-Mate 7600D User manual

BA 156R/24/ae/05.04 Model 7600D
DIN Rail Mount Sensor-Mate®
PC Programmable Temperature
Transmitter
Operating instructions

Model 7600D
2Weed
Safety message
Instructions and procedures in the operating instructions may require special precau-
tions to ensure the safety of the personnel performing the operations. Information that
potentially raises safety issues is indicated by safety pictograms and symbols. Please
refer to the safety messages before performing an operation preceded by pictograms
and symbols, see chapter 1.4.
Though the information provided herein is believed to be accurate, be advised that the
information contained herein is NOT a guarantee of satisfactory results. Specifically, this
information is neither a warranty nor guarantee, expressed or implied, regarding
performance; merchantability, fitness, or other matter with respect to the products; and
recommendation for the use of the product / process information in conflict with any
patent. Please note that the manufacturer reserves the right to change and / or improve
the product design and specifications without notice.
#Warning!
Failure to follow these installation guidelines could result in death or serious
injury.
– Make sure only qualified personnel perform the installation.
Explosions could result in death or serious injury.
– Do not remove the connection head cover in explosive atmospheres when the circuit
is live.
– Configuration of the transmitter is not permitted in a hazardous area, make sure the
transmitter setup is done before the transmitter will be installed in hazardous area.
– Verify that the operating atmosphere of the transmitter is consistent with the appro-
priate hazardous locations certifications.
– All connection head covers must be fully engaged to meet explosion-proof require-
ments.
– Do not remove the thermowell while in operation.
Electrical shock could cause death or serious injury.
– Use extreme caution when making contact with the leads and terminals.
Brief overview
Using the following short form instructions you can commission your system easily and
swiftly:
Safety notes Page 4
Ð
Installation Page 6
Ð
Wiring Page 8
Ð
Display and operating elements
Preparing the communication with PC configuration software
Page 10
Ð
Instrument configuration (including a description of the unit
functions)
A complete description of all the functions as well as a detailed
overview of the functionality can be found in this chapter.
Page 11

Model 7600D Weed
Weed 3
Table of contents
1 Safety notes . . . . . . . . . . . . . . . . . . . . 4
1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Installation, commissioning and operation . . . 4
1.3 Operational safety . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Safety pictograms and symbols . . . . . . . . . . . 5
2 Identification . . . . . . . . . . . . . . . . . . . 6
2.1 Unit identification . . . . . . . . . . . . . . . . . . . . . . . 6
3 Installation. . . . . . . . . . . . . . . . . . . . . 6
3.1 Installation conditions . . . . . . . . . . . . . . . . . . . 6
3.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2 Measurement unit connection . . . . . . . . . . . . . 8
4.3 Ground the Transmitter . . . . . . . . . . . . . . . . . . 9
5 Operation . . . . . . . . . . . . . . . . . . . . . 10
5.1 Communication . . . . . . . . . . . . . . . . . . . . . . . 10
6 Commissioning . . . . . . . . . . . . . . . . 11
6.1 Installation and function check . . . . . . . . . . . 11
6.2 Switch on the device . . . . . . . . . . . . . . . . . . . 11
6.3 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 Maintenance . . . . . . . . . . . . . . . . . . 14
8 Accessories . . . . . . . . . . . . . . . . . . . 14
9 Trouble-shooting. . . . . . . . . . . . . . . 14
9.1 Trouble-shooting instructions . . . . . . . . . . . . 14
9.2 Application errors without messages . . . . . . 14
10 Technical Data. . . . . . . . . . . . . . . . . 17
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Safety notes Model 7600D
4Weed
1 Safety notes
Safe and secure operation of the DIN rail transmitter can only be guaranteed if the
operating instructions and all safety notes are read, understood and followed.
1.1 Designated use
•The unit is a presettable temperature DIN rail transmitter for resistance temperature
detectors (RTD), thermocouple (TC) as well as resistance and voltage sensors. The
unit is constructed for mounting on a DIN rail.
•The manufacturer cannot be held responsible for damage caused by misuse of the
unit.
•Separate Ex documentation is part of this operating manual, for measurement sys-
tems in hazardous areas. The installation conditions and connection values indicated
in these instructions must be followed!
1.2 Installation, commissioning and operation
The unit is constructed using the most up-to-date production equipment and complies
to the safety requirements of the local guidelines. The temperature transmitter is fully
factory tested according to the specifications indicated on the order. However, if it is
installed incorrectly or is misused, certain application dangers can occur. Installation
and wiring of the unit must only be done by trained, skilled personnel who are
authorized to do so by the plant operator. This skilled staff must have read and
understood these instructions and must follow them to the letter. The plant operator
must make sure that the measurement system has been correctly wired to the
connection schematics.
Electrical temperature sensors such as RTD's and thermocouples produce low-level
signals proportional to their sensed temperature. The temperature transmitter converts
the low-level sensor signal to a standard 4 to 20 mA DC signal that is relatively
insensitive to lead length and electrical noise. This current signal is then transmitted to
the control room via two wires.
The transmitter needs to be commissioned before installation in a hazardous area.
Configuration of the device in explosion area is not allowed. Make sure the instruments
in the loop are installed in accordance with intrinsically safe or non-incendive field wiring
practices before connecting in an explosive atmosphere.
The transmitter electronics module is permanently sealed within the housing, resisting
moisture and corrosive damage. Verify that the operating atmosphere of the transmitter
is consistent with the appropriate hazardous locations certifications.
#Warning!
Electrical shock could cause death or serious injury. If the sensor is installed in a high
voltage environment and a fault or installation error occurs, high voltage may be present
on the transmitter leads and terminals.

Model 7600D Safety notes
Weed 5
1.3 Operational safety
Hazardous areas
When installing the unit in a hazardous area, the national safety requirements must be
met. Make sure that all personnel are trained in these areas. Strict compliance with
installation instructions and ratings as stated in this documentation is mandatory.
The measuring device complies with the general safety requirements in accordance
with IEC61010, the EMC requirements of IEC61326 and NAMUR recommendation NE21
and NE43.
Technical advancement
The manufacturer reserves the right to modify technical data without prior notice. Your
distributor can supply you with current information and updates to these Operating
Instructions.
1.4 Safety pictograms and symbols
Safe and reliable operation of this unit can only be guaranteed if the safety notes and
warnings in these operating instructions are followed. The safety notes in these
instructions are highlighted using the following symbols.
!Note!
This icon indicates activities and actions that, if not followed correctly, could have an
indirect influence on the unit operation or could lead to an unforeseen unit reaction.
"Caution!
This icon indicates activities and actions that, if not followed correctly, could lead to
faulty device operation or even damage to the unit.
#Warning!
This icon indicates activities and actions that, if not followed correctly, could lead to
personal injury, a safety risk or even total damage to the unit.
120
Explosion protected, type examined operating equipment!
If one of these icons is on the device’s nameplate, the device can be used in hazardous
areas.
-Hazardous area!
This symbol identifies the hazardous area in the diagrams in these Operating
Instructions.
– Devices that are used in hazardous areas or cables for such devices must have the
corresponding type of protection.
.Safe area (non-hazardous areas)!
This symbol identifies the non-hazardous area in the diagrams in these Operating
Instructions.
– Devices in non-hazardous areas must also be certified if connection cables run
through a hazardous area.

Identification Model 7600D
6Weed
2 Identification
2.1 Unit identification
2.1.1 Legend plate
For model name, type and brand please see legend plate on the temperature
transmitter.
CE Mark, declaration of conformity
4
44
4
The devices are designed to meet state-of-the-art safety requirements, have been
tested, and left the factory in a condition in which they are safe to operate. The devices
comply with the applicable standards and regulations in accordance with IEC61010
"Protection Measures for Electrical Equipment for Measurement, Control, Regulation
and Laboratory Procedures" and with the EMC requirements of IEC61326.The
measuring system described in these Operating Instructions thus complies with the
statutory requirements of the EC Directives. The manufacturer confirms successful
testing of the device by affixing to it the CE mark.
3 Installation
3.1 Installation conditions
•When installing and operating the unit, please take note of the allowable ambient
temperature (see chapter 10 "Technical Data").
•When using the unit in a hazardous area, the limits indicated in the certification must
be adhered to (see control drawing).
3.1.1 Dimensions
The DIN rail mount transmitter dimensions can be found in chapter 10 "Technical data".
3.1.2 Installation point
Installation on DIN rail according to EN 50 022-35, e.g. in control panel.
3.1.3 Installation angle
There are no limits as to the angle of installation.

Model 7600D Installation
Weed 7
3.2 Installation
3.2.1 Typical installation
For installation, proceed as follows:
•Attach the temperature transmitter to a suitable rail or panel.
•Attach thermowell (1) to pipe or process container wall. Install and tighten the
thermowell before applying process pressure.
•Attach necessary extension nipples and adapters (3) to the thermowell (1). Seal the
nipple and adapter threads with teflon tape.
•Screw the sensor (2) into the thermowell (1). Install drain seals if required for harsh
environments or to satisfy code requirements.
•Screw the connection head (4) to the sensor assembly.
•Attach the sensor lead wires to the connection head terminals.
•Connect sensor wires from the terminals inside the head to the transmitter (5).
•Install and tighten the connection head cover. Enclosure covers must be completely
engaged to meet explosion-proof area requirements.
Fig. 1: Installation of DIN rail mount temperature transmitter
1 thermowell
2sensor
3 extension nipples and adapters
3a spring loaded fitting
4 connection head
5 temperature transmitter

Wiring Model 7600D
8Weed
4Wiring
4.1 Overview
Terminal layout
Fig. 2: DIN rail transmitter wiring
4.2 Measurement unit connection
"Caution!
•Switch off power supply before opening the housing cover. Do not install or connect
the unit to power supply. If this is not followed parts of the electronic circuit will be
damaged.
•If the device has not been grounded as a result of the housing being installed, we
recommend grounding it via one of the ground screws.
•Sensors:
Connect the sensor cables to the respective DIN rail transmitter terminals (Terminals
1to 4) by following the wiring diagram.
•Output signal and power supply:
Connect the cable wires from the power supply to terminals5and 6according to the
wiring diagram. For convenient installation, the connection is designed as a
removable plug, so the connection can be made on the terminals, then plug in the
connection socket to the transmitter housing.
!Note!
The screws on the terminals must be screwed in tightly.
•PC configuration (SETUP socket):
Connect the SETUP connection cable (see Fig. 2).

Model 7600D Wiring
Weed 9
Fig. 3: Connection to PC for configuration
During configuration the temperature transmitter can be connected to a power source,
either a 9 V battery or a power supply unit (see chapter 5.1 ’Communication’)
!Note!
The screws on the terminals must be screwed in tightly. Temperature transmitter
configuration during measurement operation is possible. There is no need to
disconnect cables!
4.3 Ground the Transmitter
The transmitter will operate with the current signal loop either floating or grounded.
However, the extra noise in floating systems affects many types of readout devices. If
the signal appears noisy or erratic, grounding the current signal loop at a single point
may solve the problem. The best place to ground the loop is at the negative terminal of
the power supply. Do not ground the current signal loop at more than one point. The
transmitter is galvanically isolated to 2 kV AC (from the sensor input to the output), so
the input circuit may also be grounded at any single point. When using a grounded
thermocouple, the grounded junction serves as this point.

Operation Model 7600D
10 Weed
5 Operation
5.1 Communication
The temperature transmitter must be set up using a PC and configuration set. The
following points must be taken into account if trouble-free setup is to be achieved:
•Configuration software installation
•Connect the temperature transmitter to the PC using the connection cable from the
configuration set.
5.1.1 Configuration software installation
5.1.2 Connecting the temperature transmitter to the PC using
the configuration set connection cable
1. Connect the SETUP connector of the interface connecting cable to the SETUP plug
on front of the temperature transmitter (→Fig. 3 in Section 4.2).
2. Connect the RS232C connector to a free serial interface socket on the PC. In order
to achieve optimum connection, tighten the RS232C connector screws to the PC.
3. If the PC does not have a RS232 serial interface, use a USB (UNIVERSAL SERIAL
BUS) converter. Full compliance with the USB specifications Version 1.0.11.1 and
USB CDC Version 1.1 are required to support the RS232 serial interface.
!Note!
Configuration of the temperature transmitter can be done either under power, e. g. using
a 9 Volt battery or in an installed condition during measurement operation.
System conditions – IBM PC or compatible computer (min. Pentium 166 MHz)
– Windows 95/98/ME/NT4.0/2000/XP
– 64 MB RAM
– Mouse
– CD-ROM drive
– Screen resolution 800 x 600 Pixel
– free serial interface
Recommended
minimum configuration
– Pentium 400 MHz
– 128 MB main RAM
– 120 MB free hard drive memory
– Screen resolution 1024 x 768 Pixel
Installation start Start Windows
®
:
1. Place installations-CD in the respective drive
2. Generally, the ’Autorun’-file starts. If not, run “Setup.exe ”and follow the
installation instructions
3. If required the help/operating manual can be printed out once the software
has been successfully installed.

Model 7600D Commissioning
Weed 11
6 Commissioning
6.1 Installation and function check
Installation check
Monitor all connections making sure they are tight. In order to guarantee fault-free
operation, the terminal screws must be screwed tightly onto the connection cables.
Function check
Measuring the analog 4 to 20 mA output signal or following failure signals:
6.2 Switch on the device
Once the power supply has been connected, the temperature transmitter is operational.
6.3 Configuration
6.3.1 Setting up using the PC configuration software
The operating and readout software is a universally applicable service and
configuration software. The operating software offers the user the following possibilities:
•Setup device functions
•Measured value visualization
•Device parameter data storage
•Measuring point documentation
The temperature transmitter left the factory with a default parameter configuration. If no
customer specific configuration was specified on the order then the default parameter
configuration is constructed as follows:
!Note!
If a change has been made to the measurement point, the temperature transmitter can
be re-configured. In order to re-configure the parameters, follow these instructions:
•Install the configuration software and make connection to the PC (see Section 5).
•For detailed operating instructions for the PC configuration software please read the
documentation (Readme.txt) contained in the PC operation and readout software
(see folder ’Doc’).
#Warning!
Explosions could result in death or serious injury. Configuration of the transmitter is not
permitted in a hazardous area!
Measurement range undercut linear fall to 3.8 mA
Measurement range excess linear rise to 20.5 mA
Sensor break; sensor short circuit
1
1) not for thermocouples
≤3.6 mA or ≥21.0 mA
Sensor Pt100 (RTD)
Connection mode 3-wire
Measuring range and
units
0 to 100 °C

Commissioning Model 7600D
12 Weed
6.3.2 Description of device functions
All parameters that can be read out and set up for the configuration of the temperature
transmitter are listed and described in the following table. Also the menu structure in the
PC configuration software is shown in the following table.
Configurable parameters (Default settings in bold)
Standard settings
Sensor type Sensor type
Pt100
Pt500
Pt1000
Ni100
Ni500
Ni1000
TC Typ B
TC Typ C
TC Typ D
TC Typ E
TC Typ J
TC Typ K
TC Typ L
TC Typ N
TC Typ R
TC Typ S
TC Typ T
TC Typ U
10 to 400 Ω
10 to 2000 Ω
-10 to 100 mV
Polynom RTD
Range start value
-328 °F (-200 °C)
-328 °F (-200 °C)
-328 °F (-200 °C)
-76 °F (-60 °C)
-76 °F (-60 °C)
-76 °F (-60 °C)
32 °F (0 °C)
32 °F (0 °C)
32 °F (0 °C)
-328 °F (-200 °C)
-328 °F (-200 °C)
-328 °F (-200 °C)
-328 °F (-200 °C)
-454 °F (-270 °C)
32 °F (0 °C)
32 °F (0 °C)
-328 °F (-200 °C)
-328 °F (-200 °C)
10 Ω
10 Ω
-10 mV
20 °F (°C)
Range end value
1562 °F (850 °C)
482 °F (250 °C)
482 °F (250 °C)
356 °F (180 °C)
302 °F (150 °C)
302 °F (150 °C)
3308 °F (1820 °C)
4208 °F (2320 °C)
4523 °F (2495 °C)
1679 °F (915 °C)
2192 °F (1200 °C)
2501 °F (1372 °C)
1652 °F (900 °C)
2372 °F (1300 °C)
3214 °F (1768 °C)
3214 °F (1768 °C)
752 °F (400 °C)
1112 °F (600 °C)
400 Ω
2000 Ω
100 mV
2000 °F (°C)
min. range
18 °F (10 °C)
18 °F (10 °C)
18 °F (10 °C)
18 °F (10 °C)
18 °F (10 °C)
18 °F (10 °C)
900 °F (500 °C)
900 °F (500 °C)
900 °F (500 °C)
90 °F (50 °C)
90 °F (50 °C)
90 °F (50 °C)
90 °F (50 °C)
90 °F (50 °C)
900 °F (500 °C)
90 °F (50 °C)
90 °F (50 °C)
90 °F (50 °C)
10 Ω
100 Ω
5 mV
18 °F (10 °C)
Connection mode Input of RTD connection mode.
Input:
• 2-wire
• 3-wire
• 4-wire
!Note!
Function is only active on selection of resistance thermometers (RTD).
Unit Input for unit
Input: °C, °F, K mV or Ω
Measurement
range start value
Input of 4 mA value.
Input: Limitation values see ’Sensor type’
0 °C
Measurement
range end value
Input of 20 mA value.
Input: Limitation values see ’Sensor type’
100 °C
Coefficient X0 to
X4
On sensor type polynom RTD, see description ’Customer specific linearization’

Model 7600D Commissioning
Weed 13
Customer-specific linearization
Customer-specific linearization and sensor matching are activated after the POLYNOM
RTD sensor type is selected. Please find detailed information about linearization in the
PC configuration software.
Expanded settings
Cold junction Selection of the internal (Pt100) or an external comparison measurement point.
Input:
• internal
• external
!Note!
Function is only active on selection of a thermocouple (TC), see ’Sensor type’
External
temperature
Input of the external comparison measurement point value.
Input: -40.00 to 185.00 °F / -40.00 to 85.00 °C (°C, °F, K)
0.00 °C
!Note!
Function is only active when "external" has been selected in the device function ’Cold junction’.
Cable resistance Input of cable resistance compensation on a 2-wire RTD connection.
Input: 0.00 to 20.00 Ω
!Note!
Function is only active when a 2-wire RTD connection has been selected, see ’Sensor type’.
Fault condition Input of the output signal on sensor rupture or short circuit.
Input:
• max (≥
≥≥
≥21.0 mA)
• min (≤3.6 mA)
Output Input of the standard (4 to 20 mA) or inverse (20 to 4 mA) current output signal.
Input:
• 4 to 20 mA
• 20 to 4 mA
Filter Selection of the digital filter 1. order (filter time constant).
Input: 0to 8 s
Offset Input of the zero point correction (offset).
Input: -10.00 to 10.00 °C (-18.00 to 18.00 °F)
0.00 °C
Measuring point
ident
Measuring point description
Input: 8 characters
Service functions
Output
simulation
Activate simulation mode.
Input:
• OFF
• ON
Input of the simulation value (current).
Input: 3.8 to 20.5 mA
Configurable parameters (Default settings in bold)

Maintenance Model 7600D
14 Weed
7 Maintenance
The DIN rail mount temperature transmitter has no moving parts and requires minimal
scheduled maintenance.
Sensor Checkout
To determine whether the sensor is at fault, replace it with another sensor or connect a
test sensor locally at the transmitter to test remote sensor wiring. Select any standard,
off-the-shelf sensor for use with a temperature transmitter, or consult the factory for a
replacement special sensor or transmitter combination.
8 Accessories
Configuration set for PC SETUP (SETUP program ’WeedComm’ and PC serial interface
cable (Order code: 4500/7600 Interface cable).
9 Trouble-shooting
9.1 Trouble-shooting instructions
If faults occur after commissioning or during measurement, always start any fault finding
sequence using the following checklists. The user is guided to the possible fault cause
and its removal by question and answer.
9.2 Application errors without messages
9.2.1 General application errors
Error Cause Action/cure
No communication
2-wire connection incorrect Re-connect correctly (see connection
diagram)
No power supply on the 2-wire
connection
Check the current loop
Power supply too low (< 12 V) Check power supply
Defective interface cable Check interface cable
Defective interface Check PC interface
Defective device Replace device

Model 7600D Trouble-shooting
Weed 15
9.2.2 Application errors for RTD connection
Pt100/Pt500/Pt1000/Ni100
Error Cause Action/cure
Fault current
(≤3.6 mA or ≥21 mA)
Defective sensor Check sensor
Incorrect connection of RTD Connect cables correctly to terminal
schematic
Incorrect connection of the 2-wire
cable
Connect cables correctly to terminal
schematic (polarity)
No power supply on the 2-wire
connection
Check current loop; the supply
should be > 12 V
Incorrect transmitter programming
(number of wires)
Change device function ’Connection
mode’ (see chap. ’Commissioning’)
Programming Thermocouple setup (see chap.
’Commissioning’). Change to RTD
Defective device Replace device
Error Cause Action/cure
Measured value incorrect/
inaccurate
Faulty sensor installation Install sensor correctly
Heat conducted by sensor Take note of sensor installation point
Transmitter setup faulty (number of
wires)
Change device function ’Connection
mode’
Transmitter setup faulty (scale) Change scale
Incorrect RTD setup Change device function ’Sensor type’
Sensor connection (2-wire) Check sensor connection
Sensor cable resistance (2-wire) not
compensated
Compensate cable resistance
Offset incorrectly set Check offset

Trouble-shooting Model 7600D
16 Weed
9.2.3 Application errors for TC connection
Error Cause Action/cure
Fault current
(≤3.6 mA or ≥21 mA)
Incorrect connection of sensor Connect cables correctly to terminal
schematic (polarity)
Defective sensor Check sensor
Setup Incorrect sensor type setup under
device function ’Sensor type’; setup
correct thermocouple
Incorrect 2-wire connection (current
loop)
Connect the cables correctly (see
connection diagram)
No power supply on the 2-wire
connection
Check current loop; the supply
should be > 12 V
Defective device Replace device
Error Cause Action/cure
Measured value incorrect/
inaccurate
Faulty sensor installation Install sensor correctly
Heat conducted by sensor Take note of sensor installation point
Transmitter setup faulty (scale) Change scale
Incorrect TC setup Change device function ’Sensor type’
Incorrect cold junction setup See chap. ’Commissioning’
Incorrect offset setup Check offset
Fault due to the thermo wire welded
to the well (interference voltages
incurred)
Please use a sensor in which the
thermo wire is not welded

Model 7600D Technical Data
Weed 17
10 Technical Data
10.0.1 Function and system design
Measuring principle Electronic monitoring and conversion of input signals in industrial temperature
measurement.
Measuring system The temperature transmitter is a two wire transmitter with an analog output. It has
measurement input for resistance temperature detectors (RTD) in 2-, 3- or 4-wire
connection, thermocouples and voltage transmitters. Setting up of the unit is done using
the configuration set for PC.
10.0.2 Input
Measured variable Temperature, resistance and voltage
Measuring range The transmitter monitors different measuring ranges depending on the sensor
connection and input signals.
Type of input
Input Designation Measuring range limits Min. span
Resistance temperature
detectors (RTD)
to IEC 751
(α= 0.00385)
to DIN 43760
(α= 0.006180)
Pt100
Pt500
Pt1000
Ni100
Ni500
Ni1000
-328 to 1562 °F (-200 to 850 °C)
-328 to 482 °F (-200 to 250 °C)
-328 to 482 °F (-200 to 250 °C)
-76 to 356 °F (-60 to 180 °C)
-76 to 302 °F (-60 to 150 °C)
-76 to 302 °F (-60 to 150 °C)
18 °F (10 °C)
18 °F (10 °C)
18 °F (10 °C)
18 °F (10 °C)
18 °F (10 °C)
18 °F (10 °C)
• Connection type: 2-, 3- or 4-wire connection
• Software compensation of cable resistance possible in the 2-wire system
(0 to 20 Ω)
• Sensor cable resistance max. 40 Ωper cable in the 3- and 4-wire system
• Sensor current: ≤0.6 mA
Resistance transmitter Resistance Ω10 to 400 Ω
10 to 2000 Ω
10 Ω
100 Ω

Technical Data Model 7600D
18 Weed
10.0.3 Output
Output signal Analog 4 to 20 mA, 20 to 4 mA
Breakdown information Breakdown information to NAMUR NE 43
Breakdown information is created when the measuring information is invalid or not
present anymore and gives a complete listing of all errors occuring in the measuring
system.
Source impedance
Transmission behavior Temperature linear, resistance linear, voltage linear
Thermocouples (TC)
to NIST Monograph 175,
IEC 584
to ASTM E988
to DIN 43710
Type B (PtRh30-PtRh6)
1
Type E (NiCr-CuNi)
Type J (Fe-CuNi)
Type K (NiCr-Ni)
Type N (NiCrSi-NiSi)
Type R (PtRh13-Pt)
Type S (PtRh10-Pt)
Type T (Cu-CuNi)
Type C (W5Re-W26Re)
Type D (W3Re-W25Re)
Type L (Fe-CuNi)
Type U (Cu-CuNi)
32 to 3308 °F (0 to +1820 °C)
-328 to 1679 °F (-200 to +915 °C)
-328 to 2192 °F (-200 to +1200 °C)
-328 to 2501 °F (-200 to +1372 °C)
-454 to 2372 °F (-270 to +1300 °C)
32 to 3214 °F (0 to +1768 °C)
32 to 3214 °F (0 to +1768 °C)
-328 to 752 °F (-200 to +400 °C)
32 to 4208 °F (0 to +2320 °C)
32 to 4523 °F (0 to +2495 °C)
-328 to 1652 °F (-200 to +900 °C)
-328 to 1112 °F (-200 to +600 °C)
900 °F (500 °C)
90 °F (50 °C)
90 °F (50 °C)
90 °F (50 °C)
90 °F (50 °C)
900 °F (500 °C)
900 °F (500 °C)
90 °F (50 °C)
900 °F (500 °C)
900 °F (500 °C)
90 °F (50 °C)
90 °F (50 °C)
• Internal cold junction (Pt100) or external, 32 to 176 °F (0 to 80 °C)
• Accuracy of cold junction: ± 1.8 °F (1 °C)
• Sensor current: 30 nA
Voltage transmitter (mV) Millivolt transmitter (mV) -10 to 100 mV 5 mV
1) High measuring error increase for temperature lower than 572 °F (300 °C)
Input Designation Measuring range limits Min. span
Signal (mA)
Under ranging Standard 3.8
Over ranging Standard 20.5
Sensor break; sensor short circuit
low
To NAMUR NE 4 3 ≤3.6
Sensor break; sensor short circuit
high
To NAMUR NE 4 3 ≥21.0
max. (V
Power supply
- 12V) / 0.022 A (current
output)
e.g. (24 V - 12V)/0.022 A = 545.5Ω

Model 7600D Technical Data
Weed 19
Filter 1st order digital filter: 0 to 8 s
Galvanic isolation U = 2 kV AC (input/output)
Min. current consumption ≤3.5 mA
Current limit ≤23 mA
Switch on delay 4 s (during power up I
a
= 3.8 mA)
Response time 1 s
10.0.4 Power supply
Electrical connection See ’Terminal layout’ in Chapter ’Wiring’.
Supply voltage U
b
= 12 to 35 V, polarity protected (for hazardous location see control drawing)
10.0.5 Performance characteristics
Reference operating
conditions
Calibration temperature: 73.4 °F ± 9 °F (+23 °C ± 5 °C)
Maximum measured error
Influence of supply voltage •≤±0.01%/V deviation from 24 V
Values refer to the full scale value.
Type Measurement accuracy
1
Resistance
temperature detectors
RTD
Pt100, Ni100
Pt500, Ni500
Pt1000, Ni1000
0.36 °F (0.2 °C) or 0.08%
0.9 °F (0.5 °C) or 0.20%
0.54 °F (0.3 °C) or 0.12%
Thermocouple TC
K, J, T, E, L, U
N, C, D
S, B, R
typ. 0.9 °F (0.5 °C) or 0.08%
typ. 1.8 °F (1.0 °C) or 0.08%
typ. 3.6 °F (2.0 °C) or 0.08%
Measurement range Measurement accuracy
1
1) % is related to the adjusted measurement range. The value to be applied is the greater.
Resistance transmitter
(Ω
ΩΩ
Ω)
10 to 400 Ω
10 to 2000 Ω
± 0.1 Ωor 0.08%
± 1.5 Ωor 0.12%
Voltage transmitters
(mV)
-10 to 100 mV ± 20 µV or 0.08%

Technical Data Model 7600D
20 Weed
Influence of ambient
temperature (Temperature
drift)
•Resistance thermometer (RTD):
T
d
= ±(8.3 ppm/°F * calibrated span+ 27.8 ppm/°F * span) * ∆ϑ
•Resistance thermometer Pt100:
T
d
= ±(8.3 ppm/°F * (full scale point or 20 mA temperature + 328) + 27.8 ppm/°F *
span) * ∆ϑ
•Thermocouple (TC):
T
d
= ±(27.8 ppm/°F * calibrated span + 27.8 ppm/°F * span) * ∆ϑ
Influence of load •± 0.02%/100 Ω
Values refer to the full scale value
Long-term stability •≤0.18 °F/year (0.1 °C/year) or ≤0.05%/year
Values under reference operating conditions. % refer to the set span. The highest
value is valid.
Influence of cold junction Pt100 IEC 751 Cl. B (internal cold junction for thermocouples TC)
10.0.6 Installation conditions
Installation conditions •Installation angle:
no limit
•Installation on DIN rail, e.g. in control panel
10.0.7 Environmental conditions
Ambient temperature limits -40 to 185 °F (-40 to +85 °C) for Ex-area, see Ex-certification or control drawing
Storage temperature -40 to 212 °F (-40 to +100 °C)
Climate class as per IEC 60654-1, class C
Condensation allowed
Degree of protection NEMA 1 (IP 20)
Shock and vibration
resistance
4g / 2 to 150 Hz as per IEC 60 068-2-6
∆ϑ
Deviation of the ambient temperature according to the reference condition
(73.4 °F ± 9 °F).
Calibrated span 100 °F if unit calibrated from 50 °F to 150 °F.
Span Pt100 would be 1890 °F.
Full scale point or 20 mA
temperature
150 °F if unit calibrated from 50 °F to 150 °F.