TESTO 6321 User manual

testo 6321 · differential pressure transmitter
P2A software · Parameterizing, adjusting
and analyzing software
Instruction manual

2

1 Safety and the environment
3
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1 Safety and the environment
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Avoiding electrical hazards
> Never use the instrument and connected probes to measure on
or near live parts!
> Damaged mains cables must only be replaced by authorized
personnel.
> Only have the transmitter wired and connected by authorized
personnel with the voltage disconnected.
> You must always comply with the regulations applicable in your
country for opening and repairing electrical equipment.
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Avoiding personal injury and damage to equipment
> Installation, setting and calibration work must only be carried
out by qualified and authorized personnel!
> Only open the instrument when this is expressly described in
the instruction manual for installation, maintenance or repair
purposes.
> Observe the permissible storage, transport and operating
temperature.
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> Do not store the product together with solvents. Do not use any
desiccants.
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> Do not use the instrument for control purposes at the same time
as operating or servicing the transmitter.
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> Only operate the product properly, for its intended purpose and
within the parameters specified in the technical data. Do not
use any force.
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> Carry out only the maintenance and repair work on this
instrument that is described in the documentation. Follow the
prescribed steps exactly. Use only original spare parts from
Testo.
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Any additional work must only be carried out by authorized
personnel. Otherwise testo will not accept any responsibility for the
proper functioning of the instrument after repair and for the validity
of certifications.

2 About this document
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Protecting the environment
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> At the end of its useful life, send the product to the separate
collection for electric and electronic devices (observe local
regulations) or return the product to Testo for disposal.
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2 About this document
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Use
> Please read this documentation through carefully and
familiarize yourself with the product before putting it to use. Pay
particular attention to the safety instructions and warning advice
in order to prevent injuries and damage to the products.
> Keep this document to hand so that you can refer to it when
necessary.
> Hand this documentation on to any subsequent users of the
product.
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WARNING Indicates potential serious injuries
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CAUTION indicates potential minor injuries
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Symbols and writing standards
Representa-
tion
Explanation
Note: Basic or further information.
1. ...
2. ...
Action: more steps, the sequence must be
followed.
> ... Action: a step or an optional step.
- ... Result of an action.
Menu
Elements of the program interface.
[OK]
Buttons of the program interface.
... | ... Functions/paths within a menu.
“...” Example entries
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3 Contents
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3 Contents
1Safety and the environment ........................................................ 3
2About this document.................................................................... 4
3Contents ........................................................................................ 5
4Transmitter.................................................................................... 7
4.1. Specifications ..................................................................................7
4.1.1. Functions and use............................................................................7
4.1.2. Scope of delivery .............................................................................7
4.1.3. Dimensions......................................................................................7
4.1.4. Technical data .................................................................................8
4.2. Product description........................................................................11
4.2.1. At a glance.....................................................................................11
4.2.2. Scaling...........................................................................................12
4.3. Commissioning..............................................................................13
4.3.1. Assembling the instrument.............................................................13
4.3.1.1. Wall mounting....................................................................13
4.3.2. Wiring the instrument .....................................................................14
4.3.2.1. 4-wire system ....................................................................16
4.3.2.2. 3-wire system ....................................................................16
4.4. Maintenance and cleaning.............................................................17
4.4.1. Cleaning housing ...........................................................................17
4.4.2. Namur fault conditions ...................................................................17
5Parameterizing, adjusting and analyzing software (P2A
software)...................................................................................... 18
5.1. Specifications ................................................................................18
5.1.1. Functions and use..........................................................................18
5.1.2. System requirements .....................................................................19

3 Contents
6
5.2. First steps ..................................................................................... 20
5.2.1. Installing the software/driver ..........................................................20
5.2.1.1. Installing P2A software......................................................20
5.2.1.2. Installing USB driver..........................................................20
5.2.1.3. P2A software upgrade....................................................... 20
5.2.2. Starting the software......................................................................21
5.2.2.1. Starting the program.......................................................... 21
5.2.2.2. Establishing a connection with the instrument ...................21
5.2.2.3. Activating the connection with the instrument ....................21
5.3. Using the software ........................................................................ 22
5.3.1. User interface ................................................................................22
5.3.2. Editing instrument/parameter file....................................................24
5.3.2.1. Changing instrument/parameter file................................... 24
5.3.2.2. Creating a new instrument file ...........................................26
5.3.2.3. Saving parameters ............................................................26
5.3.2.4. Opening the parameter file ................................................ 27
5.3.2.5. Copying and pasting parameters....................................... 27
5.3.2.6. Deleting instrument/parameter file .....................................27
5.3.3. Analyzing/testing the transmitter ....................................................28
5.3.3.1. Analyzing/testing the instrument ........................................ 28
5.3.3.2. Carrying out factory reset ..................................................28
5.3.3.3. Testing analog output........................................................29
5.3.3.4. Displaying min./max. values ..............................................30
5.3.4. Adjusting the transmitter ................................................................32
5.3.4.1. n-point adjustment............................................................. 32
5.3.4.2. Adjusting the analog output ............................................... 33
5.3.5. Transmitter history .........................................................................35
6Tips and assistance ................................................................... 37
6.1. Questions and answers ................................................................ 37
6.2. Accessories and spare parts......................................................... 37
6.2.1. Ordering options for testo 6321 transmitter (0555 6321) ................ 38
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4 Transmitter
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4 Transmitter
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4.1. Specifications
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4.1.1. Functions and use
The testo 6321 transmitter is suitable for the following applications,
amongst others:
• Air conditioning and ventilation technology
◦Monitoring ventilation and filtration systems
◦Monitoring fans
◦Monitoring exhaust air volumetric flow rates
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4.1.2. Scope of delivery
The scope of delivery of the testo 6321 transmitter includes the
following:
• Assembly accessories
• Operating instructions
• Calibration report
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4.1.3. Dimensions
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4 Transmitter
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4.1.4. Technical data
Parameter
• Differential pressure
Accuracy1
The specifications are only valid if the positive pressure is
applied at the positive pressure connection.
• 1.2 % of measuring range, additional ±0.3 Pa intrinsic error 2
• TK slope drift = 0.05 % of measuring range per degree Kelvin of
deviation from nominal temperature 22 °C
• TK zeroing drift= 0 % (by means of automatic zeroing)
Measuring range, resolution and overload
Measuring range
depending on
version ordered
Resolution Overload
0 to 100 Pa 0.1 Pa 20,000 Pa
0 to 10 hPa 0.01 hPa 200 hPa
0 to 20 hPa 0.01 hPa 200 hPa
0 to 50 hPa 0.01 hPa 750 hPa
0 to 100 hPa 0.1 hPa 750 hPa
0 to 500 hPa 0.1 hPa 2500 hPa
0 to 1000 hPa 1 hPa 2500 hPa
0 to 2000 hPa 1 hPa 2500 hPa
1At 25 °C. A stabilization period of approx. 30 min must be taken into account upon commissioning the instrument.
2Measuring uncertainty in accordance with GUM: ±1.2 % of measuring range final value ±0.3 Pa.
GUM (Guide to the Expression of Uncertainty in Measurement): ISO guideline for determining the
measuring uncertainty in order to render global measurement results comparable.
The following uncertainties are used during the inquiry:
• Hysteresis
• Linearity
• Reproducibility
• Long-term stability
• Adjustment area/factory calibration
• Test location

4 Transmitter
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Measuring range
depending on
version ordered
Resolution Overload
-100 to 100 Pa 0.1 Pa 20,000 Pa
-10 to 10 hPa 0.01 hPa 200 hPa
-20 to 20 hPa 0.01 hPa 200 hPa
-50 to 50 hPa 0.01 hPa 750 hPa
-100 to 100 hPa 0.1 hPa 750 hPa
-500 to 500 hPa
0.1 hPa
2500 hPa
-1000 to 1000 hPa 1 hPa 2500 hPa
-2000 to 2000 hPa 1 hPa 2500 hPa
Upon delivery and following a factory reset the readings are
shown in the display in the unit that was ordered via the
KMAT option Fxx, see Ordering options for testo 6321
transmitter (0555 6321) page 38.
Meas. cycle
• 1/sec
Zeroing cycle
• Set to 1 min at the factory
Interface
• Mini-DIN for P2A software (adjustment and parameterization
software)
Voltage supply
• 3 or 4-wire (separate signal and supply lines): 20 to 30 V
AC/DC, 300 mA power consumption

4 Transmitter
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Maximum load
• 4-wire: 500 Ω(power output)
Maximal load
• 10 kΩ(voltage output)
Analog output
• 0 to 1 V ± 2.5 mV (4-wire) or
• 0 to 5 V ± 12.5 mV (4-wire) or
• 0 to 10 V ± 25 mV (4-wire) or
• 4 to 20 mA ± 0.05 mA (4-wire)
• TK= 0.05 %K of measuring range per degree Kelvin of
deviation from nominal temperature 22 °C
Resolution of analog output
• 12 bit
Display
• 2-line LCD (optional)
Operating temperature
• -5 to 50 °C