TESTO 6351 User manual

testo 6351 · differential pressure transmitter
P2A software · Parameterizing, adjusting and analyzing
software
Instruction manual

2

1 Safety and the environment
3
1 Safety and the environment
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.
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.
> Do not store the product together with solvents. Do not use any
desiccants.
> Do not use the instrument for control purposes at the same time
as operating or servicing the transmitter.
> Only operate the product properly, for its intended purpose and
within the parameters specified in the technical data. Do not
use any force.
> 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.
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.
Protecting the environment
> 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.

2 About this document
4
2 About this document
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.
WARNING Indicates potential serious injuries
CAUTION indicates potential minor injuries
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

3 Contents
5
3 Contents
1 Safety and the environment ..................................................... 3
2 About this document ................................................................ 4
3 Contents .................................................................................. 5
4 Transmitter .............................................................................. 8
4.1. Specifications ........................................................................ 8
4.1.1. Functions and use ........................................................................................................ 8
4.1.2. Scope of delivery ......................................................................................................... 8
4.1.3. Accessories .................................................................................................................. 8
4.1.4. Technical data.............................................................................................................. 9
4.1.5. Dimensions ................................................................................................................ 12
4.2. Product description ............................................................. 13
4.2.1. At a glance ................................................................................................................. 13
4.2.2. Display and keypad .................................................................................................... 15
4.2.3. Service interface ........................................................................................................ 15
4.2.4. Relay board (option) .................................................................................................. 15
4.2.5. Analog outputs .......................................................................................................... 15
4.2.6. Parameters ................................................................................................................ 16
4.2.7. Scaling ....................................................................................................................... 16
4.2.8. Alarm handling .......................................................................................................... 18
4.3. Commissioning .................................................................... 18
4.3.1. Assembling the instrument ........................................................................................ 18
4.3.1.1. Wall mounting ........................................................................................... 18
4.3.2. Connecting the instrument ........................................................................................ 19
4.3.2.1. Overview of terminals ................................................................................ 21
4.3.2.2. Connecting voltage supply and analog outputs .......................................... 22
4.3.2.3. Connecting the relay outputs ..................................................................... 23
4.3.2.4. Plug-in connection option .......................................................................... 26
4.3.2.5. Closing the instrument ............................................................................... 27
4.3.3. Adjusting the instrument ........................................................................................... 28
4.3.3.1. Analog output adjustment ......................................................................... 28
4.3.3.2. n-point adjustment .................................................................................... 29
4.4. Operation ............................................................................ 30
4.4.1. Relationship between user menu and mini-DIN socket is active ................................ 30
4.4.2. Key cover ................................................................................................................... 31
4.4.3. Password protection .................................................................................................. 31
4.4.4. Structure of user menu .............................................................................................. 32

3 Contents
6
4.4.5. Overview of the testo 6351 user menu ...................................................................... 33
4.4.6. The individual main menus ........................................................................................ 36
4.4.6.1. Editing main menu of channel 1 ................................................................. 36
4.4.6.2. Editing Main Menu Alarm .......................................................................... 36
4.4.6.3. Editing Main Menu Settings ....................................................................... 39
4.4.6.4. Editing Main Menu Analysis ....................................................................... 41
4.4.6.5. Editing Message main menu ...................................................................... 43
4.4.6.6. Calling up Main Menu Ident ....................................................................... 44
4.4.6.7. Editing Main Menu Adjust .......................................................................... 44
4.4.6.8. Editing Reset main menu ........................................................................... 46
4.5. Status, warning and error messages ................................... 46
4.5.1. Status messages ......................................................................................................... 47
4.5.2. Warning messages ..................................................................................................... 48
4.5.3. Transmitter error messages ....................................................................................... 49
4.5.4. Handling alarm messages .......................................................................................... 49
4.5.5. Namur fault conditions .............................................................................................. 50
4.6. Maintenance and cleaning .................................................. 51
4.6.1. Maintaining the instrument ....................................................................................... 51
4.6.2. Cleaning the instrument ............................................................................................ 51
5 Parameterizing, adjusting and analyzing software (P2A
software) .............................................................................. 52
5.1. Specifications ...................................................................... 52
5.1.1. Functions and use ...................................................................................................... 52
5.1.2. System requirements ................................................................................................. 53
5.1.3. Scope of delivery........................................................................................................ 53
5.2. First steps ............................................................................ 54
5.2.1. Installing the software/driver .................................................................................... 54
5.2.1.1. Installing P2A software............................................................................... 54
5.2.1.2. Installing USB driver ................................................................................... 54
5.2.1.3. P2A software upgrade ................................................................................ 54
5.2.2. Starting the software ................................................................................................. 54
5.2.2.1. Starting the program .................................................................................. 54
5.2.2.2. Establishing a connection with the instrument .......................................... 55
5.2.2.3. Activating the connection with the instrument .......................................... 55
5.3. Using the software .............................................................. 56
5.3.1. User interface ............................................................................................................ 56
5.3.2. Editing instrument/parameter file ............................................................................. 58
5.3.2.1. Changing instrument/parameter file .......................................................... 58
5.3.2.2. Saving parameters ..................................................................................... 66
5.3.2.3. Opening the parameter file ........................................................................ 67

3 Contents
7
5.3.2.4. Copying and pasting parameters................................................................ 67
5.3.2.5. Deleting instrument/parameter file ........................................................... 67
5.3.2.6. Creating a new instrument file ................................................................... 68
5.3.3. Analyzing/testing the transmitter .............................................................................. 68
5.3.3.1. Analyzing/testing the instrument ............................................................... 68
5.3.3.2. Carrying out factory reset .......................................................................... 68
5.3.3.3. Testing analog output ................................................................................ 69
5.3.3.4. Testing switch output relays 1 to 4 ............................................................ 71
5.3.3.5. Displaying min./max. values....................................................................... 72
5.3.4. Adjusting the transmitter .......................................................................................... 73
5.3.4.1. n-point adjustment .................................................................................... 73
5.3.4.2. Adjusting the analog output ...................................................................... 74
5.3.5. Transmitter history .................................................................................................... 75
6 Tips and assistance ................................................................. 80
6.1. Questions and answers ....................................................... 80
6.2. Accessories and spare parts ................................................ 80
6.2.1. Ordering options for testo 6351 transmitter (0555 6351).......................................... 81

4 Transmitter
8
4 Transmitter
4.1. Specifications
4.1.1. Functions and use
The testo 6351 transmitter is suitable for the following applications,
amongst others:
• Test benches
• Clean rooms
• Filling processes
• Complex room climate applications
• Monitoring flow velocities or volumetric flow rates in air
conditioning systems
4.1.2. Scope of delivery
The scope of delivery of the testo 6351 transmitter includes the
following:
• Key cover
• Rear panel bracket
• Instruction manual
• Calibration report
4.1.3. Accessories
The following accessories are available for the testo 6351
transmitter, amongst others:
• Mains unit
• P2A software (parameterizing, adjusting and analyzing
software)
• Assembly accessories
Information about accessories and their order numbers can
be found in 6.2. Accessories and spare parts or on the
website at www.testo.com.

4 Transmitter
9
4.1.4. Technical data
Parameter
• Differential pressure
Accuracy
The specifications are only valid if the positive pressure is
applied at the positive pressure connection.
• ±0.8 % of measuring range final value, additional ±0.3 Pa
intrinsic error1
• TK slope drift = 0.03 % of measuring range per degree Kelvin of
deviation from nominal temperature 22 °C
• TK zeroing drift= 0 %, as zeroing with solenoid valve2
Measuring range, resolution and overload
Measuring range
depending on
resolution ordered
Resolution Overload
0 to 50 Pa 0.1 Pa 20,000 Pa
0 to 100 Pa 0.1 Pa 20,000 Pa
0 to 500 Pa 0.1 Pa 20,000 Pa
0 to 10 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
1 Measuring uncertainty in accordance with GUM: ±0.8 % of measuring range final value ±0.3 Pa.
The determination of measurement uncertainty takes place according to GUM (Guide to the Expression of
Uncertainty in Measurement): For the determination of measurement uncertainty, the accuracy of the
measuring instrument (hysteresis, linearity, reproduceability), the uncertainty contribution of the test site as
well as the uncertainty of the adjustment site (works calibration are taken into account. For this purpose, the
value of k=2 of the extension factor, which is usual in measurement technology is used as a basis, which
corresponds to a trust level of 95%.
2 Minor mixtures of the media may occur at the positive and negative pressure side due to the automatic
zeroing cycle.

4 Transmitter
10
Measuring range
depending on
resolution ordered
Resolution Overload
-50 to 50 Pa 0.1 Pa 20,000 Pa
-100 to 100 Pa 0.1 Pa 20,000 Pa
-500 to 500 Pa 0.1 Pa 20,000 Pa
-10 to 10 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 6.2.1. Ordering options for testo
6351 transmitter (0555 6351).
Meas. cycle
• 1/sec
Interface
• Mini-DIN for P2A software (adjustment and parameterization
software)
• optional: Ethernet module
Voltage supply
• 4-wire (separate signal and supply lines): 20 to 30 V AC/DC,
300 mA power consumption
Maximum load
• 4-wire: 500 Ω (power output)