testo 6721 Dew point monitor software Instruction Manual

6721 Dew point monitor software
Instruction Manual

Safety and the environment

About this document

• Please read this document carefully and familiarize yourself with the product before putting it to use. Keep this documentation to hand so that you can refer to it when necessary. Hand this documentation on to any subsequent users of the product.
• Pay particular attention to information emphasized by the following symbols:
  Important.

Specifications

Functions and use
The 6721 is a dew point monitor for monitoring trace humidity in the following applications:

• Trace humidity monitoring in compressed air systems, e.g. upstream of pneumatic machines.
• Monitoring (compressed air) low-temperature driers.
• Monitoring (compressed air) membrane driers.

The product must only be assembled, wired, and connected by qualified personnel.
The product must not be used in areas at risk of explosion!

Ordering overview

0555 6721 Axx/Fxx/Kxx

A01
A02| G½“ process connection
NPT ½“ process connection
---|---
B01
B02| Measuring range -30 to +30°Ctd
Measuring range -45 to +30°Ctd
F01
F02| Dew point °Ctd / GW 1 / GW 2 / hysteresis
Dew point °Ftd / GW 1 / GW 2 / hysteresis

Technical details

Parameters, measuring range

• Dew point temperature (trace humidity):
  -30 to 30 °Ctd/-22 to 86 °Ftd (B01) | -45 to +30°Ctd/
  -49 to +86°Ftd (B02)

Accuracy

• Dew point temperature at 25 °C/77 °F process temperature:
  ±4 K (-30…-20 °Ctd / -22…-4 °Ftd),
  ±3 K (-20…-10 °Ctd / -4…14 °Ftd),
  ±2 K (-10…0 °Ctd / 14…32 °Ftd),
  ±1 K (>0 °Ctd / >32 °Ftd)

Resolution

• 0.1 °Ctd/0.1 °Ftd

Meas. cycle

• 1/s

Other instrument data

• Humidity sensor: Testo humidity sensor (with special trace humidity adjustment)
• Temperature sensor: NTC
• Output variable: Dew point (°Ctd or °Ftd) via two switching outputs
• Measuring medium: Compressed air (filtered and dried, ISO 8573 classes 2-4-2)
• Operating temperature: 0 – 50 °C/32 -122 °F, ideally between 10 °C and 35 °C/50 °F
• Pressure range: max. 50 bar (abs)
• Connection: G½“ (0555 6721-A01) or NPT½“ (0555 6721-A02)
• Supply: 24 V AC/V DC (20 – 30 V AC/V DC permissible)
• Power consumption: 50 mA
• Interfaces: mini-DIN interface for parameterizing/adjusting/analyzing using testo P2A Software
• Switching outputs: 2 x floating, switching voltage 24 V DC/V AC, switching current 0.5 A, optional wiring as NC or NO contact
• Limit values (2x) and switching hysteresis (1x): Free choice within the measuring range by means of order code, or setting via testo P2A Software
• Sensor protection: Sintered stainless steel filter, 12 mm diameter
• Housing material: plastic PAA GF30
• Housing dimensions: 167 x 33 x 33 mm
• Protection class: IP65 (with adapter connected or with a protective tab on the closed interface.)
• Ambient temperature: 0 to 50 °C/32 to 122 °F
• Storage temperature: -40 to 70 °C/-40 to158 °F
• Weight: 240 g

Directives, standards, and tests

• EC Directive: 2014/30/EC

Dimensions:

1. 0555 6721-A01: G½ 0555 6721-A02: NPT½“
2. Installation depth in the process
3. Wrench size

Product description

At a glance

1. Sensor protection: Sintered stainless steel cap.
2.  Fixing the sensor assembly: Threaded pin.
3. Screwed socket: G ½ (0555 6721-A01) or NPT ½“ (0555 6721-A02).
4. Fixing the housing cover: 2 countersunk screws.
5. Connector socket for switching contact connector.
6. Connector socket for external interface (mini-DIN Testo), plug.

Factory settings

Commissioning

Assembling the instrument
Assembling the instrument at the process connection:
If assembling without a measurement chamber: The sections of pipe where the instrument is assembled are depressurized.

1. To ensure leak tightness: Wrap the thread of the screwed socket using sealing tape (e. g. PTFE) or insert a copper sealing ring (internal diameter of 21 mm).
2. Assemble the instrument according to the application in hand:

Applications/assembly options
A Process temperatures < 15 °C or > 35 °C (max. 200 °C):
Assembly with measurement chamber and cooling coil.
B Process temperatures of 15 – 35 °C, quick assembly/dismantling of the instrument is required, sufficient incident flow through the sensor (1l/min) not present:
Assembly with measurement chamber.
If media are contaminated: use a suitable pre-filter.
C Process temperatures of 15 – 35 °C, installation of the sensor directly in the process is possible, quick assembly/dismantling of the instrument is not required, sufficient incident flow  through sensor (1l/min) present, compressed air is not contaminated:
Assembly without measurement chamber and without cooling coil

1. Process connection, quick-release compressed-air fastener NW 7.2 or G 1/2“ or NPT 1/2“ thread

2. Cooling coil

3. Preliminary filter
   When using the preliminary filter, it must be ensured that there is sufficient flow (1 l/min) in the measurement chamber by cleaning the filter regularly.

4. Measurement chamber (0554 3303).

5. testo 6721 dew point monitor.

6. Assembling the measurement chamber on the dew point monitor.
   Only apply force at the hexagon (AF 27)!

Wiring the instrument
The testo 6721 is supplied with the right connector to which a cable can be soldered by the customer. Alternatively, the 5 m accessories cable with the pre-fabricated connector  (0554 6720) can be used.
Fabrication of connection cable by the customer:
Testo recommends an 8-wire line with a tightly plaited shield and a wire crosssection of 0.25 – 0.5 mm².

1. Remove the top part of connector 2 from the bottom part of connector 1 (screw cap).

2. Open line fixture on the top part of connector (screw cap/union nut 3 ) and feed through lines of the connecting cable.

3. Solder ends of lines to the pins in the bottom part of the connector Í:
   Two separate switching points can be created using the two switching contacts which can each be configured as either a NC contact (1-3, 9-5) or NO contact (1-2, 9-6) Assignment of the pins
   1 Root/pin for switching contact 1
   2 NO contact for switching contact 1
   3 NC contact for switching contact 1
   4 Supply 5
   5 NC contact for switching contact
   6 NO contact for switching contact
   7 Functional earth
   8 Supply +
   9 Root/pin for switching contact

4. Fasten the top part of the connector to the bottom part of the connector (screw cap) and close the line fixture (screw cap/union nut).

Feeding wiring through with accessories cable 0554 6720:
Shorten the length of the line (5 m) if necessary.
Connect the ends of the line according to the color assignment:
Two separate switching points can be created using the two switching contacts which can each be configured as either an NC contact (grey-pink, brown-green) or NO contact  (grey-yellow, brown-white).

Connecting the instrument

• Connecting the switching contact connector to the instrument:
  Fasten switching contact connector to the port of the instrument (connector with rotary protection).

Parameterizing/adjusting/analyzing the instrument
The instrument is parameterized, adjusted, and analyzed using the P2A
Software, see “Part 2: testo P2A Software”.

Maintaining the product

• Cleaning the housing:
  Clean the housing with a damp cloth (soap suds) if it is dirty. Do not use aggressive cleaning agents or solvents!

• Cleaning the sensor protection cap, measurement chamber, cooling coil and preliminary filter:
  If used in process conditions involving oil or dust, the sintered stainless steel filter and, if used, the measurement chamber, preliminary filter, and cooling coil must be cleaned regularly.
  Remove the measurement chamber and cooling coil/unscrew the sensor protection cap/unscrew the preliminary filter and blow out with compressed air or place in an ultrasonic bath.

Cleaning the sensor:
During cleaning, avoid touching the sensor at all costs.
Do not clean the sensor mechanically, as this can damage the cover electrode.
Screw off the filter cover.
Carefully rinse the mirrored surface with isopropyl alcohol and/or distilled water.
Allow the sensor to dry completely.

Tips and assistance

Questions and answers

– View adjustment history using P2A Software: Faulty adjustment?

If we could not answer your question, please contact your dealer or Testo Customer Service. For contact details see the rear side of this document or the web page  www.testo.com/service-contact

Accessories and spare parts

Parameterizing, adjusting and analyzing software (P2A Software incl. adapter cable for USB to mini-DIN)| 0554 6020
Measurement chamber for optimum incident flow through humidity sensor, max. 15 bar, for G½“ thread| 0554 3303
Sintered stainless steel filter| 0554 0647
Connector with 5 m cable| 0554 6720
Mains unit (bench unit), 90 – 264 V AC/24 V DC (350mA)| 0554 1748
Mains unit (top-hat rail mounting), 90 – 264 V AC/24 V DC (2.5A)| 0554 1749

For a complete list of all accessories and spare parts, please refer to the product catalogs and brochures or look up our website at: www.testo.com

Specifications

Functions and use
The P2A software is used for the parameterizing, adjustment, and analysis of testo transmitters. The following applies:

• If a Testo transmitter is bought at a later stage (and is, therefore, more recent than the existing P2A software version), a software update is required.
• You can find the free upgrade on the Testo website www.testo.com under the product-specific downloads.
• The software therefore only needs to be bought once, even for owners of several Testo transmitters.

Systemvoraussetzungen
Betriebssystem

• Windows® 7
• Windows®8
• Windows®10

Rechner
The computer must fulfill the requirements of the respective operating system. The following requirements must additionally be fulfilled:

• Graphic resolution min. 1024 x 768
• Interface USB 1.1 or higher

Date and time settings are automatically taken over from the computer. The administrator must ensure that the system time is regularly synchronized with a reliable time source,  in order to guarantee the authenticity of the data.

First steps

Installing the software/driver

Administrator rights are required for installation.
Installing the P2A Software:
Without the input of a license key, the software will run only as a demo version (a time limit of 30 days).

1. You can download the software under the following link: https://www.testo.com/download-center
   If the installation program does not start automatically: > Open the download folder and start P2A.exe.

2. Follow the instructions of the installation wizard.

3. Click on [Finish] to complete the software installation.

Installing the USB drivers:

1. You can download the USB driver under the following link: https://www.testo.com/download-center (Testo USB driver)
   If the installation program does not start automatically: > Open the download folder and start USBDriver.exe

2. Follow the instructions of the installation wizard.

3. Click on [Finish] to complete the software installation.

P2A software update:

1. You can find the P2A software upgrade on the Testo website www.testo.com under the product-specific downloads. Download and save the P2A software upgrade.
2. Start P2A upgrade.exe file.
3. Follow the instructions of the installation wizard.

Starting the software

Starting the program:
Windows program menu
Windows® 7

• Click on [Start] > All Programs > Testo > P2A Software (double-click on left mouse button).
  Windows® 8

• Click on [Start] | right mouse button | Search | Enter the name of the application in the search field | P2A Software. (double-click on the left mouse button).
  Windows® 10

• Click on [Start] | All Apps | Testo | P2A Software. (double-click on the left mouse button).

Product description

User interface

1. Menu bar.

2. Toolbar.

3. File list: List of all instrument/parameter files.
   File symbols
   : Instrument file, connection to the unit has not been established.
   : Instrument file, connection to the unit has been established.
   : Parameter file.
   File identifications
   • Instrument files: “[Type] [serial number].cfm”; file identifications cannot be changed.
   Instrument files contain all the data relating to a particular instrument. These are the parameter data and represent the parameterization and adjustment history of the instrument.
   • Parameter files: “[Type] [serial number] [date] [time].cfp”; file identifications can be changed.
   Parameter files only contain parameter data. These can be copied to another instrument or parameter file for the same type of instrument so that several instruments have the same parameter settings.

4. List of functions.

5. File information:

Information displayed

• Instrument files: Type, serial number, firmware version, and connection status of the instrument.
• Parameter file: Type, serial number, and firmware version of the instrument with which the parameter file was created.
• Connection status (instrument files only): “red” connection is active, “green” connection is inactive.

Using the product

Establishing a connection with the device:
Several instruments can be connected to the PC and administered via the P2A software, but only one connection can ever be active at any one time.
Non-wired instruments can also be connected to the P2A Software for parameterization/adjustment. The supply to the instruments is then effected via the USB interface.

1. Connect the USB/mini-DIN adapter to the external interface (mini-DIN) of the instrument.
2. Connect the USB connector of the adapter to the PC.
   – The instrument file for the instrument connected appears in the instrument file/parameter file list.

Selecting the instrument/parameter file, activating a connection with the device:
Click on the requisite instrument/parameter file.

• The selected file is highlighted in color.
• For instrument files only: if a connection with the instrument has been established, this is automatically activated.

Changing an instrument/parameter file:
The required instrument/parameter file is selected.

1. Click on the Change parameterization button.
2. Enter parameters in the corresponding fields.
3. Click on Apply to confirm entries.
4. To leave the parameterization screen, click on OK.

⇨ Saving the parameters in a parameter file:
The parameter data for the selected instrument/parameter file can be saved.
Only parameter data stored in the standard file can be loaded into an instrument!
✔ The required instrument/parameter file is selected.

1. In the menu bar, click on File > Save as.
2. Select the storage location and enter the file name.
3. Click on Save to confirm entries.

⇨ Opening a parameter file:
All parameter files stored in the standard directory path are automatically displayed in the file list when the software is started. Parameter files stored in other directories can also be opened.
Only parameter data stored in the standard file can be loaded into an instrument!

1. In the menu bar, click on File > Open.
2. Select the storage location and click on the requisite parameter file.
3. Click on Open to confirm entries.

⇨ Copying the parameter data:
The parameter data for an instrument/parameter file can be transferred to another instrument/parameter file for the same type of instrument. History data for instrument files are not transferred.

1. Select file from which the parameter data are to be copied.
2. In the menu bar, click on Edit > Copy.
3. Select the file which is to be modified.
4. In the menu bar, click on Edit > Paste.

⇨ Analyzing/testing the instrument:
✔ The required instrument file is selected.

1. Click on Test / analyze transmitter button.

2. Perform tasks:
   Options
   · Carry out a factory reset: Reset the parameter unit, scaling limits, and adjustment to the factory settings (values device-specific, see type label).
   · Transmitter tests: Manually switch switching outputs to test functionality.
   · Min./max. values: Change to display minimum/maximum values.

3. Click on Apply to confirm entries.

4. To leave the analyzing/test screen, click on OK.

⇨ Carrying out a 1-point adjustment:
A 1-point adjustment (offset) can be performed. A dew point mirror is recommended as a reference measuring instrument for dew point temperatures < 0 °Ctd.

1. Click on Adjust transmitter button.

2. Expose the reference measuring instrument and the instrument to be adjusted to the same constant conditions and wait for the equalization period to lapse.

3. Enter reference value and perform adjustment by clicking on carrying out 1-point adjustment.
   To reset an offset value, click on Set Offset to zero.

4. Click on Apply to confirm entries.

Viewing a transmitter history:
The current history data as stored in the instrument file are always displayed.
A distinction is made between parameterization and adjustment histories.
Dates and times refer to the PC time when the P2A Software was being used.
History data are only stored in the instrument file (PC), not in test 6721.

• Click on the Transmitter history button.
• To move between the views, click on Parameterization history or Adjustment history.
  To print the history data, click on Print.

✔ The required instrument/parameter file is selected.

1. Right-click on the instrument/parameter file.
2. Select Delete.
3. Click on Yes to confirm.

⇨ Creating a new folder:
✔ The folder to which the new folder is to be added is selected.

1. In the menu bar, click on File > Add Folder.
2. Give the new folder a name. I

Tips and assistance

Questions and answers

and plug contacts.
· USB driver not/incorrectly installed: Re-install.
Adjustment is to be reversed.| ·  Carry out a factory reset: Click on Test/ analyze transmitter > click on Carry out a factory reset.

If we could not answer your question, please contact your dealer or Testo Customer Service. Contact details can be found on the guarantee card or on the Internet at: www.testo.com

Testo SE & Co. KGaA
Celsiusstr. 2
79822 Titisee-Neustadt
Germany
Tel.: +49 7653 681-0
E-Mail: [email protected]
www.testo.com

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