GESTRA VKP 40Ex Manual

1
GESTRA Steam Systems
VKP 40Ex
VKP 40
Installation & Operating Instructions 81853502
Steam Trap Testing, Recording & Evaluation System TRAPtest VKP 40 (VKP 40Ex for applications
in potentially explosive areas) for checking steam traps of all types and makes for steam loss and
banking-up of condensate
EN
English

2
Contents
Description
System description VKP 40Ex, VKP 40..................................................................................................................................................... 3
Application VKP 40Ex, VKP 40 ................................................................................................................................................................. 3
Scope of supply VKP 40Ex, VKP 40.......................................................................................................................................................... 3
Safety Notes for VKP 40Ex
Notes.................................................................................................................................................................................................. 4, 5
Application ............................................................................................................................................................................................ 5
Maintenance notes VKPN 40Ex; VKPS 40Ex............................................................................................................................................. 5
Replacing storage batteries VKPN 40Ex............................................................................................................................................... 5, 6
Environmental requirements ................................................................................................................................................................... 6
System description VKP 40Ex, VKP 40
System requirements.............................................................................................................................................................................. 7
Data collector VKPN 40Ex, VKPN 40 ........................................................................................................................................................ 7
Measuring transducer VKPS 40Ex ........................................................................................................................................................... 7
Connecting cable VKPA 40 ...................................................................................................................................................................... 7
Test duration........................................................................................................................................................................................... 7
Dimensions and weights......................................................................................................................................................................... 8
Charging storage batteries of VKPN 40Ex, VKP 40 .................................................................................................................................. 8
Replacing storage batteries of VKPN 40 (VKPN 40Ex see section “Safety Notes”) .................................................................................... 9
Maintaining VKP 40................................................................................................................................................................................. 9
Spare parts............................................................................................................................................................................................. 9
Connecting and Commissioning Data Collector VKPN 40Ex, VKPN 40
Connecting data collector VKPN 40Ex or VKPN 40 to a PC ..................................................................................................................... 10
Connecting measuring transducer VKPS 40Ex to data collector VKPN 40Ex or VKPN 40 ......................................................................... 10
Commissioning data collector VKPN 40Ex or VKPN 40........................................................................................................................... 11
Switching off data collector................................................................................................................................................................... 12
Automatic de-activation........................................................................................................................................................................ 12
TRAPtest Software PC Program
Installing PC software ........................................................................................................................................................................... 13
Starting and quitting program ............................................................................................................................................................... 13
Deinstalling PC software ....................................................................................................................................................................... 13
Software menus at a glance ........................................................................................................................................................... 13, 14
Data Exchange between PC and Data Collector VKPN 40Ex or VKPN 40
VKPN 40Ex or VKPN 40 ......................................................................................................................................................................... 15
Checking Steam Traps
Test .............................................................................................................................................................................................. 16 – 18
Test measurement ................................................................................................................................................................................ 19
Foreign noise........................................................................................................................................................................................ 20
Reference points for measurement ................................................................................................................................................. 20, 21
Troubleshooting
Data collector VKPN 40EX, VKPN 40 ...................................................................................................................................................... 22
Measuring transducer VKPS 40Ex ......................................................................................................................................................... 22
PC screen display ................................................................................................................................................................................. 22
EC Type Approval Certificate
EC Type Approval .................................................................................................................................................................................. 23

3
Description
System description VKP 40Ex, VKP 40
The steam trap testing system consists of the data collector VKPN 40Ex or VKPN 40, the measuring transducer VKPS 40Ex and
the software for data management on the PC. The VKP 40Ex or VKP 40 can check and evaluate all types and makes of steam traps for
loss of live steam and banking-up of condensate.
The testing equipment detects and evaluates ultrasonic vibrations on the surface of the trap body caused by the media flowing through
the steam trap. The ultrasonic vibrations are transmitted through the trap body and picked up by the hand-held probe VKPS 40Ex by
pressing the sensor tip onto a point of the trap body that is characteristic of the respective trap type. The ultrasonic vibration is then
converted into electric pulses and – in the form of digital signals – fed via cable to the data collector VKPN 40Ex or VKPN 40. The
display of the data collector shows the signals received during the test as a standing curve. With this graphical representation one can
see at once whether the tested steam trap is working with or without loss of steam. The recorded ultrasonic vibration is analysed by
the data collector and evaluated in accordance with certain empirically ascertained limit values that depend on the trap type. During
the test the temperature of the steam trap is measured, too. Provided that a service pressure has been specified (on the PC), the
diagnostic system identifies blocked steam traps that cause banking-up of condensate.
If the annual operating hours and the steam costs have been entered in the system, the software can calculate the financial loss
caused by faulty steam traps. To quantify the steam loss caused by faulty steam traps, empirically obtained test values are used as
reference.
All curves recorded for a steam trap as well as the associated numerical test results and the corresponding analysis by the system can
be stored and printed out.
For more detailed information on the system and its functions refer to the “Online Documentation” of the TRAPtest
PC program.
Scope of supply VKP 40Ex, VKP 40
The carrying case TRAPtest VKP 40Ex or VKP 40 contains:
1 Hand-held data collector VKPN 40ex / VKPN 40
1 Measuring transducer VKPS 40ex / VKPS 40
1 Connecting cable VKPA 40 incl. power supply unit and connecting cable with serial connector for PC
3 Adaptor plugs for international application of the power supply unit
1 Strap for data collector
1 Holster for measuring transducer
1 TRAPtest software on CD Rom
1 Operating manual
Apply VKP 40Ex / VKP 40 only for testing steam traps that are used in steam and condensate systems. Note that banking
up of condensate can only be detected if the pressure in the system is at least 1.1 barg.
For more information on the test procedure see section “Checking Steam Traps”.
Use the equipment only for measurements carried out on voltagefree and earthed pipe systems! Mortal danger is
imminent if you carry out measurements on voltagecarrying objects.
In explosionrisk areas only the measuring transducer VKPS 40Ex connected via cable with the data collector VKPN 40Ex
may be used.
For more information see section: Safety Notes for VKP 40Ex!
Application VKP 40Ex, VKP 40
Attention
Do not connect the data collector to or disconnect it from the measuring transducer in explosionrisk areas!

4
Safety Notes for VKP 40Ex
This section of the operating manual refers to the handheld data collector VKPN 40Ex, the measuring transducer VKPS 40Ex and
the connecting cable VKPA 40.
The connecting cable VKPA 40 must not be used in explosionrisk areas!
Notes
The equipment to be used in explosionrisk areas bears the following labelling:
Measuring transducer VKPS 40Ex:
Data collector VKPN 40Ex:
Attention
The data collector VKPN 40Ex and the measuring transducer VKPS 40Ex are connected via cable.
This connection must not be made, opened or undone if the equipment is used in an explosionrisk area.
Do not open the data collector VKPN 40Ex and the measuring transducer VKPS 40Ex in explosionrisk areas!
In case of visible signs of damage or malfunctions take the data collector VKPN 40Ex and the measuring
transducer VKPS 40Ex immediately out of the explosionrisk area.
Tests must only be carried out by specially trained personnel and on voltagefree test objects.
The data collector VKPN 40Ex is provided with a storage battery for power supply.
The storage battery must only be charged outside the explosionrisk area with the aid of the connecting cable
VKPA 40.
The display of the data collector VKPN 40Ex shows the current battery charge. If the charging process takes extremely long or a
full charge cannot be obtained, the storage battery might have a malfunction and should therefore no longer be used but must be
replaced. Note that only a genuine GESTRA storage battery with protective circuit breaker must be used as replacement.
For more information on how to change the battery of the VKPN 40Ex see section “Replacing storage battery unit”.

5
Safety Notes for VKP 40Ex  continued 
Notes  continued 
If the battery is sufficiently charged for the planned steam trap testing, the data collector VKPN 40Ex can be unplugged from the
connecting cable. Before entering the explosion-risk area connect the measuring transducer VKPS 40Ex to the data collector
VKPN 40Ex. The connection between the data collector VKPN 40Ex and the measuring transducer VKPS 40Ex must not be opened in an
explosion-risk area.
The equipment can be carried into the explosion-risk area when it is switched on and when it is switched off.
Application of VKP 40Ex
Use VKP 40Ex only for testing steam traps!
Use the equipment only for measurements carried out on voltagefree and earthed pipe systems!
Mortal danger is imminent if you carry out measurements on voltagecarrying objects.
For more information on the test procedure see section “Checking Steam Traps”.
Maintenance notes VKPN 40Ex, VKPS 40Ex
Do not use the equipment in explosionrisk areas in case of visible signs of damage (e. g. cracks in the casing, faulty display,
worn down probe tip, …). Please contact GESTRA AG or a GESTRA company in your country.
The equipment is provided with a storage battery. To change this battery the equipment must be opened. Only trained personnel
conversant with the explosion protection directive is allowed to perform the replacement. Only genuine GESTRA replacement parts
must be used.
Replacing storage battery unit VKPN 40Ex
Make sure that the data collector is switched off before replacing the storage battery!
Save data before replacing the storage battery in order to avoid loss of data.
Make sure that the data collector is not connected via connecting cable VKPA 40 when replacing the storage
battery.
Incorrect charge levels are indicated after the replacement of the storage battery unit. It takes two charging/
discharging processes before the correct state of charge can be indicated.
The storage battery must be replaced when its charging capacity is no longer sufficient for the required test tasks. For this purpose
remove the 6 screws from the bottom of the equipment. Detach the upper part of the equipment from the lower part.
Attention: The upper part is connected to the lower part via a ribbon cable. This cable connection must not be detached. The storage
battery unit is embedded with protective elements on a green board. This unit is fixed to the bottom of the equipment by means of
4 screws. In order to exchange the battery this whole unit has to be replaced by a genuine GESTRA AG spare part.
Undo the 4 screws and remove the battery unit. Put the new battery unit onto the two centring pieces of the connector. Insert the
4 screws (M 2.5, M 3) and fasten them moderately. Then mount the two halves of the equipment together, making sure that the
gasket is properly inserted and the ribbon cable is not jammed between the two equipment parts. Then mount the 6 casing
screws and tighten them with a torque of 0.8 Nm. The battery can now be charged as described in section “Charging storage
batteries”. Note that the full performance of a new storage battery is achieved only after about 5 complete charge and discharge
cycles. Environmental regulations have to be taken into account when disposing of storage batteries.
Attention
When opening the equipment make sure that neither the connecting cable VKPA 40 nor the measuring
transducer VKPS 40Ex is connected.
Do not open the equipment in explosionrisk areas! To prevent damage to electronic components shield the
equipment against electrostatic discharges (e.s.d).
Any type of work on the equipment – apart from replacing the storage battery – must only be performed by
GESTRA AG.
When used for its intended purpose the diagnostic system is maintenance-free. However, we recommend that the system should be
sent to GESTRA AG Bremen every 5 years for a general inspection.
Attention

6
Environmental requirements
Temperature rating for data collector VKPN 40Ex:
Operating temperature: –10 °C to 50 °C
Temperature rating for measuring transducer VKPS 40Ex:
Operating temperature: –10 °C to 60 °C
The equipment approval corresponds to protection class “II 2G EEX ib IIC T4”:
Explosion group IIc
GAS
Category 2
Temperature class T4
Intrinsically safe according to “ib”
Max. operating voltage:
Data collector VKPN 40Ex: 3.3 V
Measuring transducer VKPS 40Ex: 5.0 V
Max. power consumption:
Data collector VKPN 40Ex: 0.25 A
Measuring transducer VKPS 40Ex: 0.03 A
Board with storage
battery unit
Ribbon cable


Lower part of VKPN 40Ex
Safety Notes for VKP 40Ex  continued 
Replacing storage battery unit of VKPN 40Ex  continued 
Gasket

Data collector VKPN 40Ex (opened)

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System description VKP 40Ex, VKP 40
System requirements
Operating system:
Windows 98, 2000, NT 4 (SP 6) XP.
CD ROM drive
Minimum requirements
Computer with Pentium®compatible processor with 700 MHz
100 MB free hard disk memory
128 MB RAM
800 x 600 screen resolution
Recommended:
Computer with Pentium®compatible processor with 1.2 GHz
200 MB free hard disk memory
256 MB RAM
Data collector VKPN 40Ex, VKPN 40
Plastic casing with backlit display. Illumination can be switched on and off.
Illumination switches off automatically after 10 sec. if no key is pressed.
Resolution of graphic display: 128 x 64 pixels.
Membrane keypad with 5 buttons.
Storage capacity sufficient for approx. 750 steam traps with 1 up to 256 test jobs.
Power supplied by two pre-installed Li-Polymer storage batteries, capacity 1800 mAh.
4 hours charging time for an empty battery provides approx. 8 hours operating time.
Max. operating voltage 3.3 V
Max. power consumption 0.25 A
Operating temperature –10 °C to 50 °C
Max. admissible service temperature: 50 °C
Min. admissible service temperature: –10 °C
Degree of humidity: 0 % to 90 % (not condensed)
Protection IP 65
VKPN 40Ex: Approval BVS 04 ATEX E 234
CE 0158 Ex II 2G EEX ib IIC T4
Measuring transducer VKPS 40Ex
Casing made of titanium (3.7035)
Operating temperature –10 °C to 60 °C
Measuring range for surface temperature: 0 °C to 350 °C
Max. admissible service temperature: 60 °C
Min. admissible service temperature: –10 °C
Power supplied by storage battery of the data collector.
Max. operating voltage 5.0 V
Max. power consumption 0.03 A
VKPS 40Ex: Approval BVS 04 ATEX E 234
CE 0158 Ex II 2G EEX ib IIC T4
Connecting cable VKPA 40
The connecting cable VKPA 40 consists of the power supply unit with integrated connecting cable and circular plug for connecting the
data collector VKPN 40Ex or VKPN 40 and the connecting cable with a serial connector for connecting the PC.
With the power supply unit connected, the connecting cable connects the equipment with the PC and allows charging of the batteries
installed in the data collector. To adapt the connector to national standards choose a suitable adaptor plug. Remove the adaptor plug
from the power supply unit and attach the appropriate adaptor plug for your country. (Please order separate adaptor for the USA)
Power supply unit: 100 – 240 V / 47 – 63 Hz; output 12 V
Test duration
Min. 10 sec., max. 20 sec.
If the sound level exceeds or falls below the threshold value during a test before 10 seconds have passed, the test procedure wil be
finished after 10 seconds. Otherwise the test takes 20 seconds.
For more information refer to the PC Online Documentation.

8
Technical Data VKP 40Ex, VKP 40  continued 
Dimensions and weights
Dimensions
[mm]
Carrying case: approx. 370 x 135 x 550
Data collector VKPN: approx. 125 x 95 x 227
approx. 115 x 95 x 227 without strap
(width x height x length)
Measuring transducer VKPS:
(without connecting cable): approx. 36 x 210 (diameter x length)
Weights
Carrying case with contents approx.: 5.1 kg
Data collector VKPN 40Ex approx.: 600 g
Data collector VKPN 40 approx.: 540 g
Measuring transducer VKPS 40Ex approx.: 440 g
Charging storage batteries of VKPN 40Ex, VKP 40
Use only the supplied connecting cable VKPA 40 for charging the storage batteries!
Charge only the storage battery unit supplied by GESTRA AG!
Attention: The connecting cable VKPA 40 must not be used in explosionrisk areas!
The storage battery of the VKPN 40Ex must only be charged outside of an explosionrisk area!
The charging of an empty battery takes approximately 6 hours (ambient temperature 20 °C).
With the power supply unit connected, the data collector cannot be switched off.
By pressing the ESC key in the main menu you can view the charge level indicator in the title window.
Circular plug
Adaptor
for
connector


Data collector VKPN 40Ex with
connecting cable VKPA 40
The storage battery pack becomes warm during recharging. This is normal and not a malfunction or defect.
Connect the data collector VKPN 40Ex or VKPN 40 with the connecting cable VKPA 40: Insert the circular plug in the left-hand jack of
the data collector – cf. picture below – and plug the power supply unit into an earthed socket (100-240 V / 47-63 Hz).
When the data collector VKPN 40Ex / VKPN 40 is switched on, the title window of the TRAPtest program indicating the version number,
the current date and the charge level appears. During first commissioning or if the batteries are flat the date 2000.01.01 will be
shown. The date will be automatically updated during the next communication between the data collector and the PC.
The charging process is indicated on the display by an arrow to the left of the charge indicator. Once the battery is fully recharged the
charge indicator is shown as a black bar.
Pull the sleeve of the plug to unplug the device.
Attention
Power supply
unit

Connecting cable
VKPN 40


9
Technical Data VKP 40Ex, VKP 40  continued 
Replacing storage batteries VKPN 40
Make sure that the data collector is switched off before replacing the storage battery!
Save data before replacing the storage battery unit in order to avoid loss of data.
Make sure that the data collector is not connected via connecting cable VKPA 40 when replacing the storage
battery.
Incorrect charge levels are indicated after the replacement of the storage battery unit. It takes two charging/
discharging processes before the correct state of charge can be indicated.
Do not remove the storage battery pack as some of the acid electrolyte might escape during the process.
Do not throw storage batteries in water or fire (risk of explosion)!
Old storage batteries should not be disposed of with normal household waste – hand them in at your recycling
centre.
Maintaining VKP 40
When used for its intended purpose the diagnostic system is maintenance-free. However, we recommend that the system should be
sent to GESTRA AG Bremen every 5 years for a general inspection.
Spare Parts / Accessories
The storage battery must be replaced when its charging capacity is no longer sufficient for the required test tasks. For this purpose
remove the 6 screws from the bottom of the equipment. Detach the upper part of the equipment from the lower part.
Attention: The upper part is connected to the lower part via a ribbon cable. This cable connection must not be detached. The storage
battery unit is embedded with protective elements on a green board. This unit is fixed to the bottom of the equipment by means of
4 screws. In order to exchange the battery this whole unit has to be replaced by a genuine GESTRA AG spare part. Undo the
4 screws and remove the battery unit. Put the new battery unit onto the two centring pieces of the connector. Insert two M2.5 mm
screws and fasten them with 2 Nm, then insert the other two M3 screws and fasten them with 2.5 Nm. Then mount the two halves of
the equipment together, making sure that the gasket is properly inserted and the ribbon cable is not jammed between the two
equipment parts. Then mount the 6 screws and tighten them with a torque of 0.8 Nm. The battery can now be charged as described
in section “Charging storage batteries”. Note that the full performance of a new storage battery is achieved only after about 5
complete charge and discharge cycles. Environmental regulations have to be taken into account when disposing of storage batteries.
(See pictures in section “Replacing storage battery unit”).
Attention
Designation Stock code
Complete storage battery unit for VKPN 40Ex / VKPN 40 (incl. 1 set of screws) 052475
Strap 052479
Holster for VKPS 40Ex 052478
Connecting cable VKPA 40 compl., incl. power supply unit 052476
Adaptor set for connector 052477
VKP 40 USB / Serial adaptor and software 052480
Name plates, label 389299
Charging set 11.. (for car) 15 VDC 1502770

10
Connecting and Commissioning Data Collector VKPN 40Ex, VKPN 40
Connecting data collector VKPN 40Ex or VKPN 40 to a PC
Connect the power supply unit of the connecting cable VKPA 40 with an earthed socket and insert the circular plug of the connecting
cable into the left-hand jack of the data collector VKPN 40Ex / VKPN 40.
If the power supply unit is not connected the data collector cannot communicate with the PC.
Connnect the serial plug of the connecting cable with the PC. Use a commercially available interface connection USB-RS 232 to
connect the data collector via a USB interface to the PC. Then confirm the selected interface (Com 1, Com 2, Com 3, Com 4 or Com 5)
in the TRAPtest menu EXTRAS/Interface on the PC.
Attention: Do not use the connecting cable VKPA40 in explosionrisk areas!
Connecting the measuring transducer VKPS 40Ex to the data collector VKPN 40Ex or VKPN 40
Note when using the VKPN 40EX in explosionrisk areas:
Make sure that the measuring transducer VKPS 40Ex is connected to the data collector VKPN 40Ex before you
enter an explosionrisk area. Do not open this connection in explosionrisk areas. The two connected devices
(VKPN 40Ex with VKPS 40Ex) can be in switched-on or switched-off mode when they are carrried into an explosion-
risk area.
Do not use the data collector VKPN in explosionrisk areas!
Insert the circular plug of the connecting cable VKPS 40Ex into the right-hand jack of the data collector VKPN 40Ex / VKPN 40. To prevent
loss of data switch off the data collector VKPN 40 / VKPN 40 EX before establishing or undoing the connection to the measuring transducer
VKPS 40 / VKPS 40 Ex.
To disconnect the device pull the sleeve of the plug.
Danger

Circular plug

Data collector VKPN 40Ex with connecting cable VKPA 40
Serial plug Adaptor for connector

Power supply unit

Connecting cable
VKPA 40
Data collector VKPN 40Ex,
VKPN 40 with the measuring transducer VKPS 40Ex
Measuring transducer
VKPS 40Ex


11
In the menu TEST steam traps can be checked for loss of live steam – provided that data records and test jobs have been entered
previously on the PC. Immediately after each trap test the data collector will evaluate the recorded sound values. The test results will
be saved.
In the menu TEST MEASUREMENT steam traps can be checked for loss of live steam – without prior input of data records and
without the creation of test jobs. Immediately after each trap test the data collector will evaluate the recorded sound values.
The test results can be saved.
The menu DATA EXCHANGE enables communication with the PC and the organization of the data collector on the PC: test jobs
are transferred from the PC to the data collector and test resuts are sent from the data collector to the PC. The test jobs for the data
collector can be deleted on the PC.
In the menu LANGUAGE SETTING you can select the user interface language.
Use the arrow buttons , to select (mark) the desired menu and then press the ENTER key. The current position of the cursor
is indicated by .
Connecting and Commissioning Data Collector VKPN 40Ex, VKPN 40  continued 
Commissioning data collector VKPN 40Ex or VKPN 40
Do not use a ball pen or any other sharp object for pressing the buttons of the data collector!
Press button START to start the data collector VKPN 40Ex / VKPN 40. The title window of the TRAPtest program appears, showing the
version number and the current date.
During first commissioning or if the batteries are flat the date 2000.01.01 will be shown. The date will be automatically updated during
the next communication between the data collector and the PC.



When the date 2000.01.01 is shown, the data collector can only be put into operation if the battery has been
recharged. For more information see section “Charging storage batteries” and “Fault finding list for trouble
shooting”. During the next communication between the data colllector and the PC the date will be updated.
Press the ENTER key to call up the main menu.
Main menu of the data collector
Note
Version
Date
Battery charging indicator
The contrast of the LC display can be changed in this window by pressing the arrow buttons.
Arrow increases the contrast and arrow decreases the contrast.
Readjusting the contrast setting
The default contrast setting is medium.
The user can increase or decrease the contrast by 5 increments.
Note that the contrast setting of the LC display of the VKP 40 is temperature dependent.



12
Use the arrow button to select (mark) the item QUIT of the main menu of the data collector and press the ENTER key.
The data collector is now switched off.
If the power supply unit is connected, the data collector cannot be switched off.
By pressing the ESC key in the main menu you can view the charge level indicator in the title window.
For more information refer to the PC Online Documentation.

Connecting and Commissioning Data Collector VKPN 40Ex, VKPN 40  continued 
Switching off the data collector
If the data collector is not operated for more than 10 minutes, it is switched off automatically.
Data stored on the data collector will be saved before the equipment is switched off. This process takes approx. 120 sec.
Automatic deactivation
After switching the equipment on, the data will be loaded into the RAM memory of the data collector. This process takes approx.
30 sec.

13
Quit all programs on you computer.
If an older version of the TRAPtest VKP 40 software is already installed on your PC:
Save the companies that you have created in a directory of your choice. You will find the data under C:/PROGRAMS/Gestra/TRAPtest
VKP40 / Companies. Then de-install the older version of the TRAPtest VKP 40 software. Please make sure that the whole program folder
is deleted and, if necessary, delete any remaining directories and data.
Insert the supplied CD in your CD-ROM drive.
Upon insertion of the TRAPtest software CD the installation program starts automatically. Follow the on-screen prompts to complete the
installation.
The installation setup creates the folder GESTRA where the TRAPtest VKP 40 program will be stored. An new program icon is created on
the desktop.
TRAPtest software (PC program)
Installing the PC software
Starting the program
To start the program click the START button, point to Programs and then click TRAPtest VKP 40 or double-click on the TRAPtest
VKP 40 icon.
Quitting the program
To quit the program click the QUIT button in the main menu of the TRAPtest program.
Starting and quitting the program
a) TRAPtest V 1.00: To de-install the program click Uninstall in the program folder TRAPtest VKP 40.
b) TRAPtest from V 1.10: To de-install the program click Control panel / Software.
Please make sure that the whole program folder is deleted and, if necessary, delete any remaining directories and data.
Deinstalling the PC software
Menu Test Objects
In the menu Test Objects all steam trap related data and the associated plant sections are entered and organized.
Menu Test Tasks
In the menu Test Tasks task lists detailing the steam traps to be tested are created and organized.
Menu Data Collector
In the menu Data Collector the communication between the PC and the data collector is established and the test tasks for the data
collector are organized.
Menu Extras
The menu Extras comprises the following submenus:
Manufacturer Import
Tester Organize company
Limit values Load update
Language Excel import
Interface Excel export
Settings Clean up database
Organize steam traps Info
In the menu Manufacturer you can take down the particulars of the steam trap manufacturer whose steam traps are installed in the
plant.
In the menu Tester the names of the employees entrusted with the task of checking the steam traps are entered.
In the menu Limit Values the specified limit sound values of the different steam trap systems are indicated.
In the menu Language you can select, edit or add a language.
In the menu Interface all available ports that can be selected are shown.
In the menu Settings the units [bar, °C, kg/h] or [psi, °F, lb/h] for calculating the loss can be selected.
In the menu Organize steam trap all steam trap types and names can be listed and organized.
The system features a default list of all GESTRA trap designations including the associated functional types.
In the menu Import all data records created with the predecessor version (VKP 30) can be imported.
For this purpose make sure that:  The VKP 30 software is installed on your PC.
 The company to be imported is active.
TRAPtest software menus at a glance

14
TRAPtest software (PC program)  continued 
TRAPtest software menus at a glance  continued 
The Import/Export function allows the import of databases (companies) created on other PCs and the export of databases (companies)
to other PCs.
Menu Financial Analysis
Provided that the specific steam costs and annual operating hours have been entered in the system, the annual loss caused by
faulty steam traps can be calculated and analysed in this menu. To quantify the steam loss caused by faulty steam traps, empirically
obtained test values are used as reference.
Online Documentation
The Online Documentation offers a detailed description of the functions of the diagnostic system. It is available in GERMAN and
ENGLISH. Should you require a translation in your language please contact the manufacturer or the respective subsidiary or agency in
your country.
When a designation is deleted the whole database created under this designation will be deleted!
Attention
In the menu Organize company the designation of the respective database (e. g. the name of the company, department, section or
building) is entered here.
Note that there is no confirmation request. The old operating system and all data that may still be stored on
the data collector will be deleted.
Attention
In the menu Excel Import you can import data from the program MS Excel.
In the menu Excel Export you can export data from the TRAPtest VKP 40 program to an Excel spreadsheet (from Excel 97).
In the menu Clean up database the TRAPtest VKP 40 program compresses the database.
The menu Info states the manufacturer, the version number of the installed software and the currently selected database designation
(name of the company).
The menu Load update enables the installation of software updates for the data collector VKPN 40Ex or VKPN 40.

15
Data Exchange between PC and Data Collector VKPN 40Ex or VKPN 40
The menu DATA COLLECTOR enables the communication between the data collector and the PC and the organization of the data
collector via PC. For more information refer to section “Transferring test tasks to data collector”, “Deleting test tasks for data collector”
and “Transferring test results from data collector to PC” in the Online Documentation of the PC program.
Make sure that the data collector is connected and ready for use and then select the submenu “Data exchange” of the main menu of
the data collector (“Connecting and Commissioning” see pages 10 – 12).
When selecting the menu “Data exchange” the following display appears:
During the data exchange the following information on the transferred data will also be indicated:
“Tasks to VKPN 40” (if test tasks are transferred to the data collector) or
“Tasks to PC” (if test results are uploaded to the PC) or
“Delete task” (if test tasks are deleted in the data collector).
During the data transfer the following display appears:
If the power supply unit is not connected the data collector cannot communicate with the PC.
Attention
A safety protocol is created in order to prevent any loss of data during the transfer.
Consequently, the transfer rate can vary between 30 seconds and 1.5 minutes per 100 steam trapsl
Once the data transfer is completed the display “Waiting for data” appears.
Press the ESC key to return to the main menu of the data collector.
Note
Number of test objects
still to be transferred
Total number of all test objects
for the currently transferred test task
No. of test task

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Use the arrow buttons , to mark the test task in question and press the ENTER key.
The cursor position is indicated by . To scroll the contents of a window keep the arrow button pressed down.
The display shows the test number, the plant designation and the designation of the plant section as well as the task list of the
steam traps to be checked (test objects) and the individual traps with their places of installation.
In the menu TEST steam traps can be checked for loss of live steam – provided that data records and test tasks have been
entered previously on the PC. The test results will be saved.
Checking Steam Traps
Test
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Note
Connect the measuring transducer VKPS 40Ex with the data collector (“Connecting and commissioning” see pages 10 – 12).
When the data collector is ready for operation select the submenu TEST.
The display will show the test tasks transferred from the PC to the data collector as well as their counting numbers, the associated
plant designation and the designation of the plant section.
During the test the measuring transducer VKPS 40Ex also measures the surface temperature of the steam trap. If the
service pressure prevailing at the place of installation has been specified, the diagnostic system will be able to identify
the steam trap that causes the banking-up of condensate by comparing the boiling temperature associated with the
service pressure and the temperature measured at the steam trap.
For more information see Online-Documentation / Menu Test Objects / Creating Test Objects.
Attention
For a correct temperature measurement it is important that the surface of the reference point on the trap
where the tip of the measuring probe is applied is smooth and metalically bare. Otherwise considerable
deviations between the temperature reading and the actual temperature will be the consequence, resulting in
faulty analysis and incorrect evaluation.
Serial no. of test task Designation of plant
Designation of plant section
Place of
installation Designation of trap type
Designation of plant
Designation of plant
section
Number of traps in test task
Number of test task

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Use the arrow buttons , to mark the steam trap to be tested and press the ENTER key. The current position of the cursor is
indicated by . To scroll the contents of a window keep the arrow button pressed down.
The limit sound value (LV) and the threshold value (TV) are displayed as horizontal lines in the graphical representation of the sound
level.
Checking Steam Traps  continued 
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If the selected steam trap cannot or should not be checked for reasons given in the following list of comments, call up this list by using
the arrow buttons or .
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Use the arrow buttons , to select (mark) the respective comment in the list and then press the ENTER key.
By pressing the ENTER key the comment will be saved and the task list with the cursor positioned beside the next steam trap to be
tested appears.
If the comment “Defective gasket” has been selected, the program will ask you if you also want to test the steam trap. Select “Yes” if
you want to carry out the test. Choose “No” if you only want to enter the selected comment.
To check the selected steam trap, put the tip of the measuring transducer probe VKPS 40Ex vertically onto the surface of the trap body
on the specified reference point (see section “Reference point for measurement”). The test starts once the measuring transducer is
pressed down to the stop. The LED of the measuring transducer lights up and the display of the data collector shows the text “Test
running”.
During the test the recorded readings are shown as a graph.
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Test  continued 
The connection between the data collector and the measuring transducer must not be disconnected during
this operating condition. Any disconnection could lead to errors during the subsequent data transfer from data
collector to PC.
The storage batteries of the data collector supply the measuring transducer with power. Avoid long
interruptions between selecting the steam trap for testing (graphical representation on the display) and the
test start so that the batteries can hold charge for a longer period of time.
Note
As soon as the graphical representation is displayed by the data collector, the measuring transducer will be
automatically switched off. (The LED of the measuring transducer lights up when the test starts).
Attention
Sound intensity
Threshold value
Limit value

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If the sound level exceeds or falls below the threshold value during a test before 10 seconds have passed, the test procedure wil be
finished after 10 seconds. Otherwise the test takes 20 seconds.
The test result will be shown after the test:
Checking Steam Traps  continued 
Test  continued 
Possible evaluations:
OK: Yes Trap works without steam loss
OK: No Trap defective
OK: BC Banking-up of condensate possible (only if the service pressure has been specified on the PC)
OK: FN Trap influenced by foreign noise (see section “Foreign noise”)
For more information refer to section “Evaluation criteria” and “Evaluating steam traps” in the Online Documentation.
If you want to repeat the test, use the arrow button and then press the ENTER key.
(The display shows again the graphical representation with the limit and threshold sound values LV and TV in the form of horizontal
lines).
To save the test result press the ENTER key.
After saving the test results the task list appears. Checked steam traps are ticked off .
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The next steam trap to be tested is marked in the list with the symbol .
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Test result
Place of installation
Designations of trap types
Designation of plant
Designation of plant
section
Number of traps in test task
Number of test task
 Steam trap checked or
with comment
(without : steam trap
not checked)

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Use the arrow buttons , to select (mark) the absolute steam pressure for the trap to be tested and then press the ENTER key.
Select the 0.0 bar setting if you do not want to enter a pressure value or if you do not know the exact steam pressure.
The display shows the following graphic:
Use the arrow buttons , to select (mark) the place of installation of the steam trap and then press the ENTER key.
The display shows the following graphic: TYPE.
Test measurement
In the menu TEST MEASUREMENT steam traps can be checked for loss of live steam – without prior input of data records and
without the creation of test jobs. The test results can be saved.
Make sure that the data collector is connected and ready for use and then select the submenu TEST MEASUREMENT of the main menu
(“Connecting and Commissioning” see pages 10 - 12).
The display shows the following graphic: LOCATION.
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Use the arrow buttons , to select (mark) the type of steam trap in question and then press the ENTER key.
The display shows the following: STEAM PRESSURE
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Checking Steam Traps  continued 
For the rest of the steam trap test proceed as described in section TEST.
Note that the test results will not be saved.
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Press the tip of the measuring probe onto various points in the close vicinity of the steam trap (supports, uninsulated pipes upstream
and downstream of the trap) to detect the respective sound levels.
By comparing the MEAN VALUE with the MEASURED VALUE the influence of foreign noise on the test can be confirmed or ruled out.
If the detected sound level is below the mean value of the trap test (MEASURED VALUE < MEAN VALUE), an influence of foreign noise
can be ruled out.
In this case use the arrow buttons , to select FOREIGN NOISE: NO.
If the detected sound level exceeds the mean value of the trap test (MEASURED VALUE > MEAN VALUE), the place where the steam
trap is installed is influenced by foreign noise. In this case use the arrow buttons , to select FOREIGN NOISE: YES.
Press the ENTER key to show the recorded sound curve and its evaluation on the display.
For more information on the evaluation of steam traps please refer to the Online Help of the PC program TRAPtest VKP 40 (from
version V3.0).
To save the result press the ENTER key.
Foreign noise
Checking Steam Traps  continued 
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Note: Make sure that the measuring probe is applied to the same points on the trap bodies of steam traps of the same
type so that the test results of the steam traps can be compared and changes can be ascertained when repeating the
tests.
Provided that the upstream pressure has been specified on the PC, the temperature of the trap body will also be
measured and used for the analysis. In this case the surface of the reference point on the trap where the tip of the
measuring probe is applied has to be smooth and metallically bare. Otherwise considerable deviations between the
temperature reading and the actual temperature will be the consequence, resulting in faulty analysis and incorrect
evaluation.
Note that the probe shall be applied at right angles to the trap surface.
Reference points for measurement
If sound levels (mean values) exceed the specified limits, the display shows the screen Foreign Noise Test
For more information refer to section “Evaluation criteria” and “Evaluating steam traps” of the Online Documentation.
Sensed at trap
Up-to-the-minute reading during
foreign noise test