STAUFF PPC-06, PPC-08, PPC-12 Operating Instructions Manual

Stauff Hydraulic Tester
PPC-06/08/12
Operating instructions
Version 2.1
2007-08-24
Operating Instructions Hydraulic Tester PPC-06/08/12
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Walter Stauffenberg GmbH & Co. KG
Im Ehrenfeld 4 D-58791 Werdohl Postfach 1745 D-58777 Werdohl
Germany
Telefon: +49 (0) 2392 / 916 – 0 Telefax: +49 (0) 2392 / 2505
E-Mail: sales@stauff.com Internet: www.stauff.com
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Directory
1 Unpacking.....................................................................................................................................5
1.1 Protection of PPC-06/08/12 ...................................................................................................5
2 General remarks ..........................................................................................................................6
2.1 Instrument types.....................................................................................................................6
3 Functions and settings ...............................................................................................................7
3.1 Operating the PPC-06/08/12..................................................................................................9
3.1.1 Switching on the PPC ............................................................................................................9
3.1.2 Display..................................................................................................................................10
3.1.3 Connection of sensors .........................................................................................................11
3.1.4 Operation and display control ..............................................................................................12
3.1.5 Number input........................................................................................................................14
3.1.6 Text input .............................................................................................................................16
3.2 Measurement and display....................................................................................................18
3.2.1 Display of measured values (ACT – MIN - MAX) ................................................................18
3.2.2 Deleting MIN / MAX memory ...............................................................................................21
3.2.3 Temperature.........................................................................................................................21
3.2.4 Differential values.................................................................................................................22
3.2.5 Alignment of I1 and I2 ..........................................................................................................23
3.2.6 Optional channel (combination) ...........................................................................................24
3.3 Data output...........................................................................................................................28
3.3.1 Online function .....................................................................................................................29
3.3.2 Online function with PC / Laptop..........................................................................................30
4 Auxiliary sensors / current - voltage measurement...............................................................34
4.1 Configuration of auxiliary sensors........................................................................................35
4.2 Frequency measurement .....................................................................................................37
5 Additional features of the PPC-06/08/12..................................................................................39
5.1 Memory capability ................................................................................................................41
5.2 Manual recording of measured values.................................................................................43
5.3 Software-driven recording of measured values ...................................................................45
5.3.1 Edge-triggered recording .................................................................................................
....46
5.3.2 Externally triggered recording ..............................................................................................50
5.3.3 Manually triggered recording ...............................................................................................54
5.3.4 Time triggered recording......................................................................................................58
5.4 Memory output .....................................................................................................................62
6 Configuration PPC-06/08/12......................................................................................................65
6.1 Device Setup........................................................................................................................66
6.1.1 RS 232 interface test............................................................................................................67
6.2 Battery Service.....................................................................................................................68
6.3 System setup .......................................................................................................................69
6.3.1 System Reset.......................................................................................................................70
6.3.2 Memory setting.....................................................................................................................71
6.3.3 User identification.................................................................................................................72
7 Quickstart PC-software PPC-SOFT..........................................................................................73
7.1 Installation ............................................................................................................................73
7.2 RS 232 interface test............................................................................................................74
7.3 Measurement transfer from PPC-06/08/12 to PC-Soft ........................................................75
7.4 Measurement recording by online mode..............................................................................77
7.5 Online-Help ..........................................................................................................................79
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8 Technical Appendix – Memory Management.......................................................................... 80
8.1 Expressions and Definitions ........................................................................................................80
8.2 Recording time, Memory -Interval and Memory capacity ............................................................81
8.3 Recording a fix number of MIN/MAX-readings per channel ........................................................ 83
8.4 Traditional Memory Concept versus PPC-06/08/12 Memory Concept.......................................84
8.5 PPC-06/08/12 Setup....................................................................................................................85
8.5.1 Measuring Points .................................................................................................................85
8.5.2 Memory –Rate = storing rate ...............................................................................................86
8.6 Customer’s benefits based on PPC-06/08/12 memory management (Points/Channel) .............87
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1 Unpacking
Please inform the shipping department at Walter Stauffenberg GmbH & Co. KG if the delivery package is damaged. When removing the PPC-06/08/12 out of the package make sure that it is in good condition.
1.1 Protection of PPC-06/08/12
Do not place any objects on the PPC-06/08/12. Protect it against direct sunlight, high humidity, heavy vibrations, extreme temperatures and chemically aggressive environments.
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2 General remarks
The STAUFF PPC series of „Hydraulic Testers“ are service and diagnostic instruments to measure pressure, flow, temperature, rotational speed (frequency), current and voltage. Depending on the instrument type the user is able to operate with up to 6 channels (inputs), allowing accurate hydraulic diagnostics. Measured values can be transferred to a PC or printer via an integrated RS 232 interface. The instrument has an internal memory which can hold up to 240 independent measurement values. Each individual data set holds all single measured values of each of the connected sensors / inputs. It is possible to store the entire data set as well as a single measurement (curve) under the identical name. This makes a later measurement analysis easier. For further measurement evaluation and processing on a PC, the software packet PPC-Soft (for Windows 95
®
/ 98® / XP® and Windows NT®) is also
available.
The graphic LCD-display shows up to six channels in an easy-to-read form. Every measurement can be displayed as an actual, minimum and maximum value. In the optional line mathematical operations are displayed (hydraulic power + volume). It is also possible to present the measured values graphically as a curve.
Attention:
Before first operation of the Hydraulic Testers PPC-06/08/12 charge the internal battery for min. 16 hours!!
2.1 Instrument types
Depending on the application requirement, STAUFF PPC „Hydraulic Testers“ are available in three different types:
TYPE / Model Channels MIN / Max memory
values PPC-06 3 60.000 PPC-08 4 125.000 PPC-12 6 250.000
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3 Functions and settings
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1. „ON / OFF“ is used to switch the instrument on and off.
2. „SETUP / OPTION“ is used to change system settings.
3. The „arrow“ keys are used to select lines and functions.
4. The „arrow“ keys are used to select lines and functions.
5. „START / ENTER“:
„START“ is used to start data (measurement) recording.
„ENTER“ is used to poll sub-functions and accept (memorize) changed function
values.
6. „STOP / ESC“:
„STOP“ is used to stop data (measurement) recording.
„ESC“ is used to stop the function value changing and to close sub-functions. The
previous menu is displayed.
!!! Changed settings won’t be recalled !!!
7. „I1-I2 / I1=I2“ is used for calculation of the difference between measurement channel 1 and measurement channel 2. The value displayed on channel 2 is the difference I1 – I2. It is possible to align I2 on I1. The I1=I2 key sets measurement channel 2 equal to measurement channel 1 (balancing function).
8. After pressing and holding “TEMP“ the temperature data of all channels are shown.
9. „DATA OUTPUT“ is used to start data output to PC, printer or display.
10. „RECORD“ is used to record and store measurements.
11. „MIN/MAX ACTUAL / RESET“:
„MIN/MAX ACTUAL“ switches display to ACTUAL, MINIMUM and MAXIMUM.
„RESET“ deletes MIN/MAX-values.
12. Up to 6 sensors from the PPC 06/08/12 -program can be simultaneously connected to the “SENSOR INPUTS“. They are automatically recognised by the instrument. An adapter is necessary for auxiliary sensors, current and voltage measurements.
13. „LOW-VOLTAGE SOCKET“ enables external voltage supply and battery charging via power supply unit.
14. External instruments like PC, printer, etc. are connected to the “DATA OUTPUT SOCKET“.
15. The Graphic LCD display shows measurement values, settings and graphics.
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3.1 Operating the PPC-06/08/12
The main functions of the instrument, such as measuring and displaying, recording measurements („RECORD“), data output („DATA OUTPUT“) and changing the instrument settings („SETUP / OPTION“) are selected directly through the keyboard. The „arrow“ keys select the desired menu. „ENTER“ brings up the selected menu item. The menu item accompanying function value (parameter) is highlighted.
Changing of the function values is done with the “arrow“ keys. Pressing “ENTER“ confirms and stores the selected value.
3.1.1 Switching on the PPC
Press “ON / OFF“ for two seconds
to switch on the instrument. The current battery state of
the rechargeable battery is shown on the display for a short time.
The version number indicates the internal manufacturing key. The current battery state is given in percent and illustrated with the black section of the battery on the display. If the battery state is lower than 40 % you will find the message “BAT. SERVICE STATUS” on the display.
If the battery state is 0 % you have to use an external voltage supply. The rechargeable battery will then be charged automatically.
After approx. 8 seconds the display switches to simple measured value representation and shows the actual measurement values (ACT-values)
STAUFF TEST
PPC-12 3778R9-10101
BATT: LEVEL <=50%
In - ACT 56
1 223,6 bar
2 212,5 bar 3 77.5 U/min 4 200 U/min 5 420 l/min 6 448 bar P 53.4 kW
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3.1.2 Display
The graphic LCD-display of the instrument has a maximum resolution of 128 x 64 pixel. The visible area is 72 x 40 mm. Using an 8-line representation (status, 6 channels (inputs), optional line) the digit height is 4,2 mm. Indicated values are adapted to the display size through an automatic digit height setting, for example if there are less then four channels for the actual values the numbers on the display will have double the size.
The text mode is separated into 8 lines and 4 columns. The first column shows the selected channel. The second and third columns show the corresponding measured values. Here it is possible to choose between four different options:
ACT Æ actual measured value (third column empty) ACT - MIN Æ actual measured value – minimum value ACT - MAX Æ actual measured value – maximum value MIN - MAX Æ minimum value – maximum value
Column four shows the UNITS of the measured values.
The first line of the display shows the status (i.e. recording, memorizing), the measured value identifier (ACT, MIN, MAX) or the menu name. Lines 2 – 7 show the measured values. Line 8 is an optional line, in which calculated values like P (power) and V (volume) are shown.
Curves from measured values can be displayed in the graphic mode
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3.1.3 Connection of sensors
The sensors are connected to the input jack of the PPC-06/08/12 via an interconnection cable. The red points on the plugs must correspond with the red points on the sockets. The measuring range is scaled through automatic sensor recognition and the measured value will be shown on the display.
Attention!! Safety Instructions for using sensors (i.e. the 1.000 bar pressure sensor):
Please pay attention to built in test points acc. to rated nominal pressure and specified safety factors.
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3.1.4 Operation and display control
The navigating and programming of the PPC-06/08/12 unit is basically done as follows. For example look at the „SETUP“ menu:
Pressing „SETUP / OPTION“ opens the „SETUP“ –menu.
By pressing the „arrow“-keys the Cursor can be navigated through the menu.
By pressing „arrow“ –key up, the cursor jumps from „AUX.SENSOR“ to „CONTRAST (%)“
By pressing „Start / Enter“ the
- cursor jumps right to the function value, contrast can now be adjusted with the arrow keys. By pressing „Start / Enter“ once again, the value will be confirmed and the cursor jumps back to „CONTRAST (%)“.
Depending on the menu item, after pressing „Start / Enter“, a new menu is opened.
The submenu „INPUT“ of the menu item „AUX.SENSOR>“ is opened.
ESC -- SETUP -- 56
CONTRAST (%) 50
AUX. SENSOR> COMBINATION> RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
ESC -- SETUP -- 56 CONTRAST (%) 50
AUX. SENSOR>
VERKNUEPFUNG> RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
ESC -- SETUP -- 56 CONTRAST (%) 50 AUX. SENSOR> COMBINATION> RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
ESC -- SETUP -- 56 CONTRAST (%) 50
AUX. SENSOR>
COMBINATION > RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
ESC -- INPUT 56
ANALOGUE> I1
FREQUENCY>
ESC -- SETUP -- 56
CONTRAST (%) 50
AUX. SENSOR> COMBINATION> RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
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By pressing „Stop / ESC“ the current menu is closed and the prior menu is displayed.
The programming of numbers and text is described in chapter 3.1.5, and 3.1.6 respectively.
ESC -- SETUP -- 56 CONTRAST (%) 50
AUX. SENSOR>
COMBINATION > RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
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3.1.5 Number input
When configuring auxiliary sensors (chapter 4.1) the measurement range (i.e. 0 ... 250 bar) and the corresponding initial and end value (i.e. 0 ... 20 mA) have to be programmed.
The next example shows the number input of an auxiliary sensor.
After selecting a number, this number is highlighted. By pressing the „arrow“ keys, the former number is deleted, the first digit is highlighted and changed. The first digit of the number has to be confirmed by pressing „START / ENTER“ and the following digit is highlighted. „STOP / ESC“ terminates the input and stores the new number.
Example:
select number
confirm number
ESC -- ANALOGUE -- 56 In1
UNITS: bar
FROM: 0 TO: 600 SIGNAL: mA FROM: 4 TO: 20
ESC -- ANALOGUE -- 56 In1 UNITS: bar
FROM: 0
TO: 600
SIGNAL: mA FROM: 4 TO: 20
ESC -- ANALOGUE -- 56 In1 UNITS: bar FROM: 0
TO: 600
SIGNAL: mA FROM: 4 TO: 20
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change first digit
confirm first digit
change second digit
confirm second digit
complete number input
ESC -- ANALOGUE -- 56 In1 UNITS: bar FROM: 5_ _ _ _ _ _ _
TO: 600
SIGNAL: mA FROM: 4 TO: 20
ESC -- ANALOGUE -- 56 In1 UNITS: bar FROM: 5 0 _ _ _ _ _ _
TO: 600
SIGNAL: mA FROM: 4 TO: 20
ESC -- ANALOGUE -- 56 In1 UNITS: bar FROM: 5 5 _ _ _ _ _ _
TO: 600
SIGNAL: mA FROM: 4 TO: 20
ESC -- ANALOGUE -- 56 In1 UNITS: bar FROM: 5 5 _ _ _ _ _ _
TO: 600
SIGNAL: mA FROM: 4 TO: 20
ESC -- ANALOGUE -- 56 In1 UNITS: bar FROM: 55
TO: 600
SIGNAL: mA FROM: 4 TO: 20
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3.1.6 Text input
For functions like auxiliary sensors (chapter 4.1), data recording (chapter 5.3) and user ID (see chapter 6.3.3), text input is mandatory.
After selecting a text line, the menu “TEXT” is displayed.
New text is shown on the bottom line next to „TEXT“ as it is entered. New character’s can be selected by pressing the „arrow“ keys. By holding down the arrow key the cursor moves faster through the text input field. „START / ENTER“ confirms the selected character and highlights the next character. „_“ represents a space. The text input can be completed by pressing „STOP / ESC“. The text displayed under the heading TEXT is stored and then the display returns to the previous active menu.
select new character
confirm new character
select next character
-- TEXT -- 56
AaBbCcDdEeFfGgHhIiJj KkLlMmNnOoPpQqRrSsTt UuVvWwXxYyZz%/_
0123456789.-+ STORE = STOP/ESC 15 CHARS MAX TEXT: MASCH3
-- TEXT -- 56 AaBbCcDdEeFfGgHhIiJj KkLlMmNnOoPpQqRrSsTt UuVvWwXxYyZz%/_
0123456789.-+ STORE = STOP/ESC 15 CHARS MAX TEXT: MASCH3 _ _ _
-- TEXT -- 56 AaBbCcDdEeFfGgHhIiJj KkLlMmNnOoPpQqRrSsTt UuVvWwXxYyZz%/_
0123456789.-+ STORE = STOP/ESC 15 CHARS MAX TEXT: MASCH3 _ _ _
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confirm character
terminate text input and store text
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3.2 Measurement and display
The following chapters describe the different presentation of measured values.
3.2.1 Display of measured values (ACT – MIN - MAX)
The measured values in the display can be shown as ACT (actual), MIN (minimum) and MAX (maximum) values. There are several display options. The basic configuration shows the ACT values.
When pressing “MIN/MAX ACTUAL / RESET“ the following values are shown:
This display shows the ACT value and the MIN value.
The following display shows the ACT and MAX value.
In - ACT 56
1 223,6 bar
2 212,5 bar 3 77.5 U/min 4 200 U/min 5 420 l/min 6 448 bar P 53.4 kW
In - ACT MIN 56
1 223,6 10 bar
2 212,5 27 bar 3 77.5 0 U/min 4 200 2 U/min 5 420 410 l/min 6 448 300 bar P 53.4 kW
In - ACT MAX 56
1 223,6 320 bar
2 212,5 220 bar 3 77.5 80,0 U/min 4 200 400 U/min 5 420 420 l/min 6 448 555 bar P 53.4 kW
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The next display shows the MIN and MAX value.
By pressing „MIN/MAX ACTUAL / RESET“ once again all actual values of channel 1 are shown. Using the „arrow“ keys shows the values of the sensors.
select different sensor
By pressing „STOP / ESC“ all channels can be shown on the display again.
The display of all actual measured values from one sensor can be obtained by selecting the corresponding input with “ENTER“.
select Sensor / Input I2
In - MIN MAX 56
1 10 320 bar
2 27 220 bar 3 0 80,0 U/min 4 2 400 U/min 5 410 420 l/min 6 300 555 bar P kW
I1 56
345,6 bar
Min=131 Max=434 T=55°C
I3 56
162,6 bar
Min=145 Max=201 T=63°C
In - ACT 56 1 223,6 bar
2 212,5 bar
3 77.5 U/min 4 200 U/min 5 420 l/min 6 448 bar P 53.4 kW
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confirm sensor / input I2
The values of the other sensors are shown by using the “arrow“ keys.
By pressing “STOP / ESC“ the values of all sensors return on the display.
back to previous display
I2 56
212,5 bar
Min=131 Max=434 T=55°C
In - ACT 56 1 223,6 bar
2 212,5 bar
3 77.5 U/min 4 200 U/min 5 420 l/min 6 448 bar P 53.4 kW
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3.2.2 Deleting MIN / MAX memory
To delete the MIN and MAX values, „MIN/MAX ACTUAL / RESET“ has to be pressed for more than 4 seconds.
delete MIN /MAX values and return to previous display
or
return to previous display without deleting MIN / MAX values
3.2.3 Temperature
Some sensors measure temperature in addition to their primary function. To read temperature of all sensors / inputs press and hold „TEMP“ key.
press and hold „TEMP“-key
By releasing the „TEMP“-key the instrument will return to the previous display.
ESC – MIN – MAX RESET 56
MAN-MAX VALUE RESET ?
ENTER = YES ESC = NO
-- TEMPERATURE -­I1 22 °C I2 55 °C I3 99 °C I4 --- °C I5 --- °C I6 --- °C
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3.2.4 Differential values
In order to calculate the differential value between channel 1 and channel 2 press „I1-I2 / I1=I2“. The result of the calculation (=I1-I2) can be found as „“ in input 2, line 2 on the
display.
Attention!! Both channels must have the same measurement range
display and calculation of I1-I2
Pressing „I1-I2 / I1=I2“ again leads to display of channel 2.
return to display of channel 2
If the sensors are not compatible there is a message on the display:
In - ACT MIN 56
1 223,6 10 bar
Δ 11.1 17 bar 3 77.5 0 U/min 4 200 2 U/min 5 420 410 l/min 6 448 300 bar P 53.4 kW
In - ACT MIN 56 1 223,6 10 bar
2 212,5 27 bar
3 77.5 0 U/min 4 200 2 U/min 5 420 410 l/min 6 448 300 bar P 53.4 kW
SENSORS INCOMPATIBLE
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3.2.5 Alignment of I1 and I2
Holding „I1-I2 / I1=I2“ for more than 4 seconds leads to alignment of channel 1 and channel
2. Channel 2 (I2) takes the actual measured value of channel 1 (I1) I2=I1. If the measured value of channel 2 is changing, the difference „“ to channel 1 is measured. This function is like the tare-function of a scale.
alignment (press approx. 4 seconds)
carry out alignment, measured “ -values of the second sensor are 0
stop alignment
If the sensors are not compatible there is a message on the display:
In - ACT MIN 56 1 223,6 10 bar Δ 0 0 bar 3 77.5 0 U/min 4 200 2 U/min 5 420 410 l/min 6 448 300 bar P 53.4 kW
-- ALIGNMENT -- 56 I2 = I1 ?
ALIGHM.VALUE: 9,2 bar
ENTER = YES ESC = NO
SENSORS INCOMPATIBLE
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3.2.6 Optional channel (combination)
The optional channel allows the calculation of volume (V in [litre]) and power (P in [kW]), which is shown in line 8 of the display.
optional channel
Pressing “SETUP OPTION“ can do the setting for the optional setting channel.
press SETUP / OPTION“
s
elect menu item
„COMBINATION“
confirm menu item „COMBINATION“
In - ACT 56 1 223,6 bar
2 212,5 bar
3 77.5 U/min 4 200 U/min 5 420 l/min 6 448 bar P 53.4 kW
ESC -- SETUP -- 56
CONTRAST (%) 50
AUX. SENSOR> COMBINATION > RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
ESC -- SETUP -- 56 CONTRAST (%) 50 AUX. SENSOR>
COMBINATION >
RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
ESC - COMBINATION - 56 DISPLAY: VOLUME (L)
FORMULA: VOLUME(L)=t* I3 P(kW)= (I1-I2)* I3
P(kW)= I1* I2
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Calculation options are as follows.
1. Run-out volume based on time * flow:
V = Time [s] * Q [l/min]
Input Channel for Q: Ix Configuration optional line: V = t * Ix (Ix = I1 to I6)
2. Power:
a) Hydraulic power based on differential pressure * flow:
P (kW) = ΔP [bar]* Q [l/min] / 600 [s] P = ΔP * Q
P = (I1-I2) * Ix (Ix = I3 to I6)
b) Hydraulic power based on pressure * flow:
P (kW) = P [bar]* Q [l/min] / 600 [s] P = P * Q
P = I1 * Ix (Ix = I2 to I6)
Calculated and output values are set by pressing “DISPLAY” (VOLUME, P(kW)=(I1-I2)*Ix, P(kW)=I1*I2, NO).
select menu item „DISPLAY“
confirm menu item „DISPLAY“
ESC - COMBINATION - 56
DISPLAY: NO
FORMULA: VOLUME(L)=t* I3 P(kW)= (I1-I2)* I3
P(kW)= I1* I2
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press arrow“ key until desired display is selected.
confirm change
To select the channel number for the volume formula highlight “VOLUME(I)=t*”.
select menu item „VOLUME(I)=t*“
confirm menu item „VOLUME(I)=t*“
Press arrow“ key to select desired channel (I1, I2, I3, I4, I5, I6)
confirm change
!!! The time (t) is running continuously in the background and is set to zero in the display by pressing "RESET"!!
ESC - COMBINATION - 56
DISPLAY: VOLUME (L)
FORMULA: VOLUMEN(L)=t* I3 P(kW)= (I1-I2)* I3
P(kW)= I1* I2
ESC - COMBINATION - 56 DISPLAY: VOLUME (L)
FORMULA: VOLUMEN(L)=t* I3 P(kW)= (I1-I2)* I3
P(kW)= I1* I2
ESC - COMBINATION - 56 DISPLAY: VOLUME (L)
FORMULA: VOLUMEN(L)=t* I4 P(kW)= (I1-I2)* I3
P(kW)= I1* I2
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The channel number for the power equation is selected by highlighting “P(kW)=(I1-I2)*”.
select menu item „P(kW)=(I1-I2)*“
confirm menu item „P(kW)=(I1-I2)*“, assign measurement channel and confirm once again
The channel number for the power equation is selected by highlighting “P(kW)=I1*”.
select menu item „P(kW)=I1*“
confirm menu item „P(kW)=I1*“, assign measurement channel and confirm once again
The data of the optional line is not
transferred to the online and memory mode, respectively.
If display and sensors do not correspond, there is a message on the display:
ESC - COMBINATION - 56 DISPLAY: VOLUME (L)
FORMULA: VOLUMEN(L)=t* I3 P(kW)= (I1-I2)* I3
P(kW)= I1* I2
ESC - COMBINATION - 56 DISPLAY: VOLUME (L)
FORMULA: VOLUMEN(L)=t* I3 P(kW)= (I1-I2)* I3
P(kW)= I1* I2
SENSORS INCOMPATIBLE
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3.3 Data output
The PPC-06/08/12 can transfer the measured values to a PC or printer via interface RS 232. There are two data output possibilities:
1. Online output
2. Memory output
With the online output the actual measured values are transferred directly to the connected instrument. The measured values will be printed numerically in a table.
With the memory output the saved data can be transferred to the PC or printer. The measured values will be printed as a graph (curve).
If the PPC-06/08/12 is connected with a PC in conjunction with PPC-Soft (chapter 7) it is possible to display the data in the desired format. Numerical line-by-line as well as graphical format is possible with both output possibilities: online and memory output.
The following examples describe the sequence and settings when using online output.
The description of memory output can be found in the chapter 5.4.
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3.3.1 Online function
Transfer of the actual measured values to a printer or a PC is carried out with the online function. During online measurement MIN and MAX values and the ACT value are transferred within a measurement interval (IST1 to IST2). This guarantees the transfer of all information during the printing of a measurement interval.
Recorded measured values at online measurement
ACT 1 MIN 1 MAX 1 Interval 1 ACT 2 MIN 2 MAX 2 Interval 2 … … … …
The data is numerically presented as a table when using a printer. Graphic presentation is possible when using PPC-Soft software (chapter 7).
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3.3.2 Online function with PC / Laptop
For a correct data transfer, the baud rate for the PC to the PPC has to be adapted. (chapter
6.1). This adaptation can be done with an interface test when using PPC-Soft software (chapter 7.2).
When pressing „DATA OUTPUT“ the online output will be activated. The menu „DATA OUT“ is displayed.
press DATA OUTPUT“
“DATA FROM” shows the data source (MEMORY = measured value memory or ONLINE = actual measured value).
select menu item “DATA FROM”
confirm menu item “DATA FROM”
select function value “ONLINE”
ESC -- DATA OUT -- 56
DATA FROM: MEMORY
OUTPUT TO: Thermo MEASUREMENT: 12 In> 1 2 DISPL.TYPE MIN-MAX FORMAT: NORMAL START>
ESC -- DATA OUT -- 56
DATA FROM: MEMORY
OUTPUT TO: Thermo MEASUREMENT: 12 In> 1 2 DISPL.TYPE MIN-MAX FORMAT: NORMAL START>
ESC -- DATA OUT -- 56 DATA FROM: ONLINE OUTPUT TO: Thermo MEASUREMENT: 12 In> 1 2 DISPL.TYPE MIN-MAX FORMAT: NORMAL START>
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confirm change
“OUTPUT TO” selects the output instrument.
select menu item „OUTPUT TO“
confirm menu item „OUTPUT TO“
select function value PC
confirm change
ESC -- DATA OUT -- 56 DATA FROM: ONLINE
OUTPUT TO: Thermo
TRANSFER:RATE: 5 PRINT/PC START>
ESC -- DATA OUT -- 56 DATA FROM: ONLINE OUTPUT TO: PC TRANSFER:RATE: 5 PRINT/PC START>
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„TRANSF.RATE” defines how often the measured values are transferred.
Example: „TRANSF.RATE“ = 5 Æ the values are transferred every 5 seconds
up to 3 channels Æ every 1 to 3600 seconds more than 4 channels Æ every 2 to 3600 seconds
select menu item „TRANSF.RATE“
confirm menu item „TRANSF.RATE“
select function value (1 to 3600 seconds)
confirm change
“PRINT/PC” starts online output.
select menu item “PRINT/PC”
ESC -- DATA OUT -- 56 DATA FROM: ONLINE OUTPUT TO: PC
TRANSFER:RATE: 5
PRINT/PC START>
ESC -- DATA OUT -- 56 DATA FROM: ONLINE OUTPUT TO: PC TRANSFER:RATE: 10 PRINT/PC START>
ESC -- DATA OUT -- 56 DATA FROM: ONLINE OUTPUT TO: PC TRANSFER:RATE: 10
PRINT/PC START>
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start transfer
During the transfer a „P“ is blinking in the upper right corner of the display.
The online output can be terminated by pressing „STOP / ESC“.
In - ACT MIN 56P 1 223,6 10 bar 2 212,5 27 bar 3 77.5 0 U/min 4 200 2 U/min 5 420 410 l/min 6 448 300 bar P 53.4 0 kW
FOR DATA TRANFER READY
CANCEL = STOP
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4 Auxiliary sensors / current - voltage measurement
The PPC-06/08/12 can be used with auxiliary sensors. For this, the current / voltage module PPC 06/12-AUX-A adapter is required. Sensors generally have an outgoing signal like voltage or current value. These must be adjusted to the PPC-06/08/12. Due to the galvanic disconnection, the PPC-06/08/12 allows measurements from 0/4 to 20 mA and 0 to 10 V DC. The scaling of the output signal should be taken into consideration.
Measurement range (Unit:)
Unit Signal
(SIGNAL:)
Unit
Example
FROM: 0 TO: 250 bar FROM: 0 TO: 20 mA FROM: 0 TO: 500 N FROM: 4 TO: 20 mA FROM: 0 TO: 200 kg FROM: 0 TO: 10 V Current
FROM: 0 TO: 20 mA FROM: 0 TO: 20 mA Voltage
FROM: 0 TO: 10 V FROM: 0 TO: 10 V
After correct configuration the auxiliary sensors (see chapter Fehler! Verweisquelle konnte nicht gefunden werden.) work like Stauff sensors. The sensor identification is valid for the corresponding input channel.
For starting auxiliary triggered measurement recording, the trigger module PPC-06/12-TR-A adapter has to be used.
The trigger module starts the measurement recording via a make- and break- device with a floating contact, that is connected to the trigger module.
!!! Attention: Use only floating contacts !! (for example relay contacts) If not, the PPC can be destroyed !!
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4.1 Configuration of auxiliary sensors
By pressing „SETUP / OPTION“ the settings for the configuration of auxiliary sensors can be achieved.
press „SETUP / OPTION“
select menu item „AUX. SENSOR“
confirm menu item „AUX. SENSOR“
select menu item „ANALOGUE“
confirm menu item “ANALOGUE“
ESC -- SETUP -- 56
CONTRAST (%) 50
AUX. SENSOR> COMBINATION > RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
ESC -- SETUP -- 56 CONTRAST (%) 50
AUX. SENSOR>
COMBINATION > RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
ESC -- INPUT -- 56
ANALOGUE> I1
FREQUENCY >
ESC -- INPUT -- 56 ANALOGUE> I1 FREQUENCY>
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select channel (I1, I2, I3, I4, I5, I6)
confirm channel
By pressing the arrow keys, the menu item is chosen and with „START / ENTER“ it is confirmed.
For Number or Text input see number input (chapter 3.1.6) respectively text input (chapter
3.1.6).
The configuration of the auxiliary sensors is accomplished by modifying the „FROM“ and „TO“ values under the „UNIT“ and „SIGNAL“ headers.
Example:
If the auxiliary sensor produces a 4 to 20 ma output signal then under the „SIGNAL“ header „FROM“ is selected and set to 4, „TO“ is set to 20; If the pressure range to work within is 0 to 500 bar then under the „UNITS“ header, „FROM“ is set to 0 and „TO“ is set to 500. The tester input is now scaled to provide a 0 to 500 bar reading based on a 4 to 20 ma signal from the auxiliary sensor.
„UNITS:“ describes the UNIT of the displayed data „UNITS FROM:“ represents the minimum measured value (smallest accepted value : -99,999). „UNITS TO:“ defines the maximum measured value (largest accepted value : 999,999) “SIGNAL:” describes the unit of measured value given by the sensor. „SIGNAL FROM:“ defines the minimum measured value (smallest accepted value : -20 mA or –10 V). „SIGNAL TO:“ defines the maximum measured value (biggest accepted value : +20 mA or +10 V).
ESC -- INPUT -- 56 ANALOGUE> I2 FREQUENCY>
ESC -- ANALOGUE -- 56 In2 UNITS: bar FROM: 55
TO: 600
SIGNAL: mA FROM: 4 TO: 20
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4.2 Frequency measurement
The rotational speed (n) [U/min] or the flow rate (Q) [l/min] can be measured by modifying the „FREQUENCY“ settings under the „AUX SENSOR“ setup option. The following instructions describe the procedure:
!!!!Attention: The frequency measurement is limited to channel 3!!
To calculate the correct rotational speed or the flow rate, the following values have to be specified.
Rotational speed: Details about impulses per revolution (PULS./REV) and maximal rotational speed (RPM max) Flow rate: Details about K-factors, Impulse / Litre (CALIBR.:) and maximum flow rate (Q max)
By pressing “SETUP” the frequency settings can be adjusted.
press „SETUP / OPTION“
select menu item „AUX. SENSOR“
confirm menu item „AUX. SENSOR“
Select menu item „FREQUENCY“
ESC -- SETUP -- 56
CONTRAST (%) 50
AUX. SENSOR> COMBINATION > RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
ESC -- SETUP -- 56 CONTRAST (%) 50
AUX. SENSOR>
COMBINATION > RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
ESC -- INPUT -- 56 ANALOGUE> I2
FREQUENCY>
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Confirm menu item „FREQUENCY“
Choose menu item „QUANTITY“ for selection of rotational speed or flow rate, respectively.
Inputs required for „Rotation Speed (n)“
„PULS/REV:“ input for Impulse / rotation (eg. # of teeth/revolution). „RPM MAX:“ maximum speed range (eg. # of revs/min).
The number input is described in chapter (3.1.5) (accepted range: 1 to 999).
If “PULS/REV” * “RPM MAX” is exceeding 30,000 * 60, the error
message „VALUES TOO BIG“ is displayed.
Inputs required for „FLOW (Q)“
The first step is the input of the CALIBR.-factor and the maximum flow rate, “Q MAX”. When using Stauff flow turbines, the given calibration-factor has to be used. For different flow-turbines the CALIBR.-factor has to be calculated as follows:
I = Impulse / Litre (eg. 1000 pulses/litre for new turbine) CALIBR
.(1000 Hz)
=60.000 / I ( Therefore, 60,000/1000 = 60; Enter 60 on “CALIBR” line)
“Q-MAX” is identified on the turbine; Must be litre/min.
The number input is described in chapter (3.1.5) (accepted range: 1 to 999).
ESC - FREQUENCY - 56
In3
QUANTITY: ROTAT.SPD PULS/REV: 123 RPM MAX: 3000
ESC - FREQUENCY - 56 In3 QUANTITY: ROTAT.SPD PULS/REV: 123 RPM MAX: 3000
ESC - FREQUENCY - 56 In3 QUANTITY: FLOW CALIBR.: 123 Q MAX: 3000
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5 Additional features of the PPC-06/08/12
The PPC-06/08/12 records and stores measured values (curves). The recorded data sets can be transferred to the PC (with PPC-Soft software (chapter 7 ).
For measurement recording and storing the user has two choices:
Manual recording and saving (“START/STOP”)
The manual recording is activated and stopped with “START/STOP” (see chapter 5.2).
Software-driven recording and saving
With the software-driven recording, the PPC-06/08/12 controls the documentation of the data sets. Before starting the measurement, the user has to initialise the set up and measurement time (see chapter 5.3 ).
“RECORD” is pressed to start the recording. The menu RECORD is displayed.
press „RECORD“
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
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1
2 3 4 5 6 7 8 9
1. Menu line
2. „MEAS:“ shows the number of the latest stored measurement.
3.
“PRGM” shows the actual (record-) status of the measurement memory:
“PRGM” → Measurement memory will be programmed “FULL” Measurement memory is full
4. „MEM.AVAIL.=“
shows the remaining memory in %.
5. „TEXT“ can enter a name for every input (channel).
6. „START/STOP->“
prepares the manual recording
7. “PRGM.REC>” defines the initial setting and the measurement time as well as the type of software-driven recording.
8. “RECORD->” starts the software-driven recording.
9. “CLR. MEM:” deletes single or all recorded measurements.
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
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5.1 Memory capability
Dynamic memory capability of the PPC-06/08/12
The dynamic memory capability of the MIN / MAX values allows the user to choose a memory rate of 1,000, 2,000 and 4,000 values/channel. The MIN / MAX values for every storage interval is constantly recorded. Therefore, the recording of all printed points is guaranteed. That means, for every memory interval 1 MIN value, 1 MAX value and the average value for every channel is recorded.
The period of one memory interval is dependent on the measurement time and measurement points. The memory rate is constant during each single measurement.
pointst Measuremen
t timeMeasuremen
intervalMemory =
The memory capability setting is described in chapter (6.3.2)
For more information about the memory management please have a look to the technical appendix at the end of these Operating Instruction.
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Calculation example:
I = Memory interval
MP = Measurement points/channel = 4,000 values/channel
t = Measurement time = 20 min conversion to ms: 20 min = 20 * 60 * 1000 ms = 1,200,000 ms
300ms
4,000
1,200,000
MP
t
I ===
In this example, the period of the memory interval is 300 ms. That means, that every 300 ms one value per channels is recorded.
Calculation of the maximum measurement numbers
To calculate the maximum measurement numbers, you have to know the maximum number of storage points:
PPC-06 60,000 points MIN and MAX measurement points
PPC-08 125,000 points MIN and MAX measurement points
PPC-12 250,000 points MIN and MAX measurement points
Calculation example :
Number of points= 250,000 MIN and MAX measurement points
Memory rate = 2,000 MIN and MAX measurement points /channel
n = Number of measurements
channels * nnelpoints/cha meas. MAX and MIN 2,000
points 250.000
channels ofnumber * ratememory
points meas. MAX and MIN ofnumber
n ==
The maximum number of measurements is 240, when using a single channel and 1,000 MIN and MAX measurement points.
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5.2 Manual recording of measured values
The user starts and stops the manual recording of measured values with the “START” and “STOP” -key.
To choose the manual recording options press „RECORD“. On the display the menu „RECORD“ is shown.
press „RECORD“
Names (with a maximum of 15 characters) for the measurement and channels can be provided by the menu item „TEXT“.
Further text input is described in chapter 3.1.6
select „START/STOP“ and start the manual recording mode with „START / ENTER“
“STOP / ESC“ stops the manual recording mode. On the display the menu “RECORD” is shown.
With “MIN/MAX ACTUAL / RESET” the different presentations of the measured values can be chosen on the display.
By pressing “I1-I2 / I1=I2”, the difference between I1 and I2 is shown in the second line of the display. The calculated value is recorded as measurement value I2.
Pressing “START / ENTER” and “RECORD”, respectively, starts the recording.
start recording
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
MEAS:4 RECORD>START
1 223,6 10 bar 2 212,5 27 bar 3 77.5 0 U/min 4 448 300 bar
MEAS:4 RECORD
1 223,6 10 bar 2 212,5 27 bar 3 77.5 0 U/min 4 448 300 bar
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Press “STOP / ESC” to stop the recording.
Stop recording
At this point, the user has to decide whether the measurement will be stored by the PPC 06/08/12. After saving, the display returns to the menu “RECORD”. Now, you can register further measurements. By pressing “STOP / ESC” you can exit the menu “RECORD” and the actual measurement values are shown.
RECORD END MEAS: 4 SAVE?
ENTER = YES ESC = NO
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5.3 Software-driven recording of measured values
By software-driven recording and storing of measured values four different settings can be chosen:
The following are the four recording options available.
1. Edge-triggered recording (increase/decrease) (chapter 5.3.1)
2.
Externally triggered recording (chapter 5.3.2)
3. Manually triggered recording (chapter 5.3.3)
4. Time triggered recording (chapter 5.3.4)
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5.3.1 Edge-triggered recording
The edge-triggered recording is initiated by rising above or falling below a programmed threshold.
Scheme for edge-triggered recording:
t
g
Æ recording time
t
s
Æ storage time
t
p
Æ pre-trigger time
L Æ threshold
The storage time t
g
defines the total recording time. tg = ts + t
p
In the storage time t
s
the measured values will be recorded. The storage time is set by the
user before recording (“DURATION”).
The pre-trigger time tp is the storage time before the measurement is initiated.
By passing (rise, fall) the threshold L the recording is initiated (see diagram rising). The signal curve before
crossing the threshold L will be recorded by the pre-trigger.
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This example shows the edge-triggered pressure- /flow- measurement. Input I1 measures the pressure, input I3 measures the flow. By automatic triggering the measurement of input I1 will be started. In this example the initiating flank is increasing, the threshold is 50 bar and the measured values are recorded for 10 seconds.
By pressing “RECORD” the menu “RECORD” is shown on the display.
press “RECORD”
Names (with a maximum of 15 characters) for the measurements can be given by the menu item „TEXT“.
The further text input is described in chapter 3.1.6.
The start / stop parameters of the automatic measurement are set up under the menu item “PRGRM.REC>”.
select menu item “PRGRM.REC>”
confirm menu item “PRGRM.REC>”
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 % TEXT> Kreis1 START/STOP->
PRGRM.REC>
RECORD-> CLR. MEM: ALL
ESC - PRGM REC -- 56
START REC AUTO
DURATION 10 s PRE-TRIGGER 0.5 s START In: I1 LEVEL: 50 bar STARTSLOPE: FALLING AUTO READY NO
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„START REC“ defines the start parameter. When using the edge-triggered recording
mode, the function value has to be set to “AUTO”.
„DURATION“ defines the recording time inclusive of trigger-time
„PRE-TRIGGER“ defines the storage time before
the measurement is initiated.
„START In>“ choose the measurement channel, which initiates the storage when the
defined settings are met (trigger channel).
„LEVEL:“ defines the threshold value. When reaching the threshold the recording
will be initiated.
„STARTSLOPE:“ determines whether the measured value recording is initiated during
increase or decrease of values.
„AUTO READY“ If “AUTO READY” is switched on “YES”, recording is repeated
automatically. When all
start criteria are compiled, the recording starts again. The measurement will not continue when memory is full or if STOP / ESC is used.
“STOP / ESC” finishes the setting and exits the menu.
return to menu „RECORD“
menu „RECORD->“ starts the recording mode.
ESC - PRGM REC -- 56
START REC AUTO
DURATION 10 s PRE-TRIGGER 0.5 s START In: I1 LEVEL: 50 bar STARTSLOPE: FALLING AUTO READY NO
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
MEAS:3 READY>START 1 223.6 10 bar 2 bar 3 77.5 0 U/min
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„STOP / ESC“ stops the recording mode. Then the menu „RECORD“ is displayed.
Pressing „START / ENTER“ and „RECORD“, respectively, starts the recording.
start recording
The measurement instrument is in the stand-by mode. The instrument starts the recording when all
previously programmed settings are met.
By pressing the “STOP / ESC“ -key the measurement can be stopped prematurely. Nevertheless, the recorded measured values can be saved. If the measurement is terminated after the measurement time has expired with the menu item “AUTO READY” switched off, the same menu is displayed.
stop current measurement
select function value (YES,NO).
the menu “RECORD” is displayed“
If “AUTO READY” is switched on, recording is repeated automatically. When all start conditions are met the recording starts again. The measurement will be concluded when memory is full or if “STOP / ESC” is used.
MEAS:3 READY 1 223.6 10 bar 2 bar 3 77.5 0 U/min
RECORD END MEAS: 4 SAVE?
ENTER = YES ESC = NO
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
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5.3.2 Externally triggered recording
The trigger adapter PPC-06/12-TR-A is needed for the externally triggered recording. Please note that the electrical connection is a floating output type, for example by connecting to a relay or a galvanic separated element.
Please pay attention to the PPC-06/12-TR-A adapter instructions.
The externally triggered recording will be started after an external signal (for example by opening or closing of a valve).
Scheme for externally triggered recording
ext. ext.
signal signal
t
g
Æ recording time
t
s
Æ storage time
t
p
Æ pre-trigger time
The storage time t
g
defines the total recording time. tg = ts + t
p
In the storage time t
s
the measured values will be recorded. The storage time is set by the
user before recording (“DURATION”).
The pre-trigger time tp is the storage time before the measurement is initiated.
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This example describes an externally triggered differential pressure measurement. The pressure is measured on input I1 and I2 , before and after the valve. The measurement is initiated by an external signal (open valve). For 10 seconds the measured values will be recorded.
By pressing “RECORD” the menu “RECORD” is shown on the display.
press „RECORD“
Names (with a maximum of 15 characters) for the measurements can be given by the menu item „TEXT“.
The further text input is described in chapter 3.1.6.
The start / stop parameters of the automatic measurement are set up under the menu item “PRGRM.REC>”.
select menu item “PRGRM.REC>”
confirm menu item “PRGRM.REC>”
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 % TEXT> Kreis1 START/STOP->
PRGRM.REC>
RECORD-> CLR. MEM: ALL
ESC - PRGM REC -- 56
START REC AUTO
DURATION 10 s PRE-TRIGGER 0.5 s START In: I1 LEVEL: 50 bar STARTSLOPE: FALLING AUTO READY NO
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select menu item „START REC“ and select function value „EXTERN“
„START REC“
selects the memory procedure. For the external initiated recording the function value “EXTERN” has to be chosen.
„DURATION“ defines the recording time inclusive of the trigger-time
„PRE-TRIGGER“ defines the storage time before
the measurement is initiated.
„STARTSLOPE:“ defines whether the recording is initiated by opening or closing valve.
„AUTO READY“ If “AUTO READY” is switched on “YES”, recording is repeated
automatically. When all
start criteria are complied, the recording starts again. The measurement will not continue when memory is full or if STOP / ESC is used.
“STOP / ESC” finishes the setting and exits the menu.
return to menu „RECORD“
menu „RECORD->“ starts the recording mode.
ESC - PRGM REC -- 56 START REC EXTERN DURATION 10 s PRE-TRIGGER 0.5 s STARTSLOPE: CLOSE AUTO READY NO
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
MEAS:3 READY>START 1 223.6 10 bar 2 bar 3 77.5 0 U/min
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„STOP / ESC“ stops the recording mode. Then the menu „RECORD“ is displayed.
Pressing „START / ENTER“ and „RECORD“, respectively, starts the recording.
start recording
The measurement instrument is in the stand-by mode. The instrument starts the recording when all
previously programmed settings (external signal Æ valve opens) are met.
By pressing the “STOP / ESC“ -key the measurement can be stopped prematurely. Nevertheless, the recorded measured values can be saved. If the measurement is terminated after the measurement time has expired with the menu item “AUTO READY” switched off, the same menu is displayed.
stop current measurement
select function value (YES,NO).
the menu “RECORD” is displayed“
If “AUTO READY” is switched on, recording is repeated automatically. When all start conditions are met the recording starts again. The measurement will be concluded when memory is full or if “STOP / ESC” is used.
MEAS:3 READY 1 223.6 10 bar 2 bar 3 77.5 0 U/min
RECORD END MEAS: 4 SAVE?
ENTER = YES ESC = NO
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
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5.3.3 Manually triggered recording
Manually triggered and time controlled recording is initiated by pressing “START”.
Scheme for manually triggered and time controlled recording:
Start Start
t
g
Æ recording time
t
s
Æ storage time
t
p
Æ pre-trigger time
The storage time t
g
defines the total recording time. tg = ts + t
p
In the storage time t
s
the measured values will be recorded. The storage time is set by the
user before recording (“DURATION”).
The pre-trigger time t
p
is the storage time before the measurement is initiated. The signal
curve before pressing “START” will be recorded by the pre-trigger.
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This example describes a manual and time controlled recording. The user starts the measurement with “START / ENTER”. After 10 seconds the measurement will be stopped automatically.
By pressing “RECORD” the menu “RECORD” is shown on the display.
press „RECORD“
Names (with a maximum of 15 characters) for the measurements can be given by the menu item „TEXT“.
The further text input is described in chapter 3.1.6.
The start / stop parameters of the automatic measurement are set up under the menu item “PRGRM.REC>”.
select menu item “PRGRM.REC>”
confirm menu item “PRGRM.REC>”
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 % TEXT> Kreis1 START/STOP->
PRGRM.REC>
RECORD-> CLR. MEM: ALL
ESC - PRGM REC -- 56
START REC AUTO
DURATION 10 s PRE-TRIGGER 0.5 s START In: I1 LEVEL: 50 bar STARTSLOPE: FALLING AUTO READY NO
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select menu item „START REC“ and select function value „MANU“
„START REC“ selects the memory procedure. For the manually triggered and time
controlled recording the function value “MANU” has to be chosen.
„DURATION“ defines the recording time inclusive of the trigger-time
„PRE-TRIGGER“ defines the storage time before
the measurement is initiated.
“STOP / ESC” finishes the setting and exits the menu.
return to menu „RECORD“
menu „RECORD->“ starts the recording mode.
ESC - PRGM REC -- 56 START REC MANU DURATION 10 s PRE-TRIGGER 0.5 s
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
MEAS:3 READY>START 1 223.6 10 bar 2 bar 3 77.5 0 U/min
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„STOP / ESC“ stops the recording mode. Then the menu „RECORD“ is displayed.
Pressing „START / ENTER“ and „RECORD“, respectively, starts the recording.
start recording
The measurement instrument is in the stand-by mode. After pressing “START / ENTER“ once again the measured values will be recorded.
By pressing the “STOP / ESC“ -key the measurement can be stopped prematurely. Nevertheless, the recorded measured values can be saved. If the measurement is terminated after the measurement time has expired with the menu item “AUTO READY” switched off, the same menu is displayed.
stop current measurement
select function value (YES,NO).
the menu “RECORD” is displayed“
MEAS:3 READY 1 223.6 10 bar 2 bar 3 77.5 0 U/min
RECORD END MEAS: 4 SAVE?
ENTER = YES ESC = NO
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
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5.3.4 Time triggered recording
The time controlled recording is initiated and stopped by a timer.
Scheme for time recording
Progr. Progr.
time time
t
g
Æ recording time
t
s
Æ storage time
t
p
Æ pre-trigger time
The storage time t
g
defines the total recording time. tg = ts + t
p
In the storage time t
s
the measured values will be recorded. The storage time is set by the
user before recording (“DURATION”).
The pre-trigger time t
p
is the storage time before the measurement is initiated. The signal
curve prior to the timer signal will be recorded by the pre-trigger.
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This example shows a time triggered recording. The recording starts when the timer reaches the user given starting hour (16:00). After 10 seconds the measurement will be stopped automatically.
After pressing “RECORD” the menu “RECORD” is displayed.
press „RECORD“
Names (with a maximum of 15 characters) for the measurements can be given by the menu item „TEXT“.
The further text input is described in chapter 3.1.6.
The start / stop parameters of the automatic measurement are set up under the menu item “PRGRM.REC>”.
select menu item “PRGRM.REC>”
confirm menu item “PRGRM.REC>”
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 % TEXT> Kreis1 START/STOP->
PRGRM.REC>
RECORD-> CLR. MEM: ALL
ESC - PRGM REC -- 56
START REC AUTO
DURATION 10 s PRE-TRIGGER 0.5 s START In: I1 LEVEL: 50 bar STARTSLOPE: FALLING AUTO READY NO
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select menu item „START REC“ and select function value „CLOCK“
„START REC“ selects the memory procedure. For the manually triggered and time
controlled recording the function value “MANU” has to be chosen.
„TIME“
sets the starting hour and minute for data recording.
„DURATION“ defines the recording period.
“STOP / ESC” finishes the setting and exits the menu.
return to menu „RECORD“
menu „RECORD->“ starts the recording mode.
ESC - PRGM REC -- 56 START REC CLOCK TIME> 16:00 s DURATION 10 s
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
MEAS:3 READY>START 1 223.6 10 bar 2 bar 3 77.5 0 U/min
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„STOP / ESC“ stops the recording mode. Then the menu „RECORD“ is displayed.
Pressing „START / ENTER“ and „RECORD“, respectively, starts the recording.
start recording
The measurement instrument is in the stand-by mode. After pressing “START / ENTER“ once again the measured values will be recorded.
By pressing the “STOP / ESC“ -key the measurement can be stopped prematurely. Nevertheless, the recorded measured values can be saved. If the measurement is terminated after the measurement time has expired with the menu item “AUTO READY” switched off, the same menu is displayed.
stop current measurement
select function value (YES,NO).
the menu “RECORD” is displayed“
MEAS:3 READY 1 223.6 10 bar 2 bar 3 77.5 0 U/min
RECORD END MEAS: 4 SAVE?
ENTER = YES ESC = NO
ESC -- RECORD -- 56 MEAS: 3 PRGM MEM.AVAIL.= 38 %
TEXT> Kreis1
START/STOP-> PRGRM.REC> RECORD-> CLR. MEM: ALL
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5.4 Memory output
The following chapters describe the possible memory output of the measurement values.
There are three kinds of memory outputs:
1. DIN A4 printer
2. on display (curve)
3. on the PC / Laptop
For a correct data transfer the baud rate for the PC to the PPC-06/08/12 has to be adjusted (see chapter 6.1). This adjustment can be done by an RS 232 interface test (see chapter
6.1.1) when using PPC-Soft (chapter 7.).
When pressing “DATA OUTPUT” the memory output will be activated. The menu “DATA OUT” is displayed..
press „DATA OUTPUT”
„DATA FROM:“ shows the data source (MEMORY = measured value memory or ONLINE = actual measured value).
„OUTPUT TO:“ selects the output instrument (Thermo, CanBJ85, HPDJ340, PC, DISPLAY)
„MEASUREMENT:“ selects the desired individual measurement from the memory
„In>“ defines the output channels:
DISPLAY 1 channel PC all channels are transferred
To change the number of channels, select menu item „In>“. The menu „CHOOSING INPUT“ is displayed.
ESC -- DATA OUT -- 56
DATA FROM: MEMORY
OUTPUT TO: Thermo MEASUREMENT: 12 In> 1 2 DISPL.TYPE MIN-MAX FORMAT: NORMAL START>
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select menu item „In>“ and confirm
select the output channels
stop selection
“DISPL.TYPE” selects the output of the curves. The function value MIN-MAX results in
MIN and MAX curves from every channel. The function value MEAN calculates the middle curve from the MIN and MAX curve and prints only this curve.
„FORMAT:“ selects the output format of the curves. With the function value ZOOM
the curves are enlarged 3 times on the x-axis (3 fold length of the printout).
„START>“ starts the data transfer.
After the data transfer the display shows the actual measured values.
In - CHOOSING INPUT -
1 *
2 3 4 5 6
In - CHOOSING INPUT ­1 * 2 *
3 *
4 5 6
ESC -- DATA OUT -- 56 DATA FROM: MEMORY OUTPUT TO: Thermo MEASUREMENT: 12
In> 1 2
DISPL.TYPE MIN-MAX FORMAT: NORMAL START>
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The following are some examples of memory outputs:
1. on display (curve)
before output is displayed, the parameters must be specified
only one Channel can be displayed
2. on the PC / Laptop
after starting the data output „DATATRANSFER“ is displayed
ESC GRAPHIC PARAM
GRAPH START>
MEASUREMENT: 5 IN: 3 START: 0 bar END: 600 bar TIME FROM: 0 s TIME TO: 2 s
E
A 0 4s
DATATRANSFER
PLEASE WAIT
CANCEL = STOP
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6 Configuration PPC-06/08/12
Instrument configuration can be changed by pressing “SETUP / OPTION”. The menu SETUP is shown on the display. It is possible to set and change contrast, auxiliary sensors (chapter 4), calculations in the optional line (chapter 3.2.6), recording-, instrument- and system settings, as well as rechargeable battery service.
press „SETUP / OPTION“
„CONTRAST (%)“ setup the display contrast (0-100, increments of 5)
„AUX. SENSOR>“ see chapter 4
„COMBINATION>“ see chapter 3.2.6
„RECORD SETUP>“ see chapter 5.2
„DEVICE SETUP>“ see chapter 6.1
„BATTERY SERVICE>“see chapter 6.2
„SYSTEM SETUP>“ see chapter 6.3
ESC -- SETUP -- 56
CONTRAST (%) 50
AUX. SENSOR> COMBINATION> RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
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6.1 Device Setup
Menu item „DEVICE SETUP“ defines the automatic instrument shut-off, language, units, time, output instrument for data output and the baud rate. In addition, a RS 232 interface test (chapter 6.1.1) is also possible.
select menu item
„DEVICE SETUP“
„AUTO shuts the instrument off automatically when it is not used. The PWR OFF“ function is active, when YES is selected as the function value.
„LANGUAGE:“ choose between the languages German, English and French
„UNITS>“ The following units can be chosen: PRESSURE= bar, PSI TEMPERATURE= °C, °F FLOW RATE= l/min , GPM ROTATIONAL SPEED= U/min, RPM
„SET CLOCK>“ set date and time
„OUTPUT TO:“ choose data output: PC (with PPC-Soft (chapter 7.), DISPLAY
„BAUD RATE>“ When using the PC and Windows based PC printer it is possible to
choose between the following baud rates:
1200, 2400, 4800, 9600, 19200, 38400 Baud.
ESC DEVICE SETUP - 56
AUTO PWR OFF JA
LANGUAGE: ENGLISH UNITS> SET CLOCK> OUTPUT TO: PC BAUD RATE> RS-232 TEST
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6.1.1 RS 232 interface test
With the RS 232-test, the PC is adapted to the baud rate of the PPC-06/08/12. The PC sends a signal with the smallest baud rate possible and increases it until the PPC recognises the signal and then acknowledges the receipt. This test can only be used in connection with PPC-Soft Software packet (chapter 7.).
select menu item
”RS-232 TEST”
start test
Interface test ended successfully
ESC -DIVICE SETUP - 56
AUTO PWR OFF JA
LANGUAGE: ENGLISH UNITS> SET CLOCK> OUTPUT TO:: PC BAUD RATE> RS-232 TEST
RS-232 TEST: RUNNING
RS-232 TEST: OK
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6.2 Battery Service
The function “BATT.SERVICE” manages the actual charge rate of the rechargeable battery. If the main power supply is connected, the rechargeable batteries will be recharged. The instrument shuts off automatically when rechargeable batteries are empty.
!!! If the Battery Service is running all keys are locked!!!
Note : When charging and recharging the NiCd cells very often, a memory effect can appear. The capacity of the rechargeable battery is decreasing dramatically and leads to shorter operating times. The full capacity can be restored by a complete discharging followed by charging the batteries.
press „SETUP / OPTION“
Select menu item „BATT. SERVICE“
„YES“ starts the battery service
If the battery capacity is low, the PPC-06/08/12 shows the message “BAT. SERVICE STATUS on the display when the instrument is switched on.
ESC -- SETUP -- 56
CONTRAST (%) 50
AUX. SENSOR> COMBINATION RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
ESC -BATT.SERVICE- 56
AUTO. BATTERY ON CHARGE: YES
DONT INTERRUPT!
STAUFF TEST
PPC-12 3778R9-10101
Ladezustand: <=50%
START BATTERY SERVICE
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6.3 System setup
With the menu “SYSTEM SETUP” you can reset your system, select the memory concept for the next measurement or set the user identification.
press „SETUP / OPTION“
Select menu item „SYSTEM SETUP“
„SYSTEM RESET“ sets PPC-06/08/12 to the default (chapter 6.3.1)
„CONCEPT“ sets memory functions (chapter 6.3.2)
„USER ID“ sets the user identification (company etc.) (chapter 6.3.3)
ESC -- SETUP -- 56
CONTRAST (%) 50
AUX. SENSOR> COMBINATION > RECORD SETUP> DEVICE SETUP> BATT.SERVICE> SYSTEM SETUP>
ESC -- SYSTEM SETUP -- 56
SYSTEM RESET>
CONCEPT: MEAS. POINTS POINTS/In: 2000
USER ID>
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6.3.1 System Reset
You can reset your system - with exception of language, units and time - to the default settings of STAUFF PPC-06/08/12 with the menu item “SYSTEM RESET>”. The instrument reverts to default settings when system reset is selected.
select „SYSTEM RESET“ and confirm
To set the PPC-06/08/12 to the default, set function value to „YES“
ESC -- SYSTEM SETUP -- 56
SYSTEM RESET>
CONCEPT: MEAS. POINTS POINTS/In: 2000
USER ID>
ESC -- SYSTEM RESET -- 56
SET PARAMETERS (EXCEPT LANGUAGE, CLOCK, UNITS) TO
FACTORY SETTINGS: NO
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6.3.2 Memory setting
With the menu item „CONCEPT:“ you can choose between the memory function values „MEAS.POINTS“ and „STORE.RATES“. By selecting the „MEAS. POINTS“ you can make a choice between 1000, 2000 and 4000 measurement points/channel per measurement. For a better understanding see at example calculation in chapter 5.1.
By selecting the function value „STORE RATES“ you can choose the measurement memory rate, which can be varied from 1 to 10,000 ms. A value of 500 ms means, that all 500 ms 1 MIN -value, 1 MAX -value and the average value per channel are stored.
If „MEAS. POINTS“ is selected as the menu item, then 1000, 2000 and 4000 measurement points per channel can be chosen.
If „STORE RATES“ is selected in the menu item, then the store rate in ms can be chosen.
It is recommended to work with the „CONCEPT“ value „MEAS. POINTS“, which is also the selection in the default settings.
ESC -- SYSTEM SETUP -- 56
SYSTEM RESET>
CONCEPT: MEAS.POINTS POINTS/In: 2000
USER ID>
ESC -- SYSTEM SETUP -- 56
SYSTEM RESET>
CONCEPT: STORE RATES STORE/ms: 1
USER ID>
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6.3.3 User identification
The menu item USER ID identifies the company and the user. This data is shown on any printout.
Select menu item USER ID
and confirm
Further text input is described in chapter 3.1.6.
ESC -- SYSTEM SETUP -- 56
SYSTEM RESET>
CONCEPT: MEAS: POINTS POINTS/In: 2000
USER ID>
ESC -- USER ID -- 56 INFO PRINTOUT 4 CHARACTERS max
1: Stauff Test 2: Germany 3: 4:
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7 Quickstart PC-software PPC-SOFT
The PC-software PPC-Soft (for Windows 95® / 98® / XP® and Windows NT® ) can be used to make graphic and tabular analysis of the measurement values. The values can be transferred from the memory of the PPC-06/08/12 or directly recorded by the online mode of the PPC-06/08/12. This chapter shows a rough overview of the PC-software display possibilities and measurement analysis. For more information please have a look at the online help of PC-Soft:
7.1 Installation
Please insert the provided installation-disk Nr.1, and start the file „Setup.exe“.
Now, please follow the installation instructions on the monitor.
After a successful installation please start the program via the Windows-Start menu:
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7.2 RS 232 interface test
Before the measurements of the PPC-06/08/12 can be transferred to the PC, a RS 232 interface test should be done. The provided RS 232 cable has to be connected to the COM port of the PC and the RS 232 interface of PPC-06/08/12.
select menu item „Hydraulic Tester Auto-Config...“:
following window is dispalyed:
Select the menu item RS 232 test on the PPC-06/08/12 and start the interface test on the device. (see chapter 6.1.1). After that confirm “OK“ on the PC.
After finishing the RS 232 interface test, the PC and the PPC-06/08/12 are adjusted according to the baud rate. Now you can start working together with PC and PPC.
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7.3 Measurement transfer from PPC-06/08/12 to PC-Soft
To transfer a measurement out of the PPC-06/08/12 memory press „DATA OUTPUT“.
press „DATA OUTPUT“
Make settings and start transfer (chapter 5.4).
Select the menu „Read memory“ on PC.
The following window shows the progress status.
ESC -- DATA OUT -- 56 DATA FROM: MEMORY OUTPUT TO: PC MEASUREMENT: 12
START
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After finishing, the transferred measurement is graphically displayed on the Monitor.
The user is asked to save the original measurement.
Please note!!!
There are two possibilities to save the measurements. The original file is basically saved with the suffix „.SCA“. It isn't possible to modify this file type. If for example, values or calculations are inserted, or other things are changed in the measurement, the file can be stored only with the suffix ".SCB". Therefore it’s guaranteed that original measurements can not be manipulated.
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7.4 Measurement recording by online mode
The online mode enables the PPC-06/08/12 to send measurements directly to the PC, therefore allowing real time display with PPC-Soft.
press „DATA OUTPUT“
Make settings and start transfer (chapter 5.4).
Select the menu „Online Function / Start“ on PC.
The following window is displayed:
Start the data communication on PPC 06/08/12 with " PC PRINT / START " and confirm on PC with "OK". In the next step the standard attributes like color, units, linkage etc. can be changed. After that confirm with "OK".
ESC -- DATA OUT -- 56 DATA FROM: ONLINE OUTPUT TO: PC TRANSFER:RATE: 2
PRINT PC / START
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The measured values are displayed online with the chosen settings on the Monitor, so that the process can be shown in real time.
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7.5 Online-Help
For further information about the operation and range of the PPC-Soft software, extensive online help is available.
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8 Technical Appendix – Memory Management
8.1 Expressions and Definitions
All functions and setups concerning the memory management are described in order to use the most effective adjustment for data recording.
Scanning (sample) Rate: Time distance between two readings. The PPC-06/08/12 operates with a constant scanning rate of 1 ms = 1000 readings per second. Each channel (Input) is scanned simultaneously.
Memory Interval: Time distance between two readings is saved. This interval is not depending of the scanning rate. The memory interval has to be defined in a certain form.
Memory –Rate (Sample-Rate): Number of readings per time which to be saved. A memory rate of 1 ms = sample rate of 1000 readings / sec.
Act Reading: This is the actual figure, (Act-value), which is measured by the system. The reading (Act-value) is always at the beginning of a scanning or memory interval.
MIN/MAX-Reading: The maximum and minimum reading per interval. (Sample- or memory -Interval).
Measuring Time/Recording Time: Duration Time of recording session. The user selects the recording time. Maximum is 100 hours.
Memory Capacity (MIN and MAX pts): Total memory capacity. The ServiceMaster’s memory capacity is specified by MIN/MAX Points.
Recording (Measurement): Up to six channels can be recorded. All connected sensors are recorded and the data are saved.
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8.2 Recording time, Memory -Interval and Memory capacity
sec 250
sec
1
1000
250.000
Rate Sample
Capacity Memory
Time Recording ===
The memory -rate = sample -rate (1 ms = 1000 readings /sec). According to the available memory capacity of 250.000 Points (Readings) after 250 seconds the memory capacity runs out. (app. 4 min).
This calculation is valid for one Input (channel). Using more than one channel, the total recording time is getting less.
sec 83,3
channels 3 x
sec
1
1000
250.000
Rate Sample
Capacity Memory
Time Recording ===
sec 42,5
channels 6 x
sec
1
1000
250.000
Rate Sample
Capacity Memory
Time Recording ===
Capturing fast pressure peaks is a very important issue when analyzing your hydraulic system. The error will appear in a certain period, which is not predictable. Checking the hydraulic must be done several times in order to get the failure reason. In a production line which is running in a 3 shift operation mode failures appearing maybe after several hours. When measuring (recording the readings) in order to find the fail function, several parameters have to be recorded. (e.g. pressure, flow-rate and oil temperature).
There is a conflict between capturing of fast pressure peaks and required recording time.
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P
Recording a pressure cycle in intervals
Memory-Interval
Recorded Reading
Non recorded Presure Peak
Recording Time
Recorded pressure cycle in intervals. The maximum recording time is limited by the amount of intervals. Recorded readings are at the beginning of each interval. (Static memory)
Within this procedure the memory capacity is divided by the selected recording time. A pressure peak appearing between these intervals is not recorded.
In order to record (capture) pressure peaks in short time periods, the recording must be done very fast. (Memory rate = Sampling rate)
CONCLUSION:
Common memory procedures are conditional recording fast pressure peaks.
Only one reading per interval.
Selecting a short interval, the recording time is limited.
Fast pressure peaks (millisecond time period) are not recorded for longer recording times.
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8.3 Recording a fix number of MIN/MAX-readings per channel
This conflict is does not exist for the PPC-06/08/12, using a simple trick:
For every recorded channel the amount of data points (readings) is equal. Each interval is contents one minimum and one maximum reading. The time distance between every interval depends only from selected recording time. With the menu memory concept / Points the setup can be changed
.
Rate Sample
Capacity Memory
Time Recording =
Time Recording
Channel) (1 Capacity Memory
Rate Sample =
Fixing the memory capacity for one channel (e.g. 4000 points), the time period between saved readings is changing acc. to selected recording time.
second per Readings 6
s 600 min 10
Channel) (1 4.000
Rate Sample =
=
=
The maximum and minimum reading is present in each interval. The operator selects the recording time (Duration). The memory interval is adjusted automatically. Sorting the MIN and MAX readings in each interval capturing of all pressure peaks is guaranteed. (Dynamic Memory Management)
MAX 1
MIN 1
MIN 2
P
Recording Time
Intervall 1
MAX 2
Intervall 2
PPC-06/08/12
Memory Concept
Intervall 3
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8.4 Traditional Memory Concept versus PPC-06/08/12
Memory Concept
PPC-06/08/12: MIN and MAX readings represent the graph.
The amount of MIN-and MAX readings per channel (Input) is selected. The length of each interval is automatically according to selected recording time (Duration). Up to 100 hours can be recorded running with six channels simultaneously.
Traditional: Actual readings (Points) represent the graph.
When recording long cycles the memory interval has to be adjusted acc. to the memory capacity. Pressure peaks are not recorded if the reading is within this interval. There is no guarantee in order to capture all pressure peaks during the recording time.
MAX 1
MIN 2
Intervall 1
MAX 2
Intervall 2
Intervall 3
Point 1 Point 2 Point 3
PPC-06/08/12 Recording
Traditional Recording
P
Recording Time
MIN 1
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8.5 PPC-06/08/12 Setup
The menu SETUP/OPTION selecting SYSTEM SETUP the parameters can be changed. Selecting the item CONZEPT the user is able to choose two operation modes:
A Measuring Points
Adjusting measuring points for each channel (1.000 / 2.000 or 4.000 points)
B Memory Rate
Selecting a certain memory rate = storing rate (1 ms . . 10.000 ms )
8.5.1 Measuring Points
All PPC-06/08/12 -meters delivered with a default setting of 2.000 MIN/MAX Points per channel.
The total memory-capacity is different acc. to the versions:
PPC-Version Channel
(Input)
MIN and MAX Points
Capacity
PPC-06 3 60.000 PPC-08 4 125.000 PPC-12 6 250.000
How many Recordings are filling the Memory (Total Capacity) ?
Example: A PPC-12 with a 4-channel recording (2x pressure, flow and temperature).
channels operated x Points Measuring
Capacity Memory
Recordings =
31
Channel 4 x (Channel) 2.000
250.000
Recordings ==
In reality the number of connected sensors varies. Therefore the remaining memory capacity depends also on always on the operated sensors. The available memory capacity is shown in percentage.
In this example the remaining memory capacity is calculated by:
96% 242.000 4x2.000 - 250.000 ==
4% of total Memory Capacity is consumed.
This consumption is not depending on Rec. Time!!
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How many readings are transferred to the Memory (Sample Rate)?
scond per Readings 3
s 600 min 10
2.000
Rate Sample =
=
=
What is the time interval for each storing?
ms 300 sec. 0,30
2.000
s 600 min 10
Rate Sample ==
=
=
8.5.2 Memory –Rate = storing rate
Selecting STORE RATE this time interval (sample rate) can be set. Now the numbers of measuring points are variable and depending of selected recording time.
points MIN/MAX 10.000
ms 10
s 100
Rate Sample
s 100
nconsumptio Memory ===
10.000 Points are consumed. In a 4-channel operation for each channel we have:
channel per pts 2,500
channels 4
pts 10.000
=
Remaining memory capacity is given by:
96% 240.000 10.000 - 250.000 ==
For one recording in a 4-channel operation 4% of total memory capacity was used.
Please Note:
When using the concept storing rates 25.000 points limit the total memory capacity.
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8.6 Customer’s benefits based on PPC-06/08/12 memory
management (Points/Channel)
Based on the PPC-06/08/12 memory technology all important criteria are fulfilled:
1. Capturing pressure peaks in a millisecond period
2. Recording long cycle times and point out pressure peaks in each interval
3. No calculation of memory intervals depending on the recording time.
The dynamic memory management permanently sort out the MIN and MAX reading in each
memory interval. Traditional memory techniques sampling the first reading and assign it to
the corresponding memory interval. The PPC-06/08/12 selects in each interval the highest
and the lowest reading and assigns it to the interval.
Due to this technique acc. to permanently MAX and MIN registration, the PPC-06/08/12 is
able to capture all pressure peaks since the recording was started.
The number of MIN/MAX readings is equal for each input. (e.g. 4000 MIN and MAX points). The memory capacity of 250.000 points allows up to 40 independent recording cycles.
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