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Operation manual Pneumator ∙Testo Industrial Services ∙Version 1.4 ∙2019 ∙Page 1

Operation manual Pneumator ∙Testo Industrial Services ∙Version 1.4 ∙2019 ∙Page 2

Order number Measuring range

0519.0816 1 hPa

0519.0817 10 hPa

0519.0818 100 hPa

0519.0819 1000 hPa

Operation manual Pneumator ∙Testo Industrial Services ∙Version 1.4 ∙2019 ∙Page 3

Content

1. Introduction and safety instructions ................................................................ 4

2. Overview operation elements and interfaces .................................................. 5

3. Operating modes................................................................................................ 5

4. General operation............................................................................................... 6

5. Menu setting for all operating modes............................................................... 7

6. Operating mode CTRL – calibration (step-by-step)......................................... 8

7. Operating mode AUTO – calibration (programmed steps) ........................... 11

8. Operating mode MESS – Pressure measurement ......................................... 15

9. Operating mode VELO – Velocity measurement ........................................... 17

10. Operating mode FLOW – volume flow measurement ................................... 20

11. Computer programming .................................................................................. 22

12. Technical data .................................................................................................. 25

13. Trouble-shooting.............................................................................................. 23

14. Service .............................................................................................................. 26

Operation manual Pneumator ∙Testo Industrial Services ∙Version 1.4 ∙2019 ∙Page 4

1. Introduction and safety instructions

Dear Sir or Madam,

Thank you for buying a Pneumator from Testo industrial services GmbH.

We are sure, that this instrument will be of benefit to you and your work for a long

time.

Please read the operation manual carefully and get acquainted with the handling of

the Pneumator before you start operating.

Should a problem occur, which you are not able to solve yourself, please contact our

service department or your salesman. We will make every effort to help you as fast

and competent as possible.

Attention:

- The Pneumator is supplied via a power supply with 20 to 26 VDC at an

amperage of 1 A. Never touch parts under Voltage!

- The inserted reference sensor has an overload protection. However, please

note that the max. application of pressure is never exceeded, as otherwise

lasting destruction could occur:

oPneumators 1 / 10 / 100 hPa 5-times overload stability

oPneumators 1000 hPa 2-times overload stability

- Please note that a negative pressure at the minus connection may never

exceed 10% of the measuring range

- The Pneumator contains an accumulator (lithium manganese cells). This

should be unloaded occasionally, in order to optimize the performance.

- Concerning transport, the Pneumator must be packed shockproof in order to

avoid damages!

- Please leave the device closed. When opening the device the warranty

expires.

Operation manual Pneumator ∙Testo Industrial Services ∙Version 1.4 ∙2019 ∙Page 5

2. Overview operation elements

The Pneumator has two pressure connections, one display as well as 9 control

buttons:

Pressure „+“ With differential pressure, the higher pressure must be attached here

With relative pressure, please attach only to this connector

Pressure „-“ With differential pressure, the lower pressure must be attached here

Display Depending upon selected mode of operation all relevant

information is shown here.

The operating keys are described in the section „general instruction information“

Interfaces:

On the back of the Pneumator, you will find the following interfaces:

- Voltage supply (20..26 VDC, 1 A, min. 30 W, by provided power supply)

- RS232

- USB

3. Operating modes

Operation manual Pneumator ∙Testo Industrial Services ∙Version 1.4 ∙2019 ∙Page 6

Operating

mode

Page Application Pressure connection Function

CTRL 8 Calibration

(step-by-step)

Test device (Differential-/

relative pressure measuring

instrument)

Pump builds up selected

pressure, display indicates the

reference sensor value

AUTO 11 Calibration

(programmed)

Test device (Differential/

Relative pressure instrument)

As CTRL, with pre-

programmed steps

MESS 15 Pressure

measurement

Differential

pressure

Relative

pressure

Process pressure…

…connect to „Plus“ and

„Minus“

…connect to „Plus“

Pump deactivated,

Display indicates the pressure

value of the reference sensor

VELO 17 Velocity

measurement

Pitot tube (air duct) As MESS, however velocity

display

FLOW 20 Volumetric

flow-

measurement

Pitot tube (air duct) As MESS, however Volume

flow display

4. General operation

Each mode of operation is programmed at first (in the menu and/or in its submenus),

before it is used. Programming is done as follows:

oUsually by operating buttons (in this description always written in capital

letters). Their function is described below.

oBy the RS232 or USB interface (see the chapter „computer programming“)

o

Overview control-buttons:

I/O On-off switch. Function of the off switch:

In the mains operation it is switched to battery charge.

In battery operation the instrument is switched off.

MENU During operation: Start menu programming

In the menu: Leave menu, start application

In the submenu: not applied

OK During operation: see description of the individual operation mode

In the menu: Choose submenu

In the submenu: leave submenu, store set values

UP During operation: see description of the individual operation mode

In the menu: next line

In the submenu: value +1

DOWN During operation: see description of the individual operation mode

In the menu: previous line

In the submenu: value -1

0% During operation: see description of the individual operation mode

In the menu: without function

Operation manual Pneumator ∙Testo Industrial Services ∙Version 1.4 ∙2019 ∙Page 7

In the submenu: one decimal to the left

100% During operation: see description of the individual operation mode

In the menu: without function

In the submenu: one decimal to the right

LEAK Tightness test (between the test device and the reference sensor), at

CTRL and AUTO without function

ZERO Manual zero setting of the reference sensor

5. Menu settings for all operating modes

In this section the settings are described, which are relevant for all modes of

operation. All further settings, you will find described in the respective chapters.

oPress MENU

oSubmenu „Language“: Change menu language (buttons UP, DOWN,

confirming with OK).

oSubmenu settings: At OK a further menu overview is being opened.

oSubmenu zero: At zeroing the reference pressure sensor is being

pressurized with the differential pressure = 0 Pa, by opening internal

electromagnetic valves. This can be done manually (ZERO) or in

automatic cycles (each duration approx. 5 s). The setting is done in the

following submenus.

Submenu Auto-Zero: Activated = „ON“ / deactivated =

„OFF“ (buttons UP, DOWN, confirm with OK)

Submenu interval: Value range 1 .. 60 minutes selectable

(buttons UP, DOWN, 0%, 100%, confirm with OK)

Leave submenu by pressing MENU

oSubmenu RS232/USB: compare with „programming via PC“

oSubmenu display: The brightness is defined in another submenu.

Submenu „brightness “: Adjustment of the display brightness .

Range of value 0% to 100% (buttons UP, DOWN, 0%, 100%,

confirm with OK).

oSubmenu info: Equipment specification about the measuring range,

firmware and hardware

Operation manual Pneumator ∙Testo Industrial Services ∙Version 1.4 ∙2019 ∙Page 8

6. Operating mode CTRL – calibration (step-by-step)

Purpose:

The operation mode CTRL (Control / regulation) is selected for the calibration of a

test device in individual steps. In case the calibration takes place at the same

pressure ranges frequently, we recommend the operation mode AUTO.

Device function and schematic diagram:

In the operation mode CTRL the pump is turned on and regulates

in each case the requested pressure set point value. Thereby the

internal reference pressure sensor, whose measured value is

shown in the display in each case, supplies the actual pressure

value.

Connection of the test device:

Differential pressure test device: Connect to „Plus“ and „Minus“.

Relative pressure test device: Connect to „Plus“.

Programming:

oPress MENU

oSubmenu „Mode“: press UP or DOWN until CTRL appears. Selecting with

OK.

oSubmenu „Range“: Define maximal calibration pressure (buttons UP,

DOWN, 0%, 100%, confirming with OK). Possible value ranges compare

chart.

Pneumator type Minimal value Maximal value

0519.0816 -0,1 hPa 1,1 hPa

0519.0817 -1 hPa 11 hPa

0519.0818 -10 hPa 110 hPa

0519.0819 -100 hPa 1100 hPa

oSubmenu „Unit“: Define requested pressure unit (buttons UP and DOWN,

confirm with OK). The maximal calibration pressure (Submenu „Range“) is

being calculated automatically.

oSubmenu „Steps“: Define requested (percental) step rate (buttons UP,

DOWN, 0%, 100%, confirm with OK).

oExample: at range/unit = +1.000 hPa and steps = the following pressure

sequence is provided: 0 hPa, then 250 hPa, then 500 hPa, then 750 hPa, and

finally 1.000 hPa pressure.

oSubmenu „Setting Zero“: Definition of automatic zero procedure

oAuto zero = ON: right after leaving the menu, and then on a regular

basis the zero points gets adjusted

oInterval: Time Distance in minutes between two zero adjustments

oLeave the menu by pressing the MENU button

Operation manual Pneumator ∙Testo Industrial Services ∙Version 1.4 ∙2019 ∙Page 9

Operation / application:

After selecting the operation mode CTRL and leaving the menu (MENU button) a

zero adjustment is automatically conducted, in case AUTO ZERO = ON.

Subsequently, the reference sensor is venting („VENT “).

The respective pressure set point value now results now from the nominal pressure

value (see upper display middle, initial value = full measuring range), multiplied by a

percentage value (see lower display middle, initial value = 0%). The respective set

point value is indicated in the lower right display, the unit in the upper right. Note: The

new set point value is activated immediately after the change of the absolute value or

of the percental value.

Example (compare illustration):

- Nominal value: 100.00 Pa

- Percental value: 0%

- Current set point value = 100 Pa * 0% = 0 Pa

You can switch between the absolute value and the

percental value by pressing OK.

Change of the percental value (lower display middle - framed bold):

For the gradual up - and down regulation of the pressure value, e.g. 0 / 25 / 50 / 75 /

100 % of the absolute value. The step size x is defined in the submenu „range“ .

UP: Pressure rise of x % of the measuring range

DOWN: Pressure reduction of x % of the measuring range

0%: Pressure = 0 Pa

100%: Pressure = 100% of the measuring range

Change of the absolute value (upper display center - framed bold):

For the start-up of a given pressure value, e.g. 610 hPa. In most cases it is advisable

to leave this value on 100% of the measuring range.

UP: Digit +1

DOWN: Digit -1

0%: one digit position to the left

100%: one digit position to the right

Retrieval of the calibration data:

As soon as the central display figure indicates a stable value, the respective

calibration data can be retrieved:

- physical unit: Display value upper right

- pressure set value: Display value in the lower right

- actual value of test device: Display of the test device

- Reference value: Display middle

Manual zero balance (ZERO)

In case the reference measuring cell is to be set to zero during the calibration, please

use the ZERO button. After approximately 3-5 seconds, the previous status is started

up again.

Operation manual Pneumator ∙Testo Industrial Services ∙Version 1.4 ∙2019 ∙Page 10

Leakage test (LEAK)

In case the test device has to be checked whether it is connected pressure-tight, you

can start a leakage test with the LEAK button at each pressure step, upon reaching a

stabilized value. The pump is now switched off; the middle display value shows

whether a stable value is being held or whether the pressure value sinks. Pressing

the LEAK button again, you return to the CTRL operating mode.

Example (see display photo):

- Lower left: time since pressing LEAK in s, here 89 s

- Lower middle: Pressure change in % since pressing

LEAK, here increase by approx. 1%

- Lower right: Absulute Pressure change, here by

+0,099 hPa

Leaving the operation mode CTRL

When pressing the MENU button, the Pneumator is first driven into the VENT mode

(venting) in order to reduce the internal pump pressure. By pressing the MENU

button again, the operation menu is shown. In the submenu “Modus” another mode

of operation can be selected.