Kobold HND-P239 Manual de usuario

Operating Instructions

for

Handheld Digital Pressure Meter

with internal pressure sensor

Model: HND-P239

HND-P239

page 2 HND-P239 K01/0307

1. Contents

1. Contents........................................................................................................2

2. Note ..............................................................................................................3

3. Instrument Inspection....................................................................................3

4. Regulation Use..............................................................................................3

5. Operating Principle........................................................................................4

6. Safety Requirements.....................................................................................4

7. Electrical Connection ....................................................................................5

8. Operation ......................................................................................................6

9. Configuration.................................................................................................7

9.1 Different Kinds Of Measuring: „rAtE-Slo, -P.dEt, -FASt“ ......................8

9.2 Sea Level Correction ...........................................................................8

9.3 Averaging Function..............................................................................9

9.4 Power Off Time....................................................................................9

9.5 Address................................................................................................9

9.6 Alarm ...................................................................................................9

9.7 Real Time Clock ................................................................................10

10. Operation Of Logger ...................................................................................10

10.1 „Func-Stor“: Storing Single Measurements........................................10

10.2 „Func-CYCL“: Automatic Recording With Selectable Logger-Cycle-Time

11. The Serial Interface.....................................................................................13

12. Error And System Messages ......................................................................14

13. Calibration Services ....................................................................................14

14. Maintenance ...............................................................................................15

14.1 Battery Operation...............................................................................15

15. Technical Information..................................................................................15

16. Order Codes ...............................................................................................17

16.1 Accessories for HND-P ......................................................................17

17. Declaration of Conformance .......................................................................18

Manufactured and sold by:

Kobold Messring GmbH

Nordring 22-24

D-65719 Hofheim

Tel.: +49(0)6192-2990

Fax: +49(0)6192-23398

E-Mail: [email protected]

Internet: www.kobold.com

HND-P239

HND-P239 K01/0307 page 3

2. Note

Please read these operating instructions before unpacking and putting the unit

into operation. Follow the instructions precisely as described herein.

The devices are only to be used, maintained and serviced by persons familiar

with these operating instructions and in accordance with local regulations

applying to Health & Safety and prevention of accidents.

When used in machines, the measuring unit should be used only when the

machines fulfil the EWG-machine guidelines.

3. Instrument Inspection

Instruments are inspected before shipping and sent out in perfect condition.

Should damage to a device be visible, we recommend a thorough inspection of

the delivery packaging. In case of damage, please inform your parcel service /

forwarding agent immediately, since they are responsible for damages during

transit.

Scope of delivery:

The standard delivery includes:

• Handheld Digital Pessure Meter with internal pressure sensor

model: HND-P239

• Operating Instructions

4. Regulation Use

Any use of the Handheld Digital Pressure Meter, model: HND-P239, which

exceeds the manufacturer’s specification may invalidate its warranty. Therefore,

any resulting damage is not the responsibility of the manufacturer. The user

assumes all risk for such usage.

HND-P239

page 4 HND-P239 K01/0307

5. Operating Principle

The KOBOLD Handheld Digital Pressure Meters HND-P239 have an integrated

pressure sensor for absolute pressure measurement. The measuring device is

connected to the measuring point by means of a stable, metal connection on the

top of the housing and an optional plastic hose. This device design offers the

possibility of also displaying the barometric air pressure in relation to sea level

»zero«. In this case, air pressure is corrected by entering the height above

»zero« in meters. Naturally, these devices also have the minimum/maximum

value memory, a hold function, a tare function, automatic self-shut-off function,

and zero point adjustment. The HND-P239 devices also offer additional functions

like the logger function, peak value memory, minimum/maximum alarm, an

adjustable measuring cycle, and averaging.

6. Safety Requirements

This device has been designed and tested in accordance with the safety

regulations for electronic devices.

However, its trouble-free operation and reliability cannot be guaranteed unless

the standard safety measures and special safety advises given in this manual will

be adhered to when using the device.

1. Trouble-free operation and reliability of the device can only be guaranteed if

the device is not subjected to any other climatic conditions than those stated

under "Technical Information".

2. If the device is transported from a cold to a warm environment condensation

may cause in a failure of the function. In such a case make sure the device

temperature has adjusted to the ambient temperature before trying a new

start-up.

3. If device is to be connected to other devices the circuitry has to be designed

most carefully. Internal connection in third party devices (e.g. connection

GND and earth) may result in not-permissible voltages impairing or

destroying the device or another device connected.

Warning! If device is operated with a defective mains power

supply (e.g. short circuit from mains voltage to output voltage)

this may result in hazardous voltages at the device (e.g. at sensor

socket or interface).

HND-P239

HND-P239 K01/0307 page 5

4. If there is a risk whatsoever involved in running it, the device has to be

switched off immediately and to be marked accordingly to avoid re-starting.

Operator safety may be a risk if:

- there is visible damage to the device

- the device is not working as specified

- the device has been stored under unsuitable conditions for a longer

period of time.

In case of doubt, please return device to manufacturer for repair or maintenance.

7. Electrical Connection

By operation with external power supply:

When using a power supply please note that operating voltage has to be 10.5 to

12 VDC. Do not apply overvoltage!!! Cheap 12V-power supplies often have

excessive no-load voltage. We, therefore, recommend using regulated voltage

power supplies. Trouble-free operation is guaranteed by our power supply HND-

Z002. Prior to connecting the power supply to the mains make sure that the

operating voltage stated at the power supply is identical to the mains voltage.

HND-P239

page 6 HND-P239 K01/0307

8. Operation

When switching on the device and the logger function is not off the time of the

integrated clock will shortly be displayed.

After changing the battery the clock-setting menu is activated automatically

(‚CLOC‘). Check the clock and adjust, if necessary (see chapter 9. Configuration).

On-/Off-Switch

Tara: Calling of tara function, zero point adjustment

min/max: Showing the min- resp. max-memory in sec.

display

Store/Quit: Calling of hold function resp. calling of logger

functions

(please refer to chapter 10. “Operation Of Logger”)

Set/Menu: Calling of configuration

Max Memory: Pressing “max“ (key 2) shows the maximum of the measured

values. Pressing it again hides it. To clear the max memory press key „max“ for

>2 seconds.

Min Memory: Pressing “min“ (key 5) shows the minimum of the measured

values. Pressing it again hides it. To clear the min memory press key „min“ for >2

seconds.

Hold Function: By pressing “Store/Quit“ (key 6) the last measuring value

will be held in the secondary display. Pressing it again hides it. (only when logger

= ‚off‘).

Tare Function: By pressing ”Tara“ (key 3) the display will be set to 0. All

measurings from then on will be displayed relatively to the set tare value. When

tara function is activated, the arrow "Tara" appears in the display. To deactivate

tare function press ”Tara“ for >2 seconds.

Note: Activating/deactivating tara clears the max- & min-memories.

123

456

OFF max

Tara

Storemin

Set

Menu Quit

HND-P239

HND-P239 K01/0307 page 7

9. Configuration

To change device settings, press “Menu” (key 4) for 2 seconds. This will call the

configuration menu (main display: „SEt“).

Pressing key “Menu” changes between the menu, pressing “4“ (key 3) jumps to

the referring parameters, which can be selected with key “4“ (key 3).

The parameters can be changed with “5“ (key 2) or “6“ (key 5).

Pressing “Menu” again jumps back to the main configuration menu and saves

the settings.

“Quit” (key 6) finishes the configuration and returns to standard measuring

operation.

Menu Param. Values Meaning

‚Menu‘ 45or6

Set Configuration: Generic Configuration

Unit mbar,bar.. Unit: Unit of display *

SL oFF/on Sea-Level: on or off *

Alti -2000..9999 Altitude: Input of altitude above sea level [m] (only if SL on) *

Rate: Measuring rate (see chapter 9.1 Different Kinds Of

Measuring: „rAtE-Slo, -P.dEt, -FASt“)

Slo Slow: measuring rate (4 Hz filtered, low power consumption) *

FASt Fast: measuring rate, filtered (>100 Hz) *

rAtE

P.dEt Peak detection: fast measuring rate, unfiltered (>100 Hz) *

1-120 Averaging period in seconds, used by the averaging function

t.AVG oFF Averaging function deactivated

1-120 Auto Power-Off time in minutes

P.oFF oFF Auto Power-Off deactivated

SEt

ConF

Adr. 01,11..91 Base address of interface

Set Alarm: Settings Of Alarm Function

AL. On Alarm on, with horn-sound

no.So Alarm on, without horn-sound

oFF Alarm deactivated

AL.Lo 0 bar ... AL.Hi Min alarm rail (not when AL. oFF. Sensor-Min is the lower display

range of connected sensor)

SEt

AL.

AL.Hi AL.Lo ...1.3 bar Max alarm rail (not when AL. oFF. Sensor-Max is the upper

display range of connected sensor)

Set Logger: Configuration Of Logger Function *

Func CYCL Store: logger function, ‚cyclic logger’ *

Stor Cyclic: logger function ‚individual value logger’ *

oFF no logger function *

CYCL 1..3600 Cycle time of cyclic logger [seconds] *

SEt

LoGG

Lo.Po on/oFF Low-power logger with very low power consumption

(only for cyclic logger and slow measuring rate)

Set Clock: Setting Of Real Time Clock

CLOC HH:MM Clock: Setting of time hours: minutes

dAtE TT.MM Date: day. month

SEt

CLOC

YEAr YYYY Year:

Note! If the logger memory contains data already, the

menus/parameters marked with (*) can not be invoked! If these

should be altered the logger memory has to be cleared before! (key

6, please refer to. chapter 10. “Operation Of Logger”)

HND-P239

page 8 HND-P239 K01/0307

9.1 Different Kinds Of Measuring: „rAtE-Slo, -P.dEt, -FASt“

Three different kinds of measuring pressure are supported. Two of them are

working with high measuring frequency of more than 100 measurings per second.

If one of them was chosen in the configuration (see above), this will be displayed

in the secondary display: „P.dEt“ or „FASt“.

9.1.1 rAtE-Slo: Standard Measuring

Measuring rate 4Hz, averaging and filter functions are active.

Application: Measuring of slowly changing or static pressures, e.g. measuring of

leak proofness, atmospheric pressure...

Highest accuracy, high noise immunity (EMI and unstable measuring signals),

low power consumption.

9.1.2 rAtE-P.dEt: Peak detection

Measuring rate >100Hz, the value is displayed unfiltered.

Application with logger function: Measuring of short pressure peaks or fast

changing pressures with a resolution of <10ms. The cyclic logger function records

the arithmetic mean value, the highest and the lowest peak of the referring time

interval.

Attention: higher power consumption, measuring is sensitive to noise (EMI,..).

9.1.3 rAtE-FASt: Fast filtered measuring

Measuring rate >100Hz, the value is filtered slightly (higher noise immunity than

P.dEt, small peaks will be filtered out), apart from that identical behaviour like

P.dEt.

9.2 Sea Level Correction

The device displays the absolute pressure measured at the sensor. This is not

necessarily the same like the values given by weather stations! The weather

stations‘ values are giving the pressure at sea level. Usually the sensor is placed

above sea level and therefore, if the value at sea level(zero) is to be measured,

the pressure loss resulting from the actual level above sea level has to be

considered! To correct the measuring display activate the „Sea-Level-Function“

(SL, please refer to chapter 9. “Configuration”). Then enter the altitude above sea

level of the sensor‘s location in meters (Alti, please refer to chapter 9.

Configuration). When activated, the display shows the SL-arrow and the device

displays the pressure value at sea level.

HND-P239

HND-P239 K01/0307 page 9

9.3 Averaging Function

The averaging function concerns the display values (LCD and interface). It is

completely independent from the averaging of the logger function, please don’t

mix them up!

The averaging integrates the measuring values during a selectable period of time

and then calculates the average display value. It is independent from the selected

kind of measuring (slow, fast, peak detect)

As long as not enough values are collected (selected averaging time) to calculate

a average value, the upper display shows “----“, the lower display a ‘countdown‘.

During an active low-power-logging procedure the averaging is always

deactivated.

Function of min/max-value memory during averaging:

• If averaging is activated and slow measuring is selected (rAtE-Slo),

the min-/max-value memory refers to the average display value.

• If averaging is activated and fast measuring is selected (rAtE-FASt or P.dEt) ,

the min-/max-value memory refers to the internal measured values (fast peaks

can be detected).

9.4 Power Off Time

If there won’t be pressed any key and no interface communication takes place for

the time of the power off time setting (P.Off), the device will be switched off

automatically to save battery power.

If P.oFF = oFF then the automatic switch off is deactivated.

9.5 Address

Up to 10 devices of the GMH3xxx- handheld-family can be connected to a serial

interface at once (depending on interface converter, e.g. GRS3105: 5 devices).

To get access to each device the base addresses of the devices have to be

different. For example choose 01 for the first, 11 for the second device and so on.

See also chapter 11. “The Serial Interface”.

9.6 Alarm

There are three possible settings: Alarm off (AL. oFF), on with horn sound (AL.

on), on without horn sound (AL. no.So).

Following conditions will display an alarm, when the function is activated (on or

no.So):

- Value is below lower (AL. Lo) or above upper alarm rail (AL.Hi).

- Sensor error (Sens Erro)

- Low battery (bAt)

- Fe 7: System error (always with sound)

In case of an alarm and when polling the interface the prio-flag is set in the

returned interface message.

HND-P239

page 10 HND-P239 K01/0307

9.7 Real Time Clock

The real time clock is used for the logger function: Recorded values are also

containing the point of time, when they were measured. Please check the settings

when necessary.

If the battery was replaced the referring menu ‚CLOC‘ will automatically be

started.

10. Operation Of Logger

The device supports two different logger functions:

„Func-Stor“:

each time when „store“ (key 6) is pressed a measurement will be recorded.

„Func-CYCL“:

measurements will automatically be recorded each interval, which was set in the

logger menu ‚CYCL‘ until the logger will be stopped or the logger memory is full.

The recording is started by pressing „Store“ 2 seconds.

The logger records 3 measurement results each time:

Current or mean value (depending on logger setting, see below), min peak and

max peak.

Min and max peak are the minimum resp. the maximum of the measured values

since the last recording.

Using them allows f.e. analysis of fluctuating pressures.

For the evaluation of the data the software HND-Z034 has to be used. The

software also allows easy configuration and starting of the logger.

When the logger is activated (Func Stor or Func CYCL) the hold function is no

more available, the key 6 is solely used for the operation of the logger functions.

10.1„Func-Stor“: Storing Single Measurements

Each time when „store“ (key 6) is pressed a measurement and its time stamp will

be recorded.

The recorded data can be viewed either in the display (when calling the

configuration an additional menu „REAd LoGG“ is displayed, see below) or by

means of the interface and a PC with GSOFT3050-software.

Max. number of measurings: 99

A measuring contains:

- current measuring value at the time of recording

- min peak, max peak since the last recording

- - time and date of the recording

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