Delta HD2114P.0 Manual de usuario

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Operating manual

Manometers for Pitot tubes /

thermometers

HD2114P.0 – HD2114P.2

HD2134P.0 – HD2134P.2

www.deltaohm.com

Companies / Brands of GHM

English

Keep for future reference.

HD2114P/HD2134P - 2 - V2.3

CONTENTS

INTRODUCTION..................................................................................................................................................... 3

KEYBOARD AND MENU DESCRIPTION ............................................................................................................ 8

THE PROBES..........................................................................................................................................................14

OPERATION ............................................................................................................................................................15

DIMENSIONS OF PITOT TUBES..................................................................................................................................16

FLOW RATE MEASUREMENT ....................................................................................................................................16

TEMPERATURE MEASUREMENT ...............................................................................................................................18

WARNINGS AND OPERATING INSTRUCTIONS ..............................................................................................20

INSTRUMENT SIGNALS AND FAULTS..............................................................................................................21

LOW BATTERY WARNING AND BATTERY REPLACEMENT.......................................................................23

INSTRUMENT STORAGE.....................................................................................................................................24

SERIAL INTERFACE AND USB ...........................................................................................................................25

STORING AND TRANSFERRING DATA TO A PERSONAL COMPUTER......................................................27

THE LOGGING FUNCTION -ONLY FOR HD2114P.2 AND HD2134P.2 .........................................................................27

CLEARING THE MEMORY -ONLY FOR HD2114P.2 AND HD2134P.2..........................................................................27

THE PRINT FUNCTION -ONLY FOR HD2114P.2 AND HD2134P.2.............................................................................28

CONNECTION TO A PC........................................................................................................................................29

CONNECTION TO THE RS232C SERIAL PORT OF THE INSTRUMENT -ONLY FOR HD2114P.2 AND HD2134P.2 ..............29

CONNECTION TO THE USB 2.0 PORT OF THE INSTRUMENT -ONLY FOR HD2114P.2 AND HD2134P.2..........................29

NOTES ABOUT WORKING AND OPERATIVE SAFETY..................................................................................30

INSTRUMENT TECHNICAL CHARACTERISTICS...........................................................................................31

TYPE KTHERMOCOUPLE PROBES ............................................................................................................................33

ORDER CODES ......................................................................................................................................................34

HD2114P/HD2134P - 3 - V2.3

INTRODUCTION

The HD2114P.0 and HD2114P.2, HD2134P.0 and HD2134P.2 are portable micromanometers

using Pitot or Darcy tubes and a large LCD display. They are used to perform measurements in the

fields of air conditioning, heating and ventilation.

They measure the differential pressure detected by a Pitot or Darcy tube connected to the instrument

inputs acquiring the wind speed and flow rate inside pipelines and vents. They also measure the

temperature using a type K thermocouple sensor.

The HD2114P.2 and HD2134P.2 instruments are dataloggers. They memorize up to 36,000

samples which can be transferred from the instrument connected to a PC via the RS232C serial port

or USB 2.0 port. The storing interval, printing, and baud rate can be configured using the menu.

The HD2114P.2 and HD2134P.2 instruments can transfer via the RS232C serial port the acquired

measurements to a PC or to a portable printer in real time.

The Max, Min and Avg function calculates the maximum, minimum or average values. Other

functions include: the relative measurement REL, the HOLD function, and the automatic turning off

which can also be disabled.

The instruments have IP66 protection degree.

If not otherwise specified, this manual's descriptions are intended to be applicable to all

models.

HD2114P/HD2134P - 4 - V2.3

HD2114P.0 - HD2134P.0

Micromanometer with Pitot tube - Thermometer

HD2114P/HD2134P - 5 - V2.3

HD2114P.0 - HD2134P.0

1. Input for thermocouple K, standard miniature connector.

2. Positive input (+) into the pressure sensor. Quick coupling Ø 5mm

3. Battery symbol: displays the battery charge level.

4. Function indicators.

5. Secondary display line.

6. HOLD/key: freezes the measurement during normal operation; in the menu, increases the

current value.

7. FUNC/ENTER key: during normal operation displays the maximum (MAX), the minimum

(MIN) and the average (AVG) of current measurements; in the menu, confirms the current

selection.

8. REL/key: enables the relative measurement (displays the difference between the current

value and the logged value when the key is pressed); in the menu, decreases the current value.

9. MENU key: allows access to and exit from the menu.

10. °C/°F-ESC key: when the thermocouple probe is not connected, it allows manual modification

of the temperature. When double pressed, changes the unit of measurement for temperature

from degrees Celsius to Fahrenheit; in the menu, cancels the operation in progress without

making changes.

11. UNIT/DUCT CALC key: during normal operation selects the unit of measurement for the

main variable; when pressed together with the FUNC key, starts the duct flow rate calculation

procedure.

12. ON-OFF/AUTO-OFF key: turns the instrument on and off; when pressed together with the

HOLD key, disables the automatic turn off.

13. Peak, MAX, MIN and AVG symbols.

14. Main display line.

15. Degree of multiplication -3, 3 or 6: the apex, if present, indicates that the displayed

measurement must be divided by 1000 (apex "-3"), multiplied by 1000 (apex "3") or by

1,000,000 (apex "6").

16. Line for symbols and comments.

17. Negative input (-) into the pressure sensor. Quick coupling Ø 5mm

HD2114P/HD2134P - 6 - V2.3

HD2114P.2 - HD2134P.2

Micromanometer with Pitot tube - Thermometer

HD2114P/HD2134P - 7 - V2.3

HD2114P.2 - HD2134P.2

1. Input for thermocouple K, standard miniature connector.

2. Positive input (+) into the pressure sensor. Quick coupling Ø 5mm

3. External auxiliary power supply connector input (positive at centre).

4. Battery symbol: displays the battery charge level.

5. Function indicators.

6. Secondary display line.

7. HOLD/key: freezes the measurement during normal operation; in the menu, increases the

current value.

8. FUNC/ENTER key: during normal operation displays the maximum (MAX), the minimum

(MIN) and the average (AVG) of current measurements; in the menu, confirms the current

selection.

9. REL/key: enables the relative measurement (displays the difference between the current

value and the logged value when the key is pressed); in the menu, decreases the current value.

10. SERIAL/ERASE LOG key: starts and ends the data transfer to the serial communication port.

In the menu, clears the data contained in the instrument's memory.

11. LOG/DUMP LOG key: during normal operation, starts and ends the saving of the data in the

internal memory; in the menu, starts the data transfer from the instrument's memory to the PC.

12. Mini-USB type B connector for USB 2.0. For the connection to PC (with cable CP23).

13. MENU key: allows access to and exit from the menu.

14. °C/°F-ESC key: when the thermocouple probe is not connected, it allows manual modification

of the temperature. When double pressed, changes the unit of measurement for temperature

from degrees Celsius to Fahrenheit; in the menu, cancels the operation in progress without

making changes.

15. UNIT/DUCT CALC key: during normal operation selects the unit of measurement for the

main variable; when pressed together with the FUNC key, starts the duct flow rate calculation

procedure.

16. ON-OFF/AUTO-OFF key: turns the instrument on and off; when pressed together with the

HOLD key, disables the automatic turn off.

17. Peak, MAX, MIN and AVG symbols.

18. Main display line.

19. Degree of multiplication -3, 3 or 6: the apex, if present, indicates that the displayed

measurement must be divided by 1000 (apex "-3"), multiplied by 1000 (apex "3") or by

1,000,000 (apex "6").

20. Line for symbols and comments.

21. 8-pole MiniDin connector for RS232C. For the connection to PC (with cable HD2110CSNM or

C206) or printer (with cable HD2110CSNM).

22. Negative input (-) into the pressure sensor. Quick coupling Ø 5mm

HD2114P/HD2134P - 8 - V2.3

KEYBOARD AND MENU DESCRIPTION

Foreword

The instrument keyboard is composed of single-function keys, like the MENU key, and double-

function keys such as the ON-OFF/Auto-OFF key.

In the double-keys, the function in the upper part is the "main function", while the one in the bottom

part is the "secondary function". When the instrument is in standard measurement mode, the main

function is active. In the menu or in conjunction with the FUNC key, the secondary function is

enabled.

The pressing of a key is accompanied by a short confirmation beep: a longer beep sounds if the

wrong key is pressed.

Each key specific function is described in detail below.

ON-OFF/AUTO-OFF key

The instrument is turned on and off using the ON/OFF key. The turning on enables all display

segments for a few seconds, displays the setting of the Pitot or Darcy tube constant (please see the

Cost_PIT_DARC parameter on page 11) and sets the instrument ready for normal measurement.

If no thermocouple probe is connected to the input, it is the manual temperature which is

displayed in the secondary line. This value is 25°C by default.

Automatic turning off

The instrument has an AutoPowerOff function that automatically turns the instrument off after about

8 minutes if no key is pressed during the intervening time. The AutoPowerOff function can be

disabled by holding the HOLD key pressed down when turning the instrument on: the battery

symbol will blink to remind the user that the instrument can only be turned off by pressing the

<ON/OFF> key.

The automatic turning off function for the HD2114P.2 and HD2134P.2 models is disabled

when external power is used. On the other hand, it cannot be disabled when the batteries are

discharged.

HD2114P/HD2134P - 9 - V2.3

FUNC/ENTER key

During normal measurement this enables the display and logging of the maximum (MAX),

minimum (MIN) and average (AVG) value of the measurements captured by the Pitot tube

connected to the instrument, updating them with the acquisition of new samples. The acquisition

frequency is once a second.

The calculation is performed on the pressure, wind speed or flow rate appearing on the display upon

pressure of the FUNC key: by changing the unit of measurement, the Max, Min and Avg values are

cleared.

The MAX, MIN and AVG measurements remain in the memory until the instrument is on, even

after exiting the calculation function. To reset the previous values and restart with a new

measurement session, press FUNC until the message "FUNC CLR" appears, then use the arrows to

select YES and confirm using ENTER.

In the menu, the ENTER key confirms the current parameter and then goes to the next one. Pressed

together with the UNIT/DuctCalc key, enables the flow rate calculation (please see the UNIT key

description).

Attention: the data captured using the Record function cannot be transferred to the PC.

HOLD/key

It increases the current parameter when used in the menu; when used in measurement mode, it

freezes the measurement in progress, and upon application of pressure on the key, the message

HOLD appears in the upper side of the display. To return to the current measurement, press the

key again.

Upon turning on the instrument, the AutoPowerOff function can be disabled by holding the HOLD

key down (please see the ON-OFF key description).

UNIT key

In measurement mode, it allows selection of the unit of measurement of the pressure, wind speed

and calculated flow rate (shown in the central line of the display). By repeatedly pressing the key,

the different units of measurement are displayed in sequence: Pa, mbar, mmH2O, PSI for the

differential pressure, m/s, km/h, ft/m, mph, knot for the wind speed and l/s, m3/h, cfm for the flow

rate.

This setting changes the information displayed and, for the HD2114P.2 and HD2134P.2 models the

immediate print of data (SERIAL key).

The data recorded using the LOG function (HD2114P.2 and HD2134P.2) keep the chosen unit

of measurement displayed during logging.

The unit of measurement associated with the data sent to the printer or PC through the serial

port using the SERIAL function (HD2114P.2 and HD2134P.2), must be selected before

starting the print function.

HD2114P/HD2134P - 10 - V2.3

°C/°F - ESC key

The measured temperature value is used to compensate the wind speed measurement. When the

temperature probe is connected, the key changes the unit of measurement from degrees Celsius to

Fahrenheit.

If the probe is not present, the compensation temperature must be entered manually: to manually

change the value shown in the display lower line, press °C/°F once. The temperature indicated starts

blinking. While the display is blinking, it is possible to change the compensation temperature in the

-200…+600°C range using the arrows (and ). Confirm using ENTER. The display stops

blinking, and that temperature is used for compensation.

If the temperature probe is not present, to change the unit of measurement between °C and °F, it is

necessary to press twice the °C/°F key.

REL/key

In measurement mode, it displays the difference between the current value and that measured on

pressing the key for both measurements - main and secondary. The REL message appears on the

display; press the key again to return to the current measurement. The REL function is not applied

to manual temperature: if the thermocouple probe is not present, on pressing REL the error

indication ERR appears.

When used in the menu, it decreases the current variable value.

MENU Key

The first menu item is accessed by initially pressing on the MENU key; press ENTER to go to the

following items. To modify the item displayed, use the arrow keys (and ). The current value is

confirmed by pressing the ENTER key and the display moves on to the next parameter. If pressing

ESC the setting is cancelled.

To exit the menu, press the MENU key at any time.

The menu items are listed in this order:

1) Differential pressure resetting: the most sensitive pressure sensors are affected by an error

linked to their position. By rotating the instrument from the horizontal to the vertical

position there is a variation in the measurement of a few Pascals. This is the reason the reset

command was designed for the differential value: leave the inputs of each probe open so that

they detect the same pressure and place the instrument in the position that will be used to

perform the measurement. When entering the menu, the "PRES_REL_TO_ZERO

ENTR_TO_MENU" message appears: press REL to reset the difference or press ENTER to

access other menu items. To guarantee the accuracy of maximum results, do not modify the

instrument's position compared to that used during the resetting.

2) Pressure probe bottom scale: the pressure sensor bottom scale is presented.

3) SECT m2- SECT inch2: this parameter defines a duct's section area for flow rate

calculation. It is expressed in m2or inch2. To change the unit of measurement, press UNIT.

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