TSI Instruments DP-CALC 5825 Bedienungsanleitung

Ventilation Testing

DP-CALCTM

Micromanometer

Model 5825

Operation and Service Manual

ENERGY AND COMFORT

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iii

CONTENTS

CHAPTER 1 UNPACKING AND PARTS IDENTIFICATION ............1

CHAPTER 2 SETTING-UP.................................................................3

Supplying Power to the Model 5825 DP-CALC Micromanometer...3

Installing the Batteries...............................................................3

Using the Optional AC Adapter.................................................3

Connecting to a Computer..............................................................3

CHAPTER 3 OPERATION.................................................................5

Keypad Functions...........................................................................5

Common Terms..............................................................................5

Menus.............................................................................................6

DISPLAY SETUP.................................................................................6

PRESSURE ZERO...............................................................................6

SETTINGS.........................................................................................6

FLOW SET UP....................................................................................6

ACTUAL/STANDARD SETUP................................................................6

DATA LOGGING .................................................................................7

Measurements...........................................................................7

Log Mode/Log Settings .............................................................7

Delete Data................................................................................7

% Memory .................................................................................7

LogDat2TM Downloading Software..................................................7

CHAPTER 4 MAINTENANCE............................................................9

Recalibration...................................................................................9

Cases..............................................................................................9

Storage ...........................................................................................9

CHAPTER 5 TROUBLESHOOTING................................................11

APPENDIX A SPECIFICATIONS.....................................................13

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Chapter 1

Unpacking and Parts Identification

Carefully unpack the instrument and accessories from the shipping

container. Check the individual parts against the list of components below. If

anything is missing or damaged, notify TSI immediately.

1. Carrying case

2. Instrument

3. Pressure tubing

4. Static pressure tip

5. USB cable

6. CD-ROM with downloading software

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Chapter 2

Setting-up

Supplying Power to the Model 5825 DP-CALC Micromanometer

The Model 5825 is powered with four size AA batteries.

Installing the Batteries

Insert four AA batteries as indicated by the diagram located on the

inside of the battery compartment. The Model 5825 is designed to

operate with either alkaline or NiMH rechargeable batteries, although it

will not recharge NiMH batteries. Battery life will be shorter if NiMH

batteries are used. Carbon-zinc batteries are not recommended because

of the danger of battery acid leakage.

Using the Optional AC Adapter

When using the AC adapter, the batteries (if installed) will be bypassed.

Be sure to provide the correct voltage and frequency, which is marked

on the back of the AC adapter. The AC adapter will not recharge the

batteries.

Connecting to a Computer

Use the Computer Interface USB Cable to connect the instrument to a

computer. Connect the end labeled “COMPUTER” to the computer USB

port and the other end to the data port of the Model 5825.

For information on how to download stored data see Chapter 3 LogDat2™

Downloading Software.

Caution: This symbol is used to indicate that the data port

of the Model 5825 is not intended for connection to a

public telecommunications network. Connect the USB

data port only to another USB port.

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Chapter 3

Operation

Keypad Functions

ON/OFF Key Press to turn the Model 5825 on and off. During

the power up sequence the display will show the

following: Model Number, Serial Number,

Software Revision and Last Date Calibrated.

Arrow (



) Keys Press to scroll through choices while setting a

parameter.



(Enter) Key Press to accept a value or condition.

Arrow (





) and

Menu Soft Keys Press arrow keys to change choices while setting a

parameter. Press the Menu soft key to select the

Menu selections, which are Display Setup,

Pressure Zero, Settings, Flow Setup, Actual/Std

Set up, Data Logging, and Calibration.

Common Terms

In this manual there are several terms that are used in different places. The

following is a brief explanation of the meanings of those terms.

Sample Consists of all of the measurement parameters

stored at the same time.

Test ID A group of samples. The statistics (average,

minimum, maximum, and count) are calculated for

each test ID. The maximum number of test IDs is

100.

Time Constant The time constant is an averaging period. It is used

to dampen the display. If you are experiencing

fluctuating flows, a longer time constant will slow

down those fluctuations. The display will update

every second, but the displayed reading will be the

average over the last time constant period. For

example, if the time constant is 10 seconds, the

display will update every second, but the displayed

reading will be the average from the last 10

seconds. This is also referred to as a “moving

average”.

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6 Chapter 3

Log Interval The logging interval is a frequency period that the

instrument will log readings. For example, if the

logging interval is set to 30 minutes, each sample

will be the average of the last 30 minutes.

Menus

DISPLAY SETUP

Display setup menu is where you will setup the desired parameters to be

displayed on the running screen. With a parameter highlighted you can then

use the ON soft key to have it show up on the running screen or select the

OFF soft key to turn off the parameter. Use PRIMARY soft key to have a

parameter show up on the running screen in a larger display. Only one

parameter can be selected as a primary, and up to 2 secondary parameters

can be selected at one time.

PRESSURE ZERO

To zero the pressure reading, select the Pressure Zero menu. The instrument

will indicate if the pressure zero was successful.

SETTINGS

Settings menu is where you can set the general settings. These include

Language, Beeper, Select Units, Time Constant, Contrast, Set Time, Set

Date, Time Format, Date Format, Number Format, Backlight and Auto Off.

Use the or soft keys to scroll through the settings for each option and

use the



key to accept settings.

FLOW SET UP

In Flow Setup mode, there are four types: Round Duct, Rectangle Duct, Duct

Area, and K-Factor. Use the or soft keys to scroll through the types and

then press the



key to accept the desired type. To change the setting,

highlight the Enter Settings option and press the



key.

NOTE: K-Factors are intended for use with diffusers with pressure taps

and a manufacturer-supplied K factor.

ACTUAL/STANDARD SETUP

Choose Actual/Standard measurements and parameters in the Act/Std Setup

menu. Within this menu, the user can also select Standard Temperature,

Standard Pressure and a source for the actual temperature. The actual

barometric pressure must be entered to convert air velocity and volume

measurements to actual conditions.

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Operation 7

DATA LOGGING

Measurements

Measurements to be logged are independent of measurements on the

display, and must therefore be selected under DATA LOGGING 

Measurements.

Log Mode/Log Settings

You can set Log Mode to Manual and Auto-save.

•Manual mode does not automatically save data, but instead prompts

the user to save a sample.

•In Auto-save mode, the user manually takes samples that are

automatically logged.

•The Log Interval setting is active during Auto-save mode

Delete Data

Use this to delete all data, delete test or delete sample.

% Memory

This option displays the memory available. Delete All, under Delete

Data, will clear memory and reset the memory available.

LogDat2TM Downloading Software

The Model 5825 comes with special software called LogDat2 Downloading

Software, which is designed to provide you with maximum flexibility and

power. To install this software on your computer, follow the instructions on

the label of the LogDat2 CD-ROM.

To download data from the Model 5825, connect the supplied computer

interface USB cable to the Model 5825 and to a computer USB port. Then

run the LogDat2 downloading software. Within the LogDat2 software, either

select the tests to be downloaded or double-click on a test to open it.

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Chapter 5

Troubleshooting

Table 5-1 lists the symptoms, possible causes, and recommended solutions

for common problems encountered with the Model 5825. If your symptom is

not listed, or if none of the solutions solves your problem, please contact

TSI.

Table 5-1: Troubleshooting the Model 5825

Symptom

Possible Causes

Corrective Action

No Display

Unit not turned on

Switch unit on.

Low or dead batteries

Replace batteries or plug

in AC adapter.

Dirty battery contacts

Clean the battery

contacts.

Reading fluctuates

/ unstable

Fluctuating flow

Reposition probe in

less-turbulent flow or use

longer time constant.

No response to

keypad

Keypad locked out

Unlock keypad by

pressing  keys

simultaneously.

Instrument Error

message appears

Memory is full

Download data if desired,

then DELETE ALL

memory.

Fault in instrument

Factory service required

on instrument.

WARNING!

The pressure sensor is protected from damage up to 7 psi (48 kPa or

360 mmHg). At higher pressure it can burst!

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Appendix A

Specifications

Specifications are subject to change without notice.

Static / Differential Pressure:

Range1: -15 to +15 in. H2O (-28.0 to +28.0 mm Hg, -3735 to

+3735 Pa)

Accuracy: ±1% of reading ±0.005 in. H2O (±0.01 mm Hg, ±1 Pa)

Resolution: 0.001 in. H2O (0.1 Pa, 0.01 mm Hg)

Velocity From a Pitot Tube:

Range2: 250 to 15500 ft/min (1.27 to 78.7 m/s)

Accuracy3: ±1.5% at 2000 ft/min (10.16 m/s)

Resolution: 1 ft/min (0.1 m/s)

Duct Size:

Range: 1 to 500 inches in increments of 0.1 in.

(2.5 to 1270 cm in increments of 0.1 cm)

Volumetric Flow Rate:

Range: Actual range is a function of actual velocity, pressure, duct

size, and K factor

Instrument Temperature Range:

Operating : 40 to 113°F (5 to 45°C)

Storage: -4 to 140°F (-20 to 60°C)

Instrument Operating Conditions:

Altitude up to 4000 meters

Relative humidity up to 80% RH, non-condensing

Pollution degree 1 in accordance with IEC 664

Transient over voltage category II

Data Storage Capabilities:

Range: 12,700+ samples and 100 test IDs

Logging Interval:

Intervals: 1 second to 1 hour

Time Constant:

Intervals: User selectable

External Meter Dimensions:

3.3 in. ×7.0 in. ×1.8 in. (8.4 cm ×17.8 cm ×4.4 cm)

Meter Weight:

Weight with batteries: 0.6 lbs (0.27 kg)

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14 Appendix A

Power Requirements:

Four AA-size batteries (included) or AC adapter (optional) 9 VDC, 300 mA,

4-18 watts (input voltage and frequency vary depending on which adapter is

used)

1Overpressure range = 7 psi (190 in. H2O, 360 mmHg, 48 kPa).

2Pressure velocity measurements are not recommended below 1,000 ft/min (5 m/s) and are best

suited to velocities over 2000 ft/min. Range can vary depending on barometric pressure.

3Accuracy is a function of converting pressure to velocity. Conversion accuracy improves when

actual pressure values increase.

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