Delta OHM DO2003 Manual
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Delta OHM DO2003 Manual

Delta OHM DO2003 Manual

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DO2003
ENGLISH
The quality level of our instruments is the result of a continuous improve of product. This
situation can cause possible differences comparing this manual with the instrument you
bought. We regret in advance for any possible mistake in this manual.
Data, drawings and descriptions included in this manual cannot be juridically in force. We
reserve us the right to modify and correct the manual without prior notice.

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Summary of Contents for Delta OHM DO2003

  • Page 1 DO2003 ENGLISH The quality level of our instruments is the result of a continuous improve of product. This situation can cause possible differences comparing this manual with the instrument you bought. We regret in advance for any possible mistake in this manual.
  • Page 2 HVACR Datalogger DO2003...
  • Page 3 1. Input A for air speed, pressure and Pt100 temperature probes - DIN45326 8-pole connectors. 2. HOLD symbol: appears when you press HOLD. 3. Battery symbol: indicates a low battery level (fixed symbol) or the auto shut-off mode disabled (flashing symbol). 4.

  • Page 4: Introduction

    INTRODUCTION The DO2003 is a datalogger portable unit, especially designed to make measurements in the field of air-conditioning, heating, ventilation, environmental comfort, energy saving, both in private and industrial sectors, thanks to a complete series of dedicated probes. It measures air speed and flow in ducts, pipe or vents with hot-wire, vane or Pitot tube probes;...

  • Page 5: Keyboard Description

    KEYBOARD DESCRIPTION Introduction The DO2003 keyboard has 22 indication LEDs and 12 keys. The keys provide a main function indicated on the key itself, as well as one or two secondary functions indicated just over or under the key. The main function is active when the instrument is in measurement mode, while the secondary functions are activated when the DO2003 is in the programs.
  • Page 6 Channel B LEDs (they refer to the indication of the display lower line) Relative humidity measurement. Absolute humidity measurement. Temperature provided by the RH/temperature probe connected to input B. The unit of measurement is provided either by the °C (Celsius) LED or by the °F (Fahrenheit) Temp LED.
  • Page 7 REL / ESC-Discard Key In measurement mode, it displays (for each channel) the difference between the current value and the value measured when the key was pressed. The REL symbol appears at the bottom of the display; to go back to standard measurement, press the key again. In the programs, it deletes or cancels the active function.
  • Page 8 CALL Max-Min-Avg Key If you press this key repeatedly, you will recall the MAX, MIN and AVG (average) values of data detected by means of the Record function (RCD key). If you press the key again, the instrument switches to standard measurement. The function is active only if some data have been previously recorded and if the Record function is active at that time.
  • Page 9 38.4 (38400 bauds). Press ENTER to confirm. While connecting, the software of the PC linked to the DO2003 (DeltaLog3) will automatically set the same value, that is 38400 bauds. If you are using a program others than DeltaLog3, be sure that the baud rate value is the same both for the instrument and for the PC: the communication will work only in this way.
  • Page 10 The DO2003 provides a function that allows to switch off the instrument in the time between a logging and the other: this function is controlled by the LOG OPT parameter (press PROG 3 times).
  • Page 11 ProbeZERO/ Delete Log Key Before being used, differential pressure gauges and Pitot tube or hot-wire air speed probes need to be set to zero. The key Probe ZERO has this function: for details on how it works, see the chapters concerning the different probes.

  • Page 12: The Probes

    The two DO2003 inputs are identified by an “A” (left input) and by a “B” (right input). Air speed, flow, pressure and temperature probes have to be connected (and are thus recognised) to input A.

  • Page 13: Switching Off The Instrument

    4. S WITCHING OFF THE NSTRUMENT • Press ON/OFF to switch the instrument on or off. If the AutoPowerOff function is active, the instrument can switch off while measuring: press ON/OFF to switch it on again. • The instrument switches automatically off after 8 minutes the keyboard is inactive, except if: a) The instrument is in RCD mode.

  • Page 14: Flow Measurement

    The DO2003 provides some solutions to get a correct measurement even before these elements of disturbance.
  • Page 15 2) Moving Average The Duct Calc function provides a space average of acquired values in order to compensate speed differences between a point and another in the pipe section. There is also another cause of error due to stream variations over the time: actually, a stream is not steady but, on the contrary, it can decrease or increase even in the same point.

  • Page 16: Sicram Module

    QUIPPED WITH ODULE AP471S… probes have to be connected to the DO2003 A input. The probes AP471 S1 and AP471 S3 measure air flows up to 40m/s; the AP471 S2 and AP471 S4 probes are fitted with an omnidirectional sensor allowing measurement of speeds up to 5m/s in any direction of the air flow incident on the probe.

  • Page 17: Operation

    LINE OF STREAM DIRECTION SPEED SENSOR COMPENSATION SENSOR AMBIENT TEMPERATURE SENSOR CYLINDRICAL SLEEVE Place the head of the probe in the airstream to be measured and press PROBE ZERO. Any fault (drifts) related to speed and flow instant values will be cleared. PERATION Extend the telescopic shaft as much as necessary, taking care that the cable passes through the handle without any problem.

  • Page 18: Probe Care And Maintenance

    ROBE ARE AND AINTENANCE The speed sensor of AP471 S… probes is heated up and, in presence of vapours or gases, it might cause a fire or an explosion. Avoid using these probes if inflammable gases are available. Check that no gas leak or explosive product vapour be present in the environment where measurements have to be carried out.

  • Page 19: Dimensions

    IMENSIONS 200 min - 880 max Ø8 Ø13 AP471 S1 Ø8 Ø13 AP471 S2 200 min 880 max Ø8 Ø13 AP471 S3...
  • Page 20 ∅=120 AP471 S4...

  • Page 21: Ap472 S1 - Ap472 S2 - Ap472 S4 Vane Probes For Air Speed Measurement Equipped With Sicram Module

    AP472 S1 - AP472 S2 - AP472 S4 SICRAM M ROBES FOR PEED EASUREMENT QUIPPED WITH ODULE AP472 S1, S2 and S4 vane probes are used to measure speed and flow of an incident airstream. AP472 S1, AP472 S4LT and AP472 S4HT probes can measure temperature also by means of a thermocouple type K.

  • Page 22: Probe Care And Maintenance

    The probe has to stand orthogonal with respect to the flow and it shall not be inclined: The probe is correctly positioned in the airstream when the measured value is the highest one. Carry out measurements pursuant to the indications provided in the first paragraphs of this chapter. ROBE ARE AND AINTENANCE...

  • Page 23: Dimensions

    IMENSIONS AP472 S1 AP472 S2 AP472 S4 Unscrew the handle (3) holding the probe body still in the point (1).
  • Page 24 The AP472 S1 - AP472 S2 probes, in addition to the telescopic rod with swivel head can use the rigid telescopic rod ∅16 mm. Unscrew the handle (3) holding the probe body still in the point (1). Screw the rod end AP471S1.23.6 (5) on the screw (2). You can add more telescopic rods AP471S1.23.6.

  • Page 25: Ap473 S1

    AP473 S1 … AP473 S4 SICRAM M ITOT ROBES FOR THE EASUREMENT OF PEED QUIPPED WITH ODULE The Pitot tube is an easy method to measure air speed in hard-to-reach positions, such as air ducts, and in applications where air speed and temperature are very high. As no air passes through it, the Pitot tube is particularly suitable for measurements in hostile environments.

  • Page 26: Ap473 S1

    AP473 S1 … AP473 S4 M ODULES AP473 S1, …, AP473 S4 modules work as interfaces between the Pitot tube and the DO2003. Each module can be connected to any Pitot tube with the related thermocouple type K, where provided.

  • Page 27: Dimensions Of Pitot Tubes

    The graph below shows the error in case of misalignment: +0.6 +0.4 +0.2 -0.2 -0.4 -0.6 -0.8 -1.0 -1.2 15° 10° 5° 5° 10° 15° ANGLE The axis of abscissas shows the rotation angle around the vertical axis with respect to the flow direction (yawing), the ordinate axis shows the % error on Pv differential pressure measurement.

  • Page 28: Temperature Measurement

    The Relative Humidity probe has to be connected to input B of the instrument. Humidity probes provided for a DO2003 are RH/ temperature ones: the humidity sensor is capacitive type, while the temperature one is a Pt100. The probes are provided with an 8-pole DIN connector module having a microprocessor circuit with a permanent (non-volatile) memory to store calibration data.

  • Page 29: Humidity And Quality Indices (Comfort Indices)

    For this reason, different valuation systems have been introduced to get the formulation of the climate quality indices (Comfort Indices) . The DO2003 provides two indices: Discomfort Index (DI) and Net Index (ET) . These two indices are viewed if the instrument is connected to a RH/temperature probe (such as, for example, a HP472AC).

  • Page 30: Pressure Measurement

    RESSURE EASUREMENT The DO2003 allows to carry out measurements of barometric pressure (PP472 module), as well as of differential pressure (PP473 S1 … PP473 S8 modules). The pressure modules have to be connected to input A of the instrument. Press UNIT A to change the unit of measurement of the displayed instant value.

  • Page 31: Warnings And Operating Instructions

    WARNINGS AND OPERATING INSTRUCTIONS 1. Do not expose the probes to gases or liquids that could corrode the probe sensor or the probe itself. Clean the probe carefully after each measurement. 2. Do not bend the probe connectors, forcing them upward or downward 3.

  • Page 32: Instrument Signals And Fault Conditions

    INSTRUMENT SIGNALS AND FAULT CONDITIONS The following table lists all indications displayed by the instrument in different operating situations. This message displayed at the probe input, indicates that the probe has been disconnected. - - - No probe is connected to the input. Measurement overflow: the probe is measuring a value exceeding the measuring range.

  • Page 33: Low Battery Warning And Battery Replacement

    LOW BATTERY WARNING AND BATTERY REPLACEMENT When the batteries are running low, the symbol appears on display. In this case, batteries should be replaced as soon as possible. If you are still using the instrument and the battery voltage keeps falling, this means that the instrument is no longer able to ensure a correct measurement When AutoPowerOff is deactivated, the symbol flashes about once per second.
  • Page 34 NSTRUMENT STORAGE Instrument storage conditions: • Temperature: -20...+60°C. • Humidity: less than 90% R.H., no condensation. • Do not store the instrument in places where: 1. Humidity is high. 2. The instrument may be exposed to direct sunlight. 3. The instrument may be exposed to a high temperature source. 4.

  • Page 35: Rs232C Serial Interface

    Available baud rates are: 38400, 19200, 9600, 4800, 2400, 1200, 300. All other transmission parameters are fixed. DO2003 is equipped with a whole command set and a data request set, to be sent to a PC through a RS232C serial port.
  • Page 36 Command Description Notes Stop logging ESC key Stop dump Command characters are exclusively upper case characters; once a correct command is entered, the instrument responds with “&”; when any wrong combination of characters is entered, the instrument responds with “?”. The instrument response string contains “Carriage Return/Line- Feed”...

  • Page 37: Storing And Transferring Data To A Personal Computer

    STORING AND TRANSFERRING DATA TO A PERSONAL COMPUTER DO2003 datalogger can be connected to a personal computer through a RS232C serial port and exchange data and information through DeltaLog3 software running in a Window operating environment, or through HyperTerminal. DO2003 can send in real time input measured values directly to a PC, through the PRINT function;...

  • Page 38: How To Connect Do2003 To A Pc Running Windows Operating System

    HOW TO CONNECT DO2003 TO A PC RUNNING WINDOWS OPERATING SYSTEM The present chapter shows in details how to transfer data from DO2003 to a PC running Windows operating system, using HyperTerminal program; how to connect the instrument to the laptop (PC) and how to set parameters for transmission on your PC and on DO2003.
  • Page 39 B) Communication name: • In "Connection description” window, digit a name for the connection you need to activate and then choose an icon (for any future connection, you will be able to activate directly the icon chosen for HYPERTRM.EXE, automatically using all settings saved through the program icon).
  • Page 40 C) Communication settings: • Select FILE from the HyperTerminal window (one click). • Select PROPERTIES from the pull-down menu (one click) and the “Properties” window will appear. • Select the “Connect to” folder and configure the folder options settings: for the “Connect” option, choose "directly to COM1"...
  • Page 41 FLOW CONTROL: Xon / Xoff, OK to confirm the port settings (one click). Warning: in order for the communication between DO2003 and your PC to work properly, the “Bit per second” datum (transmission speed) on HyperTerminal, must be set at the same value as the instrument Baud rate;...
  • Page 42 Still working inside the “Properties” window: • Select the “Settings” folder. • On the “Settings” folder, select “TTY” for the “Emulation” folder option • Set “Backscroll Buffer” at 500 • OK to confirm the configured “Options” (one click)
  • Page 43 D) To set the correct type of character: • In HyperTerminal window, select DISPLAY (one click). • Select CHARACTER (one click) from the pull-down menu, and the character selection window will appear; configure: Terminal . • Select Style: Normal • Select character Size: 9 or 11 •...
  • Page 44 E) To store data received from an instrument: • Select TRANSFER (one click) from the HyperTerminal window. • Select CAPTURE TEXT (one click) from the pull-down menu, and on the appeared window select the file where all data received from the instrument will be stored. •...
  • Page 45 F) To receive data from the instrument: • Select CALL (one click) from the HyperTerminal window. • Select CONNECT (or CALL, depending on the operating system in use) from the pull-down menu. In this way, you will be able to receive on the computer display the data received from the instrument.
  • Page 46 H) To end receiving data from an instrument: • Select TRANSFER (one click) from the Hyper Terminal window. • Select CAPTURE TEXT (one click) from the pull-down menu. • Select END (one click) from the pull-down submenu. At this point the data receiving operation has ended and the file stored in the computer can be edited by using a text editor program (NotePad, WordPad,…) or Excel.
  • Page 47 DO2003 TECHNICAL SPECIFICATIONS Housing Dimensions (Length x Width x Height) 210x72x40mm Weight 320g (batteries included) Materials Display Double LCD 12.5mm EMC Standards Degree of protection IP64 Safety EN61000-4-2, EN61010-1 level 3 Electrostatic discharges EN61000-4-2 level 3 Fast electric transients EN61000-4-4 level 3,...
  • Page 48 ECHNICAL DATA OF INSTRUMENT PROBES AND MODULES Probes for air speed measurement Hot-wire probe: AP471 S1 - AP471 S2 - AP471 S3 - AP471 S4 AP471 S1 - AP471 S3 AP471 S2 AP471 S4 Type of measurements Air speed, calculated flow, air temperature Type of sensor Speed NTC Thermistor sensor...
  • Page 49 Vane probe: AP472 S1 - AP472 S2 - AP472 S4… AP472 S1 AP472 S2 AP472 S4… Air speed, Type of Air speed, calculated flow, measurements calculated flow air temperature Diameter 100 mm 60 mm 16 mm Type of measurement Speed (m/s) Vane Vane Vane...
  • Page 50 Pitot tube probe: AP473 S1 - AP473 S2 - AP473 S3 - AP473 S4 AP473 S1 AP473 S2 AP473 S3 AP473 S4 Type of measurements Air speed, calculated flow, differential pressure, air temperature Measuring range 10 mbar 20mbar 50mbar 100mbar Differential pressure Speed (*) 2 …...
  • Page 51 Temperature probes with Pt100 sensor Measuring range -196°C…+500°C Resolution 0.1°C (up to 199.9°C) / 1°C (from 200°C on) Temperature drift at 20°C 0.003%/°C Model Type Application range Accuracy ±0.25°C (-196°C…+350°C) Immersion -196°C…+500°C TP472I ±0.4°C (+350°C…+500°C) ±0.25°C (-50°C…+350°C) TP472I.0 Immersion -50°C…+400°C ±0.4°C (+350°C…+400°C) ±0.25°C (-50°C…+350°C) Penetration...
  • Page 52 Relative humidity and temperature probes Technical specifications for temperature and humidity probes modules Relative humidity Sensor Capacitive Probe temperature operating range -40°C…+150°C Measuring range 0 … 100%.R.H Accuracy ±2%RH in the range 10… to 90%RH ±2.5%RH in the remaining field Resolution 0.1%RH Temperature drift at 20°C...
  • Page 53 Pressure probes PP472 Module – Barometric pressure measurement Measuring range 600 … 1100mbar Resolution 1mbar Accuracy at 20°C ±1mbar Temperature range -10 … +60°C Fluid in contact with probe membrane dry and non-corrosive air and gases PP473 S1,…, PP473 S8 Modules – Differential pressure measurement Measuring range 10mbar (S1), 20mbar (S2), 50mbar (S3), 100mbar (S4), 200mbar (S5), 500mbar (S6),...
  • Page 54 ORDER CODES DO 2003 The kit is composed by the instrument, 4 1.5V alkaline batteries, instruction manual, carrying case and DeltaLog3 software. Probes and cables must be ordered separately. 9CPRS232 Sub D 9-pole female/female connecting cable for RS232C (null modem) DeltaLog3 (version 4.0 and following).
  • Page 55 AP473 S3 Pitot tube probe, differential pressure 50mbar f.s. Air speed from 2 to 90m/s. Pitot tube has to be ordered separately. AP473 S4 Pitot tube probe, differential pressure 100mbar f.s. Air speed from 2 to 130m/s. Pitot tube has to be ordered separately. Connecting cable between module AP473S…...
  • Page 56 HP478ACR Combined RH% and temperature probe. Stainless steel probe stem Ø14x130 mm. Connecting cable length: 5 metres. The combined humidity and temperature probes with last letter of the code “R” are compatible with the DO2003 instruments having serial number from 09011630 (rev. 2.0 dated 03/07/2009).
  • Page 57 10μm sintered complete protection made of PFTE for probes Ø 14 mm. Stainless steel and Pocan grid protection for probes Ø 14 mm. PRESSURE PROBES PP472 Barometric probe, measuring range 600…1100mbar. PP473 S1 Differential pressure probe, full scale 10mbar PP473 S2 Differential pressure probe, full scale 20mbar PP473 S3 Differential pressure probe, full scale 50mbar...

  • Page 59: Table Of Contents

    The Logging function ..............................37 Memory Clear ................................37 The PRINT function ..............................37 HOW TO CONNECT DO2003 TO A PC RUNNING WINDOWS OPERATING SYSTEM ......38 Hardware connection ..............................38 Software connection to WINDOWS 95, 98, NT, ME, 2000 and Xp ................38...
  • Page 60 DO2003 TECHNICAL SPECIFICATIONS ........................ 47 Technical data of instrument probes and modules ....................... 48 ORDER CODES ................................54...

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