Page 3 - ENGLISH
67 DO 9704 PRESSURE AND TEMPERATURE - DATA-LOGGER ENGLISH
Page 4 - key. When enabled, this key increases the displayed parameter.; 3 Multiplication channel for channel A 10
1 Input A, DIN 8-pole connector for pressure, flow rate or temperature.2 Display.3 Negative symbol input A.4 HOLD symbol.5 H symbol: flashes during RECORD function, permanently lit if the battery is running low. 6 Negative symbol input B.7 The display shows the Mean values.8 REL symbol, indicates th...
Page 5 - INTRODUCTION
INTRODUCTION The DELTA OHM DO 9704 pressure gauge and data logger has been designed for detecting pres-sure, flow rate and temperature, physical values which are very important in industrial and chemicalprocesses.The instrument has two inputs, A and B, and automatically recognises the probes connect...
Page 6 - HOLD; The
ENGLISH 70 ON/OFF HOLD + ON/OFF HOLD O N / O F F k e y . P r e s s t h i s k e yrepeatedly to switch the instru-ment on or off.T h e i n s t r u m e n t h a s a c u t - o u tsystem (Auto Power Off) whichswitches off automatically afterabout 8 minutes. HOLD and ON/OFF key. If thisk e y i s p r e s s ...
Page 7 - KEY; REL
REL UNIT A UNIT B ENGLISH 71 KEY SIMBOLS LIT BESIDES THE NUMBERS FUNCTION DESCRIPTION T h e R E L k e y a l l o w s y o u t odisplay or store relative values orsend them immediately onto theserial line.The values for comparison arestored at the precise moment inwhich the key is pressed.D a t a m a y...
Page 8 - SERIAL OUTPUT
A-B SERIAL OUTPUT ENGLISH 72 KEY SIMBOLS LIT BESIDES THE NUMBERS FUNCTION DESCRIPTION Pressing A-B obtains the differen-ce between the values indicatedfor input A minus the values ofinput B. The full-scale value oft h e t w o p r o b e s m u s t b e t h esame and they must be opera-ting with the sam...
Page 9 - When the; BAUD
ENGLISH 73 KEY SIMBOLS LIT BESIDES THE NUMBERS FUNCTION DESCRIPTION P0+ + + There is therefore a limit on theminimum time that may be set asa function of the Baud Rate cho-sen: - P0 -When ENTER is pressed with P0o n t h e d i s p l a y , t h e i n s t r u m e n treturns to normal operating modewitho...
Page 11 - storage
ENGLISH 75 KEY SIMBOLS LIT BESIDES THE NUMBERS FUNCTION DESCRIPTION W h e n t h e s k e y ( M E M O R Y CLEAR sub-function) is pressedwith P1 on the display, all the sto-red data are erased.The instrument will display them e s s a g e P 1 . A t t h e e n d t h einstrument automatically returnsto nor...
Page 12 - RECORDING INTERVAL; hours
ENGLISH 76 KEY SIMBOLS LIT BESIDES THE NUMBERS FUNCTION DESCRIPTION After defining the storage time,press ENTER to return to normaloperation, or press the PROG keyto move on to step P3. In the storage function the instru-ment is able to store more than30,000 acquisitions.The indicative time taken to...
Page 13 - and
ENGLISH 77 KEY SIMBOLS LIT BESIDES THE NUMBERS FUNCTION DESCRIPTION P3+ = set Baud Rate P4+ = set year - P3 -When ENTER is pressed with P3on the display, the Baud Rate ofthe RS 232C serial transmissionmay be modified.The s and t keys are used to select the desired value.The possible values are: 19.2...
Page 17 - 1 W i t h a s e t s t o r a g e i n t e r v a l
ENGLISH 81 KEY SIMBOLS LIT BESIDES THE NUMBERS FUNCTION DESCRIPTION P10+ = select type of printing automatically. W h e n t h e O N / O F F k e y i spressed, storage is interruptedand the instrument switchesoff. 01 W i t h a s e t s t o r a g e i n t e r v a l h i g h e r t h a n 1 m i n u t e , t h...
Page 18 - DATA CALL; key. When enabled it increases
ENGLISH 82 KEY SIMBOLS LIT BESIDES THE NUMBERS FUNCTION DESCRIPTION DATA CALL P11+ - P11 -W h e n E N T E R i s p r e s s e d w i t hP11 on the display, the instrumententers the program for calibratingthe instrument. DATA CALL key (Mean - Max -Min).W h e n t h e D A T A C A L L k e y i sp r e s s e ...
Page 20 - ENTER; When pressed repeatedly, the
ENGLISH 84 KEY SIMBOLS LIT BESIDES THE NUMBERS FUNCTION DESCRIPTION ENTER with RCD During programming this key isused both to enter the desiredprogram and to confirm the valueof the parameter considered. When pressed repeatedly, the t key, sub-function RCD, starts andstops the record function, which...
Page 21 - key. During programming or
ENGLISH 85 KEY SIMBOLS LIT BESIDES THE NUMBERS FUNCTION DESCRIPTION sh at a frequency of 2 Hz whenthe RCD key is pressed, it meansthat the RCD function has storedmore than 30,000 acquisitionsand cannot continue any further.A f t e r h a v i n g t a k e n n o t e o f t h emax. min. and mean values ca...
Page 22 - PROBE CONNECTION; mm. coupling to which will be connected a; HOW TO MEASURE; allowing you to check that all the display segments are working.
PROBE CONNECTION One or two pressure probes, one or two temperature probes may be connected to the DO 9704pressure and temperature gauge - data logger. The pressure probes of the TP 704 series have a1/4” BSP male threaded coupling and must be screwed into the fitting in which the pressure is to beme...
Page 23 - ments. In this case press the ON/OFF key to switch it on again.
measuring unit. * Press the Unit A or B key to select the temperature measuring unit in °C or °F. 4. Switching off the instrument. * The instrument is switched off by pressing the ON/OFF key.* Because of the Auto Power Off function the instrument may switch itself off during measure- ments. In this ...
Page 24 - the probe clean the probe carefully after use.
TEMPERATURE MEASUREMENT Immersion temperature measurements are performed by introducing the probe to a minimumdepth of 60 mm into the liquid in which you want to take the measurement; the sensor is housed inthe end of the probe. To take measurements in air, the probe must be pointed in a transverse ...
Page 25 - INSTRUMENT SIGNALS AND MALFUNCTIONS; Err; are not of the same type.; FUL
their low heat conductivity. 12. The probes are not insulated from their external casing. Be very careful not to come into contact with live parts (above 48V) as this could be dangerous not only for theinstrument but also for the operator, who could suffer an electric shock. 13. Avoid taking measure...
Page 26 - LOW BATTERY WARNING AND BATTERY REPLACEMENT; The symbol
LOW BATTERY WARNING AND BATTERY REPLACEMENT When the battery has run down and its voltage has reached the limit value of 7.2 Volts, the symbol H appears permanently on the display and an alarm beep sounds at regular intervals of about 15 seconds. In these conditions the battery should be replaced as...
Page 27 - PIN
FAULTY OPERATION WHEN SWITCHING ON AFTER CHANGING THEBATTERY Repeat the battery changing procedure, waiting for a few minutes to allow the circuit condensercapacities to be completely discharged, then insert the battery. WARNING ON USE OF THE BATTERIES * If the instrument is not to be used for a lon...
Page 31 - EXAMPLE OF A REPORT PRINTED BY THE INSTRUMENT
EXAMPLE OF A REPORT PRINTED BY THE INSTRUMENT ENGLISH 95
Page 33 - Turn the switch on the CP RS 232C cable to COMPUTER position.
INSTRUCTIONS FOR CONNECTING DELTA OHM INSTRUMENTS TO A PCWITH WINDOWS OPERATIVE SYSTEM Hardware connection:1. The measuring instrument must be switched off.2. C o n n e c t t h e s e r i a l g a t e o f t h e m e a s u r i n g i n s t r u m e n t t o a f r e e s e r i a l g a t e o n t h e P C (COM1...
Page 36 - F) If you want to save this terminal setting:
F) If you want to save this terminal setting: select FILE from the terminal window (one click)select SAVE AS from the pull-down menu and the SAVE FILE AS window will appear (oneclick)type the name of the terminal setting file (max. 8 characters) on the line providedOK to confirm and save the setting...
Page 39 - Software connection with WINDOWS 95.; B) Name of the communication
Software connection with WINDOWS 95. A) After starting WINDOWS 95, select START, PROGRAMS, ACCESSORIES, HYPERTERMINAL. Run HYPERTRM (double click) B) Name of the communication In the window “Description of connection”, give a name to the communication that you want toactivate and choose an icon (in ...
Page 44 - E) To receive and store data from an instrument:
E) To receive and store data from an instrument: - select CALL from the Hyper Terminal window (one click)- select CONNECT from the pull-down menu- In this way it is possible to receive the characters from the instrument on the monitor ENGLISH 108
Page 45 - F) To receive and store data from an instrument:
F) To receive and store data from an instrument: - select TRANSFER from the Hyper Terminal window (one click)- select CAPTURE TEXT from the menu (one click) and the window will appear where you have to set the name of the file in which to store the data received from instrument - type the name of th...
Page 46 - G) To end receiving data from an instrument:
G) To end receiving data from an instrument: select TRANSFER from the Hyper Terminal window (one click)select CAPTURE TEXT from the menu (one click)select END from the pull-down sub-menu (one click) At this point data reception from the instrument is ended and the file stored in the computer can beu...
Page 47 - CALIBRATING THE INSTRUMENT DO 9704; Using the; Instrument
CALIBRATING THE INSTRUMENT DO 9704 Apply a voltage of 465.5 mVdc between pin 6 (GND) and pin 1 (OUT) of the DIN 8-pole connectorat input A. Select step 11 with the PROG key; press the ENTER key, the display shows Using the s and t keys, make the value shown on the display coincide with 196.0. Confir...
Page 48 - FLOW RATE MEASUREMENTS; resistance between pin 3 and pin 7.; LT configurable
FLOW RATE MEASUREMENTS A selection resistance sets the conversion factor of the connected turbine.The instrument automatically recognises 5 fixed flow rate values plus a sixth which may be configu-red by the user. *The instrument can read a reduced measuring range, it has the same selection resistan...
Page 49 - Probe connection diagram
Connect the probe to the turbine that you want to configure and switch on the instrument; the mes-sage PPL will appear on the display corresponding to input A or B. Press the PROG key, P0 will appear on the display; using the s and t keys, select the input to which the turbine probe is connected; th...
Page 50 - GND; PPL Turbine; Probe for measuring flow rate with impulses
ENGLISH 114 6 1 4 7 3 5 8 2 +5V 7 GND 6 OUT 2.375mV/ ° C 1 -5V 8 6 1 4 7 3 5 8 2 6 1 4 7 3 5 8 2 N.C. 1 N.C. 5 7 3 4 6 N.C. R. Select. 2 N.C. 8 * 500mV F. S. Pressure 1 N.C. 4 N.C. 5 GND 6 -5V 8 +5V 7 Probe series TP 704, TP 705 Turbine probe for measuring flow rate Active probe Pt100 series TP 870 ...
Page 51 - CLASSIFICATION OF PRESSURE MEASUREMENTS; Differential pressure D
CLASSIFICATION OF PRESSURE MEASUREMENTS Pressure measurements are relative and therefore refer to a reference pressure. There are fourtypes of pressure measurement which enable the reference pressure to be defined immediately.- Absolute pressure (A) – Pressure with respect to absolute zero, the idea...
Page 52 - CONVERSION FACTORS AND TABLES
CONVERSION FACTORS AND TABLES °F-32 Temperature: °C = ___________ ; °F = (1.8 x °C) + 32 1.8 Pressure measurement: mm = 0.03937 in in = 25.4 mm cm = 0.3937 in in = 2.54 cm m = 39.37 in in = 2.54 x 10 –2 m f force p = ___________ = pressure = ___________ m 2 surface According to the international sys...
Page 53 - inch of H
psi = Pa x (1.4503 x 10 –4 ) Pa = psi x 6895 psi = kPa x (1.4503 x 10 –1 ) kPa = psi x 6.895 1 atm = 1,013 x 10 5 Pa 1 bar = 1,000 x 10 5 Pa 1 dyne/cm 2 = 1,000 x 10 –1 Pa 1 inch of Hg (0°C) = 3,386 x 10 3 Pa 1 inch of H 2 O (4°C) = 2,491 x 10 2 Pa 1 Kg/m 2 = 9,806 Pa 1 pound/inch 2 (psi) = 6,895 x ...
Page 55 - INSTRUMENT TECHNICAL DATA; INSTRUMENT PRECISION; Pressure measurements
INSTRUMENT TECHNICAL DATA Inputs / type of measurement 2 / pressure, flow rate or temperature Connector DIN 45326 8-pole No. conversions per second 2 Working temperature -5...+50°C Working relative humidity 0...90% R.H. (no condensation) Serial output RS 232C 300...19200 Baud (galvanically insulated...
Page 58 - ORDER CODES
ORDER CODES DO 9704 K Pressure gauge - thermometer - data logger kit composed of a diplomatic carryingcase, instrument DO 9704, series of fittings, 1 CPA 8-pole din 45326 connectingcable between instrument and probe, manual, 9 Vdc alkaline battery. NOTE: The pressure or temperature probes must be or...
Page 59 - GUARANTEE
TP 705-1BD Pressure probe, full scale 1 bar relative. TP 705-2BD Pressure probe, full scale 2 bar relative. TP 705-BARO Pressure probe, full scale 1 bar absolute barometric. GUARANTEE This instrument is strictly inspected before being sold. However if there should be any defect due tomanufacture and...
Page 60 - EXAMPLES OF USE OF THE KEYBOARD; Switches the instrument on or off.; Display blocked
EXAMPLES OF USE OF THE KEYBOARD 1. Switches the instrument on or off. 2. Blocks or resets updating of the display. Display blocked Display reset 3. Allows the display, storage or sending of the relative values immediately onto theserial line. Display or relative values Display of absolute values ENG...
Page 61 - Pressing DATA CALL repeatedly gives:
4. Pressing DATA CALL repeatedly gives: 1. The Maximum value of the pro-bes connected to the inputs 2. The Minimum value of the probes connected to the inputs 3. The Mean value of the probesconnected to the inputs 4. Returns to normal operatingmode ENGLISH 125 MAX ° C 10 3 MIN ° C 10 3 MED ° C 10 3 ...
Page 62 - Instrument programming.; Resets relative probes
ENGLISH 126 5. Instrument programming. 10 3 10 3 = = + + + 10 3 + + + = = + = + + + = Returns to normal ope-r a t i n g m o d e , w i t h o u ts t o r i n g t h e c h a n g e dvalues. Confirms the selectedvalue and returns ton o r m a l o p e r a t i n gmode Unloads data from the memoryReturns to no...
Page 65 - Activation or disactivation of the serial output.; Serial output active; Activation or disactivation of the Record function.; When the key is pressed the instrument; RCD
ENGLISH 129 = = = + + Returns to normaloperating mode = + = Enters calibrationfunction + + 6. Activation or disactivation of the serial output. Serial output active Serial output ended 7. Activation or disactivation of the Record function. When the key is pressed the instrument gives a beep and star...
Page 66 - Activation and disactivation of the storage function.; Storage phase active
ENGLISH 130 8. Activation and disactivation of the storage function. Storage phase active Storage phase ended Start-Stop Serial Out Memory ° C 10 3 Start-Stop ° C 10 3 Start-Stop
Page 67 - INDEX; INSTRUCTIONS FOR CONNECTING DELTA OHM INSTRUMENTS TO A PC
INDEX TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 KEYBOARD . . . . ....
Page 69 - CE CONFORMITY; Safety
CE CONFORMITY Safety EN61000-4-2, EN61010-1 level 3 Electrostatic discharge EN61000-4-2 level 3 Electric fast transients EN61000-4-4 level 3 Voltage variations EN61000-4-11 Electromagnetic interference sucseptibility IEC1000-4-3 Electromagnetic interference emission EN55020 class B DELTA OHM SRL VIA...
