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Delta DO 9704 manual Flow Rate Measurements

Models: DO 9704

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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.

FLOW RATE PROBES

	Measuring range	Selection	Output	Indication
		resistance kΩ	frequency PPL	lt/min.

LT 5	5 l/min.	90.9	5	5
(LT10)*		95.3	5	20
LT20	20 l/min.
(LT50)*		100	0.5	125
LT125	125 l/min.
(LT250)*		105	0.1	400
(LT300)*
LT400	400 l/min.
LT500	500 l/min.	110	0.04	500
LT750	750 l/min.	115	0.04	750

LT configurable	2000 l/max	121	configurable	PPL

*The instrument can read a reduced measuring range, it has the same selection resistance.

The connection cable of the configurable turbine will end with a DIN 8-pole connector; connect a 121 kΩ resistance between pin 3 and pin 7.

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N.C.	N.C.	Select.		N.C.	N.C.
N.C.	N.C.	Select.		N.C.	N.C.

		R.

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Active probe for measuring flow rate with a turbine 2 to 2000 litres/minute.

*A coil which generates impulses with a minimum of 100 mV p-p is connected to pins 4 and 6.

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Image 48

Delta DO 9704 manual Flow Rate Measurements

Contents

Instructions Manual Page Pressure and Temperature DATA-LOGGER English Introduction Keyboard KEY Numbers Function Description Simbols LIT BesidesNumbers REL Simbols LIT Besides Function Numbers Description Tom of the displaySerial Output P0+ Press the Prog key to move on to step P1300 Baud 600 Baud P1+ = data dump P1+ StorageHours minutes Seconds This parameter is used for the fol- lowing two functions Function P3+ P4+ = set year P5+ = set month P6+ = set day P7+ = set hours P8+ = set minutes P9+ Self cut-out P10+ To stop storage, press the Enter keyP10 Complete printing Reduced printing P11+ P11Data Call + Start-Stop Operating mode When this operativeKEY Simbols LIT Besides Ches itself off again If the battery symbol does not fla Simbols LIT Besides Function Numbers Description Enter Restart it More than 30,000 acquisitionsAfter having taken note HOW to Measure Probe Connection Various operations Temperature Measurement Method of Using the Instrument and Warnings Instrument Signals and Malfunctions ErrFUL LOU LOW Battery Warning and Battery Replacement Storage of the Instrument Serial Interface RS 232C Command Type Reply Parity None Bit Stop bit Protocol Xon/XoffType of terminal Dumping data from the memory Memory clear Diagram do Printer Example of a Report Printed by the Instrument English Hardware connection Software connection with Windows OK to confirm the setting one click Mark local Echo one click 100 101 Switch on the measuring instrument 102 OK to confirm Cancel in the next window 103 Parity None 104 105 106 107 108 109 To end receiving data from an instrument Select END from the pull-down sub-menu one clickTo quit running the Hyper Terminal 110 Calibrating the Instrument do Vdc=465.5 Flow Rate Measurements Probe connection diagram Instrument do Connection of Probes to the Pressure Gauge Data Logger do113 SEL R 100 105 110 115Turbine probe for measuring flow rate Between 4 Classification of Pressure Measurements Gauge Conversion Factors and Tables Psi = Pa Psi = kPa= 3,386 x 103 Pa = 2,491 x 102 Pa 118 Instrument Technical Data Connector DIN 45326 8-poleWeight / dimensions 320 gr. / 215x73x38 mm Minimum, Mean, Relative, A-B differential 120 121 Order Codes Guarantee Examples of USE of the Keyboard Serial lineDisplay blocked 124 Pressing Data Call repeatedly gives 125 Instrument programming Sets year Sets daySets hour 127 Enables self cut-out + Normal operatingDate and time Data printing is reduced 128 Activation or disactivation of the serial output Activation or disactivation of the Record functionFunction Serial output active Activation and disactivation of the storage function 130 Index 131 132 Safety EN61000-4-2, EN61010-1 level