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HD402…

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V1.1

When the measurement is in alarm, the red LED lights up, the buzzer is on (if ena-
bled) and the relay is switched (depending on the chosen relay operating mode).

While in alarm, the buzzer can be stopped (only for the current event) by short press-
ing the button B1.

The alarm is disabled while in the configuration menu.

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Содержание DeltaOhm HD402 Series

Страница 1: ...Operating manual Pressure transmitters Pressure ON OFF relay switches HD402 series www deltaohm com English Keep for future reference ...

Страница 2: ... 9 4 CONFIGURATION 11 4 1 CONFIGURATION OF THE MODELS WITH ANALOG OUTPUT HD402 A T 11 4 2 CONFIGURATION OF THE MODELS WITH RS485 OUTPUT HD402ST 14 4 3 CONFIGURATION OF THE MODELS WITH RELAY OUTPUT HD402TR 16 4 4 ERROR MESSAGES ON DISPLAY 19 5 ALARM OPERATING MODES HD402TR 20 6 MODBUS RTU PROTOCOL HD402ST 22 7 INSTRUMENT STORAGE 24 8 SAFETY INSTRUCTION 24 9 ACCESSORIES ORDERING CODES 25 ...

Страница 3: ...alog output HD402T 2 wire current loop 4 20 mA analog output HD402AT ON OFF relay switch HD402TR L Different units of measurement can be chosen for each model and in the models with analog output it is possible to choose the full scale f s value for the output high intermediate or low range and set the unipolar 0 f s or bipolar f s f s measuring range Versions with optional 4 digit LCD display opt...

Страница 4: ... buzzer relay switch Response time 0 5 seconds for the display updating For transmitters configurable 0 125 1 2 or 4 seconds for the output Overpressure limit HD402 1 HD402 2 HD402 3 50 kPa HD402 4 200 kPa HD402 5 400 kPa Connection to PC RS232 serial port Can be connect to a USB port by using the optional CP27 adapter Zero calibration Automatic for HD402TR1L manual for the other models Compatible...

Страница 5: ...00 1000 2000 250 500 1000 10 15 30 The instrument range is f s the low and intermediate ranges are only for the models with analog output the models with RS485 and relay output always have the high range The range 0 f s for the output can be set in the models with analog output the range on display is al ways f s f s high range TAB 2 2 resolution Model Pa kPa mbar mmH2O inchH2O mmHg PSI HD402 1 0 ...

Страница 6: ...put the RS232 serial connector COM AUX except HD402ST the dip switches for quick configuration The CAL ZERO button except HD402TR or the B1 and B2 buttons for the con figuration via display only HD402TR COM AUX 1 2 3 4 5 6 ON POWER SUPPLY OUTPUT CAL ZERO LED DIP SWITCH 1 2 3 4 5 6 LCD LED DIP SWITCH CAL ZERO COM AUX 1 2 3 4 5 6 ON 1 2 3 4 5 6 POWER SUPPLY OUTPUT LCD Models with active analog outpu...

Страница 7: ...sconnect both the tubes from the and pressure inputs then proceed as follows Zero manual calibration in the models with CAL ZERO button press CAL ZERO until the red LED starts flashing when the red LED turns off the zeroing procedure is completed reconnect the tubes to the pressure inputs Zero manual calibration in the models HD402TR Press B1 and B2 buttons at the same time until the ALARM red LED...

Страница 8: ... requires that the total load does not exceed 32 unit loads The load of an HD402ST transmitter is equal to of unit load If the total load is greater than 32 unit loads di vide the network into segments and add a signal repeater between a segment and the successive one Line termination should be applied at both ends of each segment The instrument has a built in line termination that can be connecte...

Страница 9: ...y less than 50pF m Resistance less than 100 ohm km Gauge 0 22 mm2 AWG24 at least The cable maximum length depends on baud rate and cable characteristics Typically the maximum length is 1200 m The data line must be kept separated from any power lines in order to prevent interferences on the transmitted signal 3 2 EXAMPLE OF CONNECTION WITH THE INDICATOR CONTROLLER HD9022 0 20 or 4 20 mA active curr...

Страница 10: ...HD402 10 V1 1 2 wire current loop 4 20 mA output ...

Страница 11: ...measurement Dip switch 6 setting of the unipolar 0 f s or bipolar f s f s measuring range for the analog output The following tables report for each model the measuring range corresponding to the analog outputs according to dip switches position TAB 4 1 measuring ranges for the analog output in the models HD402 A T1 Dip switch number 6 2 3 4 5 4 5 4 5 4 5 OFF OFF ON OFF OFF ON ON ON Pa mmH2O inchH...

Страница 12: ...0 500 0 15 0 1000 ON ON ON OFF ON 25 25 100 100 4 4 250 250 ON OFF 50 50 250 250 7 5 7 5 500 500 OFF OFF 100 100 500 500 15 15 1000 1000 ON ON TAB 4 5 measuring ranges for the analog output in the models HD402 A T5 Dip switch number 6 2 3 4 5 4 5 4 5 4 5 OFF OFF ON OFF OFF ON ON ON kPa mmHg PSI mbar OFF OFF ON 0 50 0 250 0 10 0 500 ON OFF 0 100 0 500 0 15 0 1000 OFF OFF 0 200 0 1000 0 30 0 2000 ON...

Страница 13: ... active current output In order to read the settings of the transmitter send the commands described in Ta ble 4 7 TAB 4 7 serial commands to read the configuration models with analog output Command Response Description G0 See the example below It reads the current configuration of the transmitter If the dip switch 1 is OFF it returns the configuration set via the serial port If the dip switch 1 is...

Страница 14: ...gh a RS485 RS232 converter or USB through a RS485 USB converter for example the RS48 ca ble port If a RS485 USB converter is used install in the PC the related USB drivers To enable the configuration mode set the dip switch 1 the one closest to the terminal block to ON upwards then power the transmitter Note the dip switch 1 can be changed from OFF to ON even when the instru ment is powered in thi...

Страница 15: ...pear in the replies to the next commands BAUD r r Sets the Modbus Baud Rate to the value r r The acceptable values are 9600 and 19200 default 19200 If the command is sent without the parameter r r the current setting is obtained PAR p Sets the Modbus communication parameters of index p p O 8O1 p N 8N2 p E 8E1 If the command is sent without the index p the current setting is obtained de fault 8E1 N...

Страница 16: ...ip switches Models TR1 e TR2 Models TR3 TR4 e TR5 Dip switch number Unit of measurement Dip switch number Unit of measurement 4 5 4 5 OFF ON inchH2O OFF ON PSI ON OFF mmH2O ON OFF mmHg OFF OFF Pa OFF OFF kPa ON ON mbar ON ON mbar The dip switches 2 3 and 6 are not used CONFIGURATION VIA THE COM AUX SERIAL PORT The configuration set with serial communication is used by the instrument only if the di...

Страница 17: ...Sets the buzzer activation status n 0 OFF n 1 ON Default OFF ARB Reads the buzzer activation status AWAn Sets the alarm activation status n 0 OFF n 1 ON Default OFF ARA Reads the alarm activation status AWEn Sets the alarm operating mode n 0 Above threshold alarm is on if measurement is greater than threshold 1 n 1 Below threshold alarm is on if measurement is less than threshold 1 n 2 Outside thr...

Страница 18: ...the power LED turns off To long press a button hold it down for at least 3 seconds until the power LED turns off and then turns on again Long press the upper button B1 to enter the menu Inside the menu long press B1 to scroll the available parameters Below is the sequence of the operating parameters in brackets the indication that appears on the display with the possible set tings for non numerica...

Страница 19: ...eter by using the button B1 Short press the button B2 to change the setting Long press the button B1 to move to the next parameter Changing numerical parameters Select the parameter by using the button B1 Short press the button B2 to change the sign Long press the button B2 to select the first digit Short press the button B2 to change the selected digit Long press the button B2 to select the next ...

Страница 20: ...ess than threshold 1 for more than T1 seconds The alarm is turned off when the measurement becomes greater then threshold 1 plus the hysteresis for more than T2 seconds The down arrow on the left of the display is shown when this mode is selected Outside thresholds OUTS the alarm is turned on if the measurement is greater than threshold 2 or less than threshold 1 for more than T1 seconds The alarm...

Страница 21: ...ghts up the buzzer is on if ena bled and the relay is switched depending on the chosen relay operating mode While in alarm the buzzer can be stopped only for the current event by short press ing the button B1 The alarm is disabled while in the configuration menu ...

Страница 22: ...dths of inchH2O only HD402ST1 and HD402ST2 16 bit integer 12 Pressure in hundredths of inchH2O only HD402ST2 and HD402ST3 16 bit integer 13 Pressure in tenths of inchH2O only HD402ST3 HD402ST4 and HD402ST5 16 bit integer 14 Pressure in inchH2O only HD402ST4 and HD402ST5 16 bit integer 15 Pressure in thousandths of mmHg only HD402ST2 16 bit integer 16 Pressure in hundredths of mmHg only HD402ST2 an...

Страница 23: ...8E1 and 4 8O1 16 bit integer The Modbus Holding Registers allow setting the same Modbus parameters that can be set via the serial commands WA BAUD and PAR Use the 06h Write Single Register and 03h Read Holding Registers function codes to write and read respectively the con tent of the registers To make the changes of the Holding Registers content active and permanent write the hexadecimal value FF...

Страница 24: ...ry use and has left the factory in perfect safety tech nical conditions The instrument proper operation and operating safety can be ensured only if all standard safety measures as well as the specific measures described in this manual are followed The instrument proper operation and operating safety can be ensured only in the cli matic conditions specified in this manual Do not use the instruments...

Страница 25: ...ole connector on the instrument side CP27 Connection cable with built in USB RS232 converter USB connector on the PC side and 3 pole connector on the instrument side RS48 Cable for RS485 connection with built in USB RS485 converter The cable has USB connector for PC and 3 separate wires for the instruments Delta OHM metrology laboratories LAT N 124 are ISO IEC 17025 accredited by ACCREDIA for Temp...

Страница 26: ...HD402 26 V1 1 NOTES ...

Страница 27: ......

Страница 28: ...arranty included in the manual of the product For any dispute the competent court is the Court of Padua The Italian law and the Convention on Contracts for the International Sales of Goods apply TECHNICAL INFORMATION The quality level of our instruments is the result of the continuous product development This may lead to differences between the information reported in the manual and the instrument...

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