Novus NP785 Instruction Manual Download Page 3

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NOVUS AUTOMATION

3/28

SAFETY ALERTS

The symbols below are used in the device and throughout this manual to draw the user’s attention to important information related to device safety

and use.

CAUTION

Read the manual fully before installing and

operating the device.

CAUTION OR HAZARD

Risk of electric shock.

ATTENTION

Material sensitive to static charge. Check

precautions before handling.

All safety recommendations appearing in this manual must be followed to ensure personal safety and prevent damage to the instrument or system.

If the instrument is used in a manner other than that specified in this manual, the device’s safety protections may not be effective.

www.

GlobalTestSupply

.com

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Summary of Contents for NP785

Page 1: ...NOVUS AUTOMATION 1 28 NP785 Ultra Low Differential Pressure Transmitter INSTRUCTION MANUAL V1 0x G www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Page 2: ... 9 5 2 ALARM CONFIGURATION 9 5 3 ANALOG OUTPUT CONFIGURATION 10 6 USB INTERFACE 11 7 SERIAL COMMUNICATION 12 7 1 REGISTERS TABLE 12 8 NXPERIENCE SOFTWARE 20 8 1 INSTALLING NXPERIENCE 20 8 2 RUNNING NXPERIENCE 20 8 3 CONFIGURING WITH NXPERIENCE 20 8 3 1 GENERAL PARAMETERS 22 8 3 2 INPUT PARAMETERS 22 8 3 3 OUTPUT PARAMETERS 23 8 3 3 1 TRANSMISSION OUTPUT CONFIGURATION 23 8 3 3 2 ALARM OUTPUT CONFIG...

Page 3: ...ON OR HAZARD Risk of electric shock ATTENTION Material sensitive to static charge Check precautions before handling All safety recommendations appearing in this manual must be followed to ensure personal safety and prevent damage to the instrument or system If the instrument is used in a manner other than that specified in this manual the device s safety protections may not be effective www Global...

Page 4: ...table set points and custom timing among other functions Its transmission output can be configured to operate in the 0 10 V and 4 20 mA standards with adjustable range within the sensor limits and has adjustable behavior options in case of sensor error NXperience software offers a quick and intuitive way to configure of all equipment features It is also possible to carry out the monitoring and obt...

Page 5: ...e most varied market needs the NP785 Ultra Low Differential Pressure Transmitter line is available in two models Model NP785 05 of 5 mbar Model NP785 20 of 20 mbar Model Minimal Pressure Maximal Pressure Unit Burst Pressure Standard Configuration 5 mbar 5 000 5 000 mbar 200 mbar x 72 52 72 52 mpsi 2 007 2 007 in H2O 50 98 50 98 mm H2O 500 0 500 0 Pa 20 mbar 20 000 20 000 mbar 400 mbar x 290 08 290...

Page 6: ...red The extension of the hoses does not affect the device accuracy Very long hoses however can result in measurement delays Hoses should not be bent or sharp curves should not be taken Such actions may result in airflow interruption and possible sensor reading blockage Fig 03 Hose handling The hose do not come with the device Overpressure Excessive pressure which exceeds the NP785 Ultra Low Differ...

Page 7: ...ils The device s internal devices do not ensure total protection Grounding helps limit the effects of noise due to electromagnetic interference EMI Run the grounding connection by using the grounding bolt and the grounding plane before turning on the device 4 2 2 SPECIAL PRECAUTION Because it is an electronic module the device needs some care when handling Due to the risk of damage caused by stati...

Page 8: ...le 02 Electrical connections 4 2 4 USB CONNECTION The USB connection is used exclusively for the device diagnosis and configuration The USB interface is on the NP785 Ultra Low Differential Pressure Transmitter side It is recommended that the device be configured before it is attached to the DIN rail For more information check the USB Interface chapter Fig 06 USB Cable connection www GlobalTestSupp...

Page 9: ...eading the sensor the alarm output will remain on Below Lower Setpoint The alarm output will be triggered when the current pressure is lower than the lower set point To exit the alarm condition the differential pressure must be greater than the lower set point plus the hysteresis value Above Higher Setpoint The alarm output will be triggered when the differential pressure is higher than the upper ...

Page 10: ...imit 10 V 4 20 mA 3 6 mA 21 0 mA Minimum Limit 3 6 mA Sensor error 21 0 mA Maximum Limit 21 0 mA Table 03 Behavior of the analog output in case of sensor failure Available starting with firmware version 1 20 and software version 2 0 6 02 The excursion of the electric signal respects the values set in the configuration of the lower and upper transmission limits which allows customizing the differen...

Page 11: ...cumentation to perform MONITORING Follow the procedure below to use the device USB communication Download NXperience from our website and install it on your computer see chapter NXperience Software The USB drivers required for communication will be installed along with the software Connect the USB cable between the device and the computer The device doesn t need a power supply The USB will provide...

Page 12: ...es mpsi 2 decimal places inH2O 3 decimal places mmH2O 2 decimal places Pa 1 decimal place 5 HR_PRESS_MAX_H Table 04 NP785 05 Model Output Registers Table NP785 05 Model Configuration Registers Table Address Name Description R W Type Standard Min Max Decimal Places 100 HR_SENSOR_TYPE Sensor type 5 mbar or 20 mbar RO uint16 0 0 1 N A 101 HR_OUT1_TYPE Retransmission output type RW uint16 0 0 1 N A 10...

Page 13: ...2O 3 decimal places mmH2O 2 decimal places Pa 1 decimal place 126 HR_A1SPLO_IN_H 127 HR_A1BL Alarm block RW uint16 0 0 1 N A 128 HR_A1HY Alarm hysteresis RW uint16 0 0 1 mbar 14 50 mpsi 0 401 inH2O 10 20 mmH2O 100 0 Pa mbar 3 decimal places mpsi 2 decimal places inH2O 3 decimal places mmH2O 2 decimal places Pa 1 decimal place 129 HR_A1T1 Alarm time ON RW uint16 0 0 6500 0 130 HR_A1T2 Alarm time OF...

Page 14: ...d status on alarm RW uint16 0 0 1 N A 156 HR_FORCE_IN_PRESS Enables differential pressure forcing RW uint16 0 0 1 N A 157 HR_FORCE_PRESS_IN Forced differential pressure value input RW int_32 0 5 mbar 72 52 mpsi 2 007 inH2O 50 98 mmH2O 500 0 Pa 5 mbar 72 52 mpsi 2 007 inH2O 50 98 mmH2O 500 0 Pa mbar 3 decimal places mpsi 2 decimal places inH2O 3 decimal places mmH2O 2 decimal places Pa 1 decimal pl...

Page 15: ...cimal places mpsi 2 decimal places inH2O 3 decimal places mmH2O 2 decimal places Pa 1 decimal place 362 HR_PRESS_LOW_LIMIT_H Check the Table 11 for more information about the device configuration registers Table 06 NP785 05 Model Information registers NP785 20 Model Output Registers Table Address Name Description R W Type Standard Min Max Decimal Places 0 HR_PRESS Differential pressure value RO in...

Page 16: ...r limit RO int_32 20 mbar 290 08 mpsi 8 029 inH2O 203 94 mmH2O 2000 0 Pa 20 mbar 290 08 mpsi 8 029 inH2O 203 94 mmH2O 2000 0 Pa 20 mbar 290 08 mpsi 8 029 inH2O 203 94 mmH2O 2000 0 Pa mbar 3 decimal places mpsi 2 decimal places inH2O 3 decimal places mmH2O 2 decimal places Pa 1 decimal place 111 HR_OUT1_LOW_LIMIT_H 113 HR_PRESS_FLTR Filter for differential pressure reading RW uint16 0 0 300 0 115 H...

Page 17: ...O 2 decimal places Pa 1 decimal place 152 HR_OUT1_FORCE_ENAB Enables forcing output 1 RW uint16 0 0 1 N A 153 HR_OUT1_FORCE_VAL Forced value for output 1 RW uint16 0 0 00 V 3 60 mA 10 00 V 21 mA 2 154 HR_A1_FORCE_ENAB Enables forcing alarm 1 RW uint16 0 0 1 N A 155 HR_A1_STATE Changes forced status on alarm RW uint16 0 0 1 N A 156 HR_FORCE_IN_PRESS Enables differential pressure forcing RW uint16 0...

Page 18: ...nH2O 203 94 mmH2O 2000 0 Pa 20 mbar 290 08 mpsi 8 029 inH2O 203 94 mmH2O 2000 0 Pa 20 mbar 290 08 mpsi 8 029 inH2O 203 94 mmH2O 2000 0 Pa mbar 3 decimal places mpsi 2 decimal places inH2O 3 decimal places mmH2O 2 decimal places Pa 1 decimal place 362 HR_PRESS_LOW_LIMIT_H Check the Table 11 for more information about the device configuration registers Table 09 NP785 20 Model Information Registers T...

Page 19: ...abled 12 HR_DIAGNOSE02 DIAG_SENSOR_ERROR Differential pressure sensor error 0 HR_DIAGNOSE03 DIAG_OUT1_LIMIT_OOR Input of retransmission limits outside the range 1 DIAG_ALM1_SETPT_OOR Input of alarm setpoints outside the range 3 DIAG_FORCE_PRESS_OOR Input of pressure forcing values out of range 6 HR_DIAGNOSE04 DIAG_UNDER_RANGE Indicates that the lower limit of the range has been exceeded 1 DIAG_OVE...

Page 20: ...ith the software the NP785 Ultra Low Differential Pressure Transmitter must be connected to the computer and with the previously installed USB drivers Then you can click on Configure or Monitor The Download option is not available for this device model The first time you read a device you must select the device to be connected Simply double click on the desired device or once it is selected click ...

Page 21: ...lly the device model serial number firmware version and the maximum and minimum pressure range of the sensor can be identified Input On this tab the user can select the system of measures to be used by the device in addition to configuring the offset and digital filter for the pressure sensor input Output On this tab the user can configure the transmission analog output and the alarm output Diagno...

Page 22: ...us Address in the network and configure the Baud Rate and Parity 8 3 2 INPUT PARAMETERS By clicking on the icon you can configure the pressure sensor input Fig 13 Input configuration screen In the Unit parameter you can select the units mbar Mpsi in H2O mm H2O or pascal By default the unit of device is set to mbar The Pressure parameter informs the differential pressure of the device when the wind...

Page 23: ...llows you to select the electrical standard to be used for the transmission 0 10 V or 4 20 mA The electrical signal of the output will be proportional to the selected magnitude respecting the values configured in the Lower Limit and in the Upper Limit parameters In case of sensor failure the quantity to be transmitted by the analog output will go into Error Mode For the error condition you must se...

Page 24: ... modes the Error Condition parameter allows you to configure a safe state of the alarm output in case of sensor failure Thus the output will be on or off depending on the value set in this parameter Upper Limit and Lower Limit are the differential pressure values that act as alarm activation conditions that together with the Hysteresis define the barrier to be exceeded so that the channel exits th...

Page 25: ... force the output in order to verify the correct operation of the device and test the settings applied to the NP785 Differential Pressure Transmitter Fig 18 Output Diagnostics To force a value at a transmission analog output use the slider or type de desired value directly into the edit field and then press the button From this moment the NP785 Ultra Low Differential Pressure Transmitter will forc...

Page 26: ...e forcing interface of the alarm output in the three possible conditions No forcing forcing on ON and forcing in OFF state Fig 20 Alarm output without forcing Fig 21 Alarm output with forcing in on state Fig 22 Alarm output with forcing in off state 8 3 5 FINALIZATION By clicking on the icon you can send the configuration to the device save the configurations in a file update the device firmware a...

Page 27: ...ower Supply Current 45 mA 10 24 Vdc Input Two sockets for the pneumatic hose connection of 4 or 6 mm internal diameter Output They may be configured independently to operate with signals 0 10 V or 4 20 mA 0 10 V o Maximum current 2 mA o Resolution 0 003 V 4 20 mA o Maximum load 500 R o Resolution 0 006 mA Protection Rating IP 20 Housing ABS PC Electromagnetic Compatibility EN IEC 61326 1 NXperienc...

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