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Sentera Controls DPS-M-LP Mounting And Operating Instructions

Differential pressure transmitter with display
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DPS-M--LP
DIFFERENTIAL PRESSURE
TRANSMITTER WITH DISPLAY
Mounting and operating instructions

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Summary of Contents for Sentera Controls DPS-M-LP

  • Page 1 DPS-M--LP DIFFERENTIAL PRESSURE TRANSMITTER WITH DISPLAY Mounting and operating instructions...

  • Page 2: Table Of Contents

    DPS-M--LP DIFFERENTIAL PRESSURE TRANSMITTER WITH DISPLAY Table of contents SAFETY AND PRECAUTIONS PRODUCT DESCRIPTION ARTICLE CODE INTENDED AREA OF USE TECHNICAL DATA STANDARDS OPERATIONAL DIAGRAMS WIRING AND CONNECTIONS MOUNTING INSTRUCTIONS IN STEPS VERIFICATION OF INSTALLATION OPERATING INSTRUCTIONS TRANSPORT AND STORAGE WARRANTY AND RESTRICTIONS MAINTENANCE MIW-DPS-M--LP-EN-000 - 11 / 10 / 2021...

  • Page 3: Safety And Precautions

    DPS-M--LP DIFFERENTIAL PRESSURE TRANSMITTER WITH DISPLAY SAFETY AND PRECAUTIONS Read all the information, the datasheet, Modbus map, mounting and operating instructions and study the wiring and connection diagram before working with the product. For personal and equipment safety, and for optimum product performance, make sure you entirely understand the contents before installing, using, or maintaining this product.

  • Page 4: Product Description

    DPS-M--LP DIFFERENTIAL PRESSURE TRANSMITTER WITH DISPLAY PRODUCT DESCRIPTION The DPS-М--LP series are differential pressure transmitters (-125—125 Pa), which are equipped with a fully digital pressure transducer designed for a wide range of applications. Air velocity readout is available by connecting an external Pitot tube connection set.

  • Page 5: Operational Diagrams

    DPS-M--LP DIFFERENTIAL PRESSURE TRANSMITTER WITH DISPLAY ■ WEEE Directive 2012/19/EC ■ RoHs Directive 2011/65/EC OPERATIONAL DIAGRAMS Minimum Maximum Maximum Minimum range alert range alert Differential pressure Measured value (pressure, volume flow or air velocity) vs. output Volume flow Air velocity WIRING AND CONNECTIONS RJ45 socket (Power over Modbus) Pin 1...
  • Page 6 DPS-M--LP DIFFERENTIAL PRESSURE TRANSMITTER WITH DISPLAY Fig. 1 Mounting dimensions Fig. 2 Mounting position Incorrect Correct 10,5 Insert the cable into the cable gland. Crimp the RJ45 cable and plug it into the socket, see Fig. 3 and section “Wiring and connections”. Fig.

  • Page 7: Verification Of Installation

    DPS-M--LP DIFFERENTIAL PRESSURE TRANSMITTER WITH DISPLAY Fig. 4 Connecting with accessories Application 1: Measuring differential pressure [Pa] or Application 2: Measuring volume flow [m³/h] or air velocity volume flow [m³/h] using PSET-PVC (or PSET-QF) [m/s] using PSET-PT +D -S Switch on the power supply. Optional settings To assure correct communication, the NBT needs to be activated in only two devices on the Modbus RTU network.

  • Page 8: Operating Instructions

    DPS-M--LP DIFFERENTIAL PRESSURE TRANSMITTER WITH DISPLAY indication means the unit has detected a Modbus network. If LED1 does not blink, check the connections again. NO T E For more information, refer to the product datasheet - Settings. Fig. 7 Power / Modbus communication indication ATTENTION The status of the LEDs can be checked only when the unit is energised.
  • Page 9 DPS-M--LP DIFFERENTIAL PRESSURE TRANSMITTER WITH DISPLAY Fig. 8 Sensor calibration and Modbus register Fig. 9 Calibration & Modbus reset indication reset 9 a Calibration indication 9 b Modbus reset indication LED4 LED3 LED2 LED1 Communication holding registers reset procedure: Put the jumper onto pins 1 and 2 of the P4 connector for more than 20 s while the device is powered (see Fig.
  • Page 10 DPS-M--LP DIFFERENTIAL PRESSURE TRANSMITTER WITH DISPLAY Fig. 11 Differential pressure display 11 a Below 100 Pa 11 b Above 100 Pa Out of range indication: ► The display shows “Lo” every 3 seconds in case the measured differential pressure is lower than the minimum limit of the control range set via the relevant holding register (see Fig.

  • Page 11: Transport And Storage

    DPS-M--LP DIFFERENTIAL PRESSURE TRANSMITTER WITH DISPLAY Fig. 14 Air velocity mode Фи Correct reading of air velocity is possible only if it is enabled by holding register NO T E 64 (Pitot air velocity) and a transmitter is connected to the appropriate Pitot tube connection set (PSET-PTX-200).

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