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Microsensor MPM489WZ4 Operation Manual

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MPM489WZ4
Operation Manual

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Summary of Contents for Microsensor MPM489WZ4

  • Page 1 MPM489WZ4 Operation Manual...

  • Page 2: Table Of Contents

    Contents 1 Introduction ..................1 2 Specifications ................. 1 3 Outline Dimension of transmitter ............. 2 4 Electrical Connection ..............4 5 Unpacking, Enclosed Shipment and Storage ........5 6 Installation ..................6 7 Operation、Maintenance and Fault Diagnosis ......10 8 Responsibility ................

  • Page 3: Introduction

    Thank you very much for selecting Micro Sensor’s product, please carefully read this operation manual before using the product. 1 Introduction MPM489WZ4 is a Φ17mm diameter fully sealed submersible level transmitter based on diffused-silicone principle. It consists of a high stable and reliable piezoresistive pressure sensing element and the special PCB component as well as the stainless steel housing.

  • Page 4: Outline Dimension Of Transmitter

    Span Thermal Drift: ±0.05％ FS/℃ Long-tem Stability: Range＞20mH O， ±0.2％FS/year Range≤20mH O， 20mmH O/year Operation temp.: -10℃~70℃ Storage Temp.: -20℃~85℃ Power Supply: 11V~28V DC Output Signal: 4mA~20mA DC（two wire） Load (Ω): ≤ (U-11)/0.02（Ω） Insulated Resistance: 500VDC，20MΩ Protection Rating: IP68 3 Outline Dimension of transmitter 3.1 The outline dimension is showed as Figure 1: unit:mm Cable length: the maximum length is 300m.
  • Page 5 Indicator: Connection box Ye is available with the indicator upon the customer request. ～1 4 0 Φ8 0 Mounting hole 2-M6 Depth 10 Φ8 4 Connection box Yb Connection box Y Connection box Yc Figure2 4 Electrical Connection...

  • Page 6: Electrical Connection

    4.1 Wiring Wire Color Definition Black 0V/+OUT 4.2 Electrical connection for 4mA~20mA DC output transmitter P/I Transmitter DC current Load 0V/OUT Input 20mA ～ 4.3 Electrical connection for transmitter with connection box: There is a terminal connection board inside the transmitter connection box, and their definition is indicated below.

  • Page 7: Unpacking, Enclosed Shipment And Storage

    OV/+OUT 4.4 Notes a) There is a plastic tube in the transmitter special cable; the back pressure cavity of gauge sensor is connected to atmosphere by this tube. In the process of installation and operation, be sure to keep the reference tube be well connected with the atmosphere.

  • Page 8: Installation

    Please be sure the cable casing and rubber sheath are well protected. 5.2 Enclosed Shipment When delivery, the transmitter includes: MPM489WZ4 Level Transmitter PE Cable(connected with transmitter) the ordered length Connection Box（connected with cable） comply with the order Indicator（in connection box Ye）...
  • Page 9 construction material or not. c) Whether the measuring liquid can jam the holes on the protection cap or not. 6.2 Installation Methods The transmitter should be installed vertically down. In the flowing water, the acted surface should be parallel with the water flowing direction.
  • Page 10 C o n t r o l R o o m El ec t ni ca l C on n ec t io n B ox F ix ed Mo un t s ed i me n t Figure 3 Electnical Connection Box Control Room Fastener...
  • Page 11 reservoir area, etc.) The water-calming equipment are required. Method one: Insert a steel tube in the water channel (see Figure 5). The steel tube wall should be thicker, and several holes should be made at different heights on the tube to damp waves and clear the water pressure influence.

  • Page 12: Operation、Maintenance And Fault Diagnosis

    E L e c t n i c a l C o n n e c t i o n Bo x Figure 6 Method three: see Figure 7. This method can not only clear water flowing pressure and wave influence, but also filter the sand and mud.
  • Page 13 30 minutes. 7.2 Maintenance MPM489WZ4 Level Transmitter does not need to be maintained regularly, but please pay attention to items in the below for better operating effect and reliability. a) Check wire connection is reliable or not, and the cable is broken and old or not.

  • Page 14: Responsibility

    without movable parts inside, have advantages of long-term stability and reliability. If some failure occur, such as no output, output too big or too small or unreliable, please turn off the excitation firstly, then check the installation and wire connection conform with the operation manual or not, the excitation is correct or not and the reference tube is unobstructed or not.