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Summary of Contents for Microsensor MDM6000 Series
- Page 1 MDM6000 Operation Manual V1.1...
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Page 2: Table Of Contents
CONTENTS 1 Preface ....................1 2 Safety Precautions ................1 3 Outline and installation ................. 2 4 Electrical connection ................12 5 Menu Operation .................. 16 6 Operation, maintenance and troubleshooting ........21 7 Unpacking, Components and Storage ..........24 8 Responsibility .................. -
Page 3: Preface
CO., LTD. It is recommended to read this manual carefully before any operation. 1.1 Product Overview MDM6000 series intelligent pressure transmitter adopts-mono-crystalline piezoresistive technology, and uses the avanced design concept. The sensor element is positioned at the top of the metal body, far from the media contact surface, to achieve... -
Page 4: Outline And Installation
If the product is used in hazardous area, the installation, operation and maintenance should comply with the operation manual and relevant requirements of national standards. Be careful to tear down the instrument under the normal atmospheric pressure. 3 Outline and installation 3.1 Product installation environment 3.1.1 Environmental condition Operation Temperature：-40℃～85℃，With LCD display：-20℃～70℃... - Page 5 3.2 Transmitter installation The transmitter housing can rotate about 300 ° against the sensor and can be fixed at any position without affecting the performance and internal wiring. When rotating the housing, it is not allowed to forcibly rotate the sensor part. Loosen the setscrew with a 2mm hex wrench but not screw it out completely.
- Page 6 3.2.3 Differential pressure transmitter with remote seal - bracket mounting Figure 6 (Bending Figure 7 (Bending bracket Figure 8 (Flat Bracket for bracket for 2" pipeline) for panel mounting) pipeline) 3.2.4 Intelligent differential pressure level transmitter Figure 9 (Flush type) Figure 10 (extended)
- Page 7 3.2.5 Pressure process connection Unit in mm MDM6000 With Display MDM6000 Without Display Figure 11 (Gauge/Absolute) Figure 12 (Gauge /Absolute) MDM6000 With Display MDM6000 Without Display Figure 13 (differential pressure) Figure 14 (differential pressure)
- Page 8 MDM6000 With Display MDM6000 Without Display Figure 15 (Differential pressure Figure 16 (Differential pressure transmitter with remote seal) transmitter with remote seal) MDM6000 With Display MDM6000 Without Display Figure17 (Differential pressure level Figure18 (Differential pressure level transmitter with flush mount) transmitter with flush mount)
- Page 9 MDM6000 With Display MDM6000 Without Display Figure 19 (Differential pressure level Figure 20 (Differential pressure level transmitter with the extension) transmitter with the extension) MDM6000 With Display MDM6000 Without Display Figure 21 Smart Gauge-T/Absolute-T Figure 22 Smart Gauge-T/Absolute-T (Standard connection) (Standard connection)
- Page 10 MDM6000 With Display MDM6000 Without Display Figure 24 Smart Gauge-T/Absolute-T Figure 23 Smart Gauge-T/Absolute-T (Capillary tube Connection) (Capillary tube Connection) MDM6000 With Display MDM6000 Without Display Figure 26 Smart Gauge-T/Absolute-T Figure 25 Smart Gauge-T/Absolute-T (Fixed capillary connections) (Fixed capillary connections)
- Page 11 MDM6000 With Display MDM6000 Without Display Figure 27 Smart Gauge-T/Absolute-T Figure 28 Smart Gauge-T/Absolute-T (Heatsink connection) (Heatsink connection)
- Page 12 3.2.6 Valve manifold optional The transmitter can also be equipped with a variety of manifolds, the schematic diagram is as follows: Figure 29 (two-valve manifold) Figure 30 (three-valve manifold) Figure 31 (five-valve manifold) The second valve manifold is composed of a globe valve (switch or conduction) and a discharge valve (usually dirt, or water and gas), its function is to open or cut off the pipeline passage, and the flow direction of the applicable medium should be consistent with the direction of the...
- Page 13 cavity globe valve, the middle is a balance valve. The three-valve manifold is used in conjunction with the differential pressure transmitter, and the function is to turn the positive and negative pressure measuring chamber on or off from the impulse point; Or disconnect or turn on the positive and negative pressure measuring chambers.
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Page 14: Electrical Connection
The layout of pressure pipe shall enable bubbles in the measured ⚫ liquid or condensate in the measured gas to return to the process pipe; It shall be ensured that the high and low pressure sides of the ⚫ pressure pipe are correctly connected, fastened and reliable without any leakage. - Page 15 Warning Explosion-proof transmitter must be cut off after the power supply before wiring, wiring should be completed by tightening the back cover and screwing the connector to tighten the cable to achieve the purpose of dustproof and waterproof, fixed cable. 4.1.1 Two-wire power cord connection Figure 32 4.1.2 Two-wire Hart communication connection...
- Page 16 4.1.3 Four-wire RS485 communication connection Figure 34 4.2 Notes Keep the wiring as short as possible; It is recommended to use the shielded twisted pairs signal cable to ground. To avoid grounding loops, the shield is grounded at a single end, insulated from the transmitter housing and also grounded at the side of the cabinet;...
- Page 17 4.3 Cable Protection Standard protection: To avoid liquid flowing along the cable, causing effusion at the waterproof joint or inside the junction box, be sure the cable connecting the junction box and the pressure transmitter is in a U-shape as shown in the figure, and the lowest point of the "U"...
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Page 18: Menu Operation
4.4 power supply It is recommended to use an independent linear DC power supply for the pressure transmitter, cause the resistance load can lead to the voltage drop. The total resistance load is the sum of the resistance of the signal leads and load resistance of controller, indicator and other pieces and must meet the requirements. -
Page 23: Operation, Maintenance And Troubleshooting
5.3 Overall flowchart of key operation Figure 37 6 Operation, maintenance and troubleshooting 6.1 Pre-running preparation and inspection It is highly recommended to do zero adjustment (This function is only available for gauge and differential pressure products .Be sure no pressure or medium is on the measuring diaphragm, and the transmitter is vented to atmosphere), because the installation position will affect the zero setting. - Page 24 nameplate, the output current signal is 4mA~20mA. If the pressure is lower than the calibrated measuring range, the output signal shows 3.8mA, and if the pressure is higher than the calibrated measuring range, the output signal shows 20.8mA. 6.3 Maintenance And Cleaning ⚫...
- Page 25 repair, and replacement of failed parts. ⚫ In the case of measurement signal errors, please check the process pressure, measurement system, environmental effects for abnormal conditions, and check the pressure transmitter for damages, then analyze the causes and take appropriate measures. ⚫...
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Page 26: Unpacking, Components And Storage
7 Unpacking, Components and Storage 7.1 Unpacking Check the packing box for intactness and be sure all components are included, and the box should be placed following the mark "↑" When opening the box, please be careful to protect the instrument or accessories.
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