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Panametrics DewPro MMY30 Скачать руководство пользователя страница 11

DewPro

®

MMY30 User’s Manual

3

Chapter 1. General System Information

1.3 Introduction

1.3.1

Unit Description

The DewPro MMY30 trace moisture transmitter (shown in

below) is a loop-powered dewpoint measuring

device. The transmitter includes a sensor element, a flow chamber, a weather-proof enclosure, microprocessor

electronics, and assorted fittings, all in a compact assembly. In most cases, either the inlet or outlet port includes an

orifice to regulate the flow. The placement of this orifice determines whether the dewpoint measurement is done at

process (line) pressure (outlet orifice), or at atmospheric pressure (inlet orifice). A 2 micron sintered inlet filter

prevents solid particles from entering the device.

Figure 2: DewPro MMY30 Transmitter

1.3.2

Optional Display/User Interface

The optional display/user interface feature allows the MMY30 to be configured to the user's specifications. See

Chapter 4

for more information.

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Содержание DewPro MMY30

Страница 1: ...A40251540 Rev D April 2022 Panametrics com DewPro MMY30 User s Manual...

Страница 2: ......

Страница 3: ...A40251540 Rev D Panametrics com DewPro MMY30 Trace Moisture Transmitter User s Manual A40251540 Rev D April 2022...

Страница 4: ...ii no content intended for this page...

Страница 5: ...minor personal injury and or severe damage to the equipment unless these instructions are followed carefully WARNING This symbol indicates a risk of potential serious personal injury unless these inst...

Страница 6: ...ke back initiative directive 2012 19 EU The equipment that you bought has required the extraction and use of natural resources for its production It may contain hazardous substances that could impact...

Страница 7: ...esigning the Loop 14 3 3 Mounting in Normal Environments 14 3 4 Mounting in Environments with Severe Electrical Noise 15 3 5 Electrical Connections 16 3 6 General Installation Instructions 16 Chapter...

Страница 8: ...Contents vi DewPro MMY30 User s Manual no content intended for this page...

Страница 9: ...s there is damage to the unit or any of its components notify the carrier within 15 days of delivery and request an inspection Move the carton to a clean work area and unpack it The carton should cont...

Страница 10: ...None Outlet Orifice with FNPT B Inlet None Outlet Orifice with 6 mm tube fitting C Inlet None Outlet None with 6 mm tube fitting D Inlet Orifice Outlet None with 6 mm tube fitting S Other Enclosure C...

Страница 11: ...mpact assembly In most cases either the inlet or outlet port includes an orifice to regulate the flow The placement of this orifice determines whether the dewpoint measurement is done at process line...

Страница 12: ...4 2 Bypass In dryer applications the moisture sensor performs best when mounted in a bypass The built in bypass of the DewPro MMY30 eliminates costly hardware associated with traditional sampling met...

Страница 13: ...ws enough clearance for the use of tools and for connection of the field validator Figure 3 below shows the dimensions of the standard DewPro MMY30 and Figure 4 on page 6 shows the DewPro MMY30 with t...

Страница 14: ...Chapter 1 General System Information 6 DewPro MMY30 User s Manual Figure 4 DewPro MMY30 Dimensions with Optional Display User Interface 1 92 48...

Страница 15: ...ake all necessary precautions when mounting or removing the DewPro MMY30 CAUTION Do not over tighten the DewPro MMY30 connections The outlet fitting is connected to the bypass block with a gasketed G...

Страница 16: ...integral bypass with an orifice the sensor monitors the dewpoint at process pressure The flow rate of the bleed off air to the atmosphere at 7 8 bar 100 psig is approximately 70 cc min 28 L h 1 0 SCFH...

Страница 17: ...User s Manual 9 Chapter 2 Installation Guidelines 2 3 Method II Orifice at Inlet Figure 6 below illustrates installation of the DewPro MMY30 at the inlet orifice Figure 6 DewPro MMY30 Installation at...

Страница 18: ...ir passing through the DewPro MMY30 bypass line is fed back to the main stream after a pressure drop in the main line In this configuration the DewPro MMY30 bypass has no flow restriction at either th...

Страница 19: ...onnection at the inlet enables mounting the DewPro MMY30 at a remote location Any of the functions described for Methods I III can be selected The DewPro MMY30 can be mounted on a wall or a plate usin...

Страница 20: ...ual Figure 9 DewPro MMY30 with Various Mounting Brackets 6 50 in 165 mm 2 76 in 70 mm 4 45 in 113 mm 3 23 in 82 mm 4 45 in 113 mm 2 95 in 75 mm 0 79 in 20 mm 4 45 in 113 mm Panel Mounting Vertical Pip...

Страница 21: ...splays for use with the DewPro MMY30 Figure 10 Power Supplies and Displays for the DewPro MMY30 CAUTION The DewPro MMY30 system contains electronic components that are susceptible to damage by static...

Страница 22: ...impedance of 50 Ohms will cause a voltage drop of 1 VDC at 20 mA Likewise connecting the loop to a PLC Programmable Logic Controller will cause a voltage drop across the input When designing your loop...

Страница 23: ...electrical noise refer to the specifications in Chapter 6 A shielded two wire cable as shown in Figure 12 below can be used to interconnect the DewPro MMY30 with the power source Figure 10 DewPro MMY...

Страница 24: ...etighten the metal cable gland to meet IP 67 requirements 5 Verify that a voltage between 12 and 28 VDC is present across the terminals marked and Note Because of voltage loss in the wire length the d...

Страница 25: ...ure 14 DewPro MMY30 with Display User Interface 4 1 1 DewPro MMY30 with Display Assembly 1 Unscrew and remove the protective lid from the top of the DewPro MMY30 as shown in Figure 14 above exposing t...

Страница 26: ...isplay of the DewPro MMY30 continuously shows the current matrix location using the vertical V and horizontal H coordinates to designate the row and column respectively The bar graph represents the ou...

Страница 27: ...ressing the V and H buttons simultaneously returns the user to VH 00 normal display 2 Display Only Note that five matrix locations are for display only and may not be changed by the user refer to Tabl...

Страница 28: ...nits to be displayed Changing from C to F does not change the current loop Changing from dewpoint to ppmv does change the current loop Note When switching to ppmv the display may indicate an error 3 i...

Страница 29: ...bar requires compensation by programming the actual process pressure in bar absolute to the matrix field VH 30 The system should be designed to maintain a constant pressure by using a pressure regula...

Страница 30: ...n 0 No error 1 Dewpoint underrange The current output has fallen below 4 00 mA 2 Dewpoint overrange The current output has exceeded 21 92 mA 3 The instrument is no longer reading between 90 and 20 C d...

Страница 31: ...r H 4 5 3 6 Set to Default Values 4 5 3 7 Resetting the Device VH 94 This field resets all factory defaults Note Anything that has been calibrated will not be reset VH 99 The device is reset in this f...

Страница 32: ...Chapter 4 Optional Display User Interface Option G or H 24 DewPro MMY30 User s Manual no content intended for this page...

Страница 33: ...he error remains the cause may be a defective sensor assembly or an electronics malfunction Contact Panametrics Problem 2 There is no current Solution 2 Check the voltage and polarity across the termi...

Страница 34: ...Chapter 5 Troubleshooting 26 DewPro MMY30 User s Manual no content intended for this page...

Страница 35: ...Accuracy 2 C 3 6 F dew point at 25 C 77 F Maximum Sensor Relative Humidity 50 at dewpoint temperatures greater than 0 C 32 F Operating and Storage Temperature 40 C to 50 C 40 F to 122 F Air Bleed Off...

Страница 36: ...User Interface The optional onboard display with user interface uses a matrix configurator for Range changes Unit of measure selection Current loop adjustment Error diagnostics Current value selection...

Страница 37: ...MMY30 Bxxxx Explosionproof with intrinsically safe sensor Class I Division 1 Groups A B C D Type 4X T5 Ta 60 C per drawing FM XP Dewpro FM Approvals MMY30 Cxxxx Non incendive Class I Division 2 Groups...

Страница 38: ...Chapter 6 Technical Specifications 30 DewPro MMY30 User s Manual no content intended for this page...

Страница 39: ...DewPro MMY30 User s Manual 31 Appendix A User Interface Matrix Input Appendix A User Interface Matrix Input Table 3 on page 32 shows the complete DewPro MMY30 programming matrix...

Страница 40: ...t Units 0 C 1 F 35 ppmv Loop 1 at Fault 0 10 1 110 2 Hold V1 Dewpoint C at 4 mA Dewpoint C at 20 mA ppmv at 20 mA V2 V3 Pressure ppmv Constant bar Output D A Cal 4 mA Output D A Cal 20 mA V4 V5 V6 V7...

Страница 41: ...urpose and warranties arising from course of dealing or usage or trade Return Policy If a Panametrics instrument malfunctions within the warranty period the following procedure must be completed 1 Not...

Страница 42: ...Warranty 34 DewPro MMY30 User s Manual no content intended for this page...

Страница 43: ...MA Repair Requests Calibration Requests Document and Certificate requests for a product you currently have International Baker Hughes Customer care Email mstechsupport bakerhughes com Phone 36 27 565...

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