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Optional Display/User

Int

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ac

e

4-3

Sept

ember

2005

Table 4-1: Matrix Options

MMY31

H0

H1

H2

H3

H4

H5

H6

H7

H8

H9

V0

Display Moisture

Value

Select Units

0 = °C

1 = °F

35 = ppm

v

Loop #1 at Fault

0 = –10%
1 = 110%

2 = Hold

V1

Dewpoint

°C 4 mA

Dewpoint
°C 20 mA

ppm

v

20 mA

V2

V3

Pressure ppm

v

Constant (bar)

Output

D/A Cal 4 mA

Output

D/A Cal 20mA

V4

V5

V6

V7

V8

Input Locking

50 = Unlock

V9

Current Error

Code

Previous Error

Code

Device ID

Software

Version

Set to Default

Values

50 = Set Default

Reset Device

50 = Reset After

Calibration

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Содержание DewPro MMY31

Страница 1: ...GE Industrial Sensing DewPro MMY31 General Eastern Trace Moisture Transmitter Installation and Operation Manual ...

Страница 2: ...oisture Transmitter Installation and Operation Manual A40251548A September 2005 The DewPro MMY31 is a General Eastern Instruments product General Eastern Instruments has joined other GE high technology sensing businesses under a new name GE Industrial Sensing ...

Страница 3: ...nties arising from course of dealing or usage or trade Return Policy If a GE Infrastructure Sensing Inc instrument malfunctions within the warranty period the following procedure must be completed 1 Notify GE Infrastructure Sensing Inc giving full details of the problem and provide the model number and serial number of the instrument If the nature of the problem indicates the need for factory serv...

Страница 4: ...se 2 4 General Wiring Instructions 2 5 Chapter 3 Troubleshooting The Loop Current is Out of Range 3 1 There Is No Current 3 1 Chapter 4 Optional Display User Interface Installation 4 1 Removing the Display 4 1 Programming Matrix 4 2 Push Buttons Special Functions 4 4 Reset to Normal Display 4 4 Display Only 4 4 Default Values 4 4 Changing Values 4 4 Matrix Functions 4 5 Display and Output Mode 4 5...

Страница 5: ...Chapter 1 ...

Страница 6: ...General System Information Unpacking and Inspection 1 1 Theory of Operation 1 3 ...

Страница 7: ...nd request an inspection Move the carton to a clean work area and unpack The carton you receive should contain DewPro MMY31 Installation and Operation Manual Calibration Certificate Compare the last five numbers or letters on the model number on the product label shown in Figure 1 1 below with the product structure see below to ensure you have received everything you ordered Figure 1 1 DewPro MMY3...

Страница 8: ...g with gasket S Other Protective Cap A Standard with 100 micron sintered filter B Without sintered filter S Other Enclosure Conduit 1 Enclosure Conduit M20 x 1 5 F with cable gland and plug 2 Enclosure Conduit M20 x 1 5 F with FNPT adapter and plug S Other Output Configuration Dewpoint Range A Td 90 C to 10 C 130 F to 50 F no display error 22 mA B Td 90 C to 10 C 130 F to 50 F no display error Hol...

Страница 9: ...maximum loop resistance is 600 ohms The signal is represented by the 4 20 mA loop current and is directly proportional to the dewpoint temperature range in C or F In the standard range 4 mA corresponts to 90 C 130 F and 20 mA to 10 C 50 F dewpoint temperature The optional unit of measure is ppmv in the standard range 0 100 ppmv unless ordered differently Planar Sensor The heart of the MMY31 is the...

Страница 10: ...Chapter 2 ...

Страница 11: ...Installation Mounting the MMY31 cont 2 2 Wiring Configurations 2 3 ...

Страница 12: ...cessary precautions when mounting or removing the unit Choose a mounting location which allows enough clearance for the use of tools and for connection of the field validator Figure 2 1 below shows the dimensions of the standard MMY31 Figure 2 1 DewPro MMY31 Outline and Compression Fitting 5 43 138 4 25 108 9 45 240 0 79 20 0 50 12 7 Dimensions are in inches millimeters 4 64 118 without display ...

Страница 13: ...t your probe has a stainless steel ferrule which is required for use in pressurized systems Adjust the ferrule for a probe insertion length of 1 minimum and tighten the compression fitting as follows see Figure 2 2 below 1 Hand tighten the nut 2 Then using a wrench tighten the nut 1 turns Now the fitting is tight and can withstand pressure to 1750 psig 120 barg Figure 2 2 Mounting the MMY31 Minimu...

Страница 14: ...When selecting a power supply please note that the voltage at the terminal of the DewPro should not fall below 12 VDC The maximum loop resistance is an important measure for selection of the supply voltage Each device connected to the loop causes a voltage drop For instance using a loop powered display with an input impedance of 50 Ω will cause a voltage drop of 1 VDC at 20 mA using Ohm s law Conn...

Страница 15: ...Pro with the power source In Environments with Severe Electrical Noise The DewPro MMY31 meets the EMC requirements of IEC 61326 for equipment used in industrial locations The MMY31 passed all tests to the standards IEC 61000 4 to the performance criterion A Test details can be found in Chapter 5 Specifications Figure 2 4 Shielded Cable Wiring Diagram ...

Страница 16: ...s across the terminals marked and Note This is the voltage that appears across the DewPro terminals not necessarily the power supply voltage due to voltage loss in wire length displays indicators etc 6 In order to meet EMI RFI immunity a two wire shielded cable with a common foil shield layer is being used to power the MMY31 Removing the insulation by 3 inches allows users to pull back the foil cl...

Страница 17: ...Chapter 3 ...

Страница 18: ...Troubleshooting The Loop Current is Out of Range 3 1 There Is No Current 3 1 ...

Страница 19: ...22 mA Apply dry air for 20 minutes If the dewpoint doesn t decrease consult the factory If the dewpoint is below 90 C 130 F the current will go below 4 mA and then go to the error current e g 22 mA Expose the DewPro to ambient air for several minutes If the error remains the cause may be a defective sensor assembly or an electronics malfunction Consult the factory There Is No Current Solution Chec...

Страница 20: ...Chapter 4 ...

Страница 21: ...Optional Display User Interface Installation 4 1 Programming Matrix 4 2 Push Buttons Special Functions 4 4 Matrix Functions 4 5 ...

Страница 22: ...emoving the Display 1 Unscrew and remove the protective windowed lid from the DewPro as shown in Figure 4 1 above exposing the display module below The buttons V H and are now accessible 2 The display unit snaps onto the printed circuit board resting on four posts When removing the display push one post to the outside using a small screwdriver and pull the display out 3 Then unplug the display cab...

Страница 23: ...see Figure 4 2 above 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 output current in an analogue fashion Movement through the matrix is accomplished by using the V and H buttons to move to another row or column as shown in Table 4 1 on page 4 3 For example to select location...

Страница 24: ... C 1 F 35 ppmv Loop 1 at Fault 0 10 1 110 2 Hold V1 Dewpoint C 4 mA Dewpoint C 20 mA ppmv 20 mA V2 V3 Pressure ppmv Constant bar Output D A Cal 4 mA Output D A Cal 20mA V4 V5 V6 V7 V8 Input Locking 50 Unlock V9 Current Error Code Previous Error Code Device ID Software Version Set to Default Values 50 Set Default Reset Device 50 Reset After Calibration ...

Страница 25: ...grammable matrix field The values are present after a reset to factory programmed data has been executed see VH 95 Changing Values When unlocked VH89 50 values in certain matrix locations can be changed using the and buttons The changeable digit flashes VH 00 Normal display in dewpoint or ppmv VH 90 During a system alarm displays the error code for the fault encountered VH 91 During normal operati...

Страница 26: ...switching to ppmv the display may indicate an error 3 if the dewpoint reading is above 20 C For example the DewPro is exposed to ambient air Loop at Fault VH 07 If any fault malfunction occurs the loop can be set to either 10 3 6 mA to 110 22 mA or Hold stays at last valid value Selecting the Analog OutputOffset 4 mA VH10 The dewpoint value corresponding to the analog output offset 4 mA is entered...

Страница 27: ...e matrix field VH 30 The system should be designed to maintain a constant pressure for instance by using a pressure regulator in a bypass system Default 1 bar absolute Hardware Adjustment of the Current Loop at 4 mA VH 38 By connecting an ammeter in the loop the correct current 4 mA can be adjusted by increasing or decreasing the displayed digits Note If the matrix input is locked VH89 the calibra...

Страница 28: ...f of the internal vapor pressure table 4 ppmv overrange The current output has exceeded the 20 mA level Re range the ppmv upper scaling limit in V1H2 to keep this error from occurring 5 Sensor is shorted 6 Sensor is open Displaying the Previous Error Code VH 91 When a system fault condition is cleared the value of the error code is stored in this location That is during normal operation the most r...

Страница 29: ...Chapter 5 ...

Страница 30: ...Specifications Technical Specifications 5 1 Optional Onboard Display with User Interface 5 2 EMI RFI 5 2 EMC 5 2 ...

Страница 31: ...erature 40 to 122 F 40 to 50 C Electronics Operating Temperature Range 40 to 185 F 40 to 85 C Maximum Operating Pressure 1750 psig 120 bar 12 MPa Helium Leak Rate 10 6 mbar l s Output 4 to 20 mA loop powered 16 µA resolution Filter Element 100 micron sintered stainless steel Probe Tube 316 stainless steel 1 2 12 7 mm diameter insertion length 2 50 mm to 3 5 90 mm Typical Probe Mounting 1 2 NPT M 3...

Страница 32: ...ent loop adjustment error diagnostics current value selection for fault conditions entering a pressure constant for ppmv EMI RFI Performance Criterion A 1 Conducted Emission Test as per CISPR 11 Class A 2004 2 Radiated Emission Test as per CISPR 11 Class A 2004 3 Radiated Susceptibility Test as per IEC 61000 4 3 2002 4 Electrostatic Discharge Test as per IEC 61000 4 2 2001 5 Electrical Fast Transi...

Страница 33: ...hich this declaration relates are in conformity with the following standards EN 61326 1997 A1 A2 following the provisions of the 89 336 EEC EMC Directive The units listed above and any sensors and ancillary sample handling systems supplied with them do not bear CE marking for the Pressure Equipment Directive as they are supplied in accordance with Article 3 Section 3 sound engineering practices an...

Страница 34: ...vec les documents suivants EN 61326 1997 A1 A2 suivant les régles de la Directive de Compatibilité Electromagnétique 89 336 EEC Les matériels listés ci dessus ainsi que les capteurs et les systèmes d échantillonnages pouvant être livrés avec ne portent pas le marquage CE de la directive des équipements sous pression car ils sont fournis en accord avec la directive 97 23 EC des équipements sous pre...

Страница 35: ...01 High Temperature Moisture Transmitter folgende Normen erfüllen EN 61326 1997 A1 A2 gemäß den Europäischen Richtlinien EMV Richtlinie Nr 89 336 EG Die oben aufgeführten Geräte und zugehörige mitgelieferte Sensoren und Handhabungssysteme tragen keine CE Kennzeichnung gemäß der Druckgeräte Richtlinie da sie in Übereinstimmung mit Artikel 3 Absatz 3 gute Ingenieurpraxis der Druckgeräte Richtlinie 9...

Страница 36: ...USA 1100 Technology Park Drive Billerica MA 01821 4111 Web www gesensing com Ireland Shannon Industrial Estate Shannon County Clare Ireland ...

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