Related Manuals for GE DewPro MMY 245
Summary of Contents for GE DewPro MMY 245
- Page 1 DewPro MMY245 Installation and Operation Manual DewPro MMY 245 Portable Moisture Analyzer Installation and Operation Manual GE Measurement & Sensing Technologies GE General Eastern GE General Eastern...
- Page 2 800-33HUMID (800-334-8643). When contacting the factory for technical support, please have your serial number ready. This number is located inside the unit and can be accessed by loosening the two knurled screws on the top of the unit. Serial Number: _______________________________ GE General Eastern...
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Page 3: Table Of Contents
2.5.6.1 External Power Option__________________________________________________________ 16 2.5.6.2 External Scalable Input Option. ___________________________________________________ 16 2.5.6.3 Voltage Inputs ________________________________________________________________ 16 2.5.6.4 Output connections ____________________________________________________________ 17 Troubleshooting ___________________________________________________________17 3.1 General Troubleshooting Practice _________________________________________________17 3.2 Error Codes ___________________________________________________________________18 Field Validator Operation ___________________________________________________19 GE General Eastern... - Page 4 Closed Loop Connection ____________________________________________________________ 24 4.4 Field Validator Setup____________________________________________________________25 4.4.1 Matrix Orientation _________________________________________________________________ 25 4.4.2 Single Point Validation Function Guide _________________________________________________ 26 4.4.3 Two-point Validation Function Guide __________________________________________________ 26 Troubleshooting Validator Operation __________________________________________27 Instrument Specifications____________________________________________________28 Appendix _________________________________________________________________29 GE General Eastern...
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Page 5: General System Information
Gas inlet, 3 ft. PFA hose with quick connect set and ¼” tube process connection 63002200 Gas inlet and outlet connection, ¼” tube PFA 63005036 Coalescing Filter for Glycol Contactor Applications 63005037 Pressure Regulator for samples greater than 125 psig. GE General Eastern... -
Page 6: System Description
An optional pressure sensor can provide real time correction for concentration units of measure. In lieu of the optional sensor, a pressure constant can provide the proper value with known pressure conditions. GE General Eastern... -
Page 7: Field Validator
When in the “dry” position, the passage for the sample connection inlet is connected to the outlet for purging the connecting hoses. This purging operation is critical for making the measurement as quickly as possible since a fresh sample is transferred to the immediate sensor location GE General Eastern... -
Page 8: Software Features
A sample contaminated with particulates will deposit some of this material inside the unit producing more surface area and sites where moisture could be trapped. This could result in higher than actual readings. If the sample contains particulates or aerosols, it must be filtered to remove this contamination. GE General Eastern... -
Page 9: Avoid Corrosive Chemicals
–65°C, Copper and PTFE tubing. Rubber, Tygon and other plastic or polymer tubing is NOT recommended for ANY application. Insure that all connections at the sample tap and at the instrument are leak tight. 1.4 Dimensions Figure 1 GE General Eastern... -
Page 10: Basic Operation
Reading Still Changing has stabilized and can be recorded correctly. Below, several Figure 3 different measurement techniques are discussed from the perspective of connecting the sample to the unit; but the basics of operation remain the same. GE General Eastern... -
Page 11: Basic Sampling Or Spot-Checking
Making a moisture measurement with the DewPro MMY 245 is simple but there are some general moisture measurement practices that should be followed. If these practices are followed, the MMY 245 will provide many years of reliable service. GE General Eastern... -
Page 12: Mapping Spot Check Route
Good record keeping and tracking the initial measurements for longer periods can be helpful in determining the typical dryer performance in a specific system. GE General Eastern... -
Page 13: Quality Assurance
V6 H0 V7 H0 V8 H0 V9 H0 and back to . At any location where a value may be changed by the user, the digit to be altered is selected using the “+” and “-” buttons. GE General Eastern... - Page 14 13 = Pressure Td °C Special 1=begin 100=OK 1=begin 100=OK Remaining Minutes 50=Unlock 14 = Pressure Td °F Display Display Reset System Unit Software Primary Secondary to Defaults Reset Service Version Error Code Error Code 50=Reset 50=Reset Figure 5 GE General Eastern...
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Page 15: Special Functions Of The Push Buttons
Not all of the cells in the matrix are used. Below are descriptions for specific cells that are used to control the operation of the instrument. Note: a portion of the V8 row will be explained in section 4 since this row refers to the interface with the MMY 30/31 series transmitters. GE General Eastern... - Page 16 0 to 14 in V4 H1. Selects the second unit of measure displayed in V4 H0 from the table in location V4 V4 H1 H1 on the matrix illustration. GE General Eastern...
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Page 17: Special Output And Input Functions
Calibrates the output 1 hardware at 0 V: connecting a voltmeter to the output the displayed number can be increased or decreased using the + and - button to adjust the voltmeter reading to 0 V (Value is around 500). This is factory calibrated. GE General Eastern... -
Page 18: Interconnection
The cable P/N 63002013, will allow connection of the DC 0/1-5 VDC signal using the Orange (+) and Black (-) wires per the drawing MSY35C in the appendix of this manual. This input can be scaled and GE General Eastern... -
Page 19: Output Connections
After these items are verified to be correct, and if the unit still produces questionable readings, contact the General Eastern factory field service department by calling 800-33HUMID (334-8643) for further assistance. General Troubleshooting Guide GE General Eastern... -
Page 20: Error Codes
64 from 80. The remainder is 16. 16 is the largest error that fits in 16 so “Temperature out of range” is true. Now subtract 16 from 16. The remainder is 0. This indicates there are no more errors occurring. GE General Eastern... -
Page 21: Field Validator Operation
For either method, the MMY 245 is connected to the same sample as that for the MMY 3 transmitter and monitors the sample and the performance of the on-line transmitter. The reading(s) are compared and the EEPROM data on board the transmitter is automatically reprogrammed to correct any error(s). GE General Eastern... -
Page 22: Optimum Validation Practice
EEPROM data in the on-line transmitter is programmed almost immediately. If either the transmitter or the MMY 245 are not equilibrated, then the validation of the on-line transmitter will not be reliable. To insure both devices have reached equilibrium, monitor the output of the transmitter for a steady GE General Eastern... -
Page 23: Mmy 3 Transmitter Preparation
245 as incorrect and the sequence terminated before incorrect data is programmed to the EEPROM. This software feature can only check for the obvious and may not prevent errors if the connection practices discussed below are not followed. GE General Eastern... -
Page 24: Transmitter Vent (Series) Connection
Caution: This connection must be performed with caution since the process must be opened temporarily to the atmosphere in order to connect the MMY 245. Release the vacuum gradually before making the process connection to the MMY 245. GE General Eastern... -
Page 25: Parallel Connection
The connection for the MMY 245 is made to process typically using a ¼” tube compression fitting adapter threaded into the sample tap on the process piping This fitting can be connected to the MMY 245 using the hose and fitting connector accessory. GE General Eastern... -
Page 26: Closed Loop Connection
“U” shape to allow easy removal. Removing this “U” tube and connecting the inlet and outlet connections of the validator to these valves will complete the process connections. GE General Eastern... -
Page 27: Field Validator Setup
The single point calibration is selected by moving through the matrix using the “V” and “H” keys on the V8 H2 portable to the and setting the value to . The two-point calibration is selected in the same manner GE General Eastern... -
Page 28: Single Point Validation Function Guide
Allow them to equilibrate to the higher value. Calculating and reprogramming new values into the slave transmitter. Successful compensation confirmed Compensation cancelled early. GE General Eastern... -
Page 29: Troubleshooting Validator Operation
Error has occurred or instrument 4. Connect to is off-scale a dry gas source 5. Contact the factory Display reads a negative number during the An error has been detected during Contact validation procedure. the procedure. Factory GE General Eastern... -
Page 30: Instrument Specifications
0.1° C dew point temperature Calibration: Factory recalibration recommended every 6-12 months depending on use, within 4 months of MMY 3 series transmitter field validations ** With optional pressure transducer * Specifications subject to change without notice GE General Eastern... -
Page 31: Appendix
DewPro MMY245 Installation and Operation Manual 7 Appendix GE General Eastern...