M&C EC Series Instruction Manual
Ultra low gas cooler
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Summary of Contents for M&C EC Series
- Page 1 ® Ultra Low Gas Cooler Series EC EC30 and EC-30/FD Instruction Manual Version 1.01.00...
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Page 2: Table Of Contents
Content General information ........................ 5 Declaration of conformity ....................... 5 Safety instructions ........................6 Warranty ..........................6 Used terms and signal indications..................7 Introduction ..........................8 Serial number ........................8 Application ..........................9 Technical data ........................10 Description ..........................10 Assembly .......................... - Page 3 List of Illustrations Figure 1 Example of application of EC-30/FD................9 Figure 2 EC-30 with options EC-F and EC-FD ................11 Figure 3 Schematic diagram of functioning of heat exchanger .............12 Figure 4 Tubing of the heat exchangers ..................13 Figure 5 Timing schematic of the switching processes ..............13 Figure 6 Position of terminal X0 ....................17...
- Page 4 Dear customer, we have made up this operating manual in such a way that all necessary information about the product can be found and understood quickly and easily. Should you still have any question, please do not hesitate to contact M&C directly or go through your appointed dealer.
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Page 5: General Information
Head Office M&C TechGroup Germany GmbH Rehhecke 79 40885 Ratingen Germany Telephone: 02102 / 935 - 0 Fax: 02102 / 935 - 111 E - mail: info@mc-techgroup.com www.mc-techgroup.com GENERAL INFORMATION The product described in this operating manual has been examined before delivery and left our works in perfect condition related to safety regulations. -
Page 6: Safety Instructions
SAFETY INSTRUCTIONS Please take care of the following basic safety procedures when mounting, starting up or operating this equipment: Read this operating manual before starting up and use of the equipment. The information and warnings given in this operating manual must be heeded. Any work on electrical equipment is only to be carried out by trained specialists as per the regulations currently in force. -
Page 7: Used Terms And Signal Indications
USED TERMS AND SIGNAL INDICATIONS This means that death, severe physical injuries and/or important material damages will occur in case the respective safety measures are not fulfilled. D AN G E R ! This means that death, severe physical injuries and/or important material damages may occur in case the respective safety measures are not fulfilled. -
Page 8: Introduction
INTRODUCTION The patented M&C EC30 gas cooler with universal unit EC-F and EC-30/FD with unit EC-FD is always to be installed in situations where there is interference from moisture in the gas to be measured, or if the measured components exhibit very high sensitivity to water vapour or if long and expensive heated sampling lines are to be avoided. -
Page 9: Application
APPLICATION The patented M&C ultra-low temperature cooler EC-30(/FD) finds its applications in the analytical field for reducing the dew point of humid sample gases, providing a stable and very low dew point and reducing aerosol formation in the analyser. By mounting the cooler near to the sample point, costly energy consuming heated sample lines can be avoided. -
Page 10: Technical Data
TECHNICAL DATA ® Cooler series EC Version EC-30 Version EC-30/FD Part No. 02K6000 (a)** 02K6010 (a)** With integrated universal unit: EC-F to force the ventilation EC-FD ventilation and condensate removal Gas connection tube connector DN 4/6 i./o. d. mm Condensate connections 3x tube connector GL25-12 mm 1x tube connector DN 4/6 i./o. -
Page 11: Assembly
ASSEMBLY Figure 2 EC-30 with options EC-F and EC-FD www.mc-techgroup.com EC-30 | 1.01.00... -
Page 12: Function
The EC30 is equally suitable for wall installation or mounting in a 19” rack. The versions differ in the positioning of the LED function display . While for wall installation the LED function display can be fitted into the corresponding cut-outs in the EC30 front panel, for 19” rack mounting this is done using the cut-outs in the back panel of the casing. -
Page 13: Figure 4 Tubing Of The Heat Exchangers
A decoupled compressor cooler system has a heat-insulated cooling block at a constant temperature of +1C. Control of the compressor is contactless done by the EC automatic control electronics and is therefore not subject to wear. The pre-cooling stage ensures that the greater part of the condensate has already been removed from the gas stream. -
Page 14: Reception And Storage
The heat energy from the cooling system is drawn off by the forced ventilated condenser. The LED function display on the front of the cooler shows the operating status. Alarm warnings for over- and under-temperature are given as a collective status alarm via a relais output with two potential-free changeover contacts. -
Page 15: Installation Instructions
INSTALLATION INSTRUCTIONS The EC-30(/FD) cooler is equally suitable for wall mounting or for installation in a 19" rack. Please state the desired type of mounting when ordering, so that the LED function display can be positioned to match at the factory! N O T E ! The operating position for this cooler is exclusively vertical. -
Page 16: Electrical Connections
When fixing the connectors in the PVDF heat exchanger hold up with a wrench at the pane of the bolt head! The connection for the gas inlet (see above) is made to the heat exchanger of N O T E ! the pre-cooling stage 3(fig. -
Page 17: Figure 6 Position Of Terminal X0
Figure 6 shows the location of the terminal X0 behind the front panel of the EC-30 casing (fig. 2). EC30 power supply EC-electronic EC30-electronic Pre-cooler deep cooler Solenoid valve Sample gas switching Terminal X0 from deep from deep cooling stage cooling stage ... -
Page 18: Start-Up
START-UP The control electronics of the EC30(/FD) permit automatic start up of the cooler, which also ensures safe and guaranteed operation regardless of external influences such as a power failure. The error diagnostics guarantee full monitoring and reporting of possible sources of error. The following description is valid for startup of the gas cooler for an ambient temperature >... - Page 19 After approx. 30 minutes the pre-cooler stage has been cooled down to a temperature below +4C. The top red LED goes out and the bottom red LED lights up. The low-temperature stage is activated and starts operating at full power.
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Page 20: Closing Down
CLOSING DOWN The location for the cooler must remain frost-free, even when the unit has been switched off! N O T E ! If the cooler unit is put out of operation for a short time no particular measures have to be taken. We recommend purging the cooler with inert gas or ambient air, while the unit is put out of operation for a longer time. -
Page 21: Maintenance Of The Peristaltic Pumps Type Sr25.1 Of The Ec-30/Fd
16.1 MAINTENANCE OF THE PERISTALTIC PUMPS TYPE SR25.1 OF THE EC-30/FD Before the maintenance work is carried out, it is necessary that the specific safety procedures pertaining to the system and operational process are observed! Dangerous voltage! It is necessary to take the pump off the mains before any assembly, D AN G E R maintenance and repair work is carried out! Flexible tube, conveying belt, contact pulleys and contact springs are the only parts of the pump subject... -
Page 22: 16.1.2 Change Of Contact Pulleys And Springs
Take away conveying belt and remove the old hose set from the guides by the hose connectors; Press the two contact pulleys and check whether the spring pressure is still sufficient, if not, the contact springs have to be changed; ... -
Page 23: Replacing The Heat Exchangers
16.2 REPLACING THE HEAT EXCHANGERS Removal of the heat exchangers may be necessary to carry out maintenance or repair work. It is possible to replace the heat exchanger (pre-cooling stage) without switching off the entire cooler. This does not apply to the heat exchangers of the low-temperature stages and . Icing-up at operating temperatures of -30C will make it impossible to dismantle the unit. -
Page 24: Trouble Shooting
TROUBLE SHOOTING Troubleshooting is made much easier by the LED function display. The following table shows possible reasons for error and how to correct them (not applicable for the running-up phase of the cooler). LED display Function error Probable cause Checking / Correction and status alarm... - Page 25 LED display Function error Probable cause Checking / Correction and status alarm Ambient temperature must be ≥ +5°C! Equipment does Ambient not cool; temperature < -2°C Cooler has been Cooling compressor Check temperature at EC automatic control board over-cooled (temp. stopped;...
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Page 26: Ec Automatic Control Board
EC AUTOMATIC CONTROL BOARD Figure 7 shows the arrangement of the EC automatic control board of the pre-cooling stage (wiring scheme in Appendix). Figure 9 EC automatic control board EC-30 | 1.01.00 www.mc-techgroup.com... -
Page 27: Connecting The Cooling Compressor
18.1 CONNECTING THE COOLING COMPRESSOR The cooling compressor is connected to the EC automatic control board (Fig. 9). Figure 10 shows the connection diagram for the compressor. cable Nr.1 from EC automatic control board pin 21 cable Nr.2 from EC automatic control board pin 24 cable Nr.3 from EC automatic control board pin 22 PE green/yellow from EC automatic control board pin 23... -
Page 28: Temperature Setting For The Cooler
18.2 TEMPERATURE SETTING FOR THE COOLER The pre-cooling stage is set at the factory to a regulated temperature of +1°C. Uref Current-Temp. Utemp > 100k °C Uref Setting-Temp. Connect a d.c. voltmeter to terminals 1, 2 and 3! Figure 11 Temperature adjustment Setting of the regulated temperature is done by trimming potentiometer P3, on the EC automatic control board of the cooler. -
Page 29: Checking The Temperature Sensor Of The Deep Cooling Stage
12 shows the voltage characteristics in relation to temperature. If the measured voltage is inside the shaded area, the sensor is defective and has to be replaced. °C Figure 12 Voltage in relation to the temperature of the cooling stage Resistance method In this case the sensor must be disconnected from pins 1 and 2 at the EC automatic control board (Fig. -
Page 30: Figure 14 Sensor Voltage As Function Of Temperature
Figure 14 Sensor voltage as function of temperature If the measured voltage is inside the shaded area, the sensor is defective and has to be replaced. EC-30 | 1.01.00 www.mc-techgroup.com... -
Page 31: Ec Control Board
EC CONTROL BOARD Figure 15 shows the layout of the EC30 control board (wiring diagram in appendix). Operating indication Channel Channel 2 Channel 1 Heating Temperature adjustment (zero) Alarm threshold (<-25°C at MP3) Trans- Power Solenoid Power former valve supply Voltage at MP1, MP2, MP3 measured against MP5 (V): Corresponding temperatures in °C... -
Page 32: Function Sequence Of The Ec30 Control Electronics
20.1 FUNCTION SEQUENCE OF THE EC30 CONTROL ELECTRONICS Nine LEDs are available for error diagnosis of the EC30 control electronics to display all the logic and alarm functions. Do not change any settings that had been made at the factory! ... - Page 33 In the event of a brief (mains) power failure: The current cycle status will be stored; All LEDs go out; The status alarm contact is activated; The flow of sample gas is cut off externally, in case the sample gas pump or a solenoid valve in the sample gas line are to be controlled by an alarm contact.
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Page 34: Spare Parts List
SPARE PARTS LIST Wear, tear and replacement part requirements depend on specific operating conditions. The recommended quantities are based on experience and are not binding. Gas cooler EC-30(/FD) (C) Consumable parts (R) Recommended spare parts (S) Spare parts Recommended quantity being in operation [years] Part No. -
Page 35: Appendix
APPENDIX Sample outlet dew point (ambient temperature 20°C) depending on heat exchanger material, inlet dew point and gas flow rate Circuit diagram EC automatic control board, drawing number : 2300 - 5.04.2 Circuit diagram EC30 (from 9/98), drawing number: 2389 - 5.01.3 ... -
Page 36: Figure 17 Sample Outlet Dew Point
Sample outlet dew point (ambient temperature 20°C) depending on gas flow rate sample inlet dew point 60°C Sample outlet dew point 40°C °C EC-G N l/hr 187,5 62,5 Gas flow rate Sample outlet dew point °C EC-SS N l/hr 62,5 187,5 Gas flow rate Sample outlet dew point... - Page 37 Figure 17 Circuit diagram EC automatic control board www.mc-techgroup.com EC-30 | 1.01.00...
- Page 38 Figure 18 Circuit Diagram EC-30 EC-30 | 1.01.00 www.mc-techgroup.com...
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Page 39: Figure 20 Circuit Diagram Control Electronic Ec-30
Figure 19 Circuit diagram control electronic EC-30 www.mc-techgroup.com EC-30 | 1.01.00... -
Page 40: Figure 21 Wiring Plan Automatic Condensate Removal Unit Ec-Fd
Figure 20 Wiring plan automatic condensate removal unit EC-FD EC-30 | 1.01.00 www.mc-techgroup.com...
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