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COM.AIR

Dew Point Monitor

04/02/2015

Rev. B

1

Model COM.AIR

Compressed Air Dew Point Monitor

OPERATORS MANUAL

Edgetech Instruments Inc. 399River Rd, Hudson, MA 01749

508-263-5900 www.edgetechinstruments.com

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Summary of Contents for COM.AIR

Page 1: ...COM AIR Dew Point Monitor 04 02 2015 Rev B 1 Model COM AIR Compressed Air Dew Point Monitor OPERATORS MANUAL Edgetech Instruments Inc 399River Rd Hudson MA 01749 508 263 5900 www edgetechinstruments com ...

Page 2: ...RELAY CONNECTIONS 2 5 ANALOG OUTPUT CONNECTIONS 2 6 RS 232 SERIAL 3 0 FUNCTIONAL DESCRIPTION 3 1 DISPLAY 3 2 MABC BUTTON 3 3 SILENCE ALARM BUTTON 3 4 FLOW CONTROL VALVE 3 5 ALARM RELAY OUTPUT 3 6 ANALOG OUTPUT 4 0 SETUP 4 1 ALARM SET POINT 4 2 ABC INTERVAL 5 0 MAINTENANCE 5 1 ROUTINE MAINTENANCE 5 2 MIRROR CLEANING SCHEDULE 5 3 MIRROR CLEANING PROCEDURE 6 0 SPECIFICATIONS ...

Page 3: ...o be entirely satisfied with your instrument The information in this manual will get you started It tells you what you need to get your equipment up and running and introduces its many features We always enjoy hearing from the people who use our products Your experience with our products is an invaluable source of information that we can use to continuously improve what we manufacture We encourage...

Page 4: ...uirement of 40 Watts The power entrance hole located on the bottom of the enclosure is designed to accept a standard conduit clamp type fitting or a compression type fitting supplied The power line connections to the instrument are made using pigtail leads and wire nuts Connect the power leads as follows 1 Remove the three thumbscrews and the access cover as shown in Figure 2 2 2 Pull the three wi...

Page 5: ...PUT CONNECTIONS 1 Remove the Access Panel as in Figure 2 2 2 Referring to Figure 2 3 feed the wires to be connected to the analog output through the signals out fitting on the bottom of the enclosure and up to the PCB connector P1 4 20mA out NOTE To connect a wire to the terminal loosen the screw insert the wire in the opening and tighten the screw 3 Connect the high signal wire to the terminal an...

Page 6: ...COM AIR Dew Point Monitor 04 02 2015 Rev B 6 FIGURE 2 1 MOUNTING ...

Page 7: ...COM AIR Dew Point Monitor 04 02 2015 Rev B 7 FIGURE 2 2ACCESS PANEL REMOVAL ...

Page 8: ...COM AIR Dew Point Monitor 04 02 2015 Rev B 8 FIGURE 2 3WIRING CONNECTIONS ...

Page 9: ...l begin cooling and seeking the dew point When a stable lock on the dew point is achieved the ABC CYCL message will disappear and normal operation will resume The analog output is held to the dew point value just before the cycle started until the completion of the ABC cycle If an alarm condition is present when the ABC cycle begins the audible alarm and the ALARM display are disabled but the Alar...

Page 10: ...ible alarm will be automatically re enabled The alarm message on the display and the alarm relay will remain on 3 4 Flow Control Valve The sample flow rate is adjusted using this valve Although the sample flow rate is not critical for proper operation the recommended rate is 1 2 SCFH Standard Cubic Feet per Hour 3 5 Alarm Relay Output The Alarm Relay is a SPDT relay that is energized whenever the ...

Page 11: ...d set point temperature from degrees C to its eight bit binary equivalent code Table 4 1 is provided to convert F to C and the equivalent eight bit binary code 2 Set S1 1 closed and S1 2 open The alarm temperature setting will be displayed in degrees C NOTE S1 1 determines whether C or F is displayed in both the measurement and alarm set modes S1 2 will switch the display between the dew point and...

Page 12: ...COM AIR Dew Point Monitor 04 02 2015 Rev B 12 FIGURE 4 1SETUP ...

Page 13: ...00010101 28 0 18 0 10011100 22 0 71 0 00010110 27 0 16 0 10011011 23 0 73 0 00010111 26 0 14 0 10011010 24 0 75 0 00011000 25 0 13 0 10011001 25 0 77 0 00011001 24 0 11 0 10011000 26 0 78 0 00011010 23 0 9 0 10010111 27 0 80 0 00011011 22 0 7 0 10010110 28 0 82 0 00011100 21 0 5 0 10010101 29 0 84 0 00011101 20 0 4 0 10010100 30 0 86 0 00011110 19 0 2 0 10010011 31 0 87 0 00011111 18 0 0 0 1001001...

Page 14: ... times listed below are approximate The interval is adjustable in 4 hour increments from 4 to 28 hours Switch positions S1 6 7 and 8 represent a three bit binary code with a weight of 4 hrs per unit To set the interval set S1 6 S1 7 and S1 8 according to the binary number from Table 4 2 below The factory default is 24 hrs NOTE CLOSED is a zero and OPEN is a one ABC INTERVAL S1 6 S1 7 S1 8 OFF 0 0 ...

Page 15: ... routine mirror cleanings can be easily achieved However if the sample gas contaminants are particularly high more frequent mirror cleanings may be required 5 3 MIRROR CLEANING PROCEDURE Figure 5 1 When mirror cleaning is required as a periodic maintenance item or the CLN MIRR or CHK SNSR message appears on the display proceed as follows 1 Turn power off CAUTION When operating with a pressurized s...

Page 16: ...COM AIR Dew Point Monitor 04 02 2015 Rev B 16 FIGURE 5 1 SENSOR COVER REMOVED FOR MIRROR CLEANING ...

Page 17: ...to 50 C Compliance 9 0 VDC 450 ohms Display Eight Digit Alphanumeric LED 0 5 High High dew point Alarm Audible 98 dba at 2 ft Visual Flashing Message on Display Relay Contacts 1 Form C non latching 10A 240VAC 8A 24 VDC HP 240VAC Physical Dimensions 14 35 6 cm H 10 7 27 18 Kg W 3 75 9 525 Kg D Weight 7 lbs 3 18 Kg Mounting Wall mount standard Material Aluminum Standard Features Microprocessor Contr...

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