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Air Monitor Corporation AMC POWER VELTRON DPT, Инструкция по установке, эксплуатации и обслуживанию

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VELTRON DPT

Air Monitor Corporation

116-009-70.P65 (09/18/09)

VELTRON DPT - IO&M Manual

14

7 – MAINTENANCE

SECTION 7 – MAINTENANCE

The VELTRON DPT is a solid state device having no mechanical parts requiring special periodic maintenance.  The
following maintenance steps are not requirements, but guidelines for establishing a maintenance program for your
specific installation.

Operating experience should be used to set frequency of specific types of maintenance.

7.1 – CLEANLINESS

– Verify condensation (or other sources of liquids) are not present inside the VELTRON DPT.

7.2 – MECHANICAL

– Verify pressure signal connections are secure.
– Inspect pressure signal lines for any cracks or leaks.
– Verify mounting hardware is secure.

7.3 – ELECTRICAL

– Periodically inspect all wiring to the VELTRON DPT for good connections and absence of corrosion.

7.4 – CALIBRATION

– VELTRON DPT should have calibration verified annually as a minimum.

Содержание AMC POWER VELTRON DPT

Страница 1: ...ter Installation Operation Maintenance Air Monitor Corporation provides complete technical support between the hours of 7 a m and 5 p m PST M F Contact our Service Department Toll Free 1 800 AIRFLOW or fax us at 1 707 526 2825 Air Monitor Corporation 116 009 70 P65 09 18 09 VELTRON DPT IO M Manual ...

Страница 2: ......

Страница 3: ... 3 4 CONTINUOUS DISPLAY OF PROCESS Optional 3 3 5 HIGHTURNDOWN RATIO OPERATION 3 3 6 HAZARDOUS LOCATIONS 3 3 7 ENCLOSURE 3 SECTION 4 INSTALLATION 4 1 RECEIVINGAND INSPECTION 4 4 2 LOCATION 4 4 3 MOUNTING 5 6 4 4 PROCESS CONNECTIONS 7 8 4 5 POWER SIGNAL CONNECTIONS 9 SECTION 5 OPERATION 5 1 START UP 10 5 2 NORMALOPERATION 10 5 3 SETTING SIGNALNOISE FILTER 10 SECTION 6 CALIBRATION 6 1 REQUIRED EQUIP...

Страница 4: ...l be for the time remaining on the warranty period of the original components Purchaser shall notify Seller in writing of such defect within sixty 60 days of discovery of the defect This warranty does not extend to any product sold by Seller which has been the subject of misuse neglect accident damage or malfunction caused by interconnection with equipment manufactured by others improper installat...

Страница 5: ... digital display provides local indication of the measured process in appropriate engineering units i e IN w c CFM lb hr etc A pair of test terminals exist on the output terminal board that can be used for calibration and test purposes 1 2 THEORY OF OPERATION High and low pressure signals generated by airflow stations and probes or static pressure sensors act upon opposite sides of a flexible diap...

Страница 6: ...Operating Humidity Limits 0 95 RH non condensing 2 1 TRANSMITTER Type Differential Pressure Ranges Natural Full Span Min Calibrated Span 0 to 10 00 IN w c 0 to 4 00 IN w c 0 to 5 00 IN w c 0 to 2 00 IN w c 0 to 2 00 IN w c 0 to 0 80 IN w c 0 to 1 00 IN w c 0 to 0 40 IN w c 0 to 0 50 IN w c 0 to 0 20 IN w c 0 to 0 25 IN w c 0 to 0 10 IN w c 0 to 0 10 IN w c 0 to 0 04 IN w c Accuracy 0 5 of Natural ...

Страница 7: ...INUOUS DISPLAY OF PROCESS optional The VELTRON DPT transmitter can be optionally equipped with a 3 digit LCD display to provide a continuous readout of the measured process in engineering units Inches w c SCFM lbs hr etc 3 5 HIGH TURNDOWN RATIO OPERATION The VELTRON DPT transmitter with its high level of accuracy can maintain linear output signals on applications requiring velocity turndown of 5 t...

Страница 8: ...heet is correct for your application If not contactAir Monitor s Customer Service Department at 1 800 AIRFLOW for further guidance Note The VELTRON DPT has been configured and calibrated to customer specified parameters see Factory Setup Information Sheet and requires no additional calibration verification prior to installation 4 2 LOCATION The VELTRON DPT is housed in a NEMA Type 4X enclosure whi...

Страница 9: ...ting the VELTRON DPT is utilizing the included Mounting Bracket Kit Figure 4 1 shows how the various components are assembled and Figure 4 2 depicts a variety of mounting orientations Figure 4 1 CAUTION Do not rotate the electronics enclosure relative to the base Internal signal tubing could become twisted or kinked causing possible transducer overpressurization voiding warranty ...

Страница 10: ...al 6 SECTION 4 INSTALLATION 4 3 MOUNTING con t If using the Mounting Bracket Kit Figure 4 2 depicts a variety of mounting orientations Figure 4 2 CAUTION VELTRON DPT should not be mounted solely by the process connections or electrical conduit which do not provide sufficient support ...

Страница 11: ...ion 116 009 70 P65 09 18 09 VELTRON DPT IO M Manual 7 4 4 PROCESS CONNECTIONS The VELTRON DPT has two 1 4 18 FPT process connections at 2 1 8 center to center on the bottom of the stainless steel base Figure 4 3 SECTION 4 INSTALLATION ...

Страница 12: ... VELTRON DPT for positive room pressurization connections must be completed as follows High Port on VELTRON DPT connects to sensor from monitored room Low Port on VELTRON DPT connects to reference sensor When connecting VELTRON DPT for negative room pressurization connections must be completed as follows High Port on VELTRON DPT connects to reference sensor Low Port on VELTRON DPT connects to sens...

Страница 13: ...be driven will depend on the power supply voltage see Figure 4 4 Figure 4 4 All electrical connections are done at the terminal strip located under the Terminal Side cover Wiring should be routed through one of the 3 4 14 NPT conduit connections It is recommended that wiring be 14 AWG to 22 AWG The Power Signal wires should be connected to the terminals labeled POWER INPUT in accordance with Figur...

Страница 14: ...ss 5 2 NORMAL OPERATION With Start Up Section 5 1 complete the VELTRON DPT will continue to output and display if provided the monitored process without any further user interface 5 3 SETTING SIGNAL NOISE FILTER If the VELTRON DPT s output and display if provided are continuously fluctuating due to a pulsating noisy process signal the user can slow the unit s response to these fluctuations by incr...

Страница 15: ...REQUIRED EQUIPMENT 1 Digital Manometer capable of reading to the nearest 0 001 w c 2 Digital Multimeter DMM 3 Source of clean dry instrument air 4 Adjustable low pressure air regulator such as Air Monitor s Low Pressure Air Source or equal 6 2 PREPARATION 1 Turn power to VELTRON DPT off 2 Remove total and static pressure signal lines at the VELTRON DPT 3 Remove terminal side cover and circuit side...

Страница 16: ...board DMM should read 4 00 0 01mADC Adjust as necessary using OUTPUT ZERO R4 on Terminal board 5 Apply input pressure as read on manometer to the High port of the VELTRON DPT Adjust pressure according to the following For Positive differential pressure spans The maximum calibrated span value as indicated on the Factory Set Up Information Sheet For Negative differential pressure spans The positive ...

Страница 17: ...Adjust as necessary using XMIT SPAN R3 on Terminal board 9 Verify the LCD display if so equipped reads the desired maximum process value Adjust as necessary using SPAN R1 on Display board until desired reading 001 is achieved 10 Repeat Steps 1 through 9 as necessary until no further adjustments are required to either zero or span 11 Remove test equipment and replace terminal side and circuit side ...

Страница 18: ...ific installation Operating experience should be used to set frequency of specific types of maintenance 7 1 CLEANLINESS Verify condensation or other sources of liquids are not present inside the VELTRON DPT 7 2 MECHANICAL Verify pressure signal connections are secure Inspect pressure signal lines for any cracks or leaks Verify mounting hardware is secure 7 3 ELECTRICAL Periodically inspect all wir...

Страница 19: ...ion 9 Using a DMM set for DC voltage measure between TP0 GND black and pin 4 XDCR of P2 on Terminal Board see Figure 4 5 With full positive differential pressure applied DMM should read 0 7 0 3VDC If DMM does not read 0 7 0 3VDC replaced Transducer Board If DMM reads correctly measure DC voltage between TP0 GND black and TP1 XMIT brown on Terminal Board With full differential pressure still applie...

Страница 20: ...onents of the VELTRON DPT that are easily replaced by the user To inquire about price and available of a specific part number please contact the Customer Service Department at Phone 1 707 544 2706 Fax 707 526 2825 1 800 AIRFLOW When contacting the Customer Service Department about parts please have the applicable Factory Set Up Informa tion sheet available for reference ...

Страница 21: ...ssible ensure equipment is packaged sufficiently to protect it during shipment CAUTION All damage occurring during transit is the Customer s responsibility List the Return Authorization R A number on the packing list and clearly mark this number on the outside of each shipping container Costs associated with return of equipment to Air Monitor are the customer s responsibility regardless whether th...

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