Previous in Forum: I/H converter   Next in Forum: cv calculation for liquid,gas for contro lvalve
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
5 comments
Rate Comments: Nested
RAJ KUMAR
Commentator

Join Date: Aug 2008
Posts: 56

Finding a DP Transmitter

12/22/2008 12:51 AM

Dear All

I want to order an DP transmitter but I dont have its data sheet. I only know that minimum switching level required is 700 mbar and maximum switching point required is 1800 mbar. It is installed on a inlet and outlet of Air Filter. with process air as input and at output we a fan to suck the air from it.
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Anonymous Poster
#1

Re: Finding a DP Transmitter

12/22/2008 11:14 PM

As you have not explained the use of the DP transmitter I will have a guess.It looks like the DP Transmitter is being used to indicate the pressure drop/loss across the filter to trigger either automatic/manual cleaning process of the filter or indicate time for someone to replace the filter. You appear sure that it is a DP transmitter and not a DP Switch. If that is the case then you only have to contact a supplier of instrumentation with the info you have supplied here, they may ask a few more questions to get the item properly specified, questions like: temperature of the air, typical moisture content, supply voltage (24VDC?) and output signal (4-20mA or 1-5VDC), static pressure. You will probably find some info on the manufacturers' tag on the DP Transmitter, maybe the make and model. That then makes things easy for you.

Rok..
Register to Reply
RAJ KUMAR
Commentator

Join Date: Aug 2008
Posts: 56
#2

Re: Finding a DP Transmitter

12/23/2008 7:20 AM

tHIS IS THE FILTER AND DP SWITCH WHICH ACTIVATES A RELAY ( I DONT KNOW WHY) I WANT TO USE A TRANSMITTER ON IT. TELL ME IS IT FEASIBLE? SECONDLY WHAT ORDERING INFO WOULD I REQUIRE FOR ITS ORDERING?
Register to Reply
Demian @ Dwyer Inst
Participant

Join Date: Dec 2008
Posts: 1
#3

Re: Finding a DP Transmitter

12/23/2008 12:01 PM

Hi Raj

My name is Demian from Dwyer Instruments. I'm sure we can help you with your application. If you would like to give us a call to discuss this we would be more than happy to help. I would just ask you to confirm those pressure ranges though please. Could you possibly mean pascals?

Tel: 01494 461707

Fax: 01494 465102

Email: Sales@dwyer-inst.co.uk

__________________
 Tel: 01494 461707
Register to Reply
Jspeop
Power-User

Join Date: Apr 2008
Location: Texas
Posts: 120
Good Answers: 14
#4
In reply to #3

Re: Finding a DP Transmitter

12/25/2008 12:35 AM

1 mbar=100 pascals so you are just using different pressure standards.

Jim

__________________
 Jim
Register to Reply
Jspeop
Power-User

Join Date: Apr 2008
Location: Texas
Posts: 120
Good Answers: 14
#5

Re: Finding a DP Transmitter

12/25/2008 1:17 AM

Here is a selection of switches from Dwyer which I have good luck in using.

Diff. Pressure Transmitter Series 616 -- 616-10

 Current Mechanical Differential 0.0 to 2068 0.500 Gas 20 to 120 Black abs housing, span & zero adj., dual barbed pressure ports

Diff. Pressure Transmitter Series 616 -- 616-11

Contact Supplier:

Get Product Information:

Diff. Pressure Transmitter Series 616 -- 616-11

 Current Mechanical Differential 0.0 to 3447 0.500 Gas 20 to 120 Black abs housing, span & zero adj., dual barbed pressure ports

Diff. Pressure Transmitter Series 616 -- 616-12

Contact Supplier:

Get Product Information:

Diff. Pressure Transmitter Series 616 -- 616-12

 Current Mechanical Differential 0.0 to 6895 0.500 Gas 20 to 120 Black abs housing, span & zero adj., dual barbed pressure ports

Diff. Pressure Transmitter Series 647 -- 647-8

Contact Supplier:

Get Product Information:

Diff. Pressure Transmitter Series 647 -- 647-8

 Current Mechanical, Capacitive Differential 0.0 to 2068 1.000 Liquid, Gas Temp Comp 32 to 122 Variable capacitance, NEMA 4 enclosure, 18-30vdc input, temp. compensated

Fixed Range Diff. Pressure Transmitter -- 636D-2

Contact Supplier:

Get Product Information:

Fixed Range Diff. Pressure Transmitter -- 636D-2

 Voltage*, Current Mechanical Differential 0.0 to 2068 0.500 Liquid, Gas, HazMat Temp Comp -40 to 140 Explosion proof, compatible with liquids, gases and vapors

Fixed Range Diff. Pressure Transmitter -- 636D-3

Contact Supplier:

Get Product Information:

Fixed Range Diff. Pressure Transmitter -- 636D-3

 Voltage*, Current Mechanical Differential 0.0 to 4137 0.500 Liquid, Gas, HazMat Temp Comp -40 to 140 Explosion proof, compatible with liquids, gases and vapors

Fixed Range Diff. Pressure Transmitter -- 636D-4

Contact Supplier:

Get Product Information:

Fixed Range Diff. Pressure Transmitter -- 636D-4

 Voltage*, Current Mechanical Differential 0.0 to 6895 0.500 Liquid, Gas, HazMat Temp Comp -40 to 140 Explosion proof, compatible with liquids, gases and vapors

Fixed Range Diff. Pressure Transmitter -- 636D-5

Contact Supplier:

Get Product Information:

Fixed Range Diff. Pressure Transmitter -- 636D-5

 Voltage*, Current Mechanical Differential 0.0 to 10342 0.500 Liquid, Gas, HazMat Temp Comp -40 to 140 Explosion proof, compatible with liquids, gases and vapors

Fixed Range Diff. Pressure Transmitter -- 636D-6

Contact Supplier:

Get Product Information:

Fixed Range Diff. Pressure Transmitter -- 636D-6

 Voltage*, Current Mechanical Differential 0.0 to 13790 0.500 Liquid, Gas, HazMat Temp Comp -40 to 140 Explosion proof, compatible with liquids, gases and vapors

Fixed Range Diff. Pressure Transmitter -- 636D-7

Contact Supplier:l

Get Product Information:

Fixed Range Diff. Pressure Transmitter -- 636D-7

 Voltage*, Current Mechanical Differential 0.0 to 20684 0.500 Liquid, Gas, HazMat Temp Comp -40 to 140 Explosion proof, compatible with liquids, gases and vapors

Fixed Range Diff. Pressure Transmitter -- 636D-8

Contact Supplier:

Get Product Information:

Fixed Range Diff. Pressure Transmitter -- 636D-8

 Voltage*, Current Mechanical Differential 0.0 to 34474 0.500 Liquid, Gas, HazMat Temp Comp -40 to 140 Explosion proof, compatible with liquids, gases and vapors

Pressure Transmitter Series 620 -- 620 620-1000

Contact Supplier:

Get Product Information:

Pressure Transmitter Series 620 -- 620 620-1000

 Current Mechanical Differential 0.0 to 2491 0.500 Gas Digital 20 to 120 1/16 DIN housing, LCD readout, 2,3,or 4 wire

Pressure Transmitter Series 620 -- 620 620P-100

Contact Supplier:

Get Product Information:

Pressure Transmitter Series 620 -- 620 620P-100

 Current Mechanical Differential 0.0 to 6895 0.500 Gas Digital 20 to 120 1/16 DIN housing, LCD readout, 2,3,or 4 wire

Pressure Transmitter Series 620 -- 620 620P-30

Contact Supplier:

Get Product Information:

Pressure Transmitter Series 620 -- 620 620P-30

 Current Mechanical Differential 0.0 to 2068 0.500 Gas Digital 20 to 120 1/16 DIN housing, LCD readout, 2,3,or 4 wire

Pressure Transmitter Series 620 -- 620 620P-50

Contact Supplier:

Get Product Information:

Pressure Transmitter Series 620 -- 620 620P-50

 Current Mechanical Differential 0.0 to 3447 0.500 Gas Digital 20 to 120

Hope this helps.

Jim

__________________
 Jim
Register to Reply
Register to Reply
Have a Different Question?
5 comments
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); Demian @ Dwyer Inst (1); Jspeop (2); RAJ KUMAR (1)

Previous in Forum: I/H converter   Next in Forum: cv calculation for liquid,gas for contro lvalve

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Instrumentation:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (68 right now)
Show Members
Advertisement