Search results for query: *

These are step drills or unibits: http://www.tradetufftools.com/index.php?main_page=index&cPath=217_336&gclid=CN6pwdaW448CFRGCGgod6lUzCQ Great for non critical sized panel work, best used in a drill press w/ depth setting as to be safe. Greenlee punch set for consistant results for standard...

Another reason to use 4-20 ma is for explosion proof applications, with fusing and voltage limiting as to stay below max VA power limits for group and division clasification. Source series fused at say .05 A and followed by a Transorb AC clamp diode, intrinzic safty block. Dennis McHenney...

http://www.automationmedia.com/AutomationMediaOPCServers.asp Dennis McHenney mchenney@mindspring.com

OPC program (Ole for Process Control) http://www.google.com/search?hl=en&rlz=1T4TSHB_enUS248US248&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=OPC+linux&spell=1 Dennis McHenney mchenney@mindspring.com

http://en.wikipedia.org/wiki/Transient_voltage_suppression_diode Transorbs are great for this. Dennis McHenney mchenney@mindspring.com

1) Each atom trys to keep the same number of electrons circling it's nuculus, staying in balance with other surrounding atoms. But the actual number is dynamic. 2) An outer ring FREE electron flys out of orbit in one atom and FLOWs to another atom that attracts and captures it into orbit. A...

Anyone else having problems with this? Dennis McHenney mchenney@mindspring.com <dmchenney@merkle-korff.com> <mchenney@mindspring.com>

CIMplicity HMI -to multi GE VersaMax MICRO on two RS-485 multidrops Anyone done this before and have any insight and pitfalls to pass along! I have worked with both, but never over RS-485 (single & multi server - resource Ethernet TCP/IP and single RS-232 I have done). I have dual port Quatech...

SPARE AB PLC-2/20 PARTS 2 complete operational double rack systems removed from PLC upgrade and a 1770-TA programming terminal ITEM (CAT NO / PN ) Quantity POWER SUPPLY, CPU and RAM MOD 1772-LP2 ser A 1772-MEB 2 16 Slot Rack P/N...

I did not say FOR SALE here! Have tried that with no response. May give to someone in need, if they cover the shipping and handling. I may try ebay before I do that though, now that you mentioned it. Dennis McHenney mchenney@mindspring.com <dmchenney@merkle-korff.com&gt...

SPARE AB PLC-2/20 PARTS 2 complete operational double rack systems removed from PLC upgrade and a 1770-TA programming terminalITEM (CAT NO / PN )QuantityPOWER SUPPLY, CPU and RAM MOD 1772-LP2 ser A 1772-MEB216 Slot Rack P/N 635226-0128 Slot Rack P/N 635224-012PLC-2 I/O Adapters...

If good enough for your needs, use Krylon Clear Acrilic spay from your local HW store. Multi coats. Dennis McHenney mchenney@mindspring.com <dmchenney@merkle-korff.com> <mchenney@mindspring.com>

try http://www.asresearch.com/ Dennis McHenney mchenney@mindspring.com <dmchenney@merkle-korff.com> <mchenney@mindspring.com>

For a GE VersaMax micro the first 8 HS inputs are configured as an A-Quad-B quadature input with A, B and HOME signals being applied. Examples are in the HW and VersaPro SW manuals. You get: Angular POSITION (EXAMPLE, for 360 line encoder = 1 / 1440 per revolution, 1/4 deg) Direction of...

EE needs NOISE test help I am looking for a low cost off the shelf equipment to do production NOISE testing of small motors and gearmotors as part of an EOL functional one output shaft revolution test. The output would feed a GO-NO GO result to PLC input(s) or via PLC serial port. After 2.5 to...

<dmchenney@merkle-korff.com> Has anyone ever used a PC sound card and the available share/freeware,or very low cost SW to do this? I know this is an option, but not sure how good it is? Can an OFF THE SHELF noise cancellation microphone system be used as a front end? Dennis McHenney...

EE needs NOISE test help I am looking for a low cost off the shelf equipment to do production NOISE testing of small motors and gearmotors as part of an EOL functional one output shaft revolution test. The output would feed a GO-NO GO result to PLC input(s) or via PLC serial port. After 2.5 to...

<mchenney@mindspring.com> Looking for low cost off the shelf FFT, microphone input equipment to do limited go-no go testing of small DC gearmotors. Cycle time in 2-5 second range. Thanks PS: Also background noise cancelation microphones for front end Dennis McHenney mchenney@mindspring.com...