looking for an inexpensive loop calibrator

[Div_by_zero 1]

Looking for a cheap, simple loop calibrator. I intend to it as a simulator to check analog code...for example when temperature climbs above a trip point, do I get an alarm or not, things like that. For this reason, extreme accuracy is not needed, and I would hate to drop $900+ on something like a Fluke 707. Also, due to the fact that I often have multiple analog inputs on a panel and they often work together with each other in the code, low cost is even more important as I would like to get a few of them, as many as 4. Any suggestions? Thanks.

[Mendon Systems 22]

These do work and they're not expensive but not the quality of a Fluke either. They have a couple of different models. http://www.ebay.com/itm/H706-Process-Loop-Calibrator-DC-Current-Source-Meter-/130600016484?pt=LH_DefaultDomain_0&hash=item1e685e1a64

[MrAutomation 20]

http://www.ebay.com/itm/DC-Current-Source-Process-Loop-Calibrator-True-RMS-Multimeter-2in1-H787/301519673414?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D28773%26meid%3D765d2f59280543eea6ffbe21de93f687%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D130600016484&rt=nc This one is an exact clone of a Fluke 789. It even looks the same. I bought one of these after I lost my Fluke 789. These days I find myself spending most of my time sitting at a computer, often doing remote access work, so I couldn't justify spending $1100-$1200 on a 789 again. So far the knock-off has served me well, and has been accurate to at least 1%, if not better. It even has the "Loop Power" feature of the Fluke 789, where you can power up and test a transmitter with your meter. Edited 13 Feb 2015 by MrAutomation

[Mickey 71]

See links.. http://www.theautomationstore.com/analog-simulator/ http://www.plccable.com/milliamp-current-volt-generator-4-20-ma-0-10-vdc-epro-with-case-leads/ Edited 15 Feb 2015 by Mickey

[Div_by_zero 1]

Mickey, Absolutely perfect, exactly what I was looking for, thanks! MrAutomation, I've been interested in that "other yellow brand" for a while now. How close to the real deal (Fluke) do you feel those are? What, if anything, makes them weaker than a Fluke? NOT to knock Fluke in any way/shape/form, but certainly a finite percentage of what we pay for Fluke equipment is for the name itself. Thanks.