TEGAM Power Sensor Calibrator

Snap · 08-04-2006 -- 19:28:54

Does anyone have any experience with any of TEGAMS power sensor calibrators? From reading about them it looks like you use a lot less equipment than military procedures.

flew-da-coup · 08-08-2006 -- 08:17:17

It's true that it does not take up as much bench space. Are you guys getting one?

Snap · 08-08-2006 -- 13:41:35

Yeah, we've got one on order. Will be about a month before we get it. I was just wondering if anyone here had used one.

flew-da-coup · 08-09-2006 -- 04:35:59

Let us know how you like it Snap. We are all interested in the ease of use. I was checking it out at their booth ( NCSLI, Nashville ).

Snap · 08-09-2006 -- 21:20:46

I will definately let you know all about it. I am going to try to automate it right away using Fluke Metcal software. We'll see how easy that is.

flew-da-coup · 08-10-2006 -- 05:23:39

Tegam is usually a breeze when it comes to automating with METCAL. I never had a problem with Tegam and METCAL.

Quantum · 08-24-2006 -- 22:47:55

My company has the Tegam model 1827. I am assuming this is the model you're talking about since the Tegam system II A is already automated. We have found the unit to be rugged and reliable. Having the thermistor standard and bridge circuitry integrated into one unit is very useful especially for onsite work.
We used TestStand to automate our sensor rack. Basically, the program communicates with the signal generator(s), DMM, and the power meter. The Tegram itself doesn't have a communication port, it just reacts to the input of the signal generator and readings are taken off the power meter and the DMM. You then put your results into an excel spread sheet to come up with cal factors. A label printer can be used to attach to sensor.
Some sensors are easer than others. The HP "A" model sensors are the easiest. The low power "D" model sensors can be tricky. The power out of the Tegram is too much for the sensor so a charted attenuator must be used. Accuracy of this chart is critical. The high power "B" model may require the use of an amplifier.
The unit has a SMA connector which can be easily damaged if you're not careful. I wish they had used APC 3.5 instead. The re-calibration cost is also quite pricy. Customer service is good.

Tisfurs · 09-29-2006 -- 16:08:33

So, get your Tegam system yet? I use the Tegam 1806 Dual NBS Type IV Power Meter with the M1110, M1130, M1111, and 1107-7 thermistors. They are awesome for calibrating sensors, setting power references, and measuring attenuators. Let me know how that 1827 performs for you.

Snap · 10-02-2006 -- 18:20:06

Quote from: Tisfurs on 09-29-2006 -- 16:08:33
So, get your Tegam system yet? I use the Tegam 1806 Dual NBS Type IV Power Meter with the M1110, M1130, M1111, and 1107-7 thermistors. They are awesome for calibrating sensors, setting power references, and measuring attenuators. Let me know how that 1827 performs for you.

Not yet, they delayed the shipment until the 12th of this month. They said there was a problem getting their standard back from NIST.

flew-da-coup · 10-03-2006 -- 07:12:12

I know how that is. I waited 3 months for our TVC standards to come back from NIST this past year.

Quantum · 11-15-2006 -- 21:57:00

Sending our Tegam for factory calibration. $4000.00, man thats steep.

Bryan · 02-02-2007 -- 19:33:16

We had one demo'd a while back. We were interested in testing Agilent E4412A/4413A and some of the E9000 series sensors. They ran a recently calibrated E9304 with it and it looked pretty good. They were not able to test the linearity of the things though and I have 4412A & 4413A types that run good and and get cal factors close enough to typical to satisfy me but they also fail linearity. Linearity is at 50 MHz and runs from -36 dBm to 20 dBm. In the case of my 4413 it just tops out at about 16 and more power does not have any effect. It should run up to 20. I also notice the E4412A that we have had returned recently have High range cal factors & Low range cal factors. They have several % difference between them normally.

Al-Quran · 02-18-2007 -- 10:59:31

hello to all,

we have used the TEGAM system with SureCal so far its great. its easy accurate and very easy to use. I was wondering does METCAL support TEGAM system ? do they have procedures for it or do i have to write my own custom procedures ?

thanks

step30044 · 02-19-2007 -- 13:08:49

How expensive is the system from Tegam compared to the one from Agilent?

CalLabSolutions · 02-25-2007 -- 17:41:46

Cal Lab Solutions has a Power Sensor Calibration solution that is able to test sensors using both the Tegam and Agilent test methodologies. It is also the only commercially available solution on the market capable to testing linearity on the E-Series sensors. Check them out http:\\www.callabsolutions.com