Question 1

manual for using

Accepted Answer

My gauge manifold did come with a brief overview of the functions and button layout etc. It was not a in depth, exhaustive reference guide. Most of my actual knowledge was from putting it to work. It's honestly not a complicated tool. You can find the over view I received with my manifold here:http://www.fieldpiece.com/media/manuals/Opman-SMAN360-v05.pdf

Question 2

there has been many questions about the accuracy of digital gauges. is everyone finding these to be relieable

Accepted Answer

I've got several sets of these manifolds,  they are more accurate than the old style manifolds.  
Especially in situations where rapid pressure change takes place in a split second, such as noncondensables are in a system.

I've seen people who've had this come up, say they are slow and question their accuracy due to the "lag" in digital screen change, the reality of it is the older manifolds only show a quick split second bump or jump in the needle that if not closely watching for it you'll miss it all together.

Bought my first set of the SMAN 3's back in 2012 when they first came out.

No other manufacturer stands behind their warranty like Fieldpiece Instruments does, nobody,  they have the best warranty department in the industry hands down

Question 3

How often does the gauges need to be calibrated ? And can it be done by owner ?

Accepted Answer

You calibrate them to atmospheric pressure,or to a known pressure, but havent needed to do it. But the calibration adjustment screws are on the front cover.

Question 4

How far down will the built in micron gauge read?

Accepted Answer

The micron gauge is useless it’s not accurate. I have two sets and  neither one works  accurately .but to answer yourQuestion ,mine goes down to 2  microns . Yep 2

ASIN	B00M9GPZR6
Best Sellers Rank	#559,236 in Automotive ( See Top 100 in Automotive ) #97 in Air Conditioning Manifolds
Brand Name	Fieldpiece
Customer Reviews	4.4 4.4 out of 5 stars (173)
Global Trade Identification Number	00872641003128
Included Components	Digital Manifold
Item Dimensions	5.25 x 10.5 x 12.5 inches
Item Type Name	Digital Manifold
Item Weight	4.9 pounds
Manufacturer	Standard Plumbing Supply
Material Type	Plastic
Model	SMAN360
Number of Items	1
Part Number	SMAN360
UPC	872641003128
Unit Count	1 Count

Fieldpiece SMAN360 3-Port Digital Manifold with Micron Gauge

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