Specifications - Micromeritics Gemini VII 2390a Operator's Manual

Specifications

Specifications
The analyzer has been designed and tested to meet the following specifications:
Characteristic
Surface Area:
Pore Volume:
Pressure Measurement
Range:
P/Po Resolution:
Relative Pressure Range:
Pressure Resolution:
Accuracy and Linearity:
External:
Temperature:
Humidity:
1-8
Applicability
2
From 0.1 m , total
2
From 0.01 m /g, specific
-6 3
From 4 × 10 cm /g
Pressure Measurement
0 to 950 mmHg
-4
< 10
0 to 1.0 P/Po (adsorption only)
< 0.1 mmHg
Better than ± 0.5% (full scale)
(Transducer manufacturer's specification)
Vacuum System
Vacuum source achieving 20 × 10
inlet for oil-based or oil-free pumps.
For oil-based pumps, an anti-suckback valve is required to prevent oil
from being admitted into the Gemini should there be a power failure. A
device to reduce oil vapor backstreaming is also recommended.
Environment
10 to 35 ºC (50 to 96 ºF) operating
0 to 50 ºC (32 to 122 ºF) non-operating
20% to 80% relative, non-condensing
Specification
-3
mmHg (or better) at the instrument
239-42828-01 - Dec 2012
Gemini VII