Model Code
Appendix B: Model Code Explanation
46
Full Scale Range (XXX)
The full scale range is indicated by a three character code.
Full Scale Range
Ordering Code
0.05*
U5T
0.1**
.1T
1
01T
2
02T
10
11T
100
12T
1000
13T
*Available on 627 and 629 units only
** Available on 627, 628, and 629 units only
Fittings (Y)
The choice of fittings is designated by a single letter code.
Fittings
Ordering Code
½ inch (12.7 mm) tubulation
A
Swagelok 8-VCR, female
B
Mini-CF, rotatable
C
NW-16-KF
D
Swagelok 8-VCO, female
E
Accuracy (Z)
The accuracy is designated by a single number code.
Accuracy
Ordering Code
±
0.12% of Reading, standard for Type 627, 628 and 629
(1, 2, 10, 100, 1000 Torr ranges only)
C
±
0.15% of Reading,
optional for Type 622 and 626 (10, 100 and 1000 Torr only)
standard for Type 627 and 629 (0.05 and 0.1 Torr only)
D
±
0.25% of Reading, standard for Type 622 and 626
E
±
0.5% of Reading, standard for Type 628 (0.1 Torr only)
F
