Specifications

25
CLASS
A
o r d e r i n g i n f o r m a t i o n
How to Order a Housing
Model 320 Insertion Lengths
Model 330 Insertion Lengths
(1) Confirm that the vessel has a standard 25 mm side port. Cutaway views
and dimensions are shown on pages 18 and 19.
(2) Determine whether the application will permit the use of a bulb guard
on the housing. The bulb guard design is highly recommended for all
types of applications except where the media is highly viscous. Highly vis-
cous media is prone to clog the guard area of the housing which can cau
se
err
oneous measurements.
(3) Determine how far the housing and electrode should extend for best
performance (see illustration above). For most process media the minimum
length is optimum. However, if the media is viscous and tends to thickly coat
the inner vessel wall, then a longer length that protrudes farther into the ves-
sel may provide better pH electrode performance.
(4) Choose a pH electrode from among those listed on page 12. These
rugged process pH electrodes secure to the housing with a free-spinning
threaded
retainer nut. The pH electrodes must be ordered separately.
1.5"
38 mm
2.6"
66 mm
2.1"
53 mm
3.2"
81 mm
CLASS
B
CLASS
A
CLASS
B
usings pH Housings pH Housings pH Housings pH Housings pH H
Housing
Class
Typical Vessel Used With Used With Housing
Model Insertion Length pH Electrode Models Electrode Length Part Number
Unguarded Housings
320
A
38 mm 1.5" F-615 130 mm 320-61-H070
320
B
66 mm 2.6" F-615 160 mm 320-61-H100
Housings With Protective Bulb Guards
330 A 53 mm 2.1" F-615 130 mm 330-61-H070
330
B
81 mm 3.2" F-615 160 mm 330-61-H100
Broadley-James Corporation (U.S. & Canada) Toll-Free: 800-288-2833 E-mail: [e-mail]
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25-25mm-side_2013.pdf 1 8/11/14 10:18 AM