Ion Science Hydrosteel 6000 - Manual (Page 8)

Hydrosteel 6000 MANUAL Ion Science Ltd
Page 8 of 39
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About Hydrosteel 6000
HT-R: High Temperature – Roaming Probe
This utilises a small collector plate to give the instrument the maximum dynamic range commonly required
with hot steel for which hydrogen permeation is enhanced. The roaming probe is magnetically attachable to
steel of at least 8 in., 20 cm diameter, and has an operating temperature range extending to 500
o
C, 930
o
F.
The probe is sufficiently small to access steel through standard inspection ports.
AT-S: All Temperature
– Stationary Probe
This probe is 6 inches in diameter and designed to be semi-permanently attached to a steel surface, down to
2 inches in diameter, for frequent monitoring at the same site. The probe can be attached to steel at
temperatures up to 500

C, 930

F.
HT-S: High Temperature
– Stationary Probe
This small collector is designed for semi-permanent attachment to pipe bends and other curved areas, where
corrosion can be significant, and steel pipes with a diameter as small as 1.5 in., 4 cm, at temperatures up to
500
o
C, 930
o
F.
Notes: When changing probe you should re-programme the instrument during start-up, as described in
Section
– System Assembly and Start-up. Maintenance and replacement of the probes is described in
Section – Probe Plate Replacement.
Deployment Methods
Hydrosteel 6000 can be deployed to meet several different objectives as described below.
Hydrogen flux search
The Hydrosteel analyser has a real time display of flux which can be used to search for sites of hydrogen
permeation. Since the analyser commences measurement at the time of attachment to a surface, and a 50%
response is achieved in approximately 20 seconds, prospective hydrogen permeation at a given site can be
established within this time. An extension arm can be used to deploy the collector to a surface some 6 ft (2
m) beyond normal reach.
Spot measurements
Once a site of interest has been located, the hydrogen flux can be measured within a period of one minute. It
may be convenient to log the measurement using the handheld H
ydrosteel ‘short log’ facility. Whilst waiting
for the measurements to be logged, the handheld analyser can be attached to the steel pipe under test using
its magnetic leather case. This procedure allows you to make notes or demarcate the site for re-testing in
the future.
Continuous monitoring
A site can be monitored for up to the lifetime of the batteries using the Hydrosteel ‘long log’ facility (see
Section
– Using the Data Logging Facility). Logging can be extended indefinitely using external power (see
Section – Using an External Power Supply).
Zone Programming
When performing the above measurements data can be logged with respect zone or area of test. Available
to the user are 199 zones that act as memory tags for saved logs. Each zone can be named with a 64-
character header.
Calibration Check Facility
Hydrosteel is calibrated in-house, but the equipment is offered with a function test facility to enable you to
check that your equipment is performing within specification. Please refer to Section
– Checking System
Performance for the check procedure.