HP 5528A User Manual

ModelS528A
Velocily Measurements
Using Sensors
Sensor AtHachment
The Air Se n sor should already be auached. See Section 5 for instruction s.
CAU TION
To prevent po ss ible damage to the Me asu rement Display unit,
be sure you turn th e line p ower off before conenctin8 or
disconnecting any
n bl e at ih rear panel.
NOTE
Be sure to " lock" the connection s, so they won', accidentally
come undone.
Sensor Placement
In order to accurately correct for the effects of environmental and machine temperature on the
laser reading, you must locate the se nsors where they can accurately monitor the conditions
influencing the
la ser. The 10 75 1 Air Senso r (which monitors the atmospheric conditions) should
always be mounted as closely as possible to the actual MEASUREMENT PATH , 50 it can monitor
the condit ions the la se r beam is experiendr,g.
As an eJlamp le for sensor placement, let 's consider making a measurement on a mill, shown in
Figure 6-11. In Ihis ca se, it is easy to determine where the senso r should be. The 10751 Air Sensor
should
be placed nCJlt to the beam in the measurement path.
NOTE
The Air Sensor should be mounted with its ar row pointing up , to
maximize accuracy, as shown in Figure6-12. II should should al so
be lo ca ted in an ar ea with good air flow.
Adjusting For Humidify
The 10751 Air Sensor ha s a " Humidity" sw ilch on one side (opposite its conne ct ing cable ). You
must sel the switch handle to the position corresponding to Ihe relati ve humidity in the area you
are measuring. The choi ces are "25')b", "50''-:''', and "75'X/'.
7-3

HP 5528A Specifications

General

Brand	HP
Model	5528A
Category	Measuring Instruments
Language	English