Table of Contents
Advertisement
MODEL 7561-PSDS
Issue A
PORTABLE SENSOR DISPLAY – STRAIN BRIDGE
008-0752-00
Key Concepts
Calibration Ranges
There are six calibration ranges available that can be individually calibrated for use
with strain bridges that do not have TEDS capability.
These ranges can be used for connecting to different strain bridges or for different
sections of the same strain bridge, i.e., one for compression and one for tension. The
ranges are user selectable and independent of what is physically connected to the
handheld.
The number of ranges available and the ability to switch between these ranges can all
be controlled when configuring the handheld.
Each of these ranges will remember settings that contribute to the user experience, so
settings such as selected units and tare values, etc. will be remembered and reused as
each range is selected again.
In addition, there is also support for TEDS calibration tables in TEDS capable
connected devices where the calibration information is held in the connected sensor.
The user experience settings will be remembered for the last twenty connected TEDS
sensors. There is an option to disable TEDS support on a particular TEDS enabled
sensor so the handheld calibration ranges can then be used instead.
Advanced Flexible Multi-Point Calibration
The advanced calibration system for the six calibration ranges supports a very flexible
calibrate-return-calibrate model where a calibration range can be revisited at any
time, and individual points can be added or deleted. There is also no restriction on
the order that calibration points can be added in terms of input value. Points can be
added in ascending, descending or random order of input magnitude.
A simple alternative to multi-point calibration is gain & offset, where the gain and
offset values are supplied by the user:
Calibrated Output = offset + gain × input
More flexible polynomial calibration is also supported where x is the m/V input and
the coefficients a, b, c, d, e, ... are supplied by the user:
Calibrated Output = a.x0 + b.x1 + c.x2 + d.x3 + e.x4 + ...
Display Modes
Display modes determine what is visible on the LCD display and what actions are
available from the set of three soft keys (Keys whose functions are dynamic and will
change depending on what mode is being viewed and local conditions).
There are up to six available display modes that can be cycled through and can be
selected from a library of different scenarios when using the Toolkit to configure the
handheld.
These display modes are independent to whatever Calibration Range is currently
selected.
Model 7561-PSDS User Manual |
sps.honeywell.com/ast
| 6
Advertisement
Table of Contents
