M20013 REL-0000 (2103)
User Manual HHP460 Smart Manometer with Altimeter & Air Speed Test
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Omega Tethered Sensors
Overview of the temperature and pressure sensors
1. The P2 sensor sensor can be displayed with the P1 sensor.
2. When two sensors are displayed, no
Units
are displayed and
the
Units
key is disabled.
3. The
Zero
key is also disabled.
4. When a single sensor is selected it displays the measurement
units that were selected in HHP400 Suite.
Make an electrical connection
▪
Align the red dot on the Smart Manometer with the red dot on
the Tether cable and push in.
▪
Align the red dot on the Omega Tethered Sensors with the red
dot on the Tether cable and push in.
How to zero Absolute Sensors
Overview of the zeroing Absolute Sensors
The Smart Manometer is a stable and precise instrument.
However, on occasion the Smart Manometer should have a new
zero taken. The new zero removes a zero drift that can occur after
the Smart Manometer was last zeroed. The Smart Manometer can
be zeroed only if the new applied zero is within ± 1 % FS of the
original factory calibration zero. This prevents accidental zeroing
at atmospheric pressure or other relatively high pressures. If the
Smart Manometer is outside this limit, the Smart Manometer
cannot zero.
1.
Referenced to Absolute Zero
- This traditional and preferred
method takes a snapshot of the measured pressure when a
vacuum of less than 100 microns Absolute is applied to the
sensor.
2.
Restore Factory Zero
- This method restores the calibration
curve to the original zero taken at the factory.
Note: This feature is intended for comparison purposes, and
should not be used for real pressure measurement. This feature
does not compensate for any zero drift.
3.
User Defined Offset (Zero)
- With this method, you can
enter any pressure value when a known reference is applied
(for example: the local barometric pressure). The Smart
Manometer compares its actual measured value with the
