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Helios PD2-6100 Strain Gauge, Load Cell, and mV Meter
Setting the Input Signal (Input)
Enter the Input menu to set up the input polarity,
range, ratiometric operation, and dual-scale feature.
The meter is capable of accepting any signal from -
250 to 250 mV in bipolar mode or up to 300 mV in
unipolar mode.
After selecting "Yes" or "No" for ratio, d-SCAL is
displayed. Selecting "Yes" enables the dual-scale
feature, allowing scaling of the same input in two
different scales (for PV1 & PV2) or displaying the
percentage of PV1.
Input Polarity Selection (PoLAR)
Select unipolar operation for inputs in ranges from 0 to
300 mV and select bipolar operation for inputs in
ranges from -250 mV to +250 mV. This setting
determines the selectable ranges for the millivolt input.
NOTE: Refer to Switch Configuration on page 17
for proper configuration switch positioning.
Range Selection (RANGE)
This menu is used to select the input range. The
selections listed are determined by the Polarity setting.
Unipolar mode: 0-15 mV, 0-30 mV,
0-150 mV, 0-300 mV
Bipolar mode: ±15 mV, ±25 mV, ±150 mV, ±250 mV
NOTE: Refer to Switch Configuration on page 17
for proper configuration switch positioning.
Ratiometric Operation (ratio)
Ratiometric operation corrects the measured strain
gauge signal for up to ±5% variation of either the
internal or external excitation power supply. In order to
use the ratiometric operation, the ratiometric operation
menu must be set to yes (YES).
Dual-Scale (d-sCal)
The mV input can be displayed in two different scales,
by enabling the dual-scale feature in the Setup-Input
menu. See Dual-Scale (d-sCal) on page 28.
To enable the dual-scale feature you must select
d-SCAL in the Input selection menu.
Setting the Display Units (units)
Enter the pre-defined engineering unit or custom unit.
The pre-defined units have automatic conversion
factors. This unit will be displayed if d unit is
selected as the lower display parameter. See Setting
the Display Parameter & Intensity (dsplay) flow chart
on page 32 to access the display menu to show the
unit on the lower display.
The custom unit may also be used to enter a display
tag.
Pre-defined engineering units: lb, kg, ounce, gram,
ton (short), tonne (metric ton). The meter converts the
reading according to the unit selected
(e.g. 100.00 lb = 45.36 kg = 45359.2 g = 1600 oz).
Unit Conversions: After scaling values in the Scale
menu have been entered during setup, automatic unit
conversions are done when switching from any
standard unit to any other standard unit during future
changes of the Units menu.
Once a standard unit has been selected in the units
menu, the user must then set their scaling values for
that unit (under the setup menu) in order for that unit's
conversion factor to take effect. Otherwise, the meter
will allow the user to freely switch between standard
unit selections, without applying a conversion factor.
Note that if the dual-scale feature is selected in the
Setup menu, both PV1 and PV2 will be converted
from the original standard unit to the new standard
unit. A scaled PV not scaled for the selected units
must be reprogrammed. Example: If PV 1 is scaled
for pounds, and PV 2 scaled for gallons; if the units
selection is changed from Lb to ounce, PV 2 will need
to re-scaled manually back to gallons.
Note: PV1 and PV2 may use different standard units
as starting points, however the user must select the
unit and complete scaling for both PV1 and PV2
individually. For example, set PV1 equal to "Lbs" and
complete the scaling for PV1 only. PV1 is now
reading in Lbs. Then, change the units for PV2 to be
"Kg" and complete the scaling for PV2.
28
Instruction Manual
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