FUTEK IPM500 (D500) Digital Display - Manual (Page 18)

18
12. LOAD CELL & MICROVOLT INPUT
Notes 1.
See Section 19 to select 10V excitation.
2. Jumpers are 2.5 mm (0.1 in).
SCALE & OFFSET SETUP
For DC microvolt meters
, a scale factor of 1 and an offset of 0 are used for direct readings in
microvolts or millivolts. Decimal point selection does not affect the displayed digits. For
example, 20 mV can be displayed as 20.000 mV or 20000 µV. The decimal point is set
separately.
For load cell applications,
scaling is set up from the front panel using the and keys. The
meter allows three scaling methods to be selected: 1). Manual scale and offset, 2) Coordinates
of 2 points
, and 3) Reading coordinates of 2 points. Please see the Glossary for an explanation
of each method.
The Load Cell and Microvolt meters utilize the load cell signal conditioner board, which offers
sensitivity to ±20 mV full scale and 4 or 6-wire load cell connection. This board needs to be
configured via jumpers for the desired voltage range. All signal ranges are factory calibrated
with calibration factors stored in EEPROM. The meter software recognizes the board and will
bring up the appropriate menu items for it; however, it does not recognize the jumper settings.
Please see further manual sections for setup of the following features: relay output (16),
analog output (17), communications (18), and transducer excitation output (19).
RANGE SELECTION VIA JUMPERS
Ranges & Display with
Scale Factor = 1
Input Jumpers
Full scale
display
±20 mV
±50 mV
±100 mV
±250 mV
±500 mV
e
a
b
c
d
±20000
±50000
±10000
±25000
±50000