3KP64 - 1.2
3000PLUS WITH 5D64 INSTRUCTION MANUAL V. SB.2
Daytronic Corporation
2211 Arbor Blvd. Dayton, OH 45439 • (800) 668-4745
Tel: (937) 293-2566 • Fax: (937) 293-2586 • www.daytronic.com
stable, remotely sensed excitation of ±5 VDC ± 0.02% is
provided for DC-to-DC LVDT's, potentiometer-type sen-
sors, and other transducers that may require it. With an
externally powered transducer, input isolation yields an
operating common-mode range of up to 1500 V (when
using the regulated excitation provided by the 5D64
module, see Table 1, below).
Exceptional signal stabili-
ty and accuracy over a remarkably wide range of sen-
sor inputs are achieved through
• precisely regulated, remotely sensed excitation
• chopper-stabilized low-drift amplification
• configurable low-pass active filtering
• “absolute” software-based calibration
• effective signal isolation & ESD protection
Plugging into the rear of the 3000PLUS meter, the 5D64
connects directly to its source strain gage sensor via
simple screw-terminal pinout (see Fig. 3). High output
accuracy over a wide temperature range guarantees
repeatable sensor signal integrity. For steady indication
and smooth, dependable control action, the conditioner
provides a true average value of the measured variable,
even in the face of substantial dynamic content.
The 5D64 features
• Powerful user-selectable low-pass active filter-
ing
for removal of unwanted high-frequency mea-
surement-signal components and the elimination of
aliasing errors
• High input impedance on all ranges to eliminate
cable resistance as a source of error (allowable
cable length has virtually no practical limits)
• High noise rejection, eliminating errors from com-
mon-mode pickup and ground-loop coupling, with
1. INTRODUCTION
1500 VAC isolation between input and output termi-
nals and between I/O and power supply / communi-
cations terminals
• High ESD immunity and extensive EMI protec-
tion
further assure data integrity in harsh industrial
environments
Internal “ABSOLUTE” CALIBRATION ensures high accu-
racies, without elaborate trial and error procedures.
Thus, to calibrate the 3000PLUS meter’s installed 5D64
module, you need only use the front-panel menu or
configuration software to specify the desired relation-
ship between the measured engineering units and the
±5-VDC output, given the full-scale voltage range for
which it is currently set. If the received input is to repre-
sent an analog of some parameter other than voltage
itself, you will also have to enter transducer sensitivity
and range information (as explained in Sections 3.B and
4.E). A zero offset term may also be entered,
expressed either in engineering units or millivolts.
Conventional TWO-POINT (DEADWEIGHT) CALIBRA-
TION may be applied, if desired, to improve on the
“absolute” calculations, when there are at least two
independently and accurately known calibration points
(“ZERO” and “SPAN”). Internal symmetry trimming is
also available for negative-domain slope adjustments of
up to ±2% of full scale, along with internal midscale lin-
earity correction, both positive and negative.
Guaranteed “absolute” calibration accuracies for a
properly configured 5D64’s input ranges are given in
Table 1, below.
By virtue of the unusually high stability
of the 5D64 instrument, even higher accuracies can be
achieved with additional high-precision two-point cali-
bration.
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