DayTronic 3500 Series, Instruction Manual

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Gain Accuracy*: ±0.025% of full scale,typical, following calibration
Gain Stability: Vs. Temperature: ±50 ppm/°C; vs. Time: ±20 ppm/month
Analog Filtering for Displayed Reading: 5-pole filter with selectable low-pass
corner frequency of 5, 10, or 20 Hz
Corner Frequency
Response at . . . 5 Hz 10 Hz 20 Hz
- 3 dB 5 Hz 10 Hz 20 Hz
-60 dB 32 Hz 65 Hz 125 Hz
Step Response Settling Time
(Full-Scale Output) 5 Hz 10 Hz 20 Hz
To 1% of final value 250 msec 125 msec 100 msec
To 0.1% of final value 400 msec 200 msec 150 msec
To 0.02% of final value 600 msec 300 msec 225 msec
Analog Peak Capture: Positive analog peak with minimum full-scale input pulse
duration of 100 msec (to 1% of full-scale accuracy), 150 msec (to 0.1% of full-
scale accuracy), and 225 msec (to 0.02% of full-scale accuracy); digitally held for
indefinite display; PEAK and TRACK modes controlled by front-panel button, rear-
panel logic input, or computer-port command
Internal 15-Segment Linearization , programmable from front panel
Analog Output: Range scalable in 0.1% increments between 74.5% and 125.5% of
nominal input.** May be sourced by conditioned input (A) after the FIXED ANA-
LOG FILTER; (B) after PEAK CAPTURE; or (C) after the SELECTABLE ANALOG FIL-
TER (see Fig. 15, Section 2.d)
Frequency Characteristics and Step-Response Settling Times:
AFTER THE FIXED ANALOG FILTER and AFTER +PEAK IN "PEAK" or
"TRACK" MODE: 3 dB down at 20 Hz; 60 dB down at 250 Hz. Settling Time
to 1% of final value: 100 msec; to 0.1% of final value: 150 msec; to 0.02% of
final value: 225 msec
AFTER THE SELECTABLE ANALOG FILTER: See "Analog Filtering for Dis-
played Reading” for the Model 3578, above.
Configuration, Full-Scale Range, Offset Range Adjustment, Allowable
Loading, Offset Accuracy, Span Accuracy, Offset and Span Drift: See the
Model 3530 LVDT Conditioner, above
A.8
A
3500 S
ERIES
S
PECIFICATIONS
A.2 I
NDIVIDUAL
C
ONDITIONER
S
PECIFICATIONS
: M
ODEL
3578
* Initial (uncalibrated) inaccuracy may be as great as ±3% of full scale. Maximum error that
could occur upon replacement of the 3578 not followed by calibration is ±6% of full scale.
** When the analog output scale is 100.0% and the analog output offset is 0.0%, then any of the
following inputs will result in an analog output of 5 V: an input of 4 mV/V on the 3.0-mV/V range;
an input of 2 mV/V on the 1.5-mV/V range; or an input of 1 mV/V on the 0.75-mV/V range.