Daytronic 10A30-2C Handleiding

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1GENERALDESCRIPTIONANDSPECIFICATIONS

The Model 10A30-2C is for measurement of displacement, force, pressure, and other

parameters obtained with a

variable reluctance transduceror linearvariable dif-

ferential transformer (LVDT)

. Based on the synchronous carrier-demodulatorprin-

ciple, it supplies regulated, remotely sensed AC excitation for two independent

transducer channels—thus allowing direct measurement of

thickness(when the two

inputs are summed) or of

taper(when their difference is calculated). It then demodu-

lates, filters, and amplifies the resulting signals to produce system outputs precisely

proportional to LVDT core displacement. The 10A30-2C automatically adjusts to the

signal phase shift of the transducer in use, thereby insuring optimum sensitivity and

linearity. Special input provisions exist for “long-stroke” LVDT's (full-scale range of ±1

inch or greater).

ADDITIONAL10A30-2C SPECIFICATIONS

Transducer Types

: 5- or 7-wire LVDT's capable of 3280-Hz operation and having pri-

mary impedance of 80 ohms or greater (all Daytronic LVDT transducers are suit-

able); 3- or 5-wire variable reluctance transducers

Sensitivity Range: Accommodates full-scale ranges from ±0.010 in. (±0.25 mm) to

±6.0 in. (±15.24 cm), when used with Daytronic or equivalent transducers; for System

10 channel “type” codes assigned to 10A30-2C data channels, see Table 1, below

Standard Input (rms, full-scale): 78, 156, or 312 mV/V

Long-Stroke Input (rms, full-scale): 525 mV/V, 1.05 V/V, or 2.10 V/V

Excitation (per channel): Nominal 3.0 V-AC (rms) at 3280 Hz; 40 mA (rms), maximum

Amplifier (per channel):

Common-Mode Range: ±5 V operating; ±12 V without instrument damage

Common-Mode Rejection Ratio: DC and at 60 Hz: infinite; at 3 kHz: -60 dB

Input Impedance: Differential: 400 kΩ; Common-Mode: 100 kΩ

Offset: Initial: ±3% of full scale; vs. Temperature: ±20 ppm/°C; vs. Time: ±0.01%

f.s./month

Gain Accuracy: ±0.02% of full scale typical, following calibration*

Gain Stability: vs. Temperature: ±50 ppm/°C; vs. Time: ±20 ppm/month

Filter (per channel):3-pole modified Butterworth; 3 dB down at 6 Hz; 60 dB

down at 60 Hz

(cont’d)

*Initial (uncalibrated) inaccuracy may be as great as ±3% of full scale. Maximum error that

could occur upon replacement of a Model 10A30-2C not followed by calibrationis ±6% of full

scale.

GENERALDESCRIPTIONANDSPECIFICATIONS10A30-2C.1

SYSTEM10

ANALOGINPUTCARDS

1.E.2.10A30-2C

MODEL10A30-2C

DUALLVDT

C

ONDITIONERCARD

Product specificaties