Daytronic 10A69-4 Handleiding

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1GENERALDESCRIPTIONANDSPECIFICATIONS

The Model 10A69-4 accurately measures the true RMS amplitude up to four indepen-

dent

external analog AC signals, mixed as desired, from a wide range of voltage

sources.

Since the 10A69-4 does not provide excitation, the voltage source must supply its own

power supply

, if required (as is the case with many accelerometers, when used to

measure the noise level or vibration factor of a dynamic process). The three

millivolt

ranges (50, 100, and 200 mV-AC) are intended primarily for current measurement by

means of an external shunt.

ADDITIONAL10A69-4 SPECIFICATIONS

Transducer Types

: AC signal sources (voltage only)

Input Voltage and Current Ranges: See Table 1, below, for allowable full-scale input

ranges (given for each range are the corresponding

normal-mode input impedance

(z

i

), maximum normal-mode input voltage with no instrument damage (V

max

), and

bandwidth flat to 0.2%, 1%, and 3 dB, respectively); automatically selected—on an

individual channel basis—when the channel is configured; for the System 10 channel

“type” codes assigned to 10A69-4 data channels, see Table 2, below

Amplifier (per channel): Selectable gain, followed by high-pass filter with RMSCon-

verter (see Table 1 for bandwidths)

Common-Mode Range: ±1000 V operating and without instrument damage

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

Input Impedance (Common-Mode): Infinite at DC shunted by 100 pF

Offset: Initial: ±0.02% of full scale; vs. Temperature: ±20 ppm/°C; vs. Time: ±50

ppm/month

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

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

Filter (per channel):3-pole modified Butterworth; 3 dB down at 10 Hz; 60 dB down at

50 Hz

Step-Response Settling Time (Full-Scale Output):

To 1% of final value: 100 msec

To 0.1% of final value: 150 msec

To 0.02% of final value: 600 msec

Auxiliary Outputs to Mainframe Wire-Wrap Pins: None

*Initial (uncalibrated) inaccuracy may be as great as ±0.2% of full scale. Maximum error that

could occur upon replacement of a Model 10A69-4 not followed by calibrationis ±0.4% of full

scale.

MODEL10A69-4

QUADACRMS

C

ONDITIONERCARD

GENERALDESCRIPTIONANDSPECIFICATIONS10A69-4.1

SYSTEM10

ANALOGINPUTCARDS

1.E.2.10A69-4

Product specificaties