Daytronic 10A69-4 Bedienungsanleitung
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1 GENERAL DESCRIPTION AND SPECIFICATIONS
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.
ADDITIONAL 10A69-4 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 RMS Con-
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 calibration is ±0.4% of full
scale.
MODEL 10A69-4
QUAD AC RMS
C
ONDITIONER CARD
GENERAL DESCRIPTION AND SPECIFICATIONS 10A69-4.1
SYSTEM 10
ANALOG INPUT CARDS
1.E.2.10A69-4
Table 1 Model 10A69-4 Input Characteristics
Range Z
i
V
max
BW (to 0.2%) BW (to 1%) BW (to 3 dB)
50 mV-AC 1 KΩ 10 V-AC 45 Hz to 1 kHz 12 Hz to 3.2 kHz 10 Hz to 22 kHz
100 mV-AC 1 KΩ 10 V-AC 45 Hz to 1 kHz 12 Hz to 3.2 kHz 10 Hz to 16 kHz
200 mV-AC 1 KΩ 10 V-AC 45 Hz to 1 kHz 12 Hz to 3.2 kHz 10 Hz to 9 kHz
5 V-AC 100 KΩ 100 V-AC 45 Hz to 4 kHz 12 Hz to 20 kHz 10 Hz to 40 kHz
10 V-AC 100 KΩ 100 V-AC 45 Hz to 4 kHz 12 Hz to 10 kHz 10 Hz to 20 kHz
20 V-AC 100 KΩ 100 V-AC 45 Hz to 4 kHz 12 Hz to 5 kHz 10 Hz to 9 kHz
50 V-AC 1 MΩ 250 V-AC 45 Hz to 2 kHz 15 Hz to 9 kHz 10 Hz to 40 kHz
100 V-AC 1 MΩ 250 V-AC 45 Hz to 2 kHz 15 Hz to 9 kHz 10 Hz to 21 kHz
200 V-AC 1 MΩ 250 V-AC 45 Hz to 2 kHz 15 Hz to 9 kHz 10 Hz to 10 kHz
Table 2 10A69-4 “Type” Codes
Full-Scale Channel
Range Type Code
50 mV-AC 61
100 mV-AC 60
200 mV-AC 62
5 V-AC 67
10 V-AC 66
20 V-AC 68
50 V-AC 6A
100 V-AC 69
200 V-AC 6B
2 TRANSDUCER CONNECTIONS
The Model 10A69-4’s I/O CONNECTOR mates with Daytronic CONDITIONER CON-
NECTOR No. 60322, shown in Fig. 1.5 (in Manual Section 1.E.1). Table 3 gives stan-
dard pin assignments for the I/O Connector.
The wiring of each input will depend on the range selected for that input. Cabling for
inputs in the 50-, 100-, and 200-mV ranges is shown in Fig. 1(a); for inputs in the 5-, 10-,
and 20-V ranges, in Fig. 1(b); and for inputs in the 50-, 100-, and 200-V ranges, in Fig.
1(c).
NOTE: TO MINIMIZE THE EFFECTS OF STRAY CAPACITIVE PICKUP, IT IS STRONGLY
RECOMMENDED THAT ALL UNUSED
“+SIGNAL” PINS BE TIED TO THEIR RESPEC-
TIVE “–SIGNAL” PINS. For example, if the 50-200 mV “+SIGNAL” pin (
Pin 4) is being
used for Channel 2, then the unused
Pins 3 and D should both be jumpered to Pin C
(Channel 2's “–SIGNAL”). And if, for example, Channel 4 is not being used at all, then
Pins 7, 8, and J should all be jumpered to Pin H.
10A69-4.2 TRANSDUCER CONNECTIONS
10A69-4 QUAD AC RMS CARD
Produktspezifikationen
| Marke: | Daytronic |
| Kategorie: | Messung |
| Modell: | 10A69-4 |
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