Daytronic 10A68-2 Bedienungsanleitung
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10A68-2
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1 GENERAL DESCRIPTION AND SPECIFICATIONS
Using the special screw-terminal connector board described in Section 2, the Model
10A68-2 accurately measures the true RMS amplitude of one or two independent
external analog AC signals, mixed as desired, from a wide range of voltage or cur-
rent sources
—including engineering parameters conditioned by other Daytronic
cards.
Since the 10A68-2 does not provide excitation, the analog 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 card is particu-
larly useful in evaluating the
efficiency of AC electrical power systems.
ADDITIONAL 10A68-2 SPECIFICATIONS
Transducer Types
: AC signal sources (voltage or current)
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 or current with no instrument damage
(V
max
or I
max
), and bandwidth flat to 0.1%, 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 10A68-2 data channels, see Table 2,
below
Amplifier (per channel): Floating, with RMS Converter (see Table 1 for bandwidths)
Common-Mode Range: ±1500 V operating and without instrument damage
Common-Mode Rejection Ratio: DC and at 60 Hz: infinite; at 1 kHz: -60 dB
Input Impedance (Common-Mode): Essentially infinite for all input ranges
Offset: Initial: ±0.04% of full scale; vs. Temperature: ±20 ppm/°C; vs. Time: ±20
ppm/month
Gain Accuracy: ±0.05% of full scale typical, following calibration*
Gain Stability (all ranges except 5 A): vs. Temperature: ±50 ppm/°C; vs. Time: ±20
ppm/month
Gain Stability (5-A range only): vs. Temperature: ±500 ppm/°C; vs. Time: ±20
ppm/month
(cont'd)
* Initial (uncalibrated) inaccuracy may be as great as ±0.1% of full scale for all input ranges
except 5 A, for which it may be as great as ±0.5%. Maximum error that could occur upon
replacement of a Model 10A68-2 not followed by calibration is ±0.2% of full scale (±1% for 5-A
range).
MODEL 10A68-2
DUAL AC RMS
C
ONDITIONER CARD
GENERAL DESCRIPTION AND SPECIFICATIONS 10A68-2.1
SYSTEM 10
ANALOG INPUT CARDS
1.E.2.10A68-2
Filter (per channel): 3-pole modified Butterworth; 3 dB down at 5 Hz; 60 dB down at
30 Hz
Step-Response Settling Time (Full-Scale Output):
To 1% of final value: 150 msec
To 0.1% of final value: 200 msec
To 0.02% of final value: 250 msec
Auxiliary Outputs: Filtered outputs available on mainframe wire-wrap pins
Table 1 Model 10A68-2 Input Characteristics
Range Z
i
V
max
or I
max
BW (to 0.1%) BW (to 1%) BW (to 3 dB)
50 mV-AC 2 KΩ 40 V-AC 40 Hz to 400 Hz 20 Hz to 2 kHz 10 Hz to 4 kHz
100 mV-AC 2 KΩ 40 V-AC 40 Hz to 400 Hz 20 Hz to 2 kHz 10 Hz to 4 kHz
200 mV-AC 2 KΩ 40 V-AC 40 Hz to 400 Hz 20 Hz to 2 kHz 10 Hz to 4 kHz
500 mV-AC 2 KΩ 40 V-AC 40 Hz to 400 Hz 20 Hz to 2 kHz 10 Hz to 4 kHz
1 V-AC 2 KΩ 40 V-AC 40 Hz to 400 Hz 20 Hz to 2 kHz 10 Hz to 4 kHz
2 V-AC 2 KΩ 40 V-AC 40 Hz to 400 Hz 20 Hz to 2 kHz 10 Hz to 4 kHz
5 V-AC 200 KΩ 140 V-AC 50 Hz to 4 kHz 20 Hz to 10 kHz 10 Hz to 20 kHz
10 V-AC 200 KΩ 140 V-AC 50 Hz to 4 kHz 20 Hz to 10 kHz 10 Hz to 20 kHz
20 V-AC 200 KΩ 140 V-AC 50 Hz to 4 kHz 20 Hz to 10 kHz 10 Hz to 20 kHz
50 V-AC 1 MΩ 630 V-AC 40 Hz to 400 Hz 20 Hz to 2 kHz 10 Hz to 4 kHz
100 V-AC 1 MΩ 630 V-AC 40 Hz to 400 Hz 20 Hz to 2 kHz 10 Hz to 4 kHz
200 V-AC 1 MΩ 630 V-AC 40 Hz to 400 Hz 20 Hz to 2 kHz 10 Hz to 4 kHz
500 V-AC 1 MΩ 630 V-AC 50 Hz to 4 kHz 20 Hz to 10 kHz 10 Hz to 20 kHz
50 mA 1 Ω 700 mA 40 Hz to 400 Hz 20 Hz to 2 kHz 10 Hz to 4 kHz
100 mA 1 Ω 700 mA 40 Hz to 400 Hz 20 Hz to 2 kHz 10 Hz to 4 kHz
200 mA 1 Ω 700 mA 40 Hz to 400 Hz 20 Hz to 2 kHz 10 Hz to 4 kHz
500 mA 1 Ω 700 mA 50 Hz to 4 kHz 20 Hz to 10 kHz 10 Hz to 20 kHz
5 A 0.01 Ω 7 A 40 Hz to 400 Hz 20 Hz to 2 kHz 10 Hz to 4 kHz
Note: Transformers are available for current inputs greater than 5 A.
Table 2 10A68-2 “Type” Codes
Full-Scale Channel
Range Type Code
50 mV-AC 61
100 mV-AC 60
200 mV-AC 62
500 mV-AC 64
1 V-AC 63
2 V-AC 65
5 V-AC 67
10 V-AC 66
20 V-AC 68
50 V-AC 6A
100 V-AC 69
200 V-AC 6B
500 V-AC 67
50 mA 61
100 mA 60
200 mA 62
500 mA 67
5 A 64
10A68-2.2 GENERAL DESCRIPTION AND SPECIFICATIONS
10A68-2 DUAL AC RMS CARD
Produktspezifikationen
| Marke: | Daytronic |
| Kategorie: | Nicht kategorisiert |
| Modell: | 10A68-2 |
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