Daytronic 10A17-2 Bedienungsanleitung
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10A17-2
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SYSTEM 10
ANALOG INPUT CARDS
1.E.2.10A17-2
1 GENERAL DESCRIPTION AND SPECIFICATIONS
The Model 10A17-2 is designed for high-accuracy temperature measurement using
platinum
Resistance Temperature Detectors (RTD's) and requiring high input isola-
tion.
Precision constant-current excitation is provided for two independent sensor
channels, which may be intermixed as required. Each input is transformer-isolated, so
that sensor-to-sensor common-mode voltages as high as 1500 V-DC can be accom-
modated without damaging the instrument or perceptibly affecting measurement
accuracy. Four-wire cabling, with maximum excitation of one milliampere and 0.004%
per ohm leadwire resistance rejection, eliminates common self-heating and cable-
loading errors. This conditioner is particularly useful in the utilities industry.
ADDITIONAL 10A17-2 SPECIFICATIONS
RTD Types: Platinum; DIN (European) standard with “ice-point” resistance of 50, 100,
or 200 ohms, or American standard with “ice-point” of 100 ohms
Range and Resolution: See Table 1, below; automatically selected—on an individual
channel basis—when the channel is configured; for System 10 channel “type” codes
assigned to 10A17-2 data channels, see Table 1; for
high RTD resolution, using a
specially modified 10A17-2 card, see Section 3.b, below
Linearization: Internal digital linearization; maximum error: ±0.1° C (±0.2° F)
Excitation (per channel): Nominal 5 V-DC; 1 mA, maximum
Amplifier (per channel):
Common-Mode Range:±1500 V operating and without instrument damage
Common-Mode Rejection Ration: DC: -150 dB; at 60 Hz: -160 dB; at 1 kHz and 3
kHz; infinite
Leadwire Resistance Rejection (4-wire only): 0.004% per ohm
Offset: Initial: ±0.01% of full scale; vs. Temperature: ±10 ppm/°C; vs. Time: ±10
ppm/month
Gain Accuracy: ±0.02% of full scale
Gain Stability: vs. Temperature: ±50 ppm/°C; vs. Time: ±50 ppm/month
Filter (per channel): 3-pole modified Butterworth; 3 dB down at 2 Hz; 60 dB down at
30 Hz
Step-Response Settling Time (Full-Scale Output):
To 1% of final value: 260 msec
To 0.1% of final value: 500 msec
To 0.02% of final value: 600 msec
Total System Accuracy (typical, including Model 10A17-2 and system data collec-
tion and processing): see Table 1, below
Auxiliary Outputs: Filtered outputs available on mainframe wire-wrap pins
MODEL 10A17-2
DUAL HIGH-VOLTAGE ISOLATION RTD
C
ONDITIONER CARD
GENERAL DESCRIPTION AND SPECIFICATIONS 10A17-2.1
Table 1 RTD Ranges for the Model 10A17-2
Platinum Typical Maximum Channel
RTDResis- Display System Expected Type
Standard tance Range Resolution
3
Accuracy
4
Error
4
Code
DIN
1
50 Ω -150° C to +600° C 1.0° C ± 1° C ± 1.3° C A9
DIN
1
50 Ω -150° C to +600° C 0.1° C ± 0.2° C ± 0.4° C AA
DIN
1
50 Ω -238° F to +1112° F 1.0° F ± 1° F ± 1.5° F AB
DIN
1
50 Ω -238° F to +1112° F 0.2° F ± 0.3° F ± 0.6° F AC
DIN
1
100 Ω -150° C to +600° C 1.0° C ± 1° C ± 1.3° C A1
DIN
1
100 Ω -150° C to +600° C 0.1° C ± 0.2° C ± 0.4° C A2
DIN
1
100 Ω -238° F to +1112° F 1.0° F ± 1° F ± 1.5° F A3
DIN
1
100 Ω -238° F to +1112° F 0.2° F ± 0.3° F ± 0.6° F A4
DIN
1
200 Ω -150° C to +600° C 1.0° C ± 1° C ± 1.3° C A5
DIN
1
200 Ω -150° C to +600° C 0.1° C ± 0.2° C ± 0.4° C A6
DIN
1
200 Ω -238° F to +1112° F 1.0° F ± 1° F ± 1.5° F A7
DIN
1
200 Ω -238° F to +1112° F 0.2° F ± 0.3° F ± 0.6° F A8
American
2
100 Ω -150° C to +600° C 0.1° C ± 0.2° C ± 0.4° C AD
American
2
100 Ω -238° F to +1112° F 0.2° F ± 0.3° F ± 0.6° F AE
1
α = 0.00385.
2
α = 0.00392.
3
Note that a specially modified version of the 10A17-2 yields resolution of 0.01° C (0.02° F)
when used with System 10 “custom linearization.” See Section 3.b for details.
4
Including ± one count of least significant digit displayed.
2 TRANSDUCER CONNECTIONS
The Model 10A17-2’s I/O CONNECTOR mates with Daytronic CONDITIONER CON-
NECTOR No. 60322, shown in Fig. 1.5 (in Manual Section 1.E.1). Standard four-wire
RTD cabling is shown in Fig. 1, below. Table 2 gives standard pin assignments for the
I/O Connector.
Table 2 Model 10A17-2 Pin Assignments
I/O Connector Conditioner Conditioner
Pin Channel Line
Number Number Function
11+CURRENT
A1–CURRENT
31+SIGNAL
C1–SIGNAL
62+CURRENT
F2–CURRENT
82+SIGNAL
J2–SIGNAL
2,B,4,D,5,E,7,H Not Committed
9,K,L,10 Not Committed
10A17-2.2 TRANSDUCER CONNECTIONS
10A17-2 DUAL HIGH-VOLTAGE ISOLATION RTD CARD
Produktspezifikationen
| Marke: | Daytronic |
| Kategorie: | Nicht kategorisiert |
| Modell: | 10A17-2 |
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