ML12227A515
| ML12227A515 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 08/09/2012 |
| From: | Dominion Nuclear Connecticut |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| 12-474A, 25203-002-002 98-ENG-02405D2, Rev 2 | |
| Download: ML12227A515 (5) | |
Text
VENDOR' TEHNCAL MANUALe v VENDOR TECUNICAL MANUAL Number: 25203-002-002 For: AI-2000 REVISION 4.3 SMART TEMPERATURE TRANSMITTER OPERATING INFORMATION From: ACCUTECH Volume: 1 of 1 CONTROLLED COPY #
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sensor excitation current and the open sensor detection threshold. 180mV. the maximum allowable lead wire resistance can be determined for any application.
7.1.1 Maximum lead Resistance for RTD The maximum total resistance including the RTO and the two lead wires that carry the RTD excitation current is:
180mV 0.180
= = 600 Ohms 0.3mA 0.0003 If a 100OPt RTO is used to measure a maximum temperature of 700°C. then the RTD resistance is 345 ohms and the maximum lead wire resistance for both leads combined is 600-345 = 255 Ohms. Similarly, the permissible maximum lead wire resistance can be calculated for other RTO applications.
7.1.1 Maximum lead Resistance for Thermocouples Assuming the resistance of the thermocouple junction is negligible, the total resistance of the two lead wires is:
18QmV -(TIC mV Output) 0.180 - (TIC mV) x 0.001 0.005mA 0.000005 Consider a type J thermocouple to be operated up to a temperature of 1200 'F. The approximate.output of this thermocouple is 36mV (reference junction at 32°F). The maximum lead resistance (both leads combined) is:
.180 - 0.036
= 28,800 Ohms 0.O00005mA Page 84 JW, 6 9.io ,ý2 / L.ý 5,w, -) 24 v 0 6 ý J Af REVl1
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Digital Output Accuracy:
+/- 0.04% of the millivolt or ohm equivalent reading. or the 9.0 SPECIFICATIONS accuracy from the table below, whichever is greater:plus the effect of cold junction measurement error or t 0.25"C ( F0.45°F).
S THERMOCOUPLE SENSORS:
NIST Types B. E. J, K. N. R. S. T.
RTO Resistance Sensors:
if using a thermocouple sensor.
Sensor Type E. J. K. N. T TIC's Accuracy
+/- 0.2-C ( t 0.36-F) 0 100 (I PT US SAMA curve (4x= 0.00392) 2, 3 or4 Wire RS TiC's i 0.6 C ( I.08°F) 1 100 (1 PT DIN curve (m = 0.00385) 2, 3 or 4 Wire B TIC's +/-0.6°C ( +/- 1.44*F) 120 Q Ni 2.3 or 4 Wire mV +/- 0.008mV 10 Q Cu, Consult Factory 2. 3 of 4 Wire +/- 0.10°C (10. 18°F)
I 00 PtDIN RTO MILULVOLT INPUT RANGE: -15 to t60mVOC I 00n Pt US RTO t0.10"C ( 0.18-F) 120CI Ni RTD 1:0.1"C ( toa 0181F)
THERMOCOUPLE AND RTD UNEARIZATION: Linearization 10{(t CU RTO Consult Factory with temperature conforms to NIST & DIN curves within Ohms t 0.06 Ohm
+/-0.05C. Custom linearization user programmable at 21 points.
OUTPUT: Analog. Two wire 4 to 20rnA Analog Accuracy:
OUTPUT RANGING ADJUSTMENTS: Digital Accuracy plus
- 4VA Analog Zero ) (100% of sensor range. non interacting TRANSMITTER REPEATABILITY: One half-of accuracy.
Full Scale (
(Normal or reverse acting Digital Mode *C. 'F. K. °R, mV (No ranging required) REFERENCE CONDITION ACCURACY:
Equal to transmitter repeatability.'when set-up under reference MINIMUM OUTPUT RANGE: None conditions in the 'Tap" mode to an external source. The transmitter is then referenced to the prevailing conditions and OUTPUT RESOLUTION: Analog, 2. IVA: Digital 0.01 *. 0.001 mV transmitter accuracy at this reference condition will include TRANSMITTER ACCURACY: Includes repeatability. repeatability, linearity, and hysteresis effects. If using a hysteresis, load and ambient temperature effect. For detailed thermocouple add 0.05*F for reference condition accuracy cold analysis, refer to Accutech Application Note #203. Enhanced junction effect. Reference condition accuracy is comparable in accuracy calibrations available from the factory. Refer to the Al- scope to the accuracy generally specified for analog based 2000UP. Ultra Precision transmitter. transmitters and is consistent with the ANSVIISAS51. 1-1979 definition of' Accuracy-.
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. I SPECIFICATIONS (CONTINUED)
DYNAMIC RESPONSE: INTERCHANGEABILITY: All units interchangeable without field mo Turn On Tune: Less than 5 seconds after power up calibration.
Ambient Temperature Gradient: Automatic compensation to EMI/RFI IMMUNITY: Less than 0.5% of reading (SAMA PMC 20*CiHour Change Update Time: 0.15 Seconds; Digital. 1 second 33.1c test method) 20KHz to 1000MHr. 10 V/meter.
Response to Step Input: 0.25 Seconds, Typical ISOLATION: 250 VAC n-s or 800VOC COLD JUNCTION COMPENSATION:
Self-correction lo -0.25&C COMMON MODE REJECTIiON: 120dB OPERATING TEMPERATURE RANGE: REVERSE POLARITY PROTECTION:
0
-40°F to *-167 F (-400C to +750C) Electronics 42 VOC applied with either poladty 0
-4 F to + It58oF (-20°C to +700C) Display POWER AND LOAD:
STORAGE TEMPERATURE RANGE: Supply voltage (no load resistance): I Z to 42VDC:
0
-58°F to +185 F (-500C to +850C) Supply voltage (with load resistance):
Vsupply-(l2)÷(Rg..d in Kohm) x (21mA)
AMBIENT TEMPERATURE STABIUTY: Self-correcting over for Digital operation, R4oad = 250(. minimum the operating temperature range. Refer to Accutech Application Supply Voltage Effect: < 4-1-0.005% of Span per Volt Note 0203 for full discussion.
WEIGHT: 12 oz. (340g)
LONG TERM STA1ILITY: Less than 0.05% of reading plus t2.1 VA per year. STANDARD CONFIGURATION:
0 Factory configured for Type J thermocouple, 40 F=4.0mA, AUTOMATIC DIAGNOSTICS: Every 3 seconds the AI-2000 200*F=20mA. with HI failsafes. Special configurations are fransmitter performs self-checks for zero, span. coldjunction available to suit your requirements. See Price List.
temperature, open TIC. open RTO element, shorted RTO element, each open RTO lead and transmitter malfunction. OPTIONS: LO-2. Local Display: KB-2 Local Keyboard, Sensors, Probes, and Thermowells. See Price List.
FAILSAFE: User settable 21 .0mA, 3.9mA. or OFF Page 95 ea,1c.a/V/ 00)
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. .. . L." . " ." I i" 2.3.1 Output Terminals The output terminals, 9 & 10, are connected generally to a power supply having a nominal 24 Volt DC voltage and capable of supplying 1 0OmA for the SC-2000. Although in the analog mode these signal conditioners require a maximum of only 24mA, for digital communications with the SC-2000 the power supply capacity should be 1.QOmA. The + OUT and -OUT terminals of the signal conditioner are connected to the corresponding polarity terminals of the power supply.
Optionally a load resistor, typically 250 ohms, may be connected in series with either terminal of the signal conditioner (for digital communications with the SC-2000 this 250 ohm resistor is re-quired). The maximum series resistance in the circuit (including wiring lead resistance) can be calculated using the formula:
Vs - 12 Rs = ------- in ohms 0.023 The following chart gives maximum series resistances:
Supply Voltage Vs Max. Series Resistance Rs 42.0 Volts 1300 ohms 24.0 Volts 520 ohms 21.6 Volts 417 ohms 18.0 Volts 250 ohms 12.0 Volts 0 ohms 2.3.2 Case Ground Terminal 8 provides a connection to the metal enclosure of the signal conditioner. For safety, optimum performance and EMI immunity the case of the instrument should be connected to a good local earth ground. When using grounded sensors which are connected to the local electrical ground, then the signal conditioner case should be connected to that same ground point.
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