Rtd Accuracy - GE 489 Instruction Manual

7.2 HARDWARE FUNCTIONAL TESTING
The specification for RTD input accuracy is ±2° for Platinum/Nickel and ±5° for Copper. Perform the steps below.
1. Alter the following setpoints:
S8 RTD TEMPERATURE\RTD TYPE\STATOR RTD TYPE:
S8 RTD TEMPERATURE\RTD #1\RTD #1 APPLICATION:
Measured values should be ±2°C / ±4°F for platinum/nickel and ±5°C / ±9°F for copper. Alter the resistance applied to
2.
the RTD inputs as shown below to simulate RTDs and verify accuracy. View the measured values in
DATA\TEMPERATURE
APPLIED
RESISTANCE TEMPERATURE READING
100 Ω PLATINUM
84.27 Ω
100.00 Ω
119.39 Ω
138.50 Ω
157.32 Ω
175.84 Ω
194.08 Ω
APPLIED
RESISTANCE TEMPERATURE READING
120 Ω NICKEL
92.76 Ω
120.00 Ω
157.74 Ω
200.64 Ω
248.95 Ω
303.46 Ω
366.53 Ω
APPLIED
RESISTANCE TEMPERATURE READING
100 Ω NICKEL
7
77.30 Ω
100.00 Ω
131.45 Ω
167.20 Ω
207.45 Ω
252.88 Ω
305.44 Ω
APPLIED
RESISTANCE TEMPERATURE READING
10 Ω COPPER
7.49 Ω
9.04 Ω
10.97 Ω
12.90 Ω
14.83 Ω
16.78 Ω
18.73 Ω
7-6
.
EXPECTED RTD
°C °F 1
–40°C –40°F
0°C 32°F
50°C 122°F
100°C 212°F
150°C 302°F
200°C 392°F
250°C 482°F
EXPECTED RTD
°C °F 1
–40°C –40°F
0°C 32°F
50°C 122°F
100°C 212°F
150°C 302°F
200°C 392°F
250°C 482°F
EXPECTED RTD
°C °F 1
–40°C –40°F
0°C 32°F
50°C 122°F
100°C 212°F
150°C 302°F
200°C 392°F
250°C 482°F
EXPECTED RTD
°C °F 1
–40°C –40°F
0°C 32°F
50°C 122°F
100°C 212°F
150°C 302°F
200°C 392°F
250°C 482°F
489 Generator Management Relay
100 ohm Platinum (select desired type)
Stator (repeat for RTDs 2 to 12)
MEASURED RTD TEMPEATURE
SELECT ONE: ____°C ____°F
2 3 4 5 6
MEASURED RTD TEMPEATURE
SELECT ONE: ____°C ____°F
2 3 4 5 6
MEASURED RTD TEMPEATURE
SELECT ONE: ____°C ____°F
2 3 4 5 6
MEASURED RTD TEMPEATURE
SELECT ONE: ____°C ____°F
2 3 4 5 6
7 TESTING

7.2.6 RTD ACCURACY

A2 METERING
7 8 9 10 11
7 8 9 10 11
7 8 9 10 11
7 8 9 10 11
GE Power Management
12
12
12
12