Model ATRT-03 (v) Operating Instruction
9
5.0 Specifications
Model ATRT-03/03A/03B specifications are listed in Table 5-0.
Table 5-0. Model ATRT-03/03A/03B Turns-Ratio Meter Specifications
(Unless otherwise indicated, each specification is the same for all three ATRT-03 models.)
Type Portable, Automatic, Three-Phase Transformer Turns-Ratio Meter
Size (inches) 17 L by 13 W by 7 H
Weight (pounds) 17
Input Voltage ATRT-03/03B: 120/240 Vac (Selectable)
ATRT-03A: 85 to 264 Vac, 110 to 370 Vdc, 12Vdc (car battery)
Turns Ratio-Measuring Ranges 0.800 to 15,000.00
Turns-Ratio Accuracy 0.8-999:
±
0.1 %
1,000-1,499:
±
0.2 %
1,500-1,999:
±
1.0 %
2,000-15,000:
±
2.0 %
Calibration Self Calibrating; No operator calibration required.
Excitation Voltage ATRT-03/03B: 8 Vac, 40 Vac, 100 Vac (Selectable)
ATRT-03A: 20 Vac
Excitation Current ATRT-03/03B: 0 to 2 amp; ATRT-03A: 0 to 200 milliamperes
Current Accuracy
±
1mA (
±
1 Digit)
Phase Angle 0 to 360 degree
Phase Angle Accuracy
±
0.2 degree Reading (
±
1 Digit)
Winding Polarity Displayed on an LCD screen
Display LCD: 20 Characters wide by 4 Lines, viewable in bright sunlight
Serial Interface RS-232C, 19200 baud, 8 data bits, 2 start bits, 1 stop bit
Temperature
•
Operating: -20
°
C to 55
°
C
•
Storage: -40
°
C to 65
°
C
Warranty One-Year on Parts and Labor
Note: All Specifications here in are valid at nominal voltage and ambient temperature of +25ºC (+77ºF).
Specifications are subject to change without notice.
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