Specifications 4
U1731B/U1732B User’s and Service Guide 33
General Specifications
Table 4 - 4 General characteristics of U1731B and U1732B
Parameter U1731B U1732B
Power supply Single standard 9 V battery (Alkaline)
External DC adaptor (DC 12 V
MIN
— 15 V
MAX
, Load 50 mA minimum)
Display L/C/R: Maximum display 19999
D/Q: Maximum display 999 (Auto Range)
Measurements L/C/R/D/Q L/C/R/D/Q/θ
Measuring circuit mode Inductance (L): Defaults to series mode
Capacitance/Resistance (C/R): Defaults to parallel mode
Ranging mode Auto & Manual
Measuring terminals Three terminals with sockets
Tolerance mode 1%, 5%, 10% 1%, 5%, 10%, 20%
Test signal level ~0.6 V
RMS
Test frequency accuracy: ±0.1% 120 Hz = 120 Hz
1 kHz = 1010 Hz
100 Hz = 100 Hz
120 Hz = 120 Hz
1 kHz = 1010 Hz
10 kHz = 9.6 kHz
Measuring rate 1 time/s, nominal
Response time ~1 s/DUT (manual range)
Auto power-off ~5 mins without operations
Low battery indicator ~6.8 V
Operating temperature 0 °C – 40 °C
Storage temperature –20 °C – 60 °C (without battery)
Storage humidity 0 – 80% R.H.
Relative Humidity (R.H.) 0 – 70% R.H.
Temperature coefficient 0.15 x (Specified accuracy)/°C (0 °C – 18 °C or 28 °C – 40 °C)
Battery type Alkaline: ANSI/NEDA: 1604A/IEC: 6LR61
Power consumption ~40 mA for operation
0.08 mA after Auto Power-off
Protective fuse 0.1 A/250 V fuse (Input protective)
Battery life 5 to 7 hours typical (without backlight based on new alkaline)
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