AUDIO
Highly-Sensitivity Measurements for Micro-Voltages
LMV-189AR
2 CHANNEL AC MILLIVOLTMETER
GENERAL
SPECIFICATIONS
Voltmeter
Measuring Voltage
Range:
Measuring Ranges:
The LMV-189AR feature high sensitivity and wide bandwidth
with the convenience of monitoring stereo channels on a
single, dual-pointer meter. Of particular value for productionline work is the ability to select ranges by remote control.
LMV-189AR
30 µV to 100 V
Voltage measurement (12 ranges)
0.3, 1, 3, 10, 30, 100 mV
0.3, 1, 3, 10, 30, 100 V
Decibel measurement (12 ranges)
–70, –60, –50, –40, –30, –20, –10, 0,
+10, +20, +30, +40 dB
(0 dBV=1 V, 0 dBm=0.775 V)
Measuring Accuracy: Within ±2 % of full scale (at 1 kHz or 400 Hz)
Frequency Response: 5 Hz to 1 MHz ±10 %
(1 kHz reference)
10 Hz to 500 kHz ±5 %
20 Hz to 100 kHz ±2 %
Input Resistance:
10 MΩ
Input Capacitance:
Less than 50 pF (0.3 to 100 mV ranges)
Less than 30 pF (0.3 to 100 V ranges)
Max. Input Voltage: 600 V (DC + AC peak)
Remote Control
Voltage:
C MOS level (5 V positive logic)
Amplifier
Output Voltage:
1 Vrms at full scale, into open circuit
Frequency Response: 10 Hz to 300 kHz, –3 dB
Output Impedance:
600 Ω ±20 %
Distortion Factor:
Less than 1 % at full scale (1 kHz)
Environmental Conditions
Operating Temperature: 0 to 40 °C
Operating Humidity:
≤ 85 % RH (without condensation)
Operating Environment: In door use
Operating Altitude:
Up to 2,000m
Overvoltage Category: Ⅱ
Pollution degree:
2
Power Requirements: 100, 120, 200, 240 VAC, 50/60 Hz, 5 VA
Dimensions:
150 (W) × 175 (H) × 250 (D) mm
Weight:
2.7 kg
Accessories:
BNC type terminal adapter ................... 2
BNC-clip cable (3 C-2 V, 75 Ω, 1 m) .... 2
Instruction manual ................................ 1
FEATURES
■ High Sensitivity
LMV-189 AR: 30 µV to 100 V in 12 Ranges
■ 50 Hz to 1 MHz Bandwidth
■ Dual Channel Operation — Two Pointers on the Common Scale
■ Calibrated in Millivolts, Volts, dBV and dBm into 600 Ω
■ Remote Control of Range Settings (CMOS, +5 V Logic)
■ ± 2% Full Scale Accuracy
■ Amplifier Output (1 Vrms at Full Scale)
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