4½ Digit Autoranging True RMS Bench Multimeter  Model 1087A
  
     
 
Features
Model 1087A
  • 0.05% Basic DC Accuracy
  • Auto / Manual Ranging
  • True RMS AC Measurement
  • dB Measurement
  • Freq. Measurement upto 10MHz
  • Continuity Testing
  • Unique Easy Calibration Facility
Technical Specifications
  Range Resolution Accuracy
DC Voltage 200mV, 200V, 20V, 200V 10µV, 100µV, 1mV, 10mV ±(0.03% rdg +0.01% of rng +1 digit) For 200mV to 200V
1000V 100mV ±(0.03% rdg +0.02% of rng +1 digit)
For 1000V
AC Voltage 200mV, 2V, 20V, 200V 10µV, 100µV, 1mV, 10mV ±(0.3% rdg +0.15% of rng +1 digit)
(40Hz-500Hz) : 200mV to 200V
±(1% rdg +0.15% of rng +1 digit)
(500Hz-20KHz) : 200mV to 200V
±(5% rdg +1% of rng +1 digit)
(20KHz-100KHz) : 200mV to 200V
1000V 100mV ±(0.3% rdg +0.3% of rng +1 digit)
(40Hz-60Hz) : 1000V
DC Current 200µA, 2mA, 20mA, 200mA, 1A 0.01µA, 0.1µA, 1µA, 10µA, 100µA ±(0.2% rdg +0.05% of rng +1 digit)
10A 1mA ±(0.2% rdg +0.1% of rng +1 digit)
AC Current 200µA, 2mA, 20mA, 200mA, 1A 0.01µA, 0.1µA, 1µA, 10µA, 100µA (±0.5% rdg +0.1% of rng +1 digit)
40Hz - 5KHz
10A 1mA (±0.5% rdg +0.2% of rng +1 digit)
40Hz - 60Hz
Resistance 200, 2K, 20K, 200K ohm 0.01, 0.1, 1, 10 ohms ±(0.2% rdg +0.1% of FS +1 digit)
200 ohms to 200K ohms
2M, 20M ohms 100, 1K ohms ±(1% rdg +0.1% of FS +1 digit)
2M ohms to 20M ohms
dB +10 to -20 dB
-20 to -40 dB
-40 to -50 dB 		0.1 dB 40Hz-4KHz   4K-40K   40K-100K
   ±0.5dB        ±1dB      ±1.5dB
   ±1dB          ±1.5dB    ±3.0dB
   ±2dB          ±3dB           --
Frequency
(10Hz to
10MHz)
 		<10KHz
>10KHz 		1Hz
1KHz 		±(1% +10 counts), sensitivity 2Vpp
±(1% +10 counts), sensitivity 5Vpp

GENERAL  
Display 4½ Digit, 0.5" LED.
Power 115V / 230V AC ±10%, 47 / 65Hz.
Dimensions 260 (W) x 85 (H) x 300 (D) mm.
Weight 3 Kgs. approx.
 

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