PROVA 901/903 Digital Multi-Meter

The DMM to replace your bench-top one

• 0.02% DC and 0.1% AC basic accuracy
• 60,000 counts resolution
• 200KHz (max.) bandwidth
• True RMS with fast ACV/ACA response
• Dual channels measurement similar to a dual channels DSO (V+V, V+A)
• RS-232C ASCII interface
• Data logging (model 903 with 10,708 records for both channels)
• Capacitance measurement
• Free software (901,903)
• 1/3 the cost

The following accuracy is specified for one single channel (channel 1 or channel 2). If dual channels are used at the same time, additional % of accuracy should be added to the listed accuracy. Please refer to the supplemental dual channels specification. The following accuracy is also specified for the ZEROED (relative) value. The accuracy is given as ±% of reading ± number of least significant digits.

Continuity: ( , open voltage 3V approx.) Range Resolution Beeper Overload Protection 999.99 Ω 0.01 Ω < 40 Ω ( approx ) AC 1000V

Diode Test: (open voltage 3V approx.) Range Resolution Short Circuit Current Overload Protection 3.0000V 0.0001V 0.8 mA typical AC 1000V

Frequency: Range (Auto) Resolution Accuracy Overload Protection 1Hz-200KHz (sine wave) 0.0001Hz-100Hz ±0.02%±4dgts AC 1000V 1Hz -2MHz (TTL) 0.0001Hz-0.0001MHz ±0.005%±4dgts AC 1000V

Duty Cycle: (%, TTL, 1Hz – 600KHz ) Range Resolution Accuracy Overload Protection 0.001% - 9.999% 0.001% ±30d/KHz±30dgts AC 1000V 10.00% - 100.00% 0.01% ±3d/KHz±3dgts AC 1000V

Resistance: ( Ω ) Range Resolution Accuracy Overload Protection 999.99 Ω 0.01 Ω ±0.15%±8dgts AC 1000V 9.9999K Ω 0.0001K Ω ±0.09%±3dgts AC 1000V 99.999K Ω 0.001K Ω ±0.09%±3dgts AC 1000V 999.99K Ω 0.01K Ω ±0.09%±3dgts AC 1000V 9.9999M Ω 0.0001M Ω ±0.2%±6dgts AC 1000V 40.000M Ω 0.001M Ω ±1%±6dgts AC 1000V

Capacitance: ( , auto range , and for film capacitor or better)   Range Resolution Accuracy 1 60.00nF 0.01nF ±0.8%±5dgts 600.0nF 0.1n F ±1.5%±5dgts 6.000 μ F 0.001 μ F ±1.5 %±5dgts 60.00 μ F 0.01 μ F ±2.0%±5dgts 600.0 μ F 0.1 μ F ±3.5%±5dgts

DC Voltage: (Input Impedance: 10M ) Range Resolution Accuracy Overload Protection 60.000mV 0.001mV ±0.1%±5dgts 1 DC 1000V 600.00mV 0.01mV ±0.02%±3dgts DC 1000V 6.0000V 0.0001V ±0.02%±3dgts DC 1000V 60.000V 0.001V ±0.02%±3dgts DC 1000V 600.00V 0.01V ±0.02%±3dgts DC 1000V 1000.0V 0.1V ±0.04%±3dgts DC 1000V

DC Current: (10A terminal is protected by a 10A fast blown, high energy fuse, and the terminal of μ A and mA is protected by 1A fast blown, high energy fuse ) Range Resolution Accuracy 600.00 μ A 0.01 μ A ±0.2%±10dgts 6000.0 μ A 0.1 μ A ±0.1%±10dgts 60.000mA 0.001mA ±0.2%±10dgts 600.00mA 0.01mA ±0.1%±10dgts 1.0000A 0.0001A ±0.1%±10dgts 10.000A 1 0.001A ±0.3%±10dgts

AC Current: (The accuracy is specified for a single channel for 5%-100% of range for 45Hz – 20KHz, True RMS, 10A terminal is protected by a 10A fast blown, high energy fuse, and the terminal of μ A and mA is protected by 1A fast blown, high energy fuse ) Range (ACA) Resolution Accuracy (50/60Hz) Accuracy (45Hz-1KHz) 600.00 μ A 0.01m A ±0.3%±20dgts ±0.4%±20dgts 6000.0 μ A 0.1m A ±0.3%±20dgts ±0.4%±20dgts 60.000mA 0.001mA ±0.3%±20dgts ±0.4%±20dgts 600.00mA 0.01mA ±0.3%±20dgts ±0.4%±20dgts 1.0000A 0.0001A ±0.3%±20dgts ±0.4%±20dgts 10.000A 1 0.001A ±0.5%±20dgts ±0.4%±20dgts Range (ACA) Accuracy (20Hz-45Hz) Accuracy (1KHz–10KHz) Accuracy (10KHz–20KHz) 600.00 μ A ±1%±20dgts ±2%±20dgts ±1%±20dgts 6000.0 μ A ±1%±20dgts ±2%±20dgts ±1%±20dgts 60.000mA ±1%±20dgts ±0.5%±20dgts ±1%±20dgts 600.00mA ±1%±20dgts ±0.5%±20dgts ±1%±20dgts 1.0000A ±1%±20dgts ±1.5%±20dgts Not Specified 10.000A 1 ±2%±20dgts ±1.5%±20dgts Not Specified

AC Voltage: The accuracy of ACV or AC mV is specified for 5%-100% of range from 20Hz–10KHz, average sensing. Input Impedance is 10M , and overloaded protection is AC 1000V for all range. Accuracy is also specified for single channel (channel 1 or channel 2). If dual channels measurements are performed, additional specification of accuracy will be introduced. Please refer to the supplemental dual channels specification. Due to the wide bandwidth, the reading might not be zero when no inputs present. But the residual reading does not affect the listed accuracy. If the AC reading is less than 100 least significant counts, it is set to zero by the unit. Range (ACV) Resolution Accuracy (50/60Hz) Accuracy (45Hz-1KHz) Accuracy (20Hz-45Hz) 60.000mV 0.001mV ±0.1%±20dgts ±0.3%±20dgts ±0.8%±25dgts 600.00mV 0.01mV ±0.1%±20dgts ±0.3%±20dgts ±0.8%±25dgts 6.0000V 0.0001V ±0.1%±20dgts ±0.3%±20dgts ±0.8%±25dgts 60.000V 0.001V ±0.1%±20dgts ±0.3%±20dgts ±0.8%±25dgts 600.00V 0.01V ±0.1%±20dgts ±0.5%±20dgts ±0.8%±25dgts 1000.0V (0–400V) 0.1V ±0.1%±20dgts ±2%±30dgts ±0.8%±25dgts 1000.0V (400-1000V) 0.1V ±0.1%±20dgts (45Hz–400Hz) ±2%±30dgts ±0.8%±25dgts Range(ACV) Accuracy (1KHz–10KHz) Accuracy (10KHz–20KHz) Accuracy (20KHz-50KHz) Accuracy (50KHz-100KHz) Accuracy (100kHz-200KHz) 60.000mV ±2%±20dgts ±2.5%±20dgts ±4%±40dgts ±4%±40dgts Not Specified 600.00mV ±1%±20dgts ±2.5%±20dgts ±2%±40dgts ±2%±40dgts ±2%±40dgts 6.0000V ±1%±20dgts ±2.0%±20dgts ±2%±40dgts ±2%±40dgts ±2%±40dgts 60.000V ±1%±20dgts ±2.0%±20dgts ±4%±40dgts Not Specified Not Specified 600.00V (0-400V) ±5%±20dgts Not Specified Not Specified Not Specified Not Specified 600.00V (400-600V) Not Specified Not Specified Not Specified Not Specified Not Specified 1000.0V (0-400V) ±2%±40dgts Not Specified Not Specified Not Specified Not Specified 1000.0V (400-1000V) Not Specified Not Specified Not Specified Not Specified Not Specified

Supplemental Dual Channels Specification (DC–400Hz): The following accuracy should be added to all the listed accuracy if dual channels measurements are performed.   ACV (Ch2) DCV (Ch2) ACA (Ch2) DCA (Ch2) ACV (Ch1) ±1%±(V1-V2) 200 PPM (Ch1,Ch2) ±0.5%±(V1-V2) * 20 PPM (Ch1,Ch2) ±0.1μA/V(μA,Ch2) ±1μA/V(mA,Ch2) ±0.2mA/V(A,Ch2) ±2mV/A(mV,Ch1) ±5mV/A(V,Ch1) ±0.25% (Ch1,Ch2) DCV (Ch1) ±0.5%±(V1-V2)* 20 PPM (Ch1,Ch2) ±0.25% (Ch1,Ch2) ±0.25% (Ch1,Ch2) ±0.25% (Ch1,Ch2)

General Specification Battery Type 9V Display 5 + 5 digits LCD with 30 segments bar graph Range Selection auto and manual Overload Indication OL Power Consumption 6mA (approx) Low battery Indication Operating Temperature -10 ℃ to 50 ℃ Operating Humidity less than 85% relative Altitude up to 2000M Storage Temperature -20 ℃ to 60 ℃ Storage Humidity less than 75% relative Dimension 207mm(L) x 101mm (W) x 47mm (H) 8.15" (L) x 4" (W) x 1.85" (H) Weight 430g / 15.2oz (battery included) Accessories Users manual 9V battery x 1 RS-232C interface cable