prova-11

PROVA 901 , PROVa 903 là đồng hồ đa năng hiện số (Digital Multi-Meter) hiển thị LCD 2 hàng 5 số.



FEATURES / TÍNH NĂNG

Features:
  • Độ chính xác / 0.02% DC and 0.1% AC basic accuracy
  • Độ phân giải / 60,000 counts resolution
  • Băng thông / 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)
  • Đo tụ điện / Capacitance measurement
  • Phần mềm miễn phí / Free software (901,903)

SPECIFICATION / THÔNG SỐ KỸ THUẬT CƠ BẢN

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:
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:
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