• VOAC7523/22/20/21A

高分解度 509999
最高速度 100次/秒 顯示達50999
强大的运算功能
雙顯示(Dual Display)
雙功能(Dual Function)
隔離通道CH-B的DC V输入(VOAC7520/23)
4端子/2端子電阻測量(VOAC7522/21A)
低價格/高功能
電流高達10A

規格: 

1. Typical Sample Rate and Resolution
	Sample Rate Resolution Reading Rate Hum Rejection SLOW 5.5-digit approx. 4 times/sec Yes MID 5.5-digit approx. 20 times/sec Yes FAST 4.5-digit approx. 100 times/sec N/A

2. DC Volt (DCV)   50mV range is for the VOAC7523/7522 only.

Range Resolution Input Resistance Accuracy* 5.5-digit 4.5-digit SLOW/MID FAST 50mV 0.1µV 1µV 100MW or more 0.025+10 0.025+15 500mV 1µV 10µV 1000MW or more 0.012+5 0.012+10 5V 10µV 100µV 0.012+2 0.012+7 50V 100µV 1mV approx. 10MW 0.016+5 0.016+10 500V 1mV 10mV 0.016+2 0.016+7 1000V 10mV 100mV The accuracy in the 50mV and 500mV ranges is specified after zero compensation through the REL operation. Sample rate in the 50mV range SLOW/MID: Approx. 0.5 times/sec, FAST: Approx. 50 times/sec Max. input voltage: 50mV to 5V range ± 800V (continuous) 50V to 1000V range ± 1100V (continuous) Resolution and noise rejection Resolution Sample Rate NMRR CMRR 5.5-digit SLOW 55dB or more 120dB or more 5.5-digit MID 55dB or more 120dB or more 4.5-digit FAST 0dB 55dB or more

3. CH-B DC Volt (DCV)   VOAC7523/7520 only

Range Resolution Input Resistance Accuracy* 4.5-digit SLOW/MID FAST 5V 100µV CH-B:H to CH-B:L 10MW ± 3% CH-B:H to CH-A:L 5MW ± 3% CH-B:L to CH-A:L 5MW ± 3% 0.025+2 0.025+30 50V 1mV 0.025+8 300V 10mV 0.025+5 Max. input voltage: ± 300V between CH-A L and CH-B ± 300V Resolution and noise rejection Resolution Sample Rate NMRR CMRR Isolation between CH-A and CH-B 4.5-digit SLOW/MID 55dB or more 120dB or more 56dB or more 4.5-digit FAST 0dB 55dB or more

4. AC Volt (ACV, DC+ACV) detection of True RMS      Up to 100kHz for VOAC7520/7521A

Range Resolution Measurement Range Input Resistance 5.5-digit SLOW MID/FAST 500mV 1µV 15Hz to 300kHz 200Hz to 300kHz less than approx. 1MW // 100pF 5V 10µV 50V 100µV 500V 1mV 45Hz to 100kHz 200Hz to 100kHz 750V 1mV 45Hz to 20kHz 200Hz to 20kHz Accuracy: SLOW Sample (Sine wave) Frequency Accuracy* 15Hz to 45Hz 0.5+150 45Hz to 100Hz 0.25+150 100Hz to 30kHz 0.2+150 30kHz to 100kHz 0.5+300 100kHz to 300kHz 2.5+1000 Coefficient to input other than sine wave Crest Factor Frequency 1 to 1.5 1.5 to 2 2 to 3 15Hz to 30kHz 0.05% 0.15% 0.30% 30kHz to 300kHz 0.20% - - Resnponse time Sample Rate Resolution Reading Rate Response Time SLOW 5.5-digit 4 times/sec less than 3 sec MID/FAST 5.5-digit 20 times/sec less than 2 sec Max. input voltage: 780Vrms, ± 1100V DC (continuous) In the case of DC+ACV, 500 (less than 45Hz) or 300 (45Hz or higher) must be added to the value of Accuracy digit. Sample rate of FAST becomes the same values as MID (approx. 20 times/sec).

5. DC Current (DCA)

Range Resolution Accuracy* Input Resistance 5.5-digit 4.5-digit SLOW/MID FAST 5mA 10nA 100nA 0.05+7 0.05+17 less than 150W 50mA 100nA 1µA less than 15W 500mA 1µA 10µA less than 2W 10A 100µA 1mA 0.2+7 0.2+17 less than 0.1W Auto range is not available at 5mA to 500mA range and 10A range because of using different input terminals. Max. input current: 5mA to 500mA range 500mA (FUSE 0.5A/250V) 10A range 10A (FUSE 15A/250V)

6. AC Current (ACA, DC+ACA)

Range Resolution Measurement Range Input Resistance 5.5-digit SLOW/MID FAST 5mA 10nA 15Hz to 5kHz 200Hz to 5kHz less than 150W 50mA 100nA less than 15W 500mA 1µA 45Hz to 5kHz less than 2W 10A 100µA less than 0.1W Accuracy: SLOW Sample (Sine wave) 5% or more against the range Frequency Accuracy* Crest Factor 1 to 1.5 1.5 to 2 2 to 3 15Hz to 45Hz 1+200 0.05% 0.15% 0.30% 45Hz to 1kHz 0.4+200 1kHz to 5kHz 5.0+200 Response time Sample Rate Resolution Reading Range Response time SLOW 5.5-digit 4 times/sec less than 3 sec MID/FAST 5.5-digit 20 times/sec less than 2 sec Max. input current: 5mA to 500mA range 500mA (FUSE 0.5A) 10A range 10A (FUSE 15A) DC Component on input current must be included in the Max. input current. In the case of 10A range at 45Hz to 1kHz, 0.3 must be added to %. In the case of DC+ACA, 500 (less than 45Hz) or 300 (45Hz or higher) must be added to the value of Accuracy digit. Sample rate of FAST becomes the same value as MID (approx. 20 times/sec).

7. Resistance (2 WireW/4 WireW)   4 WireW: VOAC7522/7521A only

Range Resolution Accuracy* Test Current SLOW/MID FAST SLOW/MID FAST 50W 0.1mW 1mW 0.025+10 0.025+15 approx. 10mA 500W 1mW 10mW 0.014+3 0.014+8 approx. 10mA 5kW 10mW 0.1W approx. 1mA 50kW 0.1W 1W approx. 100µA 500kW 1W 10W 0.015+3 0.015+33 approx. 10µA 5MW 10W 10W 0.033+30 0.033+30 approx. 1µA 50MW 100W 100W 0.25+30 0.25+30 approx. 100nA 500MW 1kW 1kW 1.5+50 1.5+50 approx. 10nA Max. input voltage: ± 500V peak Open circuit test voltage: less than 12V The accuracy at 50W to 5kW range are specified after zero compensation through the REL operation. Sample rate of FAST at 5MW to 500MW range becomes the same value as MID (approx. 20 times/sec).

8. Low-Power Resistance (2 WireW)

Range Resolution Accuracy* Test Current SLOW/MID/FAST SLOW/MID FAST 500W 10mW 0.1+5 0.1+15 approx. 1mA 5kW 0.1W approx. 100µA 50kW 1W approx. 10µA 500kW 10W 0.2+30 0.2+40 approx. 1µA 5MW 100W 0.2+30 approx. 100nA 50MW 1kW 1.5+30 1.5+30 approx. 10nA Max. input voltage: ± 500V peak Open circuit test voltage: less than 12V The accuracy at 500W to 5kW range are specified after zero compensation through the REL operation. Sample rate of FAST at 5MW to 500MW range becomes the same value as MID (approx. 20 times/sec). Indications are in 4.5 digits for SLOW, MID, and FAST.

9. Diode
	Test Current Measurement Range Accuracy* Open Circuit Test Voltave Max. Input Voltave approx. 1mA or 10mA 0.1mV to 5.0999V 0.014+13 less than 12V ± 500V peak

10. Temperature

Thermocouple Temperature Range to be Measured Accuracy* Resolution Max. Input Voltave R -50 to 0°C 0.2+70 0.1°C ± 500V peak 0 to +100°C 0.2+50 +100 to +1768°C 0.2+30 K(CA) -270 to -100°C 0.15+50 -100 to 0°C 0.15+35 0 to +1372°C 0.15+20 T(CC) -270 to -100°C 0.15+50 -100 to 0°C 0.15+35 0 to +400°C 0.15+20 J(IC) -210 to -100°C 0.15+50 -100 to 0°C 0.15+35 0 to +1200°C 0.15+20 E(CRC) -270 to -100°C 0.15+50 -100 to 0°C 0.15+35 0 to +1000°C 0.15+20 The above accuracy values do not include the thermocouple accuracy. ±0.1°C/°C is added (for all thermocouples) with the operating ambient temperature of this product at 0°C to 18°C and 28°C to 50°C. ±0.3°C/°C is added (for all thermocouples) in the temperature range to be measured at -200°C or lower. The reference thermo electric force is calculated by the broken line approximation according to JIS C 1602-1995. If this product and the thermocouple are connected via a plug, an error for contact temperature compensation is added.

11. Frequency (AC couple, Crest Factor: less than 3)