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Amprobe AM-250
Catalog #: 3524986
True RMS Auto/Manual Professional Electrical/HVAC Multimeter, 13 Features AC/DC 1000V
- Overview
- Specifications
- Summary
Product Highlights
- 13 Features
- Measures AC/DC voltage up to 1000V, current, resistance, frequency, capacitance and temperature
- Audible continuity
- Diode test
- Auto and manual ranging
- Relative zero mode
- Data hold
- Peak hold (30ms response time)
- Backlight display
- Large, easy to read LCD display
- Beep-jack audible warning against improper connection
- Auto power off
Each Unit Includes
- 1 - Test leads (pair)
- 1 - banana plug K-type thermocouple
- 1 - batteries (installed)
- 1 - users manual
| Accuracy is ±(% reading digits + number of digits) or otherwise specified, at 23 ºC ±5 ºC & less than 75% R.H. |
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Range |
Accuracy |
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400.0 mV |
0.3% + 4d |
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4.000V, 40.00V, |
0.5% + 3d |
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400.0V |
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1000V |
1.0% + 4d |
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| DC Voltage |
Range |
Accuracy |
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| 50Hz -- 500Hz |
400.0mV* |
4.0% + 5d |
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4.000V, 40.00V, |
1.5% + 5d |
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400.0V |
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1000V |
4.0% + 5d |
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| AC Voltage |
Range |
Accuracy* |
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-20 ºC TO 300 ºC |
2% + 3 ºC |
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-4 ºF TO 572 ºF |
2% + 6 ºF |
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NMRR: >50dB @ 50/60Hz
CMRR: >120dB @ DC, 50/60Hz, Rs=1k1
CMRR: >60dB @ DC to 60Hz, Rs=1k1
Input Impedance: 10M1, 30pF nominal (1000M1 for 400.0mV range)
*Selection by RANGE button manually, |
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Type-K Temperature is specified from
*Type-K thermocouple range & accuracy
Specified accuracy ± 50 digits for changes > 25ms in duration |
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| DC Current |
Range* |
Accuracy** |
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| Capacitance |
500.0nF, 5.000µF |
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50.00µF, 500.0µF, |
3.5%*** + 6d |
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3000µF |
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| Voltage |
Range |
Accuracy |
Burden |
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400.0µA |
2.0% + 5d |
0.15mV/µA |
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4000µA |
1.2% + 3d |
0.15mV/µA |
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40.00mA |
2.0% + 5d |
3.3mV/mA |
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400.0mA |
1.2% + 3d |
3.3mV/mA |
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4.000A |
2.0% + 5d |
0.03V/A |
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10.00A* |
1.2% + 3d |
0.03V/A |
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*10A continuous, 20A for 30 second max with 5 minutes cool down interval |
| AC Current |
Range |
Accuracy |
Burden |
| 50Hz -- 500Hz |
400.0µA |
2.0% + 5d |
0.15mV/µA |
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4000µA |
1.2% + 3d |
0.15mV/µA |
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40.00mA |
2.0% + 5d |
3.3mV/mA |
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400.0mA |
1.2% + 3d |
3.3mV/mA |
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4.000A |
2.0% + 5d |
0.03V/A |
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10.00A* |
1.2% + 3d |
0.03V/A |
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*10A continuous, 20A for 30 second max with 5 minutes cool down interval |
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| Ohms |
Range |
Accuracy |
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400.0Ω |
0.8% + 6d |
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4.000kΩ, 40.00kΩ, 400.0kΩ |
0.6% + 4d |
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4.000MΩ |
1.0% + 4d |
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40.00MΩ |
2.0% + 4d |
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| Open Circuit Voltage |
0.4VDC typical |
| Audible Continuity |
Tester |
| Audible Threshold |
between 10Ω and 120Ω |
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*Additional 50.00nF range accuracy is not specified
**Accuracies with film capacitor or better
***Specified with battery voltage above 2.8V (approximately half full battery).
Accuracy decreases gradually to 12% at low battery warning voltage of approximately 2.4V |
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| Hz Frequency |
Range* |
Accuracy** |
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50.00Hz, 500.0Hz, |
0.5%+4d |
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5.000kHz, |
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50.00kHz, |
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500.0kHz, |
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1.000MHz |
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*Additional 5.000Hz range accuracy & sensitivity are not specified
**Accuracy is specified at < 20VAC rms Input Signal: Square wave with duty cycle > 40% & < 70%;
or Sine wave Vrms AC Sensitivity: 10Hz--20Hz : > Sine 0.9Vrms; 20Hz--500kHz: > 2.6Vp; or Sine
1.9Vrms; 500kHz--1MHz: > 4.2Vp; or Sine 3Vrms Update Rate: 2 per second nominal |
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| Diode Tester |
Open Circuit Voltage |
Test Current (Typical) |
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< 1.6 VDC |
0.25mA |
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| Included Accessories |
Test leads (pair), Banana plug K-type thermocouple, batteries installed, user’s manual |
| Multimeters Template |
| Type |
Digital |
| Style |
Hand-Held |
| Measures AC V |
Yes |
| Measures DC V |
Yes |
| Measures AC A |
Yes |
| Measures DC A |
Yes |
| True RMS |
No |
| Maximum Voltage AC |
1000 V |
| Maximum Voltage DC |
1000 V |
| Maximum Voltage AC |
10 A |
| Maximum Current DC |
10 A |
| Basic Accuracy V DC |
± 1% Rdg + 4D |
| # Digit Display |
3.75 |
| Counts |
4000 . |
| Backlight |
Yes |
| Manual/Autoranging |
Both |
| Dual Display |
No |
| Analog Bargraph on Display |
No |
| Decibels |
No |
| Resistance |
Yes |
| Frequency |
Yes |
| Continuity |
Yes |
| Capacitance |
Yes |
| Temperature |
Yes |
| Diode Testing |
Yes |
| CAT Rating |
III |
| IS |
No |
| Peak Hold |
Yes |
| Overload Protector |
Yes |
| Kelvin 4-Wire Measurement Capability |
No |
| Wireless Display |
No |
| Data Hold |
Yes |
| Low-Pass Filter |
No |
| Duty Cycle % |
40% to 70% |
| Unique Features |
Large, Easy to Read LCD Display, BEEP-JACK Audible Warning Against Improper, Auto Power Off |
| Warranty |
1 YEARS |
| Warranty Details |
1 Year from the Date of Purchase, This Warranty Does Not Cover Fuses, Disposable Batteries or Damage from Accident, Neglect, Misuse, Alteration, Contamination or Abnormal Conditions of Operation or Handling |
| Safety Approval |
CSA |
| Product Weight |
0.815 LBS |
| Product Height |
1.8 IN |
| Product Length |
7.6 IN |
| Product Width |
3.8 IN |
| Data Logging |
No |
| Calibration Included |
Factory Calibration |
| Battery Type |
AAA |
| Power Supply Voltage |
Battery Powered |
| Country of Origin |
Taiwan |
| Shipping Height |
3.00 IN |
| Shipping Length |
12.50 IN |
| Shipping Width |
7.25 IN |
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