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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.
  Range Accuracy  
  400.0 mV 0.3% + 4d  
  4.000V, 40.00V, 0.5% + 3d  
  400.0V    
  1000V 1.0% + 4d  
 
DC Voltage Range Accuracy  
50Hz -- 500Hz 400.0mV* 4.0% + 5d  
  4.000V, 40.00V, 1.5% + 5d  
  400.0V    
  1000V 4.0% + 5d  
AC Voltage Range Accuracy*  
  -20 ºC TO 300 ºC 2% + 3 ºC  
  -4 ºF TO 572 ºF 2% + 6 ºF  
  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,
 
  Type-K Temperature is specified from
*Type-K thermocouple range & accuracy
Specified accuracy ± 50 digits for changes > 25ms in duration
 
DC Current Range* Accuracy**  
Capacitance 500.0nF, 5.000µF    
  50.00µF, 500.0µF, 3.5%*** + 6d  
  3000µF    
 
Voltage Range Accuracy Burden
  400.0µA 2.0% + 5d 0.15mV/µA
  4000µA 1.2% + 3d 0.15mV/µA
  40.00mA 2.0% + 5d 3.3mV/mA
  400.0mA 1.2% + 3d 3.3mV/mA
  4.000A 2.0% + 5d 0.03V/A
  10.00A* 1.2% + 3d 0.03V/A
  *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
  4000µA 1.2% + 3d 0.15mV/µA
  40.00mA 2.0% + 5d 3.3mV/mA
  400.0mA 1.2% + 3d 3.3mV/mA
  4.000A 2.0% + 5d 0.03V/A
  10.00A* 1.2% + 3d 0.03V/A
  *10A continuous, 20A for 30 second max with 5 minutes cool down interval
 
Ohms Range Accuracy  
  400.0Ω 0.8% + 6d  
  4.000kΩ, 40.00kΩ, 400.0kΩ 0.6% + 4d  
  4.000MΩ 1.0% + 4d  
  40.00MΩ 2.0% + 4d  
 
Open Circuit Voltage 0.4VDC typical
Audible Continuity Tester
Audible Threshold between 10Ω and 120Ω
  *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
 
Hz Frequency Range* Accuracy**  
  50.00Hz, 500.0Hz, 0.5%+4d  
  5.000kHz,    
  50.00kHz,    
  500.0kHz,    
  1.000MHz    
  *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
 
Diode Tester Open Circuit Voltage Test Current (Typical)  
  < 1.6 VDC 0.25mA  
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 
List price:   $94.21
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