Matco Tools MD251 - Measurement Specification Details; Audible Continuity and Diode Tester Specs; DC and AC Current Specifications; EF-Detection and Hz Function Specs

13
Audible Continuity Tester
Audible Threshold: Between 10 and 80
Response time: 32ms
Diode Tester
RANGE
Accuracy
1.000V
1.0% + 3d
Test Current: 0.56mA typically
Open Circuit Voltage: < 1.8VDC typically
DC Current
RANGE
Accuracy
Burden
Voltage
600.0A
0.5%+5d
0.10 mV/uA
6000A
0.5%+3d
60.00mA
0.5%+5d
1.7 mV/mA
600.0mA
0.5%+3d
6.000A
1.2%+6d
0.03V/A
8.00A
1)
1.8%+6d
1) 8A continuous, >8A to 15A for 30 sec. max
with 5 minutes cool down interval
AC Current
RANGE
Accuracy
Burden
Voltage
50HZ ~ 400HZ
600.0A, 6000A
1.0%+3d
0.10 mV/uA
60.00mA, 600.0mA
1.7 mV/mA
6.000A
1.2%+6d
0.03V/A
8.00A
1)
1.8%+6d
1) 8A continuous, >8A to 15A for 30 sec. max
with 5 minutes cool down interval
Logic Level Hz (mV Function)
RANGE
Sensitivity
(square wave)
5.00 Hz ~ 500.0 kHz
3 Vpeak
5.00 Hz ~ 1.000 MHz
5 Vpeak
Accuracy: 0.03%+2d
Hz (Line) @ ACV, DCV, Current &
Function
Sensitivity
(Sine RMS)
Range
6V
0.4V
10Hz - 10kHz
60V
4V
10Hz - 50kHz
600V
40V
10Hz - 50kHz
1000V
400V
45Hz - 1kHz
600A
40A
10Hz - 10kHz
6000A
400A
10Hz - 10kHz
60mA
4mA
10Hz - 10kHz
600mA
40mA
10Hz - 10kHz
6A
1A
10Hz - 1kHz
10A
6A
10Hz - 1kHz
Accuracy: 0.03%+3d
Non-Contact EF-Detection
Typical Voltage
Bar-Graph
Indication
20V (tolerance: 10V ~ 36V)
-
55V (tolerance: 23V ~ 83V)
- -
110V (tolerance: 59V ~ 165V)
- - -
220V (tolerance:124V ~ 330V)
- - - -
440V (tolerance:250V & 1000V)
- - - - -
Indication: Bar-graph segments & audible beep
tones proportional to the field strength
Detection Frequency: 50/60Hz
Detection Antenna: Top-right end of the meter
Probe-Contact EF-Detection: For more precise
indication of live wires, such as distinguishing
between live and ground connections, use
the Red (+) test probe for direct contact
measurements