Page 1
Data Sheet
600V
300V
PM51A
Digital Multimeter
The ultimate shirt-pocket DMM with frequency & capacitance
No hassle
warranty
No waiting.
No shipping
charges.
Our commitment to
high-quality products
and customer service
is demonstrated by
our industry exclusive
“No Hassle” warranty.
In the unlikely event
that an Amprobe Test
Tool requires warranty
service, any of our
local dealers are
authorized to replace
it, on the spot.
This shirt-pocket-sized meter is only
3/8” thick and weighs less than 3 oz.
With full functionality offering AC
and DC voltage to 600 V, resistance
to 40 Megohm, capacitance to 3000
μF, frequency to 1 MHz, continuity
w/beeper, and diode test.
Fully autoranging, this meter
offers seven different measurement
functions with 27 full ranges of
measurement. The digital display is
oversized with large digits and annunciators. In spite of its size,
this meter is fully safety rated to
CAT III 300 V, CAT II 600 V and is UL
approved. No other meter offers this
small size with such performance
and high safety ratings.
Measures AC and DC voltage, resistance, continuity with beeper, ■
capacitance and frequency
Fully autoranging with 7 measurement functions and 27 ranges
■
Large oversize digital display with measurement results ■
and the unit icon
Data Hold freezes
■
measurement value
on the display
■
One-year,
no-hassle
warranty
(note: $500 MSLP limit)
Amprobe® Test Tools
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Page 2
PM51A Digital Multimeter
Data Sheet
General Specifications
Display and update rate 3-3/4 digits 4000 counts; Updates 3 per second nominal
Operating temperature 0 °C - 40 °C
Relative humidity Max. 80 % R.H. up to 31 °C, decreasing linearly to 50 % R.H. at 40 °C
Altitude Operating below 2000 m
Storage temperature -20 °C ~ 60 °C, < 80 % R.H. (with battery removed)
Temperature coefficient Nominal 0.15 x (specified accuracy)/ °C @ (0 °C ~ 18 °C or 28 °C ~ 40 °C), or otherwise specified
Sensing Average sensing
Overload protection 600 V dc and V ac rms
Low battery Below approx. 2.4 V
Power supply 3 V standard button battery x 1 (IEC-CR2032; ANSI-NEDA-5004LC)
Power consumption (typical) 2 mA
Automatic Power Off
(APO) timing Idle for 30 minutes
APO consumption (typical) 2.2 μA
Dimension L 113 mm x W 53 mm x H 10.2 mm (4.4 x 2.1 x 0.4 in)
Weight Approx. 78 gm (3 oz)
Special features Data Hold, and 30 ms MAX Hold
Agency approvals CE, cULus
Safety Meets IEC61010-1, UL61010B-1, CAN/CSA-C22.2 No. 1010.1-92, CAT II 600 V and CAT III 300 V,
Pollution Degree 2, Class 2
E.M.C. Meets EN61326
Amprobe® Test Tools
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Page 3
PM51A Digital Multimeter
Data Sheet
Specifications
Function Range Accuracy
DC Voltage
400.0 mV ± (1.0 %+2 dgt)
4.000 V, 40.00 V, 400.0 V ± (2.0 %+2 dgt)
600 V ± (2.5 %+4 dgt)
NMRR > 50 dB @ 50 Hz/60 Hz
CMRR > 120 dB @ dc, 50 Hz/60 Hz; Rs=1 kW
Input impedance 10 MW, 30 pF nominal; (1000 MW for 400.0 mV range)
AC Voltage
50 Hz - 60 Hz 4.000 V, 40.00 V, 400.0 V ± (2.0 %+5 dgt)
60 Hz - 500 Hz 4.000 V, 40.00 V, 400.0 V ± (3.0 %+5 dgt)
50 Hz - 500 Hz 600 V ± (3.5 %+5 dgt)
Input impedance 10 MW, 30 pF nominal
CMRR > 60 dB @ dc to 60 Hz, Rs=1 kW
Capacitance
500.0 nF, 5.000 μF, 50.00 μF,
500.0 μF, 3000 μF
1
Additional 50.00 nF range accuracy is not specified
2
Accuracies with film capacitor or better
3
Updates > 1 minute on large values
4
Specified with battery voltage above 2.8 V (half full battery). Accuracy decreases gradually to 12% at low battery warning voltage of
approx 2.4 V.
Resistance
400.0 W ± (1.5 %+6 dgt)
4.000 KW, 40.00 KW, 400.0 KW ± (1.0 %+4 dgt)
4.000 MW ± (1.5 %+4 dgt)
40.00 MW ± (2.5 %+4 dgt)
Open circuit voltage 0.4 V DC typical
Frequency
400 Hz, 4 kHz, 40 kHz, 400 kHz, 1 MHz 1 ± (0.5 %+4 dgt)
1
Specified at input voltage < 20 V ac rms input signal: Sine-wave, or square-wave with duty cycle > 40 % & < 70 %
Sensitivity (V-peak)
5 Hz - 100 kHz > 1.3 Vp
100 kHz - 500 kHz > 2.2 Vp
500 kHz - 1 MHz > 4.2 Vp
Diode Tester
Test current (typical) 0.25 mA
Open circuit voltage 1.6 V dc
Audible Continuity Tester
Open circuit voltage 0.4 V dc typical
Audible threshold 65 W ±55 W
1 3
± (3.5 %+6 dgt4)
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Page 4
PM51A Digital Multimeter
Data Sheet
Included Accessories
battery (installed) and users manual.
Optional Accessories
H-PMA Protective holster
VC3A Zippered carrying case
Amprobe® Test Tools
website: www.Amprobe.com
email: info@amprobe.com
Everett, WA 98203
tel: 877-AMPROBE
Amprobe® Test Tools Europe
In den Engematten 14
79286 Glottertal, Germany
Tel.: +49 (0) 7684 8009 - 0
©2007 Am probe Test Tools. All rights res erved.
9/20 07 2277152 D-US- N Rev B
Amprobe® Test Tools
www.Amprobe.comwww.Amprobe.com
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