Page 1
Data Sheet
300V
600V
PM55A
Digital Multimeter
The compact precision DMM with AutoTect™ and VolTect™
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.
The ultimate shirt-pocket sized
meter. Only 3/8” thick and less than
3 oz in weight with full functionality offering ac and dc voltage to 600
V, AC and DC current to 2000 μA,
resistance to 6 Megohm, capacitance
to 2000 μF, frequency to 30 kHz,
diode test and continuity w/beeper.
It also offers VolTect,™ a built-in,
non-contact voltage detector for AC
voltages.
Another key feature is AutoTect,™
which automatically selects between
AC voltage, DC voltage or resistance
measurement based on the test
point to which the leads are
connected. Fully autoranging, this
meter offers nine different measurement functions plus features that
are usually found in much more
expensive and larger meters. The
digital display is oversized with large
digits and unit icons in the display.
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 this small offers such
performance and high safety ratings.
Includes a silicone protective holster,
deluxe carrying case, attached test
leads, battery and manual.
AutoTect™ feature directs the meter to know if it is measuring AC ■
volts, DC volts or resistance with no user interface
The AutoTect™ feature has lower input impedance which zeros
■
out ghost voltages
Measures AC/DC current, capacitance, frequency, continuity with
■
beeper plus includes Voltect,™ a built-in, non-contact voltage
detector
■
Large oversize digital display
Protective silicon holster included, attached test leads, battery, ■
deluxe carry case and manual
One-year, no-hassle warranty
■
(note: $500 MSLP limit)
Amprobe® Test Tools
www.Amprobe.com
Page 2
PM55A Digital Multimeter
Data Sheet
General Specifications
Display and update rate 3-5/6 digits 6000 counts; Updates 5 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) 6 mA for voltage functions on Auto-V W position & 2 mA for other functions
Automatic Power Off
(APO) timing Idle for 3 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 AutoTect™ (Automatic V & W selection) and VolTect™ (Electric Field Detection)
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
Specifications
Function Range Accuracy
RF field @ 3 V/m Specified accuracy + 45 d (capacitance not specified)
DC Voltage
6.000 V ± (0.5 %+3 dgt)
60.00 V ± (1.0 %+5 dgt)
600 V (AutoTect™ Lo-Z) 2.0 %
600 V (Hi-Z only) 1.5 % + 5 dgt
NMRR > 30 dB @ 50 Hz/60 Hz
CMRR > 100 dB @ DC, 50 Hz/60 Hz; Rs=1 kW
Input impedance AutoTect™ Lo-Z V DC: 833 kW (4.2 kW when displaying AUTO), 90 pF nom.
V DC AutoTect™ threshold > +1.2 V DC or < - 0.6 V DC nominal (Hi-Z V DC only)
AC Voltage (50 Hz - 60 Hz)
6.000 V, 60.00 V, 600 V ± (1.5 %+5 dgt)
CMRR > 60 dB @ DC to 60 Hz, Rs=1 kW
Input impedance AutoTect™ Lo-Z V AC: 160 kW, 160 pF nominal
Hi-Z ACV 5 MW, 90 pF nominal
ACV AutoTect™ threshold > 1.5 V ac (50 Hz/60 Hz) nominal
Amprobe® Test Tools
www.Amprobe.com
Page 3
PM55A Digital Multimeter
Specifications
Function Range Accuracy
Capacitance
100.0 nF, 1000 nF, 10.0 μF,
100.0 μF, 2000 μF
1Accuracy below 50 nF is not specified 4Specified with battery voltage above 2.8 V (half full battery).
2Accuracies with film capacitor or better Accuracy decreases gradually to 12% at low battery warning
3Updates > 1 minute on large values voltage of approx. 2.4 V.
Resistance
Range Accuracy
600.0 W ± (2.0%+6 dgt)
6.000 kW ± (1.2%+6 dgt)
60.00 kW, 600.0 kW ± (1.0%+4 dgt)
6.000 MW ± (2.0%+4 dgt)
Open circuit voltage 0.4 V DC typical
1AutoTect™ is for 6.000 kW ~ 6.000 MW ranges
2Add 40 dgt to specified accuracy while reading is below 20 % of range
Frequency
10.00 Hz - 30.00 kHz
10.00 Hz - 999.9 Hz ± (0.5 %+4 dgt) < 600 V Sine-rms
1Sensitivity (Sine-rms): Hz in Auto-V ( position:> 3 V
2Line-level Hz in V position: @6.000 V AC range: > 3 V; @60.00 V AC range: > 6 V; @600.0 V AC range: > 60 V
DC μA Current
Range Accuracy Burden voltage
400.0 μA ± (1.5 %+3 dgt) 6 mV/μA
2000 μA ± (1.2 %+3 dgt) 6 mV/μA
AC μA Current
Range Accuracy Burden voltage
400.0 μA ± (2.0 %+3 dgt) 6 mV/μA
2000 μA ± (1.5 %+3 dgt) 6 mV/μA
VolTec t™
Typical voltage Bar graph indication
15 V to 55 V –
30 V to 85 V – –
55 V to 145 V – – –
85 V to 190 V – – – –
above 120 V – – – – –
Indication Bar graph segments & audible beep tones proportional to field strength
Detection frequency 50/60 Hz
Detection antenna Top left corner of the meter
Audible Continuity Tester (600 W range)
Open circuit voltage 0.4 V DC typical
Audible threshold 50 W to 300 W
Diode Test
Diode test current 0.48 mA
Open circuit voltage < 1.6 V DC
1 3
± (3.5 %+6 dgt)
1, 2
± (0.5 %+4 dgt) < 2 0 V Sine-rms
2
2
2
Data Sheet
www.Amprobe.com
Page 4
PM55A Digital Multimeter
Included Accessories
H-PMA protective holster, VC3A zippered
carrying case, battery installed and user’s
manual.
Data Sheet
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
Amprobe® Test Tools
©2007 Am probe Test Tools. All rights res erved.
9/20 07 2277165 D-US- N Rev B
www.Amprobe.comwww.Amprobe.com
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