Amprobe PM55A Specifications

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

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