UEi Test Instruments DM393 - Manual (Page 8)

S p e c i f i c a t i o n s
Safety and Compliance
Physical Specifications
Specifications
Feature Summary
Electrical Specifications
Accuracy is given as ±([% of reading] + [number of digits]) at 64˚ to 82˚F
with relative humidity up to 80%, for period of one year after
calibration. True RMS responding accuracies are specified from 5% to
100% of range or otherwise specified; Crest Factor < 3:1 at full scale
and < 6:1 at half scale.
NMRR >60db @ 50/60 Hz
CMRR > 120db @ DC, 50/60 Hz, Rs = 1kΩ
(Common Mode Rejection Ratio)
Input Impedance 10 MΩ, 30 pF nominal
( 50 MΩ, 100 pF nominal for 400
mV ra n g e )
AC Voltage
CMRR >60db @ DC Hz, Rs = 1kΩ
(Common Mode Rejection Ratio)
Input Impedance 10 MΩ, 30 pF nominal
( 50 MΩ, 100 pF nominal for 400
mV ra n g e )
* 1 Accuracy for 400 Hz to 1 kHz
DM391/393-MAN P. 7
Maximum voltage between any 1000 V AC/DC
terminal and the ground
Compliances
Complies with CSA C22.2 No 1010.1-92,
NASI/ISA-S82, 01-94 to 1000 V
overvoltage category III
Certifications UL & cUL standard UL 3111-1
listed CE-marking certified
Surge protection 8kV peak per IEC 1010.0-92
Fuse protection fro mA or µA inputs 1000 V/440mA IR 10kA FAST fuse
Fuse protection for A input 1000 V/11A IR 10kA FAST fuse
Display Digital -4000 counts display;
updates 5 times/sec.
Operating temperature 32˚ to 104˚F (-0˚ to 40˚C)
Storage temperature -4˚ to 140˚F (-20˚ to 60˚C)
Temperature coefficient Nominal 0.15 x (specified accuracy)/˚C @
(0˚ to 8˚C or 28˚ to 40˚C),
or otherwise specified
Relative humidity 0% to 80% @ (32˚ to 95˚F)
0% to 70% @ (95˚ to 104˚F)
Altitude Operating - up to 6,500 feet
Storage - 32,000 feet
Battery type Single 9V battery - NEDA 1604, JIS
006P ir IEC 6F 22
Battery life 250 hrs. typical (w/backlight off) DM393
250 hrs. typical (w/backlight off) DM391
Shock degree Per MIL-T-PRE 28800 for Class II
instruments
Pollution degree 2
Electromagnetic compatibility Susceptibility - commercial limits for
(EMC) EN 50082-1
Emissions - commercial limits for
EN 50081-1
Size 1.6 x 3.6 x 6.8 inches
Weight 13.6 oz.
Warranty Five (5) year limited warranty
Calibration interval One (1) year recommended
Backlight For clear readings in poorly lit areas
Fast autoranging Meter automatically selects the best
range momentarily
HOLD Holds readings on display
Continuity/open test Beeper sounds
Battery/fuse access door Battery or fuse replaceable without
voiding calibration
High-impact over-molded case Protective holster features
Range Resolution Accuracy
DM391 DM393
400mV 100µV
4V 1mV
40V 10mV 0.5% + 2 0.5% + 2
400V 100mV
1000V 1V 0.75% + 3 0.75% + 3
Range Resolution Accuracy
40 Hz - 400 Hz 400 Hz - 1 kHz 1 kHz - 20 kHz
D M 3 9 1 D M 3 9 3 D M 3 9 3
400mV 100µV 2.0% + 10 2.0% + 10
4V 1mV
40V 10mV 0.75% + 3 0.75% + 3 2.0% + 3
400V 100mV
1000V 1V 1.0% + 5 1.0% + 5 2.0% + 5* 1 -