UEi Test Instruments DM397 User Manual
Page 12
Feature Summary
DC Voltage
NMRR
: >60dB @ 50/60 Hz
CMRR
: >120dB @ DC, 50/60 Hz, Rs = 1k
Input impedance
: 10MΩ, 30 pF nominal
(50MΩ, 100 pF nominal for 50m V
& 500mV ranges)
AC Voltage
CMRR
: >60dB @ DC to 60 Hz, Rs = 1kΩ
Input impedance
: 10MΩ, 30 pF nominal
(50MΩ, 100 pF nominal for 500m V range)
DC Current
AC Current
(AC+DC) Voltages and (AC+DC) Current
Resistance
Open Circuit Voltage: <1.3 V DC
*1.
Using relative (REL∆) mode
Conductance (5,000 counts only)
DM397-MAN
P. 11
Backlight
For clear readings in poorly lighted areas
Fast auto ranging
Meter automatically selects the best range quickly
AC+DC total RMS
Choices for AC only, AC+DC readings or AC and DC
(@40Hz to 10 kHz)
Dual display
DBm, dBV
User selectable impedance references for dBm
User selectable voltage references for dBV
Auto HOLD
Holds readings on display
Continuity/Open test
Beeper sounds
Fast analog bar graph
25 segments for view of fast events and trends
Memory locations
20
Duty cycle/pulse width
Measures the time that the signal is ON or OFF in % or
milliseconds
MIN/MAX mode
Record maximum, minimum and average values
1mS PEAK mode
Captures peaks of 1 millisecond
Close-case calibration
No internal adjustment necessary
Batter/fuse access door
Battery or fuse replaceable without voiding calibration
High-impact over molded case
Protective feature for the meter and user
Range
Resolution
Accuracy
50 mV
1 µV
0.05% + 10
500 mV
10 µV
5 V
100 µV
0.05% + 2
50 V
1 mV
500 V
10 mV
1000 V
100 mV
0.1% + 2
Range
Resolution
Accuracy
40Hz - 1kHz
4kHz - 5kHz
5kHz - 20z
20kHz - 50kHz
500 mV
10 µV
0.3%+10
1.0%+10
2.0%+20
Unspecified
5 V
100 µV
50 V
1 mV
0.3%+10
0.5%+10
0.5%+10
0.8%+20
500 V
10 mV
1000 V
100 mV
0.4%+10
0.5%+20
Unspecified
Unspecified
Range
Resolution
Accuracy
500 µA
10 nA
5 mA
100 nA
0.1% + 5
50 mA
1 µA
500 mA
10 µA
5 A
100 µA
0.3% + 10
10 A
1 mA
0.3% + 20
Range
Resolution
Accuracy
40Hz - 1kHz
1kHz - 10kHz
500 µA
10 nA
5 mA
100 nA
0.3% + 5
0.8% + 10
50 mA
1 µA
500 mA
10 µA
5 A
100 µA
0.4% + 10
Unspecified
10 A
1 mA
0.4% + 20
Function
Range
Resolution
Accuracy
40Hz - 1kHz
1kHz - 10kHz
DC mV
500 mV
100 µV
0.5% + 5
0.8% + 5
5 V
1 mV
DC V
50 V
10 mV
0.5% + 3
0.8% + 3
500 V
100 mA
1000 V
1 V
0.8% + 5
0.8% + 5
DC µA
500 µA
100 nA
5 mA
1 µA
0.5% + 3
1.0% + 5
DC mA
50 mA
10 µA
500 mA
100 µA
DC A
5 A
1 mA
0.8% + 10
Unspecified
10 A
10 mA
Range
Resolution
Accuracy
50 Ω
0.001 Ω
0.5% + 20 *
1
500 Ω
0.01 Ω
0.1% + 5 *
1
5 kΩ
0.1 Ω
50 kΩ
1 Ω
0.1% + 2
500 kΩ
10 Ω
5 MΩ
100 Ω
0.3% + 5
50 MΩ
1 kΩ
0.5% + 20
Range
Resolution
Accuracy
50 nS
0.01 nS
0.1% + 10