UEi Test Instruments DM397 - Manual (Page 11)

Battery and Fuse Replacement
Always use a fresh replacement battery of the specified size and type.
Immediately remove the old or weak battery from the meter and
dispose of it in accordance with your local disposal regulations. Batteries
can leak chemicals that corrode electronic circuits. If your meter is not
going to be used for a month or more, remove and store the battery in
a place that will not allow leakage to damage other materials.
Auto/Manual Range Operation
Press the “RANGE” push-button momentarily to select manual and the
meter will stay in the range it is in when the LCD icon “AUTO” turns off.
Press the button momentarily again to step through the ranges. Press
and hold the “RANGE” push-button for two seconds or more to
resumes auto ranging.
WARNING!
Disconnect the test leads from the circuit under test and from the meter
prior to removing or installing batteries.
Auto Fuse Detection
The meter automatically verifies the integrity of the fuses when you set
the rotary function knob to the amps or milliamps range and plug a test
lead into either the “A” or the “mAµA” terminal. In either case, if an
open fuse is detected, the word “FUSE” shows on the primary display.
To install a new battery or fuse, follow these procedures:
1. Turn the rotary switch to OFF and remove the test leads from the
input terminals.
2. Remove the screw and press above where indicated on back of
meter to remove the cover.
3. Remove old battery of fuse and replace with specified new ones.
4. Reinstall battery cover and screw.
WARNING!
Under no circumstances should you expose batteries to extreme heat or
fire as they may explode and cause injury.
Tro u b l e s h o o t i n g
Always check the battery and fuses when you encounter trouble. Also
inspect the test leads for breaks or damage and replace if damage
is visible.
If the meter’s V/Ω input terminal has been subjected to high voltage
transients (caused by lightning or switching surge to the system under
test) by accident or abnormal operating conditions a series fusible
resister may be blown. These are circuit components that are designed
to open in the event of transients to protect the user and the meter.
Most measuring functions through the terminal will then be open and
not functional.
If this occurs, the series fusible resistor and spark gaps should be
replaced by qualified personnel. Refer to the limited warranty section
for obtaining warranty or repair service.
S p e c i f i c a t i o n s
Safety and Compliance
Physical Specifications
DM397-MAN P. 10
Maximum voltage between 1000V AC/DC
any terminal and earth ground
Compliance Complies with CSA C22.2 No 1010.1-92, ASNI/ISA-S82,
01-94 to 1000V over voltage CAT III
Certifications UL & cUL standard UL 3111-1 listed
CE-marking certified
Surge protection 8kV peak per IEC 1010.1-92
Fuse protection fro mA or µA 1000V / 440 mA IR 10 kA fast fuse
inputs
Fuse protection for A input 1000V / 11 A UR 10 kA fast fuse
Display (LCD) 50,000 count digital primary
5,000 count secondary
Updates 4/sec. nominal
Analog - 25 segments, updates 40/sec.
Operating temperature 32˚ to 122˚F (0˚ to 50˚C)
Storage temperature -4˚ to 140˚F (-20˚ to 60˚C)
Temperature coefficient Nominal 0.15 x (specified accuracy)/˚C @
(0˚ to 18˚C or 28˚ to 50˚C) Otherwise as specified
Relative Humidity 0% to 80% @ 32˚ to 95˚F
0% to 70% @ 96˚ to 122˚F
Altitude Operating - up to 6,500 feet (2,000 m)
Storage - up to 32,000 feet (10,000 m)
Battery type Single 9V battery - NEDA 1604, JIS 006P or IEC 6F 22
Battery life 150 hrs. typical (with backlight off)
Shock vibration Per MIL-T-PRF 28800 for Class II instruments
Pollution degree 2
Electromagnetic capability Susceptibility - commercial limits for EN 50082-1
(EMC) Emissions - commercial limits for EN 50081-1
Size (H x W x D) 8.2” x 4.1” x 2.1” (208 x 103 x 54 mm)
Weight Approximately 1.44 lb (655 g)
Warranty 5 years
Calibration interval 1 year