Troubleshooting, Specifications – UEi Test Instruments DL99B User Manual
Page 7
Troubleshooting
NOTE: This unit contains no user serviceable parts beyond those listed in
table above. In the event your instrument is physically damaged or does not
function properly after taking the listed action, please return the instrument
to UEi following the warranty and service instructions.
Specifications
Measurement limits
General Specifications
Electrical Specifications
*1000 V AC and Dc scales autorange from 400 to 1000 when greater than
400 volts are applied.
If I see this
I should check for
Then take this
malfunction
corrective action
Debris on switch controls
Move switch through all
functions 3 to 4 times
Instrument does not
Battery voltage
Replace low battery
turn on
Rotary switch position
Ensure switch moves freely
and is set to a
measurement position
Instrument turns on but
Peak Hold button pressed
Look for PEAK or HOLD
LCD indicates some
icons displayed on the LCD
unreasonable or
HOLD button pressed
Turn off one or both buttons
unchanging value
Short test leads together -
A value appears
Stray voltage or EMF fields
If a value near 000 appears,
on screen with no
instrument is OK
input applied
Move meter and leads
away from devices that
create electrical fields
Defective test leads
Short test leads together
in the 400 ohm scale -
Expect less than .5Ω
A known value is not
PEAK or HOLD buttons pressed
Turn off one or both
displayed on the LCD
buttons (check for icons
when measured
on LCD)
Bad test lead connections
Ensure test leads are fully
inserted and free of
corrosion or dirt
DC Amps not zeroed
Move meter away from
power source and press
DC or ZERO for 2 seconds
Battery voltage
Replace low battery
Jaws are not closed tight
Clean top and bottom
mating surfaces of
clamp jaws
Meter reading is
Rotary selector knob is offset
Ensure knob is firmly
unstable
placed in switch position
Bad test lead connection
Ensure there is no
insulating material, dirt
or debris at contact points
No audible tone with
Improper selector position
Tone sounds only in
near zero resistance
continuity mode -
value
Place selector in
position
Amps reading does
Proper switch position
Ensure switch is in proper
not work
AC or DC amps position
(A AC or A DC)
DL99B-MAN
P. 6
AC Amperage
1000 Amps
DC Amperage
1000 Amps
AC Voltage
1000 Volts
DC Voltage
1000 Volts
Ohms
400 Kilohms
Continuity
< 40 ohms
Size H x W x L, in (mm)
9.20” x 3.42” x 1.77”
(234 x 87 x 45)
Maximum Jaw Opening
1.25” (32 mm)
Storage Temperature
-4˚ to 140˚F
(-20˚ to 60˚C)
Operating Temperature
32˚ to 113˚F
(0˚ to 45˚C)
Relative Humidity
0% to 80% RH
(Storage and Use)
Weight (approximate)
14.8 oz (420 g)
Electrical Certification Standards:
IEC 1010-1 CAT III 600 Volts
1000 Amps AC/DC
CSA C22.2 No. 1010.1
ISA S 82,01
Battery Type
9V, NEDA 1604, 6F22 or 006P
Function
Range
Resolution
Accuracy
AC Amps @
400 A
0.1 A
±(2% + 5 digits)
(50 Hz to 450 Hz)
1000 A
1 A
DC Amps
400 A
0.1 A
1000 A
1 A
±(1.5% + 3 digits)
AC Volts*
400 V
0.1 V
±(1.9% + 3 digits)
(50 Hz to 400 Hz)
1000 V
1 V
DC Volts*
400 mV
0.1 mV
±(1.0% + 2 digits)
400 V
0.1 V
1000 V
1 V
Ohms
Ω
400
Ω
0.1 Ω
±(1.0% + 2 digits)
40 K
Ω
0.01 KΩ
Continuity
400 Ω
600 VΩ
Tone sounds @ < 40 Ω