LTR MTI 801 User manual

WARNING
Do not expose the meter to rain or moisture in order to reduce the risk of
fire or electric shock.
Observe the proper safety precautions when working with voltages above
30 V ac rms, 42 V ac peak, or 60 V dc. These voltage levels pose a potential
shockhazardtotheuser.
Inspect test leads, connectors and probes for damaged insulation or exposed
metal before using the meter.
Check the test leads for continuity before use. Do not use if the readings
are high or noisy.
Keep your fingers behind the finger guards of the test leads during
measurement.
Disconnect the test leads from the points before changing functions.
Disconnect circuit power and discharge all high voltage capacitors before
testing resistance.
Always use the proper terminals, switch position, and range for measurements
before connecting the meter to circuit under test.
When servicing the meter, use only specified replacement parts.
Remove test leads from the meter before you open the battery cover.
Donotoperatethemeterwiththebattery cover removed orloosened.
Toavoidfalsereadings,whichcouldresultinpossibleelectricshockorpersonal
injury, replace the battery as soon as the low battery indicator appears.
Avoid working alone.
CAUTION
Disconnect the test leads from the points before changing functions.
Disconnect circuit power and discharge all high voltage capacitors before
testing resistance, or continuity.
Always set the meter to the highest range and work downward for an
unknown value in the manual ranging mode.
INTERNATIONAL ELECTRICAL SYMBOLS
Insulation Resistance Tester
Safety Information
MTI 801 Insulation Resistance Tester is a handheld and battery operated,
Average RMS insulation multimeter capable of testing Insulation, AC or DC
Voltages, Resistance and Continuity.
This manual contains information and warnings that must be followed for
operating the meter safely and maintaining the meter in a safe operating
condition. If the meter is not used in a manner specified in this manual, the
protection provid ed by the meter may be impaired.
This meter complies with UL 61010-1 : 3
rd
Edition, CAN / CSA - C22.2
No. 61010-1-12: 3
rd
Edition, IEC /EN 61010-1: 2010; Overload protection
CAT IV 600V and CAT III1000V.
TERMS IN THIS MANUAL
A Warning identifies conditions and actions that could pose serious hazards
to the user. A Caution identifies conditions and actions that could cause
damage the meter or the equipment under test.
SAFETY INFORMATION
OPERATING INSTRUCTIONS
MTI 801
(041710_1)

LOCK
TEST
TEST
If the resistance of the device is below 40 Ω, there
is a continuity beep tone.
If the resistance of the device is more than 40 Ω,
there is no beep tone.
This is useful for checking wiring connections and
operation of switches.
CAUTION
Turn off power and discharge all capacitors on
circuit to be tested before attempting incircuit
resistance measurements.
Accurate measurement is not possible if
external or residual voltage is present.
INSULATION TEST
CAUTION
Turn off power and discharge all capacitors on circuit to be
tested before attempting Insulation test.
Insert test leads into V and COM input terminals.
Set the rotary selector to the desired test voltage position.
Connect the lead probes tothe circuit undertest.
The display shows until you press and a valid
insulation resistance reading is obtained.
Press and hold TEST button to start the test.
The LCD shows (high voltage warning) symbol along with
the resistance in MΩor GΩ.
The symbol will be displayed on the LCD until the
TEST button is released. The meter displays symbol along
with the maximum resistance for the range when the resistance
is higher than the maximum display range.
NOTE : When the button is pressed before the TEST
button, the test remains active until the
button is pressed again.
LOCK
Release the button before disconnecting the probes
from the circuit under test. Then, the circuit will automatically be
discharged through the meter.
RANGE AUTOHOLD LOCK TEST
SEL
100V
250V
mV
500V
1000V
COM
CATI V
V
6
00V
INSULATION
C
AT III
1000V
SEL
SEL
OPERATING INSTRUCTIONS
AC/DC Voltage
Set the rotary selector to V
position.
The meter defaults at AC.
Press button momentarily
to toggle between AC and
DC.
Insert red lead into V terminal
and black lead into COM
terminal.
Connect black probe to
ground and red probe to the
side of the circuit closest to
the power source.
DC milli-Voltage
Set the rotary selector to mV
position.
Insert red lead into V terminal
and black lead into COM
terminal.
Connect black probe to
negative side of the circuit
and red probe to positive
side of the circuit coming
from the power source.
Resistance
Set the rotary selector to Ω
position. is displayed.
The meter defaults at
Ω
Press button momentarily
to select .
Insert black lead into COM
terminal and red lead into
Ω
terminal.
Touchtheprobesacrossthe
resistance or circuit to be
tested.
RANGE AUTOHOLD LOCK TEST
SEL
100V
250V
mV
500V
1000V
COM
CATI V
V
6
00V
INSULATIO
N
C
AT III
1000V
RANGE AUTOHOLD LOCK TEST
SEL
100V
250V
mV
500V
1000V
COM
CATI V
V
6
00V
INSULATIO
N
C
AT III
1000V
RANGE AUTOHOLD LOCK TEST
SEL
100V
250V
mV
500V
1000V
COM
CATI V
V
6
00V
INSULATION
C
AT III
1000V

17 18
m V
MkG
DISPLAY AND INDICATORS
16
15
14
13
12
11
10
19
21 20
10.
11.
12.
13.
14.
15.
Indicates autoranging.
Indicates direct current or alternating current is
selected.
Indicates Negative Polarity.
Indicates an out of range value in the Insulation
test mode.
High voltage symbol.
Analog bar-graph with scale
(Available in the Insulation mode only).
16.
17.
18.
19.mV...
20.
21.
Low battery alert.
Replace the battery as soon as possible to
ensure accuracy.
annunciator indicates the HOLD function is
selected andannunciators indicate the
Autohold function is selected.
Indicates the Continuity test function is selected.
Indicates the function being selected and / or the
appropriate measurement units.
Indicates an insulation test is performed.
Indicates an insulation test is locked on.
1M
6
5
SEL
CONTROL AND INDICATORS
9
8
7
1
2
3
1. LCD display LCD display with 28 segment bar-graph.
4
2.
3.
4. Selector
5.
V Ω
6. COM
7.
8.
9.
Press this button to initiate an insulation test in the
Insulation test mode.
Pressthisbuttonto enterTestlockmodeintheInsulation
testmode. is displayed on LCD in this mode.
Press again to release the lock.
Turn the power On or Off and select a test function.
Input terminal for insulation test, voltage and
resistance functions.
Common input terminal for all functions.
Switch between AC and DC.
Switch between
Ω and .
Press this buttonfor 2 seconds to enable/ disablelights.
The backlightautomatically turns off after 2 minutes.
Press this button repeatedly to cycle through manual
ranges.
Press this button for 2 seconds to return to the auto
ranging mode. is displayed on LCD only
during auto ranging mode.
Press this button to activate HOLD for capturing
the current displayed value. Press this button again
to activate AUTO HOLD for automatically capturing
a stable reading, beeping to acknowledge,and
holding it on the LCD. Press again to return to normal
operation.
LOCK
TEST
AUTOHOLD
RANGE

ELECTRIC SPECIFICATIONS
1. AC Voltage
Range Resolution Accuracy
(50 Hz ~ 60 Hz)
Overload
Protection
400.0 mV
0.1 mV
(1.0 % + 8 dgts) 1000 Vrms
4.000 V
0.001 V
40.00 V
0.01 V
400.0 V
0.1 V
1000 V
400.0 mV
4.000 V
40.00 V
400.0 V
1000 V
1 V
Input Impedance (nominal) : 10 MΩ, < 100pF
Response : Average RMS
2. DC Voltage
Input Impedance (nominal) : 10 MΩ, < 100pF
3. Resistance
Range Resolution Accuracy
Overload
Protection
400.0 Ω
0.1 Ω
(1.0 % + 5 dgts) 400 Vrms
4.000 kΩ
0.001 KΩ
40.00 kΩ
0.01 KΩ
400.0 kΩ
0.1 KΩ
4.000 MΩ
0.001 MΩ
40.00 MΩ
0.01 MΩ
(1.5%+10dgts)
Input Impedance (nominal) : 10 MΩ, < 100pF
4. Continuity Test
5. Insulation Test
Short-Circuit Test Current (nominal) : 0.5 mA
Auto Discharge : Discharge time <1 sec. for C ≤ 1 uF
Minimum Measurement : 0.1 MΩ
Range Resolution Accuracy
Overload
Protection
0.1 mV
(0.8%+10dgts
)
1000 Vrms
0.001 V
0.01 V
0.1 V
1 V
Overload Protecti
on
Open Circuit Voltage Threshold (Appx.)
400 Vrms
< 0.44 V
< 40 Ω
Output
Voltage
Display
Range Resolution
Test Current Accuracy
100 V
0.01 ~ 20.00 MΩ
0.01 MΩ
0.5mA
@ 100 KΩ(3 % + 5)
20.0 ~ 100.0 MΩ
0.1 MΩ
250 V
0.01 ~ 20.00 MΩ
0.01 MΩ
0.5mA
@ 250 KΩ(3 % + 5)
20.0 ~ 200.0 MΩ
0.1 MΩ
500V
0.01 ~ 20.00 MΩ
0.01 MΩ
0.5mA
@ 500 KΩ
(3 % + 5)
20.0 ~ 200.0 MΩ
0.1 MΩ
200 ~ 500 MΩ
1 MΩ
(5 % + 5)
1000 V
0.01 ~ 20.00 MΩ
0.01 MΩ
0.5mA
@ 1 MΩ
(3 % + 5)
20.0 ~ 200.0 MΩ
0.1 MΩ
200 ~ 2000 MΩ
1 MΩ
(5 % + 5)
Sleep Mode
The meter automatically enters “Sleep mode” after 30 minutes
non -use. The meter comes out of the Sleep mode when a button
is pressed.
The Sleep mode is always disabled in the Hold or Autohold mode
and when performing an insulation test.
Maintenance
Turn instrument off and disconnect test leads.
Clean the instrument by using a damp cloth. Do not use abrasive
cleaners or solvents.
GENERAL SPECIFICATIONS
Operating Temperature
Storage Temperature
Temperature Coefficient
Relative Humidity
Altitude
Safety
: 0 °C to 50 °C (32 °F to 122 °F)
at <75% R.H.
: -20 °C to 60 °C (-4 °F to 140 °F)
at <80% R.H.
: nominal 0.15 x (specified accuracy)
/ °C @ <18°C or >28°C (<64 °F or >82 °F),
or otherwise specified
: 0% to 95% @ 10 °C to 30 °C
(50 °F to 86 °F)
0% to 75% @ 30 °C to 40 °C
(86 °F to 104 °F)
0% to 40% @ 40 °C to 50 °C
(104 °F to 122 °F)
: Operating – up to 2000m
Storage – 10000m
: Complies with UL61010-1: 3rd Edition,
Overload protection
Certifications
Battery
CAN / CSA-C22.2 No. 61010-1-12 :
3rd Edition, IEC / EN 61010-1 : 2010 ;
Overload protaction CAT IV 600V and
CAT III 1000V
: CAT IV 600V and CAT III 1000V
: ETL & cETL and CE
: 6 x AAA batteries
(NEDA 24A or IEC LR03)
Battery Life : Meter use – 1000 hours
Insulation Test use – Meter can perform
at least 1000 tests with alkaline
batteries at room temperature.
These standard tests of 1000 V
into 1 MΩwith a duty cycle of 5
seconds on and 25 seconds off.
Pollution Degree
Dimensions
: 2
: 178mm x 89mm x 48mm
Weight : 425g
Inland: +49 (0)7121/908-101
Export: +49 (0)7121/908-204
Fax: [phone]
Mail: [email protected]
Autotestgeräte LEITENBERGER GmbH
Bahnhofstraße 33
72138 Kirchentellinsfurt
Germany
www.autotestgeraete.de
Subject to technical alteration. 02/2017
400.0 mV
4.000 V
40.00 V
400.0 V
1000 V