Amprobe AMB-45 User manual

INSTRUCTION MANUAL
AMB 45
COM V
1000V CAT II
AMB 45
OFF
III
600V CAT
M
V
TEST
EXIT
0
0.5
0.2
REC
M
500V
250V
1000V
INTV
STORE
ZERO
REC HOLD
/
MegaTest 1
5
2
M100
10M 20
550
M1 21G
200 500
R

amb 45
1
CONTENTS PAGE
I. SAFETY INFORMATION………………………….……….2
Environment conditions……………………………............ 2
Maintenance & Cleaning…………………………………... 2
Safety symbols………………………………………..……. 3
II. GENERAL SPECIFICATION……………….…………….. 3
III. ELECTICAL SPECIFICATION…………………………….4
IV. SYMBOL DEFINITION & BUTTON LOCATION……….. 5
V. MEASURING FUNCTION………………………………… 7
1. ACV Function……………………………………………. 7
2. DCV Function…………………………………….……… 7
3. Low Ohm Function and Continuity Function…………. 7
4. MegaOhm Function…………………………..………… 7
VI. AUTO POWER OFF……………………………………… 10
VII. BATTERY CHANGING………………………………….. 10
VIII. FUSE CHANGING……………………………………….. 10

amb 45
2
I. SAFETY INFORMATION
 Read the following safety information carefully before attempting
to operate or service the meter.
 The circuit under test must be de-energized and isolated before
connections are made except for voltage measurement.
 Circuit connections must not be touched during a test.
 After insulation test, capacitance circuits must be allowed to
discharge before disconnecting the test leads.
 To avoid damages to the instrument do not apply the signals,
which exceed the maximum limits shown in the technical
specification tables, to the meter.
 Do not use the meter or test leads if they look damaged. Use
extreme caution when working around bare conductors or bus
bars.
 Use the meter only as specified in this manual; otherwise, the
protection provided by the meter may be impaired.
 Caution when working with voltages above 60V DC or 30 V AC
RMS. Such voltages pose a shock hazard.
 Before taking resistance measurements or testing acoustic
continuity, disconnect circuit from main power supply and all loads
from the circuit.
Environment conditions:
Installation Categories III 600V
Pollution Degree 2
Altitude up to 2000 meters
Indoor use only
Relatively humidity 80% max.
Operation Temperature 0〜40℃
Maintenance & Cleaning:
Only qualified personnel should perform repairs or servicing not
covered in this manual.
Periodically wipe the case with a dry cloth. Do not use
abrasives or solvents on these instruments.

amb 45
3
Safety symbols:
Caution (Refer to this manual before using the meter)
Dangerous voltages, risk of electric shock.
Meter is protected throughout by double insulation.
When servicing, use only specified replacement parts.
Approvals: EN-61010-1 600V CAT III 1000V CATII
VDE 0413
II. GENERAL SPECIFICATION:
 Display:
70 x 46mm Big LCD Panel with 60 segments analog bar Indication.
 Over range Indication:
“OL” will be shown on the LCD Panel when out of range
measurement is made.
 Low Battery Indication:
The will be show when the battery need to be changed.
 Sampling Rate:
2.5 times/sec Digital Display; 10 times/sec Bar Graph
 Power Source:
1.5V AA size Battery X 8
 Operating Temperature and Humidity:
0℃to 40℃(32℉to 104℉), bellow 80% RH
 Storage Temperature:
-10℃to 60℃( 14℉to 140℉)
 Dimension:
230 x 116 x 62 mm ; 9 x 4.6 x 2.4 inch
 Weight:
Approx. 750g(with battery)
 Accessories:
Test Lead, Large Jaw Alligator Clips, Battery, Instruction Manual,
Carrying Case, software, RS-232 cable.

amb 45
4
III. ELECTRICAL SPECIFICATION:
 AC Voltage
Range Resolution Accuracy
600V 0.1V 1.5%rdg+5dgts
 DC Voltage
Range Resolution Accuracy
600V 0.1V 1%rdg+3dgts
 ΩOhms ( Autoranging )
Range Resolution Accuracy
400Ω0.1Ω
4000Ω1Ω1%rdg+5dgts

Continuity beeper
Range Active Protection
≦40Ω250Vrms
 MΩ( Autoranging )
Range Resolution Accuracy
4/40/400/4000MΩ( 250V)
4/40/400/4000MΩ( 500V)
4/40/400/4000MΩ( 1000V)
1KΩ3%rdg+5dgts < 2GΩ
5%rdg+5dgts < 4GΩ
Recording Length: 4000 records

amb 45
5
0
1000
0
100
600
300
100
0.2
0.5
200
400
500
2
1M
50
10M 20
5
900
700
800
5
2
K1G
M200 500
IV. Symbol Definition and Button Location
Symbol Definition:
○
1Low battery
○
2Analog bar display
○
3Data in capture memory
○
4High voltage warning
○
5Data hold
○
6Data capture mode indication
○
7Second digit display
○
8Low ohm zero function
○
9REC in process
○
10 Memory full
○
11 Analog Bar Scale
○
12 Data recording
○
13 REC interval symbol
○
14 Insulation test timer symbol
○
15 Continuity buzzer function
○
16 Measuring unit
○
17 Main digit display
○
5
○
4
○
3
○
2
○
1
○
8
○
6○
7
○
9○
10
○
11
○
12
○
13
○
14
○
15
○
16
○
17

amb 45
6
RS232 connector REC interval setup button
LCD Display ○
9Insulation timer button
REC button ○
10 Function selection dial
Data capture Button ○
11 Black terminal
AC/DC button ○
12 Red terminal
Data Hold Button ○
13 Battery Compartment Cover
TEST Button ○
14 Foldable stand
EXIT STORE
250V
45
M
1000V CAT
COM
II
V
600V CAT
OFF V
III
AMB
INTV
HOLD
M
500V
1000V
TEST REC
REC /
ZERO
1
MegaTest
RS - 232
700
300
0.2
0
0
100
200
900
1000
800
5
200
M1
0.5 500
600
100
50 M
25
400
10M 20
1GK
2
500
1
2
4
7
3
10
11
8
5
6
12
9
14
13

amb 45
7
V. MEASURING FUNCTIONS
1. ACV Function:
Turn function selector to voltage range. Connect black test lead to
Black terminal and red one to the Red terminal. Connect test lead
to the test circuit in parallel. Operator can hold the reading by
pressing the key.
2. DCV Function:
Turn function selector to voltage range. Connect black test lead to
Black terminal and red one to the Red terminal.
Press the button to change the mode form ACV to DCV
function. Connect test lead to the test circuit in parallel. One can
hold the reading by pressing the key.
3. Low Ohm Function and Continuity Function:
Turn function selector to Ohm range. Connect black test lead to
Black terminal and red one to the Red terminal. Connect test lead
to the test circuit in parallel. If the reading is less than 40 Ohm, the
continuity beeper will sound.
One may null the lead resistance (under 40 Ohm) by shorting the
test lead than press the key. When the lead resistance is
recorded a ZERO symbol will display on the LCD. Press key
again to go back to normal operation. If the lead resistance is
great than 40Ω, the error beeping will sound. Because the test
current provided by the meter could reach 200mA, do not use this
range to test electronic component like diode, transistor or fuse.
Caution: Before measuring, verify the circuit is not live by voltage
function
4. MegaOhm Function:
Turn the function selector to the desired test voltage range. The
LCD will display “----” to indicate the tester is standing by. Connect
black test lead to Black terminal and red one to the Red terminal.
Connect test lead to the test circuit in parallel. One may take the
measuring under manual power mode or power lock mode:
HOLD
ZERO
/
ZERO
/
ZERO
/
ZERO
/

amb 45
8
 Manual Mode: If the timer symbol and setup is not shown on the
center of LCD, the tester is under manual mode. Press the test
key to activate the test voltage source and the measuring will stop
after it got the first stable reading or the is pressed again
before a stable reading is reached. A periodic beeping will warn
the high voltage output. A series of beeping with shorter period
indicate the discharging in progress. When the beeper stops, the
discharge is completed. The test result will be held on the display
automatically.
 Lock Mode: Press the button to enter or exit the Power Lock
operation mode. Under this mode the timer and setup will be
shown in the center of LCD. Press the test button once to activate
the test source and the testing down counter will be shown in the
2nd digital display. A periodic beeping will warn the high voltage
output. The test process can be stop by pressing the button
again or when the testing down counter reaches zero. A series of
beeping with shorter period indicate the discharging in progress.
When the beeper stops, the discharge is completed. The test
result will be held on the display automatically.
 Caution:
Before measuring, verify the circuit is not live by voltage function.
Do not stare the test before the lead is connected to the test circuit
properly.
Do not remove the test leads from the test circuit before the
discharge process is completed.
 Setup Timer: When the function selector is under insulation
ranges, the user can setup the timer by pressing for 2
seconds. The timer setup will blink in LCD and it can be changed
by and keys. Pressing these keys one time will change
the setup by one second and pressing these keys for more than
two seconds the value will change continuously. Once the setup is
done, the user needs to press the timer again to store the value
into the memory.
TE
S
T
TE
S
T
ZERO
/HOLD

amb 45
9
 Setup REC interval: The user can setup the REC interval by
pressing . The interval setup will blink in LCD and it can be
changed by and keys. Pressing these keys one time will
change the setup by one second and pressing these keys for more
than two seconds the value will change continuously. Once the
setup is done, the user needs to press the timer again to store the
value into the memory.
 Start/Stop REC measuring DATA: When the function selector is
under voltage and low resistance ranges, the user can start the
REC function by pressing key. The REC symbol will display in
the LCD. The REC down counter will also be shown in LCD to
forecast the next data sampling time. When the second that the
recording occurs, a disk symbol will be shown to indicate this
process. When the function selector is under insulation ranges, the
user can set the REC mode only before the measuring start. If the
REC mode is set, a measuring will start the REC process
automatically.
 Data Capture Function: When the user want to store a reading
on the LCD, he can press key to enter data capture window.
The tester will automatically searched the next available capture
memory to store the reading or the user can browse up and down
by press the and keys. Once the address is chosen, the
user need to press key to store reading. The user can exit
data capture window by press key again.
 Erase Data Memory: The user can erase all the memory in the
following process. Turn the tester off. Press and hold key then
turn on the tester. will be shown to indicate the erasing is
under process. When it is done, message will be shown in
the LCD and the user can release the key.

ZERO
/
ZERO
/HOLD
REC
INTV
REC
HOLD
STORE
REC EXIT
REC

amb 45
10
VI. AUTO POWER OFF
When the tester is idle for thirty minutes, with no function selector
or button operation, it will turn itself off automatically. To turn the
tester on again, the user has to turn the function selector to “OFF”
position, then the selected function.
VII. BATTERY CHANGING
When appear on the LCD, the battery need to be replaced with
new ones. To replace the battery the user should turn the function
selector to OFF position. Then the user needs to open the battery
compartment cover with a screwdriver. Eight AA 1.5V batteries are
needed to replace the old ones. After all Batteries are changed,
put the cover back and fasten the screw.
VIII. FUSE CHANGING:
When connect the meter under Ohm rang to a source > 10V, the
protection fuse will break the circuit and new one will be needed
for replacement. To replace the fuse, user should prepare an F
0.5A 600V fuse. First, the user should turn the tester off and
remove the test leads then remove the Back Cover and Replace
the fuse.

amb 45
11
WARRANTY
Congratulations! Your new instrument has been quality crafted
according to quality standards and contains quality components and
workmanship. It has been inspected for proper operation of all of its
functions and tested by qualified factory technicians according to the
long-established standards of our company.
Your instrument has a limited warranty against defective materials
and/or workmanship for one year from the
date of purchase provided that, in the opinion of the factory, the
instrument has not been tampered with or taken apart.
Should your instrument fail due to defective materials, and/or
workmanship during this one year
period, a no charge repair or replacement will be made to the
original purchaser. Please have your dated bill of sale, which
must identify the instrument model number and serial number
and call the number listed below:
Repair Department
ATP – Amprobe, TIF, Promax
Miramar, FL
Phone: [phone]
800-327-5060
Fax: [phone]
Website: www.amprobe.com
Please obtain an RMA number before returning product for
repair.
Outside the U.S.A. the local representative will assist you. Above
limited warranty covers repair and replacement of instrument only
and no other obligation is stated or implied.

12
Miramar, FL
Phone: [phone]
Fax: [phone]
www.amprobe.com