Mastech MS8233E User Manual
DIGIT AL MUL TIMETER
MODEL: MS8233E
Users Manual
Table of Contents
1. Introduction
2. Safety note
3. Explanation of Controls and Indicators
3-1. Product illustration
3-2. Functional push button
3-3. LCD display
4. Specification
4-1. General Specification
4-1. Electrical Specification
5. Measurement operation
5-1 DC voltage & AC voltage measurement
5-2. Resistance measurement
5-3. Diode & Continuity check
5-4. DC/AC mA measurement
5-5. DC/AC 10A measurement
5-6. Temperature measurement
5-7 Detecting AC electric field
6. Maintenance
6-1. Replacing the battery
6-2. Replacing the fuse
6-3 Replacing the Test lead
6-4. Cleaning and Decontamination
1. Introduction
This manual is used to MS8233E Digital Muti Meter only..
This Meter is a handheld and battery operated Digital Multi Meter(DMM) with
multi function. This Meter is designed to meet IEC61010-1 & CAT II 600V
over voltage category and double insulation. The meter with holster that is
giving the main body, though downsized, high resistance against the shock of a
drop.
Protection provided by the instrument will be impaired if used in a manner not
specified by the manufacturer.
This operating instruction covers information on safety and caution. Please
read relevant information carefully and observe all the warnings and note
strictly.
The DMM as general measurement tool and widely used in the school,
laboratory, factory and other social field.
2. Safety note
Warning
To avoid possible electric shock or personal injury and to avoid possible
damage to the meter or to the equipment under test, adhere to the following
rule:
Do not apply more than the rated voltage, of marked on the meter,
between the input terminal and grounding terminal..
Do not apply voltage between COM and OHM terminal, in the
resistance measuring state.
Do not measure current with test lead inserted into voltage or OHM
terminal.
Do not expose the instrument to the direct sun light, extreme
temperature and humidity or dew full.
Inspect the test lead for damaged insulation or exposed metal.
Before measuring current, check the Meter’s fuses and turn off
power to the circuit before connecting the meter to the circuit.
Disconnect circuit power and discharge all high voltage capacitors
before testing continuity, diode, resistance, capacitance or current.
Hazardous voltages in the test before measurement of what is known
voltage to determine that determine that the equipment is functioning
correctly.
Note international Electrical Symbol.
Dangerous Voltage
Ground
AC （Alternating
current）
Warning see
explain in manual
DC (Direct Current)
Double insulation
AC or DC
Fuse
This product has been tested to the requirements ofC
AN/CSA-C22.2 No. 61010-1, second edition, including
Amendment 1, or a later version of the same standard
incorporating the same level of testing requirements”.
CONFORMS TO UL STD. 61010-1,
IEC 61010-031
CERTIFIED TO CSA STD. C22.2 No. 61010-1 and
61010-031
3. Explanation of controls and indicators
3-1. Meter illustration
10
1
2
3
6
7
8
4
5
4
Fig. 1 Exterior view
-3 –
① LCD display
② “MAX” push button
③ “BACK LIGHT” push button
④ ‘HOLD” push button
⑤ “FUNC” Push button
⑥ Rotary Switch (Knob)
⑦ “V/Ω/uA/mA/℃”Input terminal
⑧ “COM” input terminal
⑨ “10A” input terminal
⑩ NCV indicator [LED]
- 4 -
3-2. Functional push button
Push button
Function
Func
“FUNC” key is the function select key that acts with trigger.
Use the key as switch of DC/AC current, Diode/Continuity
and ℃/℉.
HOLD
Press “HOLD” to enter and exit the hold mode in any mode.
That act with trigger.
MAX
This key is act with trigger. Press this key once, the
maximum value is holding (Will displays ‘MAX’ symbol in
the LCD).
After pressing the key, A/D will keep working, and the
display value are always up dated and kept the maximum
value.
NOTE: The actual gained value is not the peak value.
*
This key is used control Backlight. This key is act with
trigger. When press and hold the key over 2 sec, will enable
Backlight.
Press the key again , the backlight will disable.
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