Prokit's Industries MT-4025 User Manual

MT-4025 DC Voltage / Current Datalogger

User’s Manual

st

Edition, 2011

1

©2011 Copy Right by Prokit’s Industries Co., Ltd.

Introduction:

The MT-4025 DC Voltage / Current Datalogger is a recorder unit
comes with USB connector & window software for easy
measured data monitoring and recording by your computer

Accessory:

Hanger x 1 set
Voltage /current connecting wire x 2pcs)
User’s manual x 1pcs
Record Monitor software CD x 1pcs
USB transmit cable x 1pcs

Warning

!

T

o avoid electrical shock or personal injury, follow these
guidelines:
 Before using the recorder inspect the case. Do not use the

recorder if it appears damaged. Look for cracks or missing
plastic. Pay particular attention to the insulation around the
connectors.

 Disconnect the connecting wire from the recorder before

opening the case.

 Be careful use at any circuit, hide high voltage and current in

circuit may cause strong electric shock and health to be
injured.

 Don't exceed recorder specification max input voltage or

current value.

 When the case of the recorder is opened, make sure not to

use the recorder.

 In front of measuring the voltage or the current, should be first

to correct insert the connecting wire the input of the recorder.

 When using MT-4025 voltage / current recorder measure

voltage & current at the same time, both black leads must
connect to negative input terminal together. (Refer Fig. 1)

1

Reference Fig 1.

（Fig 1）



While using the recorder, please don't input voltage to the
current input terminal as current input terminal only comes
with low loop impedance, although it is protected by fuses but
an excessive instantaneous current probably will damage the
recorder or injury to the user

 Do not operate the recorder around explosive gas, vapor, or

dust.

 Do not use the recorder if it operates abnormally. Protection

may be impaired. When in doubt, have the recorder serviced.

Caution

!

A Caution identifies conditions and actions that may damage the
recorder or the equipment under test.

Use the proper function, and range for your recorder.


 Do not attempt to recharge the batteries.
 To prevent explosion, do not throw batteries into a fire.
 Follow local laws or regulations when disposing of batteries
 Match the + and - polarities of the battery with the battery

case.

2

Parts:

⑥

⑦

⑧

⑨

⑩

Display ⑥ Bottom cover

①

Reset button ⑦ Screw hole

②

Power button & function

③

⑧ CR2032 battery seat

button
DC 20V input ⑨ CR2032 battery(Not

④

included)

DC 200mA input ⑩ 500mA fuse

⑤

Display Elements:

①
②

Intv

③

CH1

④

CH2

① Batteries power indication. ⑥ Indicate main display to

Full

Yea r h: m:d

⑤⑥⑦⑧

⑨

V

⑩

mA

show year of the perpetual
calendar.

② Interval symbol of

measure record.

⑦ Indicate main display to

show hour: minute of the
perpetual calendar.

3

③ Main display ⑧ Indicate main display to

show month: date of the
perpetual calendar.

④ Indicate main display is

⑨ Voltage unit.

CH1 or CH2 input.

⑤ Indicate memory has

⑩ Current unit.

been already full, stop
recording. Or indicate that
is inquiring percentage of
the memory has already
been used.

Battery power indicator and replacement:

 The power of the battery indicated by the battery symbol

( )

 When the symbol ( ) display, the battery power is low,

please turn off the power and change CR2032 battery, in
order to keep measuring accuracy.

 When battery power is lower than maintaining recorder

normal operation, will shut-down automatically, until battery
change, could start the recorder again and normal operation

 While changing the battery, use a cross screwdriver to open

the bottom cover, change CR2032 battery from battery seat,
please pay attention to the battery seat and polarity of
CR2032 battery while changing, don’t mistaken.

 When the recorder is not used for a long time, please take out

the battery, prevent depositing in the high temperature, high
wet place.



While changing battery, recorder will reset and enter
perpetual calendar set up function, if recorder is unable to
produce reset automatically, and unable normal operation,
please press Reset key with a screwdriver, let recorder
produce Reset and enter the perpetual calendar to set up
function.

4

Operation:

Set up function procedure:

recorder, can also set up on- line through Record Monitor S software

(please consult Record Monitor S software manual).

As below shows in order to operate on

5