Manson Engineering Industrial DPM-3321, DPM-3332 User Manual

DPM-3321

Bi-directional Digital DC Power Meter

with built-in USB data logger & adapter

External shunt model

User Manual

Bi-Directional DC Power Meter with built-in USB data logger & adapter.

The new DPM-3321 is an upgrade version of previous DPM series. It measures current in both
direction, using a battery as the reference, it measures the Charging and Discharging current.
DPM-3321 is a self contained with built in data adapter for data retrieval to PC* via USB port and
for real time monitoring.
In addition to USB, it can be connected through Bluetooth* for Bluetooth model. The new EEPROM
is increased to 3,600 sets of data.
The direction of current is with reference to the receiving end (output) typically a battery.
Current(charging) going to battery is Positive (+) and current out of battery (discharging) is
Negative(-).
The power meter is powered up by 5-60V dc from either side or an external USB power bank for
extended measured dc voltage range of 0-60V.

*Remark: PC software, driver, software and Bluetooth manual can be download from
http://www.manson.com.hk/product/dpm-3321/

Precaution

a. Do not exceed 60V DC in application of DC Meter.
b. This meter is designed and made for indoor use only.
c. Do not disassemble or attempt to repair the power meter.
d. If Start up screen does not appear, immediate remove all input and output connections power
sources.
e. Double check on the correct polarity. If either input or output connection is in wrong polarity,
there is no display on LCD.
f. Damage to the Power Meter may result if wrong polarity power is applied.
g. Do not exert pressure on the display to avoid damage to LCD display.

Controls, Indicators & terminals

FRONT

 Shunt connect flat cable with phone plug
 LCD Display: Constant displays: V, A, and W.
 Scrolling Displays: Two sets of values for most parameters, the positive value means current

going into the battery and the negative value means current coming out of

the battery .

Parameters: Time period in use, Ah (Amp Hour), WH (Watt Hour),

Vp (max voltage), Ap (max.current), Wp ( max.Watt),

Vm (min.Voltage), Negative: -Ah, -WH, -A P, -Wp back to

Time period in use.

Freeze Scrolling display: Hold and release of any scrolling display by

quick press of RESET button

.

SIDE

 Micro USB socket: Either for connection to PC for data retrieval & real time monitoring.

Or for connection to External Power source (such as 5V USB Power

Bank) to extend voltage range from 5V-60V to 0V-60V.

 Reset Switch: To s e t the data logging interval from 30 sec to 180 sec.

To clear old data.

To freeze and release rolling display 4.

Wiring Diagram

Bi-directional Connections with 5-60V DC range

Bi-directional application with external DC for 0-60V meter range

Bi-directional application connect to PC

*Remark: PC software, driver, software and Bluetooth manual can be download from
http://www.manson.com.hk/product/dpm-3321/