Mikro DM36 User Manual

DIGITAL MULTI-FUNCTION METERS
DM36 / DM36V / DM36A USER'S GUIDE
Mikro logo
Measurement
and indicators
display
Up button
Fig 1: Meter layout
PRECAUTIONS
• Disconnect ALL power sources to the meter before performing installation, inspection
and maintenance.
• Please note that incorrect installation may impair the operation or even damage the me-
ter. There is no user serviceable part in the meter. Tampering with it may damage the
meter, resulting in injury and also voiding any warranty.
DISCLAIMER
• Mikro shall not be liable for errors contained herein including any incidental and/or conse-
quential damages arising from the use of this material.
• Mikro also reserves the right to vary the product from that described in this material
without prior notice.

1. GENERAL DESCRIPTION

• DM36, DM36V and DM36A are multi-function, integrated digital meters with a large, clear
LED display, complete with selection buttons.
• Measurements include voltage, current, active power, power factor & frequency.
• The meters are confi gurable for both single-phase and three-phase applications.
• Both DM36 and DM36V are self-powered and no auxiliary power is required.
• Using these meters, applications using multiple conventional analogue meters, indica-
tors and selector switches may be simplifi ed to just a single meter.

2. MODELS

DM36
Phase voltage √
Line voltage √
Line current √
Neutral current (Computed current) √
Active power √
True power factor √
Displacement power factor √
Total power factor √
Frequency √
Table 1: Model information

3. CONTENT OF BOX

Upon opening this box, you should fi nd the following items as shown in Table 2:
Item
1 DM36 / DM36V / DM36A digital multi-function meter
Model
2 Retainer clip
3 This user guide
Table 2: Packing parts list

4. DIMENSION

Down button
96 mm
Fig 2: Dimensions of meter

5. INSTALLATION GUIDE

• Cut a square hole on the panel. The recommended hole size is 91 x 91 mm.
• Insert the meter through the pre-cut hole.
• Slide the retainer clips along any two guide slots located at the four corners of the meter
until the meter is tightly secured on the panel.
• The retainer clips can be removed by lifting the tab lightly at the handle end and pulling
it backward.
Panel
Cut-out
91 mm
DM36V DM36A
Fig 3: Recommended dimensions of the panel cut-out hole and method for retainer clip
installation
√ ---
√ ---

6. WIRING GUIDE

--- √
• Connect the metering voltage inputs and current inputs according to the wiring schemes
shown in Fig 4 ~ Fig 9.
--- √
• The recommended wire size for voltage inputs is AWG16~22.
--- ---
• The recommended wire size for current inputs is AWG12~18.
--- ---
NOTE:
--- ---
• The polarity marks for the CT (S1 and S2) must be adhered to as shown in the respec-
--- ---
tive fi gures.
• Please make sure the current transformer (CT) input is shunted. Under no circum-
√ √
stances shall the CT connection be left open-circuited. Use a CT shorting block if
necessary.
Description Quantity
1
2
1
7 mm 48 mm
Guide
Retainer
Clip
Retainer
Clip

6.1 DM36 CONNECTION DIAGRAM

L1 L2 L3 Ln L N
DM36
1
S1
I1
2
S2
3
S1
I2
4
S2
5
S1
I3
6
S2
GND
7
L1
9
L2
11
L3
13
Ln
LOAD LOAD
Fig 4: DM36 three-phase measurement Fig 5: DM36 single-phase measurement
connection diagram.
connection diagram.

6.2 DM36V CONNECTION DIAGRAM

L1 L2 L3 Ln L N
DM36V
7
L1
9
L2
11
L3
13
Ln
LOAD LOAD
Fig 6: DM36V three-phase voltage Fig 7: DM36V single-phase voltage
measurement connection diagram. measurement connection diagram.

6.3 DM36A CONNECTION DIAGRAM

L1 L2 L3 Ln L N
DM36A
1
S1
I1
2
S2
3
S1
I2
4
S2
5
S1
I3
6
S2
GND
11
L
AUX
13
N
LOAD LOAD
Fig 8: DM36A three-phase current Fig 9: DM36A single-phase current
measurement connection diagram.
measurement connection diagram.
DM36
1
S1
I1
2
S2
GND
7
L
13
N
DM36V
7
L
13
N
DM36A
1
S1
I1
2
S2
GND
11
L
AUX
13
N