Amprobe DM-II-PLUS Power-Quality-Recorder - Manual (Page 11)

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Connect the cables and the clamp as shown in fig. 2. 1.
In the ANALYZER CONFIG menu, set the SYSTEM to SINGLE PHASE. 2.
Set Frequency, Current Range, Clamp type, and TV Ratio. 3.
Push ENTER to accept the changes 4.
Push CANCEL to return to the last analysis screen display. 5.
Push POWER to verify: 6.
Direction of the clamp: Active power P must be positive. If it is negative, turn the clamp a.
around.
Phase Sequence:100
b.
The value of the Pf of each phase is not lower than 0.4. If Pf is lower than 0.4, check if the c.
phase voltage is associated to the right clamp meter, (V1 is associated to clamp meter #1).
Push VOLTAGE, CURRENT, POWER, or ENERGY key for the analysis type. 7.
To interrupt the real time updating of the displayed values, push the HOLD key.
8. To record the values, see section 6.2.
three Phase four Wire System (Refer to fig.3)
 Caution: the maximum voltage between V1, V2, V3 & CoM inputs is CAt III 600 V~ phase-
phase 370 V~ phase-earth.
Connect the cables and the clamps as shown in fig.3. 1.
In the ANALYZER CONFIG menu, set the SYSTEM to 3PH4W. 2.
Set Frequency, Current Range, Clamp type, and TV Ratio. 3.
Push ENTER to accept the changes 4.
Push CANCEL to return to the last analysis screen display. 5.
Push POWER to verify: 6.
Direction of the clamp. Active power P must be positive. If it is negative, turn the clamp a.
around.
Phase Sequence:123
b.
The value of the Pf of each phase is not lower than 0.4. If Pf is lower than 0.4, check if the c.
phase voltage is associated to the right clamp meter, (V1 is associated to clamp meter #1,
V2 to clamp meter #2, and V3 to clamp meter #3).
Push VOLTAGE, CURRENT, POWER, or ENERGY key for the analysis type. 7.
8. To interrupt the real time updating of the displayed values, push the HOLD key.
9. To record the values, see section 6.
three Phase three Wire System (Refer to fig.4)
 Caution: the maximum voltage between V1, V2, V3 and CoM (V2) inputs is CAt III 600 V~
phase-phase.
NOTE: The green cable (neutral) is connected with the red cable on phase 2.
Connect the cables and the clamps as shown in fig.4. 1.
In the ANALYZER CONFIG menu, set the SYSTEM to 3PH3W. 2.
Set Frequency, Current Range, Clamp type, and TV Ratio. 3.
Push ENTER to accept the changes 4.
Push POWER to verify: 5.
Direction of the clamp. Active power P must be positive. If it is negative, turn the clamp a.
around.
The value of the Pf of each phase is not lower than 0.4. If Pf is lower than 0.4, check if the
b.
phase voltage is associated to the right clamp meter, (V12 is associated to clamp meter
#1, V32 to clamp meter #2, and V31 to clamp meter #3).