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The most advanced, small, low-cost panel power quality monitors, analyzers from just $170
 The PM-205 is a panel-mounted instrument for power quality monitoring and analysis. The panel meter exceeds characteristics of all the competing models, yet priced modestly.
The power quality monitor works in single-, two- or three-phase (three- or four-wire) power networks through current and power transformers. The power quality analyzer is intended for high-end power monitoring in medium- and high-voltage power grids, but is also useful for factory-level monitoring of low-voltage lines. With data log of up to 800,000 events in 16 programmable channels recorded in 30msec to 1-hour intervals, the power quality monitor is perfect for acquisition of waveforms and load profiles for further analysis.
The power quality monitor measures active and reactive current, energy, voltage, frequency, power factor, phase angles, neutral current, and plenty of derivative values. Refer to the power quality analyzer's specification for the complete details. The panel meters are customized to contain only the required features and cut on the excessive training of personnel.
The power quality monitor's communication options include pulse outputs, RS-485 and RS-232, Modbus, Ethernet, GSM, PSTN modem, and manual.
OEM and licensing opportunities available
 Specs of PM-205 panel power quality monitor
Description of of PM-203 panel power quality monitor
| Phase |
1, 3 |
| Standard |
IEC |
| Current, nominal |
1, 5 |
| Current, max |
5, 10 |
| Voltage |
57-240 |
| Voltage tolerance |
+/-30% |
| Frequency |
50/60 |
| Frequency tolerance |
10% |
| Accuracy class, active |
0.1, 0.2, 0.5 |
| Accuracy class, reactive |
0.1, 0.2, 0.5 |
| Operation temperature |
-25 +60C |
| LCD viewable temperature |
-20 +60C |
| Case |
IEC |
| Case material |
ABS |
| Terminal cover |
standard |
| LCD |
graphic (128 x 64) |
| No. of buttons |
3 |
| External battery compartment |
x |
| Batteries |
1 |
| Battery shelf life |
10 |
| Control battery' condition |
2 |
| external control relay |
1 |
| Communication |
RS485 |
| Pulse output |
active |
| Tariffs |
4 |
| Seasons annually |
4 |
| Weekend days |
2 |
| Holidays annually |
Unlimited |
| Tariff zones per day |
24 |
| Slab (step) tariffs |
4 |
| Daylight savings time |
x |
| kWh |
x |
| kVArh |
x |
| kW |
x |
| kVAr |
x |
| KVA |
x |
| Export of energy |
x |
| max demand active |
x |
| max demand reactive |
x |
| Power factor |
x |
| temperature |
x |
| voltage |
x |
| frequency |
x |
| load profile active |
x |
| load profile reactive |
x |
| Under/ over voltage (UOV) |
x |
| Overload (OL) |
x |
| Overheating (OH) |
x |
| Thresholds for recording UOV, OL, OH |
x |
| Minimum duration of UOV,OL,OH to record it |
x |
| CT/PT ratio |
x |
| Allow to reset |
password+time stamp |
| event log |
500 |
| months billing data kept |
12 |
| record reprogramming and values' reset |
x |
| record all communication with the meter |
x |
| phase reversal |
x |
| swap of phases |
x |
| neutral off |
x |
| Temperature sensor |
x |
| Warranty |
4 |
Measured quantities |
Measuring path |
Max |
Min |
Error% |
| Voltage |
1N, 2N, 3N |
Yes |
Yes |
0,2% |
| Voltage |
12, 23, 31 |
Yes |
Yes |
0,2% |
| Voltage average value |
∑ |
Yes |
- |
0,2% |
| Voltage |
N-E |
Yes |
- |
0,2% |
| Current |
1, 2, 3 |
Yes |
- |
0,2% |
| Current I (bimetal - 15 min, slave pointer) |
1, 2, 3 |
Yes |
- |
0,2% |
| Current average value |
∑ |
Yes |
- |
0,2% |
| Neutral current |
N |
Yes |
- |
0,5% |
| Active power P |
1, 2, 3, ∑ |
Yes |
- |
0,2% |
| Reactive power Q |
1, 2, 3, ∑ |
Yes |
- |
0,2% |
| Apparent power S |
1, 2, 3, ∑ |
Yes |
- |
0,2% |
| Power factor PF (cos ∑ 4-quadrant display) |
1, 2, 3, ∑ |
- |
Yes |
0,5% |
| PF incoming ind. min. |
1, 2, 3 |
- |
Yes |
0,5% |
| PF incoming cap. min. |
1, 2, 3 |
- |
Yes |
0,5% |
| PF outgoing ind. min. |
1, 2, 3 |
- |
Yes |
0,5% |
| PF outgoing cap. min. |
1, 2, 3 |
- |
Yes |
0,5% |
| Frequency |
U, I |
Yes |
Yes |
0,02% |
| Temperature in case |
T°C |
|
|
4°C |
| |
|
|
|
|
| Active power incoming/outgoing (tariff high and low) |
No |
- |
- |
- |
| Reactive power incoming/outgoing (tariff high and low) |
No |
- |
- |
- |
| Reactive power inductive/capacite (tariff high and low) |
No |
- |
- |
- |
| 5 active power intervals each inc./out. (+Trend) |
No |
- |
- |
- |
| 5 reactive power intervals each inc./out. (+Trend) |
No |
- |
- |
- |
| 5 reactive power intervals each ind./cap. (+Trend) |
No |
- |
- |
- |
| 5 apparent power intervals (+Trend) |
No |
- |
- |
- |
| 9 gen. Interval average values (+Trend) |
No |
- |
- |
- |
| Voltage asymmetric |
∑ |
Yes |
|
- |
| THD voltage |
available soon |
- |
|
- |
| THD voltage |
available soon |
- |
|
- |
| THD current |
available soon |
- |
|
- |
| 2.-15. harmonic, voltage |
available soon |
- |
- |
- |
| 2.-15. harmonic, voltage |
available soon |
- |
- |
- |
| 2.-15. harmonic, current |
available soon |
- |
- |
- |
| |
|
|
|
|
| Cumulative energy GLOBAL |
|
|
|
|
| Active energy incoming/outgoing |
∑ |
|
- |
0,2% |
| Reactive energy incoming/outgoing |
∑ |
|
- |
0,2% |
| Apparent energy incoming/outgoing |
∑ |
|
- |
0,2% |
| Max. Demand Activ power |
∑ |
Yes |
- |
0,2% |
| Max. Demand Reactiv power |
∑ |
Yes |
- |
0,2% |
| Cumulative energy GLOBAL by 4 TARIFF |
|
|
|
|
| Active energy incoming/outgoing |
∑ |
- |
- |
0,2% |
| Reactive energy incoming/outgoing |
∑ |
- |
- |
0,2% |
| Cumulative energy 12 BILLING |
|
|
|
|
| Active energy incoming/outgoing |
∑ |
- |
- |
0,2% |
| Reactive energy incoming/outgoing |
∑ |
- |
- |
0,2% |
| Cumulative energy 12 BILLING by 4 TARIFF |
|
|
|
|
| Active energy incoming/outgoing |
∑ |
- |
- |
0,2% |
| Reactive energy incoming/outgoing |
∑ |
- |
- |
0,2% |
| Max. Demand Active power |
∑ |
Yes |
- |
0,2% |
| Cumulative energy HOUR CUTS by 52 hour |
|
|
|
|
| Active energy incoming/outgoing |
∑ |
- |
- |
0,2% |
| Reactive energy incoming/outgoing |
∑ |
- |
- |
0,2% |
| |
|
|
|
|
| Load Profile 2880 - 800k records |
|
|
|
|
| <Time stamp><Active>< Reactive><U1><U2><U3><F> |
|
|
|
|
| Active power P |
∑ |
|
|
|
| Reactive power Q |
∑ |
|
|
|
| Voltage |
1N, 2N, 3N |
|
|
|
| Frequency |
U |
|
|
|
| |
|
|
|
|
| Log File |
|
|
|
|
| <Stamp Time><Event Status>< Value> |
|
|
|
|
| Event status |
Value |
|
|
|
| Event Power |
On, Off |
|
|
|
| Event Flash |
Error, Read, Write |
|
|
|
| Event RTC |
Error, Ok |
|
|
|
| Event Maximum Demand Active |
|
|
|
|
| Event Maximum Demand Reactive |
|
|
|
|
| Event Correct Tariff |
|
|
|
|
| Event Correct RTC |
|
|
|
|
| Event Clear Maximum Demand |
|
|
|
|
| Event Clear Globals |
|
|
|
|
| Event Clear Billing |
|
|
|
|
| Event Clear Profile |
|
|
|
|
| Event Clear LogFile |
|
|
|
|
| Event Read Page |
|
|
|
|
| Event Write Page |
|
|
|
|
| Event Under Over Voltage |
Under, Over, Ok |
|
|
|
| Event Current Overload |
Over, Ok |
|
|
|
| Event Current Baypass |
Bypass, Ok |
|
|
|
| Event Battery 1 |
Low, Ok |
|
|
|
| Event Battery 2 |
Low, Ok |
|
|
|
| Event High Temperature |
Over, Ok |
|
|
|
| Event SessionInform |
Interfase, Access |
|
|
|
| Event PM Turn On |
Base Voltage |
|
|
|
| Event Pm Turn Off |
|
|
|
|
| Phase Off |
No, Ok |
|
|
|
| Event Neutral |
On, Off, balanse |
|
|
|
| Event Current Transformer open |
Open, Ok |
|
|
|
| Event Potential Transformer open |
Open, Ok |
|
|
|
| Event Buzzer |
On, Off |
|
|
|
| |
|
|
|
|
| Display |
Graphic LCD Display with backlight |
|
|
|
| Class |
0.5 or 0.2 |
|
|
|
| |
|
|
|
|
| RTC |
Yes |
|
|
|
| Daylight Savings |
Yes |
|
|
|
| Leap Year |
Yes |
|
|
|
| tariff |
4 tariffs, 4seasons, 1hour step, work and holiday |
|
|
|
| limit tariff |
4 tariffs, 3 step value, internal control |
|
|
|
| holiday array |
Yes |
|
|
|
| RS-485 |
internal RS-485 |
|
|
|
| Security and Password |
4 level |
|
|
|
| Protocol |
IEC62056-21 |
|
|
|
| Sound Alarm |
Buzzer |
|
|
|
| Phase Swap monitor |
Yes |
|
|
|
| Load Profile |
Yes |
|
|
|
| Event Log |
Yes |
|
|
|
| Hour Cuts |
52 Hour |
|
|
|
| Billings |
12 month |
|
|
|
| Nominal voltage |
Programmable |
|
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