| Power Supply |
| Power supply |
Receives power via an internal communication cable |
| Power consumption |
645 mW |
| Voltage/Current Inputs |
| Port name |
Source(S) +, - / Load(L) +, - |
| Connector type |
Busbar type terminal |
Busbar 12 x 3 mm |
SEMS Bolt M5 x 10 |
| Connection with the Module1 |
|
Dedicated communication
|
Connects to the Accura 2500M or Accura 2550 modules. |
| Protocol |
Dedicated protocol of the manufacturer |
| Connector type |
RJ45 connector |
| Communication cable |
Internal communication cable |
| Display |
|
LCD
|
25.6 x 26.0 mm Customized Mono HTN LCD |
| Displays measurement information and setup items. |
| LED |
| Operation |
Flashes red when an event occurs. |
| Button |
| Function |
Used to move to the measurement screen, enter the setup mode, and change settings |
| Measurement |
|
Sampling time
|
156 µs at 50 Hz |
Generates data at 20 ms intervals by averaging 128 samples. |
| 130 µs at 60 Hz |
Generates data at 16.7 ms intervals by averaging 128 samples. |
|
Aggregation
|
Aggregates the 20 ms and 16.7 ms data over 0.2 s intervals. |
| Generates 1 s data by aggregating 0.2 s data. |
|
Voltage
|
Model |
Basic Voltage (Un) |
Measuring Range
(Accuracy Guaranteed) |
Minimum Measured Value |
|
Accura 2550DCM
|
–500V–80A |
500 Vdc |
25 – 550 Vdc |
5.0 Vdc |
| –50V–80A |
50 Vdc |
2.5 – 60 Vdc |
0.5 Vdc |
| Measurement accuracy |
±0.5 % Reading ± 0.05 % Un |
| Measurement data |
DC voltage, RMS voltage, Waveforms |
|
Current
|
Model |
Basic Current (Ib) |
Measuring Range
(Accuracy Guaranteed) |
Minimum Measured Value |
|
Accura 2550DCM
|
–500V–80A |
80 Adc
|
4 – 100 Adc
|
0.08 Adc
|
| –50V–80A |
| Measurement accuracy |
±1.0 % Reading ± 0.1 % Ib |
| Temperature drift2 |
±0.02 % Ib / °C typical |
Ambient temperature for
temperature calibration: 25°C |
| Measurement data |
DC current, RMS current, Waveforms |
|
Power
|
Measurement accuracy |
±1.5 % Reading ± 0.15 % Un*Ib |
| Measurement data |
DC power, Real power |
|
Energy
|
Measurement accuracy |
±1.5 % Reading ± 0.15 % Un*Ib |
|
Measurement data
|
DC energy measured by accumulating DC power values (Received / Delivered) |
| Real energy measured by accumulating real power values (Received / Delivered) |
| Events |
| Measurement events |
Voltage event, Current event |
|
Measured value
|
Determined using 0.2 s data. |
| DC or RMS (selectable) |
| Event type |
Off / Over / Under (default: Off) |
DO operation associated
with events |
Digital output can be configured to operate when events occur. |
| Digital Output (DO) |
| Port name |
DO, DOG |
| Connector type |
Screw-type terminal block (M2.6, bolt head Ø4.5) |
| Wire spec / Torque |
0.14 – 2.5 mm2 (26 – 14 AWG), copper / 0.45 Nm (4.6 kgf-cm, 4.0 lbf-in) |
| Output type |
Latch, Periodic Pulse |
| Minimum pulse cycle |
0.02 s |
| Minimum pulse width |
0.01 s |
| Insulation |
AC 2,500 V for 1 minute |
| Maximum rating |
DC 60 V 350 mA (max. 1 A) |
| General |
|
Weight
|
245 g |
(Excluding mounting wings) |
| 250 g |
(Including mounting wings) |
1. A total of 10 Accura 2550DCM can be connected to Accura 2500M with 5 modules per group.
2. Errors in current measurement might occur as the temperature changes according to the temperature applied for temperature calibration.
