Full installation verification, also in isolated IT networks
MPI-530-IT
Multifunction electrical installation meters
MPI-530-IT
Multifunction meter for IT networks
| C/ María Barbeito, 14 | Contact Contact T [+34] 982 20 99 20 |
|---|---|
| 27003, Lugo, Spain | T [+34] 982 20 99 20 info@amperis.com | www.amperis.com |
Loop, RCD, insulation, earth and continuity measurements, with RCD testing in IT systems.
A multifunction meter prepared for IT systems
The MPI-530-IT performs every verification measurement of an electrical installation and adds a distinctive capability: it tests general and selective RCDs from 10 to 1000 mA also in isolated IT networks, the earthing systems used where supply continuity is critical, such as hospital operating theatres, mines and certain industrial plants.
All the measurements of the family
Fault loop impedance is measured with 23 A (44 A phase-to-phase) in the 95…440 V range with 0.01 Ω resolution, or with 15 mA in RCD circuits without tripping. Insulation reaches 10 GΩ with test voltages of 50 to 1000 V and the AutoISO-1000C adapter, earth is measured by four methods plus Wenner soil resistivity, PE continuity uses ±200 mA in both directions and a probe measures light intensity; the recorder logs harmonics up to the 40th and THD.
Main features
- RCD testing of 10 to 1000 mA also in isolated IT systems.
- Fault loop with 23 A (44 A phase-to-phase) and 0.01 Ω resolution.
- Insulation up to 10 GΩ at 50 to 1000 V; AutoISO-1000C adapter.
- Earth by four methods and Wenner soil resistivity.
- Bidirectional PE continuity with ±200 mA and quick PE check.
- Tree memory with USB 2.0 and Bluetooth communication.
Applications and design
Applications
- Verification of installations with IT earthing systems: hospitals, mining, industry.
- Electric shock protection measurements to IEC 61557 in LV installations.
- RCD testing, PE continuity and earth resistance surveys.
- Basic mains diagnostics with harmonics, THD and phase sequence.
Robust and autonomous design
With its IP54 housing, CAT IV 300 V category, 288 × 223 × 75 mm case and roughly 2.5 kg, the MPI-530-IT works from 0 to +50 °C powered by five LR14 cells or a 4.8 V 4.2 Ah NiMH battery, charged from the mains or a 12 V car socket.
The measurements downloaded from the meter become complete verification protocols of the installation.
Software & applications
Reading the tree memory
The free PC reading software empties the tree memory of the MPI-530-IT — clients, objects and measuring points — through the USB 2.0 port or the Bluetooth link, shows every result on screen and prints it or exports it to popular formats on any Windows computer.
Documentation software
A documentation package turns the downloaded data into complete verification reports: it manages inspectors, owners of the installation, test points and fuses, attaches the measurements to each circuit and produces the protocol of the acceptance or periodic test, ready to print or to save as a PDF file.
What the software provides
- Free reading software plus a report generation package.
Preview of a verification report of the installation, ready to print or export
- Database of clients, objects, inspectors and test points.
- Verification protocols ready to print or export to PDF.
- Works with the results of all the meter functions.
| MPI-530-IT — TECHNICAL SPECIFICATIONS | |
|---|---|
| Standards | IEC 61557; RCD testing also in IT systems |
| IT networks | Loop and RCD measurements in isolated systems |
| Fault loop | Z L-PE, L-N, L-L: 0.13…1999.9 Ω; 23 A (44 A ph-ph) |
| Loop with RCD | Without tripping: 0.50…1999 Ω with 15 mA |
| RCD testing | General and selective; 10…1000 mA; tA and IA |
| Insulation | 50/100/250/500/1000 V; up to 10 GΩ; AutoISO-1000C |
| Continuity | PE and bondings with ±200 mA; 0.12…400 Ω |
| Earth | 3p, 4p, 3p+clamp and 2 clamps; Wenner resistivity |
| Light intensity | With external probe; reading in lx or fc |
| Recorder | U up to 500 V; harmonics to 40th; THD |
| Memory | 6000 cells and 10 000 records; tree structure |
| Communication | USB 2.0 and Bluetooth |
| Power supply | 5 × LR14 cells or NiMH 4.8 V 4.2 Ah; charger |
| Measuring category | CAT IV 300 V / CAT III 600 V; IP54 |
| Operating temperature | 0…+50 °C |
| Dimensions and weight | 288 × 223 × 75 mm; approx. 2.5 kg |
MPI-530-IT — MEASUREMENT DATA (1/2)
Electrical installation measurements
| Measurement function | Measuring range | Display range | Resolution | Accuracy |
|---|---|---|---|---|
| Fault loop impedance Z, Z, Z | ||||
| ZL-PE, ZL-N, ZL-L Z RCD (without tripping the RCD) | 0.13 Ω…1999.9 Ω (IEC 61557) | 0.000 Ω…1999.9 Ω | from 0.001 Ω | from ±(5% m.v. + 0.03 Ω) |
| ZL-PE RCD (without tripping the RCD) | from 0.50 Ω…1999 Ω (IEC 61557) | 0.00 Ω…1999 Ω | from 0.01 Ω | from ±(6% m.v. + 5 digits) |
| RCD parameters — tA at 0.5 / 1 / 2 / 5 IΔn; IA at 0.2…2.0 t — general and short-time delay RCDs (TN/TT) | 0 IΔn | |||
| tA — general and short-time delay RCDs (TN/TT) | 0 ms…300 ms | 0 ms…300 ms | 1 ms | ±(2% m.v. + 2 digits) |
| tA — general and short-time delay RCDs (IT mains) | 0 ms…400 ms | 0 ms…400 ms | 1 ms | ±(2% m.v. + 2 digits) |
| tA — selective RCDs | 0 ms…500 ms | 0 ms…500 ms | 1 ms | ±(2% m.v. + 2 digits) |
| IA — sinusoidal residual current (type AC) | 3.3 mA…1000 mA | 3.3 mA…1000 mA | from 0.1 mA | ±5% IΔn |
| IA — unidirectional current, also with 6 mA DC bias (type A) | 3.5 mA…700 mA | 3.5 mA…700 mA | from 0.1 mA | ±10% IΔn |
| IA — direct residual current (type B) | 2.0 mA…1000 mA | 2.0 mA…1000 mA | from 0.1 mA | ±10% IΔn |
| Earth resistance and soil resistivity | ||||
| 3- and 4-pole method | from 0.50 Ω…1.99 kΩ (IEC 61557-5) | 0.00 Ω…1.99 kΩ | from 0.01 Ω | from ±(2% m.v. + 3 digits) |
| 3-pole + clamp method | 0.00 Ω…1.99 kΩ | 0.00 Ω…1.99 kΩ | from 0.01 Ω | ±(8% m.v. + 4 digits) |
| 2-clamp method | 0.00 Ω…99.9 kΩ | 0.00 Ω…99.9 kΩ | from 0.01 Ω | from ±(10% m.v. + 4 digits) |
| Soil resistivity | 0.0 Ωm…99.9 kΩm | 0.0 Ωm…99.9 kΩm | from 0.1 Ωm | depends on the accuracy of the RE measurement |
| Insulation resistance | ||||
| UISO = 50 V | 50 kΩ…250 MΩ (IEC 61557-2) | 0 kΩ…250 MΩ | from 1 kΩ | from ±(3% m.v. + 8 digits) |
| UISO = 100 V | 100 kΩ…500 MΩ (IEC 61557-2) | 0 kΩ…500 MΩ | from 1 kΩ | from ±(3% m.v. + 8 digits) |
| UISO = 250 V | 250 kΩ…999 MΩ (IEC 61557-2) | 0 kΩ…999 MΩ | from 1 kΩ | from ±(3% m.v. + 8 digits) |
| UISO = 500 V | 500 kΩ…2.00 GΩ (IEC 61557-2) | 0 kΩ…2.00 GΩ | from 1 kΩ | from ±(3% m.v. + 8 digits) |
| UISO = 1000 V | 1000 kΩ…9.99 GΩ (IEC 61557-2) | 0 kΩ…9.99 GΩ | from 1 kΩ | from ±(3% m.v. + 8 digits) |
"m.v." – measured value.
MPI-530-IT — MEASUREMENT DATA (2/2)
Electrical installation measurements (continued)
| Measurement function | Measuring range | Display range | Resolution | Accuracy |
|---|---|---|---|---|
| Continuity of protective conductors and e | equipotential bondings | |||
| With ±200 mA test current | 0.12 Ω…400 Ω (IEC 61557-4) | 0.00 Ω…400 Ω | from 0.01 Ω | ±(2% m.v. + 3 digits) |
| Low-current measurement | 0.0 Ω…1999 Ω | 0.0 Ω…1999 Ω | 0.1 Ω | ±(3% m.v. + 3 digits) |
| Light intensity | ||||
| In lux (lx) | 0 lx…399.9 klx | 0 lx…399.9 klx | from 0.001 lx | from ±(2% m.v. + 5 digits) |
| In foot-candles (fc) | 0 fc…39.99 kfc | 0 fc…39.99 kfc | from 0.001 fc | from ±(2% m.v. + 5 digits) |
Phase sequence indication: same direction (correct) / opposite direction (incorrect); UL-L 95…500 V, 45…65 Hz.
Single-phase power quality recorder
| Parameter | Measuring range | Max. resolution | Accuracy |
|---|---|---|---|
| Alternating voltage (TRMS) | 0.0…500 V | 0.1 V | from ±(2% m.v. + 2 digits) |
| Alternating current (TRMS) | depending on the clamp* | 0.1 mA | from ±(5% m.v. + 3 digits) |
| Frequency | 45.0…65.0 Hz | 0.1 Hz | ±(0.1% m.v. + 1 digit) |
| Active, reactive, apparent and distortion power | 0…1.5 MW / Mvar / MVA | 1 W / var / VA | from ±(7% m.v. + 3 digits) |
| cosφ and power factor (PF) | 0.00…1.00 | 0.01 | unspecified |
| Voltage harmonics | 0.0…500 V | 0.1 V | from ±(5% m.v. + 3 digits) |
| Current harmonics | depending on the clamp* | as for current (TRMS) | from ±(5% m.v. + 3 digits) |
| THD of voltage and current | 0.0…999.9% (relative to the fundamental) | 0.1% | ±5% |
* F-1A, F-2A, F-3A clamps: 0…3000 A AC (10 000 Ap-p); C-3: 0…1000 A AC (3600 Ap-p); C-6A: 0…12 A AC (36 Ap-p). The current accuracy does not include the clamp error. Recorder for 110/190 V…240/415 V single-phase mains, 50/60 Hz.
"m.v." – measured value.