LOOP/PFC/PSC Testers
KEW 4140
• Anti-Trip Technology for complete trip free Loop testing on all RCDs rated 30mA and above.
• Dual Display allows simultaneous measurements like Loop & PFC/PSC.
• Two wire connection for Loop L-L, L-N and PSC testing is possible.
• Phase rotation, Voltage and Frequency measurements.
• Lock-down test button for 'hands free' testing with auto-start operation.
• Display and front panel keyboards with Backlight to be visible in dark places.
• Water and Dust proof (IP54)
Loop Impedance
| Function | L-PE ATT OFF | L-PE ATT ON | L-N / L-L |
|---|---|---|---|
| Rated Voltage | 230V (50/60Hz) | L-N: 230V (50/60Hz) L-L: 400V (50/60Hz) |
|
| Operating Voltage | 100 - 280V (45 - 65Hz) | 100 - 500V (45 - 65Hz) | |
| Range (Auto-Ranging) | 20/200/2000Ω | 20/200/2000Ω (L-N<20Ω) |
20Ω |
| Nominal Test Current at 0Ω External Loop: Magnitude/Duration at 230V | 20Ω: 6A/40ms 200Ω: 2A/20ms 2000Ω: 15mA/500ms |
L-N: 6A/60ms N-PE: 10mA/approx.5s |
20Ω: 6A/20ms |
| Accuracy | ±3%rdg±4dgt (*1) | ±3%rdg±6dgt (*1) | L-N: ±3%rdg±4dgt L-L: ±3%rdg±8dgt |
PFC (L-PE) / PSC (L-N / L-L) (*2)
| Function | PFC | PFC (ATT) | PSC |
|---|---|---|---|
| Rated Voltage | 230V (50/60Hz) | L-N: 230V (50/60Hz) L-L: 400V (50/60Hz) |
|
| Operating Voltage | 100 - 280V (45 - 65Hz) | 100 - 500V (45 - 65Hz) | |
| Range (Auto-Ranging) | 2000A/20kA | 2000A/20kA (L-N<20Ω) | 2000A/20kA |
| Nominal Test Current at 0Ω External Loop: Magnitude/Duration at 230V | 20Ω: 6A/40ms 200Ω: 2A/20ms 2000Ω: 15mA/500ms |
L-N: 6A/60ms N-PE: 10mA/approx.5s |
20Ω: 6A/20ms |
Phase Rotation
| Operating Voltage | 50 - 500V, 45 - 65Hz |
|---|---|
| Remarks | Correct phase sequence: displayed "1.2.3" and  markReversed phase sequence: displayed "3.2.1" and mark |
Volts
| Function | Volts | Frequency |
|---|---|---|
| Measuring range | 0 - 500V | 45 - 65Hz |
| Accuracy | ±2%rdg±4dgt | ±0.5%rdg±2dgt |
| Applicable standards | IEC 61010-1 CAT III 300V (500V L to L), IEC 61010-031, IEC 61557-1, 3, 7, 10, IEC 60529 (IP54), IEC 61326 (EMC) |
|---|---|
| Power source | 1.5V AA batteries × 6 *Use of alkaline batteries (LR6) is recommended. |
| Dimensions | 84 (L) × 184 (W) × 133 (D) mm |
| Weight | 860g (including batteries) |
| Included Accessories | Main cord (*3) Distribution board test lead (*4) 9155 (Shoulder strap) 9156 (Soft case) LR6 (Battery) × 6, Instruction manual |
(*1): Accuracy of L-N LOOP displayed on the Sub Display is synchronized with the one at L-N/L-L function.
(*2): PSC/PFC Accuracy is derived from measured loop impedance specification and measured voltage specification.
(*3): 7187A (Power cord [UK]), 7218A (Power cord [EU]), 7221A (Power cord [SA]), 7222A (Power cord [AU])
(*4): 7246 (Blue, Green, Red), 7247 (Black, Green, Red)