The SEW 890PR Non-Contact Three Phase Sequence and Rotation Tester has the ability to measure without contacting any live parts. The user simply clamps the three clamps onto each cable over the insulation and reads the status by way of the adjustable intensity LED’s, allowing either indoor or outdoor use. On switch on the SEW 890PR will perform an LED status test to ensure all LED’s are functioning correctly before use and it will power off after 5 minutes if not connected to a live circuit.
Once the SEW 890PR’s clamps are connected to the corresponding cables, the SEW 890PR will automatically display the presence of three phases on the three “power on” LED’s and will also display the direction of phase rotation with a clockwise or counterclockwise LED and a phase rotation map, showing the phase sequence.
An audible buzzer signals the user with an intermittent tone for clockwise rotation, and a continuous tone for counterclockwise (incorrect) rotation. The SEW 890PR has four built in magnets, located on the rear of the instrument to allow for it to be held on a metal surface (switchboard door etc.)to enable handsfree use.
SEW 890PR Non-Contact Three Phase Sequence and Rotation Tester Specifications:
|Measurement principle||Static induction|
|Auto-off||5 min. after power on without detection|
|Low battery warning||Power LED flashes at 4.6±0.1V or less|
| Operating temperature
|0°C ~ 40°C Max. 80% R.H.|
| Storage temperature
|-10°C ~ 50°C Max. 80% R.H.|
|Cable length||Approx. 800mm|
|Dimensions||115(L) × 65(W) × 40(D)mm|
|Power source||1.5V (AA) × 4 Alkaline batteries|
|Safety standard||EN 61010-1 CAT III 1000V / CAT IV 600V
EN 61557-1 EN 61557-7