The Martindale PSI4000 is a unique phase rotation indicator that carries out the measurement via inductive crocodile clips. This method increases the safety of the user, whilst the bright LEDs give a clear indication of either clockwise or anti-clockwise phase rotation.
The design of this phase rotation tester allows for use on both insulated or uninsulated conductors, and an "Enhanced Brightness" switch makes indication brighter in strong ambient light. A combination of both rotating LEDs and buzzer tones indicate clockwise or anti-clockwise rotation

Input Voltage: 150V-1000V 3-Phase AC.
Frequency Range: 45-65Hz
Operating Temperature & Humidity: -10 °C to 50 °C, Max. 80%RH.
Battery Current consumption: 15mA
Cable Length: Approx. 800 mm
Power Source: 1.5V X 4 (AA or LR6) alkaline batteries
Auto-Off: After 5 mins of non activity
Low Battery Warning: Power LED flashes below 4.6V DC battery voltage

4 x AA batteries, soft carry case and instruction manual

The Martindale phase sequence indicator works on a principle of static induction with voltage rating ranges between 150V and 1000V AC (phase to earth). It includes 4xAA batteries, a soft carry case and instruction manual. This indicator measures inductive crocodile clips. This method increases the safety of the user, whilst the bright LEDs give a clear indication of either clockwise or anti-clockwise phase rotation.
Supplied with
4 x AA batteries, soft carry case and instruction manual

Bright LED and buzzer indication of live phases and sequence
Class II, double insulation
High-quality colour coded clips
Input frequency ranges between 45Hz and 65Hz
Non-contact for improved safety and ease of use
Operating temperature ranges between -10°C and 50°C
Positive indication for clockwise rotation

Drives
Electrical systems
Feed motors

CE
EN 61326-1
EN 61557-1
EN61010-1
EN61557-7
CAT III 1000V, CAT IV 600V