This is a precision instrument with the advantage of being able to measure DC and AC voltage. The supplied clamps only measure AC so if you need to do AC/DC measurements you should include the HIO,3285 Clamps Notes: | Phase Color | Instrument Color | Signal | Name | | Red | Red | Phase | A | | White | Yellow | Phase | B | | Blue | Blue | Phase | C | | Grey | Grey | Neutral | D |
- Use ONLY their supplied flash cards
- If using the supplied clamps they only last 5 days on 2AA batteries
- Only use slot2 for the memory card (Slot1 is for firmware upgrades)
- Great care must be taken to NOT confuse the different voltage and current measurements. All the current clamps must be pointed in the same direction
Getting going- Press Start
- Select the Wizard
- Select the appropriate clamps and scaling for each phase. (The standard supplied clamps are RR3035A .. these DONOT do DC measurements)
- The scale factors are all left as one
- Select for the appropriate wiring configuration
- Set the appropriate frequency and voltage (Star 240V, Delta 415V etc..)
- Delta Wiring
- When a delta wired connection is made great care must be taken to get the correct orientation with the wiring in order to make the subsequent phase calculations relevant.
- Different transformers will be wired differently so care must be taken when each is wired.
- In the 'Circuit Type Selection' select '3 Phase Delta'
- Click the 'Phaser' button
- Connect the A phase and check the A phase is shown at approximately zero degrees on the diagram
- Connect each voltage and confirm they are are the following angles
- A Phase Voltage approximately 0 Degrees
- B Phase Voltage approximately 240 Degrees
- C Phase Voltage approximately 120 Degrees
- Check the manufacturers plate, on that a phase angle will be referenced. This phase angle is the angle between the voltage and the current. If the phase angle is for example 30 degrees on the phase diagram the angle of each current will be 30 degrees i.e.
- A Phase Current approximately 30 Degrees
- B Phase Voltage approximately 270 Degrees
- C Phase Voltage approximately 150 Degrees
- Setting Trigger thresholds
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