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Powdatest


Powdatest & Probe Assembly Measures 0-100kV Positive or negative charge.
Very Accurate Measures to 0.1kV.
Safe Easy To Use Probe Can be easily placed onto the corona tip.
Hand Held Portable With Large Digital Display.
Measures Work Piece Current with adaptor cable.
Quickly Checks Gun Performance on single and multi-gun systems.

With the New Powdatest any electrostatic sprayer can now quickly measure the electrostatic voltage at the spray gun tip. This corona point is where the electrostatic voltage must be maintained at the correct voltage. This voltage can be up to 100,000 volts and can be either positive or negative charged. Using the Powdatest will allow this actual gun voltage to be quickly and accurately measured. The Powdatest is a simple, easy to use, very accurate hand held instrument which has a safe measuring probe which can be easily placed on the gun tip. Instant digital display with resolution to 0.1kV of the actual gun voltage is then obtained. The Powdatest can be used to check and allow calibration of existing console displays, and also can be used to trace faults such as poor high voltage cable connections, cable breakages, dirt, grease etc., on the gun body which could affect the actual gun voltage but not be shown on the console displays. Ideal for quickly testing guns after reassembly and multiple gun systems.
Workpiece current in the range of 0.1 -199.9 micro amp. can be measured using the adaptor and cable supplied as an accessory. This can be used by the operator to detect the amount of powder application before back ionization occurs. A current adaptor and cable is available as an optional accessory.
Supplied complete with high voltage probe, 5 meters earth cable, battery fitted, instrument and probe carrying cases.
The current emphasis in the Powder Coating Field is to ensure that the efficiency of the electrostatic powder painting process is maintained at as high a level as possible and by using the New Powdatest as part of a Quality Control System will allow its low initial cost to be recovered many times over.

 

Voltage Measurement

1. Connect the earth cable to the threaded BNC connector on the Powdatest.
2. Connect the Powdatest probe via the connecting cable to the other connector on the Powdatest.
3. Ensure that the earth lead is securely connected to a Good Earth connection.
4. Switch the Powdatest on by depressing the ON keypad. The display will register 00.0kV.
5. Holding the probe handle only, place the tip of the probe onto the high voltage to be measured.

The Powdatest will display the voltage being measured together with its polarity, i.e. if the display registers -46.6 the voltage has a negative charge polarity and is 46.6 kilo volt. If the display registers 46.6 then the charge polarity is positive and is 46.6 kilo volt. (Allow approximately five seconds for display to settle, this delay has been incorporated to give stable measurements even in electrically noisy environments).

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Information

1. To obtain the electrostatic gun potential depress the Gun on switch without powder.
2. Always keep the probe glass surface clean as dirt or other contaminates could affect the measurement accuracy. To clean the glass: use a small amount of methylated spirit on a clean duster. Do not use any other type of cleaning agent. Place the probe in its case immediately after use.
3. To switch the Powdatest off depress the OFF keypad.

 

Battery Replacement

When the battery requires replacing there will be a LO BATT symbol on the display. To replace, remove battery cover by depressing and sliding cover off. Replace with PP3 type battery ensuring correct polarity. An alkaline leak proof battery is preferable.

 

Powdatest Current Adaptor

Powdatest Current Adapter This Current Adaptor will connect directly to the Powdatest and allow DC Currents to be measured in the range of 0.1 to 199.9 micro amp. The Current Adaptor is supplied complete with a BNC to Croc Clip lead to allow series current measurement.
Powdatest Current Adaptor
Connect the Current Adaptor BNC plug to the Powdatest top right hand BNC socket.
Connect the current cable BNC plug to the BNC socket on the Current Adaptor.
Connect the Black Croc Clip to a good earth connection.
Connect the Red Croc Clip to the Object. (Note: Ensure that the Object is not connected to the Earth directly only via the Powdatest in series).
Switch the Powdatest on.
Commence spraying to the Object.
The Powdatest will now measure the current between the Object and Earth. Note: The Powdatest display will be scaled with this Current Adaptor from 0.1 micro amp. to 199.9 micro amp. Ignore the displayed kV annunciators.

 

Specification

The accuracy of current measurement is:

Current Adaptor set up on individual Powdatest Accuracy better than ±1% ± 1 micro amp.
Current adaptor supplied individually Accuracy better than ± 2% ± 2 micro amp.

 

Available items
Item Number Item
SQ-5003 Powdatest Meter and Probe Assembly
SQ-5015 Cable & Adaptor for 2000 nA +

 

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