APPA VTA True RMS Electrical Tester User Manual

VTA True RMS Electrical Tester
User Manual

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Safety Information

Understand and follow operating instructions carefully.
WARNING

• If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.
• Always use proper terminals, switch position, and range for measurements.
• To reduce the risk of fire or electric shock, do not use this product around explosive gas or in damp locations.
• Verify the Meter operation by measuring a known voltage. If in doubt, have the Meter serviced.
• Do not apply more than the rated voltage, as marked on Meter, between terminals or between any terminal and earth ground.
• Avoid working alone so assistance can be rendered.
• Do not use the Tester if the Tester is not operating properly or if it is wet.
• Individual protective device must be used if hazardous live parts in the installation where the measurement is to be carried out could be accessible.
• Use caution with voltages above 30 Vac rms, 42 Vac peak, or 60 Vdc. These voltages pose a shock hazard.
• DO NOT USE the test leads when the internal white insulation layer is exposed.
• DO NOT USE the test leads above maximum ratings of CAT. environment, voltage and current, that are indicated on the probe and the probe tip guard cap.
• DO NOT USE the test leads without the probe tip guard cap in CAT III and CAT IV environments.
• Probe assemblies to be used for MAINS measurements shall be RATED as appropriate for MEASUREMENT CATEGORY III or IV according to IEC 61010-031 and shall have a voltage RATING of at least the voltage of the circuit to be measured.
• Disconnect circuit power and discharge all high voltage capacitors before testing resistance, continuity.

Symbols as marked on the Meter and Instruction manual

| Risk of electric shock
---|---
| See instruction manual
| DC measurement
| AC measurement
| Both direct and alternating current
| Equipment protected by double or reinforced insulation
| Battery
| Earth
| Conforms to EU directives
| Application around and removal from hazardous live conductors is permitted
| Do not discard this product or throw away.

Maintenance

Do not attempt to repair this Meter. It contains no user serviceable parts. Repair or servicing should only be performed by qualified personnel.
Cleaning
Periodically wipe the case with a dry cloth and detergent.
Do not use abrasives or solvents.
Making Basic Measurements
Preparation and Caution Before Measurement Observe the rules of Warnings and Cautions.
CAUTION

• When connecting the test leads to the DUT (Device Under Test) connect the common test leads before connecting the live test leads ; when removing the test leads, remove the live test leads before removing the common test leads.
• Make sure that the buzzer sound is perceptible before using it under high background noise environment.

Voltage Measurement

Voltage/Continuity/Single Pole Mode

LED indicates measured voltage is high than ELV limit (50VAC and/or 120VDC).
Warning

• When batteries are not fitted or are exhausted, the tester still work when measuring> 45VAC and/or >35VDC.
• Timing Rating (tr): 30 seconds, Recovery Time (rt): 240seconds,when measuring >300V, recovery time is necessary.
• L/R LED may light up when measuring AC voltage.
• Due to the high internal resistance, capacitive and inductive Voltage (ghost voltage) may be indicated.

Phase Rotation Test

• Clockwise Phase Sequence L1-L2-L3(Right)
• Counterclockwise Phase Sequence L1-L3-L2(Left)

Warning
Phase Rotation Test works only on 3 phase 4 wire system. The result is unreliable on other systems.
Note
It is necessary to check the result by test with reverse sequence.

Single Pole Phase Check

Warning

• Single Pole Check is available for both test leads. Remove one of test leads before performing check.
• Do not check if voltage appears by Single Pole Phase Check. Measure voltage with two pole to get a reliable result.

Continuity Check

Resistor Mode

Ampere Mode

Warning
The barrier on the body is indicating the limit of safe access of the hand- held part, do not hold over the barrier when in normal use.
Warning
Do not assemble test lead at the back of the meter while measuring current.

Using the Function

HOLD

Enable/Disable ELV Warning Voice

Turn the meter OFF
Press Ω/A button and “HOLD” button at the same time.

Torch

Self-Diagnostic Test

Warning
Do not use the tester when abnormality is found in self-diagnostic test.
Function Button

Battery Replacement

Warning

• To avoid false readings that can lead to electric shock and injury, replace the battery as soon as low battery indicator blinks.
• Remove test lead from Meter before opening the battery door or Meter case.

Probe Usage

Warning
When using test leads or probes, keep your fingers behind the finger guards.

Warning

• For CAT III or CAT IV environments, use the test leads with the probe tip guard cap fixed firmly. Without the probe tip guard cap, the test leads can be used in CAT II environment ONLY.
• Make sure test leads are firmly connected to instrument and other accessories.

Test lead assembly

Wa r ning
Do not assemble test lead at the back of the meter while measuring current.
Storage

For most application except ampere measurement. For 19mm power socket

Specifications

1-1 General Specifications
Display Count: 10000 counts.
Overrange Display: ”OL” or “-OL”
Conversion Rate: 3 times/second
Dimensions (W x H x D): 57 x 220 x 35 mm
Weight: 200g
Power Requirements: AAA Size Batteryx2(R03, LR03, 24D, 24A)
Battery Life: About 1000 operations. (based on  Alkaline batteries, 30 sec. ON, 240 sec. OFF)
Maximum Conductor Size: 16mm
Safety Standard Compliance:
IEC / EN 61010-1, IEC / EN 61010-2-032,
IEC / EN 61010-2-033,
IEC / EN 61010-031 for CAT IV 600V, CATIII 1000V
IEC / EN 61326-1 IEC / EN 61243-3

1-2 Environmental Conditions

Indoor / Outdoor Use
Pollution Degree: 2
Maximum Operating Altitude: 2000m (6562ft)
Operating Temperature & Relative Humidity:
-15°C ~ 30°C, ≤ 80%RH
30°C ~ 40°C, ≤ 75%RH
40°C ~ 55°C, ≤ 45%RH
Storage Temperature: -20 to +60°C, 0 to 80% RH (no batteries)
Temperature Coefficient: 0.2 x (Specified accuracy) / °C, < 18°C, > 28°C
IP Rating: IP65
Vibration: Random Vibration per MIL-PRF-28800F Class 2
Drop Protection: 4 feet drop to hardwood on concrete floor

1-3 Electrical Specifications
Accuracy is given as ± (% of reading + counts of least significant digit) at 23°C ± 5°C, with relative humidity Less than 80% R.H., and is specified for 1 year after calibration.

• Condition of Auto Power On:
  With batteries fitted:
  – > 3.0V or < -8.0V between L2 and L1
  – Detect AC signal by Single Pole
  – Continuity
  Without batteries:

  | ±35.0V DC | or > 45.0V AC between L2 and L1

• Auto Power Off:
  The Meter automatically turns off if one of the following conditions are met for about 10 seconds
  – The Auto Power On condition is not met.
  – Both buttons are not pressed.
  The Meter automatically turns off if one of the following conditions are met for about 30 seconds
  – The resistance is OL when the Meter is in Resistor mode.
  – The current is < 1.0A when the Meter is in Ampere mode
  • For > 300V, Time rating (tr): 30 seconds;
  Recovery time (rt): 240 seconds
  • AC Function
  – ACV and ACA specifications are ac coupled, true RMS.
  – For non-sinusoidal waveforms, Additional Accuracy by Crest Factor (C.F.):
  Add 1.0% for C.F. 1.0 ~ 2.0
  Add 2.5% for C.F. 2.0 ~ 2.5
  Add 4.0% for C.F. 2.5 ~ 3.0
  – Max. Crest Factor of Input Signal:
  3.0 @ 5000 counts
  1.5 @ 10000 counts

• DC Voltage**
  | Range| Resolution| Accuracy**
  ---|---|---|---
  With batteries| 7.0V to 999.9V| 0.1V| ±(1.0% + 2D)
  Without batteries(1)| 35V to 999.9V| 0.1V

(1) Measurement without batteries is only available for < 35°C,> -15°C. The meter will show “bAtt” and ELV LED when measurement is not available.
Max. Input Current: < 3.5mA @ 1000V
Overload Protection: AC/DC 1000V

• AC Voltage**
  | Range| Resolution| Accuracy**
  ---|---|---|---
  With batteries| 6.0V(1) to 999.9V| 0.1V| ±(1.5% + 5D)
  Without batteries(1)| 45V to 999.9V| 0.1V

(1) For > 65Hz, the minimum range is 8.0V.
(2) Measurement without batteries is only available for < 35°C,> -15°C. The meter will show “bAtt” and ELV LED when measurement is not available
Frequency Response: 45Hz to 400Hz
Max. Input Current: < 3.5mA @ 1000V
Overload Protection: AC/DC 1000V

• Resistor**
  Range| Resolution| Accuracy**
  ---|---|---
  9999Ω| 1Ω| ±(1.5% + 5D)
  50.00kΩ| 0.01kΩ

Output Voltage: about 0.5V
Overload Protection: AC/DC 1000V

• Continuity
  Continuity: The built-in buzzer sounds in the case of measuring resistance less than 1.8kΩ and may be up to 2.7kΩ. LED RX shows at the same time.
  Continuity Indicator: 2.7kHz Tone Buzzer and RX LED
  Response Time of Buzzer: < 100 msec.
  Output Voltage: about 0.5V
  Overload Protection: AC/DC 1000V

• AC Ampere**
  Range| Resolution| Accuracy**
  ---|---|---
  200.0A| 0.1A| ±(3.0% + 5D)

Frequency Response: 45Hz to 65Hz
Overload Protection: AC/DC 200A

• Rotary Field Indication
  For 3 phase 4 wire system only
  Sensitivity: 90V to 1000V (Phase-to-ground)
  Frequency Range: 45Hz to 65Hz
  “L” LED is on when the signal of L2 probe lead the signal of L1 probe; “R” LED is on when the signal of L1 probe lead the signal L2 probe.

• Single-Pole Phase Check
  Sensitivity: 90V to 1000V (Phase-to-ground)
  Frequency Range: 45Hz to 65Hz
  Indicator: 2.7kHz Tone Buzzer and ELV LED

SAFETY ADVICES

Depending on the internal impedance of this meter there will be a different capability of indicating the presence or absence of operating voltage in case of the presence of interference voltage.
When in contact with the parts to be tested, this meter may discharge temporarily the interference voltage to a level below the ELV, but it will be back to the original value when this meter is removed.
When the indication “voltage present” does not appear, it is highly recommended installing earthing equipment before work.
When the indication “voltage present” appears on a part that is expected to be disconnected of the installation, it is highly recommended confirming by another means (e.g. use of an adequate voltage detector, visual check of the disconnecting point of the electric circuit, etc.) that there is no operating voltage on the part to be tested and to conclude that the voltage indicated by this meter is an interference voltage.

Limited Warranty

This meter is warranted to the original purchaser against defects in material and workmanship for 3 years from the date of purchase. During this warranty period, Manufacturer will, at its option, replace or repair the defective unit, subject to verification of the defect or malfunction.
This warranty does not cover fuses, disposable batteries, or damage from abuse, neglect, accident, unauthorized repair, alteration, contamination, or abnormal conditions of operation or handling.
Any implied warranties arising out of the sale of this product, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited to the above. The manufacturer shall not be liable for loss of use of the instrument or other incidental or consequential damages, expenses, or economic loss, or for any claim or claims for such damage, expense or economic loss. Some states or countries laws vary, so the above limitations or exclusions may not apply to you.

www.appatech.com
APAC
MGL APPA Corporation
cs.apac@mgl-intl.com
Flat 4-1, 4/F, No. 35,
Section 3 Minquan East Road,
Taipei, Taiwan
Tel: +886 2-2508-0877 700020041 JULY 2021 V1
© 2021 MGL International Group Limited. All rights reserved.
Specifications are subject to change without notification.

References

• APPA

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