AEMC C.A 773 Voltage Absence Tester

Availability: 1 Week

AEMC Instruments C.A 773 Offers

Features

• Full autotest
• Detection of stray voltages
• Unipolar phase detection (a single contact)
• Two-pole phase-sequence testing with 2-wire method = a third hand is not required
• Continuity test with audible and visual indication (R < 100 Ω)
• RCD trip test
• Complies with EN 61243-3 and IEC 61010 1000 V CAT IV
• Removable lead and test probe
• Extended continuity test with visual indication for: R < 0.5 to 2.999 kΩ
• Digital display
• Delivered complete and ready to use

Standards

Voltage absence testing: a clearly-defined procedure

• In the context of work on installations connected to the electricity distribution network, the standards stipulate that the measurements must be performed with the power off to avoid electrical hazards (EN 50110-1 standard, DIN VDE 0682-401, NF C 18-510, etc.). To secure the installation and ensure that it is non-current-carrying, there is a procedure called separation which imposes the use of a voltage absence tester

Beyond the standard recommendations

• A comprehensive integrated autotest with indication of the type of fault and tester also displays a text message for complete information
• Benefits from IP65 protection for indoor and outdoor use, which is significantly higher than the IP54 rating required by the standard.
• Extended class: for extreme environments, the C.A 771 can be used for measurements from -22 to 140°F (type S)
• Audible and visual continuity indication up to 100 Ω, in compliance with the recommendation in appendix B of the standard
• The test probes are removable to meet specific requirements or to comply with the legislation in certain countries

Functions

AC and DC voltage testing

Voltage detection takes priority, is automatic and is indicated by distinct visual and audible signals:

• Visual: bargraph
• Audible: loud intermittent beep

Stray voltages can be detected by pressing two buttons simultaneously (double command) in order to switch to lowimpedance mode.

An (Extra-low voltage) LED is a redundant safety feature which lights up when the voltage present is higher than the ELV (50 V AC/120 V DC). The higher the voltage present, the faster it flashes

Single-pole phase detection

You can detect the phase simply by establishing contact with one of the test probes.

Two-wire phase rotation with microprocessor

Simple and quick, the two-wire phase rotation function with microprocessor is useful in all circumstances, including on installations powered by an electrical generator set or behind an isolating transformer.

Continuity and resistance testing

By pressing the continuity button, you can check that the conductors are correctly connected. Continuity (R < 100 Ω) is indicated by a loud, continuous audio signal. In addition, the C.A 771 offers an extended continuity test and can be used to display the higher values via 3 thresholds (2 kΩ, 6 kΩ and 300 kΩ). The C.A 773 displays the resistance value directly.

Residual Current Device (RCD) trip test up to 30 mA

By simultaneously pressing the double command, you can cause a fault current sufficient to trip the RCD to flow through a low-impedance load.

Applications

• All indoor and outdoor low-voltage applications

Voltage up to 1000 V AC/1400 V DC at up to 800 Hz

The specifications of the C.A 771 and C.A 773 mean they can be used for work on all LV electrical networks, whether they are electricity distribution networks or the more specific networks encountered in naval or aviation applications.

Climatic conditions

The type-S extended climatic class allows use in extreme temperature conditions. This means it offers an operating range from -22 to 140°F for applications such as:

• Installations at altitude (mountains, etc.), underground installations, etc
• Refrigeration installations, greenhouses, etc
• Service vehicles (emergency, military, etc.)
• The IP65 protection rating also ensures maximum protection against solid pollutants (dust) and liquid pollutants (projections), allowing both indoor and outdoor use

Ergonomics specially designed for use in the field

• Digital display (C.A 773)
• Two molded test probes to ensure excellent handling while protecting against falls and shocks
• Built-in LED to light the point of measurement
• Removable test probes and 2 positions provided on the VAT for 16 (0.63") or 19 (0.75") mm spacing

AEMC Instruments C.A 773 Specifications

Specifications

Electrical
Display	LEDs + backlit digital display
Resolution	0.1 V from 1 to 299.9 V1 V from de 300 V
Voltage Absence Testing (VAT)	12 V AC ≤ U ≤ 1000 V AC; 12 V DC ≤ U ≤ 1400 V DC
Voltage	LEDs: (12 to 1000) V AC; (12 to 1400) V DCLEDs + backlit digital display: (1 to 299 ) V AC/DC (300 to 1000) V AC / 1400 V DC
Frequency	DC, (16.67 to 800) Hz
Impedance	> 500 kΩ
Maximum Peak Current	3.5 mA RMS
Polarity Indication	Yes
Redundant Haxardous Voltage Indication	The ELV (Extra-Low Voltage) LED indicates that the voltage is higher than the SELV (Safety Extra-Low Voltage) with rate at flashing proportional to the voltage level
Stray Voltage Detection	Yes (by low-impedance load switching)
GFI Tripping	Up to 30 mA
Phase/Neutral Identification	Above 50 V (45 to 65) Hz; above 150 V (16.67 to 45) Hz
Response Time	< 500 msof ELV indicator: < 1 s
Intrinsic Uncertainty	±(3% + 5 ct)
Continuity	Continuity detection is inhibited if a voltage > 1 V is presentMeasurement range: 0 to 3 kΩIntrinsic uncertainty: ±(3% + 5 ct)Resolution: 0.1Ω from 0 to 299.9Ω and 0.001 kΩ from 0.3 to 3 kΩAudible signal triggering threshold: 100 Ω to 0% +50%Test current =< 1 mAOpen circuit voltage =< 5 V
Phase Identification	15 Hz < frequency < 65 Hz50 V AC < voltage < 1000 V AC for 45 Hz < frequency ≤ 65 Hz150 V AC < voltage < 1000 V AC for frequency < 45 Hz
Order of Phases	Phase between 45 and 400 HzVoltage between 50 and 1000 V AC between phasesTime for acquisition of information after contact ≤ 1 secondInformation retention time: 10 secondsAllowable unbalance amplitude: 20%Allowable voltage harmonics: 10%Rejection of EDF remote control frames (TCC-175 Hz-188 Hz)
Lad Switching	Switched load: Approximately 8 kΩPeak current: 90 mACurrent consumed at 230 V AC: 30 mATriggering between 8 and 400 V ACOverload protection after 10 seconds at 230 V and 2 seconds at 400 V
General Specifications
Buzzer Trigger Threshold	100 Ω typical (150 Ω maximum)
Extended Continuity Test (Resistance)	0.5 Ω to 2999 kΩ
Test Current/Open-Circuit Voltage	≤1 mA/≤3.3 V
Phase Rotation	Two-wire method with microprocessor
Ph/Ph Voltage	50 V ≤ U ≤ 1000 V AC (45 to 400) Hz
Buzzer	Intermittent beep for voltage detection continuous beep for continuity
Altitude	< 6561.68' (< 2000 m)
Temperature	Operating: 5 to 113°F (-15 to 45°C), Type SStorage: -40 to 158°F (-40 to 70°C)
Power Supply	2 x AA batteries (included) or NiMH batteriesBattery life provides 2500 ten-second measurementsThe batteries can be replaced with rechargeable accumulators, but these will not last as long
Electrical Safety	IEC 61243-3, EN 61243-3, IEC 61010 1000 V CAT IV
Protection Rating	IP 65 according to IEC 60529IK 06 - 1J - Eha pendulum hammer method according to IEC 50102
Degree of Pollution	2
Drop Test	6.56' (2 m)
Dimensions	7.72 x 3.54 x 1.85" (196 x 90 x 47 mm)
Weight	1.25 lbs (567 g)

What's included with the AEMC Instruments C.A 773

• Voltage Absence Tester
• Test Certificate
• 2 x Removable Test Probes with Crystal Safety Cover
• Probe-Tip Protector
• Velcro Strap
• 2 x Alkaline Batteries
• Multilingual User Manual
• Two-Year Warranty

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