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Features
Voltage absence testing: a clearly-defined procedure
Beyond the standard recommendations
AC and DC voltage testing
Voltage detection takes priority, is automatic and is indicated by distinct visual and audible signals:
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.
ApplicationsVoltage 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:
Ergonomics specially designed for use in the field
| 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) |
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Not Applicable
| Condition: | NA |
Defective new equipment may be returned for warrantyrepair/exchange to us within (5) days of the shipment receipt date. After five (5) days, returns will be handled by direct contact and in accordance with the warranty terms of the item's manufacturer. Items that have malfunctioned due to mishandling, electrical overload, etc., will be subject to repair charge.
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