TEST & MEASUREMENT DIVISION PC_F_ CA 6545/47 - 1 Personal et confidential Megohmmeters 5kV C.A 6545...

TEST & MEASUREMENT DIVISION

PC_F_ CA 6545/47 - 1Personal et confidential

Megohmmeters 5kV

C.A 6545 / C.A 6547

SALES PRODUCT INFORMATION

Electrical testing and safetyCécile Le Goué



The Experts in insulation at 5kV



Measurements

C.A 6545 C.A 6547INSULATION

Predetermined test voltages :

500-1000-2500-5000V

Programmable test voltage :

40 à 5100V (pas 10V/100V)

VOLTAGE

CAPACITANCE

LEAKAGE CURRENT

30 k…10 T

10 k…10 T

25…5100 V DC (15..500 Hz)

0,005…49,99 µF

0,000…3000 µA



Functional specifications

C.A 6545 C.A 6547

Automatic calculation of DAR & PI ratios

Automatic calculation of DD (Dielectric Discharge test)

Programming of test duration

R(t) function Limited to 20 samples With 128 kbyte

SMOOTH function

Programmable alarms

Exact test voltage measured

Yes, DAR & PI

Yes, DD = I1mn / (Test voltage x C)

Yes

Yes

Yes

Yes



Other specifications

C.A 6545 C.A 6547Memory - Yes, with 128 kbyte

RS232 - Yes, bi-directionnal

Supply

Battery charge status indicator

Backlit screen + bargraph

Electrical safety

Dimensions

Weight

270 x 250 x 180 mm

4 300 g

NiMH rechargeable battery

Yes

Yes

IEC 1010-1 Cat.III 1000V (or Ca.I 2500V) + EN 61557



A site-adapted hard casing, IP 67 when closed and IP 53 when

opened

A tool-bag containing all accessories

Clamps and plugs are perfectly insulated and measurement leads are 3m long.A 3m guard lead is also supplied for high-insulation measurements.

A special built-for-the-field design



A studied ergonomic design

A giant backlit LCD screen with digital display + bargraph

Test voltage selection by rotary switch:• 4 pre-determined test voltages:

500 V1000V2500V5000V

• 1 programmable test voltage position: 40 to 5100V in 10V or 100V steps

Measurement and function selection by pressing on a push-button



For an excellent quantitative analysis...

and qualitative analysis...

INSULATION measurement to 10 T

VOLTAGE measurement to 5100 V

CAPACITANCE measurement of the tested circuit

LEAKAGE CURRENT measurement

automatic calculation of DAR, PI and DD ratios

R(t) graph plotting



Reminder

Insulation resistance measurement qualifies the degree of insulation in installations or equipment. It also serves as a basis for preventive maintenance.

Insulation measurement is very sensitive to variations in temperature and humidity. While testing, measurement is also initially influenced by unwanted currents.

So, it is best to carry out :

quantitative measurement of long duration: provided by mode "Time-controlled testing"

and R(t) graph plotting

a qualitative analysis with calculation of DAR, PI and DD ratios.



DAR, PI ?A qualitative analysis can turn out to be more clever and reliable than a simple quantitative analysis: the calculation of DAR and PI ratios enable the user to ignore climatic conditions and unwanted currents liable to invalidate measurement results.

reminder : DAR = R 1mn / R 30s & PI = R 10mn / R 1mn

DD ?This test is especially suited for measurement on heterogeneous and multi-layer insulation, for it can reveal a defective layer among layers with high resistance. We recommend charging the insulator with 500V for 30 minutes.

DD = I1mn (current measured after 1mn (mA))

Test voltage (Volt) x Capacitance measured (Farad)

R(t) graph plotting :

when a time-controlled test begins, measured insulation samples are automatically memorized. It is possible to follow insulation evolution in function to the test voltage's application duration. Then R(t) graph can then be plotted out either by hand or directly on a PC screen using the MégohmView software.

Reminder



To order

C.A 6545…………………………………………P01.1397.01

C.A 6547…………………………………………P01.1397.02

delivered complete with tool-bag containing accessories : - 2 x 3 m safety leads with HV plug and HV crocodile clip (red/blue) - 1 x 3 m safety guard lead with HV rear pick up plug and HV crocodile clip (black)- 1 x 0.35 m rear pick up lead (blue)- 1 x 2 m mains supply lead- 1 user's manual in 5 languages code 689 439 A00- 5 plastic-coated, two-sided condensed user's manual



Accessories & replacement parts

8 m HV blue crocodile clip lead P01.2952.148 m HV red crocodile clip lead P01.2952.15 8 m HV black crocodile clip rear pick up lead P01.2952.1615 m HV blue crocodile clip lead P01.2952.1715m HV red crocodile clip lead P01.2952.18 15 m HV black crocodile clip rear pick up lead P01.2952.19PC Software for C.A 6547 P01.1019.38ASerial printer P01.1029.03Serial-to-parallel adapter P01.1019.413 x 3m HV crocodile clip leads (blue / red / guarded black) P01.2952.200.35 m rear pick up lead (blue) P01.2952.21Tool-bag P01.2980.612 m mains supply lead P01.2951.74

TEST & MEASUREMENT DIVISION PC_F_ CA 6545/47 - 1 Personal et confidential Megohmmeters 5kV C.A 6545...

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