Variations In Nominal Field Of Use; Limits; Construction Specifications; Compliance With International Standards - Chauvin Arnoux C.A 6531 Notice De Fonctionnement

6.5. Variations in nominal field of use

Influence
quantities
Temperature
Relative
humidity
Supply
voltage
Frequency
(inV and in mA)
Capacity
en parallel
on the resistance
Radiated
electromagnetic
field
(1) amplitude-modulated at 1 kHz, by 80%

6.6. Limits

The instrument is protected across all ranges against a constantly
applied voltage, between any two terminals, of 600 V AC/DC on
the C.A 6531, and 720 V AC/DC on the C.A 6533.
The C.A 6531 is protected for 10 s against an accidental
overvoltage of 720 V across all the ranges.
The current input on the C.A 6531 accepts 0.63 A, beyond which
it is protected by fuse.

6.7. Construction specifications

Overall dimensions of the unit (L x l x h): 211 x 108 x 60 mm
Dimensions of the display: 73 mm x 54.3 mm
Weight: approx. 835 g
Materials:
- Polycarbonate housing
- Crystal polycarbonate screen
- Elastomer external mouldings
- Silicon keyboard.
Stand:
Enables the instrument to be tilted at 30°. It clips onto the
bottom of the housing when not in use.

6.8. Compliance with international standards

Electrical safety: NF EN 61010-1 + A2 (Nov. 95),
Dual insulation:
Pollution level: 2
Installation category: III
Rated voltage: 600 V
Operating
range
limits
-10 to + 55°C
20 to 80% HR
7 to 10 V
DC and
15..400 Hz
0 to 5 µF at
nominal current
3 V/m from
80 to
1000 MHz (1)
NF EN 61057 (Feb. 97) and DIN EN 61557
Measurement
variations
Typical
(1% R ±1 ct)/10°C (2% R ±2 ct )/ 10°C
2% R ± 2 ct
(1% R ±1 ct)/V
1% R ±1 ct
Negligible
-
40
Maximum
3% R ± 2 ct
(2% R ±2 ct)/V
2% R ±2 ct
1% R ±1 ct
3% R
for resistance