Directed Electronics 3200HS Uživatelský manuál stáhnout pdf (Strana 39)

GOSSEN Mueller & Weigert 39

Vibration and Mechanical Shock Resistance

Influence factors for vibration and shock have been set forth in DIN EN 60 051. Our mea-

suring instruments comply with these requirements and are available as follows (see

respective data sheet for individual availability):

Effects of Vibration and Shock

Unless otherwise specified, class 1 and higher measuring instruments and accessories

must withstand the following shock and vibration tests, to which they are subjected during

the course of type testing:

Vibration Test

Vibration testing must be performed with the following specifications:

– Sweep frequency range:

10 Hz - 55 Hz - 10 Hz

– Wave amplitude: 0.15 mm

(corresponds to 1.5 g

at 50 Hz)

– Number of sweep cycles: 5

– Sweep velocity:

1 octave per minute

The vibration plane is vertical and the measuring instrument is mounted to the vibration

table in its usual operating position.

Shock Test

The shock test must be performed with the following specifications:

– Peak acceleration:

a) 147 m/s

(15 g

)

b) 490 m/s

(50 g

)

– No further explanation is required for peak acceleration value a). The manufacturer

must indicate a peak acceleration value of 490 m/s

for value b).

– Waveshape: semi-sinusoidal

– Number of shocks: 3 shocks each in both directions for 3 mutually perpendicular axes

(a total of 18 shocks)

– Shock duration: 11 ms

The measuring instrument must be secured such that one of the three axes corresponds

to the direction of motion of the rotational axis of the measuring mechanism.

After completion of this test, an additional measuring error of 100% of the error class

rating may not be exceeded.

Scale and Pointer Types

Scale and pointer types for quadrant and circular scales are defined in DIN 43 802, parts

2 through 4 (as of size 48 x 48 mm), as well as for horizontal and vertical scales (as of

size 48 x 24 mm).

Our square and rectangular panel meters with edgewise scale are in compliance with

these standards.

Unless otherwise specified, our measuring instruments and limit transducers

(MESSCONTACTER) are provided with the following degree of protection in accordance

with DIN VDE 0470:

IP 52 for housing front panel

IP 00 for terminals

Climate-Proof Measuring Instruments

In their “conditionally tropic-proof” versions, our measuring instruments are especially

well suited for:

– Moisture endangered areas in the temperate zones

– Indoor use in the dry tropics

– Indoor use in the wet tropics, during which condensation or seepage water, which may

be caused by air-conditioning, must be avoided.

Mechanical Stress Shock Resistance Vibration Resistance

Standard model

15 g

11 ms

0.15 mm

5 ... 55 Hz

Heightened requirements,

LN56

30 g

11 ms

2.5 g

5 ... 55 Hz

Heightened requirements,

LN55

50 g

11 ms

5.0 g

5 ... 55 Hz

Factor Allowable Values

Standard Measuring

Instruments

Conditionally Tropic-Proof

Measuring Instruments

Operating Temperature

Range

-25 ... + 40 °C -25 ... + 55 °C

Relative Humidity max. 85 %

(max. temp.: + 27 °C)

not for more than 60 days

per year

remaining days: 75%

annual mean: 65%

max. 95 %

(max. temp.: + 25 °C)

not for more than 30 days

per year

remaining days: 85%

annual mean: 75%

Condensation none none

Universal Program, General Overview

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