Yokogawa MLX Manuel d'utilisateur télécharger pdf (Page 9)

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IM 60A02S01-01E-A

2.1 Model and Specifications Check

The model name and specifications are written on the name plate attached to the case.

MODEL: Specified model code.

SUFFIX: Specified suffix code.

MFG: Year of manufacture.

NO.: Serial number.

INPUT: Input signal (4-20mA DC).

CALIB RANGE: Specified calibration range.

Figure 2.2 MLX Name Plate

2.2 Unpacking

Keep the indicator in its original packaging to prevent it from being damaged during shipment.

Do not unpack the indicator until it reaches the installation site.

2.3 Storage

The following precautions must be observed when storing the instrument, especially for a long

period.

(a) Select a storage area which meets the following conditions:

• It is not exposed to rain or subject to water seepage/leaks.

• Vibration and shock are kept to a minimum.

• It has an ambient temperature and relative humidity within the following ranges.

Ambient temperature: –40 to 80°C (approval codes may affect limits)

Relative humidity: 0% to 100% R.H.

Preferred temperature and humidity: approx. 25°C and 65% R.H.

(b) When storing the indicator, repack it carefully in the packaging that it was originally

shipped with.

2.4 Selecting the Installation Location

(1) The MLX is designed to withstand severe environmental conditions. However, to ensure

that it will provide years of stable and accurate performance, take the following

precautions when selecting the installation location.

(2) Ambient Temperature

(3) Avoid locations subject to wide temperature variations or a significant temperature

gradient. If the location is exposed to radiant heat from plant equipment, provide

adequate thermal insulation and/or ventilation.

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Yokogawa MLX Manuel d'utilisateur Page 9