Introduction; Instruction And Operation Manual For Atex; Year Of Manufacture; Function Of Equipment - Mettler Toledo 0782 Manual Del Usuario

1 Introduction

1.1

Instruction and Operation Manual for ATEX

This section covers only the ATEX-relevant aspects of the product.
Refer to 0782 ATEX certificate KEMA 06ATEX0122 or KEMA 02ATEX1249 X. When load cells are considered in type of protection non-
sparking Ex nA, they need to be fitted in an enclosure that complies with the equipment's of clause 6 of EN60079-15. With a permanent
marker place a mark (√) in the box on the load cell label to indicate the applicable protection (KEMA 06ATEX0122 or KEMA 02ATEX1249 X).
Once selected it may not be changed.
KEMA 02ATEX1249 X
II 2G Ex ib IIC T4.T6
II 2D Ex ibD 21 IP68 T60°C
Ui = 25V ; li = 600mA
Pi = 1.25W (T4) / 0.86W (T5) / 0.57W (T6)
Ci = 0.2 nF/m ; Li = 1 μH/m
EN 60079-0:2006
EN 60079-11:2007
EN:61241-0:2006
EN 61241-11:2006

1.2 Year of Manufacture

The year of manufacture is indicated by the 3rd and 4th bit of the load cell Serial Number (S/N) as follows:
3rd and 4th bit
Year

2 Function of Equipment

The 0782 can be used as category 2 or 3 equipment for hazardous Gas and hazardous Dust environments (Zone 1, 2, 21 and 22)

2.1 Details on Temperature Class / Coding

The following table shows the relationship between maximum total power Pi and maximum ambient temperature.
Temperature class/coding
T6 (gas)
T5 (gas)
T4 (dust)

2.2 Connection

Color Code:
Green
Black
White
Red
Yellow
Blue
Yellow, long

2.3 Information for Connections

a. The resistance between all safety ground connections and the system grounding electrode must not exceed 1 ohm
b. If applying as intrinsically safe, the load cells must be interfaced with an approved safety barrier matching the entity parameter of the
load cells.
30085412E Load Cell 0782
KEMA 06ATEX0122
II 3 G Ex nL IIC T6 or
II 3 G Ex nA II T6
II 3 D Ex tD A22 IP68 T60°C
Ui = 25V
Ci = 0.2 nF/m ; Li = 1 μH/m
EN 60079-0:2006
EN 60070-15:2005
EN 61241-0:2006
EN 61241-1:2004
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
Max Surface Temp Pi [W]
60°C 0.57
60°C 0.86
1.25
60°C
+ Excitation
- Excitation
+ Signal
- Signal
+ Sense
- Sense
Shield
3
Introduction