Introduction; Instruction And Operation Manual For Atex; Year Of Manufacture; Function Of Equipment - Mettler Toledo SLC611 Documentación De Usuario

1 Introduction

1.1

Instruction and Operation Manual for ATEX

This section covers only the ATEX-relevant aspects of the product.
Refer to SLC611 ATEX certificate DEKRA 15ATEX0015 X
DEKRA 15ATEX0015 X
II 1G Ex ia IIC T6...T4 Ga
II 1D Ex ia IIIC T100°C Da
II 3G Ex nA IIC T6...T4 Gc
II 3G Ex ic IIC T6...T4 Gc
II 3D Ex tc IIIC T100°C Dc
Ui=25V,Ii=600mA,Ci=6nF,Li=30μH
Pi=1.25W(T4)/0.86W(T5)/0.51W(T6)
EN 60079-0 2012 +A11; EN 60079-11 2012
EN 60079-26 2007; EN60079-15 2010
EN60079-31 2009

1.2 Year of Manufacture

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

2 Function of Equipment

The SLC611 can be used as category 1 or 2 equipment for hazardous Gas and hazardous Dust environments (Zone 0, 1, 2, 20, 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)
T100°C (dust)

2.2 Connection

Color Code:
GREEN
BLACK
WHITE
RED
YELLOW
The intrinsically safe circuit including the load cells must be built up with approved safety barriers or switch amplifiers matching the
connected weighing indicator.

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.
c. If applying as intrinsically safe, equipment connected to the safe side of the barrier shall not be powered by or generate more than
250VAC.
30129850A Load Cell SLC611
82 83 84 85 86 87 88 89 90 91 92 93 94 95 95
13 14 15 16 17 18 19 20 21 22 23 24 25 26 26
Ui=25V,Ii=600mA
Pi=1.25W(T4)/0.86W(T5)/0.51W(T6)
- 40°C ≤ Ta ≤ 50°C
-40 ≤Ta≤45
-40 ≤Ta≤50
+ Excitation
- Excitation
+ Signal
- Signal
Shield
3
Introduction