Mettler Toledo M400/2(X)H Instrukcja Użytkownika Pobierz pdf (Strona 8)

System overview

The GPro Series consists of four main components:

➊

Sensor head

The combined transmitter and receiver unit is called the sensor head. This part contains the laser, optics and all the

electronics for laser control, signal processing, line locking, detector electronics, etc. The sensor head has an Ether-

net interface for high level maintenance by the use of METTLER TOLEDO Process Analytics specific software.

All parts of the sensor head is non-wetted and never gets in contact with the process. If this feature has been selected

when purchasing the analyzer, the GPro 500 can also provide 2x 4…20 mA passive analog outputs directly from

the sensor head.

➋

Insertion probe

The probe exists in several standard versions where both material of construction and insertion length can be cus-

tomized to particular needs.

Material of construction

Metallic Parts 1.4404 (comparable to 316L), Hastelloy C22

Glass, Optics AR coated Quartz, AR coated Borosilicate

O-rings, Gaskets Kalrez

6375, Graphite

Probe lengths

290 mm/11.42"

390 mm/15.35"

590 mm/23.23"

Other materials of construction as well as different probe lengths are available upon request.

➌

M400 type 3 transmitter

The M400 is the GPro 500 user interface. Using the M400, the user can set the necessary parameters for operation,

and control the alarm and I/O setup. The M400 will also display the measured gas concentration, the process tem-

perature and pressure as well as the transmission (signal quality / strength). It features class 1 Div 2 FM approval

(ATEX zone 2) and four active 4– 20mA analog outputs.

➍

Junction box

A junction box is required between the sensor head and the M400. An existing junction box can be used, or one can

be ordered as an accessory. The 4– 20mA signals for temperature and pressure compensation are connected to the

sensor's head through the junction box. The Ethernet interface can be accessed through the junction box as well.

(optional)

System overview GPro™ 500 TDL Series

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Mettler Toledo M400/2(X)H Instrukcja Użytkownika Strona 8