Installation Overview - Vaisala CARBOCAP MGP260 Serie Installations- Und Sicherheitshinweise

Installation overview

Figure 2 (page 11) shows an example MGP260 probe ball valve installation. The figure
highlights the correct wiring routes and shows the recommended installation depth and
orientation. An external pressure measurement instrument (item 5) is shown as an example of
pressure compensation input options: for a description of alternative options, see
compensation input options (page
3
1
2
Figure 2 MGP260 series probe installation example with wiring routes and recommended
orientation and depth
1 External pressure or temperature sensor input wiring (Ex ia): use the M16x1.5 lead-through
and route the cable directly to the terminal. Use the strain relief clamp located on the top
side of the component board.
2 Standard analog output, power supply input, and RS-485 communication wiring: use the
M20x1.5 lead-throughs and route the cables to the terminals from below the component
board. Use the strain relief clamp located on the bottom of the component board.
3 Metal barrier separating the intrinsically safe external sensor input terminals from the
analog output, power supply input, and RS-485 terminals on the component board.
4 1.5" male NPT thread on the probe: never install to any other thread type than 1.5"
female NPT.
5 Example pressure compensation input option: an external measurement instrument
connected to the MGP260 Ex ia input terminals (item 1).
6 For best results, install the probe horizontally and position the tip of the probe within 1/3 d
of the pipe centerline. In smaller pipes, the installation depth can be adjusted by using an
adapter (for example, a ball valve).
CAUTION!
temperature sensor input wiring (1), and make sure the wiring remains
separated from the terminals and wiring (2) on the other side of the metal
barrier (3) on the component board.
12).
4
Always use a separate cable for the (Ex ia) external pressure or
5
Pressure
6
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