Installation And Wiring; Installation And Dimensions; Installation Site; Mounting Methods - YOKOGAWA SC202G User Manual

3. INSTALLATION AND WIRING

3-1. Installation and dimensions

3-1-1. Installation site

The EXA transmitter is weatherproof and can be installed inside or outside. It should, however, be
installed as close as possible to the sensor to avoid long cable runs between sensor and transmitter. In
any case, the cable length should not exceed 60 meters (200 feet). Select an installation site where:
• Mechanical vibrations and shocks are negligible
• No relay/power switches are in the direct environment
• Access is possible to the cable glands (see figure 3-1)
• The transmitter is not mounted in direct sunlight or severe weather conditions
When the instrument with Suffix Code "-B,-N,-D" is used, take measures so that the display window is
not exposed to direct sunlight
• Maintenance procedures are possible (avoiding corrosive environments)
The ambient temperature and humidity of the installation environment must be within the limits of the
instrument specifications. (See chapter 2).

3-1-2. Mounting methods

Refer to figures 3-2 and 3-3. Note that the EXA transmitter has universal mounting capabilities:
• Panel mounting using optinal bracket, refer to Fig. 3-2a.
• Panel mounting using two (2) self-tapping screws, refer to Fig. 3-2b.
• Surface mounting on a plate (using bolts from the back)
• Wall mounting on a bracket (for example, on a solid wall)
• Pipe mounting using a bracket on a horizontal or vertical pipe (nominal pipe diameter JIS 50A)
202 (7.95)
162 (6.4)
180
(7)
42
Grounding terminal
(1.65)
(M4 screw)
9
(0.35)
34
(1.3)
56±0.2
(2.20)
Transmission signal cable inlet
Cable gland : Pg13.5
Fig. 3-1. Housing dimensions and layout of glands
155 (6.1)
50
(2)
130
(5.1)
Hood (Option)
77
□
(3)
Option code : / H
115 (4.5)
68
(2.7)
Sensor cable inlet
cable gland (Pg13.5)
M6 screw (32
(1.26) depth
Adapter
G1/2 screw (/AFTG)
1/2 NPT screw (/ANSI)
Panel thickness
30
(1.2)
38
(1.5) (3.15)
PANEL CUTOUT
)
1.eps
Fig. 3-2a. Panel mounting diagram
Approx.
49
55
(1.93)
(2.2)
2.eps
Installation and wiring 3-1
Unit: mm (inch)
1 to 10
Panel mounting
bracket
(0.04 to 0.39)
(1.2)
30
60
(2.36)
185
80 3.9
205
(0.15)
+1.1
156
0
(6.14)
173
+1.1
138
0
(6.81) (5.43)
121
(4.76)
IM 12D08B02-01E
(7.28)
(8.07)
5.eps