SIGRIST PhaseGuard C, Инструкция по эксплуатации

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Instruction Manual PhaseGuard C/ T/ HT Mechanical mounting
16 11026E/4
The standard length of the connection cable is 10 m. For greater distances, a junction box
must be inserted between the instrument and a customer-side control system or, as shown
in the figure below, with a SICON.
Figure 6: Installation of the photometer with junction box

Photometer

Junction box

Customer-side control system or
SICON.
The maximum distance (X) between SICON or a customer-side system (3) and the junction
box (2) depends on the power supply and the cross-section in use:
CROSS-SECTION MAX. DISTANCE
FOR 12 VDC
(WITH PROFIBUS)
MAX. DISTANCE
FOR 24 VDC
(WITH PROFIBUS)
REMARKS
[mm
2
] [m] [m]
0.14 40 (20) 150 (100)
0.20 60 (30) 250 (150) Standard version
0.34 100 (50) 400 (250)
0.50 140 (70) 600 (350)
0.75 210 (110) 800 (500)
1.00 280 (140) 800 (700)
1.50 400 (200) 800 (800)
Paired cable, complete copper-braided shielding, impedance 100-165 Ω, capaci-
tance < 60 pF/m
5.3. Installation of the SICON control unit, field bus
Installation of the optional SICON control unit as well as installation and commissioning of
the field bus interfaces are described in the Reference Manual.
Cross section for
greater distances
Cross-section
specifications
Cable structure