Special Conditions - Mettler Toledo InPro 6850i Bedienungsanleitung

10
Two-wire current circuit
Only for connection to certified intrinsically safe
circuits. Maximum values:
U ≤ 16 V, I
i
L = negligible
i
C = negligible
i

2.6.3 Special conditions

– The relationship between the maximum per-
missible ambient or media temperature and
temperature class, for category 1G applications,
zone 0, is shown in the following table:
Temperature class
T 6
T 5
T 4
T 3
– The relationship between the maximum per-
missible ambient or media temperature and
temperature class, for category 1D applications,
zone 20, is shown in the following table:
Temperature class
T 69 °C
T 81°C
T 109 °C
T 161°C
– The capacitance and inductance of the connect-
ing cable has to be considered.
– The O
be used in / with the fittings InFit
InTrac
in potentially explosive areas.
– The metal body of the O
fittings InFit 76*-*** or InTrac 7**-***, or other
appropriate fitting is optionally included in the
routine pressure test of the system.
– The independent fitting used for installation of O
Oxygen sensor must be conductively connected
to the equipotential bonding system.
InPro 6850 i / 6900 i / 6950 i
52 206 349
InPro 6850 i / 6900 i / 6950 i O
≤ 30 mA, P
i
Oxygen sensor type InPro 6XXX can
2
7**-***, or in / with other suitable fittings
®
2
≤ 50 mW
i
Max. ambient or
media temperature
68 °C
80 °C
108 °C
160 °C
Max. ambient or
media temperature
68 °C
80 °C
108 °C
160 °C
Oxygen sensors, or the
2
© 02 / 17 Mettler-Toledo GmbH
Printed in Switzerland
Sensor 12 / 25 mm
® 76*-*** or
2