Vaisala MGP261, Руководство пользователя

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Parameter Value
P
o
0.5 W
U
m
40 V
C
o
820 nF
L
o
20 mH
The parameters listed in Table 5 (page 18) apply when one of the two conditions below is
given:
• the total L
i
of the external circuit (excluding the cable) is < 1% of the L
o
value; or
• the total C
i
of the external circuit (excluding the cable) is < 1% of the C
o
value.
The parameters are reduced to 50% when both of the two conditions below are given:
• the total L
i
of the external circuit (excluding the cable) is
≥
1% of the L
o
value; and
• the total C
i
of the external circuit (excluding the cable) is
≥
1% of the C
o
value.
Note: the reduced capacitance of the external circuit (including cable) shall not be greater
than 1μF for Groups I, IIA, IIB & IIIC, and 600nF for Group IIC.
The values of L
o
and C
o
determined by this method shall not be exceeded by the sum of all of
the L
i
plus cable inductances in the circuit and the sum of all of C
i
plus cable capacitances,
respectively.
Connecting Probe to Insight PC Software
The Insight PC software connection cable must only be used outside the explosion hazardous
area. Remove the probe from the process for configuration, and use only the Vaisala accessory
PC connection cable to connect the probe to Insight.
Maintenance
The probe filter is the only user-replaceable part in MGP261. For other maintenance
requirements, contact Vaisala.
Live maintenance is not allowed. CAUTION!
The content in this chapter is maintained in the following separately tracked document:
Document ID: M212241EN Revision: B (21 Jan 2019)
Chapter 2 – Product Overview
19