Ametek TR-2100, Руководство по эксплуатации

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TR-2100 User Manual 59
Converting an Analog Channel from V/I or I/V
If a channel in the TR-2100 is to be changed from voltage to current, current to voltage, (or
other) the following information should be noted.
•
Voltage channels have a maximum input of 212.12 Volts AC RMS, 300
Volts Peak, or 300 Volts DC. If jumper JP0 for that channel is ON both
posts, then the channel is set for voltage. (Note that 50% will be 106.06 V
AC RMS, which will be used later.)
•
Current channels have a maximum input of 1.414 Volts AC RMS, 2 Volts
Peak, or 2 Volts DC. If jumper JP0 for that channel is OFF both posts, then
the channel is set for current. (Note that 50% will be .707 V AC RMS, which
will be used later.)
•
Special channels have a maximum input of 12 Volts DC. If the jumper is
removed from JP0 and placed ON JP1, then the channel is set for a 12 volts
DC input.
Procedure
1. Noting the above information, next we will need to locate the correct board and
the associated jumper to change. Analogue channels (when viewing the unit
from the front) start on the lowest card with channels one (1) through eight
(8). Channel one (1) is to the right hand side of the lowest Analogue Input
card. Figure 15 shows this in detail, including the locations of each jumper.
2. In the picture below, note the white holding bars on either side of the front of the
unit. Also, note the gray ribbon cables including the power cables on the left
side of each input board. These will all have to be removed before the input
card can slide out of the unit.
Not shown in this picture are the orange
plugs in the back of each card. Remove all plugs from the card to be
changed before attempting to remove the card.