CTI EM2 Series, Инструкция по установке и эксплуатации

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17
EM2
In/Out Adjust
The EM2 comes factory adjusted and should only
require minimal adjustment after installation.
The In/Out Adjustment mode provides fine zero
offset and gain adjustments of the incoming and
outgoing analog signals. These adjustments allow
compensation for slight differences between the
connected transmitter, EM2 display and analog input
device such as a PLC.
Enter In/Out Adjustment mode by pressing the
ENT
and keys at the same time, or access from the Top
Menu if turned On.
IN/OUT ADJUST
IN 4 MA ADJ: 0.07
IN 20 MA ADJ: 1.002
OUT 4 MA ADJ: -0.01
OUT 20 MA ADJ: 1.000
0 PPM
In 4 mA Adjust
or - to achieve correct zero display on the
EM2 from the incoming analog signal such as a gas
detector. For example, a 0-250 ppm detector with
a 4.00 mA signal should read 0 ppm. If the EM2 is
displaying 1 ppm, decrease the value until the display
shows 0 ppm.
In 20 mA Adjust
or - to achieve correct full-scale gain
display from incoming analog signal. This can be
accomplished with a loop calibrator or forcing the
connected transmitter full-scale to 20.00 mA.
Out 4 mA Adjust
or - to achieve a matching zero display on the
connected PLC or other analog input device.
Out 20 mA Adjust
or - to ensure that with a full-scale reading,
the EM2 display matches the display on the connected
PLC or other analog input device.