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MERRICK Genetix User Manual

MERRICK Genetix
104 pages
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Page 25 of 104
Label Meaning
<blank> No Fault has occurred (since last reset)
“Fault-Off” Fault occurred, but is not now present
(may be reset)
“Fault-ON” Fault occurred and is still present
If a Logical I/O point shows the label “Fault-Off”, that means that condition did occur but
is no longer present. You may scroll to that item, select it and then press the Enter key to
Reset.
If a Logical I/O point shows the label “Fault-ON”, then this means the condition is still
repsent and it may not be Reset. The logical condition must no longer be present before
a Fault can be reset.
When all Faults have been reset, the text “FAULTS!” will disappear from the main
display.
Display Settings
These settings determine what is displayed on the main screen, and to a certain extent
how it is displayed.
Upper…
Lower…
Damping…
Upper
(Main Menu > Display Settings)
This item allows you to select what variable is displayed on the upper line of the main
screen. You may select from the following list

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MERRICK Genetix Specifications

Operating Environment IconOperating Environment
maximum ambient temperature50°C (122°F)
minimum ambient temperature-10°C (14°F)
Power IconPower
supply voltage24 VDC +/- 1V
power consumption8W nominal, 12W maximum
power dissipation5W nominal, 10W maximum
Loadcell Inputs IconLoadcell Inputs
excitation voltage5 VDC
excitation current300mA (max)
Tachos IconTachos
supply voltage5 VDC
supply current400mA, maximum (total)
Analog Inputs IconAnalog Inputs
input impedance (current input)200 ohms
input impedance (voltage input)100Kohms
Digital Inputs IconDigital Inputs
input impedance at 24 VDC7.5 KΩ
input impedance at 120 VAC64 KΩ
input impedance at 240 VAC120 KΩ
Digital Outputs IconDigital Outputs
contact ratings (AC)5A, 250 VAC
contact ratings (DC)5A, 30 VDC
External Mechanical Totalizer IconExternal Mechanical Totalizer
contact ratings (AC)120mA, 240 VAC
contact ratings (DC)120mA, 24 VDC

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