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IM 05D01D02-41E 4th Edition: May 31, 2006-00

Contact Inputs

• Purpose: Selection between target setpoints or Auto/Man modes, or for other pur-

poses

• Number of inputs: 2

• Input type: Non-voltage contact or transistor open collector input

• Input contact rating: 12 V DC, 10 mA or more

• On/off determination: For non-voltage contact input, contact resistance of 1 k or less

is determined as “on” and contact resistance of 20 k or more as “off.”

For transistor open collector input, input voltage of 2 V or less is determined as “on”

and leakage current must not exceed 100 A when “off.”

• Minimum status detection hold time: About 1 second.

Contact Outputs

• Purpose: Alarm output, FAIL output, and others

• Number of outputs: 3

• Relay contact rating: 240 V AC/1 A or 30 V DC/1 A (COM terminal is common.)

(FAIL output : 1b)

Display Specifications

• PV display:

UT350: 4-digit, 7-segment red LED display, character height of 20 mm

UT320: 4-digit, 7-segment red LED display, character height of 12 mm

• Setpoint display: 4-digit, 7-segment red LED display, character height of 9.3 mm (for

both UT350 and UT320)

• Status indicating lamps: LEDs

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YOKOGAWA UT320 User Manual

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