DEVAR d-RTTI, Руководство пользователя

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4
4.5 Set Offset
The Set Offset function is used to shift the temperature reading up
or down by a small amount as a fine temperature adjustment. At
the
OFFS prompt press the FUNC button to select the item. A
three digit number will appear with the leftmost digit blinking. Press
the
INCR button to change the value of the blinking digit. Press the
NEXT button to change which digit blinks. Edit the number then
press the FUNC button again to enter the selection. After the
FUNC button is pressed the Startup Sequence will complete and
the unit will go into the operating mode. The maximum offset
adjustment is
±10 degrees.
5.0 Error Messages
Setting the
HI or LO value to a number that falls outside of the
operating range of the instrument will cause Err to be displayed
and the unit will return to the edit screen so that the number can
be re-entered.
Setting the 4 to 20 mA output span (
span = HI – LO ) to a value of
less than 35 ºF or 20 ºC will cause SPAN Err to be displayed,
press any button to return to the HI prompt so that the error can be
corrected.
Setting the
OFFS value to a number greater than
±
10 will cause
Err to be displayed and the unit will return to the edit screen so
that the number can be re-entered.
6.0 Specifications
GENERAL
Display:
4 Digit LED with 0.4 inch high, red characters
Housing: Splash resistant faceplate with rear gasket seal
Material: ABS Plastic faceplate with polycarbonate window
and black anodized aluminum heat sink
Junction Box Die Cast, Gray Painted, Aluminum (Option -H)
Field Wiring Screw Compression Term Block
(Max Torque: 7 lb/in)
Sensor: 1000 Ohm Platinum RTD, Conforms to DIN
Standard EN 60751, Class A
Open RTD: Output goes upscale