Altek a 830-KP - Manual (Page 15)

27
BLACK
BLACK
RED
3
2
1
RTD Element
OPERATING INSTRUCTIONS
MEASURE RTD SENSORS
26
MEASURE RTD SENSORS
Choose this function to read an RTD. Three wires must be use for
both 2 and three wire RTDs.
1) Disconnect the RTD from the instrument being calibrated.
2) Press the T/C/RTD/
Ω
pushbutton until any RTD type (Pt, Ni or
Cu) appears on the display.
3) Press the DISPLAY/SOURCE/READ push-button until SOURCE
and any RTD TYPE appear on the display
4) Connect using 3 wires as in the diagrams on the opposite
page. Use a 3 wire connection to read a 4 wire RTD (all four
wires must be the same gauge). Spade lugs are recommend-
ed to minimize any contact resistance.
To Change the RTD type
1) Press the TYPE/ENG UNITS push-button. The words SELECT
RTD TYPE and the current selection appear on the display.
2) Press any UP/DOWN push-button until the required type
appears on the display.
3) Press the STORE/RESET push-button or wait 5 seconds to
store the selection.
OPERATING INSTRUCTIONS