Version 4
SHEET 1 908 680
WIRE 208 80 64 80
WIRE 432 80 208 80
WIRE 656 80 432 80
WIRE 64 112 64 80
WIRE 208 112 208 80
WIRE 432 112 432 80
WIRE 656 112 656 80
WIRE 64 208 64 192
WIRE 208 208 208 192
WIRE 432 208 432 192
WIRE 656 208 656 192
FLAG 208 208 0
FLAG 64 208 0
FLAG 432 208 0
FLAG 656 208 0
SYMBOL res 192 96 R0
SYMATTR InstName R1
SYMATTR Value {2E+14*RH**-5.64}
SYMBOL voltage 64 96 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 1V
SYMBOL res 416 96 R0
SYMATTR InstName R2
SYMATTR Value {5E+16*RH**-6.53}
SYMBOL res 640 96 R0
SYMATTR InstName R3
SYMATTR Value {7E+12*RH**-5.18}
TEXT 56 256 Left 0 !.step param RH 30 90 1
TEXT 56 288 Left 0 !.op
TEXT 272 136 Left 0 ;25C
TEXT 496 136 Left 0 ;5C
TEXT 720 136 Left 0 ;45C