Version 4
SHEET 1 1272 680
WIRE 736 -1024 -96 -1024
WIRE 832 -1024 736 -1024
WIRE 1136 -1024 832 -1024
WIRE -96 -832 -96 -1024
WIRE 144 -832 -96 -832
WIRE 288 -832 144 -832
WIRE 144 -768 144 -832
WIRE 288 -768 288 -832
WIRE 832 -752 832 -1024
WIRE 800 -736 784 -736
WIRE -96 -720 -96 -832
WIRE 912 -720 864 -720
WIRE 960 -720 912 -720
WIRE 1072 -720 1040 -720
WIRE 1104 -720 1072 -720
WIRE 1200 -720 1184 -720
WIRE 800 -704 400 -704
WIRE 144 -672 144 -688
WIRE 400 -672 400 -704
WIRE 400 -672 144 -672
WIRE 784 -640 784 -736
WIRE 912 -640 784 -640
WIRE 1136 -640 1136 -1024
WIRE 144 -624 144 -672
WIRE 288 -624 288 -688
WIRE 400 -624 288 -624
WIRE 1072 -624 1072 -720
WIRE 1104 -624 1072 -624
WIRE 1200 -608 1200 -720
WIRE 1200 -608 1168 -608
WIRE 1104 -592 1088 -592
WIRE 912 -560 656 -560
WIRE -96 -512 -96 -640
WIRE -96 -512 -192 -512
WIRE 144 -512 144 -544
WIRE 144 -512 -96 -512
WIRE 288 -512 288 -544
WIRE 288 -512 144 -512
WIRE 736 -512 736 -1024
WIRE 656 -496 656 -560
WIRE 704 -496 656 -496
WIRE 912 -480 768 -480
WIRE 960 -480 912 -480
WIRE 1088 -480 1088 -592
WIRE 1088 -480 1040 -480
WIRE -192 -464 -192 -512
WIRE 400 -464 400 -624
WIRE 704 -464 400 -464
WIRE -96 -416 -96 -512
WIRE 1088 -400 1088 -480
WIRE -96 -272 -96 -336
WIRE 736 -272 736 -448
WIRE 736 -272 -96 -272
WIRE 832 -272 832 -688
WIRE 832 -272 736 -272
WIRE 1136 -272 1136 -576
WIRE 1136 -272 832 -272
FLAG -192 -464 0
FLAG 1088 -320 0
SYMBOL Misc\\EuropeanResistor 128 -784 R0
SYMATTR InstName R1
SYMATTR Value 3.3k
SYMBOL Misc\\EuropeanResistor 128 -640 R0
SYMATTR InstName Refminus20
SYMATTR Value 80
SYMBOL Misc\\EuropeanResistor 272 -784 R0
SYMATTR InstName R3
SYMATTR Value 3.3k
SYMBOL Misc\\EuropeanResistor 272 -640 R0
SYMATTR InstName PT100
SYMATTR Value 100
SYMBOL voltage -96 -736 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL Opamps\\UniversalOpamp2 832 -720 R0
SYMATTR InstName U1
SYMBOL voltage -96 -432 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL Opamps\\UniversalOpamp2 1136 -608 R0
SYMATTR InstName U2
SYMBOL Opamps\\UniversalOpamp2 736 -480 R0
SYMATTR InstName U3
SYMBOL Misc\\EuropeanResistor 896 -576 R0
SYMATTR InstName R4
SYMATTR Value 3.9k
SYMBOL Misc\\EuropeanResistor 896 -656 R0
SYMATTR InstName R5
SYMATTR Value 3.9k
SYMBOL Misc\\EuropeanResistor 896 -736 R0
SYMATTR InstName R6
SYMATTR Value 3.9k
SYMBOL Misc\\EuropeanResistor 1056 -736 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 8.2k
SYMBOL Misc\\EuropeanResistor 1056 -496 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 8.2k
SYMBOL Misc\\EuropeanResistor 1200 -736 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 47k
SYMBOL Misc\\EuropeanResistor 1104 -304 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R10
SYMATTR Value 47k
TEXT -216 -232 Left 2 !.tran .04