10
LT1013/LT1014
TYPICAL APPLICATIONS
U
–
+
–
+
A2
LT1014
6
5
7
6.98k*
1k*
5k
FLOW
CALIB
1µF
10M
RESPONSE
TIME
100k
1M*
–
+
A1
LT1014
2
3
1
1M*
1M*
6.25k**
1M*
T2T1
3.2k*
3.2k**
6.25k**
15Ω
DALE
HL-25
A4
LT1014
12
13
14
4
11
+15V
–15V
300pF
4.7k
+15V
OUTPUT
0Hz 300Hz =
0 300ML/MIN
1N4148
–
+
A3
LT1014
9
10
8
100k
100k
0.1
100k
383k*
2.7k
–15V
LT1004
–1.2
2N4391
15Ω HEATER RESISTOR
FLOWFLOW
PIPE
T1
T2
1% FILM RESISTOR.
SUPPLIED WITH YSI THERMISTOR NETWORK.
T1, T2 YSI THERMISTOR NETWORK = #44201.
FLOW IN PIPE IS INVERSELY PROPORTIONAL TO
RESISTANCE OF T1–T2 TEMPERATURE DIFFERENCE.
A1–A2 PROVIDE GAIN. A3–A4 PROVIDE LINEARIZED
FREQUENCY OUTPUT.
*
**
+15V
Hot Wire Anemometer
–
+
–
+
–
+
A4
LT1014
13
14
12
0V–10V =
0–1000 FEET/MINUTE
10M
RESPONSE
TIME
ADJUST
1µF
1µF
100k
A3
LT1014
9
8
10
500k
2M
FULL-
SCALE
FLOW
12k
A2
LT1014
6
7
5
150k*2k
Q4
Q5
Q2
Q3
1000pF
33k
2k
Q2–Q5
CA3046
PIN 3 TO –15V
1k
ZERO
FLOW
3.3k
–15V
150k*
+15V
–
+
A1
LT1014
2
1
3
Q1
2N6533
220
500pF
+15V
–15V
4
11
0.01µF
10k*
27Ω
1W
2k*
#328
REMOVE LAMP'S GLASS ENVELOPE FROM 328 LAMP.
A1 SERVOS #328 LAMP TO CONSTANT TEMPERATURE.
A2-A3 FURNISH LINEAR OUTPUT vs FLOW RATE.
1% RESISTOR.
*
Liquid Flowmeter
