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Martel Electronics, Corp. P.O. Box 770 Londonderry, NH 03053
Toll Free: (800) 821-0023 Phone: (603) 434-1433 Fax: (603) 434-1653
0.
1.
2.
3.
4.
BLACK
BROWN
RED
ORANGE
YELLOW
0V
NTC
V+
INT/EXT
°C/°F
Negative supply voltage to the module.
Connection for external 10k ? NTC sensor.
Positive supply voltage to the module.
Leave floating to display internal sensor temperature.
Connect to 0V to display external sensor temperature.
Leave floating to select °C measurement range.
Connect to 0V to select °F measurement range.
APPLICATIONS
RED
+4 to +28V d.c.
RED
+4 to +28V d.c.
BLACK
°C
NTC
R 25°C =10k ?
β 2 5 8 ? 5 C ° =3977 +0.75%
BROWN
BLACK
°C
ORANGE
S1
0V
Displaying ambient temperature in °C,
using the module's internal temperature sensor.
BROWN
RED
0V
Leave S1 open to display internal sensor temperature in °C.
Close S1 to display external Sensor temperature in °C.
+4 to +28V d.c.
YELLOW
NTC
R 25°C =10k ?
β 2 5 8 ? 5 C ° =3977 +0.75%
°F
ORANGE
S2
BLACK
S1
0V
Leave S1 open to display internal sensor temperature.
Close S1 to display external Sensor temperature.
Leave S2 open to display temperature in °C.
Close S2 to display temperature in °F.
Specifications liable to change without prior warning
EMT 1900
Issue 6
September/2001
M.C.
Applies to QM 110T
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