Instructions / Assembly

SENSAPHONE 10K ImmErSION TEmPErATurE SENSOr FGD-0105
Field wiring resistance causes the
sensor to read lower than actual
temperatures. Chart at right shows
max length allowable for a 1/10th
deg. Error. Multiply lengths if
greater error is allowable.
Wire size
22 gauge
20 gauge
18 gauge
16 gauge
14 gauge
40 60 80 100 120 150 175 200 230 Max temp F°
Max length wire
run (feet) for
given wire size
and max expected
temperature
1770 1025 621 373 233 124 75 45 31
2791 1618 980 588 368 196 118 74 49
4467 2586 1567 940 588 313 188 118 78
7107 4115 2494 1496 935 499 299 187 125
11265 6521 3953 2372 1482 790 474 296 198
GENErAl INFOrmATION
The active element is precision thermistor material accurate to within .36°F. Refer
to controller literature for overall system accuracy.
WIrE
The sensor does not require shielded cable or even twisted pairs. However, most
micro–based controllers operate more reliably when shielded cable is used.
Sensor leads are rated for 105°C.
WArNING
Connection to the sensor to any voltage source other than the controller speci-
cally designed for it can cause irreversible damage. The sensor resistance can be
checked with a VOM without harm.
CONNECTIONS
Solder connections are by far the most reliable and trouble free over extended
periods, and thus are preferred. Crimp type butt splices are the second choice and
usually prove satisfactory. Simple wire nut connections are an invitation to long
term trouble. This is an electronic hook up, not a power hook up. Equally impor-
tant is that the eld connection be made as far as possible from the sensed media.
Use the full lead length provided to avoid condensation at the eld connection.
APPlICATION rESTrICTIONS
Care should be taken in sensing temperatures in areas subject to rapid change in
ambient wet bulb temperatures. Sensing media where it is possible for the sensed
temperature to fall below the ambient dew point can cause condensation on the
sensor itself and on the eld connection.
mOuNTING
Install well into customer-supplied 1/2” FNPTsaddle (or Thredolet®). Screw sen-
sor into the well via the 1/8” NPSM brass tting.
WIrING
Terminate with butt splice or soldering. Wire nuts are not recommended. Use full
8’ (2.44m) lead length provided to avoid moisture migration up the wire.
Flow Flow
Angle must not allow end of well
Install the wells as shown to obtain
optimum well strength.
DImENSIONS
1/2" NPT
5.13
(13.03)
3.25
(8.26)
4.87
(12.38)
0.25
(0.63)
1.37
(3.49)
(XL)
1/8" NPSM
Sensor Sensor in Well
Greenfield
Fitting
in
(cm)
For technical support, call 877-373-2700.
SENSAPHONE
®
REMOTE MONITORING SOLUTIONS
901 Tryens Road
Aston, PA 19014
www.sensaphone.com

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