Omega Products TFD User Manual
4.6
(0.18)
2.3 (0.09)
2
3.0 (0.120)
3.18 (0.125) DIA.
25.4
(1.00)
600
(24)
38
(1.5)
1
3
(
0
.
5
)
TFD-ENB Probe
1000
(40)
2.0
(0.078)
10
(0.39)
10
(0.39)
0.2 Dia.
(0.008)
TFD Element
Thin Film Detector (TFD)
OMEGA®Thin Film RTD Elements and Probes
TFD Series
Starts at
$
Shown actual size.
25
TFD, $25, shown
This flat Platinum resistance detector
represents OMEGA’s latest
development in miniature
temperature sensing devices.
It combines the precision of the
Platinum resistance detector with the
small temperature-sensing tip and
rapid response time of the
thermocouple. An immediate field of
application for the TFD is surface
temperature measurement.
The TFD achieves rapid response
times because:
1) It has a high ratio of surface
area to volume
2) The temperature-sensitive
Platinum layer is separated from
the medium to be measured by
a thin ceramic substrate of high
thermal conductivity.
This is of particular interest to users
measuring temperature in gaseous
environments, such as wind tunnels
and air conditioners. The TFD is also
extremely vibration-resistant.
The resistance values and tolerances
comply with DIN 43760 and BS 1904
ratings (Pt100 Ω).
The TFD element is supplied in an
encapsulated sensor screw-mounted
brass housing with PFA insulated
leads. Two-, 3- or 4- wire
configuration is available. Sensor
design provides cost effective, fast
response and easy mounting on flat
surfaces. The maximum temperate
of the probe assembly is 260°C
(500°F). Termination options are
available for easy operation in
conjunction with OMEGA handheld
meters or other instruments.
Specifications
Element: TFD-design glass-
encapsulated Platinum layer on a
ceramic substrate
TFD Leads: Platinum wire 0.2 mm D
(0.008"), about 10 mm L (0.39")
Temperature Range:
-70 to 500°C (-95 to 930°F)
Insulative Resistance
at 500°C (930°F): >10
8
Ω
magnified 11 times.
TFD-ENB-3W, $65, shown larger
than actual size.
Hole for
#4 screw.
1 m (40") of #26 AWG
stranded nickel-plated
copper, PFA lead wire
260°C (500°F) max.
Stripped lead wires standard.
Optional connectors available,
see section G.
Dimensions: mm (in)
Voltage Necessary
for Destruction: 100 Vdc
Hysteresis Error
(Observed Only after Rapid
Temperature Cycling): Max 0.25
Self-Heating Error at 20°C (70°F):
In still air, 1.9 mW/°C;
in still water, 75 mW/°C
Response Time:
In Water Moving at 0.4 m/s:
t(50%) = 0.25 s
t(90%) = 1.1 s
In Air Moving at 1 m/s
t(50%) = 13.5 s
t(90%) = 55 s
IN STOCK FOR FAST DELIVERY!
To Order
TFD Element
Model No. Price Description
TFD $25 Thin film RTD element
Surface Mount Probe
Model No. Price Style Cable Lead Wire
TFD-ENB-2W-40 $65 2 Wires 1 m (40") PFA insulated $1.40
TFD-ENB-3W-40 65 3 Wires 1 m (40") PFA insulated 2.25
TFD-ENB-4W-40 75 4 Wires 1 m (40") PFA insulated 2.25
For lead wire length over 1 m (40"), use additional price per 300 mm (12")
increments and modify model number.
Ordering Example: TFD-ENB-3W-189, sensor screw mounted, 3 wires, 180" cable, $92.
(Specify Model Number)
Lead 300 mm
Wire (12")
C-123
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One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | info@omega.com
EPG05
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