 |
Dwyer - Instruments Inc, U.S.A. |
 |
 |
Thermal Flow Sensor
Series TFS
Adjustable Setpoint, LED Flow Indication, NO or NC Output
|
| |
|
| |
|
|
| |
|
| |
The Series
TFS Flow Switch
with adjustable setpoint offers precise flow monitoring of water-based
fluids. Units have five selectable flow range settings from 0.2
m/s (0.66 ft/s) to 3.0 m/s (9.8 ft/s). Flow is indicated as a percentage
of the flow range on a string of LEDs. The setpoint, adjustable
from 15% to 90% of the flow range setting, is displayed as a flashing
LED.
STOCKED MODELS
|
| |
Model
Number
|
Switching
Output
|
TFS10
|
PNP,
normally open
|
TFS11
|
PNP,
normally closed
|
|
| |
|
| |
PHYSICAL
DATA |
| |
Media:
|
|
Water-based
fluids
|
Measuring
Rates:
|
|
0.2
m/s (0.66 ft/s), 0.4 m/s (1.3 ft/s), 1.0 m/s (3.3 ft/s), 2.0
m/s (6.6 ft/s), and 3.0 m/s (9.8 ft/s)
|
Set
Point Range:
|
|
15%
to 90% of range setting
|
Response
Time:
|
|
2
to 10 seconds (relative to range setting)
|
Repeatability:
|
|
Less
than 2.0%
|
Linearity:
|
|
Less
than 5%
|
Hysteresis:
|
|
10%
(approximate)
|
Maximum
Pressure:
|
|
435
psi (30.0 bar)
|
Operating
Temperature Range:
|
|
-4°F
to 176°F (-20°C to 80°C)
|
Supply
Voltage:
|
|
18
to 30 VDC, including residual ripple
|
Switching
Current:
|
|
400
mA maximum
|
Power
Consumption:
|
|
1
watt (approximate)
|
Electrical
Connection:
|
|
Plug-in
78" (198 cm) oilflex cable (included)
|
Process
Connection:
|
|
½"
- 14 NPT(M)
|
Sensor
Material:
|
|
303
stainless steel
|
Housing
Material:
|
|
glass
fiber reinforced PBTP (Ultrdur), meets IP 65.
|
Weight:
|
|
0.66
lbs. (301 g)
|
|
| |
|
| |
|
| |
|
|
|
 |
|
 |
|
