| |
Series 646 Differential Pressure Transducer |
| Low Cost, Ranges from ±0.5" w.c.,
Voltage Output |
| |
 Low
cost Series 646 Pressure Transducer is designed for use with
air and inert gases and can accurately measure differential
pressure down to ±0.5" w.c. The transducer utilizes
a fast response capacitive sensor and is temperature compensated
for stable output. Units provide an amplified voltage output
signal ideal for VAV systems, filter monitoring, HVAC fan
control, building pressurization and leak detection systems.
See Dimensions |
| SPECIFICATIONS |
Service: Compatible gas and air.
Wetted Materials: Graphite filled nylon housing, 96% alumina
ceramic sensor, silicone seal.
Accuracy: Non-linearity: ±0.5% FS max. Hysteresis and
Repeatability: ±0.05% FS max.
Temperature Limits: Operating: 14 to 140°F (-10 to 60°C).
Pressure Limits: Line Pressure: 1 psi. Overload Pressure: High
side: 5x rated pressure, Low side: 3x rated pressure.
Compensated Temperature Range: 50 to 104°F (10 to 40°C).
Thermal Effects: Zero Temp Effects: ±1.5% FS (>2.0"
H2O); ±3.0% FS (=2.0" H2O). Span Temp Effects: ±1.5%
FS (>2.0" H2O); ±4.0% FS (=2.0" H2O).
Power Requirements: 4.75 to 8 VDC.
Output Signal: 0.25 to 4.0 ±0.08 VDC @ 5.0 V supply (0.5
to 4.25 ±0.12 VDC for ±0.5" range).
Response Time: 15 msec @ 63% FS step response change.
Output Impedance: <100 O; short circuit protected.
Electrical Connection: Three color-coded leads, 24 AWG, 12"
length.
Process Connection: 1/8" or 3/16" I.D. tubing.
Weight: 2.5 oz (0.07 kg). |
| |
| Popular Models |
| Model
Number |
Range |
| 646-0 |
+/-
0.5" w.c. |
| 646-1 |
0
to 1" w.c. |
| 646-2 |
0
to 2" w.c. |
| 646-3 |
+/-
1.0" w.c. |
| 646-4 |
+/-
2.0" w.c. |
| 646-5 |
0
to 5" w.c. |
| 646-6 |
0
to 10" w.c. |
| 646-7 |
+/-
5.0" w.c. |
| 646-8 |
+/-
10.0" w.c. |
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