|
 Very
Low Pressure Transducer Validyne Model DP103
Description
Applications
Specifications
DP103 Diaphragm Range Chart
Theory of Operation
Installation
and Operation
Troubleshooting
Guide
 Very
Low Pressure Transducer Description:
The DP103 is designed for exceedingly
low differential pressure measurement applications where high
accuracy is required under rough physical and environmental conditions.
With full scale ranges as low as 0.1 Inch H2O, even the most demanding
low pressure measurements are possible. The symmetrical pressure
cavities and small volumetric displacement of the DP103 provide
fast response for accurate dynamic pressure measurements.
Corrosive gases are easily handled
as all surfaces exposed to the pressure media are 410 stainless
steel. Overpressures as high as 200% FS will not destroy the diaphragm
and, with re-calibration, the instrument may continue to be used.
When combined with a Validyne carrier demodulator, the DP103 will
produce a +/-10 Vdc or 4-20 mA signal proportional to differential
pressures as low as +/-0.1 In H2O. The DP103 comes with 10 feet
of cable terminated by a connector in the standard configuration.
Other lengths and connection options are available. With proper
extension cabling, the DP103 may be located 1000 feet or more
from the electronics.
Validyne DP103
Applications:
- Low Gas Flow Measurement
- Leak Detection Systems
- Clean Room Pressure Control
Very
Low Pressure Transducer Specifications:
Ranges: +/-0.1 In H2O to
+/-12.5 Psid
Accuracy: +/-0.25% FS
Overpressure: +/-200%FS with less than 0.5% FS zero shift
Line Pressure: 100 psig, less than 1% FS zero shift
Inductance: 20 mH, nominal, each coil
Output: 20 mV/V at FS, minimum
Zero Balance: Within +/-5 mV/V
Excitation: 5 Vrms 3khz to 5 Khz
Pressure Media: Liquids and gases compatible with 410 SST
Temperature Range: 0 to 160 deg F
Temp Effect on Zero: 1% FS/100 deg F
Temp Effect on Span: 5%/100 deg F
Volumetric Displacement: 0.0035 cu inches @ FS
Pressure Cavity Volume: .0.035 cu inches
Pressure Connection: 1/8 inch Female NPT
Electrical Connection: PT06A-10-6P Bendix, or equal
Validyne
DP103 Range Code Chart
| Range
Code |
Psi
|
In Hg
|
In H2O
|
KPa
|
Torr
|
CM H2O
|
|
.003
|
.006
|
.09
|
.022
|
.17
|
.22
|
| 06 |
.005
|
.010
|
.14
|
.035
|
.26
|
.35
|
| 08 |
.008
|
.016
|
.22
|
.055
|
.41
|
.56
|
| 10 |
.0125
|
.026
|
.35
|
.086
|
.65
|
.88
|
| 12 |
.020
|
.041
|
.55
|
.140
|
1.03
|
1.40
|
| 14 |
.032
|
.065
|
.89
|
.22
|
1.65
|
2.25
|
| 16 |
.05
|
.102
|
1.40
|
.35
|
2.58
|
3.50
|
| 18 |
.08
|
.16
|
2.22
|
.55
|
4.14
|
5.60
|
| 20 |
.125
|
.25
|
3.5
|
.86
|
6.5
|
8.80
|
| 22 |
.20
|
.41
|
5.5
|
1.40
|
10.3
|
14.0
|
| 24 |
.32
|
.65
|
8.9
|
2.2
|
16.5
|
22.5
|
| 26 |
.50
|
1.02
|
14.0
|
3.5
|
25.8
|
35.0
|
| 28 |
.80
|
1.6
|
22.2
|
5.5
|
41.4
|
56.0
|
| 30 |
1.25
|
2.5
|
35.0
|
8.6
|
65.0
|
88.0
|
| 32 |
2.0
|
4.1
|
55.0
|
14.0
|
103
|
140
|
| 34 |
3.2
|
6.5
|
89
|
22.0
|
165
|
225
|
| 36 |
5.0
|
10.2
|
140
|
35.0
|
258
|
350
|
| 38 |
8.0
|
16.0
|
222
|
55.0
|
414
|
560
|
| 40 |
12.5
|
25.0
|
350
|
86.0
|
650
|
880
|
|
