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Ashcroft DXL Low Pressure Differential Transducer/Transmitter

Low Pressure Differential Transducer/Transmitter
DXL

The Ashcroft® DXLdp is a variable capacitance sensor within a glass-clad silicon chip. The patented Si- Glas™ technology combines the inherent high sensitivity of a variable capacitance transducer with the repeatability of a micro-machined, ultra-thin silicon diaphragm.

The Ashcroft Si-Glas sensor enables precise measurement and control of very low pressure. Although the ultra-thin silicon diaphragm deflects only a micron, the sensor is 100 times more sensitive to pressure than available silicon piezo-resistive pressure sensors.

The Si-Glas sensor is composed of only sputtered metals and glass molecularly bonded to silicon. There are no epoxies or other organics in the sensor to contribute to drift or mechanical degradation over time. The glass-clad silicon diaphragm withstands extreme overpressure as well as severe shock and vibration.

• The exclusive patented Ashcroft® SpoolCal™ actuator provides in-place system calibration without disturbing process tubes
• Front access test jacks provide on-line signal reference without removing wiring
• LED range status indicators for instant troubleshooting information
• DIN Rail Mount – dramatically reduces installation and calibration costs
• 2:1 range turndown options
• CE standard with all outputs
• On-board voltage regulation allows use of lower cost, unregulated power supply

Select a link under the "item" tab below to order.

Table 1Table 2Table 3Table 4Table 5Table 6Table 7
XXXXXXXXXXXXXXX
Table 1Type Configuration
D XDXLdp
Table 2Accuracy/TC
30.25%, ±0.02%/°F
50.50%, ±0.02%/°F
Table 3Pressure Connection
FO11/8 NPT Female
Table 4Output Signal
050/5 Vdc
100/10 Vdc
151/5 Vdc
161/6 Vdc
424-20mA
Table 5Output Connection
STScrew Terminal
Table 6Pressure Range
Diff. or Gauge:
P1IW0.10˝W.C
Diff. or Gauge:
P25IW0.25˝W.C.
Diff. or Gauge:
P5IW0.50˝W.C.
Diff. or Gauge:
P75IW0.75˝W.C.
Diff. or Gauge:
1IW1.00˝W.C.
Diff. or Gauge:
1P5IW1.5˝W.C.
Diff. or Gauge:
2IW2.00˝W.C.
Diff. or Gauge:
2P5IW2.50˝W.C.
Diff. or Gauge:
2IW2.00˝W.C.
Diff. or Gauge:
3IW3.00˝W.C
Diff. or Gauge:
5IW5.00˝W.C.
Diff. or Gauge:
10IW10.00˝W.C.
Diff. or Gauge:
25IW25.00˝W.C
Diff. or Gauge:
50IW50.00˝W.C.
Compound:
P05WL±0.05˝W.C
Compound:
P1WL±0.10˝W.C
Compound:
P25IWL±0.25˝W.C
Compound:
P5IWL .±0.5˝W.C.
Compound:
P75IWL±0.75˝W.C.
Compound:
1IWL±1.0˝W.C.
Compound:
2IWL±2.0˝W.C
Compound:
2P5IWL±2.5˝W.C.
Compound:
5IWL±5.00˝W.C
Compound:
10IWL±10.00˝W.C.
Compound:
25IWL±25.00˝W.C.
Table 2Optional X-Variation
XLDLED
XPVProcess Valve Actuator
X212:1 Turn Down
XNLTest Jacks
XCLSpecial Range Calibration
PERFORMANCE SPECIFICATIONS
Custom Ranges: Special range calibration, (XCL) – Consult factory
Standard Response Time: 250m sec
(Consult factory for optional damping times)
ENVIRONMENTAL SPECIFICATIONS
Temperature Limits: Storage: –40 to 180°F
Operating: –20 to 160°F (10-95% R.H. noncondensing)
Compensated Range: +35 to 135°F
FUNCTIONAL SPECIFICATIONS
Overpressure Limits: Proof: 15 psid
Burst: 25 psi
Max. Static Line Pressure: 25 psi
Mounting Position Effect: 0.5˝ W.C. and higher 0.1% F.S./g
Below 0.5˝ W.C. 0.25% F.S/g.
Output signal is independent of power supply changes: 12-36 Vdc range without effect on output signal
Reverse Wiring Protected Zero and Span Potentiometers: Front accessible, non-interactive
Zero: ±5%F.S. Span: ±3%F.S.
Supply Current: < 10mA for voltage
Warm-up Time: 5 sec. max. to meet stated specifications from initial power-up
PHYSICAL SPECIFICATIONS
Pressure Connections: 1⁄8 NPT Female
Weight: 4.5 oz., NEMA 1 Case
MATERIALS: Enclosure: Glass-filled polycarbonate (UL94-V-1)
Media: Clean, dry and non-corrosive gas (consult factory for use on other media).
Mounting: DIN rail types EN50022, 35 & 45

High reliability HVAC, bio-pharm, bio-tech, room pressurization and control, velocity pressure 



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