Data Sheet
IXLdp Ultra-Low Differential Pressure Transmitter
FEATURES
Current and voltage output signals available
Custom ranges available
FM approval for hazardous locations (OPT.)
5:1 turndown option
Si-Glass™ technology enables precise measurement
and control of very low pressures
TYPICAL USES
HVAC
Fume Hood Control
Lab/Clean/Hospital Room Pressurization
Laminar Flow
Furnace/Stack Draft
Leak Detection
Pollution/Filtering Monitoring
Medical Equipment
Fan Tracking
Filter Monitoring
Velocity Measurements
Building Energy Management/Comfort Control
Systems
PERFORMANCE SPECIFICATIONS
Reference
Temperature:
Accuracy Class: ±0.25% of span, ±0.5% of span (Terminal Point
Stability: ±0.25% of span/year at reference conditions
Media Compatibility: Clean, dry and non-corrosive gas
Standard Response
Time:
ENVIRONMENTAL SPECIFICATIONS
Temperature
Limits:
Thermal Coefficients:
Vibration Sweep:
Humidity Effects:
70°F ±2°F (21°C ±1°F)
Method: includes non-linearity, hysteresis, nonrepeatability, zero offset and span setting errors)
NOT FOR USE ON LIQUIDS
250ms
Storage:
Operating:
Operating (FM):
Compensated:
Zero and Span:
0.25% Accuracy: ±0.01% of span/°F
0.5% Accuracy: ±0.02% of span/°F
<0.2% span/g temporary effect 10-130Hz
No performance effect at 0-95% R.H.
noncondensing
–40°F to 210°F (–40°C to 99°C)
–20°F to 185°F (–29°C to 85°C)
–4°F to 104°F (–20°C to 40°C)
0°F to 160°F (–18°C to 71°C)
IXLdp Pressure
Transmitter
KEY BENEFITS
• Broad temperature capability
• Superior long-term stability and repeatability
• High overpressure protection
• On-board voltage regulation allows use of lower
cost, unregulated power supply
• 3 year warranty
FUNCTIONAL SPECIFICATIONS
Mounting Position
Effect:
Max. Static (Line)
Pressure:
100 psi
ELECTRICAL SPECIFICATIONS
Circuit Protection: Reverse Wiring Protected
Potentiometers:
Supply Current: 2.6 mA typical for Voltage output
Warm-up Time: <1 second
≥1 IWC: ±0.1% of span/g
0.25 IWC to 0.5 IWC: ±0.5% of span/g
0.1 IWC: ±0.8% of span/g
Calibrated horizontally standard unless
otherwise specified. Mounting Position Effect easily
corrected with zero potentiometer
Proof:
20 psid
Internal
Zero: ±10% of span
Span: ±10% of span
Burst:
50 psid
of 41
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. IXLDP_transmit ter_ds1.0, Rev. A, 04/19
ashcroft.com
info@ashcroft.com
1.800.328.8258
Data Sheet
IXLdp Ultra-Low Differential Pressure Transmitter
Output Signal: 4-20 mA (2-wire) 12-36 Vdc
0-5 Vdc (3-wire) 12-36 Vdc
1-5 Vdc (3-wire) 12-36 Vdc
1-6 Vdc (3-wire) 12-36 Vdc
±2.5 Vdc (3-wire) 12-36 Vdc
±5 Vdc (3-wire) 12-36 Vdc
Output signal is independent of power supply
changes: 12-36 Vdc range without effect on
output signal
PHYSICAL SPECIFICATIONS
Electrical Connection:
½˝ female electrical conduit connections isolated
from the electronics. Separate access cover for
terminal connections
Environmental Rating:
Process Connection:
NEMA 4X
¼ NPT Female
HAZARDOUS SPECIFICATIONS
FM (OPT.) Approval: Intrinsically Safe: Class I, II, III Div. 1
Groups A, B, C, D, E, F and G when properly installed
with an approved FM intrinsically safe barrier.
Non-incendive: Class I, II and III Div. 2, Groups A, B,
C, D, E, F and G (4-20 mA output only)
Consult Factory for: Other pressure range,temperature compensation,
packaging variations or response times
WETTED MATERIAL
Media
Clean, dry air/gases compatible with Aluminum, Titanium, PBT, Buna,
Silicon, Glass, Gold, Silicone RTV and Stainless steel
NOT FOR USE ON LIQUIDS
NON-WETTED
Housing
300 series SS
LOAD LIMITATIONS 4-20 mA OUTPUT ONLY
1,250
1,091
1,000
750
545
500
Loop Resistance (Ω)
250
0
0 10 12 20 24 30 36 40
OPERATING
REGION
Loop Supply Voltage (Vdc)
V
= 12V+ (0.022A x RL)
min
R
= RS + R
L
RL = Loop Resistance (ohms)
R
= Sense Resistance (ohms)
S
R
= Wire Resistance (ohms)
W
W
Featuring a highly reliable variable capacitance sensor using the patented
Ashcroft® Si-Glass™ sensor. This ultra-thin single crystal diaphragm provides
inherent sensor repeatability and stability.
Sensor Cross Section
The silicon diaphragm sensor has no glues or other
organics to contribute to drift or mechanical degra-
dation over time.
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. IXLDP_transmit ter_ds1.0, Rev. A, 04/19
of 42
ashcroft.com
info@ashcroft.com
1.800.328.8258
Data Sheet
IXLdp Ultra-Low Differential Pressure Transmitter
ORDERING CODE Example:
Model
IX3 - IXLdp Series , ±0.25% of span, ±0.01% of span T.C. /°F IX3
IX5 - IXLdp Series, ±0.5% of span, ±0.02% of span T.C. /°F
Pressure Connection
F02 - ¼ NPT Fem ale F02
Output Signal
05 - 0-5 Vdc
15 - 1-5 Vdc
16 - 1-6 Vdc
25 - ±2.5 Vdc
42 - 4-20 mA 42
50 - ±5.0 Vdc
Eletrical Termination
ST - Screw Terminal ST
Pressure Range
Unidirectional Ranges (differential)
P1IW - 0.10 IWC
P25IW - 0.25 IWC
P5IW - 0.50 IWC
1IW - 1.00 IWC
2IW - 2.00 IWC 2IW
2P5IW - 2.50 IWC
3IW - 3.00 IWC
5IW - 5.00 IWC
10IW - 10.00 IWC
15IW - 15.00 IWC
20IW - 20.00 IWC
25IW - 25.00 IWC
50IW - 50.0 0 IWC
100IW - 100.00 IWC
150IW - 150.00 IWC
200IW - 20 0.00 IWC
Bi-directional Ranges
P05IWL - ±0.05 IWC
P1IWL - ±0.10 IWC
P2IWL - ±0.20 IWC
P25IWL - ±0.25 IWC
P5IWL - ±0.50 IWC
1IWL - ±1.00 IWC
2IWL - ±2.00 IWC
2P5IWL - ±2.50 IWC
3IWL - ±3.00 IWC
5IWL - ±5.00 IWC
10IWL - ±10.00 IWC
15IWL - ±15.00 IWC
20IWL - ±20.00 IWC
25IWL - ±25.00 IWC
50IWL - ±50.00 IWC
100IWL - ±100.00 IWC
Opti on (if i ndicating an option(s) m ust in clud e an “X”) –X__
1D - Variable dampening, 0-30sec
41 - 5:1 Turndown
CL - Custom pressure range calibration
FM - FM Approval (with 4-20 mA output only. FM cannot be offered with options X1D or XX 2)
NH - SS tag NH
NN - Paper t ag
X1 - Fast response time
X2 - Slow response time
IX3 F02 42 ST 2IW –XNH
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. IXLDP_transmit ter_ds1.0, Rev. A, 04/19
of 43
ashcroft.com
info@ashcroft.com
1.800.328.8258
Data Sheet
–
/4 NPT Female pressure connection
4.3
2.7
3.1
5.0
*
–
1
/4 NPT Female pressure connection
*
*
IXLdp Ultra-Low Differential Pressure Transmitter
DIMENSIONS
For reference only, consult Ashcroft for specific dimensional drawings
Front View
*
3.1
2.7
*
1
2.5
1
/2" Electrical conduit
4.3
Side View
2.9
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. IXLDP_transmit ter_ds1.0, Rev. A, 04/19
of 44
ashcroft.com
info@ashcroft.com
1.800.328.8258
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