Heavy Duty Pressure Transducers 32328895
MLH Series, 6 bar to 550 bar | 50 psi to 8000 psi Issue B
Datasheet
FEATURES
Pressure range of 6 bar to 550 bar | 50 psi to 8,000 psi
0.25% full scale accuracy Best Fit Straight Line (BFSL)
Total Error Band (TEB) as low as 2 %FSS
Compensated and operating temperature range of -40C to
125C [-40F to 257F] (see Table 4)
Less than 2 ms response time
Fully temperature compensated, calibrated and amplified
Rated IP65 or better for protection from most harsh
environments
RoHS, CE, UL Component Recognition for USA and Canada:
File No. E258956
POTENTIAL APPLICATIONS
DESCRIPTION
Industrial: Compressors, cylinder tank pressure, HVAC,
The MLH Series Heavy Duty Pressure Transducers combine
hydraulics, oil and gas, refrigeration, water distribution
Application Specific Integrated Circuit (ASIC) technology
Transportation: Multiple applications including braking and
with a media-isolated, metal diaphragm design. This digitally
alternative fuels
compensated transducer offers value and performance,
Medical: Anesthesia delivery machines, blood analyzers,
making it a suitable pressure sensing solution for demanding
chemistry analyzers, gas chromatography, oxygen
applications. Industry standard electrical connectors and
concentrators, and ventilators
pressure ports are offered for enhanced reliability and user
flexibility.
PORTFOLIO
The MLH Series joins the PX3 Series, PX2 Series, SPT Series
The MLH Series has six standard output options:
heavy duty pressure transducers and the 13 mm Series and
Ratiometric: 0.5 Vdc to 4.5 Vdc from 5 Vdc excitation
19 mm Series heavy duty pressure transducers.
Current: 4 mA to 20 mA
Regulated: 1 Vdc to 6 Vdc
Figure 1. Total Error Band (TEB) Definition
Regulated: 0.25 Vdc to 10.25 Vdc
Regulated: 0.5 Vdc to 4.5 Vdc
Sources of Error
Regulated: 1 Vdc to 5 Vdc
Offset
Full Scale Span
VALUE TO CUSTOMERS
Pressure Non-Linearity
Total
Accuracy
Total Error Band (TEB) as low as 2 %FSS from -40C
Pressure Hysteresis
Error
BFSL
to 125C: Provides indication of the transducers true
Pressure Non-Repeatability
Band
measurement performance over a specified temperature Thermal Effect on Offset
range; small error promotes system uptime and efficiency. (See Thermal Effect on Span
Thermal Hysteresis
Figure 1.)
All metal wetted parts allow for potential use in a wide variety
of fluid applications.
No internal elastomeric seals eliminate O-ring compatibility
issues.
Amplified outputs reduce the need to purchase external
amplifiers.
Input reverse voltage protection guards against mis-wiring.
Less than 2 ms response time provides more accurate, high
speed measurement.
SSeennssiinng ag annd Id Inntteerrnneet of Tt of ThhiinngsgsHeavy Duty Pressure Transducers
MLH Series, 6 bar to 550 bar | 50 psi to 8000 psi
1
Table 1. Pressure Range Specifications (At 25C [77F] and at rated excitation unless otherwise specified.)
bar psi
Operating Proof Burst Operating Proof Burst
2
Pressure Pressure Pressure Pressure Pressure
Pressure
6 18 60 50 150 500
10 30 100 100 300 1000
16 48 160 150 450 1500
25 75 250 200 600 2000
40 80 400 250 750 2500
60 120 600 300 900 3000
100 200 1000 500 1500 5000
160 320 1600 1000 2000 10000
250 500 2068 2000 4000 20000
350 700 2068 3000 6000 30000
500 750 2068 5000 7500 30000
550 825 2068 8000 12000 30000
1
Comparable metric units follow same proof and burst specifications.
2
Bonded washer seal used on G 1/8 (DIN 3852-2) port is limited to 25000 psi burst.
Table 2. Electrical Specifications (At 25C [77F] unless otherwise noted.)
Output Signal
Characteristic
Ratiometric Current Regulated Regulated Regulated Regulated
A B C D E G
Zero output 0.5 Vdc 4 mA 1 Vdc 0.25 Vdc 0.5 Vdc 1 Vdc
4 Vdc
Full scale 4 Vdc 16 mA 5 Vdc 10 Vdc 4 Vdc
(0.5 Vdc to 4.5
span (FSS) (0.5 Vdc to 4.5 Vdc) (4 mA to 20 mA) (1 Vdc to 6 Vdc) (0.25 Vdc to 10.25 Vdc) (1 Vdc to 5 Vdc)
Vdc)
5 Vdc 9.5 Vdc to 8 Vdc to 14 Vdc to 7 Vdc to 8 Vdc to
Excitation
1 2 2 2 2 2
(6 Vdc max.) 30 Vdc 30 Vdc 30 Vdc 30 Vdc 30 Vdc
Supply 4 mA typ., 5 mA typ., 5 mA typ., 5 mA typ., 5 mA typ.,
N/A
current 8 mA max. 17 mA max. 17 mA max. 17 mA max. 17 mA max.
Source
1 mA N/A 1 mA 1 mA 1 mA 1 mA
(nominal)
Sink 1 mA A1 mA 1 mA 1 mA 1 mA
N/A
(nominal at zero output at zero output at zero output at zero output at zero output
Supply
90 dB 90 dB 90 dB 90 dB 90 dB 90 dB
rejection ratio
Output
25 Ohm max. N/A 25 Ohm max. 25 Ohm max. 25 Ohm max. 25 Ohm max.
impedance
1
Maintains ratiometricity at 5 0.25 Vdc excitation. Product can tolerate 6 Vdc excitation without damage.
2
See Figures 2 and 3 for more information regarding maximum excitation voltage vs. operating temperature.
Table 3. Pressure Reference Types
Pressure Reference Description
Output is proportional to the difference between applied pressure and a built-in fixed reference to
1
Sealed gage
1 atmA, where the minimum operating pressure is set to 14.7 psiA (1 atmA).
Transducer measures pressure relative to ambient pressure. Output is proportional to the difference
2
Vented gage (relative) between applied pressure and atmospheric (ambient) pressure, where the minimum operating
pressure is set to atmospheric pressure.
2 Sensing and Internet of Things