FI
Heavy Duty Pressure Transducers
MLH Series, 6 bar to 550 bar | 50 psi to 8000 psi
FEATURES
008118
Issue 8
Datasheet
• All metal wetted parts allow for potential use in wide variety of
fluid applications
• No internal elastomeric seals mean no 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
• Rated IP65 or better for protection from most harsh
environments
DESCRIPTION
The MLH Series Heavy Duty Pressure Transducers combine
Application Specific Integrated Circuit (ASIC) technology
with a media-isolated, metal diaphragm design. This digitally
compensated transducer offers value and performance,
making it a suitable pressure sensing solution for demanding
applications. Fully temperature compensated, calibrated and
amplified, the MLH Series is available in pressure ranges of 6
bar to 550 bar | 50 psi to 8,000 psi. The MLH Series provides
±0.25% full scale accuracy Best Fit Straight Line (BFSL) and
a TEB (Total Error Band) as low as 2% over a temperature
range of -40 °C to 125 °C [-40 °F to 257 °F]. Industry standard
electrical connectors and pressure ports are offered for
enhanced reliability and user flexibility.
The MLH Series has six standard output options:
A. 0.5 Vdc to 4.5 Vdc ratiometric from 5 Vdc excitation
B. 4 mA to 20 mA
C. 1 Vdc to 6 Vdc regulated
D. 0.25 Vdc to 10.25 Vdc regulated
E. 0.5 Vdc to 4.5 Vdc regulated
G. 1 Vdc to 5 Vdc regulated
POTENTIAL APPLICATIONS
• Industrial: Compressors, cylinder tank pressure, HVAC,
hydraulics, oil and gas, refrigeration, water distribution
• Transportation: Multiple applications including braking and
alternative fuels
• Medical: Anesthesia delivery machines, blood analyzers,
chemistry analyzers, gas chromatography, oxygen
concentrators, and ventilators
PORTFOLIO
The MLH Series joins the PX3 Series, PX2 Series, SPT
Series, 13 mm Series and 19 mm Series heavy duty pressure
transducers.
Safety and Productivity Solutions
Heavy Duty Pressure Transducers
MLH Series, 6 bar to 550 bar | 50 psi to 8000 psi
Table 1. Pressure Range Specifications
1
(At 25
°C
[77
°F]
and at rated excitation unless otherwise specified.)
bar
psi
Operating
Pressure
6
10
16
25
40
60
100
160
250
350
500
550
1
Proof
Pressure
18
30
48
75
80
120
200
320
500
700
750
825
Burst
Pressure
60
100
160
250
400
600
1000
1600
2068
2068
2068
2068
Operating
Pressure
50
100
150
200
250
300
500
1000
2000
3000
5000
8000
Proof
Pressure
150
300
450
600
750
900
1500
2000
4000
6000
7500
12000
Burst
Pressure
500
1000
1500
2000
2500
3000
5000
10000
20000
30000
30000
30000
Comparable metric units follow same proof and burst specifications.
Table 2. Electrical Specifications
Output Signal
Characteristic
Zero output
Full scale
span (FSS)
Excitation
Supply
current
Source
(nominal)
Sink
(nominal
Supply
rejection ratio
Output
impedance
1
2
Ratiometric
(A)
0.5 Vdc
4 Vdc
(0.5 Vdc to 4.5 Vdc)
5 Vdc
(6 Vdc max.)
1
4 mA typ.,
8 mA max.
1 mA
1 mA
at zero output
90 dB
25 Ohm max.
Current
(B)
4 mA
16 mA
(4 mA to 20 mA)
9.5 Vdc to
30 Vdc
2
N/A
N/A
N/A
90 dB
N/A
Regulated
(C)
1 Vdc
5 Vdc
(1 Vdc to 6 Vdc)
8 Vdc to
30 Vdc
2
5 mA typ.,
17 mA max.
1 mA
A1
mA
at zero output
90 dB
25 Ohm max.
Regulated
(D)
0.25 Vdc
10 Vdc
(0.25 Vdc to
10.25 Vdc)
14 Vdc to
30 Vdc
2
5 mA typ.,
17 mA max.
1 mA
1 mA
at zero output
90 dB
25 Ohm max.
Regulated
(E)
0.5 Vdc
4 Vdc
(0.5 Vdc to 4.5 Vdc)
7 Vdc to
30 Vdc
2
5 mA typ.,
17 mA max.
1 mA
1 mA
at zero output
90 dB
25 Ohm max.
Regulated
(G)
1 Vdc
4 Vdc
(1 Vdc to 5 Vdc)
8 Vdc to
30 Vdc
2
5 mA typ.,
17 mA max.
1 mA
1 mA
at zero output
90 dB
25 Ohm max.
Maintains ratiometricity at 5 ±0.25 Vdc excitation. Product can tolerate 6 Vdc excitation without damage.
See Figures 1 and 2 for more information regarding maximum excitation voltage vs. operating temperature.
2
Safety and Productivity Solutions
Heavy Duty Pressure Transducers
MLH Series, 6 bar to 550 bar | 50 psi to 8000 psi
Table 3. Environmental and Mechanical Specifications
Characteristic
Material in contact with media:
port
diaphragm
Housing material
Weight (typical for Metri-Pack 150 and 1/8 NPT
pressure port types)
Shock
Vibration
Compensated and operating temperature range:
0.5 Vdc to 4.5 Vdc ratiometric output
all regulated and 4 mA to 20 mA outputs
Storage temperature range
Approvals
Parameter
stainless steel 304L
Haynes 214 alloy
black plastic – Amodel AS-4133 HS – PPA
57.0 g [2.0 oz]
100 g peak [11 ms]
MIL-STD-810C, Figure 514.2-5, Curve AK, Table 514.2-V,
Random Vibration Test (overall g rms = 20.7 min.)
-40 °C to 125 °C [-40 °F to 257 °F]
-40 °C to 125 °C [-40 °F to 257 °F] (See Figures 1 and 2 for operating area details.)
-40 °C to 125 °C [-40 °F to 257 °F]
RoHS, CE, UL Component Recognition for USA and Canada: File No. E258956
Table 4. Performance Specifications (At 25 °C [77 °F] and under unless otherwise noted.)
Characteristic
Response time
Accuracy
1
:
>100 psi
<100 psi
Total Error Band
2
:
Gage:
<300 psig
>300 psig
Sealed gage:
>300 psis
without
L, M, P
electrical connector types:
100 psis to 299 psis (-40 °C to 85 °C [-40 °F to 185 °F])
100 psis to 299 psis (>85 °C to 125 °C [>185 °F to 257 °F])
>300 psis (-40 °C to 125 °C [-40 °F to 257 °F])
with
L, M, P
electrical connector types:
100 psis to 299 psis (-40 °C to 65 °C [-40 °F to 149 °F])
100 psis to 299 psis (>65 °C to 125 °C [>149 °F to 257 °F])
>300 psis (-40 °C to 65 °C [-40 °F to 149 °F])
>300 psis (>65 °C to 125 °C [>149 °F to 257 °F])
1
2
Parameter
<2 ms
±0.25 %FSS
±0.50 %FSS
±3 %FSS
±2 %FSS
±2 %FSS
±3 %FSS
±10 %FSS
±2 %FSS
±10 %FSS
±15 %FSS
±5 %FSS
±15 %FSS
Includes pressure non-linearity (BFSL), pressure hysteresis and non-repeatability. Thermal errors are not included.
Includes zero error, span error, thermal effect on zero, thermal effect on span, thermal hysteresis, pressure-non-linearity, pressure
hysteresis and non-repeatability.
Safety and Productivity Solutions
3
Heavy Duty Pressure Transducers
MLH Series, 6 bar to 550 bar | 50 psi to 8000 psi
Figure 1. Operating and Temperature Compensation for All Regulated Output Options
Operating Temperature (°C)
125
124
123
122
121
120
119
118
117
116
Operating and Temperature
Compensated Area
for Regulated Output
6
8
10
12
14
16
18
20
22
24
26
28
30
Supply Voltage (Vdc)
Note: Dot indicates the maximum operating temperature of 125 °C [257 °F] with a 24 V supply.
Figure 2. Operating and Temperature Compensation for 4 mA to 20 mA Output
125
120
115
110
105
100
95
90
85
80
75
70
65
60
Operating Temperature (°C)
10 Ohm
Load
250 Ohm
Load
Operating and Temperature
Compensated Area
for 4 mA to 20 mA Output
6
8
10
12
14
16
18
20
22
24
26
28
30
Supply Voltage (Vdc)
Note: The operating area is extended with a 250 Ohm resistor. Higher loads extend the operating area. Dot indicates the maximum
operating temperature when using a 24 V supply and a 250 Ohm resistor.
Figure 3. Example Mounting Dimensions (Electrical Termination “B” Shown. For reference only. mm/(in).)
Pin/Wire Colors
Pin
a
b
c
Voltage
+ excitation
output
common
Current
+ excitation
- excitation
no connection
A variety of pressure ports and electrical
termination connection options are available.
Refer to the Figure 4 for possible combinations.
Contact your Honeywell representative for
details.
4
Safety and Productivity Solutions
Heavy Duty Pressure Transducers
Figure 4. Nomenclature and Order GuideE
MLH Series, 6 bar to 550 bar | 50 psi to 8000 psi
For example,
MLH150PSB01B
defines an MLH Series Heavy Duty Pressure Transducer, 150 psi pressure range, sealed
gage pressure reference, Metri-Pack 150 electrical connector type, 1/4-18 NPT pressure port type, 4 mA to 20 mA output.
Series
1
MLH
Pressure Transducer
Pressure Range
bar
psi
MLH 150 P S B 01 B
Heavy Duty
Output Signal
A
0.5 Vdc to 4.5 Vdc ratiometric from
5 Vdc excitation
4 mA to 20 mA
1 Vdc to 6 Vdc regulated
0.25 Vdc to 10.25 Vdc regulated
0.5 Vdc to 4.5 Vdc regulated
1 Vdc to 5 Vdc
006
010
016
025
040
060
100
160
250
350
500
550
6
10
16
25
40
60
100
160
250
350
500
550
050
100
150
200
250
300
500
01K
02K
03K
05K
08K
50
100
150
200
250
300
500
1000
2000
3000
5000
8000
B
C
D
E
G
Pressure Port Type
01
1/4-18 NPT
06
1/8-27 NPT
09
Female Schrader (SAE J512)
11
1/2-14 NPT
13
R 1/4-19 BSPT (ISO 7-1 tapered thread)
19
R 1/8-28 BSPT (ISO 7-1 tapered thread)
7/16-20 UNF 1/4 inch 45° Flare
Unit
B
bar
P
psi
Pressure Reference
G
S
Gage
Sealed Gage
2
Electrical Connector Type
B
C
D
G
H
L
M
P
T
Metri-Pack 150
3
Mating Connector
3
Hirschmann (mates with G4W1F)
M12 x 1 (Brad Harrison micro)
DIN 43650-C, 8 mm male
AMP Superseal 1.5
4
Cable (24 AWG,1 meter)
Cable (24 AWG, 3 meter)
Flying leads (20 AWG, 6 in)
Deutsch DTM04-3P (integral)
4
1
Not all catalog listing combinations are available. Custom
products are available. Please contact Honeywell.
Sealed gage option is only available in pressure ranges at
or above 8 bar | 100 psi.
Metri-Pack 150 mating connectors with shielded cable and
22 AWG wire are available from Honeywell. Order part
no. 3685301 for 1 m [3.2 ft] cable length and part no.
3685302 for 3 m [9.8 ft] cable length.
Available with Output Signal
A
only.
2
3
Safety and Productivity Solutions
5
