750PEx
Pressure Modules
Instruction Sheet
Introduction
The Fluke 750PEx Series Pressure Modules (the Product)
are to be used with Fluke intrinsically safe calibrators such as
the 718Ex.
The Product measures pressure with an internal
microprocessor compensated sensor. It receives power from
and sends digital information to the Fluke calibrator.
Gage pressure modules have one pressure tting and
measure pressure with respect to atmospheric pressure.
Differential pressure modules have two pressure ttings and
measure the difference between the applied pressure on the
high tting versus the low tting. A differential pressure module
functions like a gage module when the low tting is open. The
absolute pressure modules measure pressure with respect to
an absolute vacuum. The vacuum pressure modules measure
negative pressure.
See the Users Manual for your specic Fluke calibrator for
operation instructions. Differential and Gage models are
shown in Figure 1.
Low
Differential
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Figure 1. Differential and Gage Pressure Modules
High
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Safety Information
A Warning identies conditions and procedures that are
dangerous to the user. A Caution identies conditions and
procedures that can cause damage to the Product or the
equipment under test.
Warning
To avoid injury due to the release of high-pressure uid:
● Use only adapters and ttings rated to withstand the
appropriate pressure. Ensure that all adapters and
ttings are securely connected.
● Never exceed the specied BURST PRESSURE for the
Product.
● To avoid a violent release of pressure in a pressurized
system, shut off the isolation valve and slowly bleed
off the pressure before you attach or remove the
pressure module from the pressure line.
● Do not alter the Product and use only as specied,
or the protection supplied by the Product can be
compromised.
Ex-Hazardous Areas
The Product has been designed for use in Ex-Hazardous
Areas. These are areas where potentially ammable or
explosive vapors may occur. These areas are referred to
as hazardous (classied) locations in the United States, as
Hazardous Locations in Canada, as Potentially Explosive
Atmospheres in Europe and as Explosive Gas Atmospheres
by most of the rest of the world. The Product is designed as
intrinsically safe. This means that connecting the Product to
equipment that is used within intrinsically-safe circuits will not
cause an ignition-capable arc as long as the entity parameters
are suitably matched.
Warning
To prevent re, explosion, or personal injury:
● Check entity parameters before making any
connections to this device.
● Use only specied replacement parts or Intrinsic
Safety can be impaired.
● Precautions are required to ensure that a chargegenerating mechanism is unlikely to be present,
and/or discharge to earthed metal is improbable.
The exposed metal parts are not earthed and have
a capacitance of more than 3 pF with respect to an
earthed conductor. If a charge-generating mechanism
is present, an incendive level of charge could migrate
to these metal parts and subsequently discharge to
earthed metal.
Table 1. Symbols
Symbol Meaning
WARNING. RISK OF DANGER.
Direct Current
Consult user documentation.
Conforms to European Union directives.
Conforms to relevant South Korean EMC
Standards.
Certied by CSA Group to North American safety
standards.
Pressure (found on Fluke calibrators)
f
Conforms to relevant Australian EMC standards.
Conforms to the European Explosive
(
Atmospheres (ATEX) directive.
Medium compatibility: 316 Stainless Steel,
Medium compatibility: noncorrosive gasses.
This product complies with the WEEE Directive
(2002/96/EC) marking requirements. The
afxed label indicates that you must not
discard this electrical/electronic product in
domestic household waste. Product Category:
With reference to the equipment types in
the WEEE Directive Annex I, this product is
classed as category 9 “Monitoring and Control
Instrumentation” product. Do not dispose of this
product as unsorted municipal waste.
Mechanical Damage Prevention
Caution
To avoid Product damage, never apply more than 10 lb-ft
of torque between the pressure module ttings or
between the ttings and the body of the module. Always
apply appropriate torque between the pressure module
tting and connecting ttings or adapters.
Over Pressure Damage Prevention
Caution
To avoid Product damage:
● Use the Product only with specied media as shown
on the Product label to avoid Product damage from
corrosion.
● To avoid product damage do not apply pressure in
excess of 120 % of the specied upper limit.
Figure 2 shows correct and incorrect ways to use a wrench to
apply torque to the pressure module tting.
RANGE
10
0
k
P
a
hhb002.eps
Figure 2. Applying Torque
Recommended Measurement
Technique
For best results, before you zero the Product or take
measurements, pressurize the Product to full scale and then
vent to zero pressure (atmosphere).
Note
Low-range pressure modules may be sensitive to gravity.
For best results, pressure modules 30 psi and below should
be held at the same physical orientation from the time they
are zeroed until the measurement is complete.
PN 4562480 September 2017
© 2017 Fluke Corporation. Product specications are subject to change
without notice. All rights reserved.
Box Contents
The Product package should contain the listed items below. If
it does not, contact Fluke immediately. See “Contact Fluke”.
● Pressure module
● 1/8 NPT male to 1/4 NPT male adapter
● 1/8 NPT male to 1/4 BSP male adapter
● 1/8 NPT male to M20 male adapter
● O-RING,(-111) CAST URETHANE
● Certicate of calibration
● User documentation packet
Pressure Calibration Kit
The optional Fluke 700PCK (Pressure Calibration Kit)
accessory lets you calibrate the pressure modules at
your facility with your precision pressure standards. A
pressure calibrator or dead weight tester that is at least
4X more accurate than the pressure module under test is
recommended.
Performance Test
If you need to check that the pressure module meets its
accuracy specication, use a dead weight tester or suitable
pressure calibrator. The accuracy of the dead weight tester
or pressure calibrator should be signicantly better than the
Product pressure specication. Proceed as follows to verify
that a pressure module is operating within specication:
1. Read the pressure value with no externally applied
pressure to make sure the 0 % of scale is correct. When
reading the pressure, press the ZERO key to remove
any zero offset.
2. Connect the pressure module to a dead weight tester.
3. Set the dead weight tester to 20 % of the pressure
module’s full scale value.
4. Make sure the reading agrees with the dead weight
tester value within the specications.
5. Set the dead weight tester to 40, 60, 80, and 100 % of
full scale and compare the respective readings.
750 Model Number Parameter/Range
750P01Ex 0 inch to 10 inch H2O (0 to 25 mBar) 30 inH2O 3X NONCORROSIVE GASSES NONCORROSIVE GASSES ±0.1 % ±0.2 % ±0.3 % ±0.15 % ±0.25 %
750P24Ex 0 psi to 15 psi (0 to 1 Bar) 60 4X Stainless Steel SS-316 NONCORROSIVE GASSES ±0.0175 % ±0.035 % ±0.045 % ±0.03 % ±0.04 %
750P05Ex 0 psi to 30 psi (0 to 2 Bar) 120 4X Stainless Steel SS-316 N/A ±0.0175 % ±0.035 % ±0.045 % ±0.03 % ±0.04 %
750P06Ex 0 psi to 100 psi (0 to 7 Bar) 400 4X Stainless Steel SS-316 N/A ±0.0175 % ±0.035 % ±0.045 % ±0.03 % ±0.04 %
750P27Ex 0 psi to 300 psi (0 to 20 Bar) 1200 4X Stainless Steel SS-316 N/A ±0.0175 % ±0.035 % ±0.045 % ±0.03 % ±0.04 %
750P09Ex 0 psi to 1500 psi (0 to 100 Bar) 4500 3X Stainless Steel SS-316 N/A ±0.0175 % ±0.035 % ±0.045 % ±0.03 % ±0.04 %
750P29Ex 0 psi to 3000 psi (0 to 200 Bar) 9000 3X Stainless Steel SS-316 N/A ±0.0175 % ±0.035 % ±0.045 % ±0.03 % ±0.04 %
750PA4Ex 0 psia to 15 psia (0 to 1 Bar) 60 4X Stainless Steel SS-316 N/A ±0.03 % ±0.06 % ±0.07 % ±0.05 % ±0.06 %
1. Total uncertainty, % of full span for temperature range 0°C to +50°C, one year interval. Total uncertainty, 1.0% of full span for temperature range -10°C to 0°C, one
year interval. No 6 month specication available for range -10°C to 0°C.
2. “NONCORROSIVE GASSES” indicates dry air or non-corrosive gas as compatible media. “Stainless Steel 316-SS” indicates media compatible with Type 316
Stainless Steel.
3. Specications % of Full Span unless otherwise noted.
750 Burst
Pressure (psi)
Specications
Mechanical Specications
Size (H X W X L) .......45 mm X 94 mm X 110 mm
(1.77 in X 3.70 in X 4.33 in)
Weight . ..............292 g (10.3 oz)
Physical Interface.......Serial Connector, Pressure Port(s)
Environmental Specications
Operating Temperature...-10 °C to +50 °C (14 °F to 122 °F)
Storage Temperature ....-20 °C to +60 °C (-4 °F to 140 °C)
Operating Humidity......Non condensing (<10 °C) (<50 °F)
90 %RH (10 °C to 30 °C)
(50 °F to 86 °F)
75 %RH (30 °C to 40 °C)
(86 °F to 104 °F)
45 %RH (40 °C to 50 °C)
(104 °F to 122 °C)
Operating Altitude ......2000 m (6,561 ft)
Storage Altitude ........12 000 m (45 700 ft)
Ingress Protection.......IEC 60529: IP52 (not included in
the third party certication)
Compliance Markings
( II 1 G
SIRA 16ATEX2383X
IECEx SIR 16.0118X
Ex ia IIC T4 Ga
CIass I, Division 1, Groups A-D,T4
CIass I, Zone 0, AEx ia IIC T4 Ga
Ui 7.5V, Ii 200mA, Pi 0.375W, Ci 5.8 uF, Li 6.0 uH
Ex Certication by Fluke Corporation, Everett, WA USA
Burst Rating
0344
Hi Side Media Compatibility
Pressure Module Ranges
[2]
Lo Side Media Compatibility
Compliance
Safety ................IEC 60079-0, IEC 60079-11
IEC 61010-1: Pollution Degree 2
Electromagnetic Compatibility
International ...........IEC 61326-1: Basic
Electromagnetic Environment;
CISPR 11: Group 1, Class A
Group 1: Equipment has intentionally generated and/or
uses conductively-coupled radio frequency energy that is
necessary for the internal function of the equipment itself.
Class A: Equipment is suitable for use in all establishments
other than domestic and those directly connected to a
low-voltage power supply network that supplies buildings
used for domestic purposes. There may be potential
difculties in ensuring electromagnetic compatibility in other
environments due to conducted and radiated disturbances.
Caution: This equipment is not intended for use in
residential environments and may not provide adequate
How to Contact Fluke
To contact Fluke or locate a Service Center for parts, call one
of the following telephone numbers:
● Technical Support USA: 1-800-44-FLUKE
(1-800-443-5853)
● Calibration/Repair USA: 1-888-99-FLUKE
(1-888-993-5853)
● Canada: 1-800-36-FLUKE (1-800-363-5853)
● Europe: +31 402-675-200
● Japan: +81-3-6714-3114
● China: +86-400-921-0835
● Singapore: +65-6799-5566
● Anywhere in the world: +1-425-446-5500
Or, visit Fluke’s website at www.uke.com.
To register your product, visit http://register.uke.com.
To view, print, or download the latest manuals or manual
supplement, visit http://us.uke.com/usen/support/manuals.
protection to radio reception in such environments.
Korea (KCC) .......................................Class A Equipment
(Industrial Broadcasting & Communication Equipment)
Class A: Equipment meets requirements for industrial
electromagnetic wave equipment and the seller or user
should take notice of it. This equipment is intended for use
in business environments and not to be used in homes.
USA (FCC) .........................................47 CFR 15 subpart B.
This product is considered an exempt device per clause
15.103.
[3]
Reference Uncertainty
[2]
4. Reference Uncertainty is the specication for as left data for 24 hours.
5. Burst rating specication refers to the multiplier times full scale of the module for the rated burst pressure.
(23 ± 3 °C)
[4]
Total Uncertainty 1 year
(15-35 °C)
Total Uncertainty 1 year
(0-50 °C)
LIMITED WARRANTY AND LIMITATION OF LIABILITY
This Fluke product will be free from defects in material and
workmanship for three years from the date of purchase.
This warranty does not cover fuses, disposable batteries,
or damage from accident, neglect, misuse, alteration,
contamination, or abnormal conditions of operation or
handling. Resellers are not authorized to extend any other
warranty on Fluke’s behalf. To obtain service during the
warranty period, contact your nearest Fluke authorized
service center to obtain return authorization information, then
send the product to that Service Center with a description of
the problem.
THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER
WARRANTIES, SUCH AS FITNESS FOR A PARTICULAR
PURPOSE, ARE EXPRESSED OR IMPLIED. FLUKE IS
NOT LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
OR CONSEQUENTIAL DAMAGES OR LOSSES, ARISING
FROM ANY CAUSE OR THEORY. Since some states or
countries do not allow the exclusion or limitation of an implied
warranty or of incidental or consequential damages, this
limitation of liability may not apply to you.
Fluke Corporation Fluke Europe B.V.
P.O. Box 9090 P.O. Box 1186
Everett, WA 98206-9090 5602 BD Eindhoven
U.S.A. The Netherlands
11/99
[1]
Total Uncertainty 6 month
(15-35 °C)
Total Uncertainty 6 month
(0-50 °C)
[1]