Fluke 750P - User Manual

750P/750R
Pressure Modules
Instruction Sheet
Introduction
The Fluke 750P/750R Series Pressure Modules (the Product)
let you measure pressure with a wide range of Fluke
calibrators. These calibrators include but are not limited to the:
● 701 and 702 Documenting Process Calibrator
● 717 Series Pressure Calibrators
● 718 Series Pressure Calibrators
● 719 Portable Pressure Calibrator
● 719Pro Pressure Calibrator
● 721 Pressure Calibrator
● 725 Multifunction Process Calibrator
● 726 Multifunction Process Calibrator
● 741B, 743B, 744 Documenting Process Calibrator
● 753, 754 Documenting Process Calibrator
● 3130 Portable Pneumatic Pressure Calibrator
● 525B Temperature/Pressure Calibrator
● 7526A Precision Process Calibrator
● 5520A and 5522A Multi-Product Calibrator
While the 750P provides basic pressure measurement
with various Fluke calibrators, the 750R provides similar
functionality with reference-grade accuracy. However on
certain calibrators with limited display resolution this may
impair the precision of pressure measurement. See Pressure
Module Ranges chart for more information.
The Product measures pressure with an internal
microprocessor compensated sensor. It receives power from
and sends digital information to the Fluke calibrator.
PN 4387748 December 2013
© 2013 Fluke Corporation. Product specications are subject to change
without notice. Printed in USA. All rights reserved.
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 specic Fluke calibrator for
operation instructions. Differential and Gage models are
shown in Figure 1.
hhb001.jpg
Figure 1. Differential and Gage Pressure Modules
Safety Information
A Warning identies conditions and procedures that are
dangerous to the user. A Caution identies 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 specied 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.
Mechanical Damage Prevention
Caution
To avoid Product damage, never apply more than 10 ft-
lbs 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 specied 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 specied upper limit.
Figure 2 shows correct and incorrect ways to use a wrench to
apply torque to the pressure module tting.
hhb002.eps
Figure 2. Applying Torque
Table 1. Symbols
Symbol Meaning

Risk of Danger. Important. See Manual.

Conforms to European Union directives.

Conforms to relevant North American Safety
Standards.

Conforms to relevant South Korean EMC
Standards.
f
Pressure (found on Fluke calibrators)

Conforms to relevant Australian EMC
requirements.

This product complies with the WEEE
Directive (2002/96/EC) marking
requirements. The afxed 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. Go to Fluke’s
website for recycling information.
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.
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
● Certicate of calibration
● User documentation packet
100 kPa
RANGE
15 PSID/G
PRESSURE MODULE
700
P
04
1 bar100 kPa
RANGE
Low
High
Differential
100 PSIG
PRESSURE MODULE
700
P
06
7 bar700 kPa
RANGE
Gage

Summary

Introduction to Pressure Modules

Pressure Modules Overview

Describes different types of pressure modules (Gage, Differential, Absolute, Vacuum) and their function.

Safety Information and Precautions

Highlights critical safety warnings for handling high-pressure fluids and connecting modules.

Mechanical and Over Pressure Prevention

Details cautions against applying excessive torque and over-pressurizing modules.

Recommended Measurement Technique

Advises on best practices for zeroing and taking pressure measurements for accuracy.

Box Contents

Lists the items expected to be included in the product package.

Pressure Calibration Kit and Performance

Pressure Calibration Kit Overview

Describes the optional kit for calibrating modules at your facility with precision standards.

Performance Test Procedure

Step-by-step guide to verify pressure module accuracy using a dead weight tester.

Product Specifications and Compliance

Mechanical Specifications

Details physical dimensions, weight, and interface of the pressure modules.

Environmental Specifications

Outlines operating and storage temperature, humidity, and altitude limits.

Compliance and Approvals

Lists agency approvals (CE, SP) and EMC compliance standards.

Contact and Warranty Information

How to Contact Fluke

Provides telephone numbers and website for technical support and service.

Limited Warranty and Liability

Details the product's three-year warranty and limitations.

Pressure Module Ranges and Uncertainties

Pressure Module Model Numbers and Ranges

Table listing various Fluke pressure module models with their pressure ranges and parameters.

Media Compatibility

Specifies compatible media (gases, SS-316) for different pressure module models.

Uncertainty Specifications

Details reference uncertainty and total uncertainty over time and temperature ranges.

Fluke 750P Specifications

General

Category	Pressure Modules
Compatibility	Fluke 750 Series Documenting Process Calibrator
Material	Stainless Steel
Pressure type	Differential
Wetted Materials	Stainless Steel