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Fluke 750P

Series Pressure

Modules

Precision pressure measurement for

75X and 720 series calibrators

The 750P Series Pressure Modules are the ideal pressure

modules to enable gage, differential and absolute pressure

measurement with Fluke 750 and 740 series DPCs and 725,

726 MPCs to measure pressure.

• 0.025 % reference uncertainty

• 6-month and 1-year specifications

• Temperature compensated 0 °C to 50 °C

• Digital communication to calibrators, no analog

losses or errors

• Broad selection of ranges

• Gage, differential, dual range, absolute and vacuum

measurement models

A complete family of pressure modules

A family of 48 pressure modules covers pressure

calibrations from 0 to 1 in H20 to 10000 psi (2.5 mBar

to 690 bar).

Gage pressure modules have one pressure fitting

and measure the pressure with respect to atmospheric

pressure. Differential pressure modules have two pres-

sure fittings and measure the difference between the

applied pressure on the high fitting versus the low

fitting. Each module is clearly labeled for range, over-

pressure and media compatibility. All modules include

NPT, metric (BSP) and M20 adapters.

Quick and easy measurements

Fluke 750P Series Pressure Modules are easy to use.

To measure pressure, connect the pressure module to

a pressure source or hand pump and then connect the

pressure module cable to the calibrator. Apply pressure

from the pressure source and it is displayed digitally

on the calibrator. At the touch of a button, the pressure

may be displayed in up to 11 different engineering

units. When used with the 750 Series Documenting

Process Calibrators, pressure readings can be date/time

stamped and stored electronically for later retrieval.

This saves time, eliminates errors, and supports com-

pliance with quality standards and regulations.

Technical Data

2 Fluke Corporation Fluke 750P Series Pressure Modules

Pressure module performance

and technology

Fluke 750P Series pressure modules are highly

accurate, with specifications that apply from 0 °C to

50 °C (32 °F to 122 °F), a feature that sets them apart

from other pressure calibrators. Many ranges have

total uncertainties of 0.04

% of full scale and reference

uncertainties of 0.01

% of full scale (see specification

table).

This performance is possible through the innova-

tive application of mathematics and micro-processor

power. Fluke pressure modules have silicon piezo-

resistor sensors which consist of a resistive bridge

fabricated in a silicon diaphragm. Pressure applied to

the diaphragm causes a change in the balance of the

bridge which is proportional to the applied pressure.

The bridge balance change is not linear and is very

sensitive to temperature. However, since these effects

are quite stable with time and with repetitive changes

of condition, the sensors are carefully characterized.

During manufacture, Fluke pressure module sensors

are characterized by reading temperature and pressure

at multiple points. A least-squares regression is used

to calculate the coefficients of a polynomial expression

for pressure. The coefficients, unique to that pressure

module, are stored in the module’s memory.

Each module has its own microprocessor, allowing

it to run the measurement circuitry and to commu-

nicate digitally with a calibrator. When connected to

the calibrator, the modules coefficients are uploaded

from the pressure module to the calibrator. Then, as

pressure measurements are made, raw sensor values

for pressure and temperature are digitally loaded to

the calibrator, where the raw sensor values and coef-

ficients are manipulated to derive and display the

pressure reading.

This innovative technique provides several benefits:

1. Digital communication eliminates errors due to poor

connections and electrical interference.

2. The modules are inherently temperature-

compensated from 0 °C to 50 °C (32 °F to 122 °F).

3. The modules are fully interchangeable because

all measurements are completed in the pres-

sure module itself and then communicated to the

calibrator in digitized form. Modules are calibrated

independently of the calibrator, and can be used

with any 740, 750 or compatible 720 or 710 series

calibrator. Each module has its own serial number

to maintain independent traceability.

Sensor protection in isolated modules

Many of these modules (see table) incorporate a stain-

less steel diaphragm to isolate the sensor. With these

modules, any medium that is compatible with stainless

steel can be used on the high side of the module.

Rugged construction

A urethane overmolding protects against shock if a

module is accidentally dropped and also seals against

dirt, dust, and moisture. Pressure connections are

1/8

” NPT female connection. A ¼” NPT Male, ¼” BSP/

ISO and M20 male adapter are also provided with each

pressure module.

Convenient setup

A one-meter cable between the pressure module and

calibrator reduces the length of connecting tubing to

the pressure source. The remote pressure head also

provides an extra margin of safety and convenience

by removing the calibrator and operator from the

pressure source in the event or need for semi-remote

measurements.

3 Fluke Corporation Fluke 750P Series Pressure Modules

Image Description Application

Fluke 700PTP-1 Pneumatic Test Pump

The Fluke 700PTP-1 is a handheld pressure

pump designed to generate either vacuum

to -13 psi/-0.9 bar or pressure to

600 psi/40 bar

The Fluke 700PTP-1 has two pressure ports:

• ¼” NPT female parallel thread fitting for

the reference gauge or pressure module

• ¼” NPT female parallel thread fitting for

the unit under test

The Fluke 700PTP-1 features an integral pressure adjustment vernier

which varies the pressurized volume by 2.0 cc over approximately

eleven turns of the vernier knob. The pressure variation achievable with

the vernier will depend on the nominal pressure and total pressurized

volume, but with a minimum volume and maximum pressure, the vernier

provided 600 ± 20 psi adjustment range. With a minimum volume and

no pressure applied, the vernier can also be used to provide a 0 to 70˝

H2O range. Larger volumes will provide a smaller range of adjustment,

but greater resolution. The length of the stroke can be adjusted to limit

the maximum output pressure. Maximum output pressure is adjustable

from 2.5 psi to 600 psi.

For use with: Fluke 700 and 750P Series Pressure Modules and the

Fluke 710 and 720 Series Pressure Calibrators

Fluke 700HTP-2Hydraulic Test Pump

The Fluke 700HTP-1 is designed to generate

pressures up to 10000 psi/700 bar. The

Fluke 700HTP-1 has two pressure ports:

• ¼” NPT female parallel thread fitting for

the reference gauge or pressure module

• ¼” NPT female parallel thread fitting for

the unit under test

Note: The user must provide a hose with appropriate end

fittings from this port to the unit under test.

This pump can provide up to 10000 psi using distilled water or mineral-

based hydraulic oil. The pump is operated by pumping several strokes

to prime the system, then switching to high pressure mode when the

resistance increases. An integral pressure adjustment vernier knob varies

the pressurized volume by 0.6 cc. The pressure variation achievable with

the vernier will depend on the nominal pressure and total pressurized

volume, but with a minimum volume, the vernier provided 150 psi to

3000 psi (at 150 psi nominal) and 3000 psi to10000 psi (at 3000 psi

nominal) adjustment ranges. With a minimum volume and no pressure

applied, the vernier can also be used to provide a 0 to 1.7 psi range.

Larger volumes will provide a smaller range of adjustment, but greater

resolution.

For use with: Fluke 700 and 750P Series Pressure Modules and the

Fluke 710 and 720 Series Pressure Calibrators

Fluke 700LTP-1 Low-Presure Test Pump

The Fluke 700LTP-1 is a hand operated

pressure pump designed to generate either

vacuum to -12 psi/-.85 bar or pressures to

100 psi/6.9 bar. The Fluke 700LTP-1 has

two pressure ports with push fit connec-

tors. These push fit connectors, one for the

reference port for connection to a Fluke 700

Series Pressure Module and one to connect

to a unit under test, connect to the supplied

test hoses.

The Fluke 700LTP-1 is primarily intended for low pressure applications.

It features a fine adjust vernier with .00145 psi resolution at low pres-

sures. The pressure variation achievable with the vernier will depend on

the nominal pressure and total pressurized volume, but with minimum

volume and maximum pressure the vernier provides 30 psi ± 6 psi. The

adjustable pressure relief valve features a slow-bleed capability that

allows the user to slowly release pressure at a controlled rate to achieve

a desired pressure.

Fluke 700HTH-1 Hydraulic Test Hose

The Fluke 700HTH-1 Hydraulic Test Hose

is a 10000 psi, 700 bar working pressure

test hose. The hose uses self-sealing fittings

with easy finger tight connections.

The Fluke 700HTH-1 allows connections to a unit under test from a

Fluke 700HTP-1 hydraulic test pump in use with the Fluke 700 and

750P Series Pressure Modules. The 700HTH-1 is compatible with water

and non-corrosive oil.

Fluke 71X Hose Kit

The Fluke 71X hose kit includes (2) quick

disconnect fittings to connect to the 718 or

719, (3) 1-meter translucent hoses and one

BSP adapter.

For use with: Fluke 718 and 719 Pressure Calibrators

Fluke 700PRV-1 Pressure Relief Valve Kit

The Fluke 700PRV-1 consists of two relief

valves (1360 and 5450 psi) to be used with

the 700HTP-1 Hydraulic Test Pump. These

relief valves will protect the Fluke pressure

modules from damage due to over-pressur-

ization. 1/4 BSP male parallel thread to fit

Fluke 700HTP-1.

Repeatability ± 10 % of nominal setting. Multiturn adjustment screw to

set preload on internal disc springs.

For use with: Fluke 700HTP-1 Hydraulic Test Pump.

Fluke 700 PMP Pressure Pump

The Fluke 700PMP is a hand-operated pres-

sure pump to provide pressures up to

150 psi/1000 kPa. Output fitting is 1/8

FNPT.

Linear stroke of 1.6 in (4 cm). Multi-turn vernier for fine adjustment of

pressure. Includes controlled pressure bleed valve.

For use with: Fluke 700 and 750P Series Pressure Modules and the

Fluke 710 and 720 Series Pressure Calibrators.

Pressure accessories

4 Fluke Corporation Fluke 750P Series Pressure Modules

Model Parameter/

Range Burst

Rating6Hi Side

Media2Lo Side

Media2Reference

Uncertainty4Total

Uncertainty

1-year

(15-35 �C)

Total

Uncertainty

1-year1

Total

Uncertainty

6-month

(15-35 �C)

Total

Uncertainty

6-month1

Differential

750P00 0 to 1 in H2O

(0 to 2.5 mBar)

30X Dry Air Dry Air ±0.15 % ± 0.3 % ± 0.35 % ± 0.25 % ± 0.30 %

750P01 0 to 10 in H2O

(0 to 25 mBar)

3X Dry Air Dry Air ±0.1 % ± 0.2 % ± 0.3 % ± 0.15 % ± 0.25 %

750P02 0 to 1 psi

(0 to 70 mBar)

3X Dry Air Dry Air ±0.050 % ± 0.1 % ± 0.15 % ± 0.075 % ± 0.125 %

750P22 0 to 1 psi

(0 to 70 mBar)

3X 316 SS Dry Air ±0.050 % ± 0.1 % ± 0.15 % ± 0.075 % ± 0.125 %

750P03 0 to 5 psi

(0 to 350 mBar)

3X Dry Air Dry Air ±0.02 % ± 0.04 % ± 0.05 % ± 0.035 % ± 0.04 %

750P23 0 to 5 psi

(0 to 350 mBar)

4X 316 SS Dry Air ±0.02 % ± 0.04 % ± 0.05 % ± 0.035 % ± 0.04 %

750P04 0 to 15 psi

(0 to 1 bar)

3X Dry Air Dry Air ±0.0175 % ± 0.035 % ± 0.045 % ± 0.03 % ± 0.04 %

750P24 0 to 15 psi

(0 to 1 bar)

4X 316 SS Dry Air ±0.0175 % ± 0.035 % ± 0.045 % ± 0.03 % ± 0.04 %

Gage

750P05 0 to 30 psi

(0 to 2 bar)

4X 316 SS N/A ±0.0175 % ± 0.035 % ± 0.045 % ± 0.03 % ± 0.04 %

750P06 0 to 100 psi

(0 to 7 bar)

4X 316 SS N/A ±0.0175 % ± 0.035 % ± 0.045 % ± 0.03 % ± 0.04 %

750P27 0 to 300 psi

(0 to 20 bar)

4X 316 SS N/A ±0.0175 % ± 0.035 % ± 0.045 % ± 0.03 % ± 0.04 %

750P07 0 to 500 psi

(0 to 35 bar)

4X 316 SS N/A ±0.0175 % ± 0.035 % ± 0.045 % ± 0.03 % ± 0.04 %

750P08 0 to 1000 psi

(0 to 70 bar)

3X 316 SS N/A ±0.0175 % ± 0.035 % ± 0.045 % ± 0.03 % ± 0.04 %

750P09 0 to 1500 psi

(0 to 100 bar)

3X 316 SS N/A ±0.0175 % ± 0.035 % ± 0.045 % ± 0.03 % ± 0.04 %

750P2000 0 to 2000 psi

(0 to 140 bar)

3X 316 SS N/A ±0.0175 % ± 0.035 % ± 0.045 % ± 0.03 % ± 0.04 %

High

750P29 0 to 3000 psi

(0 to 200 bar)

3X 316 SS N/A ±0.0175 % ± 0.035 % ± 0.045 % ± 0.03 % ± 0.04 %

750P30 0 to 5000 psi

(0 to 340 bar)

3X 316 SS N/A ±0.0175 % ± 0.035 % ± 0.045 % ± 0.03 % ± 0.04 %

750P31 0 to 10000 psi

(0 to 700 bar)

2X 316 SS N/A ±0.0175 % ± 0.035 % ± 0.045 % ± 0.03 % ± 0.04 %

Absolute

750PA3 0 to 5 psia

(0 to 350 mBar)