Fluke PV350 Operating Manual

PV350

Pressure/ Vacuum Transducer Module

Instruction Sheet

ETRIC

M

PV350

ENGLISH ZE

PRESSU

cmHg

kPa

OFF

RE / VACUUM MOD

inHg

psi

ULE

®

Introduction

The PV350 Pressure/Vacuum Transducer Module (the module)
measures gauge pressure; the difference between atmospheric
(barometric) pressure and the pressure (or vacuum) applied to the
pressure port on the transducer. It then converts that measurement to
1 mV dc per unit. A module and a high-performance digital multimeter
(DMM) with min/max function become a datalogger capable of measuring
peak high and peak low.

Box Contents

• Pressure/Vacuum Transducer Module

• 1/4 in. male flare to 1/4 in. female pipe thread connector

• 9 V alkaline battery

• Instruction Sheet

• Quick Reference Guide

Safety Information

Warning

To avoid eye injury, always wear approved safety glasses
when working with this instrument.

To avoid injury from pressure explosion:

• Be sure that pressure is removed before

disconnecting any hoses or tubing from the PV350
transducer.

• Follow accepted safety procedures for systems on

which pressure or vacuum measurements are made.

• Make sure the PV350 is serviced by a qualified

technician.

PN 926873 May 1992 Rev. 6, 5/15

© 1999-2015 Fluke Corporation, All rights reserved.
All product names are trademarks of their respective companies.



• To ensure that the module is used safely, follow all

safety and operating instructions in this Instruction
Sheet. If the module is not used as described in this
Instruction Sheet, the safety features of the module
might be impaired.

• Do not use the module if the module or fittings look

damaged, or if you suspect that the module is not
operating properly.

•  This symbol on the module indicates that an

operator should refer to an explanation in the
instruction sheet.

• Follow accepted safety procedures for the systems on

which pressure or vacuum measurements are being
made.

Materials Compatibility

The PV350 is compatible with industrial gases and liquids that are
compatible with 316 stainless steel. To determine the compatibility of a
liquid or gas, refer to the manufacturer's specifications. When making
measurements on more than one type of pressure system, make sure the
fluids or gases in those systems are compatible. If they are not,
contamination or damage to the system being measured may result.

Cleaning

Clean the module using a soft cloth and mild soap and water. Do not
immerse the PV350 in liquids.

Clean the transducer and connectors after each use with a cleaner
appropriate for the liquid or gas connected during measurement. Refer to
the manufacturer’s instructions for the proper cleaning material.

Measuring Pressure and Vacuum

Caution

The sensor diaphragm can be damaged by solid or sharp
objects. Never insert any object into the inlet port.

Clean the sensor immediately after use with appropriate
solvents (refer to the solvent manufacturer's instructions).

Note

Fluke recommends that Teflon sealing tape (or its equivalent)
be used in fitting threads to ensure good seals between the
PV350 and any hoses or fittings.

1. Plug the PV350 into the DMM (red polarity dot to volts input) and set
the multimeter to mV dc.

2. Check the battery voltage (see Testing the Battery).

3. Press the English/Metric button to select the desired units.

4. Slide the switch to the desired setting.

5. Before applying pressure, zero the module by turning the ZERO
potentiometer until the DMM displays zero. (Zero on the range you
will be using and rezero the DMM whenever the scale is changed.)