Panametrics VeriDri User manual

panametrics.com 916-095 D
Dec 2021
VeriDri™
Moisture Transmitter
User’s Manual

panametrics.com
Copyright 2021 Baker Hughes company.
This material contains one or more registered trademarks of Baker Hughes Company and its subsidiaries
in one or more countries. All third-party product and company names are trademarks of their respective
holders.
VeriDri™
Moisture Transmitter
User’s Manual
916-095 D
Dec 2021

ii
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VeriDri™ User’s Manual iii
Preface
Information Paragraphs
Note: These paragraphs provide additional information about the topic which is helpful but is not essential to
proper completion of the task.
IMPORTANT: These paragraphs provide emphasis to instructions that are essential to proper setup of the equipment.
Failure to follow these instructions carefully may cause unreliable performance.
Safety Issues
Auxiliary Equipment
Local Safety Standards
The user must make sure that he operates all auxiliary equipment in accordance with local codes, standards,
regulations, or laws applicable to safety.
Working Area
Qualification of Personnel
Make sure that all personnel have manufacturer-approved training applicable to the auxiliary equipment.
Personal Safety Equipment
Make sure that operators and maintenance personnel have all safety equipment applicable to the auxiliary
equipment. Examples include safety glasses, protective headgear, safety shoes, etc.
Unauthorized Operation
Make sure that unauthorized personnel cannot gain access to the operation of the equipment.
WARNING! Indicates a potentially hazardous situation which can result in serious personal injury or
death, if it is not avoided.
CAUTION! Indicates a potentially hazardous situation which can result in minor or moderate injury
to personnel or damage to the equipment, if it is not avoided.
WARNING! It is the responsibility of the user to make sure all local, county, state and national
codes, regulations, rules and laws related to safety and safe operating conditions are
met for each installation.
WARNING! It is the responsibility of the user to make sure all local, county, state and national
codes, regulations, rules and laws related to safety and safe operating conditions are
met for each installation.
WARNING! Make sure that power to the auxiliary equipment is turned OFF and locked out before
you perform maintenance procedures on the equipment.

Preface
iv VeriDri™ User’s Manual
Environmental Compliance
Waste Electrical and Electronic Equipment (WEEE) Directive
Baker Hughes is an active participant in Europe’s Waste Electrical and Electronic Equipment (WEEE) take-back
initiative, directive 2012/19/EU.
The equipment that you bought has required the extraction and use of natural resources for its production. It may
contain hazardous substances that could impact health and the environment.
In order to avoid the dissemination of those substances in our environment and to diminish the pressure on the
natural resources, we encourage you to use the appropriate take-back systems. Those systems will reuse or recycle
most of the materials of your end life equipment in a sound way.
The crossed-out wheeled bin symbol invites you to use those systems.
If you need more information on the collection, reuse and recycling systems, please contact your local or regional
waste administration.
Visit www.bakerhughesds.com/health-safety-and-environment-hse for take-back instructions and more
information about this initiative.

VeriDri™ User’s Manual v
Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
2. Sample System Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
3. Inserting the Transmitter into the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4. Making the Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5. Operating the Transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5.1 Powering Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5.2 Error Handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6. Cleaning the Transmitter Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.1 Removing the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.2 Soaking the Sensor and Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.3 Evaluating the Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
7. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.1 General Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.2 Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.3 Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.4 Moisture Sensor Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Contents
vi VeriDri™ User’s Manual
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VeriDri™ User’s Manual 1
Introduction
1. Introduction
The Panametrics VeriDriTM is a low-cost, loop-powered transmitter that provides accurate dew/frost point
measurements covering an overall range of –110o to 40°C (-166o to 104oF). It can also be provided to cover a number
of moisture ranges from 0 to 10,000 PPMv.
The VeriDri is supplied with one 4 to 20 mA analog output that is factory-configured for a specified range.
The VeriDri is easy to install, operate and maintain. This manual includes the following sections:
• “Sample System Guidelines” on page 1
• “Inserting the Transmitter into the System” on page 2
• “Making the Wiring Connections” on page 3
• “Operating the Transmitter” on page 4
• “Cleaning the Transmitter Probe” on page 5
• “Specifications” on page 7
2. Sample System Guidelines
You can install the VeriDri transmitter either into a sample system or directly into the process. Panametrics
recommends that the unit be installed in a sample system to protect the probe from coming into contact with
damaging elements in the process.
Before constructing a sample system, you should consult a Panametrics Applications Engineer and adhere to the
guidelines below. See Figure 1 on page 2 for an example of a suitable sample system.
• See “Specifications” on page 7 for The VeriDri dimensions and other requirements.
• Sample systems should be kept very simple.
• The transmitter should be installed so it is perpendicular to the sample inlet.
• The sample system should contain as few components as possible, and all or most of those components
should be located downstream from the measurement location.
• If possible, you should use stainless steel components for all wetted parts.
• Sample system components should not be made of any material that will affect measurement. Most common
filters and pressure regulators are not suitable for sample systems because they have wetted parts which may
absorb or release components (such as moisture) into the sample system. They may also allow ambient
contamination to enter the sample system.

Inserting the Transmitter into the System
2 VeriDri™ User’s Manual
Figure 1: Sample System Example
3. Inserting the Transmitter into the System
Complete the steps below to install the VeriDri:
1. Make sure the sintered or sheet stainless-steel shield is in place. The shield protects the aluminum oxide sensor
from damaging elements in the process.
2. The probe is mounted into the process via the 3/4-16 straight male thread located on the probe. Thread the
probe end of the transmitter into the process/sample system fitting, making sure not to cross thread it.
CAUTION! If you are mounting the VeriDri directly into the process line, you must consult
Panametrics for proper installation instructions and precautions before beginning the
following procedure.
Sample
Cell
Sample
Inlet
Sample
Outlet
Vent
Shield
3/4-16 UNF-2A