Dresser 5 User manual

Roots Meters & Instruments
MODEL 5 PROVER & SOFTWARE MANUAL

Table of Contents
1. Introduction ..................................................................................................1
1.1 Receiving and Inspection at time of delivery..........................................................1
1.2 General Information ......................................................................................1
1.3 Component List ............................................................................................2
1.4 Optional Accessories ......................................................................................5
1.5 Theory of Operation........................................................................................5
1.6 Precautions..................................................................................................5
1.7 Specifications (excluding Computer) ..................................................................7
2. Installing the Model 5 Prover Software ................................................................8
2.1 Minimum System Requirements ........................................................................8
2.2 Compatibility Issues ......................................................................................8
2.3 Software Installation ......................................................................................8
2.4 Verifying the Proper Files Are Loaded ................................................................9
2.5 Upgrade Notice ............................................................................................9
3. The Startup Screen and Help............................................................................10
3.1 The Startup Screen ......................................................................................10
3.2 The Help Directory........................................................................................10
4. Setting Prover Options ..................................................................................11
4.1 The Set Prover Options Screen ........................................................................11
4.2 Changing Units of Measure ............................................................................12
4.3 Editing Passwords ........................................................................................12
5. Configuring a Meter Test ................................................................................13
5.1 Prover Capacity ..........................................................................................13
5.2 Test Control Mode ........................................................................................13
5.3 Meter Output ..............................................................................................14
5.4 Drive Rate or Pulses Per Test (PPT) ..................................................................15
5.5 Test Volume................................................................................................16
5.6 Base Pressure Correction ..............................................................................16
5.7 Flow Rate ..................................................................................................16
5.8 Test Duration ..............................................................................................17
5.9 Selecting the Number of Test Repeats ................................................................17
5.10 Save, Close and Change ..............................................................................17

6. Equipment Setup ..........................................................................................18
6.1 Field Meter Setups ......................................................................................18
7. Running a Meter Test ....................................................................................24
7.1 Selecting a Preconfigured Test ........................................................................24
7.2 The Pretest Error Message Screen ....................................................................24
7.3 The Meter Test Screen ..................................................................................26
7.4 System Readouts ........................................................................................27
7.5 Calculated Values ........................................................................................28
8. Test Results and Reports ................................................................................29
8.1 Reviewing, Saving, and Printing Test Results ......................................................29
8.2 The Report Manager ....................................................................................29
9. Calibrating the Prover ....................................................................................31
9.1 Reaching the Prover Calibration Screen ..............................................................31
9.2 The Conversion Tool......................................................................................33
9.3 How to Calibrate the A/D Converter Check Point ....................................................33
9.4 How to Calibrate the Atmospheric Pressure Transducer ..........................................33
9.5 How to Calibrate the Master Meter Inlet Pressure Transducer ....................................34
9.6 How to Calibrate the Field Meter Inlet Pressure Transducer ......................................34
9.7 How to Calibrate the Master Meter Temperature Probe ............................................35
9.8 How to Calibrate the Field Meter Temperature Probe ..............................................35
9.9 How to Calibrate the Master Meter Outlet Pressure Transducer ..................................36
9.10 How to Calibrate the Field Meter Outlet Pressure Transducer ..................................36
10. Prover Maintenance ....................................................................................37
10.1 Master Meter Hours of Operation ....................................................................37
10.2 Prover Self Test..........................................................................................37
10.3 Master Meter Differential Pressure Test ............................................................38
10.4 System Leak Test........................................................................................38
10.5 Meter Purge ..............................................................................................40
10.6 Maintenance Recommendations......................................................................40
10.7 Maintenance Check List................................................................................41
11. Problem Identification and Resolution ..............................................................43
11.1 Common Operation Problems ........................................................................43
11.2 Troubleshooting Error Messages......................................................................44
11.3 Assistance & Service Procedure......................................................................46
11.4 Return Authorization Procedure ......................................................................46
Appendix ......................................................................................................47
Spare Parts List ..............................................................................................52
2 Year Warranty ..............................................................................................53

1
1. Introduction
1.1 Receiving and Inspection at time of delivery:
1. Check the packing list to account for all items received.
2. Inspect the shipping container for damage. Record any visible damage or shortages
on the delivery record.
3. File a claim with the carrier.
4. Notify your ROOTS® Prover supplier immediately.
Do not accept any shipment with evidence of mishandling without making an immediate inspection for
damage prior to signing the carrier’s delivery record. Do not attempt repairs or adjustments, as doing
so may be a basis for voiding all claims for warranty or insurance claim with carrier.
1.2 General Information
The Model 5 ROOTS Prover is an integrated computer controlled system designed for shop or field
proving of rotary and diaphragm-type positive displacement gas meters (80M for shop use only). The
Prover is designed for transfer proving utilizing air only as the test medium, and electric blowers mounted
on a manifold or a skid provide the test air flow (vacuum).
The Prover system consists of the following major components: Master Meter(s) as the measurement
reference standard; pressure and temperature Transducers; Blower(s); flexible hose(s); electronic cables
and accessories with a storage case; a Flow Rate Controller for automatic flow rate adjustment and test
sequencing; and computer software for calculations and presentation of the flow test data. The Prover also
has the unique capability to test ROOTS meters equipped with the Integral Micro Corrector (IMC/W2).
A personal computer (not included) is required to run the software.
The software program stores predetermined Field Meter test configurations. It performs all calculations
at the end of each test run and displays the pressure and temperature differentials, Field Meter proof,
Field Meter accuracy, and percent error. Test reports may be saved to diskette, the PC hard drive, and/or
may be printed. You can configure the software for Imperial or Metric display and storage of data.
The Model 5 10M, 2M/10M ROOTS Prover and Mobile 5M ROOTS Prover are portable units. They may be
transported into the field for on-site testing. The Prover is a precision instrument - operate and maintain
it in accordance with factory recommendations as outlined in this manual to ensure accurate and repeatable
results. Transport it with care and ensure that it is properly secured and covered for protection from moisture
and dirt.
The blowers are not explosion proof. Do not operate them when testing in a hazardous area.
Do not operate the Prover in the presence of explosive or flammable gasses or an explosion may result.
The Prover system is not designed for intrinsic safety.

2ROOTS®Model 5 Prover Software Manual
1.3 Component List
The following is a complete list and physical
description of the items available for the
Model 5 ROOTS®Prover. Your particular
order may or may not include all of the
components listed below. If any items that
you ordered are missing or damaged, call
the Customer Service Department at
Dresser Roots Meters & Instruments at
1-800-521-1114 or 832-590-2303.
1. Black Accessory Case –
A briefcase-sized, black container
used for storing Model 5 Prover
accessory equipment.
2. Prover Software –
1 Windows CD located in the lid of the black accessory case behind the foam padding.
It contains the necessary software for operating the Prover.
3. Computer Cable – An RS-232 capable data transmission quality cable with a
15-pin connector at one end and a 9-pin connector at the other end.
4. Field Meter Junction Box – A rectangular box, approximately 5 x 5 inches.
Attached is a 30 ft. cable with a round 12-pin connector at one end.
5. Field Meter Temperature Probe – A 6 in. long, 1/4 in. diameter silver tube
with a cable extending from it. The end of the cable has a 4-pin connector.
6. Manual Start/Stop Cable and Button – A cable with a 5-pin connector at one end
and a push button at the opposite end.
7. 25’ Power Cord
8. Pressure Lines – 1/4 in. diameter nylon tubing with compression nuts attached to each end.
There are four pressure lines - blue for Input, black for Output. One pair of blue and black lines
is for the Master Meter(s) and the other is for the field or test meter.
9. P&T (Pressure and Temperature) Adapter – A brass “T” assembly with a 1/4” NPT
threaded end, a compression fitting for the temperature probe and a Quick Disconnect for
the Pressure fitting.
10. Field Meter Pressure Adapter – An “L” shaped brass pipe fitting with a 1/4” NPT threaded
end and Quick Disconnect end that serves as a pressure-dampening device.
11. Instrument Drive (ID) Pulser – A small, aluminum, rectangular box with two 90 degree
angled metal feet protruding from the underside, and an L-shaped shaft that extends down
between the two metal feet. Included with the ID Pulser are two mounting clamps.
12 ID Pulser Cable – A cable with a 5-pin connector at either end.
13. Expandable Hole Plug – A device used to seal off unused openings in the Blower manifold
depending on options ordered.
14. Cam Lock Cap – A cam type cap to close off inlet of unused meter(s).
15. Hose Plug – A cam type plug to seal hose end.
16. Prover Hose – A flexible, ribbed hose with quick disconnects at each end.
17. Personal Computer (not included) – A laptop is required for operation of Prover.
See Minimum Requirements on page 8 for necessary specifications.
Figure 1: Model 5 ROOTS Prover

3
10M or 2M/10M
Inside Accessory Case
(All Provers)
5M/20M
Accessory
Case
Blower
Personal Computer
Master Meter(s)
Controller
Master Meter
J Boxes
Accessory Case
Blower(s)
M/M Cable
Prover Hose
Controller
Prover Hose
Personal Computer
Master Meter(s)
Throttle Valve
Cam Lock Cap

4ROOTS®Model 5 Prover Software Manual
10M/80M
Mobile 5
Blower
Controller
Master Meter
Junction Box
Master Meter
Throttle Valve
Controller
Master Meter(s)
Master Meter
Junction Box(s)
Prover Hoses

5
18. Controller – An aluminum or steel rectangular box with a 6 in. finned heat sink on the side
of the box and a number of sockets for electrical and computer connections.
19. Blowers -– Devices attached to the Prover cart, responsible for producing a source of
airflow during Prover testing.
20. Master Meter(s) – The reference meter (tertiary standard) with known performance
characteristics that is traceable to national and international standards. The Prover may be
purchased with one or two Master Meters.
21. Master Meter Cable – A cable containing a 6-pin connector at each end.
22. Master Meter Junction Box – A rectangular box mounted to the end cover of the
Master Meter(s).
23. Throttle Valve – An electrical actuator used to aid in the flow rate control for the prover.
1.4 Optional Accessories:
• Optical Scanner
• ROOTS 8C Meter Test Hardware Assembly
• ROOTS Series B3 Field CTR Pulser (MTR must be “Pulser Ready”)
• Acoustic Filter
• Inverter
• 3" Quick-disconnect Connector (Female)
• 3" Quick-disconnect Connector (Male)
• SmartProve™Cable
• USB Serial Port Converter Kit
1.5 Theory of Operation
The Prover operates as a transfer test. The meter under test (Field Meter) registers volume and compares
it to the volume registered by a Master Meter. Blowers are used to pull a vacuum, which draws ambient
air into the Field Meter and through a connecting hose directly into the Master Meter.
In the normal test set-up, the mass of air passes through the meter under test and then through the Master
Meter. Since the Master Meter’s characteristics are known, the meter under test can be characterized based
on the difference in its performance parameters as compared to the Master Meter. This difference in
performance is expressed in terms of accuracy (proof and percent error are also displayed).
1.6 Precautions
• No copies of this disk or any of the information contained there on shall be used
for any purpose other than to operate the Model 5 ROOTS Prover.
• Do not operate the Model 5 ROOTS Prover in the presence of flammable gas or
an explosion may result.
• Do not operate the Model 5 ROOTS Prover in the rain or while standing in water
in order to avoid a potential electrical shock.
• Check upstream and downstream blocking or bypass valves to ensure that they operate
properly and are leak tight in the closed position before powering any device.

6ROOTS®Model 5 Prover Software Manual
• CAUTION: Purge all Field Meters (Conventional Meter Proving) of gas prior to testing.
At NO time should power be applied when the Prover is in a possibly explosive atmosphere.
Observe all company safety rules, regulations, and procedures.
• If the ROOTS Model 5 Prover is equipped with both the 2M and 10M or the 5M and 20M
Master Meters, make certain that the unused Master Meter has the inlet quick-disconnect
nipple capped or plugged to prevent any possibility of overspeeding the unused Master Meter.
• (10M/80M ROOTS Model 5 Prover only) Never connect the 10M Master Meter directly
to the female quick-disconnect coupling of the 10M Blower Manifold when the 80M Master
Meter is being used.
• The majority of commercial computers/laptops are designed for an office environment.
Refer to your computer's reference manual for specific operating information and
specifications. Refer to the Care/Proper Handling of Diskettes or CDs in the Help Directory.
• When entering Drive Rate and Test Volume during the configuration of a Meter Test, you must
enter proper values. If the correct Drive Rate is selected from the screen, only valid Test
Volumes are displayed. If "Other" is selected in either the drive rate/pulses/test, or the
test volume selections, it is up to you to enter the proper values.
• (All Provers except 10M & 2M/10M). If “Restart” is pressed during a test, the Prover may restart
the main blower with the main valve partially open. If this occurs, a sudden surge of air may
apply undue stress to both the Master and Field Meters. Press “Stop” first. Stop the test and
allow the main valve to close fully before pressing “Restart.”
• When testing ROOTS intermittently integrated Temperature Compensated (TC) Meters, make
certain to double the standard Pulses/Test value. This is due to the requirement of the special
routines for testing ROOTS Meters to count transitions instead of pulses. One up and one
down transition equal one pulse.
• Controlled software should only be used with the 20M.

7
System Accuracy
(excluding meter under test) +/- 0.55% +/- 0.55% +/- 0.55% +/- 0.55%
System Repeatability
(excluding meter under test) +/- 0.15% +/- 0.15% +/- 0.15% +/- 0.15%
Ambient Operating Temp.
Master Meter +32° to +140°F +32° to +140°F +32° to +140°F +32° to +140°F
0° to +60°C 0° to +60°C 0° to +60°C 0° to +60°C
Controller, etc -4° to +140°F -4° to +140°F -4° to +140°F -4° to +140°F
-20° to +60°C -20° to +60°C -20° to +60°C -20° to +60°C
Ambient Storage Temp.
Master Meter -40° to +140°F -40° to +140°F -40° to +140°F -40° to +140°F
-40° to +60°C -40° to +60°C -40° to +60°C -40° to +60°C
Controller, etc. -40° to +185°F -40° to +185°F -40° to +185°F -40° to +185°F
-40° to +85°C -40° to +85°C -40° to +85°C -40° to +85°C
Humidity up to 95% up to 95% up to 95% up to 95%
non-condensing non-condensing non-condensing non-condensing
AC Power 5M 10M
Blower 120 or 240 VAC 120 or 240 VAC 120 or 240 VAC 120 or 240 VAC
±15%, 48 - 62 Hz ±15%, 48 - 62 Hz ±15%, 48 - 62 Hz ±15%, 48 - 62 Hz
20M 80M
220 VAC 230 VAC ± 10%
±15%, 48 - 62 Hz 50 or 60 Hz, 3-phase
1-Phase
460 VAC ± 10%,
50 or 60 Hz, 3-phase
Electronics 120 or 240 VAC 120 or 240 VAC 120 or 240 VAC 120 or 240 VAC
±15%, 48 - 62 Hz ±15%, 48 - 62 Hz ±15%, 48 - 62 Hz ±15%, 48 - 62 Hz
Blower Capacity
Single 0 - 7,200 ACFH at 0 - 7,200 ACFH at 0 - 7,200 ACFH at 0 - 14,400 ACFH at
10 inch differential 10 inch differential 10 inch differential 10 inch differential
0 - 200 m3/h at 25 0 - 200 m3/h at 25 0 - 170 m3/h at 0 - 400 m3/h at
millibar differential millibar differential 25 millibar differential 25 millibar differential
Dual 0 - 14,400 ACFH at 0 - 22,000 ACFH at 0 - 80,000 ACFH at
10 inch differential 10 inch differential 20 inch differential
0 - 400 m3/h at 0 - 623 m3/h at 0 - 2265 m3/h at
25 millibar differential 25 millibar differential 50 millibar differential
Compliance Meets FCC Meets FCC Meets FCC Meets FCC
Part-15 requirements Part-15 requirements Part-15 requirements Part-15 requirements
NMi and NIST traceable NMi and NIST traceable NMi and NIST traceable NMi and NIST traceable
Test Medium Air Air Air Air
Test Flow Rate 5M Master Meter 2M Master Meter 5M Master Meter 10M Master Meter
35 - 5600 ACFH 35 - 2300 ACFH 35 - 5600 ACFH 100 - 10,000 ACFH
1-158 m3/h 1 - 65,1 m3/h 1 - 158 m3/h 2,83 - 283 m3/h
10M Master Meter 20M Master Meter 80M Master Meter
100 - 10,000 ACFH 200 - 20,000 ACFH 1600 - 80,000 ACFH
2,83 - 283 m3/h 5 - 566 m3/h 45 - 2265 m3/h
Inverter Requirements 2000 Watts 2000 Watts 5000 Watts N/A
(Additional installation components may be required)
Safety Rating Complies with Underwriters Laboratory Requirements
Mobile 5 2M/10M 5M/20M 10M/80M
1.7 Specifications (excluding Computer)

8ROOTS®Model 5 Prover Software Manual
2. Installing the Model 5 Prover Software
2.1 Minimum System Requirements
The following criteria must be met in order to install and run the Prover software:
• One available RS 232 serial port.
• Microsoft® Windows ME, Windows NT®4.0 Service Pack 3 (SP3), Windows 2000, XP or
Windows Vista Business Edition
• Pentium 200MHz processor with 32 MB of RAM
• 256 color video with 800 x 600 capability
• 100 MB of free hard disk space
2.2 Compatibility Issues
1. Output Compatibility
The program will output test reports in a comma delimited text file format (the various data
fields are separated by commas). Therefore, any program capable of reading this type of format
will be able to view and manipulate the data easily and effectively.
2. Hardware Compatibility
Due to a vast number of personal computers to choose from, it has not been feasible for
ROOTS Meters & Instruments to test all makes, models, or versions of PCs for operational
compatibility with the Model 5 ROOTS Prover software. Dresser ROOTS Meters & Instruments
has successfully tested the Prover software on a large number of well known, major brand name
computers as well as non-major brand name PCs. Of those computers tested and currently
utilized by ROOTS Meters & Instruments and many of our customers, the majority have
functioned perfectly, provided they met our recommended minimum requirements (listed in
the above Section 2.1).
ROOTS Meter & Instrument Division does not guarantee all computer brands and models will
run the Model 5 Prover Software without encountering problems. Before making a final purchase
from your local computer supplier, inquire about their return policy, limitations, and restrictions.
We recommend a limited trial policy that offers a money-back guarantee or exchange should the
purchased computer not work with the Prover software.
2.3 Software Installation
Place the software CD in the CD drive. On-screen instructions will appear directing you through the Prover
software installation. Additionally, follow the instructions for installation of the LabVIEW™run-time engine.
If Autorun is not enabled, first select Prover Setup.exe on the CD drive.
If the infrared communications option is active on the serial port chip, there may be
communications errors during the operation of this software. See the computer owner’s
manual for deactivation of this option.
It is recommended that the FIFO settings for the serial port are enabled and the settings for the
applicable com port are as follows:
Port Base I/O Address IRQ
COM 1 3 F8 4
COM 2 2 F8 3
COM 3 3 E8 4
COM 4 2 E8 3

9
Also the FIFO communication speed adjustments should be on the lowest settings. This can be reached by
going to Control Panel:Ports:Com Port Settings.
2.4 Verifying the Proper Files Are Loaded
For each Master Meter available for use with the type of ROOTS Model 5 Prover that is currently being used,
read the identification tag attached to the Master Meter(s). Verify that the serial number for each Master Meter
matches the serial number displayed in the initial start up screen of the ROOTS Model 5 Prover software. If one
of the serial numbers does not match the appropriate serial number on the screen, the original factory diskette
(or a copy of it) must be obtained in order to replace the current factory preset file(s). These file names are
P2M.SET, P5M.SET, P10M.SET, P20M.SET and/or P80M.SET and must be copied into the same directory as
the current Prover Software is located, which should be the \\Program Files\Dresser Inc\Model 5 Transfer
Prover\Config Files\subdirectory. The Startup disk should have the same serial number(s) written on the disk
label to match the serial number(s) of the Master Meter(s) on the Prover.
If the installation is a software upgrade and the disk label does not have serial numbers on the disk then the
preset files must be located and put in the same location as the new program files. During the installation
process the location of the new program will be evident. Following is a list of the configuration files that must
be copied to the new location; they are based on the style of Prover that you are using.
Common files for all prover sizes:
• calidate.cfg, calibr.cfg, and MasterMeters. key
and specific files depending on prover size:
• 2M/10M Model 5 Prover: P2M.SET, P10M.SET
• 10M only Model 5 Prover: P10M.SET
• 20M only Model 5 Prover: P20M.SET
• 5M/20M only Model 5 Prover: P5M.SET, P20M.SET
• 10M/80M Model 5 Prover: P10M.SET, P80M.SET
• 80M only Model 5 Prover: P80M.SET

10 ROOTS®Model 5 Prover Software Manual
3. The Startup Screen and Help
3.1 The Startup Screen
The first screen that is displayed when the program is opened is the Startup screen. From this screen,
you can access the key interfaces of the Model 5 Prover software. The instructions for accessing the
various functions of the Prover software will use the Startup screen as a departure point.
Open/Run Preconfigured Test (<Ctrl+F>)
Run File Conversion Program
Report Manager
Configure/Run Meter Test (<Ctrl +F4>)
Prover Setup (<Ctrl+F5>)
Prover Maintenance (<Ctrl+F6>)
Before proceeding to any of the above screens,
make sure that the serial number on the Master Meter
identification tag matches the serial number that is
entered on this screen.
Also displayed is the date of the most recent
preset file configuration.
3.2 The Help Directory
The Help pull down menu in the Main Screen toolbar
contains two Help functions: CONTEXT HELP and
DOCUMENTATION. Clicking on Show Context Help
<Ctrl+H> activates a feature which permits you to receive
detailed help information for any command or dialog box.
Move the mouse over any displayed term and a detailed
explanation of that term appears on the screen. To turn
off Context Help, click on the X key in the upper right
hand corner of the Context Help box.
Pressing <Ctrl+F1> pulls up the
HELP Documentation.
The files in this program should help you perform
all Model 5 prover functions without the aid of any
other documents.
The HELP program has two primary search tools:
CONTENTS and INDEX.
CONTENTS: This method of searching is useful if the user is
familiar with how the subject in question is classified. For
example, there are six primary classification headings for the HELP documents: Model 5 System, Software,
Calibrating Model 5 System, Test Setup and Proving, Error Messages and Trouble Shooting, and System
Checking and Maintenance. Decide which heading is relevant to the task at hand, then select that folder to
reveal the HELP files on that topic. If a certain HELP file description matches the issue in question, then select
that file by double-clicking it and the file contents will be displayed on the adjacent screen.
INDEX: The Index search method is useful when the user needs to do a rapid search through the HELP file
topics in search of a specific keyword. The keyword may or may not be in the name of that file but once a
keyword is matched to a topic, then the user should double-click on that topic and the program will pull up a
file or list of HELP files that is relevant to that topic. Double-clicking the file name displays the contents on
the adjacent screen.
Any HELP file document can be printed by clicking on the Print icon at the top of the window.

11
4. Setting Prover Options
4.1 The Set Prover Options Screen
The Set Prover Options screen may be accessed from
the initial Startup screen. At the top left of the window,
click on Prover Operations and select Prover Setup
(<Ctrl+F5>). The Set Prover Options screen is protected
by a Level 1 password. The factory installed password
is ROOTS, in all capital letters. From this 1st level
password-protected menu, you can enable the following
functions by checking the box next to the option.
Leaving a box unchecked will disable that function.
Any changes made must be saved prior to exiting or changes will be lost. Changes made will only affect
test(s) configured after changes are saved. Any previously saved test(s) will be unaffected.
1. Mandatory Meter Purge: Checking this option will force you to run a meter purge before
initiating an accuracy test (See 10.5 Meter Purge).
2. Mandatory Leak Test: This option requires a system leak test to pass before an accuracy test
can be initiated (See 10.4 System Leak Test).
3. Double Field Meter Serial# Entry: This option allows the user to input two meter serial
numbers for each test report.
4. Test Volume Selection for Each Flow Rate: This enables change of test volume for each
flow rate if desired. If this option is not selected, then the test volume will default to the
volume entered in the Test Volume Box for every flow rate. (See 5.5 Test Volume).
5. Configurable Repeat of Meter Tests: Check this option to allow the selection of a
different number of repeats for each test point up to a maximum of 2 repeats (3 total tests).
Not selecting this option will default to the entry in the Repeats box on the lower right
portion of the Set Prover Options screen. (See 5.9 Selecting Repeats).
6. Configurable Limits: This option will allow the limits to be configurable for each flow rate
when the test is being configured. Not selecting this box will cause the limits to default to the
numbers entered in the high limit percent and low limit percent on the left portion of the
Set Prover Options screen.
7. Extended Temperature Enable: Check this option to allow the Prover system to operate
beyond the standard temperature limitations.
8. Date Format: Choose between two different date formats that will be shown on the
screens and on test reports.Month/Day/Year or Day/Month/Year.
9. Controller COM Port: Choose which Controller COM setting will work best with your
computer setup.
10. Digitized Counts and °F/Min: This configurable value is the maximum allowable temperature
change before the system assumes temperature stability. The greater the number, the greater the
allowable range in temperature fluctuation before the Prover test will initiate.
11. Sample Period: This is the time span between temperature measurement samples.
12. Low Limit: This configurable Pass/Fail limit is the maximum allowable deviation below 100%.

12 ROOTS®Model 5 Prover Software Manual
13. High Limit: This configurable Pass/Fail limit is the maximum allowable deviation above
100%. For example, if the Low Limit % is set to 2.00 and the High Limit is set to 1.00, then any
test result accuracy falling between 98.00% and 101.00% will yield a ‘Test Pass’ indication, while
any test accuracy result outside these limits will yield a ‘Test Fail’ indication.
14. Span Limit: This test limit defines the maximum allowable difference between the highest
accuracy reported and the lowest accuracy.
15. Repeats: This number indicates a default number of tests that will be run in addition to
the original test. A selection of 0 here will result in one test, while a selection of 1 repeat will
result in 2 tests. Up to a maximum of 2 repeats.
4.2 Changing Units of Measure
Click on Prover Operations at the top of the Set Prover Options screen and select Set Units of Measurement
(<Ctrl+F4>). Change the display units for any of the factors listed by clicking on the arrow in the box below it
and selecting the desired unit.
Whatever unit of measurement that is chosen for Test
Volume will also apply to Drive Rate (the two always
have the same units of measure). The Meter Pressure
selection determines which units of measure will be used
for the Base Pressure entry field of a test configuration just
as the Temperature selection determines the units
of measure for the Base Temperature.
Once the display units have been selected, click Save at the
bottom of the window to implement the changes. To
restore the factory installed settings, click on File at the top
left of screen and select Factory Defaults (<Ctrl+F>).
4.3 Editing Passwords
From the initial startup screen, select Prover Setup from the Prover Operations drop-down menu (<Ctrl+F5>).
The factory installed Level 1 password is ROOTS, in all capital letters. From the Set
Prover Options screen that appears, select Edit Passwords from the File pull down menu (<Ctrl+E>).
The factory installed Level 2 password is DRESSER, in all capital letters.
LEVEL 1 PASSWORD: The LEVEL 1 PASSWORD restricts access to the PROVER SETUP and UNITS OF
MEASURE screens.
LEVEL 2 PASSWORD: The LEVEL 2 PASSWORD restricts access to the PASSWORD MENU.
and CALIBRATION screen.
ENTERING PASSWORDS: Any single keyboard number or character may be used as part of a
password. The maximum total number of characters in a password is 20. The passwords are case
sensitive. A mix of capital and or lower case letters may be used to generate different passwords.
When you enter a password to gain access to a password-protected menu, you must type the
password exactly. This includes no extra key presses and no corrections. The keystrokes must match exactly
what was entered for the LEVEL 1 or the LEVEL 2 PASSWORDs at the time they were last entered in the Edit
Password window. One exception to the above rule: pressing the <ENTER> key
without first typing some other key generates a password of twenty "space" characters. When an operator
wishes to access a password protected menu, pressing the <ENTER> key once or the <SPACE BAR> twenty
times will be accepted as a correct password and allow you access to the password-protected menu. If you
forget or lose your password, Dresser ROOTS Meters & Instruments in Houston, Texas has the MASTER
Password that will allow access to any password-protected menu. Refer to 11.3 Assistance & Service
Procedure.

13
5. Configuring a Meter Test
From the Startup screen, access the Configure-Run
Meter test screen by going to the Prover Operations
drop down menu and selecting Configure/Run Meter
Test (<Ctrl+F4). You may also get there by clicking the
Configure/Run Meter Test button at the bottom of the
screen. From the Configure/Run meter Test screen you
will set the parameters for and initiate the meter test to
be conducted. Once the test information is entered,
press the Start button at the bottom left of the screen to
initiate the test sequence using the
configured testing parameters. The information for
the test configuration will stay current until they
are changed or the screen is returned to the
Startup screen.
You can press <Ctrl+F2> on your keyboard or click on the Close button at any time to
cancel a test configuration and return to the Startup screen.
5.1 Prover Capacity
Click on the black arrow in the right-hand side of the box to display the drop down menu. Select the appro-
priate Master Meter for the test. The 2M Master Meter is a 2300 cfh capacity meter or 65.1 cubic meters. The
5M Master Meter is a 5650 cfh capacity meter or 160 cubic meters, 10M equates to 283,2 cubic meters, 20M
equates to 566,3 cubic meters, and the 80M equates to a 2265,3 cubic meter capacity.
The Master Meter Cable and the Flexible Hose must be properly connected to the selected Master Meter
before continuing. Refer to the appropriate Help Directory selections for the type of test being performed
and/or for connecting your size of Prover, and if applicable for connecting the type of meter to be tested.
Older Provers that have not had the 2M Master Meter recertified since the increase from 2000 acfh to 2300
acfh will not be able to run higher than 2000 acfh unless recertified.
5.2 Test Control Mode
Test Control Mode determines what will control the starting and stopping of a test. Click on the black arrow in
the right-hand side of the box to display the drop down menu. Select the Test Control Mode
to be used for the test from the following three options:
• Instrument Drive Pulser testing utilizes an Instrument Drive
(ID) Pulser unit or the B3 Counter Pulser unit.
• Optical Scanner testing utilizes an optical scanner or pulse unit.
• Manual Start/Stop testing utilizes a manually operated push-button switch.
If you choose Instrument Drive as the Test Control Mode, refer to Table 1 for the correct
Drive Rate.
Never use partial revolutions as erratic proofs may occur.
If you choose Optical scanner as the Test Control Mode, refer to Table 2 for the correct Pulses/Test (PPT).
Important: The Pulses/Test must be a whole number, not a fraction.
If you choose Manual Start/Stop, as the Test Control Mode, neither Drive Rate nor Pulses/Test is required
for test configuration.

14 ROOTS®Model 5 Prover Software Manual
5.3 Meter Output
Meter Output determines what will control the mode of operation to be used for a test. Click on the arrow at
the right of the box to display the drop-down menu. Select from one of the following modes of operation:
• UC (Uncorrected): No correction is made for temperature or pressure. If using an
Optical Scanner for test control, it will read the non-comp volume dial.
• TC (Temperature Corrected): A correction is made for temperature. If using an Optical
Scanner for test control, it will read the Temperature Compensated Volume odometer dial.
• PC (Pressure Corrected): A correction is made for pressure. If using an Optical Scanner
for test control, it will read the pressure Corrected Volume dial.
• PCTC (Pressure and Temperature Corrected): A correction is made for both pressure
and temperature. If using an Optical Scanner for test control, it will read the Pressure and
Temperature Corrected volume dial.
If you choose TC or PCTC additional information will appear in the window labeled TC Options.
Use the mouse and highlight the desired item on the list. TC Options are described below.
TC options, when English units of measure are the default, include the following:
• Diaphragm TC: Click on Diaphragm TC when testing a diaphragm meter.
• ROOTS Mechanical TC: Click on ROOTS Mechanical TC when testing a ROOTS Meter
that is smaller than a 16M size.
• 16M Only ROOTS Mechanical TC: Click on ROOTS Mechanical TC when testing a
16M175 ROOTS Meter.
• ROOTS Electronic VTC: Click on ROOTS Electronic VTC when testing the ROOTS VTC.
• ROOTS Electronic IMC: Click on ROOTS Electronic IMC when testing the ROOTS IMC.
Ta bl e 1. Drive Rates for TEST CONTROL MODE = ID
Meter Sizes with English Units Meter Sizes with Metric Units
of Measure of Measure
Meter Output 8C-11M 16M-102M 8C-3M 5M-38M 56M-102M
UC 10 100 0,1 1,0 10,0
Table 2. Pulse/Test for TEST CONTROL MODE = OPTO
Meter Sizes with English Units Meter Sizes with Metric Units
of Measure of Measure
Meter Output 8C-11M 16M 23M-102M 8C-3M 5M-16M 23M-38M 56M-102M
UC T.V. T.V. T.V. 100 x T.V. 10 x T.V. 10 x T.V. T.V.
10 10
TC 400 400 N/A 400 400 N/A N/A
Temperature compensated ROOTS®Meters cannot be tested using the ID Pulser.
T.V. = Test Volume

15
The TC options, when metric units of measure are the default, include the following:
• Diaphragm TC: Click on Diaphragm TC when testing a TC diaphragm meter.
• ROOTS Mechanical TC: 8C-3M – Click on ROOTS Mechanical TC when testing a
ROOTS 8C, 11C, 15C, 2M or 3M meter.
• ROOTS Mechanical TC: 5M-16M – Click on ROOTS Mechanical TC when testing a
ROOTS 5M, 7M, 11M or 16M meter.
• ROOTS Electronic VTC: Click on ROOTS Electronic VTC when testing the ROOTS VTC.
• ROOTS Electronic IMC: Click on ROOTS Electronic IMC when testing the ROOTS IMC.
If you choose TC or PCTC for meter output, the box labeled “Base Temp. Corr. °F” will appear.
Manually enter the desired base temperature, then press <Enter>. Using the default units of measure,
the acceptable range of temperatures is 32°F to 80°F (0°C to 30°C).
Test results may be affected below 40°F (4°C).
5.4 Drive Rate or Pulses Per Test (PPT)
Refer to Configuring Tests for additional information on selecting proper values for the
Drive Rate and Pulses/Test
If you select the Instrument Drive (ID) Pulser as the Test Control Mode, the box labeled Drive Rate cf
will be displayed on the Configure-Run Meter Test screen. Drive Rate is the volume of gas that passes
through the meter for each revolution of the ID Pulser. The Drive Rate usually corresponds to the odometer's
base increment. It is typically specified on the drive, the meter, and/or the device mounted to the instrument
drive unit. See Table 1 on page 14 for ROOTS®Rotary Meter Drive Rates.
Never use partial revolutions as erratic proofs may occur.
Displayed values for Drive Rate have a corresponding valid Test Volume value(s) for the particular
Master Meter being used. However, use of the Optical Scanner as the Test Control Mode requires
you to calculate, enter or select valid entries.
If you select the Optical Scanner option as the Test Control Mode, the Pulses/Test box will be displayed,
instead of Drive Rate. When the optional Optical Scanner is used for a meter test, you must determine the
total pulses that the Optical Scanner will send back to the Controller for the entire test's duration. If a
fractional number is entered into the Pulses/Test box it will be rounded up to the nearest whole number.
See Table 2 on page 14 for ROOTS®Rotary Meter Pulses/Test Values.
An entire test's duration is from the start of the test until the first "Test # Complete" message is displayed on
the Meter Test screen. A basic relationship exists between a Field Meter’s gear ratio and its measured volume
or its odometer's base increment. The odometer's base increment typically corresponds to the meter’s Drive
Rate, for meters with no Instrument Drive unit. If both the gear ratio and the odometer's base count are
known, the proper whole number for the Pulses/Test and the proper Test Volume may
be determined.
Changing the Drive Rate or Pulses/Test
For both the Drive Rate and Pulses Per Test, click on the black arrow on the right-hand side of the box to
display the drop down menu. Select from the default values. Choosing “Other” will allow you to manually
enter the Drive Rate or PPT into the box immediately to the right and allow you to type in the new Drive Rate
or PPT, or click on the up/down arrow button to change the number displayed. Press <Enter> once the
appropriate value has been selected.

16 ROOTS®Model 5 Prover Software Manual
5.5 Test Volume
Refer to Configuring Tests for additional information on selecting proper values for the Test Volume.
Test Volume is the test parameter that determines what quantity of air passes through a meter during
testing. For a given Flow Rate, the larger the value for the Test Volume, the longer the test's duration.
All tests should last for a minimum of 30 seconds.
To change the Test Volume, click on the black arrow on the right-hand side of the box to display the drop
down menu. Select from the default values, or choose “Other” to manually enter the Test Volume into the box
immediately to the right. You can type in the new Test Volume, or click on the up/down arrow button to
change the number displayed. Press <Enter> once the appropriate value has been selected.
You can enter an unlimited number of test points during each test configuration. On the Set Prover Options
screen, you may enable the Test Volume Selection for each Flow Rate option (See 4. Setting Prover Options
on page 11). The software will then allow you to enter or select a separate Test Volume for each Flow Rate
that is used. If you disable that option, only the first Test Volume selection/entry will be used for each Flow
Rate. The Volume will default to the Test Volume entry but can be changed by entering anew value.
As in the "Other" option for the Drive Rate/Pulses Per Test selection, it is possible to type an invalid
value. You must select a proper or valid value. You should never select a test volume that equals a
partial revolution on ID meters. This will most likely result in erroneous proofs.
5.6 Base Pressure Correction
If you choose PC or PCTC for meter output, the box labeled “Pres. Corr. Factor” will appear. Manually enter
the Fixed Pressure Correction Factor.
For accessory units which include a fixed pressure factor, the Model 5 Prover can account for this only
if you multiply the calculated Pulses/Test by the fixed pressure factor value. You must use this product
as the value for the Pulses/Test entered during a test configuration.
5.7 Flow Rate
Enter the desired Flow Rate for each test on the Flow Rate section of the table at the bottom of the
Configure-Run Meter Test screen.
Flow rates must be in descending order. Start with the highest and end with the lowest.
You will receive an error message if there is a typed value not within the expected range for the current test
and Prover configuration settings. This message will indicate the valid range and proper units that may be
entered. Pressing an invalid key will clear the entry field and display a zero.
A single decimal point is optional when typing the values for Flow Rate. If you enter zero for a Flow Rate,
the test will not be configured or run.
You can run up to three tests for each Flow Rate value. A value of '0' in the repeat column will yield one test
with no repeats; a value of '2' will yield one test with two repeats.
If the Test Volume Selection for Each Flow Rate Option is enabled (See 4.1.4), the volume will default to the
initial setting
but can be changed. Ensure that the Test Volume and Flow Rate settings are such that test
duration is a minimum of 30 seconds.
Important: The Flow Rate(s) should not exceed the maximum rated Flow Rate for the Field Meter.

17
5.8 Test Duration
This value corresponds to the amount of time estimated to run a given sample size at a specified flow rate.
This value is only to show estimated test run time, which is when the word "Running" is displayed on the
Meter Test screen. The complete test sequence time will be longer due to the pretest stabilization period and
the post processing period.
This value is not configurable but derived from the two values of Flow Rate and Volume. When you choose
one or both of these parameters and press <Enter>, this value will automatically update.
If you have selected the option to change the Volume for each Flow Rate in the Prover Options screen, you
can change the test duration by changing the Volume (See section 4.1.4 Test Volume Selection for
Each Flow Rate).
If a test duration is less than the recommended 30 second minimum, an error message will appear. Tests
longer then 30 seconds typically result in more accurate results. This is the case with all meters, but most
significantly with Temperature Compensated meters because of the cyclical nature of the meter’s pulse
signal; much larger sample sizes may be necessary.
5.9 Selecting the Number of Test Repeats
You may configure the number of repeats for each Flow Rate by selecting the option for
Configurable Number of Repeats in the Prover Options screen (See section 4.1.5 for Configurable
Repeat of Meter Tests).
0 – This corresponds to one test with no repeats
1 – This corresponds to one test with one repeat; total 2 tests at that Flow Rate.
2 – This corresponds to one test with two repeats; total 3 tests at that Flow Rate.
If you do not select Configurable Number of Repeats, the number of repeats will be fixed and default to
the number entered in the Repeats box on the bottom right portion of the Set Prover Options screen.
5.10 Save, Close and Change
Refer to Test Setup and Proving, in the Help Directory for additional information on the various types
of tests in addition to testing meter accuracy.
Once you have completed the configuration of a test, you may run the test immediately by pressing the start
button, or you may save, close or change the test configuration. At the end of each test or once you select
Exit Test in the Run screen, the test is ended and the screen returns to the Test Configuration screen.
The test’s configuration information will still be current and easily modified before running another test.
Save (<Ctrl+S>) - allows you to name the test configuration and save it to the default directory.
The save location can be changed if desired.
Close (<Ctrl+F2>) – will close the current screen and return the Startup screen. Any settings for
a test configuration will be lost unless you save the test configuration.
Change (<Ctrl+F>) – To modify a previously saved test file, use the Open/Run Test Configuration from the
File pull down menu. This will open a standard Window’s file search routine and allow you to open any saved
test file in any accessible directory. Once the file is opened, you can make and save changes to a new file or
initiate a test without saving the test configuration.
Dresser Roots Meters & Instruments preconfigured tests are protected. You cannot save them using
the same name in the same location. Either rename, relocate, or do both.