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CAUTION: THE METER END COVER IS PRESSURIZED.
Bleed off the line pressure before removing the oil fill or drain plug from the meter.
Top Inlet
Side Inlet
Oil Fill Plugs
Oil Fill Plugs
Oil Sight Gauges
Oil Sight Gauges
8C-16M Oil Fill Plug and Oil Level Sight Gauge Locations
TROUBLE SHOOTING CHECKLIST
Trouble
Item
Possible Cause
1
Obstruction in piping
meter
No Flow
Registered
2
Index or RPM wheel
does not return.
3
Build-up of deposits in
measuring chamber.
4
Worn bearings or
gears.
High
5
High oil level or
Differential
heavy oil
6
Impellers rubbing
cylinder or headplates,
or meter out of time
7
Piping misalignment
or strain.
Vibration/
8
Impellers rubbing
Noise
9
Contaminants in
measuring chamber
Dresser Measurement
16240 Port Northwest Drive
Houston, TX 77041
T: 1-800-521-1114
F: 1-800-335-5224
The Dresser Logo and all Trademarks containing the term "Dresser"
are the property of Dresser, LLC, a subsidiary of Baker Hughes.
Gear End
Oil Fill Plugs
Counter
End
Oil Sight Gauges
Oil Sight Gauges will be parallel and on
the bottom for top inlet and side inlet
23M-56M Oil Fill Plug and Oil Level Sight Gauge Locations
Remedy
Check pipe and valve to assure an open
flow path. Check for impeller rotation.
Refer to Step #5 "Placing meter in line."
No gas flow. Open valve or remove
obstruction per item 1.
Flush meter.
Replace or Return to our Product Service
Department.
Check oil level and cleanliness.
Rotate impellers manually to check for
binding or rubbing. Remove obstructions
and/or time the meter. Check the meter
level.
Remove piping strain. Level meter.
See items #4 & #6.
See item #3.
www.dresserutility.com
Series B3 Installation Supplement NGS.MI.0018a
07.21
Dresser B3 Meters: Installation Supplement and IOM
Dresser Series B3 Rotary Meter
Models 8C175-56M175
Refer to IOM-B3 for Complete Instructions
Receiving, Handling And Storage
Although of very rugged construction, reasonable care should be given
during handling and storage.
At time of delivery
1. Check the packing list to account for all items received.
2. Inspect each item for damage.
3. Record any visible damage or shortages on the delivery record.
• File a claim with the carrier.
• Notify your Roots Meter supplier immediately.
IMPORTANT NOTES
• Do not attempt repairs or adjustments, as doing so may be a basis for voiding all claims
for warranty.
• Do not add oil to the two meter end cover oil reservoirs until after the meter has been
permanently installed and is ready for service. The Series 3 Accessory Units do not
require lubrication.
Introduction – Use And Limitations
Meters of standard construction are not directly suitable for handling acetylene, biogas or
sewage gas. Specially constructed meters made of materials directly compatible with these
and other gases are available. Please contact your Roots Meter supplier for details and to
request publication TS:SSM.
Meter Installation – Piping Configurations
Line mounted Dresser meters may be installed in either a Top Inlet (vertical) or a Side Inlet
(horizontal) configuration. The preferred or recommended installation is top inlet in a vertical
pipeline with gas flow downward.
Dresser Measurement

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Do you have a question about the B3 Series and is the answer not in the manual?

Questions and answers

Melvin B Basham
February 19, 2025

When timing a 5M on the compensated index 10 ft. Do you time from start to stop or start to start

1 comments:
Mr. Anderson
May 14, 2025

To time a 5M on the compensated index for 10 ft in the Dresser B3 Series, use one of the following methods:

1. Manual Start/Stop Switch:
- Input the desired volume (10 ft³) into the Model 5 program.
- Allow flow and temperature to stabilize.
- Press the manual switch to start the test.
- When the field meter odometer reaches 10 ft³, press the switch again to stop the test.

2. Instrument Drive Pulser:
- Mount the pulser directly to the instrument drive.
- It will automatically start and stop the test at the desired volume with improved accuracy.

Timing is from the moment you start the test to when the odometer reaches 10 ft³.

This answer is automatically generated

Summary of Contents for Dresser B3 Series

  • Page 1 Impellers rubbing See items #4 & #6. Noise Line mounted Dresser meters may be installed in either a Top Inlet (vertical) or a Side Inlet Contaminants in See item #3. (horizontal) configuration. The preferred or recommended installation is top inlet in a vertical measuring chamber pipeline with gas flow downward.
  • Page 2 Replace the plug after Isolating verifying free impeller rotation. Valves Restricting 5. There are two oil reservoirs in the Dresser Series B meter basic body. Oil is shipped with 1/4" Blow-off Flow Orifice Valve Plate each new meter in a quantity sufficient to fill the reservoirs in either a Top Inlet or a Side Inlet configuration.
  • Page 3 Dresser Measurement Dresser Series B3 Rotary Meter B3: 8C175 - 56M175 B3-HP: IM300 - 3M300 Installation, Operation and Maintenance Manual...
  • Page 4: Table Of Contents

    Contents Warranty and Limitation of Liability ..........2 Accessory Unit Removal & Conversion Procedures ..................15-20 Receiving, Handling and Storage .............3 • Removing the Accessory Unit Introduction ....................3 • Removing the Gear Reduction • Use and Limitations • Replacing the Gear Reduction •...
  • Page 5: Receiving, Handling And Storage

    Dresser recommends a drop or two of oil be applied • File a claim with the carrier. to each bearing and that the meter be run at a flow rate between •...
  • Page 6: General Design Characteristics

    Accessory Unit Volumetric accuracy of the Dresser meter is permanent and non-adjustable. Measurement characteristics are established by Totalization of the volume is performed by a magnetically the shape and the precise machining of non-wearing fixed and coupled gear reduction unit referred to as the Series 3 Accessory rotating parts.
  • Page 7: Counter With Instrument Drive (Cd)

    Pulser Version (ICPWX/ITPWX) Top to Side inlet or vice versa. (Refer to “Accessory Unit removal Dresser Utility Solutions Pulsers generate low frequency pulses & Conversion Procedures, Side Inlet to Top Inlet Conversion”.) for remote volume data collection. Pulsers are available with...
  • Page 8 Table 3 - Pulse Outputs for Series 3 Pulsers Pulse Pulse Pulse Pulse Meter Meter Type # Connectors Rate Rate Type # Connectors Rate Rate Size Size (English) (Metric) (English) (Metric) Counter Single 8C-3M 10 cf 0,1 m Single 8C-3M 10 cf 0,1 m Counter...
  • Page 9: Counter With Electronic Transmitter (Icex)

    Counter with Electronic Transmitter (ICEX) Version Like the Dresser Utility Solutions Solid State Pulsers, ICEX Meters (Integral Counters with Electronic Transmitters) have a magneti- cally driven Pulser inside the cover. It generates a single channel high frequency pulse. This allows for remote collection of volume while also providing a pulse rate suitable for determination of flow rate.
  • Page 10 Table 6 – Pulse outputs for ICEX Accessory Units in relation to meter sizes. Volume per Pulse Pulses per Volume* Flow Rate Meter Freq. Type (Hz) (CF) (CF) (ACFH) 8C175 0.001852 0,000052439 19070 11C175 146.67 0.002083 0,000058993 16951 1,100 15C175 166.67 0.002500 0,000070792...
  • Page 11: Reading The Odometers

    Figure 9b would indicate a volume of 1592432,7 cubic meters. Figure 7 - American Footprint AMR Adapter installed on a 2M Dresser Utility Solutions meter (shown with Residential ERT On the 56M metric meter (Figure 9c), all of the odometer digits attached).
  • Page 12: Test Wheel

    If over-speed conditions could occur, a restricting flow orifice plate should be installed 2 to 4 pipe diameters downstream of the meter outlet. Contact the factory or your Dresser Utility Solutions representative for sizing, pricing and availability. NOTE: Warranty does not cover meter failure due to over-speed conditions.
  • Page 13 Strainer Isolating Valves Restricting 1/4" Blow-o Flow Ori ce Valve Plate 1/4" Needle Valve Inlet Outlet Figure 11 - Top Inlet Configuration for Series B3 Meter. Restricting Flow Ori ce Plate Strainer Isolating Valves 1/4" Blow-o Valve 1/4" Needle Valve Outlet Inlet Figure 12 - Side Inlet Configuration for Series B3 Meter.
  • Page 14: Placing Meter In Line

    Placing Meter In Line CAUTION: The meter must NOT be under pressure IMPORTANT: for this procedure. Do not fill meter end cover oil reservoirs until after the meter has been permanently installed and is ready for Figure 14 service. (Refer to for oil reservoir locations).
  • Page 15 After a meter is installed in line and oil has been added to the IMPORTANT: DO NOT add oil to meter reservoirs, gas flow will rotate the meter impellers. The oil the permanently lubricated Series 3 slingers will splash lubricant into the bearings. This will quickly Accessory Unit.
  • Page 16: Meter Start-Up

    Meter Start-Up c) Let the meter operate at low speed for several minutes. Listen IMPORTANT: closely for unusual scraping or knocking sounds. The maximum working pressure of any rotary meter is limited by casing design. Meters should not be installed d) If operation is satisfactory, go directly to Step f).
  • Page 17: Procedures

    Accessory Unit Removal and Meter Lubrication Use only Dresser Meter Oil or other instrument grade oils Converson Procedures approved for service by the manufacturer. The following section covers general procedures for changing Meters installed and maintained in accordance with factory...
  • Page 18 Gas Flow Quad Seal Temperature Probe (TC Only) Meter End Cover Polycarbonate Cover Slip Flange Magnet Cup Odometer(s) Facing Outward Male Driving Magnet #10-24 Screws (4x) Figure 17 - Assembling Series 3 Accessory to meter end cover Gear Reduction Unit Polycarbonate Cover Gear Reduction Unit Temperature Probe...
  • Page 19: Replacing The Gear Reduction

    Instrument Drive Conversion Replacing the Gear Reduction Unit in Polycarbonate (Side Inlet to Top Inlet Conversion) Cover (Refer to Figure 18) The following procedures are required to change the position of 1. Slide the gear reduction unit into the cover. Align the the instrument drive assembly and drive dog rotation direction.
  • Page 21 Gas Flow 1/4-20 Screws (2x) Universal Instrument Adaptor Plate Quad Seal Meter End Cover Drive Dog Polycarbonate Cover and Gear Reduction unit Quad Seal Drive Dog Shear Pin Figure 20 - Assembly Instrument Drive to meter end cover Bevel Gear on Top Bevel Gear on Bottom...
  • Page 22: Changing The Id Rotational Direction

    Changing the Rotational Direction of the Installing a Counter with Electronic Transmitter (ICEX) to a Instrument Drive CTR Accessory All meters with an instrument drive are shipped from the Factory 1. Remove the CTR Accessory from the meter. To do this, with the “drive dog”...
  • Page 23: Testing

    Testing 45 psig General Rotary meters are tested for accuracy by several industry 30 psig accepted methods. These test methods include, but are not limited to transfer, bell, piston, sonic nozzle, and critical flow 15 psig proving. The Differential Test is unique to rotary meters and is a convenient method of comparing a meter’s performance to Atmospheric previous or original performance records.
  • Page 24: Differential Test Procedure

    ΔP flow rate. Differential Test Acceptance Calculator The Dresser Utility Solutions Differential Test Acceptance Calculator takes all the manual calculations out of meter acceptance determinations. Just “clock” your meter, take your differential pressure reading, plug in your value and the software does the rest.
  • Page 25: Proving Operations

    Dresser Meter Accessory NOTE: Inaccurate results may occur if the gas Unit. The dial will rotate from white to black (and vice versa) temperature has not stabilized before starting the test.
  • Page 26: Calculating Theoretical Counts

    NOTE: Example: Assume the gas temperature is 53.0°F, and from Figure Some of these digits may be partially or completely 25 , the initial odometer reading ( Ci ) = 9756. We then allow the obscured by masking. The masking must be removed if the readings are not visible.
  • Page 27 Table 10 - Temperature Cycle Testing -Theoretical Number of Counts (TNC) for specified temperature in degrees Fahrenheit (°F). Based on 25 Temperature Compensation Cycles. °F °F °F °F °F °F 50.0 2549.0 55.0 2524.3 60.0 2500.0 65.0 2476.2 70.0 2452.8 75.0 2429.9 50.1...
  • Page 28: Sizing Charts

    Imperial Sizing Charts Line Mounted Model 8C175* 11C175* 15C175* 2M175* 3M175* 5M175* 7M175 11M175 16M175 23M175 23M232 38M175 56M175 102M125 *Also available in 200 PSIG Rating Rating 1100 1500 2000 3000 5000 7000 11000 16000 23000 23000 38000 56000 102000 PSIG Corrected Capacity at Metering Pressure –...
  • Page 29 Metric Sizing Charts Line Mounted - Metric Model 8C175* 11C175* 15C175* 2M175* 3M175* 5M175* 7M175 11M175 16M175 23M232 23M175 38M175 56M175 102M125 *Also available in 200 PSIG Rating Rating 22,7 31,2 42,5 56,6 141,6 198,2 311,5 453,1 651,3 651,3 1076 1585,7 2888,3 PSIG...
  • Page 30: Trouble Shooting Checklist

    T: 1-800-521-1114 F: 1-800-335-5224 © 2021 Natural Gas Solutions North America, LLC – All rights reserved. Dresser Utility Solutions reserves the right to make changes in specifications and features shown herein, or discontinue the product described at any time without notice or obligation.

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