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Gas Industry Measurement
Gas Measurement
Graphic Controls offers the unique combination of Recording Charts and Disposable Pens... Tailored to your Measurement Requirements.
Graphic Controls is a world leader of recording charts and high quality disposable pens, pen arms, inks and accessories. We manufacture charts and pens to fit the majority of recorders in use today.
The enormous variety of recording charts made by Graphic Controls includes circular, strip, rectangular and fanfold charts...ink-writing, heat-sensitive, pressure-sensitive and electrosensitive. These charts are used in instruments that record physical measurements such as temperature, pressure, humidity, flow, liquid level, electric current and voltage...magnetic, seismic and similar information.
Graphic controls is a single-source supply for your total recording chart requirements. And we bring more than 50 years experience to bear on the custom design of charts to fill special needs -- for any application.
For your Gas Measurement System: Recording Charts and Disposable Pens from Graphic Controls
Graphic Controls manufactures the charts and disposable pens we sell -- so we've taken the time to make sure they work well -- Together.
- Optimal 7 mil thickness to provide stiffness and curl control for use in the field under normal and high stress conditions.
- All disposable pens are designed to meet exacting environmental and performance standards to ensure consistent high quality.
- Easy recording retrofit with patented POSILOC™ Pen Arms.
- Compatibility with OEM Specifications to ensure continued reliable performance, that meet or exceed American Gas Association (AGA) specifications.
- Our manufacturing facility has obtained ISO 9001-2000 certification. We are especially proud to be among the many manufactures who have received certification to this exacting standard on our first application. You can be assured that every product we offer meets the highest quality standards and will provide you with reliable performance in the most demanding and critical operations.
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Look for our "Gas Flame" logo on series 72™ and Series 79™ Disposable Pens:
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 The Intense black ink in our Static Pens allows you to forget about retracing!
- Our redesigned bias cut nib covering design provides enhanced visibility while arcing the pens and setting the time lag.
- Our continued commitment to excellence for all of our Gas Measurement Products ensures your satisfaction.
Series 72™ and 79™ Scannable Pens are designed to produce CLEAN, SCANNABLE charts.
- Broader line width assures reliable scanner processing.
- Exclusive Graphic Controls inks virtually eliminate skips and estimations.
- All temperature ink ensures a solid, scannable trace in all types of climates.
- Pen Arrays can be calibrated to a 15 minute lag (.090") between Differential and Static pens on the Zero Line of a 24 hour chart.
- Scannable pens allow you to increase the number of charts that can be scanned and will improve the accuracy of your billing operation.
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Series 72™ and 79™ Fine Line Pens for Integrators offer performance advantages to gas industry companies that process their charts manually.
- Fine-point pen tips provide sharply defined lines.
- Thinner lines allow integrator operators to trace the flow of gas more accurately.
- Pen Arrays can be calibrated to a 15 minute time lag (.090") between Differential and Static pens on the Zero Line of a 24 hour chart.
Part Numbering System
Gas Industry pens use a 10-digit part number. The Marking System Guide lists gas industry pens with the appropriate recorders.

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These products are warranted to be free from all defects in material and workmanship. Because of the variety of uses to which these products may be put, seller does not warrant that they can be used for any particular purpose and disclaims all other warranties, whether expressed or implied.
The Welker Slot Chart
When you need chart-changing reliability.
After years of customer usage in both field and
off-shore operations, not a single major operating
problem has been reported. Automatic chart
changing provides gas transmission companies
with accurate chart data, which results in a greater
amount of billable gas and increased revenues.
The reliability factor of the Welker Slot Chart has
been a remarkable achievement of design and
quality assurance in our chart repertoire. Welker
Slot Charts are used by most of the major gas
transmission companies in the United States and
the market’s continued reliance on our charts is
a testament to the accuracy and reliability of our
product offering.
We print, die-cut and punch our charts with
precision, custom designed equipment. The
accuracy of our chart products is the result of
millions of dollars of investment in state of the
art instruments and equipment. Our financial
investments and commitment to continuous
improvement allow us to provide exceptional
quality and fulfill the most critical requirements
of gas measurement.
Used with the Mullins Dial-O-Graph® Automatic
Chart Changer, our charts with the exclusive
Welker Slot provide fast, accurate and reliable
readings. It can be expensive and frustrating
when charts become jammed or damaged during
the measurement process but the reliability and
durability of our high quality charts will make
these problems an afterthought.
Welker Slot Charts offer scanner ink in two shades,
readout holes, back-printing and overprinting.
Our charts function properly on all scanner and
integrator units.
Dial-O-Graph® is a registered trademark of the Mullins
Manufacturing Company.
Calibration Discs
Gas Measurement Supervisors
For the calibration of your electro scanners
and manual integrators, Graphic Controls has
the answer. For years Graphic Controls has
been selling Calibration Discs to instrument
manufacturers for the daily calibration of
their equipment.
The accuracy and precision of our Calibration
Discs exceeds the American Gas Association
AGA-5 specifications.
The most popular Calibration Discs are
listed below but if you have any special
requirements, contact your sales representative
or call our Customer Service Department
at the telephone number on the back of this
brochure for assistance.
Ordering Description |
Description Breakdown |
CBD 001 |
Linear Scribing for American Meter (Wescott) - Foxboro - Rockwell |
CBD 005 |
Linear & Square Root Scribing for American Meter (Wescott) - Foxboro |
CBD 007 |
Custom Made Calibration Discs |
Series 85™ Integrator Pen
The Series 85™ Integrator Pen eliminates the
time-consuming and messy chores of filling
and cleaning your integrator’s tracing pens by
replacing bottles of ink with a clean, reliable
disposable pen.
Filled and sealed at our on-site factory, the
Integrator Pen is a revolutionary self-contained ink
system. There’s no chance of leaks, spills or clogs
and for your convenience, you never have to touch
the ink.

Plain dial charts and blotters are available for
many different applications. For more information,
contact your sales representative or call our
Customer Service Department at the telephone
number on the back of this brochure.
Available In 5 Colors |
Black |
Red |
Blue |
Green |
Brown |
82-85-0011-10 |
82-85-0012-10 |
82-85-0013-10 |
82-85-0014-10 |
82-85-0018-10 |
Each pack comes with 10 Pens of a Single Color |
Series 77™ Disposable Pens
Our Graphic Controls Series 77 pens couple
field retrofit with the convenience and reliability of
our Disposable Pens. The pens will quickly convert
1, 2 or 3 pen recorders. They are the ONLY
disposables available for this chart-changer
equipped application.
What makes these pens different? Their shape!
The pen body has been moved away from the
writing tip and just a thin metal stylus extends
down to the chart’s surface. This way, nothing
interferes with the critical chart-changing cycle.
Non Chart-Changing Applications
Series 77™ disposable pens are also
recommended for applications where frequent
pulsation causes writing problems.
To Install
Simply remove the old ink system, connect the
pen to its pen arm and place it on the recorder. The
pen arm’s slotted end allows plenty of room for
adjustment to meet the arc line.
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Pen Part No |
Position |
Color |
Pen Arm No. |
Series 77 / To Fit: American Meter |
82-77-1001-03 |
Inner |
Black* |
80-36-3640-01 (1) |
82-77-2002-03 |
Middle |
Red |
80-36-3650-01 (2) |
82-77-3004-03 |
Outer |
Green |
80-36-3650-01 (2) |
Series 77/ To Fit: Barton |
82-77-1001-03 |
Inner |
Black* |
80-36-3390-01 |
82-77-2002-03 |
Outer |
Red |
80-36-3390-01 |
82-77-3004-03 |
Outer |
Green |
80-36-3390-01 |
*All pen bodies are color coded to match the ink
they contain.
Blue Pens are available for inner position:
Order 82-77-1003-03 |
(1) Right Hand Adjustment
(2) Left Hand Adjustment |
Posiloc™ Pen Arm Guide
American Meter |
Indent. Letter |
Instrument Model Number / Size |
GC Part Number |
*A |
To fit all positions 12" Recorder |
80-36-2490-01 |
*B |
80-36-3030-01 |
12" Orifice Meter |
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Temperature and Differential |
80-36-0980-01 |
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Static |
80-36-0970-01 |
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Instrument Model Number/Size |
Function |
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GC Part Number |
8" Round |
Single Pen |
Pressure |
80-36-3330-01 |
Volume |
80-36-0990-01 |
Two Pen |
Pressure |
80-36-3330-01 |
Volume |
80-36-0990-01 |
Temperature |
80-36-3340-01 |
Barton |
Instrument Model Number |
Replacement for |
GC Part Number |
12" Recorders |
Differential & Static |
80-36-2430-01 |
Model 202 |
Differential & Static |
80-36-1331-01 |
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Foxboro |
Instrument Model Number |
Adjustable Pen Arm (GC NUMBER) |
Standard Pen Arm |
Light Weight Pen Arm |
10" Round Case and 12" Rectangular Case (Model 40) Recorders |
80-36-2420-01 |
80-36-1190-01 |
80-36-3130-01 |
80-36-1200-01 |
80-36-3140-01 |
80-36-1210-01 |
80-36-3150-01 |
80-36-1220-01 |
80-36-3160-01 |
Rectangular Case (Model 30) and 12" Round Case |
80-36-2410-01 |
80-36-1230-01 |
80-36-3170-01 |
80-36-1240-01 |
80-36-3180-01 |
80-36-1250-01 |
80-36-3190-01 |
80-36-1260-01 |
80-36-3200-01 |
80-36-1270-01 |
80-36-3210-01 |
Mercury |
Instrument Model Number |
Description |
GC Part Number |
#800 Series (8")
#1200 Series (12") |
#1 Temperature |
80-36-3710-01 |
#2 Pressure |
#3 Volume |
#900 Series (12")
#700 Series (8", 10", 12") |
#1 Temperature |
80-36-3740-01 |
#2 Pressure |
#3 Volume |
Chart Variations
Graphic Controls offers the variations listed below to meet your unique application requirements. We can also produce private label charts designated with your company's identification to meet your organizational chart needs. Questions about additional variations may be posed directly to sales representatives
Printing
- Scanner Gray/Blue
- Back Print
- Non-Standard Color
- Over Prints
Slotting
- Dial-O-Graph Slotting
- Welker Slotting
- Automatic-Meterman Slotting
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Extra Holes
- Read out Hole
- Special Holes
Materials
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