Metering has a modern shop with the most up to date equipment and technology.
Each of our employees tests an average of 5000 meters per year. They are not
interrupted by service calls, other maintenance requirements or the telephone.
Their time is devoted strictly to inspecting the service and calibrating the
meter to as close to 100% as possible. They will inform you of any discrepancies
or potential dangers immediately and in the event of tampering they will take
pictures of anything deemed helpful.
Chapman Metering has been involved in the service business of testing,
installing, repairing, and engineering electric metering applications for over
40 years. Our rates are all inclusive. We do not add fees for mileage, meals or
lodging to any of our statements.
When current and/or voltage transformers enter this picture the revenue gains
can become phenomenal. If one current transformer fails, on a consumer with an
average consumption of 25000 KWH per month, are you certain the billing system
will catch a 30% drop? Far more often than not, this type of equipment failure
will go undetected for years.
If there has never been a thorough inspection of your transformer rated metering
sites we can almost always find enough problems to pay for a meter testing and
maintenance program for several years to come. These sites should be inspected
and the meters should be tested for accuracy on a 3 to 5 year rotation.
Large power and primary metering installations with current transformers that
have deteriorating or corroded connections causing as little as 2% accuracy drop
can easily be linked to significant losses. These installations should be
inspected annually just to keep this phenomenon from occurring.
Analyzing the service with our Bird DogŪ
software provides the
most economical means of determining not only the amount of losses involved, but
will also pinpoint the possible causes.
Field Testing and Calibration of Watthour Meters.
(Before Chapman Metering)
Field-testing utilizes our mobile test labs. Each van is a complete computerized
testing lab fully capable of any procedure that can be conducted in a shop
environment. Every test includes information on the condition of the service,
voltage readings, verification that the wiring is correct, and an inspection to
detect all but the most sophisticated diversion attempts. Self-contained
single-phase and polyphase metering installations are inspected for condition of
the service and proper voltage for the installed meter. Any discrepancies are
well noted to allow repair or corrections as required. We recommend these
services for a testing cycle of a l0 to 15 year rotation.
Testing of polyphase transformer rated services is recommended at a 3 to 5
year rotation. This is due to the added possibility of wiring errors,
deterioration of the secondary wiring, failure of current and voltage
transformers and damages done by the many guests who find the meter socket a
suitable location to set up housekeeping.
Our procedures when testing these meters include verification of the wiring
scheme, burden testing the current and voltage transformers, and printing a
vector analysis of the load during our test. In the event we are unable to
arrange for acceptable load to conduct all these tests a complete visual
inspection is conducted and you are only charged for a routine polyphase meter
We also offer an extended service using our "Spinlabs Bird Dog ™" where all CT's
and VT's in the metering application are both ratio and burden tested for
accuracy. The report that is included with this test is very informative about
the condition of the service and has revealed far more problems with CT's than
we ever imagined. Conducting this test on large power accounts is highly
recommended on at least a biannual basis. We are totally convinced that all
costs will be recovered in extremely short order. This report clearly
illustrates our warnings about incorrectly sized CT's.
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2. Load Control Device Inspection and Maintenance.
This service was developed after we received requests from several clients and
is proving to be very valuable to them. We are finding many units indicate they
are functioning properly when actually they are not. There are locations where
someone has managed to use a creative connection scheme that rendered the
control device inoperative. There has been anything from broken antennas,
defective receivers that only needed corroded connections cleaned, to devices
utterly destroyed by vandalism.
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We are currently involved in several AMR projects and have become very well
informed as well as proficient at making the transition to automated meter
reading go smoothly. Our ability to write programming within our Microsoft
Access™ driven database to check and double check data transfers being conducted
between the AMR software and your company operations software has virtually
eliminated data entry errors. At a minimum the errors are caught and corrected
before becoming an issue for the billing department.
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Our Lab, located just 1 block off of Interstate 80 on Highway 59 in Avoca, Iowa
provides all the services required for shop meter testing. We stock and pre-wire
meter sockets, metering CT cabinets and combination CT cabinet meter socket
equipment. We use our own standard color code in these sockets or, at no extra
cost to you, will wire them using your specified color codes. We can build any
metering package you may require, generally from our stock, within a matter of a
few days. We also have field personnel available to deliver and assist in the
installation of this equipment if needed.
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Watt-hour, Var-Hour and Voltmeter Standard Certification.
equipment is certified annually and traceable to the National Bureau of
Standards. Voltmeter standards need to be sent to our lab for certification as
that test equipment is fairly delicate and not very portable. We can certify
your meter test equipment either in the lab or at your location since the solid
state equipment is so stable. The procedure of removing the standard from
today's test equipment is sometimes very involved and sending the equipment back
to the manufacturer for certification is definitely costly.
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Almost any metering applications you can dream up is within the realm of our
service abilities. Many utilities are generating at peak times to assist the
supplier in peak shaving at very substantial savings. The original panel meters
carry multipliers of 100 or 1000 and are equipped with clock dial registers.
Hourly readings recorded have always been an educated guess instead of exact
values. At a cost typically less than $1,000.00 per metering point, we have been
converting this equipment to solid state primary reading sockets type meters.
The results are fantastic and the periodic maintenance and testing of these
meters becomes far less involved.
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Our meter information database uses Microsoft Access™ and is possibly the most
versatile meter record keeping system around. We provide a "Complimentary Copy
of our Access.MDB" file to our clients at no charge. This copy has enough
prepared reports and data transfer capabilities to provide adequate information
about meters we have tested for you. For a nominal fee we can customize this
file to include data from your system and design specific reports, file
transfers, data input and data comparisons you might need.
The only limiting factor here is your imagination. If it can be done with
Microsoft Access™ we can make it happen for you.
We are extremely knowledgeable with all manufacturers meter programming software
and can provide you with solid state meters programmed the way you need them and
ready to be installed. If you purchase the meter through us it is shipped to you
programmed and ready for service. If it is programmed incorrectly, we will
correct it at no charge. We can set up any type of communication chain you may
need and have field personnel close enough to get in and help you with special
projects at any time. If we are unable to provide the meter you require, at a
competitive price we can still help you be certain the meter you do purchase is
what you need. Don't buy more meter than it takes to do a job and don't buy a
meter that can't be expanded in the event more features are required in the
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