Latest News from Weschler Instruments
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70 Years of Power & Process Measurements
May 2011
Rugged Bargraph Meter for Outdoor Applications
In This Issue:
• Rugged Bargraph Meter for
Outdoor Applications
• Monitoring Electric Energy
Use
• Transformer Temperature
Monitor & Control
• Durable Process Indicators
An oil drilling rig needed a large, easy to read
display of hydraulic pressure. The Weschler
BG261 Bargraph Meter, with several factory
options, met the requirement. The large digits
and circular bar on this 8.75" meter are easily
seen from 30 ft away. The high intensity display option provides LEDs that are viewable in
bright sunlight.
High shock internal mountings designed for
military shipboard meters are used here to
withstand the rig's shock and vibration. An
extended operating temperature range, down to -35°C, meets the need for all
season operation.
The BG261 is mounted with other indicators in a NEMA 4X enclosure. The
meter also has a spraytight front bezel, so weather protection is maintained
even when the enclosure door is opened. Dual setpoint outputs are used to
trigger alarms when hydraulic pressure goes above or below the normal
operating range. The meter is powered from the 24VDC control supply.
A wide selection of inputs is available to measure sensor and process
signals. Other configuration options on the BG261 include analog retransmit,
serial communication and line voltage operation. The BG261 has a single
color bar. The BGTC series features a three color bar.
BG261 Data
Other Bargraph Meters
Monitoring Electric Energy Use
Measurement & Control News
is a newsletter highlighting
products, applications and
information of interest to
instrumentation users.
Reducing energy consumption is a federal
mandate for many projects and can result in significant cost savings. The E-Mon D-Mon Energy
Meters are an effective way to monitor energy
use within a commercial and industrial building.
Single phase and three phase units accommodate
circuits up to 3200 Amps. Split core current
sensors speed retrofit installation. An E-MON
meter can be used stand-alone or tied into a data
network. Wireless remote monitoring is also
available.
Sub-metering allows billing of tenants or departments based on actual energy
use. This requires an energy meter connected to each circuit. For this
application, E-MON offers a compact cabinet that holds up to 24 digital
meters. The Multiple Meter Unit simplifies meter reading and occupies significantly less space than the traditional glass jar meters used by utilities.
E-MON Meters
Other Digital Meters
Latest News from Weschler Instruments
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Transformer Temperature Monitor & Control
Weschler's Transformer Advantage is an Electronic
Temperature Monitor designed to easily upgrade
the analog temperature indicators on oil-filled
transformers. Oil-filled transformers rated 1MVA or
higher are typically found outside large factories or
processing plants. The Advantage provides a
precise readout of oil and winding temperatures. It
will also control cooling fans and activate alarms if
temperatures exceed a safe operating level.
Visit weschler.com for:
• Digital Meters
• Analog Meters
• Bargraph Meters
• Controllers
• Sensors & Transducers
• Signal Conditioners
• Test Equipment
We carry Weschler products
and products from 50 of the
leading equipment brands.
The Advantage has many features not available on
analog gauges. Digital communication can link the
Advantage to the plant SCADA network, for remote
monitoring or data recording. Cooling can be started based on transformer load, time of day or
season to provide additional transformer capacity on hot days. Internal
diagnostics verify proper operation every 10 minutes (failures on
analog gauges often go undetected for years).
Initial setup of the Advantage is easily
done from the front panel or with a
laptop computer. Units can also be
preset at the factory for even quicker
field startup.
Replacement analog gauges are
expensive, so the Advantage is a cost
effective upgrade for one or two analog
gauges. Some Advantage models can
replace up to 4 analog gauges.
Hundreds of option combinations are
available, so each unit is configured to
match the specific requirements of the
user's site.
More info
Weschler Instruments
16900 Foltz Parkway
Cleveland OH 44149 USA
phone: 800-903-9870
440-378-6580
fax:
800-903-9590
440-238-0660
web: www.weschler.com
email: info@weschler.com
Offices in OH, NY, FL & TX
System diagram
Durable Process Indicators
The Yokogawa DURA Series Process Indicators are mounted in a die
cast NEMA 4X aluminum housing.
These rugged units are ideal for use
in dirty process environments. The
MLA Analog Loop Powered
Indicator is designed to meet FM
standards for hazardous locations.
It is available for 4-20mA, 10-50mA
& 1-5VDC
signals. Wall or 2" pipe (horizontal or vertical) mounting can be specified.
The MLD Digital Loop Powered Indicator has a 4 digit LCD display with
0.05% FS accuracy. Input is 4-20mA. Standard display is 0-100%, with
engineering units available on request.
The DURA Elapsed Time Meter is a 6 digit mechanical counter with cumulative hour or minute indication. Models are UL rated for 120, 240 or 480 VAC
operation. Reset and non-reset versions are available.
MLD/MLA Info
Other Loop Powered Indicators
DURA ETM Info
Other Elapsed Time Indicators