The Bullet enables existing wired HART field devices from
any supplier to communicate with host applications by means
of WirelessHART™ technology. The Bullet is installed
permanently by wiring it directly to a standard HART field
device, or connecting it anywhere on the 4-20mA current loop
with a junction box. A wired HART field device retrofitted
with the Bullet communicates its analog process variable
over the existing wiring to the existing DCS with no wiring
changes. The Bullet simultaneously communicates the digital
PV and device diagnostic information over the WirelessHART
network.
The Bullet can also be installed on a non-smart (analog
only) device and will transmit a digital representation of
the analog 4-20mA PV to the control room over the
WirelessHART™ network which can save labor cost by
eliminating manual recording of data.
}
Add to existing wired HART-enabled devices to access
valuable HART data and device diagnostics
}
Use when new measurements are needed but cost of wiring or
time is prohibitive
}
Upgrade control valves with smart positioners to provide
valve health and diagnostic data
}
Additional measurements by adding the Bullet to “analog
only” devices not connected to the control or asset
monitoring systems
Control Valve Application
- Upgrade control valves
with smart positioners and the Bullet to quickly and easily
provide valve health and diagnostic data. With control
valves being one of the major maintenance expenses in most
process applications, wiring cost to access control valve
information can now be greatly reduced. The information can
be used as part of a predictive maintenance strategy to
schedule work on only the valves that need it during a
shut-down. This predictive strategy will reduce unscheduled
plant shut downs and can reduce maintenance and shut down
times.
A4. Key Features:
§
Cost saving Multidrop support for up to 8 devices
§
Loop powered option – no battery or other power source
required
§
Connects directly to HART field device or anywhere on the
4-20 mA loop
§
Patent pending StepVolt™ technology sets insertion voltage
in steps from 1 to 2.5 volts to optimize trade off between
available loop power and wireless communication bandwidth
§
Patent pending Direct Power option when local DC power or
battery/solar system is available:
o
Internal 250 ohm loop current sense resistor provided,
configurable by WirelessHART
command
o
In Direct Power mode, Bullet can switch field device on/off
to take periodic readings to save power
§
200+ meters open air range
§
Certifications
for GP model:
o
HART 7.1 Registered with the HART Communication Foundation -
fully compliant for communication reliability when the
WirelessHART test suite is available
o
FCC Part 15, IC, CE
A6. How do you power the Bullet?
The Bullet is typically loop-powered, requiring no batteries
or other power sources. Featuring MACTek’s patent-pending
StepVolt technology that sets insertion voltage in steps
from 1 volt to 2.5 volts the Bullet will optimize the
trade-off between available loop power and wireless
communication bandwidth.
Optionally the Bullet may be connected to external power
such as line power, battery or solar to add new measurement
points in locations where powering new loops from the DCS
would be too costly or difficult. For example, installing
measurement points on rotating and mobile machinery is a
particular challenge for which the Bullet can be an easy and
cost effective solution.
The Bullet offers a unique power cycling feature that cycles
power to attached devices reducing power consumption, an
advantageous feature for battery or solar powered
applications. When powered externally the Bullet provides
the load resistor required by the HART protocol, saving
users the time and cost of installing and wiring an external
resistor in the field wiring.
The Bullet maintains the high standards of reliability,
quality, and ease of use demonstrated by our VIATOR
Bluetooth, USB and RS232 HART PC modems. Our entire product
family is fully compliant with the HART communication
specifications and both our wireless and wired solutions
have proven to be easy to use and compatible with
HART-enabled devices from any vendor.
Bullet’s Differentiators
-
Universal communication device – works with all analog and
HART registered devices independent of power supply or
supplier
-
Complete product line – from General Purpose to IS and
Explosion Proof
-
Unique product features that save time and money –
multidrop of up to 8 devices, fast update rates, built-in
internal load resistor for battery and stand alone
applications, loop powered, power switching and patent
pending StepVolt™.
-
Built on 15+ years of HART experience- as the leader in
HART modems, we understand HART technology and what
features HART users need in a communication device.
Why did MACTek make the investment in WirelessHART
technology? Because we believe users will quickly see the
huge benefits in accessing additional measurement data as
they work to keep their plants competitive. With our HART
protocol experience, it was a natural for us to participate
in the development of the new wireless technology, and to
create new WirelessHART products. MACTek has been a
consistent contributor to the WirelessHART activity from its
inception, through the development of the specification and
the NAMUR Field Trial, and as an early implementer of
WirelessHART products.
8A.
Ordering
Information, Product
Numbers &
Pricing
The Bullet is
currently available
for use in General
Purpose (GP) area
classification. The
GP model is
available in two
configurations;
110100-2 consists of
a General Purpose
area classification
and the ability to
multidrop two
devices – one Bullet
will communicate
information from two
devices.
110100-8 consists of
a General Purpose
area classification
with the ability to
multidrop up to 8
devices. Later
this year we will
offer Intrinsically
Safe and Explosion
Proof models.
|
Model Nbr.
|
Description
|
Price
|
|
|
110100-2 |
Bullet WirelessHART Adapter – GP
w/ 2 Multidrop |
$749.95 |
|
|
110100-8 |
Bullet WirelessHART Adapter – GP w/ 8 Multidrop |
$899.95 |
|
