AMETEK 7250 Digital Stick - Manual

AUTOMATION & PROCESS TECHNOLOGIES
®
7250X Digital Stik Sensor Data Sheet
7250 Series
Proven Magnetostrictive Sensing Performance
in a Revolutionary New Package
The 7250X Digital Stik takes f eld proven
magnetostrictive sensing technology
and packages it in a revolutionary new
way for greater reliability and easier
installation and mounting. It is ideal for
liquid level monitoring, interface level and
leak detection in a variety of liquid media
in both above ground and underground
storage tanks.
The 7250X Digital Stik combines low
power consumption with a patented high
resolution design. It requires only 5 volts
DC making it ideal for mobile, battery
operated and wireless applications.
The system has been designed to meet
EPA Leak Detection and API Inventory
Monitoring requirements and has
been approved for use in hazardous
environments.
The sensor’s electronics are SMT
components and integrated into a 5/8”
diameter sensing tube. This breakthrough
design eliminates the bulky electronics
enclosure at the top of the sensor and
offers greater options for insertion and
mounting.
The probe is constructed of 316 Stainless
Steel and comes with a variety of
connectors, including a mini connector
for quick connect applications, a single
3/4” NPT that can be used with a
compression f tting, a double 3/4” NPT for
mounting with a f ange or bushing, and a
1/2” right angle for use in low overhead
applications.
The 7250 communicates through a
single signal. The data is transmitted via
asynchronous serial communications
and is offered with serial protocol options
including an ASCII format. There are
other options available to OEMs for use
in developing a communications interface
with the probe. The patented design
allows for very high resolution on a low
power budget. The resolution of the 7250X
is 0.0001” with a linearity of 0.01% (See
specif cations).
Factory Mutual (FM) certif ed that the
7250X Digital Stik is Intrinsically Safe for
use in ethylene and propane (petroleum)
applications (See specif cations). The
7250X has been approved to the following
standards:
CSA C22.2 Nos. 25,142,157 and 213
FM 3600, 3610, 3611 and 3810
Cenelec EN 50014, 50020 and 50284
The 7250X has an inherently lower cost
design which results in savings. It provides
the same performance and reliability
as sensors that consume more power.
Combining low power requirements with
high resolution provides the ultimate
performance and reliability.
Specifi cations
Power Supply
Voltage
Current (at +5 VDC)
+5 VDC ± 10% typical (+3.7 VDC min.)
10mA max. (8mA typical) plus
1.5mA max. (1mA typical) per temperature
sensor
Probe Length
Stainless Steel R Style
Stainless Steel D, S, M Style
(Probes available in 1” increments)
21” to 288”
20” to 288”
Consult Factory for
longer lengths
Operating Temperature
Sensing Area
Electronics Area
-40°C to 100°C (Non Hazardous Location)
-40°C to 70°C (Hazardous Location)
-40°C to 70°C
Hazardous Areas Approvals
FM
-40° O Tamb O 70° C
Class I, II, III, Div. 1
Groups C, D, E, F, G, T4
Class I, Div. 2
Groups A, B, C, D, T4
Class I, Zone 0, AEx ia IIB T4
ATEX
Ex ia IIB T4
NEMKO 05 ATEX 1219X
0344
Pressure Rating Steel Probe: 1000 psi max.
Float: Dependent. Call Factory.
Resolution 0.0001” (Protocol Dependent)
Repeatability Equal to Resolution
Linearity Probes up to 288”: ± 0.01% of span
or ± 0.015”, whichever is greater.
Hysteresis Probes up to 288”: ± 0.002% of span
or ± 0.005”, whichever is greater.
Null Zone R Style: 9”
D, S and M Style: 8”
Dead Band 2”
Intrinsically Safe Barrier See Installation Drawing E0241200.
Consult Factory.
Enclosure Material
Rating
316 Stainless Steel IP68
Specifi cations are subject to change without notice. Patented.
II 1G
Sanitary Approvals
(3A 74-03)