Power Reqs: 115 VAC (+15%) or 230 VAC (+15%), 50/60 Hz
Power Consumption: 6 VA continuous, 50 VA intermittent
Altitude: 6562 ft (2000m) max
Relative Humidity: Suitable for Outdoors
Installation Category:
II
Pollution Degree: 4, Suitable for indoor/outdoor use
Operating Temp: -40° F to 150° F (-40° C to 65° C)
Max. Int Bin Temp: Up to 300°F (149°C) w/use of bare SS cable;
Up to 200°F (93°C) w/use of nylon or
polyethylene jacketed cables
Max. Vessel Pressure: 15 PSI
Measurement Range: 150 feet maximum (45.7 m)
Measurement Rate: 1.0 foot/second (typical) (0.3 m/s)
Accuracy: + 0.25% (distance or level)
Repeatability: 0.1 feet (30 mm)
Resolution: 1/100 foot (3 mm)
Mounting: Freeze-Resistant “K” flange, 8” dia.
w/ 7” bolt circle
Conduit Entry: (2) 3/4” NPT
Cable: 1/16" nylon-jktd (270 lb/123 kg); 3/64" SS
unjktd (270 lb/123 kg); 1/16" polyethylene-jktd
(270 lb/123 kg)
SMU Weight
(Approx.)
: 42 lbs (19.1 kg)
Plumb Bob Weight: 2 lbs (0.9 kg)
Shipping Weight
(Approx.)
: 45 lbs (20.4 kg) - [Includes SMU, plumb bob,
cable and carton]
Ship Carton Dimensions: 34 x 15 x 16 inches (864 X 381 X 406 mm) -
(L X W X H) [Includes SMU, plumb bob & cable]
Enclosure/Housing: Cast Aluminum, powder coat finish
Air Purge Connection: 1/4” NPT
Protection: NEMA 4X / Enclosure Type 4X; IP66
Approvals: CSA
us/c
: Ordinary Locations;
Class
II
, Group E,F,G; Class
III
ATEX:
II
1/2 D c
Ex tb lllC T75
o
C Db
I
P66
(Ta -40
o
C TO +65
o
C)
IECEx: Ex tb lllC T75
o
C Db
I
P66
(Ta -40
o
C TO +65
o
C)
CE Mark
CHINA RoHS 2
RS-485 Model
Input/Output:
RS-485, half-duplex, isolated, proprietary protocol
Address Selection:
1-16 (SiloPatrol); 1-247 (Modbus)
Wiring Distance:
3280 ft (1000 m) @ 9600 baud, 26 AWG
Relay Output:
5A @ 250VAC max, isolated, dry contact
Sound/Lockout: (Vhi)9 8-265VAC/DC, 9.5K ohm input
resistance, isolated; (Vlo) 20-55 VAC/DC,
2.0K ohm input resistance, isolated
Analog(4-20mA) Model
4-20mA:
Reversible to 20-4mA, self powered 500 ohm
max loop, isolated
Relay Output:
5A @ 250VAC max, isolated, dry contact
Sound/Lockout: (Vhi) 98-265VAC/DC, 9.5K ohm input
resistance, isolated; (Vlo) 20-55 VAC/DC,
2.0K ohm input resistance, isolated
SPECIFICATIONS
Monitor Technologies LLC warrants each
Silo
Patrol
®
SE
SMU inventory monitoring sys-
tem it manufactures to be free from defects in material and workmanship under normal
use and service for two (2) years from the date of purchase. The purchaser must notify
Monitor of any defects within the warranty period, return the product intact, and prepay
transportation charges. The obligation of Monitor Technologies LLC under this warranty
is limited to repair or replacement at its factory. This warranty does not apply to any prod-
uct which is repaired or altered outside of Monitor Technologies’ factory, or which has
been subject to misuse, negligence, accident, incorrect wiring by others, or improper
installation. Monitor Technologies LLC reserves the right to change the design and/or
specifications without prior notice.
WARRANT Y
SAFET Y
General Safety
CAUTION:
It is essential that all instructions in this manual be followed to
ensure proper operation of the equipment and safety of operating personnel.
The use of this symbol is used throughout this manual to highlight important
safety issues. Please pay particular attention to these items.
Electrical Shock Caution
SMUs are powered with HIGH VOLTAGE. No operator serviceable parts are
inside. All servicing is to be performed by qualified personnel. Each SMU is pro-
vided with a "protective conductor terminal" which shall be terminated to earth
ground potential (See Electrical Installation). This product's design complies with
EN61010-1 installation category II and pollution degree 2.
Hazardous Location Caution
Certain SMUs can be used in Hazardous Locations (See Specifications).
These models shall only be used in applications covered by stated ratings or
those considered non-hazardous. Failure to comply could result in damage
to personnel and property. The following must be maintained to assure safe
operation:
1) Enclosure integrity
- the dimensions of the housing, side covers,
cover retention hardware, or through shafts shall not be altered.
2) Maintenance
- Power to all circuits must be disconnected before con-
ducting any investigation, setup, or maintenance when in a hazardous
atmosphere.
Mechanical Hazards
Consider the SMUs weight whenever lifting or moving the instrument. When
being serviced by authorized personnel, extreme caution shall be taken
whenever power is supplied to a SMU unit and the cable and associated
mechanisms are accessible. The gear motor has sufficient torque to pinch
fingers between the cable and other mechanical parts. Particular areas of
danger include the storage reel, measuring wheel, rollers, and take-up
spring assembly.
Electromagnetic Compatibly (EMC)
The SMU was tested and found to comply with the standards listed below.
The SMU should not be used in residential or commercial environments.
Compliance to the EMC standards was demonstrated by means of a test
setup using the following installation methods.
1)
SMU enclosure was connected to earth ground (protective earth).
2)
Shielded cable was used to interconnect the RS-485 network (connec-
tions +D and -D). The shield drain was connected to (SHD terminal)
at each end.
EMC Emissions:
Meets EN 61326-1 Electrical Equipment for Control Use, EMC
EN 55011 Radiated and conducted emissions
(Class A - industrial)
EN 61000-2 Harmonic Current Emissions
EN 61000-3 Voltage Fluctuation & Flicker
Meets FCC Part 15B RF Devices, Unintentional Radiators
CISPR 11 Radiated and conducted emissions
(Class A- industrial)
EMC Immunity:
Meets EN 61326-1 Electrical Equipment for Control Use, EMC
EN 1000-4-2 Electrostatic discharge (industrial)
EN 1000-4-3 RF radiated EM fields (industrial)
EN 1000-4-4 Electrical fast transients (industrial)
EN 1000-4-5 Electrical surges (industrial)
EN 1000-4-6 RF conducted EM energy (industrial)
EN 1000-4-8 Power frequency magnetic fields (industrial)
EN 1000-4-11 Source voltage deviation
B U L L E T I N
344A
GDR
JSC
AUG 04 2017
DOC-001-344A 24
Teflon
®
is a registered trademark of Dupont Chemical Co.
Bluetooth
®
is a registered trademark of Bluetooth SIG, Inc.
Android, Google Play, and the Google Play logo are trademarks of Google Inc.
Modbus
TM
is a trademark of Schneider Electric / Modicon
Monitor Technologies LLC
44W320 Keslinger Rd.
t
Elburn, IL 60119
t
800-766-6486 (630-365-9403)
t
E-mail: customerservice@monitortech.com
t
www.monitortech.com
