Manual

C
hapter 1: Introduction
1
. Description
Series ULTM is an ultrasonic level meter with integrated GSM cellular modem
and USB interface. Optional items include external temperature sensor and
programmable timer switch.
S
eries ULTM measures distance for targets such as liquid or solids.
M
easurement is continuous and does not require contact with the target. The
s
ystem can accurately measure steady or agitated target surfaces. The system can
a
lso rapidly track filling and emptying of vessels. The system measurement
distance spans 5.9 in (15 cm) to 26 ft (8 m). In addition to distance, the ULTM can
also measure temperature of the environment.
Series ULTM makes use of the measured distance to calculate additional
i
nformation such as target level and volume.
S
eries ULTM operates at an ultrasonic frequency of 75 kHz, making it perfect for
n
oisy conditions. The sensor is made of PVDF, therefore providing good chemical
resistance to corrosive targets.
Series ULTM may be used with 8 to 33 VDC power. The low power mode is
available for use with batteries and is supported using a Programmable Timer
Switch (PTS).
S
eries ULTM is equipped with a large graphic display and keypad allowing a
s
imple wizard-driven setup of the system. The keypad and display allow
c
onfiguration of many ULTM configuration parameters. Complete setup of all ULTM
parameters can be executed using a USB equipped PC or laptop. This method of
configuration allows for rapid cloning of multiple ULTM systems.
Series ULTM transmits measurement information to a predefined destination –
(either cellular phone or cellular PC modem) via SMS with user-programmable
r
eporting intervals. The system also identifies and sends an alert in boundary
e
vents such as full and empty situations. The system can also be programmed to
i
dentify or alert for rapid changes of level, indicating theft and refuel quantities. The
system can also transmit on/off contact state information.
This user manual is intended for users and operators of Series ULTM. The
manual covers system description, installation, operation and troubleshooting for
the Series ULTM.
S
PECIFICATIONS
M
easuring range
M
aximum Range for Liquids: 26.25´ (8 m);
Maximum Range for Solids: 19.69´ (6 m).
Accuracy – Precision – Resolution -Tracking
A
ccuracy:
1
5 cm<range<60 cm: 0.59˝ (1.5 mm);
6
0 cm<range<5 m: 0.3% of measured range;
5
m<range<8 m: 0.2% of maximum range.
Repeatability: 0.2% of measured range.
Display Resolution: 0.04˝ (1 mm).
SMS Resolution: 0.04˝ (1 mm).
M
ax Tracking Rate: 0.55 ft/sec (10 m/min).
B
eam Angle: 5° @ 3 dB point.
Electrical Specifications
Power Supply: 8 to 33 VDC on ULTM ports.
Low Power Mode: Programmable sleep mode.
Current Consumption @ 24 VDC:
C
ontinuous: Less than 10 mA;
D
uring SMS transmission: Less than 40 mA;
S
hort spikes at switch and SMS: Less than 160 mA.
Data Interface: Serial COM over USB at 115,200 bps.
USB Port: Firmware upgrade.
Display: 64X128 graphic LCD, viewing size 50X25 mm
2
.
C
ellular Modem Specifications
B
and: Quad band 850/900/1800/1900 mHz.
O
utput Power: Class 4 (33dBm) for EGSM850/EGSM900.
Class 1 (30dBm) for GSM1800/GSM1900.
SMS: Point-to-point MO and MT.
GPRS: Multi-slot class 10.
Reports
Displayed: Level and percentage level;
Distance and percentage distance;
Volume;
Temperature (internal and external);
Echo strength;
Global operating hours;
Resettable operating hours.
Data Sent by SMS: Level, distance, volume, temperature, status.
Alerts Sent by SMS: Full, empty, over consumption, refill, custom.
Temperature Characteristics
Operational Temperature Range: -4 to 158°F (-20°C to 70°C).
Temperature Sensors: Internal and optional external.
Temperature Compensation: Built-in based on internal sensor, external sensor or
average of the two.
Temperature Display: Internal and external temperature; Instantaneous and
recorded high/low.
Mechanical Specifications
Enclosure Material: Plastic PC/ABS+UV.
Sensor Material: PVDF.
Sealing Rating: IP65/IP67; IP68 - 96 hours at 5.91´ (1.8 m) depth in water.
Mounting Orientation: Vertical.
Mounting Threads: 1.5˝ BSP or 1.5˝ NPT.
Cable Entries: Conduit 1/2˝ NPT.
Weight: 1.95 lb (884.51 g).
*To measure external temperature, contact factory for ULTM-EXT for external
temperature sensor.
Page 2
Figure 1: Series ULTM Parts.