Measuring principle

Ultrasonic level measurement

Measuring range

0.3 to 15 m (1 to 50 ft)

Measuring points

1 or 2

Output

Ultrasonic transducer

44 kHz

Relays

5 relays, rated 5 A at 250 V AC, non-inductive

• Wall Mount version: 4 SPST Form A relays, 1 SPDT Form C relay
• Rack and Panel Mount version: 4 SPST Form A relays, 1 SPST Form B relay

Accuracy

Error in measurement

0.25% of range or 6 mm (0.24"), whichever is greater

Resolution

0.1% of measuring range or 2 mm (0.08"), whichever is greater¹⁾

Temperature compensation

-50 to +150 °C (-58 to +302 °F)

• Integral temperature sensor
• External TS-3 temperature sensor (optional)
• Programmable fixed temperature

Rated operating conditions

Ambient conditions

Ambient temperature for enclosure

-20 to +50°C (-4 to +122 °F)

Design

• Rack mount

DIN 3 HU/21 pitch, 4-rail plug-in unit suitable for standard 3 HU/84 pitch (19") rack

• Panel mount

Suitable for standard panel cutout DIN 43700 72 x 144 mm,
110 mm (4.33") center height

Weight (rack and panel mount)

1.5 kg (3.3 lbs)

Weight (wall mount)

2.5 kg (5.5 lbs)

Communications

• RS-232

Siemens Dolphin protocol, Modbus RTU and ASCII

• Option

SmartLinx compatible, RS-485

Power supply

100 to 230 V AC ± 15%, 50/60 Hz, 36 VA (17 W) or 12 to 30 V DC, 20 W

Ultrasonic transducer

Compatible transducers: ST-H and Echomax^® series
XPS-10/10F, XPS 15/15F, XCT-8, XCT-12 and XRS-5

mA output signal

2-core copper conductor, twisted, shielded, 0.5 to 0.75 mm (22 to 18 AWG), Belden^® 8760 or equivalent is acceptable

Displays and controls

• Rack and panel mount

75 x 20 mm (3 x 0.8") LCD (selectable backlighting)

• Wall mount

100 x 40 mm (4 x 1.5") multfield LCD, backlit

Programming

Using removable handheld programmer (ordered separately) or Dolphin Plus software (option)

Memory

1 Mbyte RAM (static) with battery, 1 Mbyte flash EPROM

Certificates and approvals

CE, FM, CSA