Siemens SITRANS LT500 - Inputs

Technical specifications
8.5 Inputs
SITRANS LT500 with ultrasonic transducer inputs
Compact Operating Instructions, 02/2024, A5E52021877-AA
105
8.5 Inputs
Supported sensors (see full list below)
EchoMax series, ST series, LR series
• Transducer frequency
10 to 52 kHz
• Polling rate
> 1 Hz
mA (analog) (1)
Wiring:
2 conductor, twisted, shielded,
0.324 ... 0.823 mm
2
(22 ... 18 AWG)
Maximum cable length:
500 m (1640.42 ft)
4 ... 20 mA input:
• Resolution - 0.025 % of full scale
• Accuracy - 0.1 % of full scale
• Polling rate - > 1 Hz
Digital (2)
Switching threshold, low
Logical 0 = 0 ... 0.5 V DC
Switching threshold, high
Logical 1 = 10 ... 50 V DC
Input current
3 mA maximum draw
Internal DC power supply
+DC to mA INPUT
> 16 V ... 20 V
Output resistance
40 ohm
Maximum current limit:
40 mA
Supported sensors
• EchoMax XRS-5
• EchoMax XPS-10, EchoMax XPS-15, EchoMax XPS-30, EchoMax XPS-40
• ST-H
• EchoMax XCT-8, EchoMax XCT-12
• EchoMax XLT-30, EchoMax XLT-60
• ST-25, ST-50, ST-100
• LR13, LR21
Note
Use of sensors that are not supported
Although XLS
-30 and XLS-60 are not listed as supported sensors, they can be used by
selecting:
•
EchoMax XLT-30 (for EchoMax XLS-30)
•
EchoMax XLT-60 (for EchoMax XLS-60)