Siemens Treadmill LC 500 Manual De Usuario

7ML19985GE01

SITRANS LC 500 – INSTRUCTION MANUAL 

Page 5

Safety

• current signalling according to NAMUR NE 43; 

3.6 to 22 mA / 22 to 3.6 mA

• probe input ESD protected to 55 kV
• inputs/outputs fully galvanically isolated
• polarity-insensitive current loop

• fully potted
• integrated safety barrier

Diagnostics (Includes 

• primary variable (PV) out of limits

fault alarm)

• system failure measurement circuit
• deviation between A/D and D/A converter 

values

• check  sum
• watch  dog
• self-checking facility

• galvanically isolated
• damping

range 1 to 10,000

Current loop

• continuous signal

4 to 20 mA / 20 to 4 mA 

• 2-state functionality 4 or 20 mA / 20 or 4 mA, on or off 
• time delay

1 to 100 sec. activating / de-activating

• adjustable hysteresis (on / off)  0 to 100%, min. 1% of range

Solid-state switch

40 Vdc / 28 Vac / 100 mA at 2 VA max.

• time delay

1 to 100 sec. activating / de-activating

• adjustable hysteresis (on / off)  0 to 100%, min. 1% of range

Local digital display

4 1/2 digit LCD

Rotary function switch

for selecting programmable menu items

• 16 Positions 

0 to 9, A to F 

Push-buttons: RED (+), BLUE (–)

used in conjunction with rotary switch, for 
programming menu items

HART

 1

 Communication protocol

1.

HART® is a registered trademark of the HART Communications Foundation.