Siemens Treadmill LC 500 사용자 설명서
7ML19985GE01
SITRANS LC 500 – INSTRUCTION MANUAL
Page 5
mm
mmm
mmm
Spec
ificat
ions
ions
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
• inputs/outputs fully galvanically isolated
• polarity-insensitive current loop
• fully potted
• integrated safety barrier
• 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
• deviation between A/D and D/A converter
values
• check sum
• watch dog
• self-checking facility
• watch dog
• self-checking facility
Outputs
• galvanically isolated
• damping
• 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
• 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
User Interface
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
programming menu items
Communications
HART
1
Communication protocol
1.
HART® is a registered trademark of the HART Communications Foundation.