Siemens Milltronics SF 500, Инструкция по эксплуатации, Страница: 10 / 134

Page 4 Milltronics SF 500 – INSTRUCTION MANUAL 7ML19985CN01
mmmm
m
Specificat
ions
Inputs
• load cell/LVDT Conditioning Card:
0 - 45 mV dc per load cell/LVDT Conditioning Card
• auto zero: dry contact from external device
• mA see optional mA I/O board
• auxiliary: 5 discrete inputs for external contacts, each
programmable for either display scrolling, totalizer 1
reset, zero, span, multispan, print, batch reset, or PID
function.
Outputs
• mA: - 1 programmable 0/4 - 20 mA, for rate, for rate output
- optically isolated
- 0.1% of 20 mA resolution
- 750
Ω load max
- see optional mA I/O board
• load cell/LVDT Conditioning Card:
10 Vdc compensated excitation for LVDT Conditioning
Card or strain gauge type load cells, 2 cells max, 150 mA
max
• remote totalizer 1: - contact closure 10 - 300 ms duration
- open collector switch rated 30 Vdc, 100 mA max
• remote totalizer 2: - contact closure 10 - 300 ms duration
- open collector switch rated 240 Vac/dc, 100 mA max
• relay output: 5 alarm/control relays, 1 form 'A' SPST relay contact per
relay, rated 5 A at 250 Vac, non-inductive
Communications
• two RS-232 ports
• one RS-485 port
• SmartLinx® compatible (see
Options
on page 5)
Cable
• one load cell/LVDT:
non-sensing: Belden 8404, 4 wire shielded, 20 AWG or equivalent,
150 m (500 ft.) max
sensing: Belden 9260, 6 wire shielded, 20 AWG or equivalent,
300 m (1000 ft.) max
• two load cells:
non-sensing: Belden 9260, 6 wire shielded, 20 AWG or equivalent
150 m (500 ft.) max
sensing: Belden 8418, 8 wire shielded, 20 AWG or equivalent,
300 m (1000 ft.) max