Alstom iSTAT M355, Manual, Page: 113 / 154

User Manual M3x5/EN M/B
iSTAT M3x5
Page 111
MODULES
Alarm module Type Relay output
Purpose Alarm output, General purpose digital
output
No. of outputs 2 (Modules 1, 2) or 8 (Modules A, B)
Rated Voltage 230 V
AC/DC
± 20% max.
Max switching current 1000 mA (Module 1, 2)
100 mA (Module A, B)
Contact resistance ≤ 100 m Ω (100 mA, 24V)
Pulse (Module 1, 2 only) Max 4000 imp/hour, Min length 100ms
Status (Watchdog) module Type Relay output
Number or outputs 1 x wa 1 x relay output
Normal operation Relays is ON position
Failure detection delay ≈ 1.5 s
Rated Voltage 230 V
AC/DC
± 20% max.
Max switching current 1000 mA
Contact resistance ≤ 100 m Ω (100 mA, 24V)
Energy Pulse module Type Optocoupler open collector
Purpose 2 x Pulse output
Maximum voltage 40 V
AC/DC
Maximum Current 30 mA (R
ONmax
= 8 Ω )
Contact resistance Programmable (2….999 ms)
Analogue Output module Output range 0 … 20mA
Accuracy 0.5% of range
Maximum burden 150 Ω
Linearization Linear, Quadratic
No, of breakpoints 5
Output value limits ± 120% of nominal output
Response time
(measurement
and analogue output)
Depends on setting of general average
interval
0.1s – 5.0 s
Residual ripple < 1% peak to peak
Tariff Input Module No of inputs 2
Voltage 5….48 V AC/DC *
110V ± 20% AC/DC *
230V ± 20% AC/DC *
* Depends on built in hardware
Digital Input Module No of inputs 2 (Modules 1, 2) or 8 (Modules A, B)
Voltage 5….48 V AC/DC *
110V ± 20% AC/DC *
230V ± 20% AC/DC *
* Depends on built in hardware