Alarm control, Performance, Reference conditions – West Control Solutions N8100 User Manual
Page 74
ON/OFF Differential:
0.1% to 10.0% of input span.
Auto/Manual Control:
User-selectable with “bumpless” transfer
into and out of Manual Control.
Cycle Times:
Selectable from
1
2
s to 512 secs in binary
steps.
Setpoint Range:
Limited by Setpoint Maximum and Setpoint
Minimum.
Setpoint Maximum:
Limited by Setpoint and Range Maximum.
Setpoint Minimum:
Limited by Range Minimum and Setpoint.
Setpoint Ramp:
Ramp rate selectable 1 - 9999 LSDs per
hour and infinite. Number displayed is
decimal-point-aligned with selected
range.
A.7
ALARM CONTROL
Maximum Number of
Alarms:
Two “soft” alarms plus Loop Alarm
Max. No. of Outputs
Available:
Up to two outputs can be utilised for alarm
purposes.
Combinatorial Alarms:
Logical OR or AND of alarms to an
individual hardware output is available.
A.8
PERFORMANCE
Reference Conditions
Generally as EN60546-1.
Ambient Temperature:
20
°
C
±
2
°
C
Relative Humidity:
60 - 70%
Supply Voltage:
90 - 264V AC 50Hz
±
1%
Source Resistance:
<10
Ω
for thermocouple input
Lead Resistance:
<0.1
Ω
/lead balanced (Pt100)
A-9
S054-A
59125