Omega Engineering CN3271 Series, Руководство пользователя

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STANDARD RANGES TABLE
D) LOGIC INPUTS D) LOGIC INPUTS
D) LOGIC INPUTS D) LOGIC INPUTS
D) LOGIC INPUTS
(for models with RS-485 only)
(for models with RS-485 only) (for models with RS-485 only) (for models with RS-485 only) (for models with RS-485 only)
This instrument is provided of 1 logic input used
for remote acknowledgement.
NOTES
NOTES NOTES NOTES NOTES
1) Use an external dry contact capable of
switching 0.5 mA, 5 V DC.
2) The instrument needs 100 ms to recognize a
contact status variation.
3) The logic inputs are NOT NOT NOT NOT NOT isolated by the
measuring input.
OUTPUTS OUTPUTS OUTPUTS OUTPUTS OUTPUTS
Output updating time Output updating time Output updating time Output updating time Output updating time :
- 250 ms when a linear input is selected
- 500 ms when a TC or RTD input is selected.
OUTPUT 1 OUTPUT 1 OUTPUT 1 OUTPUT 1 OUTPUT 1
Type: relay
Type: relay Type: relay Type: relay Type: relay SPDT contact .
Contact rated
Contact rated Contact rated Contact rated Contact rated: 3 A at 250 V AC on resistive load.
Function
Function
Function Function
Function: Safety limiter output.
Action
Action Action Action Action: reverse (fail-safe).
OUTPUT 2 OUTPUT 2
OUTPUT 2 OUTPUT 2 OUTPUT 2
Type: relay
Type: relay Type: relay Type: relay Type: relay SPST contact .
Contact rated
Contact rated Contact rated Contact rated Contact rated: 2 A at 250 V AC on resistive load.
Function
Function Function Function Function: Alarm output
Action
Action
Action Action Action: direct/reverse programmable by front
keyboard.
ALARM ALARM ALARM ALARM ALARM
Action Action Action Action Action: Direct or reverse acting.
Alarm functions
Alarm functions
Alarm functions Alarm functions Alarm functions: configurable as process alarm,
band alarm or deviation alarm.
Alarm reset
Alarm reset Alarm reset Alarm reset Alarm reset: automatic reset, manual reset or
"Silence" function is programmable.
Stand by (mask) alarm
Stand by (mask) alarm Stand by (mask) alarm Stand by (mask) alarm Stand by (mask) alarm: the alarm can be
configured with or without stand by (mask)
function.
Process alarm Process alarm Process alarm Process alarm Process alarm:
Operative mode
Operative mode
Operative mode Operative mode Operative mode : High or low programmable.
Threshold
Threshold Threshold Threshold Threshold : programmable in engineering unit within
the readout span.
Hysteresis
Hysteresis Hysteresis Hysteresis Hysteresis: programmable from 0.1 % to 10.0 % of
the readout span.
Input type Input type Input type Input type Input type
15
16
17
18
19
20
21
22 0 - 60 mV 0 - 60 mV 0 - 60 mV 0 - 60 mV 0 - 60 mV
12 - 60 mV 12 - 60 mV 12 - 60 mV 12 - 60 mV 12 - 60 mV
0 - 20 mA 0 - 20 mA 0 - 20 mA 0 - 20 mA 0 - 20 mA
4 - 20 mA
4 - 20 mA
4 - 20 mA 4 - 20 mA 4 - 20 mA
0 - 5 V 0 - 5 V
0 - 5 V 0 - 5 V
0 - 5 V
1 - 5 V
1 - 5 V 1 - 5 V 1 - 5 V 1 - 5 V
0 - 10 V
0 - 10 V 0 - 10 V 0 - 10 V 0 - 10 V
2 - 10 V
2 - 10 V 2 - 10 V 2 - 10 V 2 - 10 V
impedance impedance impedance impedance impedance
> 1 M Ω
< 5 Ω
> 400 k
Ω
> 400 k Ω
Accuracy Accuracy Accuracy Accuracy Accuracy
0.2 % + 1 digit
@ 25°C
(77 °F)
LHL-1-NEUTRO.pmd 19/04/2004, 15.07 23