Omega Engineering CN3271 Series User Manual page 26

STANDARD RANGES TABLE
Input type Input type Input type Input type Input type impedance impedance impedance impedance impedance Accuracy Accuracy Accuracy Accuracy Accuracy
15 0 - 60 mV 0 - 60 mV 0 - 60 mV 0 - 60 mV 0 - 60 mV
> 1 M
16 12 - 60 mV 12 - 60 mV 12 - 60 mV
12 - 60 mV 12 - 60 mV
17 0 - 20 mA 0 - 20 mA 0 - 20 mA 0 - 20 mA 0 - 20 mA
< 5
18 4 - 20 mA 4 - 20 mA 4 - 20 mA 4 - 20 mA 4 - 20 mA
0.2 % + 1 digit
19 0 - 5 V 0 - 5 V 0 - 5 V 0 - 5 V 0 - 5 V
@ 25°C
> 400 k
1 - 5 V 1 - 5 V
20 1 - 5 V 1 - 5 V 1 - 5 V (77 °F)
21 0 - 10 V 0 - 10 V 0 - 10 V 0 - 10 V 0 - 10 V
> 400 k
22 2 - 10 V 2 - 10 V 2 - 10 V 2 - 10 V 2 - 10 V
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 isolated by the
NOT
measuring input.
LHL-1-NEUTRO.pmd 23
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 SPDT contact . Type: relay Type: relay Type: relay Type: relay
Contact rated Contact rated: 3 A at 250 V AC on resistive load. Contact rated Contact rated Contact rated
Function Function: Safety limiter output. Function Function Function
Action: reverse (fail-safe). Action Action Action Action
OUTPUT 2 OUTPUT 2 OUTPUT 2 OUTPUT 2 OUTPUT 2
Type: relay SPST contact . Type: relay Type: relay Type: relay Type: relay
Contact rated Contact rated Contact rated Contact rated Contact rated: 2 A at 250 V AC on resistive load.
Function Function Function: Alarm output Function Function
Action Action
Action Action: direct/reverse programmable by front Action
keyboard.
ALARM ALARM
ALARM ALARM ALARM
Action: Direct or reverse acting. Action Action Action Action
Alarm functions Alarm functions Alarm functions: configurable as process alarm, Alarm functions Alarm functions
band alarm or deviation alarm.
Alarm reset Alarm reset
Alarm reset Alarm reset: automatic reset, manual reset or Alarm reset
"Silence" function is programmable.
Stand by (mask) alarm Stand by (mask) alarm Stand by (mask) alarm Stand by (mask) alarm: the alarm can be Stand by (mask) alarm
configured with or without stand by (mask)
function.
Process alarm Process alarm
Process alarm Process alarm: Process alarm
Operative mode Operative mode Operative mode : High or low programmable. Operative mode Operative mode
Threshold Threshold : programmable in engineering unit within Threshold
Threshold Threshold
the readout span.
Hysteresis Hysteresis Hysteresis: programmable from 0.1 % to 10.0 % of Hysteresis Hysteresis
the readout span.
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19/04/2004, 15.07