ircon Modline 5, Руководство по эксплуатации

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Sensor Wiring
72
Rev. L6 Feb 2017
Modline 5
4.7.9 Peak/Hold Switch for Remote Peak Picker Reset, Track and Hold or Laser
Operation.
An external switch connected to the Pk/Hd Switch terminals will control signal conditioning of the
Modline 5. These terminals can also be used for remote Laser activation.
Switch action for the Peak Picker will provide the following control. Momentary closure of the switch
(>0.08 second) immediately resets the Peak Picker. If the switch is continuously closed, the Temperature
Display will show direct readings without any Peak Picker signal conditioning. The switch may be
manually operated or it may be a contact on a timer, relay, or any other process operated switch.
Switch action for Track and Hold will provide the following control. With the switch open, temperature
tracking continues (Track). With the switch closed, the displayed temperature will be held at the last
reading (Hold). The switch may be manually operated or it may be a contact on a timer, relay, or any
other process-operated switch.
Remote Laser Operation is selected in COMMS – LASR Menu. See manual Sections 5.8 COMM – Setup
of RS-485 Digital Communication Configuration , page 95 and 5.11 Laser Sighting Operation , page 102
for selecting and operating the remote laser function. The PkHd terminals are dedicated to Laser
operation when selected. To wire for remote PkHd switch operation follow the diagram given below.
Figure 65
4.7.10 Sensor Alarm Relay Contacts
The sensor tests its case temperature, detector assembly temperature, output current flow, etc. The
Check function checks internal circuit and detector operation. The optional Dirty Window Detector
measures the Sensor’s window condition. One or more out of limit conditions sensed by these tests
triggers an Alarm and operates the Alarm relay within the Modline 5. The relay contacts may be used
in the process control system to indicate measurement conditions do not allow process temperature
measurements or Sensor operation may be impaired. Appropriate action for the various conditions can
then be initiated.
Alarm Relay contact connections are made to the Alarm Relay Terminals. The relay contact is rated for
24 Volts AC or DC, 1 AMP resistive loads only.
The Alarm relay can be configured for Normally Open or Normally Closed operation. The configuration
can be performed at the Sensor Rear panel with the Engineering RELY function, or with RS-485 digital
communications.
Set the relay operation to correspond to proper and safe use of the contacts in your overall measurement
system.
Select N C. for closed relay operation with Sensor not in Alarm condition (open in alarm state).
Violet
Violet/White
Remote
Laser Switch
Pk/Hd Switch
Pk/Hd Switch