Alarms & Diagnostics - Thermo Scientific BF51728 Installation And Operational Manual

| Main Controller: 1x8 & 5x16 Segment Programmable
Chapter 6
|
6-36
330985H01
To Apply an Offset
Connect the input of the controller to the source device which you wish to calibrate to. Set
the source to the desired calibration value. The controller will display the current
measurement of the value. If the display is correct, the controller is correctly calibrated
and no further action is necessary. If you wish to offset the reading:
1. Enter Level 2; refer to section "To Enter Level 2" for steps to enter Level 2.
2. Press SCROLL button to scroll through the parameter list until 'PV.OFS'
displayed.
3. Press UP button or DOWN
Alarms & Diagnostics
Alarms are used to alert an operator when a pre-set level has been exceeded. They are
indicated by a scrolling message on the display and the red ALM beacon.
Alarm Indication & Acknowledgment
Alarm Indication & Acknowledgement should go before Sensor Break.
If an alarm occurs the red ALM beacon will flash, a scrolling message will give the

source of the alarm and the alarm (relay) output will operate. A typical default
message will show the source of the alarm followed by the type of alarm. For
example, 'ALARM 1 FULL SCALE HIGH'. If more than one alarm is present further
messages are flashed in turn in the main display. The alarm indication will continue
while the alarm condition is present and is not acknowledged.
ALM beacon on continuously = alarm has been acknowledged.

Press DOWN button and UP

the alarm is still present the ALM beacon lights continuously.
The action which takes place depends on the type of alarm configured:
button to set the required offset value.
button together to acknowledge an alarm. If
1100°C Box Furnace