ENMET MX-42A - Manual (Page 13)

MX42A C ONTROL ENMET Corporation
9
4.1 Configuration of Alarms and Servocontrol
C AUTION : The procedures and adjustments described in the following sections must be performed by authorized
personal. Failure to follow instructions may jeopardize accurate measurements.
4.2 Characteristics of alarm triggering
There are three alarm thresholds associated with each channel:
Threshold 1 controls Alarm 1 LED and relay 1.
Threshold 2 controls Alarm 2 LED and relay 2.
Threshold 3 controls Alarm 3 LED and the CR relay (common relay).
N OTE : The CR relay is common to all channels.
For each channel, a block of microswitches is located on the display board and is used to program the characteristics of
alarm thresholds and operation of each channel. See F
IGURE 7 and Table 1.
1 2 3 4 5 6 7 8 9 10
Example of Microswitch in normal operation mode, grayed areas indicated position of each switch
• Microswitch position 1: Sets the triggering of alarms 2 & 3 by increasing or decreasing values.
D OWN is for increasing value and U P if for decreasing value. Down is normal
• Microswitch position 2: Is used to set alarm 3 on either delay time or averaging.
D OWN is delay time: See microswitches 9 & 10 for setting time delay
U P is averaging: Is set to time delay at the factory.
• Microswitch position 3: Is used to set clearance of audio Alarms 1 and 2 to latching or non-latching:
D OWN is latching/manual clearance:
When a threshold is reached, the LED and relay are activated.
When a threshold decreases, the signals are deactivated by manually pressing
BUZZER button.
U P is non-latching/automatic clearance :
When a threshold is reached, the associated LED and relay are activated. When the threshold decreases, the
signals are automatically deactivated. This is the factory set position.
N OTE : Alarms 1 and 2 are set together to the same condition, alarm 3 has automatic clearance
• Microswitch position 4: Sets the triggering of alarms 1 by increasing or decreasing values.
D OWN is for increasing value and U P is for decreasing value. Down is normal
• Microswitch position 5: Is used for European parking garage regulations.
D OWN is normal operation and U P parking garage mode.
• Microswitch position 6: Is used to set control in adjustment or calibration mode.
D OWN is for adjustment of display settings and U P is for calibration of sensor/transmitter.
N OTE : microswitch 6 is disabled when microswitch 7 is in normal operation mode.
• Microswitch position 7: Is used to place the channel in normal operation or maintenance mode.
D OWN is maintenance mode and U P is normal operation.
• Microswitch position 8: Is used to place channel in operation or take it out of operation.
D OWN is in operation and U P is out of operation.
• Microswitch position 9 & 10: Are used to set the time delay of alarm 3rd relay common to the channels.