Blue Sea Systems M2 Instructions Manual page 6

Other Display Indications
The dotted lines in T4 indicate the Hi and Lo Alarm Levels. The Hi and Lo Relay levels are not shown.
If Display MinMax is on, then split triangles on the right side of the each graph indicate the minimum and maximum levels levels that sensor has
measured. A single triangle indicates that the minimum and maximum levels are close to each other.
The following temperature error messages may be displayed under certain error conditions.
HI -- The temperature is greater than 275°F (135°C).
LO -- The temperature is less than -40°F (-40°C).
NC -- The temperature sensor is not connected.
Configuring the Meter
Meter settings can be configured from the Setup menu. This menu can be accessed by pressing the Menu button and then scrolling to and selecting
Setup. Press the UP ↑ ↑ and DOWN ↓ ↓ arrow buttons to move the cursor. The different setup options are described below.
ALARM SETUP & CONTROL
The meter's alarm can be set to trigger based on High or Low temperature levels. Alarms can be set from the Alarm Setup menu.
To get there, first navigate to the Setup menu. Then scroll to Alarm Setup and press the Select button.
Setting Alarms
The M2 Meter family provides monitoring capability of temperature input channels. Alarms are triggered if a channel is above or below a certain user
selected threshold value. The following example indicates how to setup an over temperature alarm.
1. Go to the Alarm Setup menu.
2. Scroll to the desired input channel (i.e., Temp. 1 Hi).
3. Press the Select button and the cursor should start blinking.
4. Set the temperature threshold using the ← ← and → → buttons (Holding down the buttons allows faster selection).
5. Press the Enter button to save the change or the Cancel button to cancel any change.
NOTE: A low temperature level threshold cannot be set above a high temperature threshold. Likewise, a high temperature threshold cannot be set
below the low temperature threshold. The meter will automatically increase or decrease the temperature settings to enforce this.
NOTE: The display can be changed from °F to °C in the Display Setup screen.
NOTE: The alarm levels are graphically displayed on the main menu screen.
Temp Delay (Alarm)
Set the Alarm hold off time in minutes. The hold off timer operates as a count-up/count-down timer. When the temperature exceeds the alarm value then
the timer will start counting up until it reaches the delay time. When it reaches the delay timer, an alarm will sound. If the alarm condition goes away
before the delay timer has been met, then the timer will count down until the timer is zero again. For example, if the Alarm Delay is set for 5 minutes and
an alarm condition is active for 4 minutes and then inactive for 1 minute then if the alarm condition is active again, the alarm will sound in 2 minutes (5
minutes - 4 minutes + 1 minute). Note that there is only one delay per channel.
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