button will turn on/off the unit being monitored and the MR1. With DIP switch #2 in the OFF position, pressing the ON/OFF button will turn toggle the on/off operation of the MR1 only.
Setpoint Control
There are two hidden buttons on the MR1 keypad. These buttons are not labeled on the display to prevent untrained personnel from accessing unit settings.
Figure 5. Display Panel
The F/C button will toggle between degrees Fahrenheit and degrees Celsius for the temperature display.
The SET button will put the MR1 in the set mode. The SET icon in the upper left of the LCD will be displayed along with other icons to indicate which setpoint is being viewed or changed. Use the /SCAN and the /HOLD buttons to change the setpoint. The display will change with each key press to indicate the new value of the setpoint. If the value does not change, then the environmental unit is not accepting the new value because it is out of range. The displayed value is always the actual setpoint in the environmental unit. There are 8 setpoints that can be changed. The SET button is pressed to advance to the next setpoint. After all 8 setpoints have been stepped through, the MR1 will go back to the normal display mode. The SILENCE button can be pressed at any time to exit the set mode.
The 8 setpoints are: |
|
| |
1. | Temperature Setpoint | 5. | High Temp Alarm |
2. | Temperature Sensitivity | 6. | Low Temp Alarm |
3. | Humidity Setpoint | 7. | High Hum Alarm |
4. Humidity Sensitivity | 8. | Low Hum Alarm | |
Note that the temperature sensitivity is in tenths but there is no decimal point on the MR1 display so, for example 1.4 is displayed as 14.
Refer to Table 3 for availability by microprocessor of setpoint control:
10 • User Manual
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