Lake Shore Model 218 Temperature Monitor User’s Manual
Operation
4-1
CHAPTER 4
OPERATION
4.0 GENERAL
This chapter covers Model 218 front panel operation. Display Screen Description in Paragraph 4.1,
Keypad Description in Paragraph 4.2, Turning Power On in Paragraph 4.3, Display Setup in
Paragraph 4.4, Input Type in Paragraph 4.5, Curve Select in Paragraph 4.6, Math in Paragraph 4.7,
Analog Outputs in Paragraph 4.8, Alarm Setup and Operation in Paragraph 4.9, Alarm Reset in
Paragraph 4.10, Relay Setup in Paragraph 4.11, Locking The Keypad in Paragraph 4.12, and
Model 218 Reset in Paragraph 4.13.
F-218-4-1.eps
Figure 4-1. Model 218 Front Panel
4.1 DISPLAY SCREEN DESCRIPTION
The Model 218 has a 4-line by 20-character backlit LCD. During normal operation it is divided into eight
reading locations. Each of the eight reading locations can be configured by the user with the Display
Format feature. Data from a sensor input can be displayed in any location. Sensor readings can be
displayed in temperature or sensor units. Results of the math feature can be displayed at the same time
as live readings. The reading location indicates the number of the sensor input to the left of the reading
value. The character to the right of the reading value indicates units for live readings or shows an
annunciator for one of the math values. The column of characters on the far right side of the display is
used for system annunciators. See Figure 4-2. During keypad operation, display format changes to
prompt for data entry.