Lake Shore Model 218 Temperature Monitor User’s Manual
4-6
Operation
Input Type (Continued)
Use the Data Selection keys to cycle through the different sensor types for Input group 5-8. When the
desired type appears, press
Enter
. The third display in the setting sequence appears.
Use the Data Selection keys to turn the displayed input On or Off, then press
Enter
to advance to the
next input. Turn all unused inputs off for maximum reading rate. Press
Escape
at any time to return to
the normal display. The instrument retains values changed prior to pressing
Escape
.
After setting all Input Type parameters, the normal display appears. The message “Disabled” appears
in the display location of any inputs that are turned off.
Table 4-1. Sensor Input Type Display Messages
Display Message
Sensor Type
2.5V Diode
Silicon Diode
7.5V Diode
GaAlAs Diode
250 Ohm Plat.
100
Ω
Platinum RTD <675 K;
Rhodium-Iron RTD
500 Ohm Plat.
100
Ω
Platinum RTD >675 K
5k Ohm Plat.
1000
Ω
Platinum RTD
Cernox
Any NTC RTD 0–7500
Ω
;
Germanium; Carbon Glass;
Cernox; Rox; Thermox