Campbell Manufacturing TEMPERATURE PROBE 109SS User Manual

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Model 109SS Temperature Probe 
1.  General 
The –L portion of this probe’s model number indicates the probe has a user-
specified lead length.  For readability purposes, the probe will be referred to as 
the 109SS throughout this document. 
The 109SS consists of a thermistor encased in a stainless-steel sheath.  The 
rugged stainless-steel sheath protects the thermistor allowing the 109SS to be 
buried or submerged in harsh, corrosive environments.  It also has a fast time 
response.  This probe measures temperature from -40°C to +70°C.  The 
thermistor can survive temperatures up to 100°C, but the overmolded joint and 
cable should not be exposed to temperatures greater than +70°C (see Figure  
1-1). 
 
 
 
 
 
Overmolded Joint 
Thermistor Encased in 
Stainless-Steel Sheath 
Santoprene-Jacketed Cable
FIGURE 1-1.  109SS Temperature Probe 
The 109SS probe is typically used with the CR200-series, CR800, CR850, 
CR1000, and CR3000 dataloggers which have a special instruction for 
measuring it.  The probe can also be measured with other Campbell Scientific 
dataloggers using generic measurement instructions. 
The 109SS ships with: 
(1) Resource CD