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
