Campbell Manufacturing TEMPERATURE PROBE 109SS User Manual

Temperature Range:  -40° to +70°C 

Survival Range:  -50° to +100°C (thermistor); -50°C to +70°C (overmolded 
joint and cable) 

Thermistor Interchangeability Tolerance:  
 

Temperature Tolerance 

 -40°C 

±0.6°C 

 0°C 

±0.38°C 

 25°C 

±0.1°C 

 50°C 

±0.3°C 

 70°C 

±0.45°C 

Time Constant:  
 

Fluid 

τ 

 

 

Still Air 

31 seconds 

 

Air @ 3 meter/second 

7.5 seconds 

 

Antifreeze/Water Rolling  0.5 seconds 

Water submersion depth:  50 feet (21 psi) 

Linearization Error:  Steinhart & Hart equation; maximum error is 0.02°C  

at -40°C. 

Maximum Lead Length:  1000 ft 

Other Information: 

Thermistor:  BetaTherm - Micro-BetaCHIP Probe 10K3MCD1 0.018" 

diameter, 10Kohms at 25 C 

Probe: 
 

stainless steel sheath 0.063 inch (0.16 cm) diameter, 2.3 inch (5.84 cm) length 

 

overmolded joint 0.40 inch (1.02 cm) diameter, 1.67 inch (4.24 cm) length 

Cable:  Santoprene 0.220 inch diameter 

Cable/probe connection:  "ATUM" heat shrink, "Macromelt" overmolded joint 

Weight:  0.2 lbs/10 1/2 ft cable 

The black outer jacket of the cable is Santoprene

® 

rubber.  This 

compound was chosen for its resistance to temperature extremes, 
moisture, and UV degradation.  However, this jacket will 
support combustion in air.  It is rated as slow burning when 
tested according to U.L. 94 H.B. and will pass FMVSS302.  
Local fire codes may preclude its use inside buildings.