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Model 109SS Temperature Probe 

1.1  Specifications 

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:  150 ft (63 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. 

NOTE 

Summary of Contents for TEMPERATURE PROBE 109SS

Page 1: ...Model 109SS Temperature Probe Revision 12 10 C o p y r i g h t 1 9 8 3 2 0 1 0 C a m p b e l l S c i e n t i f i c I n c...

Page 2: ...International customers residing in countries served by Campbell Scientific Inc directly Affiliate companies handle repairs for customers within their territories Please visit www campbellsci com to...

Page 3: ...am for CR200 X Series Datalogger 6 5 1 1 2 Example 2 Sample Program for CR1000 Datalogger 6 5 1 1 3 Sample Program for CR5000 7 5 2 Edlog 7 5 2 1 Example Edlog Program 7 5 3 Electrical Noisy Environme...

Page 4: ......

Page 5: ...fast time response This probe measures temperature from 40 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...

Page 6: ...nformation 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...

Page 7: ...6 C over the range of 40 to 70 C and 0 49 C over the range of 20 C to 70 C The major error component is the interchangeability specification tolerance of the thermistor The bridge resistor has a 0 1 t...

Page 8: ...d with one single ended input channel and a Voltage Excitation channel Multiple probes can be connected to the same excitation channel the number of probes per excitation channel is physically limited...

Page 9: ...rm109 is used to measure temperature Therm109 provides excitation makes a single ended voltage measurement and calculates temperature The Therm109 instruction has the following form Therm109 Dest Repe...

Page 10: ...0 EndTable BeginProg Scan 1 sec Measure the temperature Therm109 Air_Temp 1 1 Ex1 1 0 0 Call the data table CallTable AvgTemp NextScan EndProg 5 1 1 2 Example 2 Sample Program for CR1000 Datalogger C...

Page 11: ...the resistance lnRt Log Rtherm Apply the Steinhart and Hart equation and convert to degrees C in one step Air_Temp 1 1 129241e 3 2 341077e 4 lnRt 8 775468e 8 lnRt 3 273 15 Call the data table CallTab...

Page 12: ...c V_Vx 7 1 0 Mult 8 0 0 Offset 2 Z 1 X P42 1 1 X Loc V_Vx 2 2 Z Loc Vx_V 3 Z X F P34 1 2 X Loc Vx_V 2 1 F 3 3 Z Loc Vx_V_1 4 Z X F P37 1 3 X Loc Vx_V_1 2 24900 F 3 4 Z Loc Rtherm 5 Z LN X P40 1 4 X Lo...

Page 13: ...integration options are not available for the CR200 X 5 4 Long Lead Lengths Additional settling time may be required for lead lengths longer than 300 feet where settling time is the delay before the m...

Page 14: ...sary for general operation of the 109SS Probe with CSI s dataloggers The Therm109 Instruction outputs a 2500 mV excitation and measures the voltage across the 24 9 K resistor Figure 6 1 The thermistor...

Page 15: ...on form and comply with the requirements specified in it Refer to the Warranty and Assistance page for more information 8 Troubleshooting Symptom Temperature is NAN INF 9999 273 Verify the red wire is...

Page 16: ...stable Temperature Try using the 60 Hz or 50 Hz integration options and or increasing the settling time as described in Sections 8 and 9 Make sure the clear shield wire is connected to datalogger grou...

Page 17: ......

Page 18: ...p CSC 11564 149th Street NW Edmonton Alberta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Centro Caribe S A CSCC 300 N Cementerio Edificio Breller Santo Domingo Her...

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