Instruction/ maintenance manual of the product 109SS Campbell Manufacturing
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Model 109SS Temperature Probe 9/08 Copyright © 1983-2008 Campbell Scientific, Inc..
Warranty and Assistance The MODEL 109SS TEMPERATURE PROBE FOR HARSH ENVIRONMENTS is warranted by CAMPBELL SCIENTIFIC, INC. to be free from defects in m aterials and workm anship under normal use and servi ce for twelve (12) months from date of shipm ent unless specified otherwise.
109SS Table of Contents PDF viewers note: These page numbers refer to the printed version of this document. Use the Adobe Acrobat® bookmarks tab for links to specific sections. 1. General ..............................................................
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Model 109SS Temperature Probe 1. General The –L portion of this probe’s m odel number indicat es the probe has a user- specified lead length. For readab ility purposes, the pr obe will be referred to as the 109SS throughout this docum ent. The 109SS consists of a thermistor encas ed in a stainless-steel sheath.
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.
Model 109SS Temperature Probe 2. Accuracy The overall probe accuracy is a combinati on of the thermi stor's interchangeability specification and the accuracy of the bri dge resistor. The Steinhart and Hart equation used to calculate temperature has a negligi ble error (Figure 2-1).
Model 109SS Temperature Probe 3. Installation and Wiring 3.1 Burial The 109SS is suitable for shallow burial onl y. It should be placed horizontally at the desired depth to avoid thermal conduction from the surface to the thermistor.
Model 109SS Temperature Probe The datalogger is programme d using eith er CRBasic or Edlog. Dataloggers that use CRBasic include our CR 200-series, CR800, CR850, CR1000, CR3000, CR5000, and CR9000(X); see Section 5.1. Dataloggers that use Edlog include our CR10, CR 10(X), CR23X, and CR7; refer to Secti on 5.
Model 109SS Temperature Probe 5.1.1.1 Sample Program for CR200 Series Datalogger 'CR200 Series Datalogger ‘This example program measures a single 109SS Thermist or Probe ‘once a second and stores the aver age temperature every 10 minutes.
Model 109SS Temperature Probe 5.1.1.3 Sample Program for CR5000 'CR5000 'This example program measures a single 109 Thermist or probe 'once a second and stores the aver age temperature every 10 minutes. 'Declare the variable for the temperature.
Model 109SS Temperature Probe Example Program for CR10X ;{CR10X} ; *Table 1 Program 01: 1 Execution Interval (seconds) 1: AC Half Bridge (P5) 1: 1 Reps 2: 25 2500 mV 60 Hz Reject ion Range 3: 1 SE Channel 4: 1 Excite all reps w/Exchan 1 5: 2500 mV Excitati on 6: 1 Loc [ V_Vx ] 7: 1.
Model 109SS Temperature Probe 9: Z=X+F (P34) 1: 8 X Loc [ Tk ] 2: -273.15 F 3: 9 Z Loc [ Air_Temp ] 10: If tim e is (P92) 1: 0 Minutes (Seconds --) into a 2: 10 Interval (same uni ts as above) 3: 10 S.
Model 109SS Temperature Probe 1: Excite-Delay (SE) (P4) 1: 1 Reps 2: 25 2500 mV 60 Hz Rejecti on Range (Delay must be zero) 3: 1 SE Channel 4: 1 Excite all reps w/Exchan 1 5: 2 Delay (0.01 sec units) 6: 2500 mV Excitati on 7: 3 Loc [V_Vx ] 8: .0004 Multiplier 9: 0.
Model 109SS Temperature Probe The resistance of the thermistor is: ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ − = 1 900 , 24 V V R EX t The Steinhart and Hart equation i s used to calculate temperature from Resistance: 3 )) (ln( ) ln( 1 T T K R C R B A T + + = Where T K is the temperature in Kelvin .
Model 109SS Temperature Probe 12 Symptom: Unstable Tem perature Try using the 60 or 50 Hz integr ation option s, and/or increasing the settling time as descri bed in Sections 8 and 9. Make sure the clear shiel d wire is connected to datalogger ground, and the dat alogger is properly grounded.
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Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 Nort h Logan, Utah 84 321 UNITED STATES www.campbellsci.com info@campbellsci.com Campbell Scientific Afri ca Pty. Lt d. (CSAf) PO Box 2450 Somerset West 7129 SOUTH AFRICA www.
An important point after buying a device Campbell Manufacturing 109SS (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Campbell Manufacturing 109SS yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Campbell Manufacturing 109SS - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Campbell Manufacturing 109SS you will learn all the available features of the product, as well as information on its operation. The information that you get Campbell Manufacturing 109SS will certainly help you make a decision on the purchase.
If you already are a holder of Campbell Manufacturing 109SS, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Campbell Manufacturing 109SS.
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