Campbell HMP 35A User Manual

MODEL HMP35C TEMPERATURE ANDRELATIVE HUMIDITY PROBEINSTRUCTION MANUALREVISION: 1/99COPYRIGHT (c) 1990-1999 CAMPBELL SCIENTIFIC, INC.

HMP35C TEMPERATURE AND RH PROBE8TABLE 8. Wiring for Example 3Description Color CR10(X)Temperature Orange SE 3 (2H)Relative Humidity Green SE 4 (2L)Te

HMP35C TEMPERATURE AND RH PROBE9;Turn the HMP35C on.;05: Do (P86)1: 41 Set Port 1 High;Yellow wire (C1);Pause 150 milliseconds, before making the meas

HMP35C TEMPERATURE AND RH PROBE10TABLE 9. Wiring for Example 4Description Color CR10(X)Temperature Orange SE 3 (2H)Relative Humidity Green SE 4 (2L)T

HMP35C TEMPERATURE AND RH PROBE11;Compute the saturation vapor pressure in kPa. The temperature must be in degrees Celsius.;06: Saturation Vapor Pres

HMP35C TEMPERATURE AND RH PROBE12TABLE 11. Temperature, Resistance, andDatalogger OutputTemperature(°C)Resistance(Ω)Output(°C)-40.00 4067212 -39.18-3

WARRANTY AND ASSISTANCEThe HMP35C TEMPERATURE AND RELATIVE HUMIDITY PROBE is warranted by CAMPBELLSCIENTIFIC, INC to be free from defects in materials

1MODEL HMP35CTEMPERATURE AND RELATIVE HUMIDITY PROBE1. GENERAL DESCRIPTIONThe HMP35C Temperature and RelativeHumidity probe contains a thermistor for

HMP35C TEMPERATURE AND RH PROBE2FIGURE 1. Error Produced by Polynomial Fit to Published Values3. INSTALLATIONThe HMP35C must be housed inside a radi

HMP35C TEMPERATURE AND RH PROBE3FIGURE 3. HMP35C with UT018 Mounting Bracket and Crossarm andUT12VA Radiation Shield Mounted on a UT30 TowerFIGURE 4.

HMP35C TEMPERATURE AND RH PROBE44. WIRINGConnections to Campbell Scientific dataloggersare given in Table 3. The probe is measured bytwo single-ende

HMP35C TEMPERATURE AND RH PROBE5;Pause 150 milliseconds, before making the measurement, so the;probe can stabilize on the true relative humidity.;03:

HMP35C TEMPERATURE AND RH PROBE6Example 2. Sample CR10(X) Program measuring HMP35C Temperatureusing DC Half Bridge with Delay;Measure the HMP35C ther

HMP35C TEMPERATURE AND RH PROBE7;Measure the HMP35C relative humidity.;07: Volt (SE) (P1)1: 1 Reps2: 5 2500 mV Slow Range;CR500 (2500 mV); CR23X (1000