Campbell Scientific HMP60 HMP60 Temperature and Relative Humidity Probe
Campbell Scientific HMP60 Manual
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- Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 1
HMP60 Temperature and Relative Humidity Probe Revision: 7/12 C o p y r i g h t © 1 9 9 5 - 2 0 1 2 C a m p b e l l S c i e n t i f i c , I n c . - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 2
- Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 3
BY CAMPBELL SCIENTIFIC, INC. are warranted by Campbell Scientific, Inc. ("Campbell") to be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless otherwise specified in the corresponding Campbell pricelist or product manual - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 4
problem, an RMA number will be issued. Please write this number clearly on the outside of the shipping container. Campbell Scientific's shipping address is: CAMPBELL SCIENTIFIC customer at the customer's expense. Campbell Scientific reserves the right to refuse service on products that were exposed - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 5
HMP60 Table of Contents PDF viewers: These page numbers refer to the printed version of this document. Use CR10(X) Program that Computes Vapor Pressure and Saturation Vapor Pressure ...16 8. Maintenance ...17 8.1 Procedure for Removing RH Chip ...17 9. Troubleshooting ...18 10. References ...18 i - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 6
41303-5A Radiation Shield on a tripod mast ...3 HMP60 and 41303-5A Radiation Shield on a CM202 Crossarm...4 HMP60 and 41303-5A Radiation Shield...4 HMP60 wiring ...11 Exploded view of HMP60 (as shipped)...17 Tables 5-1. 7-1. 7-2. 7-3. 7-4. 7-5. Recommended Lead Lengths ...8 Datalogger Connections - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 7
cable is suspected, consult with a Campbell Scientific applications engineer. Although the HMP60 is rugged, it should be handled as a precision scientific instrument. The black outer jacket of the and cable length are received. The HMP60 is shipped with an instruction manual or a ResourceDVD. • 1 - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 8
Temperature and Relative Humidity Probe 4. Quickstart 4.1 Step 1 - Mount the Probe Review Section 7, Installation for complete instructions. To install the HMP60, you will need 1. 2. 3. 4. 5. 6. 41305-5A 6-plate Radiation Shield 1/2" open end wrench small screw driver provided with datalogger - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 9
HMP60 Temperature and Relative Humidity Probe Yellow Shipping Cap (remove before installation) FIGURE 4-1. HMP60 as shipped FIGURE 4-2. HMP60 and 41303-5A Radiation Shield on a tripod mast 3 - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 10
HMP60 Temperature and Relative Humidity Probe FIGURE 4-3. HMP60 and 41303-5A Radiation Shield on a CM202 Crossarm Mounting Clamp FIGURE 4-4. HMP60 and 41303-5A Radiation Shield 4 - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 11
2 - Use SCWin Short Cut to Program Datalogger and Generate Wiring Diagram The simplest method for programming the datalogger to measure the HMP60 is to use Campbell Scientific's SCWin Short Cut Program Generator. 1. Open Short Cut and click on New Program. 2. Select a datalogger and scan interval - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 12
and Relative Humidity Probe 3. Select HMP50/HMP60 Temperature and Relative Humidity Sensor then click the right arrow to add it to the list of sensors to be measured. 4. Define the name of - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 13
and Relative Humidity probe contains a Platinum Resistance Temperature detector (PRT) and a Vaisala INTERCAP® capacitive relative humidity sensor. The -L option on the model HMP60 Temperature and Relative Humidity probe (HMP60-L) indicates that the cable length is user specified. Cable length is - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 14
HMP60 Temperature and Relative Humidity Probe TABLE 5-1. Recommended Lead Lengths 2 m Height Mast/Leg -weight tripod. The probe's cable can terminate in Pigtails that connect directly to a Campbell Scientific datalogger (option -PT). Connector that attaches to a prewired enclosure (option -PW). - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 15
HMP60 Temperature and Relative Humidity Probe Probe Body Diameter: Filter: Filter Diameter: 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 - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 16
10-plate shield if additional hardware is used. A 41322 Adapter Plate allows the HMP60 to be mounted in the lower part of the 41003-5 10-plate shield. 41381 extension tube and the 6637 split nut plug can be used to mount the HMP60 in a higher part of the 41003-5; the #41381 cable is also required. - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 17
Humidity Signal Signal & Power Reference Power Shield FIGURE 7-1. HMP60 wiring TABLE 7-1. Datalogger Connections CR800, CR3000, CR200(X), Single-Ended Input Single-Ended Input 12 V 7.3 Wiring Connections to Campbell Scientific dataloggers are given in Table 7-1. The probe is measured by two - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 18
Temperature and Relative Humidity Probe The temperature and relative humidity signals from the HMP60 are measured using two single-ended analog measurements (VoltSE() in CRBasic or Instruction 1 in Edlog). The probe output scale is 0 to 1000 millivolts for the temperature range of -40° to +60°C and - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 19
mV); CR23X (1000 mV); 21X, CR7 (5000 mV) ;Black wire (SE 3), Blue wire (G) ;Measure the HMP60 relative humidity. ; 02: Volt (SE) (P1) 1: 1 Reps 2: 5 2500 mV Slow Range 3: 4: not required for the general operation of the HMP60 with Campbell Scientific's dataloggers. The signal reference and the power - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 20
and relative humidity because the difference between the signal and signal reference, at the datalogger, has increased by Vd. 7.6 Absolute Humidity The HMP60 measures the relative humidity. Relative humidity is defined by the equation below: RH = e ∗ 100 es (2) where RH is the relative humidity - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 21
HMP60 Temperature and Relative Humidity Probe VaporPressure() instruction to calculate vapor pressure 1 (1H) SE 2 (2H) G 12 V 7.6.1 CR1000 Vapor Pressure Example The VaporPressure() instruction has the following syntax: VaporPressure(Dest,Temp,RH) Where: Dest-the variable in which the results of - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 22
;See Table 7-2 for alternate offsets ;CR510 (2500 mV); CR23X (1000 mV); 21X, CR7 (5000 mV) ;Black wire (SE 3), Blue wire (G) ;Measure the HMP60 relative humidity. ; 02: Volt (SE) (P1) 1: 1 Reps 2: 5 2500 mV Slow Range 3: 4: 5: 6: 4 2 .001 0 SE Channel Loc [ RH_frac ] Mult Offset ;CR510 (2500 mV - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 23
repeat rinsing. Protective Cap and Filter Shipping Cap (remove prior to installation) 9598 RH Chip FIGURE 8-1. Exploded view of HMP60 (as shipped) The offset and gain on the HMP60 electronics can not be adjusted as part of a recalibration. Replace the RH chip as needed. 8.1 Procedure for Removing - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 24
and plug it in. 5. Screw on the protective cap. 9. Troubleshooting Symptom: NAN, -9999, or 0 % relative humidity 1. 2. Check that the sensor is wired to the correct analog input channels as specified by the measurement instructions. Verify the voltage range code for the single-ended measurement - Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 25
- Campbell Scientific HMP60 | HMP60 Temperature and Relative Humidity Probe - Page 26
Centro Caribe S.A. (CSCC) 300 N Cementerio, Edificio Breller Santo Domingo, Heredia 40305 COSTA RICA www.campbellsci.cc • [email protected] Campbell Scientific Ltd. (CSL) Campbell Park 80 Hathern Road Shepshed, Loughborough LE12 9GX UNITED KINGDOM www.campbellsci.co.uk • [email protected]
HMP60 Temperature and
Relative Humidity Probe
Revision: 7/12
C o p y r i g h t © 1 9 9 5 - 2 0 1 2
C a m p b e l l S c i e n t i f i c , I n c .