Operating manual
Thermohygrometer
HD2301.0
www.deltaohm.com
English
Ke e p for fut ur e r e fe r e nce .
Page 1: ...Operating manual Thermohygrometer HD2301 0 www deltaohm com English Keep for future reference...
Page 2: ...000 PROBES 13 DIRECT CONNECTION OF 4 WIRE Pt100 SENSORS 15 W ARNI NGS 1 6 I NSTRUMENT SI GNALS AND FAULTS 1 7 LOW BATTERY W ARNI NG AND BATTERY REPLACEMENT 1 8 WARNING ABOUT BATTERY USE 18 I NSTRUMENT...
Page 3: ...ument calculates and displays the following data absolute humidity dew point partial vapour pressure The probes are fitted with the automatic detection SICRAM module with the factory calibration setti...
Page 4: ...HD2301 4 V1 7 Therm ohygrom eter HD2 3 0 1 0...
Page 5: ...s the measurement display during normal operation in the menu increases the current value 8 UNI T MENU key it allows selection of the unit of measurement when pressed together with the DATA key it all...
Page 6: ...turning on enables all display segments for a few seconds starts an Auto test including the detection of the probe connected to the input and sets the instrument ready for normal measurement MIN cm m...
Page 7: ...he acquisition of new samples by pressing this key again the minimum MIN value is displayed by pressing this key a third time the average AVG value is displayed The acquisition frequency is once a sec...
Page 8: ...erature measurement blinks Use the and arrows if you wish to change the temperature display from degrees Celsius C to degrees Fahreneit F or vice versa Confirm by pressing the UNIT key or wait for the...
Page 9: ...is configured by the instrument and cannot be modified by the user If the direct 4 wire Pt100 probes and the Pt1000 probes that are not manufactured by Delta OHM are connected to the instrument the N...
Page 10: ...Y The humidity probes are humidity and temperature combined probes the humidity sensor is a capacitative type sensor the temperature sensor is a Pt100 The instrument measures relative humidity RH and...
Page 11: ...drops of solution inside the measuring chamber dry them with some blotting paper 5 Insert the probe in the container making sure the cap at the base is screwed well The m easuring cham ber m ust be cl...
Page 12: ...mber cannot reach its saturation anymore For the saturated solutions at 75 RH check that the salt is not dry crystallized in order to reach the saturation it needs to be wet 5 Storage of the saturated...
Page 13: ...E when measuring the temperature on frozen blocks it is convenient to use a mechanical tool to bore a cavity in which to insert the tip probe In order to perform a correct contact measurement the meas...
Page 14: ...tin bead for some type of sensors 1 2 3 4 Pt100 3 wires Pt1000 Ni1000 Not Used Caution Before welding pass the probe cable through the fairlead and gasket 6 Weld the wires as shown in the table Sensor...
Page 15: ...be soldered directly to the pins of the flying female connector without making use of the TP47 board The 4 wires of the Pt100 sensors have to be soldered as indicated in the figure on the left In orde...
Page 16: ...C avoid violent blows or thermal shocks to Platinum temperature probes as this could cause irreparable damage 9 To obtain reliable measurements temperature variations that are too rapid must be avoid...
Page 17: ...is appears if the probe has already been detected by the instrument but is disconnected At the same time an intermittent beep is issued FUNC CLRD Max min and average values cleared NEW PROBE DET This...
Page 18: ...urn the instrum ent back on To replace the batteries proceed as follows 1 switch the instrument off 2 unscrew the battery cover counter clockwise 3 replace the batteries 3 1 5V alkaline batteries type...
Page 19: ...ent in places where humidity is high the instrument may be exposed to direct sunlight the instrument may be exposed to a source of high temperature the instrument may be exposed to strong vibrations t...
Page 20: ...tional safety of the instrument can only be guaranteed under the environmental and electrical operating conditions that are in specified in chapter TECHNICAL CHARACTERISTICS Do not use or store the pr...
Page 21: ...t condensation Protection degree I P6 7 Power Batteries 3 1 5V type AA batteries Autonomy 200 hours with 1800 mAh alkaline batteries Power absorbed with instrument off 20 A Connections Input for probe...
Page 22: ...70 C 250 C TP49AP I Penetration 70 C 250 C TP8 7 5 I Globe thermometer 150 mm 30 C 120 C TP8 7 6 I Globe thermometer 50 mm 30 C 120 C TP8 7 O Immersion 50 C 200 C Common characteristics Resolution 0 0...
Page 23: ...C 150 C 0 3 C HP4 7 5 ACR Pt100 0 100 RH 40 C 150 C 0 3 C HP4 7 5 AC1 R Pt100 0 100 RH 40 C 180 C 0 3 C HP4 7 7 DCR Pt100 0 100 RH 40 C 100 C 0 3 C HP4 7 8 ACR Pt100 0 100 RH 40 C 150 C 0 3 C HP4 8 0...
Page 24: ...8 x 4 mm length 520 mm HP4 7 8 ACR Combined probe RH and temperature Connection cable length 5 m Stainless steel stem 14 x 130 mm HP4 8 0 RH and Temperature probe for compressed air systems Supplied c...
Page 25: ...4 7 3 P O Penetration probe sensor Pt100 Stem 4 mm length 150 mm Cable length 2 metres TP4 7 4 C O Contact probe sensor Pt100 Stem 4 mm length 230 mm contact surface 5 mm Cable length 2 metres TP4 7 5...
Page 26: ...direct 4 wires Probe s stem 3 mm length 70 mm 4 wire connection cable with connector length 2 metres TP8 7 1 0 0 0 O Immersion probe sensor Pt1000 Probe s stem 3 mm length 70 mm 4 wire connection cab...
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Page 28: ...anty included in the manual of the product For any dispute the competent court is the Court of Padua The Italian law and the Convention on Contracts for the International Sales of Goods apply TECHNI C...
