Related Manuals for Rotronic HygroPalm Series
Summary of Contents for Rotronic HygroPalm Series
- Page 1 HygroPalm Portable Humidity Temperature Indicator Instruction Manual V4.0 in-hypalm-v40 / 20051205...
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Page 2: Table Of Contents
Note: both instrument configuration and adjustment of the HygroClip probes require a PC with the optional ROTRONIC HW3 or HW4 software. Instructions for using the software are not included in this manual. These instructions are shipped separately on the software CD ROM. -
Page 3: Overview
(1-point or multi-point) remote mode reads the measurements, configuration and status from any ROTRONIC HygroFlex transmitter remote mode allows a 1-point calibration of a ROTRONIC HygroFlex 2 or 3 transmitter, using any 2) 3) probe connected to the HygroPalm as a reference RS232 digital port for connecting to the COM port of a PC uses a fixed barometric pressure value for those parameters that require pressure as a computational input. - Page 4 (1-point or multi-point) remote mode reads the measurements, configuration and status from any ROTRONIC HygroFlex transmitter remote mode allows a 1-point calibration of a ROTRONIC HygroFlex 2 or 3 transmitter, using any 3) 4) probe connected to the HygroPalm as a reference...
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Page 5: General Description
Probes and Probe Inputs Model HygroPalm 1 HygroPalm 2 HygroPalm 3 Number of probe inputs Probe types ROTRONIC Digital ROTRONIC Digital ROTRONIC Analog Third-Party Analog Number of digital input channels Number of analog inputs channels 2 x 2 Analog input A/D resolution... - Page 6 These probes permit to take full advantage of all the features and functions of the HygroPalm. The ROTRONIC HygroClip digital probes are highly accurate and are calibrated entirely by means of software (no adjustment potentiometers). Because calibration and other data are stored in the probe non- volatile memory, the probes are fully interchangeable.
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Page 7: Rs232 Serial Output
Use of analog probes is subject to the following restrictions and limitations: a. ROTRONIC analog humidity-temperature probes with the standard temperature output signal of – 0.5…2.0 V = -50…200 °C: because the HygroPalm cannot read a negative voltage signal, temperature measurement is generally limited to values above freezing. -
Page 8: Unit System
Page 8 of 33 Unit System The unit system of the HygroPalm (Metric or English) is factory programmed as specified when the instrument was ordered. The unit system is easily changed by the user directly from the keypad (Menu, Settings). The optional HW3 or HW4 software can also be used to change the unit system: Display The LC display shows which probe input is being displayed (small indicator on top of the display) and up... -
Page 9: Keypad
Page 9 of 33 Keypad ON/OFF: Turns the instrument on or off and also controls the HOLD function MENU: Press this key to activate the Function Menu. The different menu items appear on the LCD message line. Press this key again to exit the menu UP / DOWN: Press one of these keys to change the probe... -
Page 10: Installation And Removal Of The Hygroclip Probe (Probe Input 1)
Page 10 of 33 Installation and removal of the HygroClip probe (probe input 1) Both the HygroClip probe and the base of the connector (probe input 1) are marked with a dot. The locking ring is marked with 2 dots. The probe can be inserted straight into the connector (or removed from the connector) when all dots are aligned. -
Page 11: Hygropalm Function Menu
Page 11 of 33 HygroPalm Function Menu To access the HygroPalm function menu, press the MENU key. The first menu item appears on the message line of the LC display. Use the UP or the DOWN key to navigate the menu. When the desired menu item appears on the message line of the LC display, press the ENTER key to select. -
Page 12: Display
Note: this function is not available with the HygroPalm 1 Definition The Adjust M.PT function permits the full calibration of any ROTRONIC HygroClip digital probe against a known reference environment. This function is designed to permit calibration at 2 temperature values and at up to 4 relative humidity values. - Page 13 For best accuracy, we recommend using a T-low value close to 20°C (68°F). When calibrating relative humidity (2, 3 or 4 points) with the ROTRONIC humidity standards, always follow the sequence 35 %RH, 80 %RH, 10 %RH or 5 %RH, 0 %RH. When using a reference other...
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Page 14: Adjust 1Pt (1-Point Adjustment Against A Reference Environment)
ADJUST 1PT (1-point adjustment against a reference environment) Definition The Adjust 1PT function permits to do a 1-point adjustment (temperature or humidity) of any ROTRONIC HygroClip digital probe against a known reference environment. This function is limited to a simple offset adjustment that is applied across the entire measuring range. -
Page 15: Adjust Ref (1-Point Adjustment Against A Reference Probe)
Note: this function is not available with the HygroPalm 1 When two ROTRONIC HygroClip digital probes are connected to the HygroPalm, the Adjust REF function permits to do a 1-point adjustment (both humidity and temperature) of the probe connected to input 1, using the probe connected to input 2 as a reference. -
Page 16: Settings
Page 16 of 33 SETTINGS Definition This function is used to do the following: • turn the trend indicators on or off • change the symbol used for relative humidity • turn the battery charge function on or off (do not set to “on” with standard batteries) •... -
Page 17: Errors And Status Messages
Page 17 of 33 Errors and Status Messages The following is a list of coded messages (101, etc.) that the HygroPalm may show on the bottom line of the LC display. Errors: checksum error the checksum test did not pass during RS-communication. bad command an unknown command was received disallowed... -
Page 18: Remote Control Mode
Remote Control Mode Definition The Remote Control Mode of the HygroPalm is used in conjunction with the ROTRONIC M23, M33 and HygroFlex transmitters and is primarily used to display the readings of the transmitter and/or calibrate the HygroClip probe(s) attached to the transmitter. -
Page 19: Display Measurements
HygroPalm Function Menu. Transmitters with second probe option: the probe that was displayed on the HygroPalm prior to entering the function menu will be adjusted. 1) applies only to the ROTRONIC HygroClip digital probes Function ADJUST REF... -
Page 20: Environmental Limits
Page 20 of 33 Press the ENTER key to accept the reference data. The message “sure ?” should appear on the LC display. Press ENTER to do the 1-point adjustment of both humidity and temperature or press MENU to abort and exit this process. When the message “Adjust OK” appears, press ENTER to exit. Notes: Expose both probes to be to the same stable environment. -
Page 21: Specifications
6) Accuracy, repeatability and operating limits are specified separately for each model of probe 7) ROTRONIC analog probes: because the HygroPalm cannot read a negative input voltage, temperature measurement with probes having a standard output is generally limited to values above freezing. Third-party probe (pressure or other): linearized voltage output signal within the range of 0..2.5 VDC, supply voltage 7.6…9... -
Page 22: Appendix 1: Practical Advice For Measuring Humidity
Page 22 of 33 Appendix 1: Practical Advice for Measuring Humidity The most common source of error when measuring relative humidity is a difference between the temperature of the probe and the temperature of the environment. At a humidity condition of 50 %RH, a temperature difference of 1°C (1.8 °F) typically results in an error of 3 %RH on relative humidity. -
Page 23: Appendix 2: Maintenance Of The Rotronic Probes
Cleaning or Replacing the Dust Filter of the Probe Most ROTRONIC probes come with one of the following types of dust filter: (a) protective metal base with a removable filter cartridge or (b) plastic slotted cap with built-in (not removable) filter element. -
Page 24: Appendix 3: Calibration Basics
If you cannot meet the above requirements, you should not attempt to calibrate temperature. Humidity Calibration ROTRONIC provides easy-to-use, certified humidity standards for those customer who do not have access to a humidity generator. To use these standards, you will need a calibration device that is suitable for your probe. - Page 25 Page 25 of 33 Certified Humidity Standards The ROTRONIC certified standards are available in boxes of 5 glass ampoules of the same value, which can be stored indefinitely. Standards in the range of 5 to 95 %RH are non-saturated aqueous salt solutions that are precisely titrated at our factory for the right concentration.
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Page 26: Appendix 4: Humidity Definitions
Page 26 of 33 Appendix 4: Humidity Definitions Relative Humidity and Water Activity Relative humidity is the ratio of two pressures: %RH = 100 x p/ps where p is the actual partial pressure of the water vapor present in the ambient and ps the saturation pressure of water at the temperature of the ambient. - Page 27 Page 27 of 33 Vapor Concentration The vapor concentration (density of water vapor in a mixture) - or absolute humidity - is defined as the ratio of the mass of water vapor M to the volume V occupied by the mixture. / V , expressed in grams/m3 or in grains/cu ft This can be derived as follows from the equation PV = nRT: a) M...
- Page 28 Page 28 of 33 Mixing Ratio by Weight The mixing ratio r of moist air is the ratio of the mass M of water vapor to the mass M of dry air with which the water vapor is associated: r = M = n x m x p V / RT = n x m...
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Page 29: Appendix 5: Dew Point Accuracy
Page 29 of 33 Appendix 5: Dew Point Accuracy The HygroPalm uses the relative humidity and temperature measurements to compute other parameters such as dew point, wet-bulb temperature, mixing ratio, enthalpy, etc. The accuracy of this conversion varies, depending on the humidity and temperature conditions. Typical accuracy for the dew point conversion is provided in the graph below: Dew Point Accuracy ±1 °C... -
Page 30: Appendix 6: Rs232 Communication Protocol
The following describes the RS-232 communication protocol that is used by the instruments from ROTRONIC when connected to the COM port of a PC. This information is provided for users who for any reason do not wish to use the HW3 or HW4 software and for users who plan on using a terminal server (TCP/IP). - Page 31 Page 31 of 33 Data Integrity - 7-bit characters are sent with a parity bit. 8-bit characters are sent without parity bit. - Strings (made of 7-bit characters) can be sent with or without checksum at the end of the string. When the checksum is not known –...
- Page 32 Page 32 of 33 HygroLab 3 {B00RDD}+CR – assuming the address is 0 M33 series {R00RDD}+CR – assuming the address is 0 Reserved {X00RDD}+CR – assuming the address is 0 CR=Chr(13) Special Situations (single instrument – Serial Interface Settings 1) Using address 99 in a data request causes instruments with any address to answer.
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Page 33: Appendix 7: Accessories For The Hygropalm
Page 33 of 33 Appendix 7: Accessories for the HygroPalm Order Code Description HygroData-HP HW3 software (CD ROM) and PC data cable (AC1622) for HygroPalm 2 and 3 HW4-E HW4 software, Standard Edition ( single user) HW4-P HW4 Professional Edition (FDA/GAMP validation functions, multi user) PalmDock Docking station for battery charging and RS232 communication.
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