English Operating manual WBGT index HD32.2 Companies / Brands of GHM www.deltaohm.com Keep for future reference.
TABLE OF CONTENTS 1. GENERAL FEATURES ...................................................................................................................................... 3 2. WORKING PRINCIPLE ..................................................................................................................................... 6 3. USER INTERFACES ........................................................................................................................................... 8 3.1 THE DISPLAY ...
1. GENERAL FEATURES HD32.2 is designed for WBGT (Wet Bulb Globe thermometer temperature) index analysis in presence or absence of solar radiation. The instrument is provided with three inputs for probes with SICRAM module: the probes have an electric circuit that communicates with the instrument; the sensor calibration data are saved in its permanent memory. All the SICRAM probes can be inserted in one of the inputs: they are automatically recognized when you switch the instrument on.
WBGT Wet Bulb Globe Temperature Meter HD32.2 HD32.2 - 4 - V1.
1. Inlets for SICRAM probes. 2. Inlet for power supply. 3. Back - enlightened graphic display. 4. Navigation key ▲: it allows the navigation through the menus. During the normal working it selects the reset of statistic data. 5. ESC key: it allows exiting from the menu or, in case of a submenu, exiting from the current level display. 6. Navigation key ◄: it allows the navigation through the menus. During a normal visualization, it allows to visualize the statistic data: maximum, minimum and medium. 7.
2. WORKING PRINCIPLE Microclimate term means the environmental parameters that influence the thermal exchanges between the being and the environments inside limited places and that determinate the so-called “thermal well-being”. The micro-environmental weather factors together with your own job influence a series of your biologic responses connected to well-being situations (Comfort) or thermal uneasiness (Discomfort).
In the following table are indicated the limit values of the WBGT thermal stress index taken from ISO 7243 regulation: METABOLIC LEVEL, M WBGT LIMIT VALUE W/m TOTAL (FOR A MEDIUM AREA OF 2 1,8 m SKIN SURFACE) W 0 (RESTING) M ≤ 65 M ≤ 117 33 32 1 65 < M ≤ 130 117 < M ≤ 234 30 29 2 130 < M ≤ 200 234 < M ≤ 360 28 26 3 200 < M ≤ 260 360 < M ≤ 468 STAGNANT AIR 25 NO STAGNANT AIR 26 STAGNANT AIR 22 NO STAGNANT AIR 23 4 M > 260 M > 468 23 25 18 20 LEVEL CLASS METABOLIC RELATIVE TO
3. USER INTERFACES The user interface is composed of an LCD graphic back - enlighten display and start and set keys of the instrument. With a battery power supplying without pressing any key, the back- lighting switches off after 1 minute. To activate it again, press one key. With external power supply, the back-lighting is always activated. To switch the instrument on and off, press ON/OFF key.
3.2 THE KEYBOARD The instrument keys have the following functions: ON-OFF / AUTO-OFF key ON-OFF: It allows switching the instrument on and off. When you switch the instrument on, the first screen will be visualized and, after some seconds, the detected measurements will be visualized. AUTO-OFF: The instrument switches off after 8 minutes from the switching on. When you switch the instrument on, the AUTO-OFF function can be disabled pressing together ESC and ON/OFF keys.
▼key It allows the navigation through the menus. During a normal working, it cancels the choice to reset the statistic data. ►/UNIT key ► It allows the navigation through the menus. UNIT: it allows selecting the temperature measurement unit: °C, °F, °K. HD32.2 - 10 - V1.
4. WORKING Before switching the instrument on, connect the SICRAM probes to the inlets: 8 pin male connector DIN 45326 that is on the bottom of the instrument. NOTE: The probes must be connected to the instrument off. If you connect a new probe to the instrument already switched on, it isn't recognized, so it's necessary to switch the instrument off and switch it on again.
4.1.1 The measurement “Unit” Pressing ►/ UNIT key, it’s possible to visualize the temperature in degrees °C (Celsius), °F (Fahrenheit) or °K (Kelvin). 4.1.2 The immediate printing of the data Pressing Enter key, it’s possible to print the immediate data on HD40.1 printer. Example of immediate printing of the data, obtained using HD40.1 printer. NOTES ======================== ISO 7243 WBGT Index ======================== Model HD32.2 WBGT Index Firm.Ver.=01.00 Firm.
4.1.4 Instrument setting To set the instrument up, you enter to the main menu, pressing MENU key. For more details, see the chapter 5. 4.1.5 Start a memorization section (Logging) To start a Logging section, press MEM key: the key starts and stops the memorization (Logging) of a data block that will be kept into the instrument internal memory. The frequency with which the data are memorized is set with "Log interval" menu parameter.
5. THE MAIN MENU To visualize the programming menu, press MENU key: WBGT Index 2008/11/10 08:00:00 MAIN MENU Info Logging Serial Reset Contrast exit/cancel If you don’t press any key for at least 2 minutes, the instrument will be back to the main visualization. To select a heading, use ▲▼ arrow keys and press ENTER. To exit from the selected heading and be back to the previous menu level, press ESC. To exit directly from the main menu, press MENU again. 5.
To modify the ID, press ENTER. Select the heading that you want to change with ◄► arrows and modify it with ▲▼ arrows. Go on with the other headings and, at the end, confirm with ENTER key. Selecting Info Probe you can visualize the information involving the probes connected to the inlets: INFO PROBE Ch.1:Pt100Tg_50 Cal=2008/06/20 SN=08018422 Ch.2:Pt100 Cal=2008/06/21 SN=08018423 Ch.3:Pt100Tw Cal=2008/06/20 SN=08018424 INFO ABOUT PROBE: Description of the probe connected to the inlet 1.
7. press ENTER to confirm and go back to the main menu; 8. or press ESC to go back to the menu, without modifying anything; 9. press MENU to exit directly from the main menu. NOTE: With reference to the time, you can set hour and minuted, the seconds are always set at 00 (set 00 seconds!). 5.2 LOGGING MENU Press MENU key to enter into the main menu; • Select Logging heading using ▲ ▼ keys; • press ENTER: the submenu for the parameters setting involving the Logging section (to aquired) is visualized.
Memorization interval 15 seconds 30 seconds 1 minute 2 minutes 5 minutes Memory capacity About 11 days and 17 hours About 23 days and 11 hours About 46 days and 22 hours About 93 days and 21 hours About 234 days and 17 hours Memorization interval 10 minutes 15 minutes 20 minutes 30 minutes 1 hour Memory capacity About 1 year and 104 days About 1 year and 339 days About 2 years and 208 days About 3 years and 313 days About 7 years and 261 days 5.2.
2. To go back to Logging menu, press ESC. 3. To go back to the main menu, press ESC again. 4. To exit directly from the menu press MENU. 5.2.3 Start/stop time – The automatic start The start and the end of the memorization can be programmed inserting the date and the hour. The function offers, as start hour, the current hour will increase of 5 minutes: to confirm, press , vice versa set the date and the hour using the arrows.
1. using ◄ ► arrow key select the data to modify (year/month/day and hour/minutes/seconds); 2. once selected, the data will start flashing; 3. change the valued with ▼▲ keys; 4. confirm pressing ENTER; 5. to be back to Logging menu without modifying anything, press ESC; 6. to be back to the main menu, press ESC again; 7. to exit directly from the main menu, press MENU. NOTE: in a default mode, the set end acquisition time is more than 10 minutes with reference to the start time of Logging section.. 1.
WBGT Index 2008/11/10 08:00:00 Self-timer abort Start scheduled at 2008/11/28 10:29:00 Stop scheduled at 2008/11/28 10:39:00 Press ARROW to delete schedule 3. pressing ▲ key the following message will be visualized: ”Self timer not active”; WBGT Index 2008/11/10 08:00:00 Self timer not active 4. 5. 6. 7. press ENTER to cancel the auto start; press ESC to exit without cancelling the auto start; press ESC again to go out from the different submenus; or press MENU to exit directly from the main menu.
5.2.5 Log File Manager Through this heading, it’s possible to manage the acquired log sections: the instrument allows printing the acquired data files (Print selected log) and cancelling the whole memory (Erase ALL logs). The instrument can memorize up to 64 sections of LOG numbered progressively from 00 to 63: the list of the sections is placed on 4 lines and 4 columns. If there are more than 16 sections, using MEM key you can visualize the following screen.
The communication between the instrument and the PC or between the instrument and the printer works only if the baud rate of the instrument and the one belonging to the connected device (computer or printer) are the same. Example of printing of a logging section, obtained with HD40.1 printer NOTES Log number: 1 ======================== ISO 7243 WBGT Index ======================== Model HD32.2 WBGT Index Firm.Ver.=01.00 Firm.Date=2008/12/05 SN=12345678 ID=0000000000000000 -----------------------Probe ch.
Print selected log Selecting this heading you can visualize the logging sections that are into the instrument: LOG FILE 0/3 00 – 01 – 02 – 03 04 – 05 – 06 – 07 08 – 09 – 10 – 11 12 – 13 – 14 – 15 Date: 2008/11/28 08:59:40 rec: 000039 to charge Page 1. select the log to print, using ▲▼◄►arrows and MEM key to go to the following page. 2.
2) Log time (Set time for the memorization) It represents the duration of the memorization: after the set time, the memorization stops. The memorization can be finished before the expiration of the set time, pressing MEM key. To disable the function, set the time at 0:00:00. In this case, the memorization stops pressing MEM key or when the memory is full.
5.3.1 Baud Rate Baud Rate represents the speed used for the serial communication with the PC. To set Baud rate, go on as indicated below: 1. select the heading with ▼▲ arrow keys; 2. press ENTER: the following message will be visualized: WBGT Index 2008/11/10 08:00:00 set Baudrate arrows to correct Or now set at: 38.400 3. set the value through ▼▲ arrow keys; 4. press ENTER to confirm and go back to the previous screen or press ESC not to modify the value and exit for the menu heading; 5.
6. press MENU to exit immediately from the main menu. The print interval can be set from 0 seconds to one hour: 0 s - 15 s - 30 s - 1 min. - 2 min. - 5 min. - 10 min. - 15 min. - 20 min. - 30 min. - 1 hour. 5.4 RESET To enter into Reset submenu in order to carry out a complete reset of the instrument, go on as indicated below: 1. press MENU key of the instrument; 2. select Reset heading, using ▼▲ arrow keys; 3.
6. PROBES AND MEASUREMENTS Necessary probes for WBGT measurement: TP3276.2 or TP3275 HP3201.2, HP3201 or TP3204S (*) (**) TP3207.2, TP3207 Temperature probe Sensor type: Accuracy: Measurement range: Connection: Connector: Cable: Dimensions: Response time T95 TP3207.2 or TP3207 Thin film Pt100 Class 1/3 DIN -40 ÷ 100 °C 4 wires plus SICRAM module 8-pole female DIN45326 Only TP3207 (2m) Ø=14 mm L= 150 mm (TP3207.
(*) (**) TP3276.2, TP3275 Globe thermometer probe Ø=50 mm (TP3276.2), Ø=150 mm (TP3275) Sensor type: Pt100 Accuracy: Class 1/3 DIN Measurement range -10 ÷ 100 °C Connection: 4 wires plus SICRAM module Connector: 8-pole female DIN45326 Cable: Only TP3275 (2m) Stem dimension: Ø=8 mm L= 170 mm (TP3276.2), Ø=14 mm L= 110 mm (TP3275) Response time T95 15 minutes (*) The probe is calibrated, the calibration data are kept into the SICRAM module memory.
(*) (**) HP3201.2, HP3201 Wet bulb probe with natural ventilation Sensor type: Pt100 Accuracy: Class A Measurement range: 4 °C ÷ 80 °C Connection: 4 wires plus SICRAM module Connector: 8-pole female DIN45326 Cable: Only HP3201 (2m) Stem dimension: Ø=14 mm L= 170 mm (HP3201.2), L= 110 mm (HP3201) Cotton wick length: about 10 cm Tank capacity: 15 cc Tank autonomy: 96 hours con RH=50%, t = 23°C Response time T95 15 minutes HP3201.
(*) (**) TP3204S Natural ventilation wet bulb probe for long-lasting measurements Sensor type: Pt100 Accuracy: Class A Measurement range: 4 °C ÷ 80 °C Connection: 4 wires plus SICRAM module Connector: 8-pole female DIN45326 Cable: 2m Dimensions: L x W x H=140 x 65 x 178.
Measurement In the place where you want to measure, you must assembly the tripod and the probes necessary for the measurement. You set the instrument up and then you start measuring. If the measurement has to be done in other places, you have to move all the equipment in the new measurement position. At the end of the measurement or after some times, the acquired data are transferred to the PC for the elaboration and to allow writing the measurement report/s. 6.
7. SERIAL AND USB INTERFACES HD32.2 has a RS-232C serial interface, galvanically isolated and it has a USB 2.0 interface. As an optional, we can supply, under request: • RS-232C serial connection cable (code HD2110/RS) with M12 connector from instrument side and 9-pole female connector sub D from the PC side. • USB 2.0 connection cable (code HD2110/USB) with M12 connector from instrument side and USB 2.0 connector from the PC side.
Command C3 GC GB H0 H1 H2 H7 H8 LN LFn LDn LE K1 K0 K4 K5 KP KQ WC0 WC1 RA RL WA# WL# HD32.2 Response Description Probe 3 type, serial number, calibration date Print instrument's heading ID=0000000000000000 User code (set with T2xxxxxxxxxxxxxxxx) Tw= 19.5 øC Print wet bulb temperature Tg= 22.0 øC Print globe thermometer temperature Ta= 21.6 øC Print air temperature (dry bulb); WBGT(i)= 23.0 øC Print indoor WGBT (without solar radiation) WBGT(o)= 24.
7.1 THE DATA MEMORIZATION AND THE DATA TRANSFER TO A PC HD32.2 can be connected to RS232C serial port or USB port of a PC and can exchange data and information through DeltaLog10 software that works with Windows. The values measured can be printed (ENTER key) or stored in the memory of the instrument by using the Logging function (MEM key). The memorized data can be transferred to the PC in a second time. 7.1.
9. INSTRUMENT SIGNALS AND FAULTS The following table lists all error indications and information displayed by the instrument and supplied to the user in different operating situations: Display indication Explanation ---.-- This appears if the sensor relevant to the indicated physical quantity is not present or is faulty OVFL Overflow appears when the probe detects a value that exceeds the expected measurement range.
10. BATTERY SYMBOL AND BATTERY REPLACEMENT – MAIN POWER SUPPLY The battery symbol on the display constantly shows the battery charge status. To the extent that batteries have discharged, the symbol "empties". When the charge decreases still further it starts blinking. In this case, batteries should be replaced as soon as possible. If you continue to use it, the instrument can no longer ensure correct measurement and turns off. Data stored on memory will remain.
11. INSTRUMENT STORAGE Instrument storage conditions: • Temperature: -25…+65°C. • Humidity: less than 90% RH without condensation. • During storage avoid locations 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; • the instrument may be exposed to steam, salt or any corrosive gas.
12. PRINTING OF THE MEASUREMENT REPORT Norm ISO 7243 Norm ISO 7243 HD32.2 - 38 - V1.
Warm Environments Norm ISO 7243 HD32.2 - 39 - V1.
Warm Environments Norm ISO 7243 HD32.2 - 40 - V1.
Warm Environments Norm ISO 7243 HD32.2 - 41 - V1.
Warm Environments Norm ISO 7243 HD32.2 - 42 - V1.
Warm Environments Norm ISO 7243 HD32.2 - 43 - V1.
13. NOTES ON WORKING AND OPERATING SAFETY Authorized use Comply with the technical specifications outlined in the chapter “TECHNICAL CHARACTERISTICS”. Its use is authorized only in conformity with the instructions written in this manual. Any different use is considered improper.
14. TECHNICAL CHARACTERISTICS Instrument Dimensions (Length x Width x Height) Weight Materials Display 185x90x40 mm 470 g (complete of batteries) ABS, rubber Dot matrix with backlight 160x160 points, visible area 52x42mm Working conditions Operative temperature Storage temperature Humidity relative to work Protection degree Instrument uncertainty Power supply Net power supply (code SWD10) Batteries Autonomy Absorbed current with switched instrument off Safety of the memorized data TP3207.
HP3201.
Memorization interval HD32.2 selectable between: 15, 30 seconds, 1, 2, 5, 10, 15, 20, 30 minutes and 1 hour - 47 - V1.
15. ORDERING CODES HD32.2 Kit consists of: • • HD32.2 WBGT Index instrument, 4 alkaline batteries 1.5V AA type, instruction manual, case. The probes and the cables are not included. DeltaLog10 Software for warm environments: WBGT analysis. The DeltaLog10 software is downloadable from Delta OHM website. Necessary probes for WBGT measurement: • • • TP3207.2 Dry bulb temperature probe. TP3276.2 Globe thermometer probe. HP3201.2 Wet bulb temperature probe with natural ventilation.
9-pole SubD female connector for RS232C on PC side. HD2110/USB Connection cable with M12 connector on the instrument, USB 2.0 connector on PC side. SWD10 Stabilized power supply with 100-240Vac/12Vdc-1A main tension AQC 200cc of distilled water HD40.1 Printer (it uses HD2110/RS cable) DELTA OHM metrology laboratories LAT N° 124 are ISO/IEC 17025 accredited by ACCREDIA for Temperature, Humidity, Pressure, Photometry / Radiometry, Acoustics and Air Velocity.
NOTES HD32.2 - 50 - V1.
GU AR AN T E E TERMS OF GUARANTEE All DELTA OHM instruments are subject to accurate testing, and are guaranteed for 24 months from the date of purchase. DELTA OHM will repair or replace free of charge the parts that, within the warranty period, shall be deemed non efficient according to its own judgement. Complete replacement is excluded and no damage claims are accepted. The DELTA OHM guarantee only covers instrument repair.
GHM GROUP – Delta OHM | Delta Ohm S.r.l. a socio unico Via Marconi 5 | 35030 Caselle di Selvazzano | Padova | ITALY Phone +39 049 8977150 | Fax +39 049 635596 www.deltaohm.com | info@deltaohm.com The quality level of our instruments is the result of the constant development of the product. This may produce some differences between the information written in this manual and the instrument you have purchased. We cannot completely exclude the possibility of errors in the manual, for which we apologize.
GHM GROUP – Delta OHM | Delta Ohm S.r.l. a socio unico Via Marconi 5 | 35030 Caselle di Selvazzano | Padova | ITALY Phone +39 049 8977150 | Fax +39 049 635596 www.deltaohm.com | info@deltaohm.com V1.
