Delta OHM HD45 17A Operating Manual Download | Manualshive

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HD45 / HD46

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V2.4

Dimensions

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HD45… series

HD46… series

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Summary of Contents for HD45 17A

Page 1: ...Operating manual Transmitters regulators HD45 HD46 www deltaohm com Companies Brands of GHM English Keep for future reference ...

Page 2: ...on Dispersive Infrared Technology that ensures long lasting accurate and stable measures thanks to the use of a double filter and a special measurement technique The presence of a protection membrane through which sampled air flows protects the sensor from dust and atmospheric agents The instruments are factory calibrated and require no further adjustment by the installer The instrument is wall mo...

Page 3: ...oard have a display with backlight that can be enabled by a simple key pressure Models of the series HD45 provided with relay have a hardware switch that allows quick selection of the threshold between a set of preset values All models perform continuous measure storing and data can be downloaded on a PC Instruments are powered with 24Vac or 15 35Vdc supply ...

Page 4: ...7DVR 2 1 Power HD45 17DAR 2 1 Power HD45 7BV 2 Power HD45 7BA 2 Power HD45 7BS Power HD45 7BR 1 Power HD45 7BSR 1 Power HD45 7BVR 2 1 Power HD45 7BAR 2 1 Power HD45 7BDV 2 Power HD45 7BDA 2 Power HD45 7BDS Power HD45 7BDR 1 Power HD45 7BDSR 1 Power HD45 7BDVR 2 1 Power HD45 7BDAR 2 1 Power HD45 BV 1 Power HD45 BA 1 Power HD45 BS Power HD45 BR 1 Power HD45 BSR 1 Power HD45 BVR 1 1 4 LED CO2 level H...

Page 5: ...HD46 17DA 2 Power HD46 17DS Power HD46 17DTR 2 Power RH T HD46 17DTSR 2 Power RH T HD46 17BV 3 Power HD46 17BA 3 Power HD46 17BS Power HD46 17BR 3 Power RH T CO2 HD46 17BSR 3 Power RH T CO2 HD46 17BDV 3 Power HD46 17BDA 3 Power HD46 17BDS Power HD46 17BDTR 3 Power RH T CO2 HD46 17BDTSR 3 Power RH T CO2 In the Analog output and Relay output columns the number of the available outputs is indicated i...

Page 6: ...BAR HD46 POWER LED LCD Serial output with mini USB connector Air Quality LED indicators Serial output with mini USB connector HD45 D only POWER LED Humidity LED Temperature LED CO2 LED LCD Keyboard Serial output with mini USB connector HD46 D only HD46 DT only HD46 17B R only HD46 R only HD46 R only ...

Page 7: ...n the CO2 measurement Keyboard It allows setting of instrument setup parameters and display backlight activation MENU key Accesses setup menu Confirms set value ESC key Exits parameter setting mode Deletes not confirmed changes ARROW UP key Scrolls through parameter list Increments selected parameter value ARROW DOWN key Scrolls through parameter list Decrements selected parameter value Serial out...

Page 8: ...nstall the transmitter next to windows outside doors direct heat air conditioning or within occupants breathing zone In all models sensors and electronics are housed inside a robust plastic case The grids at the bottom and top of the housing allow ambient air to reach the internal sensitive elements To install the instrument open the housing by pushing down the upper and lower tabs then pull to re...

Page 9: ...tion diagrams below In order to make connection procedures easier the connection diagram of each model is impressed also at the interior of the base Once the connection procedure is completed put the front panel in place again making sure that the upper and lower tabs are correctly inserted in their slots Fig 3 C Fig 3 C Closing the instrument ...

Page 10: ...HD45 HD46 10 V2 4 3 1 HD45 connection diagrams ...

Page 11: ...HD45 HD46 11 V2 4 3 2 HD46 connection diagrams ...

Page 12: ...rature in C and relative humidity in You can setup instruments to display temperature in F and humidity as dewpoint Td Dewpoint T T ambient Td Fig 4 B Viewing humidity as dewpoint The instrument requires about 15 minutes to ensure stable measures and indicated accuracy In models provided with a keyboard you can turn on the display backlight by pressing any key Backlight turns off after 30 minutes ...

Page 13: ... the technical data 4 2 Relay outputs HD45 R models have only one relay output that can be associated to one of the quantities measured by the instrument The potential free contact output is preset to close when the measure exceeds the threshold limit In HD46 R models each quantity measured by the instrument is associated to a relay output Relay activation is indicated by the turning on of the cor...

Page 14: ...mode and the instrument operates with thresholds and hysteresis set via software see Tab 4 B for factory settings Tab 4 B Relay output default settings in HD45 models Temperature HD45 17 R and HD45 7B R CO2 HD45 B R Threshold 100 0 C Threshold 1000 ppm Hysteresis 5 0 C Hysteresis 100 ppm If the selector is in a position other than zero we are in simplified mode the relay activates only on the thre...

Page 15: ... in HD46 R models In HD46 R models as well the relay can be used in two modes Simplified mode relays operate with a single freely settable threshold if the instrument is supplied with a keyboard it has a threshold quick setting mode Complete mode relays can operate with one or two thresholds the quick setting mode is disabled The instrument is preset in complete mode with the following thresholds ...

Page 16: ...re shown on the display The S symbol on top left of the display indicates that you are in the threshold values screen A full flashing cursor appears next to one of the available thresholds Thresholds can be changed as follows 1 If necessary move the cursor on the desired threshold with and keys 2 Press MENU the cursor passes in underlined mode 3 Change the value with and keys 4 Confirm by pressing...

Page 17: ...is pressed the threshold screen is not displayed but you access the complete configuration mode see section Configuration by means of a keyboard Relay operation in Complete mode When the instrument is set in complete relay operation mode each relay is associated with two configurable thresholds named A and B You can select either to make relays operate with both thresholds or with one of the two T...

Page 18: ...values If threshold A value is lower than threshold B value the contact is open if the measuring value rises above threshold B value or falls below threshold A value The contact is closed if the measuring value is within the two threshold values 6 Relay activates below threshold B with hysteresis The contact closes if the measured value falls below threshold B Contact opens if the measured value r...

Page 19: ...hold A and below threshold B with hysteresis Relay action is different depending if threshold A value is greater or lower than threshold B value If threshold A value is greater than threshold B value the contact is closed if the measuring value rises above threshold A value or falls below threshold B value The contact is open if the measuring value is within the interval ranging between threshold ...

Page 20: ...eshold A with hysteresis for CO2 and humidity and Relay active below threshold B with hysteresis for temperature Further to the above mentioned modes the relay contact can also be made to close when an error occurs relating to the measured quantity for example in case of sensor fault or of a value measured over the set range Thus the relay can be used only to check the measured quantity only to si...

Page 21: ...o 20 ppm Threshold values and hysteresis can be configured For the setting procedure see section CONFIGURATION LED indicators operate independently from relay operation Indicator thresholds and hysteresis are different parameters than relay thresholds and hysteresis So relay can be activated at different values than LED thresholds 4 4 Logging Instruments are in continuous logging mode from the mom...

Page 22: ...dity module calibration data 3 Humidity module calibration data not present 4 Error in configuration and or calibration data 5 Program memory altered 6 Error in temperature calibration 7 Temperature measure out of range 8 Humidity measure out of range 9 CO2 measure out of range In models without display when an error occurs the POWER LED flashes a number of times equal to the error number spaced b...

Page 23: ...f the instrument has been already installed and power supplied the instrument is designed to avoid interferences between the two power supplies With the RS45I cable the instrument is not powered by the PC USB port Fig 5 A Serial connection mini USB connector The instrument parameters setup can be easily performed by means of the application program for PC DeltaLog14 In such case please refer to th...

Page 24: ...d make sure to keep the new code in a safe place There are no commands for the reset of the access code The loss of the code precludes the possibility to change the configuration parameters set to authorisation level 1 In case of loss of the access code the user shall address the technical service giving them a number supplied by the instrument through which it will be possible to trace the code i...

Page 25: ...MENU when the message Press MENU to edit parameters appears but press or to set the first digit of the code Confirm the entered digit by pressing MENU the cursor will move on the second digit Enter the other 5 code digits in the same way Note the entered digit remains in evidence for one second then it is replaced by an asterisk even if it hasn t yet been confirmed Even if it is no more visible th...

Page 26: ...preceded by the indication d if expressed in decimals or by h if expressed in hexadecimals Press the MENU key to access Edit mode a full flashing cursor will appear in correspondence with the parameter value At this point you can select if to edit the parameter value or the authorization level Changing the parameter value When the full cursor flashes on the parameter value press again the MENU key...

Page 27: ...r disappears At this point you can scroll again through the parameter list with the arrow keys Changing the protection level When the full cursor flashes on the parameter value press again the or keys to move the full flashing cursor on the level value Press the MENU key the cursor will move to the underlined mode ...

Page 28: ...tion mode To exit configuration mode press the ESC key at any time If the cursor is not on the display by pressing ESC the instrument returns directly to the measuring mode If on the contrary the cursor is displayed the instrument exits edit mode the cursor disappears but remains in configuration mode press again ESC to exit Any changes which have not been confirmed will be deleted The instrument ...

Page 29: ...er code Alphanumeric code Max 34 digits 1 001 User calibration date 2 002 Number of samples to be averaged for measure printing on serial port MIN 1 MAX 20 1 003 CO2 calibration point ppm MIN 200 MAX 600 400 004 Atmospheric pressure hPa MIN 0 MAX 3000 1013 005 Logging interval 0 30 seconds 1 1 minute 2 5 minutes 2 006 Temperature measuring unit 0 C 1 F 0 007 Humidity measuring type 0 RH 1 Dewpoint...

Page 30: ... scale analog output x10 MIN P 016 MAX P 018 P 020 40 3 018 F temperature at 10V or 20mA analog output x10 MIN P 017 P 020 MAX P 019 1760 3 019 Maximum F temperature that can be associated to 10V or 20mA analog output x10 MIN P 018 MAX 1850 185 0 F 1850 3 020 Minimum C temperature range for analog output x10 MIN 180 18 0 F 360 3 3 The displayed value is the quantity value multiplied by 10 decimal ...

Page 31: ...o minimum scale analog output x10 MIN 0 MAX P 032 0 3 032 C Ta Td at minimum scale analog output x10 MIN P 031 MAX P 033 P 035 0 3 033 C Ta Td at 10V or 20mA analog output x10 MIN P 032 P 035 MAX P 034 400 3 034 Maximum C Ta Td that can be associated to 10V or 20mA analog output x10 MIN P 033 MAX 450 45 0 C 450 3 035 Minimum C Ta Td range for analog output x10 MIN 50 5 0 C 100 3 3 The displayed va...

Page 32: ... A and below threshold B with hyster and in error FF always enabled 06 6 042 Temperature relay operating mode in HD46 models with simplified mode disabled As P 041 05 043 Humidity relay operating mode in HD46 models with simplified mode disabled As P 041 06 044 Threshold B relay in HD45 and CO2 relay in HD46 relay activated below threshold Thres is in ppm if associated with CO2 Threshold is x10 if...

Page 33: ...pm for LED indicators in HD45 BVR and HD45 BAR model MIN 0 MAX 100 20 5 062 Relay operating mode in HD45 models when rotary selector is in position other than 0 0 Active below threshold 1 Active over threshold 1 5 063 Relay simplified mode activation in HD46 models 0 Disable simplified mode 1 Enable simplified mode 0 064 CO2 relay operating mode in HD46 with simplified mode enabled 0 Active below ...

Page 34: ...50 3 4 093 Maximum possible threshold x10 for humidity relay in HD46 models with simplified mode enabled Over the whole range 700 3 4 3 The displayed value for temperature and humidity is the quantity value multiplied by 10 decimal point not displayed 4 The parameter measuring unit is the same as the respective measured quantity set with P 006 and P 007 parameters 5 This parameter is for HD45 mode...

Page 35: ... with the following values Humidity relay operative mode P 043 07 Threshold B for humidity relay P 046 350 the decimal point is not displayed Threshold A for humidity relay P 049 600 the decimal point is not displayed Hysteresis for humidity relay P 052 30 the decimal point is not displayed Simplified mode activation P 063 0 default setting The complete procedure is as follows 1 Press MENU to acce...

Page 36: ...ccess Edit mode 10 Change P 049 value to 600 with the and keys then press MENU to confirm 11 Select P 052 parameter with the key then press MENU twice to access Edit mode 12 Change P 052 value to 30 with the and keys then press MENU to confirm 13 Press ESC to exit Configuration mode ...

Page 37: ...replace the relative humidity and temperature module open the housing by pressing down the upper and lower tabs then pull to remove the front panel see Fig 3 A in section INSTALLATION AND CONNECTION Ensure power supply is not connected PC not connected to mini USB serial connector The module is located next to the terminal block under the mini USB serial connector Fig 6 A To remove it gently pull ...

Page 38: ... to perform new calibrations only if in possession of adequate technical knowledge CO2 sensor can be calibrated in clean air Each new calibration deletes the previous one To calibrate the sensor proceed as follows 1 Ensure the instrument is actually in clean air 2 Power up the instrument by connecting the serial output to your PC USB port by means of the special RS45 connection cable 3 Wait for at...

Page 39: ...ests that can be sent through a PC with the instrument connected via mini USB output Tab 7 A Communication protocol Command Response Description Cu0 Set the operating mode for circulating air Cu1 Set the operating mode for still air G0 HD Transmitter model G1 Vnn nn aaaa mm gg Firmware version and date G2 aaaa mm gg hh mm ss Calibration date and time G3 nnnnnnnn Instrument serial number G4 nnnnnnn...

Page 40: ...n the instrument internal terminal block see section CONNECTION AND INSTALLATION and is suitable for fixed installations Thanks to RS485 output several instruments can be connected to form a network consisting of a minimum of 1 instrument to a maximum of 247 connected in a sequence through a shielded cable with twisted pair for signals and a third wire for the common Fig 8 A Connection to RS485 ne...

Page 41: ...llows Baud rate 19200 Parity Even Start bit 1 Data bits 8 Stop bit 1 Transmitter address baud rate parity type and stop bits number are configurable parameters See section CONFIGURATION for setup modes Note communication via RS485 port is disabled if the instrument is connected to the PC through the mini USB output The DeltaLog14 software package includes utility files to make RS485 communication ...

Page 42: ... followed by two stop bits Fig 8 D Byte format without parity bit in MODBUS RTU protocol The byte is transmitted starting from the least significant bit LSB All bytes in a command are transmitted in a series with no interruptions starting from the address byte The last byte to be transmitted is the most significant byte in the control code CRC If two consecutive bytes are separated by a pause grea...

Page 43: ...vent transmission conflicts between instruments the PC shall also have to wait for response from the questioned instrument before sending a new command If the instrument doesn t receive a correct command time intervals between characters or control codes not respected it will not reply to the PC If the PC doesn t receive any response within a specified time interval time out it will consider the c...

Page 44: ...f command and response will have the following format Command Value Length Description Function 01h 1 byte Relay state reading command Data 0000h to FFFFh 2 bytes First relay address 0001h to 007Dh 2 bytes Number of relays to be read N Response Value Length Description Function 01h 1 byte Relay state reading command Data 01h 1 byte Number of bytes with relay state 1 byte Relay state The following ...

Page 45: ... least significant bit corresponds to the C02 relay state 0 disabled the second bit corresponds to the temperature relay 1 enabled the third bit corresponds to the humidity relay 0 disabled Configuration parameters reading function 03h Function code 03h allows to read a specified number of consecutive instrument parameters The configuration register address containing the first parameter to be rea...

Page 46: ...SB 1 00 1 2 0016 P 000 User code character 16 ASCII 8 bits LSB 1 00 1 2 0017 P 000 User code character 17 ASCII 8 bits LSB 1 00 1 2 0018 P 000 User code character 18 ASCII 8 bits LSB 1 00 1 2 0019 P 000 User code character 19 ASCII 8 bits LSB 1 00 1 2 0020 P 000 User code character 20 ASCII 8 bits LSB 1 00 1 2 0021 P 000 User code character 21 ASCII 8 bits LSB 1 00 1 2 0022 P 000 User code charact...

Page 47: ...P 018 Temperature in F at 10V or 20mA x10 Int 16 bits 1 00 0058 P 019 Max temperature in F at 10V or 20mA x10 Int 16 bits 1 00 0059 P 020 Minimum temperature range in F for the analog output x10 Int 16 bits 1 00 0060 P 021 Min RH at analog output minimum scale x10 Int 16 bits 1 00 0061 P 022 RH at analog output minimum scale x10 Int 16 bits 1 00 0062 P 023 RH at 10V or 20mA x10 Int 16 bits 1 00 00...

Page 48: ...idity relay hysteresis in HD46 Int 16 bits 1 00 0092 P 053 Relay assignment for HD45 R models 8 bits LSB 1 03 2 0093 P 054 Lower threshold ppm for HD45 BVR and HD45 BAR LED indicators Int 16 bits 1 03 0094 P 055 Medium threshold ppm for HD45 BVR and HD45 BAR LED indicators Int 16 bits 1 03 0095 P 056 Upper threshold ppm for HD45 BVR and HD45 BAR LED indicators Int 16 bits 1 03 0096 P 057 Threshold...

Page 49: ...0 2 3 10002 Access code character 2 ASCII 8 bits LSB 1 00 2 3 10003 Access code character 3 ASCII 8 bits LSB 1 00 2 3 10004 Access code character 4 ASCII 8 bits LSB 1 00 2 3 10005 Access code character 5 ASCII 8 bits LSB 1 00 2 3 10006 Access code character 6 ASCII 8 bits LSB 1 00 2 3 1 Read only 2 8 bits LSB indicates register least significant byte 3 The reading of an access code register doesn ...

Page 50: ... read 2 0002h Consequently the command assumes the following format Command Value Length Description Function 03h 1 byte Parameters reading command Data 00h First parameter address MSB 3Ch 2 bytes First parameter address LSB 00h Number of parameters to be read MSB 02h 2 bytes Number of parameters to be read LSB The instrument answers with the two parameter values 20 0 x 10 200 00C8h 80 0 x 10 800 ...

Page 51: ... Number of quantities to be read N Response Value Length Description Function 04h 1 byte Measurements reading command Data 2 x N 1 byte Number of bytes for the values 2 x N bytes Measurements values A measurement value is stored in a 16 bit register and consequently always requires a 2 byte length The most significant byte precedes the least significant one The following table lists the available ...

Page 52: ...to be read 1 0001h Consequently the command assumes the following format Command Value Length Description Function 04h 1 byte Measurements reading command Data 00h First quantity address MSB 02h 2 bytes First quantity address LSB 00h Number of quantities to be read MSB 01h 2 bytes Number of quantities to be read LSB The instrument will answer with the measured value 65 8 x 10 658 0292h Response Va...

Page 53: ...on 05h 1 byte Commands execution Data 0002h 2 bytes Command address number 1 FF00h 2 bytes Fixed value Response Value Length Description Function 05h 1 byte Commands execution Data 0002h 2 bytes Command address number 1 FF00h 2 bytes Fixed value Only parameters changed within command transmission are permanently stored any changes made afterwards require a new transmission of the command in order ...

Page 54: ...5 After changing the parameters modify the content of the above mentioned registers to disable the code If the request involves writing a parameter not included in Table 8 C the instrument replies with the following error message Response Value Length Description Function 86h 1 byte Error in parameter writing Data 02h 1 byte Operation involved a non existent parameter Tab 8 F page 59 Changing seve...

Page 55: ...e of power supply failure in the instrument To make any parameter changes permanent Parameter permanent storage command shall follow the parameter change function 05h To change parameters protected by an access code you must first write the code in the configuration registers from number 10000 to 10005 After changing the parameters modify the content of the above mentioned registers to disable the...

Page 56: ...character value LSB The instrument replies by Response Value Length Description Function 10h 1 byte Parameters write command Data 27h Address of the 1st code char MSB 10h 2 bytes Address of the 1st code char LSB 00h 6 parameters written MSB 06h 2 bytes 6 parameters written LSB The instrument compares the written access code with the one stored in the internal memory if they are equal it allows par...

Page 57: ...For permanent storage of changes transmit the command below Command Value Length Description Function 05h 1 byte Commands execution Data 0002h 2 bytes Permanent storage command address FF00h 2 bytes Fixed value At the end parameters can be protected again from undesired alterations by sending a different access code than the one stored in the internal memory Instrument error conditions function 07...

Page 58: ...cluding Manufacturer Instrument model Firmware version The command format will be as follows Command Value Length Description Function 2Bh 1 byte Information reading command Data 0Eh 1 byte Fixed value MEI type Modbus Encapsulated Interface 01h 1 byte Fixed value Identification type basic 00h 1 byte Fixed value First information field The instrument will answer as follows Response Value Length Des...

Page 59: ... the instrument is not able to complete for any reason the requested action a response is generated containing an error code The value entered in the Function field corresponds to the received Function code with the most significant bit MSB set to 1 in order to inform the Master unit about either the error condition and the function that generated the error Response Value Length Description Functi...

Page 60: ...imatic room the operating mode of the instruments must be changed see the commands on pag 39 Temperature T for HD45 17 HD45 7B HD46 17 and HD46 17B models Sensor type NTC 10KΩ Measuring range 30 85 C 22 185 F Accuracy except models with current output 0 2 C 0 15 of reading within 0 70 C 0 3 C 0 15 of reading within 30 0 C 70 85 C Accuracy for models with current output 0 5 C 0 15 of reading within...

Page 61: ...ng interval Serial outputs mini USB mini USB USB cable RS45 or RS45I cod RS485 MODBUS RTU HD45 S and HD46 S only Stored data security Unlimited Analog outputs 0 10Vdc RL 10kΩ HD45 V and HD46 V only 11Vdc out of range 4 20mA RL MAX 400Ω HD45 A and HD46 A only 22mA outside the measuring range Active sourcing current output Relay outputs Bistable relay HD45 R and HD46 R only Contact max 1A 30Vdc resi...

Page 62: ...HD45 HD46 62 V2 4 Dimensions in mm HD45 series HD46 series ...

Page 63: ...HD45 HD46 63 V2 4 Fixing holes ...

Page 64: ...t the factory in perfect safety technical conditions The instrument proper operation and operating safety can be ensured only if all standard safety measures as well as the specific measures described in this manual are followed The instrument proper operation and operating safety can be ensured only in the climatic conditions specified in this manual Do not use the instrument in places where ther...

Page 65: ... CO2 B CO2 HD46 V 0 10Vdc analog outputs A 4 20mA analog outputs S RS485 MODBUS RTU output R Relay outputs SR RS485 MODBUS RTU output and relay outputs If there is the analog output there cannot be the RS485 output and vice versa With V or A option there is an analog output for each measured quantity With R and SR options there is a relay output for each measured quantity D With display DT With di...

Page 66: ...ut keyboard with three 0 10V analog outputs without relay and without RS485 output HD46 17BDTSR Transmitter indicator and regulator for temperature humidity and CO2 With display and keyboard with three relay outputs with RS485 output HD46 17S Temperature and humidity transmitter Without display and keyboard no relays with RS485 output Accessories DeltaLog14 Software for connection to a PC through ...

Page 67: ...arity The instrument allows to edit or disable the parity check by means of the configuration parameter P 060 CRC code CRC code is a 16 bit binary value computed in function of all the message bytes and is attached at the end of the message to be transmitted The code computing procedure is as follows 1 The 16 bits of the CRC register are all initialized to 1 2 The exclusive OR XOR is performed bet...

Page 68: ...ight shift step 3 0010 0100 1111 1111 1 Fixed value step 4 shifted out bit is 1 1010 0000 0000 0001 XOR Computation 1000 0100 1111 1110 7th right shift step 3 0100 0010 0111 1111 0 8th right shift step 3 0010 0001 0011 1111 1 Fixed value step 4 shifted out bit is 1 1010 0000 0000 0001 XOR Computation 1000 0001 0011 1110 Second information byte 0000 0111 XOR Computation step 2 1000 0001 0011 1001 1...

Page 69: ...t shift step 3 0010 0100 1000 0100 0 8th right shift step 3 0001 0010 0100 0001 0 The final check code is CRC 0001 0010 0100 0001 1241h The least significant byte is 0100 0001 41h and is the first to be transmitted The most significant byte is 0001 0010 12h and is the last byte of the frame to be transmitted ...

Page 70: ...D indicators in HD45 BVR and HD45 BAR MODEL 21 4 4 Logging 21 4 5 Indicating a fault 22 5 CONFIGURATION 23 5 1 Authorization levels 24 5 2 Configuration through keyboard HD46 DT only 25 6 CALIBRATION 37 6 1 Replacement of R H and temperature module HD46 only 37 6 2 CO2 sensor calibration 38 7 COMMUNICATION PROTOCOL mini USB output 39 8 RS485 COMMUNICATION 40 8 1 MODBUS RTU protocol 41 9 TECHNICAL ...

Page 71: ......

Page 72: ...zed third parties is excluded from the guarantee The instrument shall be returned FREE OF SHIPMENT CHARGES to your dealer The jurisdiction of Padua applies in any dispute The electrical and electronic equipment marked with this symbol cannot be disposed of in public landfills According to the Directive 2011 65 EU the european users of electrical and electronic equipment can return it to the dealer...

Page 73: ...he 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 The data images and descriptions included in this manual cannot be legally asserted We reserve the right to make changes and corrections...

Page 74: ...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 V2 4 22 01 2018 ...

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