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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  |  [email protected] 

 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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. 
The data, images and descriptions included in this manual cannot be legally asserted. We reserve the 

right to make changes and corrections with no prior notice. 

Summary of Contents for HD40.2

Page 1: ...Operating manual Pressure ON OFF relay switches HD402TR L series www deltaohm com English Keep for future reference Companies Brands of GHM...

Page 2: ...OF CONTENTS 1 INTRODUCTION 3 2 TECHNICAL CHARACTERISTICS 4 3 INSTALLATION 6 3 1 ELECTRICAL CONNECTIONS 7 3 2 CONFIGURATION 7 4 ALARM OPERATING MODES 11 5 INSTRUMENT STORAGE 13 6 SAFETY INSTRUCTIONS 13...

Page 3: ...uto zeroing feature in the low range model HD402TR1L allows stable mea surements over the time without the need to recalibrate The instruments are equipped with a 4 digit LCD display and different uni...

Page 4: ...by using the optional CP27 adapter Configuration Settable unit of measurement thresholds hysteresis delay and alarm operation mode Auto zero Automatic for HD402TR1L manual for the other models Respons...

Page 5: ...1L 0 1 0 001 0 01 0 001 HD402TR2L 1 0 01 0 1 0 01 HD402TR3L 0 01 0 1 0 01 0 001 HD402TR4L 0 1 1 0 1 0 01 HD402TR5L 0 1 1 1 0 01 DIMENSIONS INTERNAL VIEW Power LED Alarm LED Terminal header Buttons for...

Page 6: ...the deviation of the zero can be manually corrected as follows Disconnect both the tubes from the pressure and inputs Press B1 and B2 buttons at the same time until the ALARM red LED lights up if it...

Page 7: ...on set via serial port is used A dip switch is OFF when placed down towards the serial connector Instead it is ON if placed up towards the DIP SW sign The following tables report the unit of measureme...

Page 8: ...ts the unit of measurement HD402TR1 and HD402TR2 n 0 Pa n 1 mmH2O n 2 inchH2O n 4 mbar HD402TR3 HD402TR4 and HD402TR5 n 0 kPa n 1 mmHg n 2 PSI n 4 mbar Default Pa HD402TR1 HD402TR2 kPa HD402TR3 HD402T...

Page 9: ...cally exits the configuration mode after 5 minutes from the last command sent CONFIGURATION VIA THE INTERNAL BUTTONS The configuration set with the internal buttons is used by the instrument only if t...

Page 10: ...larm The alarm is generated only if the measurement exceeds the thre shold for more than the set time Alarm deactivation delay T2 Value in seconds of the time delay for deactivat ing the alarm The ala...

Page 11: ...than threshold 1 for more than T1 seconds The alarm is turned off when the measurement becomes greater then threshold 1 plus the hysteresis for more than T2 seconds The down arrow on the left of the...

Page 12: ...ights up the buzzer is on if enabled and the relay is switched depending on the chosen relay operating mode While in alarm the buzzer can be stopped only for the current event by short press ing the b...

Page 13: ...ry use and has left the factory in perfect safety tech nical conditions The instrument proper operation and operating safety can be ensured only if all stan dard safety measures as well as the specifi...

Page 14: ...uct RS27 RS232 null modem serial connection cable with SubD 9 pin connector on the PC side and 3 pole connector on the instrument side CP27 Connection cable with built in USB RS232 converter USB conne...

Page 15: ......

Page 16: ...ed 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...

Page 17: ...e 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...

Page 18: ...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 0 05 06 2019...

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