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85198A_Manual of Electrical Installation for Pressure Probes KH-SIL2-Mobyle-series_07-2019_ENG

5. Safety (content according to IEC/EN 62061 paragraph 7)

Restrictions on use

The device in order to remain compliant with the designated category should be used only as indicated in these instruc-

tions and as required in the operating manual concerning  mechanical installation, electrical connection, environmental 

conditions and usage limits.

The sensors must be powered with non-distributed networks and always at lengths of less than 30 mt.

Maintenance and periodic inspections

Periodic maintenance to carry-out in order to guarantee the justified exclusion of failures are:

- Visual inspection of the status of the electrical and mechanical connections.

  The maintenance is designed to evaluate possible problems due to situations of incorrect mounting endured over time 

  or particular aggressiveness of the material processed.

Frequency: every two years

Check obstruction of the channel under pressure
- The maintenance has the purpose to verify that there are no occlusion of the pressure channel, which would lead to  

   malfunctioning. 

  The inspection is visual, after removing the probe from the process seat.

Frequency: every year. 

Testing the sensor calibration
- The test is intended to check the correctness of the transduction curve  of the sensor. It’s done by applying known 

   pressure points to the transducer and checking the output values of the probe.

Frequency: every four years.

Indication of response time

The response time to the pressure transduction  is equal to 1 ms

Indications and alarms

The KH Series pressure sensors in the case of some specific anomalies provide output saturation (positive HIGH or 

negative LOW).

The table 1 indicates the detected failures, their effect on the electrical output,  and the recovery mode of the device.

Table 1: failures, effects on the outputs

Failure

Current

output

Voltage

output

Ratiometric

FS<= 6V

FS > 6V

Power supply 5V

Power supply cable broken

LOW < 3.8mA

LOW < 0.05 V

LOW < 0.25 V

Sensor not connected

LOW < 3.8mA

LOW < 0.05 V

LOW < 0.25 V

Power supply broken

LOW < 3.8mA

LOW < 0.05 V

LOW < 0.25 V

Broken bridge

*LOW < 3.8mA

*LOW < 0.05 V

*LOW < 0.25 V

*HIGH > 22mA

*HIGH > 7 V

*HIGH > 11.5 V

*HIGH > 4.75 V

(*)  variable according to the type of failure

Summary of Contents for KH-SIL2 Series

Page 1: ...ns pag 2 2 Transmitters with amplified analog output pag 2 Standard installation pag 2 Electrical connections series KH pag 3 3 Protection for outdoor installations of analog sensors pag 4 4 Technical specifications pag 5 5 Safety content according to IEC EN 62061 paragraph 7 pag 6 This manual is related to KH Series pressure transducer SIL2 certified according to the standards IEC EN62061 GEFRAN ...

Page 2: ...ers with amplified analog output Transducers KH SIL2 series Outputs 0 5 10 5V 0 5 5 5V 0 1 10 1V 0 1 10V 1 5V 1 6V 1 10V 0 2 10 2 0 5 4 5V ratiometric 4 20mA etc Installation remarks The transducer must be grounded normally through the machine body or equipment it is installed on Use a shielded cable only The cable shield must be grounded on PLC side and left floating on machine side on KH version...

Page 3: ...nsor is connected in series with the current loop Interfaces with SRP CS and voltage devices RATIOMETRIC AND VOLTAGE AMPLIFIED OUTPUT CURRENT AMPLIFIED OUTPUT mod E Red Black Red Black White OUTPUT POWER SUPPLY SIGNAL POWER SUPPLY 2 1 3 4 G Deutsch DT04 4P Z M12 x 1 4 pin S AMP Superseal 1 5 E EN 175301 803 K Metri Pack 150 Protection IP67 Protection IP67 Protection IP67 Protection IP67 Protection...

Page 4: ...ND PLC side Ground D4 D1 D2 D3 J2 J2 J2 Transducer side 24Vdc Transducer side OUT Transducer side GND B72210 S 250 K01 B72210 S 250 K01 B72210 S 250 K01 B72210 S 250 K01 PLC ground machine ground 1 1 1 1 1 1 1 Pressure Analog current output CAL signals if any do not require protection J1 J1 J1 PLC side 24Vdc PLC side IN PLC side Ground D1 D3 J2 J2 Transducer side 24Vdc Transducer side OUT B72210 S...

Page 5: ...rature effects over compensated range zero 0 01 FS C typ 0 02 FS C max Temperature effects over compensated range span 0 01 FS C typ 0 02 FS C max Response time 10 90 FSO 1 msec Warm up time 3 30 sec Mounting position effects Negligible Humidity Fino a 100 RH non condensing Weight 80 120 gr nominal Mechanical shock 100g 11msec according to IEC 60068 2 27 Vibrations 20g max at 10 2000 Hz according ...

Page 6: ...urpose to verify that there are no occlusion of the pressure channel which would lead to malfunctioning The inspection is visual after removing the probe from the process seat Frequency every year Testing the sensor calibration The test is intended to check the correctness of the transduction curve of the sensor It s done by applying known pressure points to the transducer and checking the output ...

Page 7: ...ector broken Sensor not connected Sensor not powered Bridge broken 1 Power down and remove the sensor 2 Check that the power supply is connected If necessary restore the power supply 3 Check for continuity between the pins of the connector and the power supply If necessary replace the cable and the connector 4 Check if the power values are within the specifications indicated in this manual If nece...

Page 8: ...8 85198A_Manual of Electrical Installation for Pressure Probes KH SIL2 Mobyle series_07 2019_ENG via Sebina 74 25050 PROVAGLIO D ISEO BS ITALIA tel 0309888 1 fax 0309839063 Internet http www gefran com ...

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