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Instruction Manual PUC 28 

 

 

 

 

 

 

Fig. 2: Alternating display of the temperature and humidity showing that the values have dropped below 
the limits. 

3.4 Display and controls 

 

   

 
 

Fig. 3: Front of the PUC 28 

 
The process monitoring device has an LCD display that can show three measured values. The 
integrated keys are used to confirm alarms and for the menu-driven setting of the parameters 
for the PUC 28. Functions are dynamically assigned to the keys. 

 

 

Enter 

 

Scroll right 

 

Scroll up 

 

Menu 

Pressure 
Temperature (optional) 
Humidity (optional) 

Summary of Contents for PUC 28

Page 1: ...n Manual PUC 28 Process monitoring device for clean rooms halstrup walcher GmbH Stegener Stra e 10 D 79199 Kirchzarten Tel 49 0 76 61 39 63 0 Fax 49 0 76 61 39 63 99 E Mail info halstrup walcher com I...

Page 2: ...Basic settings SETTINGS 15 5 2 1 Language SETTINGS LANGUAGE 15 5 2 2 Changing the password SETTINGS NEW PASSWD 15 5 2 3 Measurement range of the internal pressure sensor SETTINGS MEAS R 15 5 2 4 Exte...

Page 3: ...of the RS232 connector 33 6 4 Interface configuration 34 6 5 Configuration software 34 7 Profibus DP interface 38 7 1 Profibus DP address 38 7 2 Terminating resistors 38 7 3 Modules 39 7 4 Setting th...

Page 4: ...nstruction manual with care It must be readily available throughout the lifecycle of the device It must be provided to any individuals who assume responsibility for operating the device at a later dat...

Page 5: ...rwise devices with low measurement ranges could be damaged Measurement errors may occur if the instrument is not kept protected from sunlight Specific safety precautions are given in individual sectio...

Page 6: ...ry up to and including death if the corresponding instructions are not followed CAUTION This warns you of a potential hazard that could lead to significant property damage if corresponding instruction...

Page 7: ...a value moves outside its limits In addition two relay contacts changeover contacts represent these alarm states in some variants of the PUC 28 these relay contacts are not present These contacts may...

Page 8: ...very hour If the PUC 28 is in the parameter mode calibration is postponed until after the parameters are set If the PUC 28 has an RS232 or Profibus DP interface the cyclic calibration can be replaced...

Page 9: ...ntrols Fig 3 Front of the PUC 28 The process monitoring device has an LCD display that can show three measured values The integrated keys are used to confirm alarms and for the menu driven setting of...

Page 10: ...lied from outside in case the negative range shall be re calibrated a reference pressure of 100Pa resp 250Pa has to be applied from outside 3 7 Connections Terminal Connection description Description...

Page 11: ...2 Terminal assignment relay connector in some variants of the PUC 28 the relay contacts and therefore also the relay connector are not present Pressure input port at rear side input for measurement D...

Page 12: ...outside Fig 5 Profibus DP interface 9 pole D SUB jack female or 5 pole M12 jack female Terminal assignment see section 7 5 entitled Assignment of the Profibus connector The PUC 28 variants with 9 pol...

Page 13: ...unction Effect Menu Call or exit the menu for setting the parameters Scroll up Navigate Selecting a submenu moving the arrow Set a parameter Increasing the number at the cursor or changing properties...

Page 14: ...sure output signal HYST HYST Hysteresis U U Voltage signal 0 10 V I 0 I 0 Current signal 0 20 mA I 4 I 4 Current signal 4 20 mA 2 x Scroll once up to mark the next submenu item SETTINGS NEW PASSWD Ope...

Page 15: ...s Default setting Password Consists of 4 digits 0000 9999 0000 Table 7 Password parameter 5 2 3 Measurement range of the internal pressure sensor SETTINGS MEAS RANGE This parameter can specify the mea...

Page 16: ...n the default setting the display shows three values Pressure Temperature Humidity There are three submenus for these parameters The display of each individual value can be blanked in these submenus b...

Page 17: ...lues The internal acoustic signalling device can be activated or deactivated Submenu Parameter description Range of values Default setting ON or OFF Activation or deactivation respectively of the acou...

Page 18: ...Recall the delivery state SETTINGS DELIVERY ST According the acual configured measurement range 100 Pa or 250 Pa all menu settings are reset to the delivery state and being saved Subsequently the PUC...

Page 19: ...nsor 5 3 2 Limits VALUES WARNING The PUC 28 monitors the measured values and can trigger an alarm if the limit is dropped below or exceeded The upper and lower limits and hysteresis can be set for eac...

Page 20: ...Pa 0 Pa Table 15 Limits parameter description Value applies to a PUC 28 with an internal 100 Pa sensor Value applies to a PUC 28 with an internal 250 Pa sensor Please make sure that the VALUE TOP is...

Page 21: ...ions and the desired degree of smoothing Fig 14 Effect of the low pass filter on the measured value display Input sensor Range of values Default setting Internal pressure 0 025 40 s 0 5 s IN 1 0 125 4...

Page 22: ...5 5 1 Switching conditions and relay test RELAY COND TEST In this menu item you specify which measured values are included in controlling the relays internal pressure IN1 and IN2 input signal This se...

Page 23: ...of when the limit is passed the corresponding relay does not switch The acoustic alarm is switched off immediately when the alarm state no longer exists 2 The duration of the alarm state is longer th...

Page 24: ...irst one of the two menu items TEACH has to be called depending if the positive or the negative range should be re calibrated In each case the maximum pressure is being calibrated thus 100Pa resp 250P...

Page 25: ...invalid result is always being discarded After pressing Enter the pressure measurement switches back to the input at the rear side in the display the menu values appears By pressing Menu the normal d...

Page 26: ...placed before the command to read Both when writing and reading a parameter the PUC 28 sends back the same parameter name with the actual value as answer Example for writing WarnPdown 22 5 WarnPdown 2...

Page 27: ...ssure top value 13 WarnPHyst float Pa Warning of int pressure hysteresis 14 WarnIN1Tdown float C Warning of IN1 bottom value input IN1 as temperature 15 WarnIN1Tup float C Warning of IN1 top value inp...

Page 28: ...ignalP integer Signal at analogue output 0 0 20mA 1 4 20mA 2 0 10V 37 SignalIN1 integer Signal at IN 1 0 0 20mA 1 4 20mA 2 0 10V 38 SignalIN2 integer Signal at IN 2 0 0 20mA 1 4 20mA 2 0 10V 39 Sound...

Page 29: ...progress Bit 0 1 Zero point calibration is currently in progress 2 5 WARN byte Warning Status Bit 0 signal dropped below lower warning value of IN 2 or signal is below bottom measurement limit Bit 1 s...

Page 30: ...art ZPCC now The rising edge specifies the starting time the bit has to be reset again during or after the ZPCC 5 CMD CMD byte Reading of the control word 6 Reset PUC 28 Vx x Reset the PUC 28 1 7 TCal...

Page 31: ...outside As soon as the pressure applies stable no more transient oscillations the command TCalibOK has to be sent This actually triggers the pressure measurement During this time the message meas act...

Page 32: ...the calibration value differs more than 30 of the factory calibration 3 Err_NotActive It was tried to read a measured value of a channel which is currently switched off It was tried to cancel a re cal...

Page 33: ...ants 1 PUC 28 variants with 9 pole D SUB jack female directly integrated in the housing only for wall thicknesses up to 5mm Pin No Signal Description 2 TxD Sending line 3 RxD Receiving line 5 GND Grou...

Page 34: ...click on SYSTEM and select the HARDWARE tab Subsequent click on DEVICE MANAGER there select PORTS Now double click on the COM port which is used therafter select the PORT SETTINGS tab 6 5 Configuratio...

Page 35: ...Instruction Manual PUC 28 35 When a measurement is currently running the program presents itself in the following way...

Page 36: ...Tab Measuring Values Here all measured values are displayed graphically and in a list besides there s a possibility to save the values in a CSV compatible file Additionally a zero point calibration a...

Page 37: ...ording the delivery state for this measurement range and resets itself Afterwards these configuration parameters are being load Button Delivery State 250Pa and load The measurement range 250Pa is bein...

Page 38: ...e address is configured using the two rotary DP ADDRESS switches on the back of the PUC 28 Each switch has 10 positions The tens position of the address is set using the left switch the units position...

Page 39: ...entire length signed int Measured value humidity pressure IN 2 in 1 10 rH or 1 10 Pa 4 0x10 1 byte input consistent over byte word Warning States Bit 1 outside the limits Bit 0 within the limits If a...

Page 40: ...rt ZPCC now The rising edge specifies the starting time the bit has to be reset again during or after the ZPCC Bit Description 0 ZPCC by the DP master 1 Start ZPCC now 2 No meaning 3 4 5 6 7 34 0xE0 1...

Page 41: ...Voltage or current Select between voltage 0 10 V or current 0 20 mA 4 20 mA for the analogue channels External pressure External pressure at the IN ports Display Specify the pressure units and whether...

Page 42: ...TxD N Receive transmit data negative A line Housing Shield Shield or protective ground 2 PUC 28 variants with 9 pole D SUB jack female at a flying leads cable Pin No Signal Description 3 RxD TxD P Re...

Page 43: ...he PUC 28 appears in the display 4 After applying the target value confirm using Enter after a few seconds the next target value appears 5 Continue to repeat this process until no more target values a...

Page 44: ...e any abrasive or acidly detergent because the surface can be damaged Don t use any detergent containing isopropanol because the Display Window will be cloudy If IN1 or IN2 has been selected 5 Apply t...

Page 45: ...er 79 4450 20 05 Profibus DP output signal 0 10 V RL 2 k or 0 20 mA RL 500 or 4 20 mA RL 500 input signals 2x 0 10 V Ri 470 k or 0 20 mA Ri 51 or 4 20 mA Ri 51 Relays 2 x changeover contacts optionall...

Page 46: ...Instruction Manual PUC 28 46 12 Dimension drawing...

Page 47: ...L LIMIT FILTER CHOICE VALUE CHANNEL INT PRESS IN 1 IN 2 FILTER 5 4 Filter setting FILTER CHANNEL SETTINGS see separate menu tree RELAY COND TEST RELAY 5 5 1 Switching conditions and relay test VALUE C...

Page 48: ...2 4 External sensors DISPLAY CHANNEL INT PRESS IN1 T IN1 P IN2 H IN2 P DISPLAY 5 2 5 Display CHOICE Pa hPa mbar OFF resp ON OFF CHANNEL SIGNAL CHOICE I 0 I 4 U CHANNEL OUT P IN 1 IN 2 SIGNAL 5 2 6 Si...

Page 49: ...ting the PUC 24 Enter code Target value 0 0 Pa Target value x Pa Target value x Pa Selection X further values O cancel SIGNAL T each I U CHOICE SIGNAL T each OUT P IN 1 IN 2 Target value 4 digit value...

Page 50: ...ALUES WARNING Internal pressure lower 120 300 120 300 100 250 Pa Internal pressure upper 120 300 120 300 100 250 Pa Internal pressure Hyst 0 50 125 0 Pa IN 1 T lower 800 800 5 C IN 1 T upper 800 800 6...

Page 51: ...ND CURRENT SETTINGS OUT P 0 10 V 0 20 mA 4 20 mA 4 20 mA IN 1 0 10 V 0 20 mA 4 20 mA 4 20 mA IN 2 0 10 V 0 20 mA 4 20 mA 4 20 mA SOUND On or off On off Off Length 0 1 5 0 2 0 sec DECIMAL PLACES Intern...

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