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Edwards D395-90-000, Instruction Manual

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Edwards D395-90-000 Instruction Manual Download Page 24

D395-90-880 Issue E

Page 18

© Edwards Limited 2010. All rights reserved.

Edwards and the Edwards logo are trademarks of Edwards Limited.

MAINTENANCE

5.3

Cleaning the controller

If necessary, use a soft dry cloth to clean the exterior of the Controller. Do not clean with harsh abrasives or liquids. 

5.4

Software upgrade

As new compatible gauges are released, a software upgrade for the ADC might be necessary. If you have purchased 
a new gauge which is not listed in 

Table 1

, and the display shows "???" when the gauge is connected, then you may 

need an upgrade. Please contact Edwards for details, quoting the serial number and the software version number of 
the ADC. The software version number is shown on the display during power-up, in the form "AdCxx".

5.5

Calibration service

A calibration service is available for all Edwards Controllers and gauges. If you require a calibration certificate for 
your ADC, please contact Edwards.

Chart recorder 
output voltage not 
as expected

Excessive loading on output

Set the ADC into voltage display mode (see 

Section 4.5.5

) 

and compare the displayed voltage with the output 
voltage. If they are different then the loading may be 
incorrect. Check the connections and compare with the 
specification in 

Section 2.5.2

.

Relays chattering

Insufficient hysteresis

Adjust the set-point low threshold lower or adjust the set-
point high threshold higher. See 

Section 4.2.1

.

RS232 no response

Cable wiring incorrect

Check that the wiring agrees with 

Figure 8

 or 

9

.

Protocol on master does not 
match ADC

Check that the master is set to 9600 baud, 8 data bits, 
1 stop bit, and no parity.

Handshaking selected at master Check that no handshaking is selected. ADC does not 

support CTS/RTS and Xon/Xoff.

RS232 erratic

Message rate too fast

Ensure that the master is not sending more than 
3 messages per second. Wait for reply from the ADC 
before sending another message.

Table 11 - Fault finding guide (continued)

Symptom

Possible cause

Remedy

Summary of Contents for D395-90-000

Page 1: ...D395 90 880 Issue E Instruction Manual Active Digital Controller Description Item Number Active Digital Controller Standard Version D395 90 000 Active Digital Controller Enhanced Version D395 91 500 ...

Page 2: ...t for Measurement Control and Laboratory Use General Requirements EN61326 1 2013 Electrical equipment for measurement control and laboratory Class B Emissions Use EMC requirements General requirements Industrial Immunity EN50581 2012 Technical Documentation for the Assessment of Electrical and Electronic Products with respect to the Restriction of Hazardous Substances Following the provisions of 2...

Page 3: ...necting the electrical supply 9 3 3 2 Connecting active gauges 9 3 3 3 Connecting the analogue relay connector enhanced only 10 3 3 4 Connecting the serial interface enhanced only 10 4 OPERATION 11 4 1 Front panel description 11 4 2 Power up 11 4 2 1 Return to Factory Defaults 11 4 3 Gauge identification 12 4 4 Gauge display standard 12 4 5 Menu structure enhanced 13 4 5 1 Gauge pressure display 1...

Page 4: ...bers 23 Appendix B RS232 Commands 25 Appendix C RS232 Queries 27 Index 29 For return of equipment complete the HS Forms at the end of this manual Illustrations Figure Page 1 Pin connections for an 8 way FCC RJ45 4 2 Pin connections and pin out for the analogue relay connector 5 3 Pin connections for the serial comms connector 6 4 Bench mounted dimensions mm 7 5 Panel cut out required 8 6 Panel mou...

Page 5: ...ector pin out 4 3 Pin connections and pin out for the analogue relay connector 5 4 Pin connections for the serial comms connector 6 5 Component checklist 7 6 Front panel symbols and their functions 11 7 Gauge ID numbers 12 8 Menu items 13 9 RS232 commands 15 10 RS232 queries 16 11 Fault finding guide 17 12 Accessories 21 A1 ADC error numbers 23 Trademark credits Barocel is a registered trademark o...

Page 6: ...This page has been intentionally left blank D395 90 880 Issue E Page iv Edwards Limited 2010 All rights reserved Edwards and the Edwards logo are trademarks of Edwards Limited ...

Page 7: ...ges The ADC is available in two versions The Standard version provides a large clear LED display for a single gauge and the Enhanced version has additional features 2 gauge inputs 2 set point relays analogue outputs for data recording and an RS232 interface for control and data monitoring on a remote PC Throughout this manual certain sections are applicable only to the Standard or Enhanced version...

Page 8: ...D395 90 880 Issue E Page 2 Edwards Limited 2010 All rights reserved Edwards and the Edwards logo are trademarks of Edwards Limited This page has been intentionally left blank ...

Page 9: ...t 240 V a c Fuse The unit is protected by an internal fuse This fuse is not user replaceable Ambient operating temperature range 0 oC to 40 oC Ambient storage temperature range 30 o C to 70 o C Maximum ambient operating humidity Max 90 RH non condensing at 40 o C Maximum operating altitude 2000 m max IP rating IP20 IP40 when panel mounted For indoor use only Mass 0 33 kg Dimensions w x h x d 96 x ...

Page 10: ... 2 5 1 Active gauge connectors Figure 1 Pin connections for an 8 way FCC RJ45 Connector type RJ45 8 way refer to Figure 1 Power supply 24 V d c nominal Maximum power rating 4 W total Table 2 Gauge connector pin out Pin Allocation 1 Power supply positive 2 Power supply common 3 Signal input 4 Identification 5 Signal common 6 Control line 1 7 Control line 2 8 N C ...

Page 11: ...re 2 Relays Relay type Volt free single pole change over Relay voltage 48 V max Relay current 1A 48 V d c 2A 24 V d c Analogue outputs Output voltage 0 to 10 V Minimum load impedance 10 kΩ Maximum current 1 mA Accuracy 2 10 mV Table 3 Pin connections and pin out for the analogue relay connector Pin Allocation 1 Analogue output common 2 Analogue output signal 1 3 Relay 2 common 4 Relay 1 normally C...

Page 12: ...y sub miniature D type socket refer to Figure 3 RS232 transmit mark 5 V Iout max 1 5 mA space 5 V Iout max 1 5 mA RS232 receive mark 0 8 V space 2 4 V input resistance 5 kΩ Maximum input 25 V RS232 protocol 9600 baud 1 stop bit 8 data bits no parity Maximum cable length 10 m Message rate 3 per second maximum Table 4 Pin connections for the serial comms connector Pin Allocation 1 N C 2 RS232 transm...

Page 13: ...is not to be used immediately store the Controller in suitable conditions as described in Section 6 1 3 2 Fitting the controller CAUTION Ensure that the unit is installed where fluids cannot enter into the Controller The Controller is IP20 rated and therefore has no protection against fluid ingress 3 2 1 Bench top mounting The ADC can be used on a bench top Figure 4 shows the dimensions of the Con...

Page 14: ...nd bottom and 15 mm to the sides for sufficient air circulation Figure 5 Panel cut out required Figure 6 Panel mounting the ADC z Make a cut out in the panel according to Figure 5 The minimum panel thickness should be 1 5 mm z Fit the panel mount clamps to the case by placing into the recesses and sliding towards the rear of the case Use both the left and right or the top and bottom mounting posit...

Page 15: ...auge and will invalidate the warranty One or two depending on version compatible Active Gauges can be connected to the gauge connectors on the rear panel Connect the gauges using Edwards Active Gauge cables These are available ready made in different lengths see Section 7 2 WARNING Ensure that the Controller is earthed grounded via the electrical supply cable and observe all appropriate safety pre...

Page 16: ...e can be connected to a chart recorder or other similar equipment The outputs are buffered to prevent disturbance of the gauge signal and will follow the gauge signal to within the accuracy specified in Section 2 5 2 3 3 4 Connecting the serial interface enhanced only The ADC has an RS232 interface built in which allows a host PC to control the ADC The ADC is fitted with a 9 way D type socket on t...

Page 17: ...ilable 4 2 1 Return to Factory Defaults The ADC can be reset to factory defaults by holding the UP key before you apply power to the ADC and continuing to hold it throughout the startup process The startup screens will be displayed and then Err01 will be shown to confirm successful reset Disconnect all connected gauges and power cycle to clear this message Table 6 Front panel symbols and their fun...

Page 18: ...auge display standard The ADC will continuously display the pressure measured by an Active Gauge The display is in exponential format The pressure units are shown by the LEDs on the right of the display Use the DOWN key to change the pressure units The units mbar Torr and Pascal will be selected in turn A further press of the DOWN key will select voltage mode in which the output voltage of the Act...

Page 19: ... the form Err followed by a number Refer to Appendix A for a list of error numbers and suggested remedies To clear the error message from the display press the ENTER key If the error originated in a gauge it may be necessary to disconnect the gauge and correct the fault before the error message can be cleared If a gauge is not connected then the display will show 4 5 2 Set point and link threshold...

Page 20: ... controlling gauge is flashing press the UP or DOWN key to move to a different menu option 4 5 4 Gauge calibration If gauge 1 or gauge 2 is a type which supports remote calibration for example APG X or WRG then the calibration options will be available To calibrate gauge 1 select G1 and CAL LEDs together using the UP and DOWN keys and then press the ENTER key The message CAL d will be displayed fo...

Page 21: ...e messages will be ignored if a new start character is received Responses from the ADC end with a carriage return cr There are two basic types of message sent to the ADC z Commands sending information to the ADC starting with z Queries requesting information from the ADC starting with 4 6 2 Commands Commands send information to the ADC These can be literal commands such as turn gauge on or values ...

Page 22: ...n and off at the pressures defined by the set point 1 thresholds of the first ADC 4 7 2 Using one ADC Two gauges may be linked together to allow automatic switching of one gauge by another z Connect a controlling gauge to the ADC APG APG100 and APGX Gauges z Connect a controlled gauge to the ADC AIM S and AIM X Gauges z Set the link threshold on the link menu The ADC will automatically recognise t...

Page 23: ...ure the voltage present between pins 1 and 2 of the RJ 45 gauge connector This should be about 23V If there is no voltage present then the internal fuse could be blown This fuse is not replaceable and will only blow in the event of a major malfunction Display shows ERR An error has been detected by the Controller or by a connected gauge Refer to Appendix A for a description of error numbers Press ...

Page 24: ...certificate for your ADC please contact Edwards Chart recorder output voltage not as expected Excessive loading on output Set the ADC into voltage display mode see Section 4 5 5 and compare the displayed voltage with the output voltage If they are different then the loading may be incorrect Check the connections and compare with the specification in Section 2 5 2 Relays chattering Insufficient hys...

Page 25: ...may be able to recycle the ADC and or cables contact Edwards or your supplier for advice also see below The ADC and associated cables are within the scope of the European Directive on Waste Electrical and Electronic Equipment 2002 96 EC From August 2005 Edwards will offer European customers a recycling service for the ADC cables at the end of the product s life Contact Edwards for advice on how to...

Page 26: ...D395 90 880 Issue E Page 20 Edwards Limited 2010 All rights reserved Edwards and the Edwards logo are trademarks of Edwards Limited This page has been intentionally left blank ...

Page 27: ...rt 7 2 Accessories Table 12 shows the range of accessories that can be purchased Table 12 Accessories Product Description Ordering Information Active Digital Controllers Active Digital Controllers Standard version Active Digital Controllers Enhanced version D395 90 000 D395 91 500 Gauges APG100 XM APG100 XLC Ranges APG L APG M APG MP Ranges APGX L APGX M APGX MP APGX H Ranges AIM S AIM SL AIM X AI...

Page 28: ...D395 90 880 Issue E Page 22 Edwards Limited 2010 All rights reserved Edwards and the Edwards logo are trademarks of Edwards Limited This page has been intentionally left blank ...

Page 29: ...gauge is too high The gauge may be defective 12 Gauge voltage too low The voltage from a gauge is too low The gauge may be defective 13 AIM Gauge not striking The voltage from a gauge is too low The gauge may be defective 21 WRG Pirani failure Errors specific to WRG Please refer to the WRG manual for details 22 WRG magnetron short 23 WRG striker fail 24 WRG magnetron not struck 25 APGX filament fa...

Page 30: ...grade may be needed See Section 5 4 83 Gauge not reading pressure An attempt was made to read a gauge which was switched off Check that the gauge is switched on Use the command GW if necessary 84 AIM gauge striking An attempt was made to read a gauge which was striking Wait until the gauge has struck and try again 90 Incorrect gauge type query command not appropriate The command or query is not su...

Page 31: ...ent to pressing the ENTER key on the front panel to clear an error message If the error originated in a gauge it may be necessary to disconnect the gauge and correct the fault before the error message can be cleared Example GA1 GW x y Turn the gauge on channel x to on or off If the gauge type cannot be switched on and off for example APG then an error message is returned The value of y is 0 off 1 ...

Page 32: ...D395 90 880 Issue E Page 26 Edwards Limited 2010 All rights reserved Edwards and the Edwards logo are trademarks of Edwards Limited This page has been intentionally left blank ...

Page 33: ...hannel x If the current units are volts then the voltage will be returned If the gauge is switched off or has an error then an error number will be returned Refer to Appendix A for a description of error numbers Example GA1 Reply 3 20E 05 GV x Returns the gauge version for channel x as a number The number is the same as the ID number indicated on the display when a gauge is first connected Example...

Page 34: ...d Edwards and the Edwards logo are trademarks of Edwards Limited Appendix C US Returns the current units setting Example US Reply 0 volts 1 mbar 2 Pascal 3 Torr VL x Returns the gauge voltage reading for channel x as a number of the form vv vvv Example VL2 Reply 5 324 ...

Page 35: ...nector pin out 4 Gauge display standard 12 Gauge ID numbers 12 Gauge identification 12 Gauge pressure display 13 I IBM PC RS232 interface 9 way 10 Installation 7 Introduction 1 21 L Linking two ADCs enhanced only 16 M Maintenance 17 Mechanical data 3 Menu items 13 Menu structure enhanced 13 Message basics 15 O Operating and storage data 3 Operation 11 P Panel cut out required 8 Panel mounting 8 Pa...

Page 36: ...D395 90 880 Issue E Page 30 Edwards Limited 2010 All rights reserved Edwards and the Edwards logo are trademarks of Edwards Limited Index ...

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