Edwards D395-90-000 User manual

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

This product has been manufactured under a quality management system certified to ISO 9001:2008
Declaration of Conformity
We, Edwards Limited,
Crawley Business Quarter,
Manor Royal,
Crawley,
West Sussex, RH10 9LW, UK
declare under our sole responsibility, as manufacturer and person within the EU authorised
to assemble the technical file, that the product(s)
Active Digital Controller – Standard version D395-90-000
Active Digital Controller – Enhanced version D395-91-500
to which this declaration relates is in conformity with the following standard(s) or other
normative document(s)
EN61010-1: 2010 Safety Requirements for Electrical Equipment 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
2014/35/EU Low Voltage Directive
2014/30/EU Electromagnetic Compatibility (EMC) Directive
2012/19/EU Waste from Electrical and Electronic Equipment (WEEE) Directive
2011/65/EU Restriction of Certain Hazardous Substances (RoHS) Directive
Note: This declaration covers all product serial numbers from the date this Declaration was
signed onwards.
16.07.2015, Eastbourne
Larry Marini, Senior Technical Manage
r
Date and Place
P200-03-720 Issue F

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Contents
D395-90-880 Issue E
Contents
Section Page
1 Introduction .......................................................................................1
1.1 Scope and definitions ................................................................................................... 1
1.2 Product description ...................................................................................................... 1
2 Technical data ....................................................................................3
2.1 Electrical data ............................................................................................................ 3
2.2 Operating and storage data ............................................................................................ 3
2.3 Mechanical data .......................................................................................................... 3
2.4 Display .....................................................................................................................3
2.5 Connections ............................................................................................................... 4
2.5.1 Active gauge connectors ................................................................................................ 4
2.5.2 Analogue / relay connector (enhanced only) ........................................................................ 5
2.5.3 Serial communications (enhanced only) .............................................................................. 6
3 INSTALLATION .....................................................................................7
3.1 Unpack and inspect ...................................................................................................... 7
3.2 Fitting the controller .................................................................................................... 7
3.2.1 Bench-top mounting ..................................................................................................... 7
3.2.2 Panel mounting .......................................................................................................... 8
3.3 Rear panel description .................................................................................................. 9
3.3.1 Connecting 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 ................................................................................................13
4.5.2 Set-point and link threshold adjustment ............................................................................13
4.5.3 Set-point 2 controlling gauge .........................................................................................14
4.5.4 Gauge calibration .......................................................................................................14
4.5.5 Units selection ..........................................................................................................14
4.6 RS232 operation (enhanced only) ....................................................................................15
4.6.1 Message basics ..........................................................................................................15
4.6.2 Commands ...............................................................................................................15
4.6.3 Queries ...................................................................................................................15
4.6.4 Responses ................................................................................................................16
4.7 Linking two ADCs (enhanced only) ...................................................................................16
4.7.1 Using two ADCs ..........................................................................................................16
4.7.2 Using one ADC ...........................................................................................................16
5 MAINTENANCE ................................................................................... 17
5.1 Safety .....................................................................................................................17
5.2 Fault finding guide ......................................................................................................17
5.3 Cleaning the controller ................................................................................................18
gea/0066/12/09

D395-90-880 Issue E
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Contents
5.4 Software upgrade .......................................................................................................18
5.5 Calibration service ......................................................................................................18
6 STORAGE AND DISPOSAL ....................................................................... 19
6.1 Storage ...................................................................................................................19
6.2 Disposal ...................................................................................................................19
7 SPARES AND ACCESSORIES ..................................................................... 21
7.1 Introduction .............................................................................................................21
7.2 Accessories ...............................................................................................................21
Appendix A Error Numbers ............................................................................ 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 mounting the ADC ................................................................................................ 8
7 Rear panel connections ................................................................................................. 9
8 IBM PC RS232 interface - 9-way ......................................................................................10
9 IBM PC RS232 interface - 25-way .....................................................................................10
10 Front panel displays ....................................................................................................11

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Contents
D395-90-880 Issue E
Tables
Table Page
1 Compatible gauges for the ADC ....................................................................................... 1
2 Gauge connector 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 of Edwards.

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D395-90-880 Issue E
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Edwards and the Edwards logo are trademarks of Edwards Limited.
Introduction
D395-90-880 Issue E
1Introduction
1.1 Scope and definitions
This manual provides installation, operation and maintenance instructions for the Edwards Active Digital Controller.
You must use the Controller as specified in this manual. Read this manual before you install and operate the Edwards
Active Digital Controller. Important safety information is highlighted as WARNING and CAUTION instructions; you
must obey these instructions. The use of WARNINGS and CAUTIONS is defined below.
CAUTION
Cautions are given where failure to observe the instruction could result in damage to the equipment, associated
equipment and process.
The following IEC warning label appears on the Active Digital Controller:
1.2 Product description
The ADC (Active Digital Controller) is used for displaying pressures measured by Edwards Active Gauges. 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 versions. These sections
are marked "Standard only" or "Enhanced only". The compatible gauges that can be used with the Active Digital
Controller are listed in Table 1.
WARNING
Warnings are given where failure to observe the instruction could result in injury or death to
people.
Warning - refer to accompanying documentation.
From August 2005, Edwards will offer European customers a recycling service.
WARNING
Improper use of the equipment could cause damage to it or injury to people. The user is
responsible for the safe operation and maintenance of the equipment.
Table 1 - Compatible gauges for the ADC
ADC version Compatible gauges
Standard APG100-XM, APG100-XLC, APG-L, APG-M, APG-MP,
APGX-H, APGX-L, APGX-M, APGX-MP and WRG
Enhanced As above, plus AIM-S, AIM-X and ASG

D395-90-880 Issue E
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Technical data
D395-90-880 Issue E
2Technicaldata
2.1 Electrical data
2.2 Operating and storage data
2.3 Mechanical data
2.4 Display
Connector type CEE/IEC 320
Electrical supply 100 to 240 V a.c. 47 to 63 Hz
Power consumption 15 W maximum
Peak inrush current 20 A at 110 V a.c.
40 A at 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 oC to 70 oC
Maximum ambient operating humidity Max 90% RH non condensing at 40 oC
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 48 x 165 mm
Panel cut-out 92+0.8 x 45+0.6 mm to DIN43700
Panel thickness 1.5 mm minimum
Type High brightness green LED 7-segment display
LED enunciators for units and display mode
Update rate 300 ms

D395-90-880 Issue E
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Technical data
2.5 Connections
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
3Signalinput
4 Identification
5 Signal common
6Controlline1
7Controlline2
8N/C

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Technical data
D395-90-880 Issue E
2.5.2 Analogue / relay connector (enhanced only)
Figure 2 - Pin connections and pin-out for the analogue / relay connector
Connector type 9-way sub-miniature 'D' type plug (refer to Figure 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 - Closed
5 Relay 1 normally - Open
6 Analogue output signal 2
7 Relay 2 normally - Closed
8 Relay 2 normally - Open
9 Relay 1 common

D395-90-880 Issue E
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Technical data
2.5.3 Serial communications (enhanced only)
Figure 3 - Pin connections for the serial comms connector
Connector type 9-way 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
1N/C
2RS232transmit
3RS232received
4N/C
5RS232common
6N/C
7N/C
8N/C
9N/C

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INSTALLATION
D395-90-880 Issue E
3 INSTALLATION
3.1 Unpack and inspect
Remove all of the packaging material and check the ADC. If the Controller is damaged, follow the Edwards return of
equipment procedures that are laid out in the back of this manual. Do not use the Controller if it is damaged.
Check that your package contains the items that are listed in Table 5. If any of these items are missing, notify your
supplier in writing within three days. If the Controller 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 Controller that are required for bench
top use. The self-adhesive non-slip feet may be fitted to the bottom of the Controller if required.
Figure 4 - Bench mounted dimensions (mm)
Table 5 - Component checklist
Quantity Description Check (3)
1 Active Digital Controller 
2 Panel mounting clamps 
4Non-slipfeet 
WARNING
Ensure that all wiring is safely secured so that people cannot trip on them.

D395-90-880 Issue E
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INSTALLATION
3.2.2 Panel mounting
If the Controller is to be panel mounted, follow the directions given in Figure 5 and Figure 6 below.
CAUTION
Allow 150 mm at the rear for cables. Allow 50 mm top and bottom and 15 mm to the sides for sufficient air
circulation.
Figure 5 - Panel cut-out required
Figure 6 - Panel mounting the ADC
zMake a cut-out in the panel according to Figure 5. The minimum panel thickness should be 1.5 mm.
zFit 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 positions.
zSlide the Controller into the panel from the front. The Controller is a push fit and will be retained by the
spring clamps.

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INSTALLATION
D395-90-880 Issue E
3.3 Rear panel description
Figure 7 - Rear panel connections
3.3.1 Connecting the electrical supply
Connect the electrical supply to the Controller with an appropriate supply cable fitted with an IEC plug. Suitable
cables are available from Edwards.
3.3.2 Connecting active gauges
CAUTION
Do not connect Barocel™ capacitance manometers to the ADC. Doing so will result in damage to the gauge 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 precautions for the safe installation and handling of electrical equipment. High
voltages exist in the Controller when it is operating.
WARNING
If access to the IEC connector is restricted an additional isolation device should be provided, that
will be easily accessible by an operator.
ADC standard rear panel ADC enhanced rear panel

D395-90-880 Issue E
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INSTALLATION
3.3.3 Connecting the analogue / relay connector (enhanced only)
The analogue / relay connector provides two relays for control of your own equipment, and analogue outputs which
can be used for recording the gauge signals.
3.3.3.1 Using relays
The two relays are volt-free single pole change-over types. Relay 1 is controlled by gauge 1, and relay 2 is controlled
by gauge 1 or gauge 2. The relays are energised when the indicated pressure of the relevant gauge falls below the
set-point low threshold, and de-energised when the pressure rises above the set-point high threshold. The threshold
values are independently set using the front panel keys (see Section 4.5.3). The LED indicators on the front panel are
lit when the relays are energised.
3.3.3.2 Using analogue outputs
Two analogue outputs provide the gauge signal voltage for monitoring or recording purposes. These 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 the rear panel. The interface uses two lines for data transfers and
an additional line as a signal common. Hardware handshaking is not implemented.
If connecting to an IBM compatible PC fitted with a 9-way D' type socket then a 'straight through' male-female 9-way
extension cable can be used to connect the ADC to the computer as shown in Figure 8. Connection to an IBM PC fitted
with a 25-way serial connector should be made as shown in Figure 9.
Use shielded cable for the interface to reduce interference problems and limit the length of the RS232 link to less
than 10 metres. For longer links, install line drivers.
Figure 8 - IBM PC RS232 interface - 9-way
Figure 9 - IBM PC RS232 interface - 25-way
WARNING
Do not connect the relays to voltages greater than 48 V d.c.
Do not use the relay outputs for safety purposes.

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OPERATION
D395-90-880 Issue E
4OPERATION
4.1 Front panel description
Figure 10 - Front panel displays
4.2 Power up
When you apply power to the ADC, all LEDs in the display will light for 2 seconds to confirm operation. The software
version will then be displayed for a further 2 seconds, in the format "AdCxx". If you need to contact Edwards for
support regarding the ADC, please have this software version number available.
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 functions
Symbol Name Function
UP Move to previous selection.
Cycle selected numerical values up.
DOWN Move to next selection.
Cycle selected numerical values down.
ENTER Turn the selected gauge on or off. Edit the selected numerical item.
Move to the next digit of a numerical value.
ADC standard front panel ADC enhanced front panel

D395-90-880 Issue E
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OPERATION
4.3 Gauge identification
When a gauge is connected to the ADC, the display mode will change to display the reading from that gauge. An
identification message consisting of "ID" followed by a number will be displayed for 3 seconds to show that the ADC
has identified the new gauge. The ID numbers and corresponding gauges are shown in Table 7.
If a gauge cannot be identified or is of a type which is not supported by the Controller, then the message "???" will be
displayed.
Where an ASG is used, you need to select the full-scale range of the gauge. This can only be done when the gauge is
first connected. After the identification message "ID15", the display will show 1.03, representing a 1000 mbar ASG.
You can change this to 2.03for a 2000 mbar ASG using the UP and DOWN keys ( / ). When the required value is
showing on the display, press the ENTER key ( ).
4.4 Gauge 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 Active Gauge will be displayed, and the LED enunciators will
extinguish. To return to pressure display, press the DOWN key ( ) again.
If an error condition is detected by the gauge or by the controller, then the display will show an error message of 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 DOWN 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 "- - -".
Table 7 - Gauge ID numbers
ID number Gauge
ID 04 APG-M / APG-MP
ID 05 APG-L
ID 06 APGX-H
ID 11 AIM-S
ID 15 ASG
ID 19 AIM-X
ID 20 WRG
ID 21 APGX-L / APGX-M / APGX-MP /
APG100-XM / APG100-XLC

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OPERATION
D395-90-880 Issue E
4.5 Menu structure (enhanced)
The LEDs along the top of the ADC indicate which item is currently being shown on the numeric display. To select the
next item press the DOWN key ( ), and to select the previous item press the UP key ( ). The available items are
listed in order in Table 8.
4.5.1 Gauge pressure display
When gauge 1 is selected (G1 LED lit) the pressure measured by gauge 1 is displayed. The display is in exponential
format. The units are shown by the LEDs on the right of the display. If gauge 1 is a controllable gauge (for example
an AIM gauge), then you can turn it on and off by pressing the ENTER key ( ). Controllable gauges default to off,
and the display shows "OFF". When the gauge is turned on the display will show "Str" whilst the gauge is starting up,
and will then display pressure.
When gauge 2 is selected (G2 LED lit) gauge 2 is displayed and can be controlled similarly.
If either gauge 1 or gauge 2 is displayed, the status of the set-point relays is indicated by the SP1 and SP2 LEDs. The
relays are energised and the LEDs are lit when the measured pressure is below the set-point threshold.
If an error condition is detected by the gauge or by the controller, then the display will show an error message of 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 adjustment
The set-point and link thresholds are adjusted using the front panel keys. Thresholds are entered and displayed as
pressures, using the currently selected units.
To make an adjustment, first select the required threshold using the UP and DOWN keys ( / ). The LEDs are lit
in combination to show which threshold is selected. For example: if SP1 and Hi LEDs are lit together, then the display
is showing the set-point 1 high threshold. If G1, G2 and Hi LEDs are lit together, then the display is showing the link
high threshold.
To change the value press the ENTER key ( ). The first digit on the display will flash and can be changed using the
UP and DOWN keys ( / ). When you have selected the required value, press the ENTER key ( ) again to select
the next digit. Repeat this process for the second digit and then the exponent. Note that the complete exponent is
Table 8 - Menu items
Gauge 1 pressure display
Gauge 2 pressure display
Set-point 1 high threshold
Set-point 1 low threshold
Set-point 2 high threshold
Set-point 2 low threshold
Set-point 2 controlling gauge
G1-G2 link high threshold
G1-G2 link low threshold
Gauge 1 calibrate
Gauge 2 calibrate
Units select

D395-90-880 Issue E
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OPERATION
adjusted as one number from -10 to +6. When the ENTER key ( ) is pressed after adjusting the exponent, the
complete number will be entered and the new threshold will become effective.
For each set-point, or link threshold, the low threshold must always be lower than or equal to the high threshold. If
you enter a low threshold which is higher than the high threshold (or vice versa), then both thresholds will be set to
the value that you have just entered.
If you set the high and low thresholds to the same value then there will be no hysteresis, and the relay may switch
on and off several times as the pressure changes through the set-point threshold. It is recommended that some
hysteresis is always used.
Note: The set-point or link thresholds can be set to any value in the range 1.0 x 10-10 to 9.9 x 106. If you set the
thresholds to a pressure which cannot be measured by the gauge which you are using, then the set-points
or link will not operate.
4.5.3 Set-point 2 controlling gauge
The set-point 2 relay can be controlled by gauge 1 or gauge 2. To select which gauge is controlling the relay, first
select the menu option using the UP and DOWN keys ( / ). When this option is selected, the numeric display will
be blank and the SP2 LED will be lit. Either the G1 or G2 LED will flash to show the currently selected controlling
gauge. To change between gauge 1 and gauge 2, press the ENTER key ( ). When the required 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 for 3 seconds to show that the
calibration command has been sent to the gauge. To calibrate gauge 2, first select G2 and CAL LED's.
Where an ASG is used, the calibration functions as a zero offset adjustment. You can cancel the calibration by
pressing the ENTER key ( ) again. The message "OFF" will be displayed to confirm that the offset adjustment has
been removed.
Please refer to the instruction manual of the specific gauge which you are using for details of the correct calibration
procedure.
4.5.5 Units selection
You can change the pressure units for the display by selecting the units menu option. When this option is selected,
the numeric display will be blank, and the currently selected units will flash. To change the units, press the ENTER
key ( ). The units enunciator will move between mbar, Torr and Pa with each press of ENTER. A further press of
the ENTER key ( ) will select voltage mode, when the LED enunciators will extinguish and '0.000' will flash on the
display. Pressing ENTER key ( ) again will return to mbar. When the required units are flashing, press the UP or
DOWN keys ( / ) to move to a different menu option.
When the units are changed, the set-point values will be converted to the new units. For example, if a set-point
threshold is entered as 1.0 x10-3 mbar and the units are changed to Torr, then the value will be displayed as
7.5 x 10-4 Torr.