Operating Instructions for Pneumatic .......... 34
Test Pump TP1
Operating Instructions for Low Pressure ......37
Hand Pump LTP1
Index ............................................................40
WELCOME
This detailed operating manual will help you to become familiar with the
many features of the PC6-AV Calibrator , the simple step by step instructions
will quickly guide you through the procedures for using the calibrator and
other items needed for accurately testing and calibrating numerous types
of instruments. Please take time to carefully read the whole manual before
you begin to use the PC6-AV .
Uncontrolled release of high pressure is hazardous to personnel and may cause
damage to equipment. Before connection of any pressure component to the Pc6
ensure that the component(s) is/are isolated from the pressure supply and any
internal pressure is released slowly .
RECHARGEABLE Ni-MH BATTERIES
Rechargeable Ni-MH batteries must be recycled or disposed of properly.
May explode if damaged or disposed of in fire. DO NOT short-circuit.
CAUTION: Use charger supplied by SI Pressure Instruments only.
Ni-MH
Issue 3 Page ii
QUICK REFERENCE
Keys
ON/OFF
MENU
Activating Functions
Select menuposition cursor press the Enter key
Exit
To exit out of any menu select 'Exit' option,
or press key.
Press to turn unit on and off
Press to access the menus
Press to accept functions or settings
Press to move cursor up/left or increase values
Press to move cursor down/right or decrease values
Press to print/log/start event depending on previous
setting
MENU
under function
MENU
Menu Selection
Pressure
Display
1st Pressfor Menu 1
2ndPressfor Menu 2
3rdPressback to Pressure Display
MENU
MENU
MENU
Data Entry
Press or to position cursor and press
to select required alphanumeric. Press
key to release cursor.
For next data entry, repeat the above procedures
then press once all data is entered
Note:To quickly scroll through alphanumeric lists
hold down the or key.
Overload WarningFlashing display and audible tone at 110%
of FS
Resolution6 digits
Temperature DisplayTemperature of pressure sensor module
Operating Temperature-20 to 70°C
Calibration Temperature20°C ± 2°C
Storage Temperature-40°C to 70°C
Temperature Effects 0.001% of reading/°C between 10-40°C
RS232 Parametersbaud rate 1200, 2400, 4800, 9600, stop bits
1 or 2, status ON/OFF
Zero ResetManual keyboard operation
Data Capacity436 records into a maximum of 20 files, 32k
memory additional 585 records, ( 32k
memory option available )
DisplayBacklit LCD, 16 character x 2 line alpha
numeric
Humidity5 to 95% Relative Humidity non condensing
Resolution SelectIncrease or decrease by a factor of 10
Power Supply6V Ni-MH rechargeable battery pack (see
warning page ii)/ mains operation via
charger (supplied).
Battery LifeFully charged - 10 hours
Recharge Time14-16 hours for full charge
Accuracy (FS)
Better than
0.025%
Resolution (FS)
Better than
0.01%
Low BatteryContinuous check, audio and visual
warning
Dimensions92 x 110 x 59mm
Weight850 grams (Calibrator head only)
Microprocessor H8/2138
Recommended Recalibration Period 1 Year
Electrical Connections
Battery2 pole miniature round connector
RS2328 pole miniature round connector
Pressure MediaNon-corrosive gases
(for other media, contact SI)
Pressure Connections3/8“BSP Quick-fit.
8mm O/D hose connector
Pressure Switch InputStandard 2mm sockets
Software (optional) The ‘SiCal PRO’ software will present
downloaded data in various graphical
forms such as gauges or a scrolling bar
& remotely control the PC6-PRO via
the RS232 cable linked to a PC. The
downloaded data can be stored in a
variety of file types compatible with
most analysis database and word
processing programs.
Cal. procedures can be uploaded to
the PC6-PRO.
System requirements: 486 with maths coprocessor.
Windows 95 or higher is required.
®
knots
Pressure to airspeed conversion for the range 0 to 600 knots using
‘British Standard 2G 199 :1984’
Issue 3 Page iv
DESCRIPTION
1.0 Introduction
The unit is a microprocessor controlled, precision instrument powered by an internal 6V rechargeable battery
pack. It is portable and capable of accurate pressure measurement. This section describes the equipment
from an external viewpoint, allowing the user to become familiar with the various controls and connections
provided.
1.1 General
The PC6 is housed in a three part anodised aluminium case with a liquid crystal display unit at the front and a
six button membrane keyboard. The main body contains the circuitry, connections, internal transducer and
battery pack.
1.2 Keypad
The Keypad is a non-tactile membrane keyboard with six buttons. The keyboard layout is shown below.
Note: An audible bleep accompanies
every key operation.
MENU
PRINT
LOG
ON/OFF
ENTER
ZERO
Issue 3 Page 1
1.3 Liquid Crystal Display (LCD)
The LCD is a 16 character x 2 line alphanumeric LED
backlit display which is capable of displaying special
characters.
Pressure reading Unit of measurement
Special
Symbols
1.4.1 A 3/8“BSP ‘Quick-fit’ coupling to
accommodate the hand pump.
8mm O/D hose fitting on pump to connect
to item under test.
1.4.2An 8 way circular miniature
connector is used for communication with
RS232 standard communication
protocols/equipment. The user software
‘SiCalPro’ (optional) can be used to
remotely monitor or download data from
the PC6 via this connector.
(Optional RS232 cable - Part No. 01-0625)
COUPLING
RS232
CHARGER
CHARGER
FunctionFunction Value
1.4.3The 2 way circular miniature
connector is used for the battery charger
(provided).
1.4 Connection Panel (See Page 3, Fig 2)
The connection panel is located at the top of the case and
provides input / output connections as detailed in Fig.2
Issue 3 Page 2
ARRANGEMENT OF PC6-AV
Front View: LCD & keypad
Keypad
See Page 1
MENU
Fig 1
Display.
PRINT
LOG
PC6-A V
ENTER
ZERO
ON/OFF
‘Quick-Fit’ Coupling.
Top View: connection panel
Fig 2
BATTERY
Battery Charger Input Socket
CHARGER
++
--
See Page 7
RS232 Communication
Socket See Page 7
CHARGERRS232
GND
GND Common Ground Socket
SWITCH Pressure Switch Input.
SWITCH
Issue 3 Page 3
PRESSURE DISPLAY - Allows the user to operate the PC6 for pressure measurements. (Display Functions)
FUNCTIONS (MENU 1)
Menu 1
Issue 3 Page 4
UNITSSelection of pressure unit.
ALT (ft)Altitude in feet
ALT (m)Altitude in metres
QFFAirfield barometric pressure at sea level.
MAXDisplays the maximum pressure measured since the last reset.
MINDisplays the minimum pressure measured since the last reset.
%Displays the pressure as a percentage between user pre-set high and low alarm values.
TAREDisplays the pressure at the time of tare.
SwitchIndicates the status of the pressure switch (OPEN/CLOSED)
LeakAllows the PC6 to measure pressure changes over time.
Temp °CAllows the user to monitor the temperature around the selected pressure transducer in pressure display mode.
Date & TimeAllows the user to monitor the date & time of the on board real time clock in pressure display mode.
FileAllows the user to view or manipulate a file previously stored in the filing system.
ExitReturns to Pressure Display mode. (SHORTCUT: To abort any menu level, simply press the MENU key).
mbarmillibar
inHgInches of Mercury (at 4°C)
knotsknots (for absolute units see item 2.12, page 10)
kPakiloPascals
MpaMega paskals
psipound force per square inch
kg/cm2Kilogrammes force per square centimeteratmatmospheres
inH Oinches of Water (at 4°C)
2
mH Ometers of water (at 4°C)
2
mmH Omillimeters of water (at 4°C)
2
barbar
mmHgmm of Mercury (at 0°C)
Unit1First user defined unit
Unit2second user defined unit
ExitReturns to menu 1
StartStarts the leak test.
Set-TimeSets the leak test time.
ExitReverts back to pressure display mode.
ViewAllows the user to see stored file.
ExportOutputs a stored file.
ImportImports a file from Sicalpro
DeleteDeletes a stored file.
ExitReverts back to pressure display mode.
Please see 3.6 page 23
}
Refer to item 2.12, page 10
}
when using ‘knots’.
FUNCTIONS (MENU 2)
SETTING MENU - To set user specific functions. (Set Functions)
Menu 2
ALTConfigure altitude settings
QFFConfigure QFF mode
HighAllows the user to set a High Pressure Alarm Limit.
LowAllows the user to set a Low Pressure Alarm Limit.
Display LightSwitches ON or OFF the LED back light.
ResolutionSelects high, normal or low resolution.
EventSets up the event status for RS232 output and for logging functions.
LogAllows the user to setup, amend and view files for logging.
RS2332Settings for RS232 communications.
Date/TimeSets up Date & Time parameters
LanguageAllows user to change language
Issue 3 Page 5
DatumUser defined setting
ViewAllows user to view current datum
SetAllows user to define current datum
ISADisplays ‘International Standard Pressure’.
ExitReverts back to pressure display mode.
HeightSets Local height
TempSets local temperature
ExitReverts back to pressure display mode.
(by using the increase/decrease facility above which an alarm sounds.)
(by using the increase/decrease facility below which an alarm sounds.)
KeySets key driven output.
TimedSets timed output defined by the user.
ExitReverts back to pressure display mode.
LogTo select a log file and start logging.
ViewTo look at a file.
DeleteDeletes a file.
StatusTo enable or disable logging.
ExportTo export logged files.
ImportTo import files from a PC. (see ‘SiCalpro’ software instructions for exporting files to the PC6)
StatusTo enable RS232 communication.
Baud-rateTo select the baud rate.
Stop-bitsTo select the number of stop bits.
ExitReverts back to pressure display mode.
SetSets the date & time.
ViewTo look at date & time.
ExitReverts back to pressure display mode
ZeroWill reset pressure reading to Zero. ( This will remove Zero offset permanently / NOT available for
PortSelects current pressure modules (P1,P2,DPM)
Power_OffAllows the user to set Power_Off time or to switch the function on or off.
KeySwitches the auto-power function off.
TimedAllows the user to set the auto-power off time in minutes.
ExitReverts back to Pressure Display.
ExitReverts back to pressure display mode.
absolute units ).
FUNCTIONS (MENU 3)
CAL MENU
Menu 3
SPANAllows user to set span.
CONTINUEStarts span calibration procedure.
EXITReturns to Cal Menu.
HISTORYAllows user to see overload and zero-span history.
OVERLOADDisplays period of time over which overload occurred.
ZERO-SPANDisplays date last calibrated, last span set, range and overload value.
PC6 S/NoDisplays the unit’s
PM S/NoDisplays the serial number of the currently selected pressure module.
EXITReturns to Cal Menu.
LanguageAllows user to download different languages.
UNITS
ViewDisplays the two current user-defined units.
AlterAllows user to modify the conversion factor and/or text for the two user-defined units.
ExitReturns to Cal Menu
EXITReturns to Pressure Display.
Issue 3 Page 6
serial number.
OPERATING
INSTRUCTIONS
1.5 Switch Test Activate ‘Switch’ function in menu 1. The
switching pressure of a pressure switch can now be
monitored by connecting the contacts of the pressure
switch between the INPUT 'GND' and 'SWITCH' sockets on the
connection panel and pressurizing the pressure switch.
1.6 RS232
If the RS232 facility is to be used then connections to the 8way socket must be made to the specifications given in the
table below. Alternatively an RS232 communication cable
can be purchased from SI suitable for most RS232
applications as shown below.
To RS232Standard 9-way
socket on PC6'D'type female
Cable Part No: 01-0625
connector
RS232 Connections Table
PIN No.
Note: 1. Pin 6 and pin 8 should not be used.
INPUT/OUTPUT
1
2
3
4
5
6
7
8
Output
Output
Input
Output
Input
Output
Common
Input
Data Terminal Ready (DTR)
SIGNAL
Transmit Data (TxD)
Receive Data (RxD)
Request To Send (RTS)
Clear To Send (CTS)
Do not use
Ground
Do not use
STATE
Held High
Active High
be obtained as ‘single shot' or ‘timed' as follows:
Single Shot - This output is always available in Display mode
when RS232 status & Log status are OFF. The output is
obtained each time the key is pressed (provided any
PRINT
LOG
previous output is complete).
Warning: The PC6-PRO must be switched off prior to
connecting or disconnecting the RS232 cable.
Timed - This output is available in Display mode when RS232
status is ON & Log status is OFF. The output cycle is initiated
by pressing the key. Pressing the key cancels the
PRINT
LOG
MENU
output. Once initiated, the output is repeated at the
selected time interval (see ‘Event' function, page 26 ) until
MENU
the key is pressed.
1.6.1 Charger The internal battery pack may be recharged
(when indicated by the battery low message) by plugging the
charger (supplied) into the 'CHARGER' socket of the PC6.
CAUTION: When recharging internal batteries, only the
charging unit supplied with the PC6 should be used.
RS232 Output
Connect the PC6 to a printer or computer using a suitable
cable (not supplied) as detailed above and set the
parameters as detailed in Para. 2.9 & 3.1. The output can now
Issue 3 Page 7
1.7 Messages & Parameters
The PC6 registers pressure input at switch on after the initial
start-up message. The pressure reading is displayed in the top
left hand corner of the LCD (Fig.3 Page 2). Pressure values are
monitored, alarm values are compared, alarm warnings and
other information messages displayed until the PC6 is switched
off.
Memory Errors:
Any read / write errors to memory detected at switch on will be reported
as: Memory Error ‘Error No.’
Error Numbers:-
0 - Onboard eeprom; 8 - RTC; 9 - 2nd Onboard
eeprom.
Errors with Pressure Modules will be indicated by the message: "No P1
(or P2 or DPM) Module" preceeded by "PM EEPROM ERROR" at power
on.
1.7.1 When switched on, the PC6 registers the same state as
when last switched off. The display mode (Operating/Set), units
of measurement, function and parameter settings, alarm limits
and RS232 output control, logged parameters are all retained
at switch off, with the exception of the following conditions :
1.7.2 A battery low state occurring prior to the switch off.
When switched on, the PC6 registers the latest retained set of
parameters.
1.7.3 Any TARE value set during use is not retained and
therefore should be set, if required, each time the PC6 is
switched on.
1.7.4 Maximum and Minimum values are not retained.
Current values reflect pressure monitored from the start of the
pressure input.
1.7.5 If the PC6 is switched off during a LEAK test then the test
will be void. When switched on again the PC6 will start up in
LEAK test mode.
1.7.6 Switch off When the key is pressed the 'switch
ON/OFF
off' message is displayed for five seconds accompanied by
an audible bleep. Normal operation may be resumed by
pressing any key during switch off.
1.7.7 Auto Switch off The PC6-PRO will automatically turn itself of
1.7.9 Low Battery Detect (Bleep rate 1 Hz). ‘Low Battery'
occurs when internal battery pack drops below 5.5V. Message
flashes for 4 seconds, after a further 30 seconds, low battery
detection is re-enabled.
1.7.10 Pressure Switch State Change (Bleep rate 2 Hz)
Occurs in pressure mode with the pressure switch state display being
selected. When the connected pressure switch changes state, the
pressure value (upper line) is frozen and the pressure switch state (lower
line) display is flashed at 1 Hz unless a log file is open. Normal display
update resumes when the key is pressed.
ENTER
ZERO
Issue 3 Page 8
1.7.11 Printer Busy (Bleep rate 1 Hz)the various pressure alarm conditions as given below:
If the receiving device is not ready for input (e.g. device not
connected or handshake LOW), 10 seconds after starting an
output cycle (single shot or timed output) the message 'Printer
Busy' is flashed on the display, together with an audible
warning. If the device does not accept input within the next 5
seconds then the output cycle is canceled and output is
stopped until the key is pressed again.
PRINT
LOG
1.7.16 Display Symbols
* overload pressure level exceeded
(pressure warnings, 1.7.8 & 1.7.12)
> pressure exceeds user set high limit
< pressure below user set low limit
“ ” a space if no alarms apply.
1.7.12 Outside User Set Alarm Values (Bleep rate 2 Hz)
Occurs when measured pressure is lower than the user set Low
Log Log Status ON RS232 Output
File openStatus ON
DPM
Status ON
alarm value or greater than the user set High alarm value and
the ’outside limits’ message is flashed. Indication ceases when
pressure is equal to either alarm value or between the values.
1.7.13 Display Hold (Bleep rate 2 Hz)
Occurs in pressure mode. If the key is pressed once (less
ENTER
ZERO
than 1 second) the pressure value (upper line) is frozen and the
lower line is flashed with the ‘Display Hold’ message at 1 Hz.
Normal display update resumes when any top row key is
Top line symbols
TimedKeyed log/output
Log/output
Pressure
Port 1
selected
Note: If two (or more) conditions occur which require a
message display, the highest priority condition in the above list
will be displayed. The sequence of messages given above set
the priority except 'Switch Off' which comes last.
pressed.
1.7.17 Alt (height) warning
1.7.14 RS232 Output Format The output format is as follows:
LF
An “Out of Range” message is displayed if the height is
exceeds 105,000 ft or is less than -3000 ft (32004m, -914.4m)
Time & date 23:13:30 220997 +LF
display top line (16 characters ) + LF
display lower line (16 characters ) + LF
alarm flag (1 character ) + LF
1.7.18 Knots (limits)
An “Outside limits” message is displayed if the reading exceeds
600 knots.
Null terminator ( 0 )
1.7.15 Alarm Flags A single character is output to indicate
Issue 3 Page 9
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