Crowcon Cardinal M07231 User manual

Cardinal
Multichannel Personal Gas Monitor
Instruction Manual
Issue No. 1 Stock No. M07231

Quick Operating Guide
Switch on: Press button
Normal condition: Intermittent green LED flash and
blip
Alarm condition: Fast flashing red LEDs and
sounder
Alarm reset: Press button
Activate backlight: Press button
Switch instrument off: Press and hold button - instrument
will display 5 second countdown
then turn off automatically.
Use of Manual Aspirator: With the aspirator assembly
attached a minimum of 10 pumps
with the hand bulb are required
Instruments fitted with internal pump
Switching pump on and off: Pump is activated and de-activated
by fitting or removing the flow
adaptor.
NOTE: Do not connect a pressurized gas cylinder with the
pump running.
2

Contents
1. UNPACKING ............................................................................................... 5
2. INTRODUCTION ........................................................................................ 6
3. SPECIFICATION ........................................................................................ 7
4. OPERATION ............................................................................................... 9
4.1 SWITCH-ON SEQUENCE ...............................................................................9
4.2 RUN MODE ...............................................................................................10
4.3 DISPLAY SYMBOL GUIDE ......................................................................... 11
4.4 DISPLAY OPTIONS .................................................................................... 12
4.5 DATALOGGING .......................................................................................... 12
5. BATTERY PACK ....................................................................................... 14
5.1 CHANGING THE BATTERY PACK .............................................................. 14
5.2 RECHARGING ............................................................................................ 15
6. ALARM TYPES ......................................................................................... 16
7. FIXING ACCESSORIES .......................................................................... 17
8. USING PUMPED VERSIONS OR ASPIRATORS ................................ 18
8.1 DIFFUSION INSTRUMENTS .........................................................................18
8.2 PUMPED INSTRUMENTS .............................................................................19
8.3 CALIBRATION METHOD ............................................................................ 20
9. ROUTINE CHECKING ................................................................................ 21
9.1 GENERAL .................................................................................................. 21
9.2 SENSOR FILTER ........................................................................................ 21
9.3 BUMP TESTING AND CALIBRATION ...........................................................21
10. PC INTERFACE AND SOFTWARE ....................................................... 23
11. SENSOR REPLACEMENT ..................................................................... 24
3

12. SENSOR LIMITATIONS ......................................................................... 26
13. TROUBLESHOOTING GUIDE .............................................................. 27
13.1 STATUS MESSAGES: .................................................................................. 27
13.2 SERVICE: ...................................................................................................28
14. ACCESSORIES AND SPARE PARTS .................................................... 29
14.1 ACCESSORY LIST ..................................................................................... 29
14.2 SPAR E PARTS LIST ................................................................................... 29
4

1. Unpacking
Each Cardinal is supplied in one or two boxes, depending on which
options and accessories have been ordered. Each box has a label
detailing the contents of the box. Should the content not agree with
the label, please contact Crowcon immediately and have ready the
serial number of the instrument in question. The serial number can
be found at the bottom of the label on the rear of the main
instrument. The battery pack has it own code number found on the
main battery pack label.
Note: When checking the contents of boxes, remove all items
from the foam packing and remove the foam. This will expose
a false bottom which can be opened by inserting a finger in
the hole provided and hinging up. In most boxes, further
contents will be found in this lower compartment.
The rechargeable batteries can occasionally discharge during
transit. See Switch-on Sequence (p9) for details of the battery
level indicator.
5

2. Introduction
The Crowcon Cardinal is a portable gas detector, which can
monitor up to four gases simultaneously. It is designed to be carried
or worn by individuals working in hazardous environments such as
confined spaces, and will give a loud audible and bright visual
alarm warning when preset concentrations of gas are detected. It
also internally logs data, which can be accessed by connecting the
unit to a PC.
Detailed mechanical design features have resulted in an easy to
service instrument with sealing to IP66.
The user interface has been designed for simple ‘one button
operation’. The shape of the instrument has been designed to fit
comfortably against the body and pose the least restriction on
movement. It can fit in a pocket, on a belt or a chest harness.
The detachable battery pack can be replaced in a hazardous zone
for round the clock operation. The rechargeable packs utilize
environmentally friendly nickel metal hydride batteries with a life of
up to 1000 charge/discharge cycles. These will power an
instrument with one flammable sensor and three electrochemical
sensors for up to 141/2hours.
The sensor module can be detached and replaced for easy field
maintenance.
6

3. Specification
Weight 1.1lbs
Dimensions 6.1” x 4” x 2”
Typical measuring ranges 0-100% LEL combustible gas, 0-25%
volume oxygen, 0-50ppm hydrogen
sulfide, 0-500ppm carbon monoxide.
Typical alarm levels (3 per 20%LEL and 40%LEL, 17%, 19% and
channel plus TWA alarms 23% oxygen, 5ppm and 10ppm
for toxic channels) hydrogen sulfide, 30ppm and 100ppm
carbon monoxide instantaneous
alarms and/or TWA alarms (STEL
and LTEL)
Response times (T90)Methane 20 seconds, oxygen 10
seconds, typical toxic gas 20 seconds.
Visual alarm indicators Ultra bright flashing red LED pair in
ALARM mode. Slow flashing green
LED in NORMAL mode.
Audible alarms Programmable from six different tones,
85dBA at 3 feet. Intermittent sound for
discharged battery. Confidence blip
(selectable).
Display Custom 7 segment high contrast LCD.
8mm character height for gas
readings. Symbols for low battery,
TWA alarm, blocked pump. Bright
backlight.
Operating temperature -14°F to 122°F (-20°C to 50°C )
range
Humidity 0-95% RH, non-condensing for the
instrument typically 10-90% RH for
toxic sensors.
7

Expected sensor life Catalytic 5 years, toxic gas 3 years,
oxygen 2 years.
Detachable battery pack 1.1Ah nickel metal hydride
rechargeable: typical life 14.5 hours
diffusion mode, 12 hours pumped.
Aspirator/electric pump Manual bulb type with 6ft of hose,
non-absorbent, hydrocarbon resistant.
Internal electric pump option with auto
on/off.
Certification Class 1, Division 1, Groups A, B, C
and D.
USA & Canada UL 913, CSA 22.2
RF Immunity Tested to IEC801-3 and meets
EN50082-1
RF Radiation Tested to EN55022 Class B and meets
EN50081-1
Battery chargin Dual rate charger for instrument or
detached battery pack. Fast charge in
6 hours, trickle charge will not damage
batteries. Input 100-250 VAC or 12-30
VDC.
8

4. Operation
4.1 Switch-on Sequence
NOTE: Before switching the detector on ensure you are in
clean air.
To switch on the instrument, press the button.
The instrument tests all LCD segments, red alarm LEDs and
sounder for 5 seconds, you can press the button to silence the
sounder at this point. It then displays the software version and
battery level before entering the Warm-up mode. During Warm-up
the display counts down from 40 seconds. When the count
reaches 0 the detector will enter the Run mode. An indicator bar
above the zero label indicates auto zero will take place on
completion of warm-up.
When the warm up is complete the Cardinal will Autozero, setting
the flammable and toxic sensors to read zero, and the oxygen
sensor to read 20.9%. It is therefore very important that the
instrument is in a true fresh air environment prior to turning it on. If
there is any doubt as to whether you are in fresh air do not
start up the instrument; go to a location where the air can be
guaranteed fresh.
There is an option in the PC software to make the Autozero
function user confirmable by a button press during the warm up. In
this case the display will flash ‘ZEr’ alternately with the time count,
and if the button is pressed during the countdown the indicator bar
for zero will be activated showing Autozero has been selected.
NOTE: For rechargeable battery packs, a reading of below
9

4.5V indicates that the batteries require charging. For the first
4-5 recharge/discharge cycles, rechargeable batteries cannot
hold a full charge. Therefore, the operation time is around 71/2
hours for the first few charges.
Once in the Run mode, the green ‘confidence’ LED will flash and
the speaker bleeps every few seconds to reassure users that the
instrument is working and the environment is safe. It is now ready
to be used. Note the audible bleep may be turned off using the
Portables PC software program (see the handbook supplied with
Portables PC for further details).
The instrument may display a calibration or service message after
the start up routine. Refer to Section 13 of this manual for the
details of these messages and correct response to them.
To switch the unit off press and hold the button. The unit will count
down 5 seconds, then display ‘OFF’ and turn itself off
4.2 Run Mode
The instrument displays each gas reading in turn for several
seconds, cycling back to the first. The channel displayed is
indicated by a bar on the LCD under the gas name on the label.
The display may be blanked by a selection in the Portables PC
configuration (see the handbook supplied with Portables PC for
further details).
Figure 1 - Typical Run display
10