Oldham OX 2000 User guide

O
OX XY YG GE EN NO OM ME ET TE ER R A AN ND D T TO OX XI IM ME ET TE ER R
U
US SE E A AN ND D M MA AI IN NT TE EN NA AN NC CE E

3
O
OL LD DH HA AM M S SA A
GAS AND FLAME DETECTION
STACK GAS AND DUST MONITORING
We thank you for choosing an OLDHAM SA instrument.
We have taken every step to ensure that this equipment continues to give
you complete satisfaction.
Please read the instruction manual carefully before using the instrument.

4
L
LI IM MI IT TS S O OF F R RE ES SP PO ON NS SI IB BI IL LI IT TY Y
* OLDHAM SA hereby rejects any and all responsibility with regard to any person for material
damage, bodily injury or death resulting in whole or in part from the inappropriate use,
installation or storage of its equipment not conforming to the instructions and to warnings and/or
not conforming to standards and regulations in force.
* OLDHAM SA does not allow or authorize any company, person or legal entity to assume such
responsibility on the part of OLDHAM SA, even if involved in the sale of the products of
OLDHAM SA.
* OLDHAM SA shall not be liable for any direct or indirect damage, or any direct or indirect
legally awarded damages resulting from the sale and use of any of its products, UNLESS
THOSE PRODUCTS WERE SPECIFIED AND CHOSEN BY OLDHAM SA FOR THE
USE MADE OF THEM.
O
OW WN NE ER RS SH HI IP P C CL LA AU US SE ES S
* Sketches, drawings, specifications and data included herein contain confidential information
which is the property of OLDHAM SA.
* These information shall not be, in part or in whole, physically, electronically or in any other form
whatsoever, reproduced, copied, divulged, translated, used as a basis for the manufacture or sale
of OLDHAM SA equipment or used for any other reason without the prior approval of
OLDHAM SA.
W
WA AR RN NI IN NG GS S
*This document is not a contractually binding document, OLDHAM SA reserves the right
to make any changes, without notice, to the technical characteristics of its equipment in
order to improve performance levels, in the interest of its customers.
*CAREFULLY READ THE INSTRUCTIONS BEFORE ALL FIRST USE:
This instruction manual must be read by any person who is, or will be, responsible for the
use, maintenance or repair of this equipment.
*This equipment will conform with the specified performance levels only if it is used,
maintained and repaired in accordance with the directives of OLDHAM SA and by
OLDHAM SA personnel or personnel authorized by OLDHAM SA.

5
F
FI IG GU UR RE E 1 1
General view
1Protective filter for module
2clip
3Protective cover for module
4Back lighted liquid cristal display
5Colour ring mentionning type of module
6Visual indicator
7Buzzer
(audible alarm)
8Mini and maxi detected at the last utilisation
Current batteries voltage
9Tactile keys
1
3
5
7
2
6
89
4

6
F
FI IG GU UR RE E 2 2
Inside view
Rep 1
Rep 1
Rep 2

7
F
FI IG GU UR RE E 3 3
TX2000 (+) "HBCO"Version
1Te shape sampling device (plastical)
2Interchangeable tip (pasteboard)
3CELL CAP (NOZZLE)SPECIFIC TO COHB
4TX 2000 (+) "CO"
2
3
4
1

8
T
TA AB BL LE E O OF F C CO ON NT TE EN NT TS S
I. PRESENTATION....................................................................................................................9
1. POWER SUPPLY -OX/TX2000 VERSION.......................................................................9
1.1. Fitting or replacement of dry batteries:......................................................................10
2. POWER SUPPLY –OX/TX2000+ VERSION..................................................................10
2.1. Replacement of dry batteries......................................................................................10
2.2. Reinitialization of the dry batteries "controller".........................................................11
3. MEASUREMENT SENSOR (toxic or oxygen) .................................................................11
3.1. Presentation................................................................................................................11
3.2. Fitting or replacement.................................................................................................11
4. CARRIAGE OF THE TX2000(+) / OX 2000(+)................................................................12
II. USE ........................................................................................................................................12
1. OPERATING THE INSTRUMENT.................................................................................12
2. DATA GIVEN BY THE DISPLAY ...................................................................................13
3. SWITCHING ON.................................................................................................................13
4. SWITCHING OFF...............................................................................................................14
5. ILLUMINATION.................................................................................................................15
6. SCROLLING THE PARAMETERS..................................................................................15
6.1. Manual acknowlegment of « MINI » et « MAXI »....................................................16
7. THE ALARMS .....................................................................................................................17
8. CLEARING THE ALARMS...............................................................................................20
III. MAINTENANCE AND SERVICING ..................................................................................21
1. MAINTENANCE .................................................................................................................21
2. PROGRAMMING................................................................................................................22
3. CALIBRATION ...................................................................................................................23
3.1. Calibration procedure.................................................................................................23
3.2. Adjusting the zero in clean air (only for toximeter version) ......................................23
3.3. Adjusting the sensitivity .............................................................................................24
4. SENSOR REPLACEMENT................................................................................................26
IV. ACCESSORIES.....................................................................................................................26
V. SPARE PARTS LIST ............................................................................................................27
VI. LIST OF THE DIFFERENTS SENSORS ..........................................................................28
VII. TECHNICAL DATA .............................................................................................................29
1. GAS DETECTOR ................................................................................................................29
2. SENSORS..............................................................................................................................32
2.1. Interferents :................................................................................................................33
VIII. "HBCO" VERSION .........................................................................................................34
1. With direct reading in "ppm CO" or "% COHB"...........................................................34
2. Preparation of the patient....................................................................................................34

9
I
I. . P PR RE ES SE EN NT TA AT TI IO ON N. .
See figure 1 at the beginning of this manual
he TX/OX2000(+)is a stand-alone, “pocket ” oxygenometer or toximeter
intended for the (continuous) detection of toxic or oxygen gases or vapours.
The TX/OX2000(+)is equipped with a plug-in sensor which can be accessed
after unscrewing the sensor cap on the top of the instrument.
The TX/OX2000(+)displays the gas concentrations on a liquid crystal display fitted
with an illumination device. A special version also exists not to display the
measurement but the messages GO or GAS.
In the event of an alarm or anomalies the instrument activates an audible and visible
alarm.
An periodic audible "BEEP" (factory-programmed intervals : 120 seconds by default)
shows that the instrument is working properly or indicates that the TX2000(+)has
been switched off deliberately. This “ beep ” can be disabled during the initialization
of this device by the manufacturer.
1
1. . P PO OW WE ER R S SU UP PP PL LY Y - - O OX X/ /T TX X2 20 00 00 0 V VE ER RS SI IO ON N
It is provided by :
3 ALKALINE DRY BATTERIES 1,5 V
DURACELL MN9100
ENERGIZER (LR1) E90 ALKALINE
PANASONIC (LR1) AM5EU ALKALINE
Battery life = 1300 hours
Dry or rechargeable batteries are not :
-delivered with the instrument
-interchangeable in hazardous area
IMPORTANT: The instrument is certified for use in group I and II explosive
atmospheres and only, when it is equipped with dry batteries of a type
recommended by the manufacturer.
T

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1.1. Fitting or replacement of dry batteries:
ØSee figure 2 at the beginning of this manual
-Remove the rear protective caps of the TX/OX 2000 after having the
four screws undone (rep 1)
-Fit the dry batteries into the compartment tought for this purpose (rep 2).
Make sure that the polarity is correct as indicated on the label of the dry
batteries box.
-Screw the rear caps.
2
2. . P PO OW WE ER R S SU UP PP PL LY Y – – O OX X/ /T TX X2 20 00 00 0+ + V VE ER RS SI IO ON N
It is provided by :
-A pack of 3V6 lithium dry batteries which gives it an autonomy while 1
year.
-This pack will be completely and easily removed when the dry batteries
are discharged.
2.1. Replacement of dry batteries
ØSee figure 2 at the beginning of this manual
When the dry batteries are discharged, a pictogram "dry battery" appears on
the LCD.
Then it is necessary to replace the "dry batteries pack" :
-Switch off the TX/OX2000+
-Remove the rear protective caps of the TX/OX2000+ after having the
four screws undone (rep1)
-Replace the worn dry batteries pack by a new pack
-Screw the rear caps.

11
2.2. Reinitialization of the dry batteries "controller"
•to do at every replacement of dry batteries
•TX/OX 2000+ switch off
IMPORTANT: The instrument is certified for use in group I and II explosive
atmospheres and only, when it is equipped with the dry batteries pack of a type
recommended by OLDHAM.
3
3. . M ME EA AS SU UR RE EM ME EN NT T S SE EN NS SO OR R ( (t to ox xi ic c o or r o ox xy yg ge en n) )
3.1. Presentation
Being a vital element of the gas detector, the sensor of the TX/OX2000(+)must be
treated with care. Mechanical impacts, splashing with water etc… may impair the
quality of the measurement or even, in extreme cases, destroy the sensors.
A water-repellent and anti-dust filter protects the “head” of the sensor.
Each sensor of type electrochemical can detect one toxic or oxygen gas (see chapter
VI : List of differents sensors).
3.2. Fitting or replacement
The sensor (fig1-rep1) can be plugged in and is accessible once the rear and the
protective caps have been slightly unscrewed (fig.1.-rep3).
and Press 30 seconds on those 2 keys
bat -Release the keys when bat appears
-bat is still displaying during 5 seconds
End of the réinitialization after 5 seconds
ENTER

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IMPORTANT : This work is reserved for authorized and qualified personnel
since it could possibly jeopardize the safety of detection.
4
4. . C CA AR RR RI IA AG GE E O OF F T TH HE E T TX X2 20 00 00 0( (+ +) ) / / O OX X 2 20 00 00 0( (+ +) )
•Clip (fig 1.rep2)
The user can get on with his work while leaving the instrument to monitor the
surrounding atmosphere: the TX/OX2000(+)is attached to his clothing using the clip
provided for the purpose
Attention : in order to be able to take readings correctly, the sensor should never
be obstructed.
I
II I. . U US SE E
1
1. . O OP PE ER RA AT TI IN NG G T TH HE E I IN NS ST TR RU UM ME EN NT T
This is done using the touch areas located on the front panel of the TX/OX2000(+)
(fig1. rep9).
•Switching the instrument on or off
•Enter
•Illuminating the liquid crystal display
•Scrolling the parameters and menus
•“down ” key
•Clearance of the gas alarm
•“up ” key
•"yes" or "no" for confirmation.
•use of the programming and calibration menus and
•Reinitialization of the dry batteries "controller"
Comment: an interval1of 3 minutes minimum and 7 minutes maximum is allowed
between two depressions of the keys, otherwise the instrument will "restart" in
"normal" mode
1Configuration of the interval depends on detected gas
ENTER
ENTER

13
2
2. . D DA AT TA A G GI IV VE EN N B BY Y T TH HE E D DI IS SP PL LA AY Y ( (f fi ig g1 1- -r re ep p4 4) )
The liquid Crystal display allows messages to be read clearly:
•3 digits 1/2 for displaying the measurement
•Equipped with back light by light-emitting diodes.
•4 pictograms supplementing the audible and visual alarms relating to the
exceeding of thresholds, battery faults, maintenance mode.
3
3. . S SW WI IT TC CH HI IN NG G O ON N
The TX/OX2000(+)is switched on by pressing momentarily on the following key
A regular audible “ beep ” signals that the instrument is operating correctly.
The interval between the "beeps" is factory-programmable, and the "beeps" can be
disabled.
The following appear in succession on the display, accompanied by a continuous
visual and audible signal of 4 seconds :
Test display
r1.6 Software version used
Year of manufacturing
Day of manufacturing, in the year
Serial number
Display of 1st adjustable alarm threshold in toxic gas, or of «low »
adjustable gas threshold in oxygen..
Display of 2
nd fixed alarm threshold in toxic gas, or of «high »
adjustable gas threshold in oxygen..
Display of the alarm threshold STEL (15 mn) fixed
Display of the alarm threshold TWA (8 hours) fixed
_ _ _
_ _ _
004
001
0
ENTER

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"Average on 8 hours" (TWA)
Alarm threshold on 8 hours
Average on 15 mn (STEL)
Alarm threshold on 15 mn
Display of test period (stabilisation) (alternatively “tst” and remaining
time).
Display of measurement or (depends on version), after
stabilisation time.
Note :
The instrument is initialised to detect only one type of gas (toxic or oxygen).
The "detected" gas is programmed in the factory and engraved on a label [sticked on
TX/OX2000(+)housing].
4
4. . S SW WI IT TC CH HI IN NG G O OF FF F1
1
Keep the "OFF" key pressed
The display then indicates the following countdown:
and goes out (with confirmation beep).
Then release the key.
1We can remove only in factory the « OFF » function if you need (special version).
All parameter existing when the instrument operates will be when dry batteries are replacing
-2-
-1-
-0-
tSt
bon
or
M8H
5
M15
IO
000 go
ENTER

15
5
5. . I IL LL LU UM MI IN NA AT TI IO ON N
In order to read the measurement in dark locations it is possible to illuminate the
display by momentarily pressing the following key :
2 red light-emitting diodes placed on either side of the display provide this
illumination for 10 seconds (as standard).
6
6. . S SC CR RO OL LL LI IN NG G T TH HE E P PA AR RA AM ME ET TE ER RS S
By pressing momentarily and successively on the following key
In first press on key, display is back-lighed then :
The lowest measurement detected since the instrument was switched on
(refreshed each time the instrument is switched back on)
Cyclic display of measurement if no new depression appears
_ _ _ _ _ _ _ _ _ _ _
The hightest measurement detected since the instrument was switched on
(refreshed each time the instrument is switched back on)
Cyclic display of measurement if no new depression appears
_ _ _ _ _ _ _ _ _ _ _
NB : these measurement displays and do not be available in
«detector » special version or .
_ _ _ _ _ _ _ _ _ _ _
Averaged alarm on 15 mn : STEL
"STEL" current value permanently1calculated (sample)
1This value is put back to zero at every start of the device.
LO

HI

M15
100
LO HI
go GAS

16
Averaged alarm on 8 hours : TWA
"TWA" current value permanently calculated
_ _ _ _ _ _ _ _ _ _ _
Test of dry batteries
Segments indicating dry batteries or batteries operating
(the number of segments depends on remaining of autonomy)
_ _ _ _ _ Cyclic display_ _ _ __ _
Return to display of the current measurement in ppm of the toxic
measurement detected or in % oxygen
6.1. Manual acknowlegment of « MINI » et « MAXI »
It is possible to reinitialize (up-date) manually in normal operating (measurement
display) the lowest measurement and the highest measurement :
-press simultaneously on the 2 following keys and
-release the keys…
M8H
10
bAt

I I I I
LO HI
Registering of min/max to the actual value
Confirmation beep for reinitialization

17
7
7. . T TH HE E A AL LA AR RM MS S
Visual:
Red indicator clearly visible on 4 sides and located at the top of the instrument (see
figure 1 rep 6).
Audible:
Loud buzzer located above the front panel of the instrument (see figure 1 rep.7).
GAS:
The “gas ” audible and visual alarm is triggered when at least one of the two
preprogrammed thresholds is exceeded (instantaneous or STEL/TWA for the
taximeter version)
* Toximeter version1:
•The instantaneous adjustable threshold2: can be altered as desired by the
user with the help of the maintenance / programming mode, and identified
by the following pictogram
•The instantaneous fixed threshold3: programmed by OLDHAM. It is
identified by the following pictogram
•The STEL threshold3: Programmed by OLDHAM. Display of M15
alternatively with the value
•The TWA threshold3: Programmed by OLDHAM. Display of M8H
alternatively with the value.
•The STEL/TWA thresholds3: The STEL and TWA thresholds are
programmed by OLDHAM at the reinitialization of the device and cannot be
modified by the user. The thresholds are programmed by default following
the certificated values. It is identified by the pictogram
* Oxygenometer version :
•The “ down ” threshold2: adjustable from 0% oxygen to the "up" threshold
and identified by the following pictogram
•The “ up ” threshold2: adjustable up to 25% oxygen and identified by the
following pictogram
1the instantaneous and STEL/TWAalarms are not available for the range 0-5 % COHB (HBCO)°
2Threshold 1 = 1 beep every 2 seconds
3Threshold 2 = 1 beep each second

18
Table of “ pulsed ” audible and visual alarms
DISPLAY CAUSE REMEDY
GAS (special version) Instantaneous or averaged
threshold exceeded Alarm can be cleared manually 1
XPPM or % O2
Alarm pictogram Instantaneous or averaged threshold exceeded Alarm can be cleared manually
Dry battery pictogram The battery is beginning
to discharge
Audible and visual
alarms can be cleared
Change dry batteries
FAULTS2
The faults can be classed into 2 families:
-Those relating to the sensor (out-of-range, sensor worn out, unsuccessful
calibration etc...).
-Those relating to the instrument itself : worn out dry batteries, OX /
TX2000(+)fault.
1Notes ! In special version, you can obtain an automatic reset of alarm (without manual acknowledgment) and when
measurement leaves alarm. The altering is made possible before shipment (untested by DMT).
2The various faults generates a "continuous" audible and visual alarm.
Note : If several faults are simultaneously present, the display will indicate the sum of the faults
Visual alarm
(red indicator)
Audible alarm
(buzzer)

19
DISPLAY CAUSE REMEDY
BAT
pictogramme
Dry batteries are worn :
the instrument is no
longer usable.
-Switch off the instrument
-Alarm cannot be cleared
-Replace dry batteries pack
OR Measurement range
exceeded -Alarm can be cleared manually
Zero fault : sensor zero
too much shifted to low
or high -Calibrate
Sensibility fault : low
sensitivity
-Recalibrate and if the fault
persists : the sensor must be
replaced.
Worn out sensor fault :
low sensitivity
-alarm cannot be cleared :
-Replace sensor and calibrate
again
Eeprom fault : eeprom
memory is not initialized
-Return the instrument into
factory to be reinitialised.
Measurement too
negative or sensor faulty
-Recalibrate and if the fault
persists : the sensor must be
replaced
Problem of
communication between
micro and eeprom
-Return the instrument into
factory to be repaired
Component fault : T°
detector is faulty -Return the instrument into factory to be repaired
Wrong type of sensor. Alarm cannot be cleared
Connect the correct type of
sensor
Sensor absent -Alarm cannot be cleared : fit
the sensor after switching
off the instrument
(cyclic)
(cyclic)
(cyclic)
(cyclic)
DEF
1
DEF
2
(cyclic)
(cyclic)
DEF
4
(cyclic)
DEF
8
DEF
16
ERR
35 69
DEF
64
(cyclic)
à
DEF
128
DEF
128

20
8
8. . C CL LE EA AR RI IN NG G T TH HE E A AL LA AR RM MS S
* Clearing the instantaneous GAS, STEL and TWA alarms:
by pressing momentarily on the following button
Clearing1the alarm involves cancelling the “pulsed ” audible signal and turning off
the alarm indicator on condition that the user has left the danger area.2
NB : if the audible alarm is cleared while a threshold is still exceeded : the indicator
will continue to flash and the corresponding pictogram will remain "steady".
Otherwise, the indicator will switch off when measurement is under the alarm
threshold.
* Clearing the FAULT alarms:
In the event of a fault it is not possible to clear the “ continuous ” audible and visual
alarms, except in case of over range which can be cleared.
1An option allows to automatically regenerate the buzzer 5 minutes after the acknowledgement if the alarm is still on.
2An option makes possible the automatic acknowledgement of alarms : the alarms automatically acknowledge as soon
as the value gets under the threshold. If this option is requested, the manual acknowledgement is no longer possible
(also the « OVER RANGE ») (untested by DMT).
Clearing button
OR

21
I
II II I. . M MA AI IN NT TE EN NA AN NC CE E A AN ND D S SE ER RV VI IC CI IN NG G
Important
Being a safety instrument , it is necessary to calibrate the TX2000(+)or OX 2000(+)
at least once a year following use
This work is reserved for authorized and qualified personnel since it could possibly
jeopardize the safety of detection.
1
1. . M MA AI IN NT TE EN NA AN NC CE E
A maintenance program, integrated to the instrument allows to modify easily alarm
threshold (s) (programming) and to proceed with prevent calibrations or further to the
change of a cell.
.
Use of the program:
The instrument being under normal operation, press simultaneously, and this during 5
seconds at least, on the following keys:
AND
5 seconds later, the “ key” pictogram appears
-Release the keys
-At this time, the operator has only 5 seconds to reach
the maintenance menus
NO YES
-No action on keys
-Return to normal operation, 5
seconds later -“ key” pictogram is flashing
-You have access to calibration
(CAL) and programming (PrG)
menus
3 depressions on key
èThen proceed with
following characteristics (2)
and (3)
(During this time, measurement is
displaying)
Do you want to
reach the menus ?
ENTER