GHM GREISINGER G 1910 Series User manual

Quick reference guide
G 1910 series
Compact CO2 monitor with alarm
EN

Table of contents
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B-H90.0.0X.DK2-2.1
Table of contents
1 About this documentation......................................................4
1.1 Purpose of the document................................................................4
1.2 Legal notices..................................................................................4
1.3 Further information.........................................................................4
2 Safety.......................................................................................5
2.1 Explanation of safety symbols ........................................................5
2.2 Foreseeable misuse .......................................................................5
2.3 Safety instructions..........................................................................8
2.4 Intended use...................................................................................8
3 The product at a glance..........................................................9
3.1 The G 1910 series..........................................................................9
3.2 Display elements............................................................................9
3.3 Operating elements........................................................................9
3.4 Connections .................................................................................10
4 Measurement Basics.............................................................10
5 Operation and maintenance .................................................11
5.1 Operating and maintenance notices..............................................11
5.2 Battery..........................................................................................11
5.2.1 Charge status display...................................................................11
5.2.2 Charging the batteries ..................................................................11
5.2.3 Rechargeable battery replacement...............................................11
5.3 CO2calibration .............................................................................12
6 Operation...............................................................................15
6.1 Opening the configuration menu...................................................15
6.2 Call-up of the expanded settings menu.........................................17
7 Error and system messages.................................................18
8 Technical data .......................................................................20

Table of contents
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9 Service ...................................................................................24
9.1 Manufacturer................................................................................24

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B-H90.0.0X.DK2-2.1
1 | About this documentation
G 1910 series
1 About this documentation
1.1 Purpose of the document
_
–This document is intended as a quick reference option.
–It does not replace the operating manual.
–For this reason, read the operating manual before operating the product for the
first time.
1.2 Legal notices
This document is entrusted to the recipient for personal use only. Any impermissible
transfer, duplication, translation into other languages or excerpts from this operating
manual are prohibited.
The manufacturer assumes no liability for print errors.
1.3 Further information
_
Software version of the product:
–V1.6 or later
_
Link to the complete operating manual:
_
http://www.greisinger.de
For the exact product name, refer to the type plate on the rear side of the product.

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G 1910 series
Safety | 2
2 Safety
2.1 Explanation of safety symbols
_
DANGER
This symbol warns of imminent danger, which can result in death, severe bodily injury,
or severe property damage in case of non-observance.
_
CAUTION
This symbol warns of potential dangers or harmful situations, which can cause damage
to the device or to the environment in case of non-observance.
_
NOTE
This symbol indicates processes, which can have a direct influence on operation or
can trigger an unforeseen reaction in case of non-observance.
2.2 Foreseeable misuse
_
The fault-free function and operational safety of the product can only be guaranteed if
applicable safety precautions and the device-specific safety instructions for this docu-
ment are observed.
If these notices are disregarded, personal injury or death, as well as property damage
can occur.

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B-H90.0.0X.DK2-2.1
2 | Safety
G 1910 series
_
DANGER
Incorrect area of application!
In order to prevent erratic behaviour of the product, personal injury and property dam-
age, the product must be used exclusively as described in the chapter Description in
the operating manual.
–The product is not suitable for use in explosion-prone areas!
–The product must not be used for diagnostic or other medical purposes on pa-
tients!
–The product is not intended to come into direct contact with food!
–For measurements requiring devices that are subject to authorisation or special
approvals, this product is not a substitute for such products and can only be used
as an aid in preparatory or comparison measurements!
_
DANGER
Danger due to elevated CO2concentration
The product is not suitable for use as personal protective equipment with elevated CO2
levels. However, it can indicate an elevated CO2value. The measured value appears
in the display as a % or ppm value.

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G 1910 series
Safety | 2
G 1910-
02
G 1910-
20
CO2concentra-
tion
Effect
%
ppm
20
Death within a few seconds
10
Loss of consciousness, death, dizzi-
ness, vomiting, headaches, reduced
blood flow to brain
4.0
IDLH - immediate danger to life and
health
3.0
Normal exhalation concentration, ele-
vated breathing and pulse rate
2,0
20,000
1.0
10,000
Possible shortness of breath
0.5
5000
TWA –Maximum for working condi-
tions
0.1 .. 0.2
1000 ..
2000
Recommended maximum value in
public areas
0.04
400
Fresh air
Product is not permitted for the area
Expanded measuring range. The product can be
used conditionally
Area of application of the product with specified
accuracy
The values are guideline values. Depending on the health condition and duration of ex-
posure, problems can also occur below the indicated concentrations under certain cir-
cumstances.

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B-H90.0.0X.DK2-2.1
2 | Safety
G 1910 series
2.3 Safety instructions
_
NOTE
This product does not belong in children's hands!
2.4 Intended use
_
The product is designed exclusively for measurements in ambient air and environ-
ments with slightly elevated CO2concentrations in areas that are not harmful to the
health. It is designed to be carried on the body for mobile use. The user can be warned
optically and acoustically of elevated CO2concentrations based on variable alarm lim-
its. Example applications for this are:
–Use as a monitor for recording of the mean value weighted over 8 hours (TWA)
or 15 minutes (STEL).
–Monitoring of air quality.

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G 1910 series
Measurement Basics | 4
3 The product at a glance
3.1 The G 1910 series
LCD Display
Front view
Sensor openings
Micro USB socket
3.2 Display elements
_
Display
_
Charge status display
Evaluation of the charge status
_
Unit display
Display of units or type of mode, min/max/hold
_
Main display
Measurement of the current CO2value
_
Auxiliary display
Display of the mean value
_
Bar graph
Visualisation of the CO2value
3.3 Operating elements
_
On / Off button
Press briefly
Switch on the product
Activate / deactivate lighting
Long press
Switch off the product
Reject changes in a menu
_

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B-H90.0.0X.DK2-2.1
4 | Measurement Basics
G 1910 series
Up / Down button
Press briefly
Display of the min/max value
Change value of the selected parameter
Long press
Reset the min/max value of the current measure-
ment
Both simultaneously
Rotate display, overhead display
_
Function key
Press briefly
Freeze measurement (Hold)
Return to measurement display
Call up next parameter
Long press, 2s
Start menu configuration, (ONF appears in the dis-
play
3.4 Connections
Micro USB socket
Charging the batteries
4 Measurement Basics
For additional information, refer to the operating manual!

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G 1910 series
Operation and maintenance | 5
5 Operation and maintenance
5.1 Operating and maintenance notices
_
CAUTION
Damage to the sensor
A sensitive optical sensor is installed in the product. The sensor parameters can
change due to impact or falling. This can result in incorrect measurements.
–Protect the product from impact and falling!
–The measurements must be checked after the product falls or is jarred. If the val-
ues deviate, a basic sensor adjustment must be carried out!
_
NOTE
The product must be handled with care and used in accordance with the technical
data. Do not throw or strike.
_
NOTE
If the product is stored at a temperature above 50 °C, or is not used for an extended
period of time, the batteries must be removed or recharged regularly. This prevents
leaks from the rechargeable batteries and increases the life of the rechargeable batter-
ies.
5.2 Battery
5.2.1 Charge status display
_
For additional information, refer to the operating manual!
5.2.2 Charging the batteries
_
For additional information, refer to the operating manual!
5.2.3 Rechargeable battery replacement
_

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B-H90.0.0X.DK2-2.1
5 | Operation and maintenance
G 1910 series
Only use new, high-quality and suitable
NiMH rechargeable batteries!
–NiMH rechargeable batteries
For additional information, refer to the op-
erating manual!
5.3 CO2calibration
_
For additional information refer to the operating manual!
In order to improve the accuracy, the carbon dioxide sensor can be calibrated. In order
to conduct a CO2calibration, proceed as follows.
NOTE
Calibration can be carried out in clean ambient air or with test gases (optionally availa-
ble gas extraction device recommended). 1-point calibration at any arbitrary point and

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G 1910 series
Operation and maintenance | 5
2-point calibration at 0 ppm and an arbitrary point are both possible. Refer to the oper-
ating manual for the 2-point calibration!
For automatic calibration, open the Calibration menu.
–The product is switched on.
–Clean ambient air or test gas for gradient correction
–Gas extraction device, if applicable
1. Press the Function key for 4 seconds to start the calibration. [ONF appears in the
display first, then [AL.
2. 1-point or 2-point calibration is started. This depends on what was adjusted in the
Expanded settings menu.
3. [.SL appears in the display for 1-point calibration.
4. The product determines a stable value first. If the measured value is outside of
the value range integrated in the product, the display flashes briefly and an
acoustic signal is issued every 10 s.
5. If the display flashes briefly, an acoustic signal sounds and the bar display blinks,
a stable correct value has been achieved.

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B-H90.0.0X.DK2-2.1
5 | Operation and maintenance
G 1910 series
6. You can change the value of the gradient compensation with the up key and down
key. Otherwise, confirm the preadjusted value with the function key. The 1-point
calibration is finished.
NOTE
Current test gases normally have accuracies of ± 2 %. This tolerance must be taken
into consideration with the measurement uncertainty. The specifications on the analy-
sis certificate must always be observed.
NOTE
For information about the available calibration settings, refer to Configuring parameters
of the configuration menu.
After the calibration is finished [AL DONE is displayed.
Then, the current measurement is shown in the display again.
If the calibration is not completed successfully an error message is displayed. [AL ERR.
appears in the display. See Error and system messages [18]. Confirm the error mes-
sage pressing the Function key. The product restarts. The values of the last correctly
performed calibration are restored.

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G 1910 series
Operation | 6
6 Operation
6.1 Opening the configuration menu
1. Press the Function key for 2 seconds to open the Configuration menu.
2. (ONF appears in the display. Release the Function key.
_
Parameter
Values
Meaning
_
Input
INP
%
CO2measurement in %
PPm
CO2measurement in ppm
_
Alarms
AL.
OFF
No active alarm
ON
Alarm alerting via text display, acoustic signal and
flashing of the backlighting
BEEP
Alarm alerting via text display and acoustic signal
L,TE
Alarm alerting via text display and flashing of the
backlighting

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B-H90.0.0X.DK2-2.1
6 | Operation
G 1910 series
AL.1
Depending on the setting of the parameter value INP
0.000 .. AL.2
0.. AL2
Min. alarm limit in % or ppm; a pre-alarm is trig-
gered when the value is exceeded
When the pre-alarm is triggered, it can be muted for
5 minutes. To do this, press any key. The display
shows (LR AL.1.
AL.2
Depending on the setting of the parameter value INP
_
G 1910-02
AL.1 .. 1.000 in %
Max. alarm limit, the main alarm is triggered when
the value is exceeded
G 1910-02
AL.1 .. 10000 in
ppm
Max. alarm limit, the main alarm is triggered when
the value is exceeded
G 1910-20
AL.1 .. 19999 in
ppm
Max. alarm limit, the main alarm is triggered when
the value is exceeded
G 1910-20
AL.1 .. 3.200 in %
Max. alarm limit in %; the main alarm is triggered
when the value is exceeded
_
Mean value
LCD.2
8 H
Time weighted over 8 hours, mean value TWA
STEL
Time weighted over 15 minutes, mean value STEL
OFF
Mean value determination deactivated
_

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G 1910 series
Operation | 6
Shut-off time
POFF
OFF
No automatic shut-off
0:15 0:30 1:00 4:00
12:00
Automatic shut-off after a selected time in hours
and minutes, during which no buttons have been
pressed
_
Backlight
L,TE
OFF
Backlight deactivated
0:15 0:30 1:00 4:00
Automatic shut-off of the backlight after a selected
time in minutes and seconds, during which no but-
tons have been pressed
ON
No automatic shut off of the backlight
_
Factory settings
IN,T
NO
Use current configuration
YES
Reset product to factory settings. IN,T DONE appears
in the display
6.2 Call-up of the expanded settings menu
For information refer to the operating manual!

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B-H90.0.0X.DK2-2.1
7 | Error and system messages
G 1910 series
7 Error and system messages
Display
Meaning
Possible causes
Remedy
----
No signal from the
sensor
Measurement far
outside of the meas-
uring range
Sensor not ready
CO2concentration
too high
Defective sensor ad-
justment
Sensor defect
Wait the start-up time of the
sensor
Place the product in clean
outdoor air
Perform sensor adjustment
Send in for repair
----
The display value
could not be deter-
mined
Sensor not ready
Sensor defect
Wait the start-up time of the
sensor
Send in for repair
No display,
unclear
characters
or no re-
sponse
when but-
tons are
pressed
Rechargeable bat-
tery depleted
System error
Product is defective
Rechargeable bat-
tery depleted
Error in the product
Product is defective
Charge battery
Replace rechargeable bat-
tery
Send in for repair
BAT LO
Rechargeable bat-
tery depleted
Rechargeable bat-
tery discharged
Rechargeable bat-
tery defect
Charge battery
Replace rechargeable bat-
tery
(AL ERR.1
Zero point adjust-
ment defective
Incorrectly meas-
ured CO2concentra-
tion for adjustment
Expose sensor to a test gas
with 0 ppm CO2
(AL ERR.2
(AL ERR.3
Defective gradient
compensation
Incorrectly meas-
ured CO2concentra-
tion for adjustment
Incorrect CO2con-
centration
Expose sensor to a test gas
with known CO2concentra-
tion
Enter correct value

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G 1910 series
Error and system messages | 7
(AL ERR.5
Time for stability
recognition ex-
ceeded
Stability recognition
lasts longer than 10
minutes
Provide a consistent flow
with a constant CO2concen-
tration
ERR.1
Measuring range ex-
ceeded
Measurement too
high
Defective sensor ad-
justment
Sensor defect
Stay within allowable meas-
urement range
Perform sensor adjustment
Send in for repair
ERR.2
Measuring range is
undercut
Defective sensor ad-
justment
Sensor defect
Perform sensor adjustment
Send in for repair
ERR.7
Sensor error
Defective sensor ad-
justment
Sensor defect
Perform sensor adjustment
Send in for repair
ERR.T
Temperature error
Permissible temper-
ature range during
charging exceeded
or undercut
Charging of battery only at 0
.. 40 °C
Bring product to room tem-
perature and restart charg-
ing process
SYS ERR
System error
Error in the product
Sensor defect
Switch product on/off
Replace rechargeable bat-
teries
Send in for repair
STAB
No measurement
change within 2
minutes
Product in extremely
constant environ-
ment
Sensor defect
Place the product in clean
outdoor air
Perform sensor adjustment
Send in for repair

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8 | Technical data
G 1910 series
8 Technical data
_
_
G 1910-02
Measuring range (specified accu-
racy)
0 .. 2000 ppm
0.000 .. 0.200 %
Measuring range (not specified)
0.000 .. 1.000 %
Accuracy
± 70 ppm ± 3 % measurement
Measuring cycle
2 seconds
Display
3-line segment LCD, additional symbols, illumi-
nated (adjustable white, permanent illumination)
Additional functions
Min/Max/Hold
TWA calculation / STEL
2-stage alarm (optical and acoustic)
Adjustment
1-point, 2-point and basic sensor adjustment
Housing
Break-proof ABS housing
Protection rating
IP30
Dimensions
L*W*H [mm] and
weight
108 * 54 * 28 mm without measuring cell or kink
protection
180 g, incl. battery and measuring cell
Operating conditions
0 to 50 °C; 0 to 85 % r.h. (non-condensing)
Storage temperature
-20 to 70 °C