Samon FLSJ1263A User manual

GLACIÄR MIDI
Gas Leakage Detector for commercial and industrial applications
USER MANUAL

2
1 INDEX
1 INDEX ............................................................................................................................................................................................. 2
2 PRODUCT DESCRIPTIONS............................................................................................................................................................. 4
2.1 INTENDED USES /APPLICATIONS .................................................................................................................................................................... 4
2.2 PHYSICAL DIMENSIONS ................................................................................................................................................................................... 5
3 INSTALLATION............................................................................................................................................................................... 6
3.1 GENERAL INFORMATION................................................................................................................................................................................. 6
3.2 INSTALLATION TIPS .......................................................................................................................................................................................... 6
3.2.1 Equipment rooms........................................................................................................................................................................................................................ 6
3.2.2 Cold rooms .................................................................................................................................................................................................................................. 6
3.2.3 Chillers........................................................................................................................................................................................................................................... 7
3.2.4 Air conditioning - direct VRF/VRV systems........................................................................................................................................................................... 7
3.3 INSTALLATION................................................................................................................................................................................................. 7
Electrical connection ....................................................................................................................................................................................................... 9
3.4 ADDITIONAL INSTALLATION NOTES ................................................................................................................................................................10
4 OPERATION.................................................................................................................................................................................10
4.1 POWER ON ...................................................................................................................................................................................................10
4.2 DEVICE OPERATING STATES............................................................................................................................................................................11
4.3 SETTING THE DEVICE USING THE ROTARY SWITCH .............................................................................................................................................11
Description of the rotary switch LEDs ................................................................................................................................................................................................ 13
Possible configurations ....................................................................................................................................................................................................................... 13
J6 voltage value conversion table / selected function ................................................................................................................................................... 14
4.4 ANALOGUE OUTPUT......................................................................................................................................................................................15
4.5 ALARM MANAGEMENT .................................................................................................................................................................................16
Alarm set points ................................................................................................................................................................................................................................... 16
4.6 MAGNETIC KEY FOR CONFIGURATION ..........................................................................................................................................................17
4.6.1 Bluetooth activation................................................................................................................................................................................................................ 17
4.6.2 Alarm/warning management ............................................................................................................................................................................................. 17
4.7 SAMON GLACIÄRAPP FEATURES ...............................................................................................................................................................18
4.7.1 Connecting the device via Bluetooth ................................................................................................................................................................................. 18
4.8 MODBUS®NETWORK ..................................................................................................................................................................................21
Parameters for RS485 communication selectable via app or rotary switch .................................................................................................................... 21
4.9 TABLE OF MODBUS®VARIABLES .....................................................................................................................................................................22
Function 04 Read Input Registers ...................................................................................................................................................................................................... 22
Function 06 Write Single Register & Function 16 Write Multiple Register .................................................................................................................................. 23
Function 04 Read Input Registers ...................................................................................................................................................................................................... 23
Input register 302 bits......................................................................................................................................................................................................................... 24
Function 05 Write Single Coil & Function 01 Read Coils ............................................................................................................................................... 24
5 MAINTENANCE...........................................................................................................................................................................25
5.1 CALIBRATION PROCEDURE .............................................................................................................................................................................25
5.2 CALIBRATION KIT ...........................................................................................................................................................................................25
5.3 CALIBRATION VIA APP ....................................................................................................................................................................................26
5.4 CALIBRATION VIA MODBUS®COMMUNICATION ..................................................................................................................................................................... 28
5.4.1 Diagram of the calibration procedure............................................................................................................................................................................... 29
5.4.2 Operation of the registers for calibration.......................................................................................................................................................................... 30
5.5 SENSOR REPLACEMENT PROCEDURE .............................................................................................................................................................31
Built-in version...................................................................................................................................................................................................................................... 31
Remote version .............................................................................................................................................................................................................. 31
5.6 CLEANING THE DEVICE ..................................................................................................................................................................................32

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6 FURTHER INFORMATION ...........................................................................................................................................................32
6.1 SENSOR OPERATING PRINCIPLE ......................................................................................................................................................................32
6.1.1 Semiconductor sensors .......................................................................................................................................................................................................... 32
6.1.2 Electrochemical sensors......................................................................................................................................................................................................... 32
6.1.3 Pre-calibrated sensors and devices .............................................................................................................................................. 32
6.2 GAS DETECTED ..............................................................................................................................................................................................33
6.3 TECHNICAL SPECIFICATIONS...........................................................................................................................................................................34
6.3.1 Mechanical specification...................................................................................................................................................................................................... 34
6.4 DISPOSAL OF THE DEVICE ...............................................................................................................................................................................35
6.4.1 Disposal of electrical and electronic equipment............................................................................................................................................................. 35
6.4.2 Disposal of the sensors........................................................................................................................................................................................................... 35
6.4.3 Conformity to standards ............................................................................................................................................................... 35
7 ORDER INFORMATION ..............................................................................................................................................................36
7.1 GAS DETECTOR GLACIÄR MIDI SERIES PART NUMBERS .................................................................................................................................36
7.2 SENSOR ELEMENT PART NUMBERS ................................................................................................................................................................36
7.3 ACCESSORIES ...............................................................................................................................................................................................36

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2 PRODUCT DESCRIPTION
2.1 Intended use / Applications
The GLACIÄR MIDI series leakage detectors continuously monitor indoor air for any refrigerant leaks.The devices can be used for
refrigeration applications (cold rooms, freezer rooms, machinery rooms).
The GLACIÄR MIDI series detectors are available in the following configurations:
• Built-in version
• Remote version
They are calibrated to detect most refrigerants currently available on the market. The sensitive elements are constructed using
semiconductor (SC) technology, infrared (IR) technology, or electrochemical (EC) technology.
The GLACIÄR MIDI series detectors can be used in stand-alone applications or connected to SAMON controllers or third-party devices.
Communication with controllers uses an analogue output, relays, or an RS485 Modbus®serial connection.
When a refrigerant leakage exceeding a programmable concentration threshold is detected, an alarm or warning status is activated, depending
on the level of concentration set, and the GLACIÄR MIDI responds as follows:
• The combination of LEDs that are on changes
• A dedicated internal relay (SPDT) is activated
• The analogue output is controlled (in proportion to the detected concentration)
• The change in status is signalled via the RS485 Modbus® output
Furthermore, the“SAMON GLACIÄR”app, available in both App Store and Play Store, can be used to access the device.
The GLACIÄR MIDI series detectors enable compliance with refrigeration safety standards (e.g., EN 378, ASHRAE 15) through alarms to alert
personnel in the event of a refrigerant leakage.
WARNING: semiconductor sensors detect the gas they have been calibrated for, but are also sensitive to other
types of gases, solvents, alcohol, or substances containing ammonia, such as cleaning products, present in the
environment. This, in certain areas and applications, can lead to false alarms when the substances described
above are present. Nonetheless, although they do not only detect the specific gas, but they also still give a
reliable indication of the concentration of the gas they have been calibrated for.
WARNING:This device is neither certified nor approved for operation in oxygen-enriched atmospheres. Non-
compliance can lead to EXPLOSION.
WARNING:This device has not been designed to guarantee intrinsic safety when used in areas classified as
hazardous (“Directive 2014/34/EU ATEX” and“NFPA 70, Hazardous Location”). For operator safety, DO NOT use it in
hazardous locations (classified as such).
If the equipment is used in a manner not specified by the manufacturer, the protection provided by the
equipment may be impaired.
GLACIÄR MIDI is available in five main versions:
• Infrared version for CO2
• Electrochemical version for Ammonia
• Semiconductor version for R32 refrigerant gas blends
• Semiconductor version for HC refrigerant gases
• Semiconductor version for HFC/HFO refrigerant gases

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2.2 Physical dimensions
Built-in version
Remote version

6
3 INSTALLATION
IMPORTANT:the gas detector must only be installed by qualified personnel.
It is recommended to read the manual completely in order to use the product correctly.
3.1 General information
The performance and overall effectiveness of the system strictly depend on the characteristics of the place where the gas
detector is installed. It is therefore necessary to scrupulously comply with and carefully analyse every detail of the
installation process, including (but not limited to) the following aspects:
• local, state and national regulations and standards governing the installation of gas monitoring equipment
• electrical standards governing the laying and connection of power and signal cables to gas monitoring equipment
• all possible environmental conditions that the devices will be exposed to
• the physical characteristics of the gas to be detected (in particular, its specific weight)
• the characteristics of the application (e.g., possible leakages, movement of air, areas where gas may stagnate, high pressure
areas, etc.)
• the accessibility needed for routine maintenance and repairs
• the types of equipment and accessories needed to manage the system
• any limiting factors or regulations that may affect system performance or installations.
IMPORTANT: the installation surfaces must not be exposed to continuous vibrations so as to prevent damage
to the connections and electronic devices.
3.2 Installation tips
CAUTION: THERE IS NO GENERAL RULE for establishing the appropriate number of sensors and
their location for each application. Therefore, the guidelines described below are intended as
support for installers, and not as rules in their own right. SAMON accepts no liability for the
installation of the gas detectors.
3.2.1 Sensor height
Gas type
Mounting height
NH3Ammonia (R-717)
20 cm below ceiling
HFC / HFO / C3H8Propane (R290)
20 cm above the floor
CO2Carbon Dioxide (R744)
20 cm above the floor
3.2.2 Equipment rooms
In equipment rooms, the gas detectors can be installed as follows:
• Position the gas detectors near areas with a high concentration of refrigerant, such as compressors, cylinders, storage tanks,
pipes and conduits. Avoid vibrating surfaces.
• Position the gas detectors near mechanical parts such as pressure reducers, valves, flanges, joints (brazed or mechanical) and
pipes. In particular, above or below these in relation to the type of gas (see below).
• Position the gas detectors around the perimeter of the room, so as to completely surround the equipment.
• Position the gas detectors in all enclosed areas (stairwells, pits, enclosed corners, etc.) where pockets of stagnant gas may
form.
• Position the gas detectors near ventilation air flows, both natural and mechanical (if present).
• Do not place the gas detectors too close to areas with high-pressure gas, to allow this to spread in the space around the gas
detector. Otherwise the device may not detect the refrigerant leak if the flow of gas is too fast.
3.2.3 Cold rooms
In cold rooms, position the gas detectors near the return air flow from the evaporator, ideally on a side wall, but not directly
in front of the evaporator.
Where there are several evaporators, it may be possible to use one gas detector for every two evaporators if their
positioning allows.
Finally, position the gas detectors near mechanical parts or joints such as valves, flanges, and pipes, avoiding areas with
high-pressure gas.

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3.2.4 Chillers
Measuring leaks on outdoor chillers is generally more difficult, given the highly variable air flow.
Generally, it is recommended to install the gas detectors near the compressor, as this is the place where refrigerant leaks
are most likely to occur. In particular, check if it is possible to install the gas detector inside the closed unit near the
compressor, where gas is more likely to stagnate. However, avoid vibrating surfaces or surfaces that are difficult to access
for maintenance.
It is also recommended to install gas detectors along the ventilation system, especially in the event of low or variable air
flow speeds.
3.2.5 Air conditioning - direct VRF/VRV systems
In air-conditioned buildings, it is recommended to install at least one gas detector in each room, identifying the areas of
greatest risk, such as air flows from ventilation systems and heating systems such as radiators.
In these spaces, the refrigerant gas is usually denser than air: consequently, the gas detectors should be installed close
to the floor.
Also consider installing the gas detector in ceilings or false ceilings, if not adequately sealed. Do not install the gas
detectors underneath mirrors/washbasins and inside bathrooms.
Do not install the gas detectors near sources of steam.
3.3 Installation
Once the optimal position to install the sensor has been chosen, it is recommended to install the sensor (identifiable on
the device by the black sensor housing) in a vertical position, with the sensitive element (black part) facing downwards. The
sensor can now be mounted on the wall, as follows:
• Drill the holes in the wall using the measures on the bottom side of the detector (shown in the picture below).
• Fix the device using four screws, chosen according to the type of installation and the type of wall, maximum diameter 4 mm,
minimum length 15 mm and torque 2,5 Nm.
• Fix the remote sensor using one screw, chosen according to the type of installation and the type of wall, maximum diameter
4 mm, minimum length 15 mm and torque 2.5 Nm.

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• Open the cover of the GLACIÄR MIDI, fit the cable glands and make the required electrical connections. The plug-in
terminals can be removed from the device to facilitate wiring.
• Power the device on and complete the settings using the rotary switch, as described in the following paragraphs, or using the
app, as described below or through the Modbus connection.
• Use the cable glands provided to pass through and connect the cables to the terminals, as shown in the figure and in the
connection table below. The terminals can be removed to simplify wiring.
• Close the cover
• Cord range for M16 cable gland 5 - 10 mm, for M20 cable gland 7.5 - 11.3 mm
• Use UL listed approved cable, min. 50°C, suitable for electrical rating in application
• Tighten the cable glands with a toque of 2,5 Nm
• Close the cover.

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Electrical connection
J1
+
Analogue output
G
Analogue output reference
J2
Sh
Shielded RS485 cable
G0
GND for RS485
A
Tx + / Rx + for RS485
B
Tx- / Rx- for RS485
J3
+24
Vac/dc
For Vac power supply, connect the second transformer wire
+24 V
AC/DC
For Vdc power supply, connect one of the two power wires, the device automatically recognizes whether this
is + or GND. For AC power supply, connect one of the two transformer wires.
J4
1A
NO contact for the warning/fault relay
2A
Common for the warning/fault relay
3A
NC contact for the warning/fault relay
J5
1B
NO contact for the alarm relay
2B
Common for the alarm relay
3B
NC contact for the alarm relay
J6
+
V+ for the output voltage provided for service
G
Service voltage reference
J7
/
Built-in version sensor connector
J8
/
Remote version sensor connector (connection not to be used for built-in products)
All external circuits connected to device shall be double or reinforced isolated from mains meet SELV and Limited
energy requirements according to clause 9.4 of UL61010-1 3rd edition.

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• Secure the detector cover with the four screws.
• Power the device on and set the parameters using the “SAMON GLACIÄR” app (see the relevant chapter) if the settings were
not previously made using the rotary switch.
3.4 Additional installation notes
Before commencing electrical installation and wiring, carefully read the following notes:
• Power must be supplied by a safety isolation transformer (Class 2) with no earth connection on the secondary winding.
• The cable for the relays must be sized and fitted with fuses based on the rated voltages, currents, and environmental
conditions.
• If stranded wires are used, it is recommended to use an end terminal.
• To comply with RFI immunity regulations, the communication cable shield on the supervisor must be earthed (e.g., to the
chassis, earth bar, etc.)
• Complete all wiring before powering on.
4 OPERATION
4.1 Power on
When power is connected, the device begins the start-up cycle, divided into two phases:
• start-up
• warm-up
The start-up sequence lasts around 20 seconds, during which the main functions of the gas detector are initialized and
verified. In this phase, the LEDs on the front panel are activated in sequence, and the device cannot yet be used.
At the end of the start-up sequence, the warm-up phase commences, during which the sensor output signal is adjusted
and stabilized. In this phase, the device can be used to detect gas and installation can be completed via the rotary
switch, app or controller; nonetheless, the measurement is less reliable, and calibration is not possible.
During the warm-up phase, the green LED flashes around twice every second. The duration of the warm-up phase
depends on the sensor technology used:
• Semiconductor = 5 min
• Electrochemical = 5 min
• Infrared = 2 min
The duration of the warm-up phase may also vary according to environmental conditions. In this phase it is important not
to cause sudden changes in gas concentration, so as to avoid compromising correct measurement by the sensor.
IMPORTANT: the sensors may take longer to warm up than specified; in these cases, do not take any action,
wait for the device to stabilise. The time needed for complete stabilisation of the device may vary from 2 hours
(minimum time) to 24 hours (recommended time).

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4.2 Device operating states
The GLACIÄR MIDI series gas detectors provide visual indications of their current operating status, in addition to the
relay outputs. Visual indication of device operating status is provided by three LEDs (green/red/orange).
Device status and the corresponding outputs are shown in the following table:
Status
LED
Warning/Fault relay
Alarm relay
Warm-up
OFF
OFF
Normal
OFF
OFF
Bluetooth
OFF
OFF
Serial connected
Internal LED W8 on steady
---
---
Warning delay
OFF
OFF
Alarm delay (RWF* = 0)
ON
OFF
Alarm delay (RWF* = 1)
OFF
OFF
Warning (RWF* = 0)
ON
OFF
Warning (RWF* = 1)
OFF
OFF
Alarm (RWF* = 0)
ON
ON
Alarm (RWF* = 1)
OFF
OFF
Fault (RWF* = 0)
Red and yellow on steady
Green LED OFF
ON
ON
Fault (RWF* = 1)
Red and yellow on steady
Green LED OFF
ON
OFF
*RWF = Relay WF Modbus register

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4.3 Setup of the device using the rotary switch
The rotary switch (R1) is located inside the device, on the electronic board .
The basic configuration can be performed using the rotary switch, following the instructions described below. To
complete the configuration, a digital multimeter is required, with the test leads connected to connector J6. In this way, the
tester will show a voltage between 0 and 10 Volts, indicating the value selected by the rotary switch. The meaning of the
voltage value displayed changes depending on the selected function: the table below shows the meaning of each
voltage for each function.
Setting mode is activated by pressing and holding the rotary switch for 5 seconds. The LED that is ON acts as the menu
point, indicating which parameters will be set (all the other LEDs are OFF). Turn the switch to select the parameter to be
set. Reading the table, the voltage read with a voltmeter connected to the service terminal indicates the chosen setting.
Pressing the rotary switch for 2 seconds accesses the selected parameter. The corresponding LED flashes. Turning the
rotary switch changes the parameter setting.
After having made the setting, pressing the rotary switch for 5 seconds saves the new value. Turning the rotary switch
again moves to the next parameter.
After two minutes of inactivity or pressing the rotary switch for 10 seconds, the detector returns to normal operating
mode.

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Description of the rotary switch LEDs
The table below shows the value of the selected parameter and the corresponding voltage value. Each LED corresponds
to a different parameter. The default parameter values are saved to permanent memory.
LED W1
Not used
LED W2
Warning level.
The operator can set the warning threshold.
See the table below for the voltage value corresponding to the selected setting.
LED W3
Alarm level
The operator can set the alarm threshold.
See the table below for the voltage value corresponding to the selected setting.
LED W4
Modbus address
The operator can set the Modbus address.
To set the values with greater precision, use the Modbus serial connection or app. See the table below for
the voltage value corresponding to the selected setting.
LED W5
Alarm delay
The operator can select the delay time for activation of the LED and the alarm relay after the alarm threshold
has been exceeded.
See the table below for the voltage value corresponding to the selected setting.
LED W6
Type of analogue output voltage.
The operator can select the type of analogue output.
See the table below for the voltage value corresponding to the selected setting.
LED W7
Alarm/warning reset function mode
This parameter is used to select the warning and alarm reset modes. 0 = manual reset (latch) / 1 = automatic
reset
LED W8
Modbus configuration
The operator can choose the desired Modbus configuration from the options available. See the table below
for the voltage value corresponding to the selected setting.
Possible configurations - Alarm/warning reset function mode (W7)
W=0
A=0
Manual reset
Warning
Manual reset
Alarm
W=1
A=0
Automatic reset
Warning
Manual reset
Alarm
W=0
A=1
Manual reset
Warning
Automatic reset
Alarm
W=1
A=1
Automatic reset
Warning
Automatic reset
Alarm

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J6 voltage value conversion table / selected function
Service
wheel LED
W2 / W3
W4
W5
W6
W7
W8
Full scale
1000
Full scale
4000
Full scale
10000
Full scale
100
Voltage [V]
[ppm]
[ppm]
[ppm]
[ppm]
[--]
[m]
[--]
[--]
[--]
0
0
0
0
0
0
0
0,1
100
100
100
1
1
0,2
200
200
200
2
2
0,3
300
300
300
3
3
0,4
400
400
400
4
4
0,5
500
500
500
5
5
5
0,6
600
600
600
6
6
0,7
700
700
700
7
7
0,8
800
800
800
8
8
0,9
900
900
900
9
9
1
1000
1000
1000
10
10
10
9600 8N1
1,1
1100
1100
11
11
1,2
1200
1200
12
12
1,3
1300
1300
13
13
1,4
1400
1400
14
14
1,5
1500
1500
15
15
15
1,6
1600
1600
16
16
1,7
1700
1700
17
17
1,8
1800
1800
18
18
1,9
1900
1900
19
19
2
2000
2000
20
20
20
4-20 mA
W=0 A=0
9600 8N2
2,1
2100
2100
21
2,2
2200
2200
22
2,3
2300
2300
23
2,4
2400
2400
24
2,5
2500
2500
25
25
2,6
2600
2600
26
2,7
2700
2700
27
2,8
2800
2800
28
2,9
2900
2900
29
3
3000
3000
30
30
19200 8N1
3,1
3100
3100
31
3,2
3200
3200
32
3,3
3300
3300
33
3,4
3400
3400
34
3,5
3500
3500
35
35
3,6
3600
3600
36
3,7
3700
3700
37
3,8
3800
3800
38
3,9
3900
3900
39
4
4000
4000
40
40
19200 8N2
4,1
4100
41
4,2
4200
42
4,3
4300
43
4,4
4400
44
4,5
4500
45
45
4,6
4600
46
4,7
4700
47
4,8
4800
48
4,9
4900
49
5
5000
50
50
1-5 V
W=1 A=0
5,1
5100
51
5,2
5200
52
5,3
5300
53
5,4
5400
54
5,5
5500
55
55
5,6
5600
56
5,7
5700
57
5,8
5800
58
5,9
5900
59
6
6000
60
60
9600 8E1
6,1
6100
61
6,2
6200
62
6,3
6300
63

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Service
wheel LED
W2 / W3
W4
W5
W6
W7
W8
Full scale
1000
Full scale
4000
Full scale
10000
Full scale
100
Voltage [V]
[ppm]
[ppm]
[ppm]
[ppm]
[--]
[m]
[--]
[--]
[--]
6,4
6400
64
6,5
6500
65
65
6,6
6600
66
6,7
6700
67
6,8
6800
68
6,9
6900
69
7
7000
70
70
19200 8E1
7,1
7100
71
7,2
7200
72
7,3
7300
73
7,4
7400
74
7,5
7500
75
75
7,6
7600
76
7,7
7700
77
7,8
7800
78
7,9
7900
79
8
8000
80
80
2-10 V
W=0 A=1
9600 8O1
8,1
8100
81
8,2
8200
82
8,3
8300
83
8,4
8400
84
8,5
8500
85
85
8,6
8600
86
8,7
8700
87
8,8
8800
88
8,9
8900
89
9
9000
90
90
19200 8O1
9,1
9100
91
9,2
9200
92
9,3
9300
93
9,4
9400
94
9,5
9500
95
95
9,6
9600
96
9,7
9700
97
9,8
9800
98
9,9
9900
99
10
10000
100
100
0-10 V
W=1 A=1
4.4 Analogue output
The GLACIÄR MIDI series gas detectors feature a single configurable analogue output. During normal operation, the
device’s analogue output signal is proportional to the gas concentration measured, and can be selected from the
following options:
• 1 to 5 V
• 2 to 10 V
• 0 to 10 V
• 4 to 20 mA (default)
The GLACIÄR MIDI series gas detectors use different voltage/current values to indicate different operating modes. In
normal operation, the gas concentration is indicated by the analogue output signal level. The relationship between
output signal level and gas concentration is shown below:
Gas concentration
1-5 V
2-10V
0-10V
4-20 mA
Underrange
2 mA
0%
1 V
2 V
0 V
4 mA
50%
3 V
6 V
5 V
12 mA
100%
5 V
10 V
10 V
20 mA
Overrange
22 mA

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4.5 Alarm management
The alarms are activated when the set thresholds are exceeded. The alarm threshold value must always be greater than
the warning value. The alarm and warning thresholds must be less than or equal to the full-scale range and must be
greater than or equal to the allowed limit. The alarms are activated when the set thresholds are exceeded.
Alarm set points
Sensor, gas and range
Minimum value
Alarm default
Warning default
Maximum value
Unit of measure
SC, HFC/HFO 0-1000 ppm
150
500
150
800
ppm
SC, R290, 0-4000 ppm
400
800
400
3000
ppm
IR, CO2, 0-10000 ppm
1000
5000
1500
8000
ppm
EC, NH3, 0-100 ppm
15
30
15
80
ppm
1
2
3
4
5
300 PreAlarmflag = 0
300 PreAlarmflag = 0
300 PreAlarmflag = 0
300 PreAlarmflag = 1
300 PreAlarmflag = 1
307 PreWarningFlag =
0
307 PreWarningFlag =
1
307 PreWarningFlag =
1
307 PreWarningFlag = 1
307 PreWarningFlag =
1
308 WarningFlag = 0
308 WarningFlag = 0
308 WarningFlag = 1
308 WarningFlag = 1
308 WarningFlag = 1
309 AlarmFlag = 0
309 AlarmFlag = 0
309 AlarmFlag = 0
309 AlarmFlag = 0
309 AlarmFlag = 1
Yellow LED OFF
Yellow LED flashing
Yellow LED ON
Yellow LED ON
Yellow LED ON
Red LED OFF
Red LED OFF
Red LED OFF
Red LED flashing
Red LED ON
Warning relay OFF
Warning relay OFF
Warning relay ON
Warning relay ON
Warning relay ON
Alarm relay OFF
Alarm relay OFF
Alarm relay OFF
Alarm relay OFF
Alarm relay ON

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4.6 Magnetic key for configuration
The device is supplied with a magnet for configuration. By placing it in the slot provided, the following functions can be
managed:
4.6.1 Bluetooth activation
After 5 seconds of exposing the magnet to the magnetic sensor, Bluetooth mode is activated. If Bluetooth is already on,
after 5 seconds of exposure Bluetooth is deactivated.
Bluetooth mode is automatically deactivated after 20 minutes of inactivity. Product operation in Bluetooth mode is
indicated by the rapid flashing of the green LED.
Bluetooth Activation is used to set up the product on installation and/or enter maintenance mode. When in this mode,
the alarms (if present) are disabled until the normal operating mode is restored, deactivating Bluetooth.
4.6.2 Alarm/warning management
If a warning or alarm is active, after 2 seconds of exposure, the alarm will be acknowledged and deactivated. If gas is still
present, the detector will enter alarm or warning mode as usual, after a 10-second delay.

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4.7 SAMON GLACIÄR app features
The “SAMON GLACIÄR” app lets users fully exploit the potential of the new GLACIÄR MIDI series gas detectors, allowing
simple and intuitive interaction with the gas detector. This simplifies configuration by using a smartphone to interface
with the GLACIÄR MIDI gas leakage detectors.
The SAMON GLACIÄR app is available on the ANDROID store and on the IOS App Store.
SAMON GLACIÄR can be used to perform the following functions:
• Configuration: modify alarm thresholds, configure Modbus settings, modify relay behaviour, and manage analogue output
settings
• Maintenance: check correct functioning of the device
• Calibration, complete with calibration report
• Display of current gas concentration measurement and indication of alarm/fault status
4.7.1 Connecting the device via Bluetooth
Before connecting to the device via the SAMON GLACIÄR app, first make sure that the BLUETOOTH connection and
GEOLOCATION are enabled on the smartphone used (Android only).
Make sure that Bluetooth mode has been activated on the GLACIÄR MIDI using the magnetic key, as described in the
previous chapter.
Open the SAMON GLACIÄR app (previously downloaded); the following screen is displayed.
Login screen
Bluetooth connection screen
Select:
• Operator, to continue displaying the gas detector variables
and parameters.
• Technician, for password access and the possibility to set the
parameters and variables.
The password to unlock the device is 2222.
If all the functions described above have been enabled on the
smartphone and the GLACIÄR MIDI is in Bluetooth mode, the
available devices are shown on the app screen. If this is not the case,
touch the app screen to refresh the display.
Verify that the serial number on the label of the device being
connected matches the one displayed on the screen.
Select the correct device and verify correct connection. The
Bluetooth symbol at the top right changes from red to green.

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Home screen
PARAMETERS screen
From the home screen, it is possible to display the current
concentration level measured by the sensor, with the corresponding
alarm and warning thresholds.
The following screens can also be accessed:
• PARAMETERS
• MODBUS SETUP
• Test
• Calibration
• More
This screen displays the sensor parameters.
It is also possible to select the type of gas to be detected, from those
that are compatible with the sensor. See the other information
chapter in this manual for further details.
The following parameters can be displayed and modified if the user is
logged with Technician access:
• Warning (ppm): Threshold for activating Warning.
• Warning Reset: Determines if Warning will revert to IDLE
automatically if gas levels drop below Warning threshold or
requires manual acknowledgement to be reset.
• Alarm (ppm): Threshold for activation of Alarm.
• Alarm Reset: Determines if Alarm will revert to IDLE
automatically if gas levels drop below Alarm threshold or
requires manual acknowledgement to be reset.
• Relay Warning Fault (RWF): Activate to turn Warning relay
into a dedicated fault relay.
• Output type: Choose analog output scale for J1. Mode
description in section 4.4 (Insert reference).
• Alarm delay: The delay in minutes from the measured
concentration passes the threshold value to the moment the
alarm activates. Affect both Warning and Alarm.
• Gas type: The specific gas to be measured.

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MODBUS SETUP screen
Test mode screen
The following parameters can be set:
• Modbus address
• Baud rate
• Parity and stop bits.
Pressing SET DEFAULT sets the default parameters shown in the table
in the Modbus setup paragraph (Does not affect the Modbus
address.).
If enabled, the following functions can be activated in test mode, i.e.
not corresponding to the behaviour of the device, rather for
debugging:
• Warning relay
• Alarm relay
• Green LED
• Red LED
• Yellow LED
• Analogue output
More screen
IMPORTANT: the Calibration screen is explained in detail in
paragraph 5.2 CALIBRATION VIA APP.
Displays the app technical and legal information.
• App settings, change the unit of measure for the
temperature displayed in the app
• Device Info, view information on the currently connected
device
• Create report: to make a copy of the most recent report
generated
• Change logo, to replace the default logo that is shown on the
calibration certificate with a different one
• Third party license, see information on the third-party
licenses used.