Dräger GasSecure GS01 User guide

GasSecure GS01 and GS01-EA
Wireless Infrared Hydrocarbon
Gas Detector
Safety Manual
Document ID: 21440 Contact info
Release: 6 GasSecure AS
Version: 164 Hoffsveien 70 C
Doc. Status: APPROVED N-0377 Oslo
Last modified: 12/12/2019 Norway
www.gassecure.com
[email protected]

GasSecure GS01
Safety Manual
I
Note
Please read the complete manual carefully before including the GS01 gas
detector in a safety instrumented system.
GasSecure AS, all rights reserved.

GasSecure GS01
Safety Manual
II
PRODUCT AND SAFETY DATA
Manufacturer GasSecure AS
Country of origin Norway
Model GS01, GS01-EA
Environmental conditions
Operating temperature -30oC to +55oC
Humidity 0 to 90% RH
1
non-condensing
Pressure influence, 700-1300 hPa ≤0.15% of reading per hPa
(at 50% LEL)
Protection classification IP 66/67
Electrical
RF output power GS01 ≤12 dBm EIRP
RF output power GS01-EA ≤16 dBm EIRP
Battery type Lithium-Thionyl Chloride
Average power 5 mW
Explosion Protection II 2G Ex ib IIC T4 Gb
For zone 1 and 2 or safe area
Electromagnetic compatibility (EMC) Fulfils immunity requirements
for SIL2 as per EN 61326-3-1
and compliant with EN 50270
1
The manufacturer verified conditions are 0 to 100% RH and condensing.

GasSecure GS01
Safety Manual
III
TABLE OF CONTENTS
1. INTRODUCTION ........................................................................................................................4
1.1 SCOPE.....................................................................................................................................4
1.2 END-USER REGISTRATION.........................................................................................................4
1.3 INSTRUMENT DESCRIPTION........................................................................................................4
1.4 ACCESSORIES ..........................................................................................................................5
1.5 AREA OF APPLICATION ..............................................................................................................5
1.6 OPERATOR INTERFACE .............................................................................................................5
1.7 DEVICE CONFIGURATIONS.........................................................................................................6
1.8 ADDITIONAL DOCUMENTATION ...................................................................................................7
2. SAFETY FUNCTION..................................................................................................................8
3. COMMISSIONING......................................................................................................................9
3.1 SAFE COMMUNICATION..............................................................................................................9
3.2 OUTPUT DATA FORMAT ...........................................................................................................10
4. INSTALLATION........................................................................................................................11
5. OPERATION AND MAINTENANCE ........................................................................................12
6. PROOF TEST...........................................................................................................................13
7. SPECIFICATIONS....................................................................................................................14
8. CERTIFICATIONS AND FAILURE RATE DATA.....................................................................15
9. REFERENCES .........................................................................................................................17
FIGURES
FIGURE 4-1: CORRECT POSITION OF THE WEATHER CAP........................................................................11
TABLES
TABLE 1-1: GS01 DEVICE CONFIGURATIONS...........................................................................................6
TABLE 3-1: MAIN PROFISAFE PARAMETERS USED BY THE GS01 ............................................................9
TABLE 7-1: TYPICAL PERFORMANCE CHARACTERISTICS FOR THE GS01.................................................14
TABLE 8-1: SIL PARAMETERS GS01 DETECTOR....................................................................................15
TABLE 8-2: DATA OUTPUT FOR THE DIFFERENT FAILURE CATEGORIES ....................................................16

GasSecure GS01
Safety Manual
4 CHAPTER 1
1. INTRODUCTION
1.1 Scope
This manual contains all information and safety instructions required when using
the GasSecure GS01 gas detector (all configurations as outlined in Section 1.7) in
safety-instrumented systems.
The combination of the GS01 detector with a safety controller forms a safety
instrumented system that performs the overall safety function. This manual covers
the detector. It is assumed that the user is familiar with SIL2 compliant safety
controllers, the PROFINET protocol, and the PROFIsafe profile.
The safety manual addresses system planners, constructors, service and
maintenance engineers and any personnel commissioning and operating the
device.
For complete information regarding performance, installation, operation,
maintenance and specifications of the above products, please refer to the
associated user manual [RD 1]. In case of discrepancies, this manual takes
precedence over the user manual.
1.2 End-user registration
Registration of GS01 users with GasSecure is a condition for the safe operation of
the GS01 gas detector throughout the product life.
Please make sure that your end-user contact details are registered with
GasSecure so that you can be contacted in the event of safety relevant product
information.
1.3 Instrument description
The GS01 is a wireless, battery powered point detector that monitors the
concentration of hydrocarbon gases.
It uses a combination of two sensors:
1. An ultrasonic speed-of-sound sensor that continuously monitors changes in
the ambient air composition
2. An optical (infrared) absorption sensor that is used for accurate
measurements of the hydrocarbon gas concentration
The infrared sensor uses more power than the ultrasonic and is therefore kept in
watch mode if the ultrasonic sensor does not detect any changes in the air
composition. The infrared sensor applies optical MEMS (Micro Electro Mechanical
System) technology to enable intermittent operation with fast start-up and
measurement, and thus a low average battery consumption.

GasSecure GS01
Safety Manual
INTRODUCTION
5
The measured gas concentration is transmitted wireless using the ISA100
Wireless™standard.
The detector is intrinsically safe, with equipment protection level Gb (Ex ib)
intended for use in zone 1 and 2 areas.
Two models are available of this gas detector
- GS01 with fixed antenna
- GS01-EA with extended antenna
All information in this manual for the GS01 also applies for the GS01-EA unless
explicitly otherwise noted.
The GS01 may only be used with the GasSecure battery pack (GasSecure p/n
10055, Dräger p/n AL20712 and AL20713), which contains two Lithium-Thionyl
Chloride size D cells in series.
1.4 Accessories
Use only original GasSecure GS01 accessories and spare parts. A list of these
items with part numbers is provided in the GS01 user manual [RD 1].Area of
application
The gas detector is intended for use in a Fire and Gas safety system that protects
onshore or offshore installations by detecting potentially explosive mixtures of
hydrocarbons and air.
1.6 Operator interface
The interfaces available to the operator are described below.
Service port interface:
For device provisioning (ISA100 Wireless communication)
The service port interface consists of 6 electrical pins located in the battery
compartment behind the battery pack. This interface shall only be accessed
with GasSecure serial adapter (GasSecure p/n 10156, Dräger p/n AL20710)
and GasSecure proprietary software. Note that the GS01 device will not
perform the safety function but output the fail safe values while the service
port is operated.
Communication/Radio interface:
For sending the process value (for data format see Section 3.2)
For verification of data integrity and device configuration with a set of
iParameters in PROFIsafe [RD 3] (see Table 1-1),
Hardware (physical) interfaces:
Gas inlet and outlet on weather cap, for efficient flow of ambient air into the
measuring cell.

GasSecure GS01
Safety Manual
6 CHAPTER 1
6 mm tube fitting on weather cap, for detector validation including the proof
test (see Section 6).
Window and mirror, for cleaning (described in [RD 1],
Battery replacement (described in [RD 1],
1.7 Device configurations
The following table lists all available configurations of the GS01 gas detector,
which meet the specific safety requirements of IEC 61508 and IEC 61511:
Table 1-1: GS01 device configurations
Product number
Firmware
version
Calibration /
data type
SIL
level
IPAR_0
IPAR_CRC
[hex]
GS-01 Config-1
≥3.0
Methane IEC /
Float
SIL 2
1
0xF4ACFB13
GS-01 Config-2
≥3.0
Propane IEC /
Float
SIL 2
2
0x1DF50D35
GS-01 Config-129
≥ 3.3
Methane NIOSH
/ Float
SIL 2
129
0x5B5C5A1F
GS-01 Config-130
≥ 3.3
Propane NIOSH
/ Float
SIL 2
130
0xB205AC39
GS-01 Config-65
≥ 3.4
Methane IEC /
INT16
SIL 2
65
0xA354AB95
GS-01 Config-66
≥ 3.4
Propane IEC /
INT16
SIL 2
66
0x4A0D5DB3
GS-01 Config-193
≥ 3.4
Methane NIOSH
/ INT16
SIL 2
193
0x0CA40A99
GS-01 Config-194
≥ 3.4
Propane NIOSH
/ INT16
SIL 2
194
0xE5FDFCBF
The above GS01 configurations are selected during commissioning of the device.
The configuration is implemented as iParameter i.e. individual or technology
specific device parameters in PROFIsafe [RD 3]. The controller shall be set up
with the corresponding iParameter for each detector address for verification of the
configuration. Communication is not possible when the IPAR_CRC value is not
assigned.

GasSecure GS01
Safety Manual
INTRODUCTION
7
1.8 Additional documentation
This document deals with the GS01 gas detector exclusively as part of a safety
function. For operation of the GS01, the following document –covering all non-
safety relevant features - is also needed:
GasSecure GS01 Wireless Infrared Hydrocarbon Gas Detector User
manual Document ID 112464.

GasSecure GS01
Safety Manual
8 CHAPTER 1
2. SAFETY FUNCTION
The GS01 gas detector is suitable for use in a safety function of safety integrity
level (SIL) 2. The GS01 gas detector can be used in low demand mode or in high
demand mode with a maximum demand of < 1 / 200 hours.
The safety-related characteristics listed in Section 8 may be used in the relevant
calculations required for IEC 61508 / 61511 safety-instrumented system
compliance.
The safety function of the GS01 is the detection of potentially explosive gas
concentrations. The gas concentration in %LEL is converted into a digital
measured value and provided as a radio signal using the ISA100 Wireless™
standard and the PROFIsafe profile to a control system. ISA100 Wireless ensures
AES128 bit encryption (AES = Advanced Encryption Standard) of all transmitted
data. This encryption may by no means be de-activated by the operator.
The GS01 gas detector will perform all critical diagnostic functions within the
intervals as specified in Table 8-1.

GasSecure GS01
Safety Manual
COMMISSIONING
9
3. COMMISSIONING
Note: On completion of commissioning, the proof test, as described in Section 6,
shall be executed to validate the proper functioning of the safety function.
3.1 Safe communication
The GS01 uses the PROFIsafe profile [RD 3] over PROFINET as tool for safe
communication. In this setup the GS01 acts as F-Slave, a passive communication
peer able to perform PROFIsafe. Its counterpart is the F-Host, a data processing
unit able to perform PROFIsafe and trigger the F-Slave for data exchange. The F-
Host must be compliant with the PROFIsafe requirements so that end-to-end
communication through a black channel, defined by the IEC 61508 standard, can
be established.
3.1.1 Setup
The F-Host owner (normally the engineering company or the end-user) must
address the list of items listed below. Note also Table 3-1, where the main
PROFIsafe parameters used by the GS01 are listed.
The selected gateway must support PROFINET.
The selected safety controller is minimum SIL2 compliant.
The PROFINET (Ethernet) network containing the PROFIsafe
communication must either be on a closed network or be protected from
open access with a security gate.
The assigned F-address for each device shall be unique within a
PROFIsafe naming island (network boundary).
The watchdog timeout must be set within the limits given in Table 3-1.
Verify that the iParameter for the device configuration (cf. Table 1-1) is set
correctly.
Table 3-1: Main PROFIsafe parameters used by the GS01
PROFIsafe
parameter
name
Format
Description
GS01 usage
F_S/D_Address
F_slave =
Usign_16
Unambiguously
assigned F-
device
1 - 65534
F_host =
Usign_16
Address of F-
host
1 - 65534
F_WD_Time
Time,
milliseconds.
Unsigned_16
Watchdog
timeout
15 - 24 seconds2
2
The GS01 will accept F_WD_Time settings up to 60 seconds. F_WD_Time setting above 24
seconds will invalidate the worst case response time including communication stated in table 8-1.
Worst case response time including communication equals 2 times F_WD_Time plus worst case
detector response time, which is 12 seconds.