Duran Electronica STANDGAS HC Instruction Manual
STANDGAS HC &HC PRO
STAND-ALONE DETECTORS FOR EXPLOSIVE GASES
Installation &User Manual
© 2011 DURAN ELECTRONICA S.L. - All rights reserved · www.duranelectronica.com
I-manSTANDGASexp-v02
Certificate nº FS82426
3
I-manSTANDGASexp-v02
pages
1. PRESENTATION ............................................................5
2. RELAY MODULE ...........................................................6
3. CONNECTIONS.............................................................6
4. PROGRAMMING AND GAS GROUP SELECTION ....................................7
5. EXTERNAL OPTICAL INDICATIONS: messages & functioning ...........................9
6. TEST & RECALIBRATION......................................................9
7. TECHNICAL CHARACTERISTICS.................................................10
8 GUARANTEE ..............................................................10
TABLE OF CONTENTS
4© 2011 DURAN ELECTRONICA S.L.
All rights reserved · www.duranelectronica.com
5
I-manSTANDGASexp-v02
1. PRESENTATION
STANDGAS HC & HC PRO are stand-alone detectors for explosive gases using catalytic technology (pellistor) for a detection
range from 0 to 100% LEL. Silicon vapours resistant sensors (HDMS)
Available formats and gases
STANDGAS HC
Available for natural gas-methane, butane-propane, and hydrogen.
STANDGAS HC PRO
Available for natural gas-methane, hydrogen, butane, propane, heptane, hexane, pentane, methanol,styrene,
ethane, ethanol, ethylene, propylene, acetone, ammonia, acetylene, cyclo-hexane, cyclo-pentane,
dioxane, butyl acetate, ethyl acetate,acetic acid, iso-butyl alcohol, iso-propyl alcohol, decane, benzene,
octane, methyl ethyl ketone, nonane, propanol, toluene, xylene. Other gases, consult.
Other features
• Optical indications for sensor fault.
• Programmable alarm relay.
• Selection of gas to detec using a jumper.
• Silicon vapours resistant sensors (HDMS).
Do not use these detectors in environments where there might be presence of hydrogen sulphide, fluorine, methyl chloride,
trichloroethylene, sulphur dioxide, silicon vapours or sulphuric acid: the presence of these gases could either inhibit
sensor’s response or damage it.
6© 2011 DURAN ELECTRONICA S.L.
All rights reserved · www.duranelectronica.com
2. RELAY MODULE FUNCTIONING
The stand-alone detectors STANDGAS HC and STANDGAS HC PRO are provided of a relay output with the following
parameters:
1 Idle mode relay. It allows to select an activated relay without alarm, or a deactivated relay.
2 Relay disconnection type. It allows to select the instantaneous disconnection of the relay once alarm condition is over or
if retard selected is used.
3 Relay disconnection retard. It allows to select a retard or the instantaneous disconnection since the level selected has
disappeared as an alarm condition. It has no effect if INSTANTANEOUS was previously selected.
4 Relay alarm activation level. It allows to select, in between two, the relay actuation level, local and independently.
PROGRAMMING DEFAULT:
Activated, instantaneous –no retard-
20% LEL alarm
3. CONNECTIONS
SW1 ON position OFF position Programming
1 Activated Deactivated Initial status: Idle mode relay1
2 Instantaneous Retarded Relay disconnection type2
3 5min. retard 15m retard Relay disconnection retard3
4 Alarm 20% L.E.L. Alarm 50% L.E.L. Relay alarm activation level4
7
I-manSTANDGASexp-v02
4. PROGRAMMING AND GAS GROUP SELECTION
STANDGAS HC & HC PRO detectors are provided with a microprocessor for functioning control. This is a great advantage
due that, through software and adequate algorithms, these detectors can be reprogrammed at installation for auto-
calibration and sensitivity auto-adjust without using gas. In addition, it allows selecting among an extensive list of gases
without ordering new detectors or storing detectors calibrated for different gases.
Remove JP3 located at the vertical module with the detector powered. Watch carefully the external LED blinking (see table
1 below).
When the number of LED blinking fits in with the gas group to be detected, place JP3 jumper again and watch that the
corresponding LED confirms its memorized group position by the number of blinkings.
Note: If JP3 is removed and after 90s no group has been chosen, the last memorized group will be automatically chosen.
Default programming is GR1.
Table 1
STANDGAS HC
GR1 R1 Blink
GR2 RR 2 Blink
GR3 RRR 3 Blink
GR4 RRRR 4 Blink
GR5 RRRRR 5 Blink
Group Gas Relative response Installation height
1
Methane
100%
30 cm from ceiling 5
Hydrogen 30 cm from ceiling 5
Natural gas 30 cm from ceiling 5
2
Butane
55%
30 cm from floor
Propane 100 cm from floor
8© 2011 DURAN ELECTRONICA S.L.
All rights reserved · www.duranelectronica.com
STANDGAS HC PRO
Group Gas Relative response Installation height
1
Methane
100%
30 cm from ceiling 5
Hydrogen 30 cm from ceiling 5
Methanol 100 cm from floor 4
2
Ethane
75%
100 cm from floor 4
Ethanol 100 cm from floor 4
Ethylene 100 cm from floor 4
Propane 30 cm from floor
Propylene 30 cm from floor
3
Acetone
55%
30 cm from floor
Ammonia 30 cm from floor
Cyclo-Hexane 30 cm from floor
Cyclo-Pentane 30 cm from floor
Dioxane 30 cm from floor
Ethyl Acetate 30 cm from floor
Iso-Propyl Alcohol (IPA) 30 cm from floor
Methyl Ethyl Ketone (MEK) 30 cm from floor
Butane 30 cm from floor
Hexane 30 cm from floor
Pentane 30 cm from floor
Propanol 30 cm from floor
Propyl Alcohol 30 cm from floor
4
Butyl Acetate
42%
30 cm from floor
Iso-Octane 30 cm from floor
Heptane 30 cm from floor
Toluene 30 cm from floor
Xylene 30 cm from floor
Benzene 30 cm from floor
5
Acetic Acid
25%
30 cm from floor
Decane 30 cm from floor
Iso-Butyl Alcohol 30 cm from floor
Nonane 30 cm from floor
Styrene 30 cm from floor
Iso-Butyl Methyl Ketone 30 cm from floor
9
I-manSTANDGASexp-v02
5. EXTERNAL OPTICAL INDICATIONS: messages & functioning
These detectors are provided with a LED to indicate the following states:
• Switch off: Detector without tension.
• Periodical blink: Periodicity will correspond to the assigned number of the selected detection group.
• 6 blinking burst: Alarm state -activated relay -.
• 1s interval ON/OFF: Sensor fault.
6. TEST & RECALIBRATION
All detectors manufactured by DURAN ELECTRONICA have been calibrated at factory with target gas. Therefore, it is neither
required, nor recommendable recalibration once installed.
ZERO OUTPUT VERIFYING
Before proceeding the detector should be operating for 1 hour minimum in a clean ambient, being sure that there are no
presence of gases affecting to the detector.
In case this condition is not fulfilled, the detector must be subjected to a concentration of pure nitrogen with a 0.5l/min
flow for 2 minutes minimum using the optional CECALIBR adaptor. Then proceed as indicated next:
1. Connect a measuring instrument between S+ and S- terminals, and thus tension must be 000V DC. If it is
necessary, make an adjustment with the ZERO potentiometer until obtaining that measurement.
CALIBRATION WITH GAS
1. Set the detector for Group 1, as it is described on page 7 (STANDGAS HC) and 8 (STANDGAS HC PRO).
2. Insert CECALIBR adapter into the detector and release a precise mixture of methane, at 2,5% v/v, equivalent
to 50% LEL, with a 0,5l/min flow and adjust the GAIN potentiometer until the measuring instrument
indicates 1.0V DC between TP+ and TP- terminals.
3. Afterwards, do not forget to reprogram the detector again for the required gas group, as described on
page 7 (STANDGAS HC) and 8 (STANDGAS HC PRO).
10 © 2011 DURAN ELECTRONICA S.L.
All rights reserved · www.duranelectronica.com
7. TECHNICAL CHARACTERISTICS
8. GUARANTEE
STANDGAS detectors are guaranteed against any manufacturing defect for a 1 year period after the acquisition of the
equipment. If, during this period of time, any abnormality were detected, please inform your provider or installer.
Guarantee covers the full repair of the equipment which the DURAN ELECTRONICA Technical Department considers to
be defective, with the purpose of bringing them back to their normal use. This warranty will be valid always when the
equipment has been installed by a competent person, and always following the specifications contained in this manual. Its
negligent installation or use will exempt DURAN ELECTRONICA from any responsibility on the damages caused to objects
and/or people, and the fulfillment of the terms of this warranty.
Guarantee does not include: installations, periodical tests and maintenances, damages caused by inadequate handling,
inappropriate use, negligence, inadequate power or equipment abandonment, tension deviations, defective installations and
other external causes, repairs or amendments made by non authorized personnel by DURAN ELECTRONICA, transportation
costs of the equipments.
DURAN ELECTRONICA reserves the right to modify this manual without prior notice.
STANDGAS HC STANDGAS HC PRO
Technology Catalytic sensor and microprocessor Catalytic sensor and microprocessor
Power supply 10V to 30V DC (2 wires +/- ) 10V to 30V DC (2 wires +/- )
Max. consumption 130mA to 12V DC with relay activated 110mA to 12V DC with relay activated
Loop max. resistance 250Ω250Ω
Max current output 21.3 mA (Tip) 21.3 mA (Tip)
Fault loop current < 2mA < 2mA
Exp gases measurement range 0-100% LEL (5% methane), linear in full scale 0-100% LEL (5% methane), linear in full scale
Resolution ±1% L.E.L. of the measuring range ±1% L.E.L. of the measuring range
Zero deviation ± 10mV/year ± 7mV/year
Span deviation ± 10% L.E.L year ± 9% L.E.L year
Stabilization time < 15 minutes -all specifications- < 15 minutes -all specifications-
H2S resistance Yes (tipical 1000ppm/hour) Yes (tipical 1000ppm/hour)
Response time T50/T90 6s / 10s resp. 3s / 8s resp
Useful life (MTBF) 4 years approximately 4 years approximately
Maintenance period Annual – recommended- Annual – recommended-
Temperature range -10ºC to +50ºC -10ºC to +50ºC
Humidity range 0 to 95% HR without condensation 0 to 95% HR without condensation
Atmospheric pressure limit 80 to 110 kPa (0.8 to 1.1 bar) 80 to 110 kPa (0.8 to 1.1 bar)
Fault sensor optical
indications External External
Status optical indications External External
Relay programmable alarm
1 programmable relay output module in between
2 levels (20% LEL / 50% LEL), instant/retarded
disconnection, retard disconnection programming
and initial relay idle state/activated.
1 programmable relay output module in between
2 levels (20% LEL / 50% LEL), instant/retarded
disconnection, retard disconnection programming
and initial relay idle state/activated
Coverage area 16 m2approx. 16 m2approx.
Protection grade IP65 IP65
Box material Makrolon & ABS Makrolon & ABS
Cable Diameter 6-10mm2-for maintenance IP65- 6-10mm2-for maintenance IP65-
Dimensions (mm) & weight (gr)
IP65 120x160x60 / 288 120x160x60 / 288
11
I-manSTANDGASexp-v02
c/ Tomás Bretón, 50
28045 MADRID, España
Tel: +34 91 528 93 75
Fax +34 91 527 58 19
duran@duranelectronica.com
www.duranelectronica.com I-manSTANDGASexp-v02
Certificado nº FS82426
This manual suits for next models
1
Table of contents
