Crowcon Tetra Portable Gas Detector

CO2
H2S
CI2
Tel: +44 (0)191 490 1547
Fax: +44 (0)191 477 5371
Email: northernsales@thorneandderrick.co.uk
Website: www.heattracing.co.uk
www.thorneanderrick.co.uk
NH3
O3
CO
Tetra
Personal Multigas Monitor
Oxygen, Toxic & Flammable Gases
O2
CH4
SO2
CO2
H2S
TETRA
Tetra is a single button, reliable and robust multigas monitor with
optional internal pump. Featuring intelligent sensor modules,
shockproof construction and self checking software, Tetra is
simple to use and assures reliable gas detection in the toughest of
environments.
Simple
• Single button operation
• Easy to read backlit display for gas readings and diagnostics
• Clear calibration due warning
• Rechargeable Li-ion battery gives 12 hours of continuous
operation
Alarms
• Loud 94dBA audible alarm
• Ultra bright dual red/blue visual alarm
• Vibrating alarm
Robust
• Rugged plastic housing with flexible internal assembly to resist
shock and vibration
• Durable over moulded rubber for added protection
• Water and dust resistant to IP65
Flexible
•
•
•
•
Optional built-in pump
Rechargeable and alkaline battery versions available
Compatible with Crowcon Portables PC Software
Fully interchangeable intelligent sensor modules
TETRA
Specification:
Tetra is a personal multigas monitor with an optional
built-in pump designed to reliably detect gas in the toughest
of environments.
Weight
Dimensions
498g (1.1lb)
Rechargeable
122 x 128 x 57mm (4.75 x 5 x 2.25 inches)
Non-rechargeable
134 x 128 x 57mm (5.25 x 5 x 2.25 inches)
Required ranges and alarms may vary by country and application and can
be configured as required. Each gas channel can have two instantaneous
alarm levels set. Toxic channels also have Time Weighted Average (TWA)
alarms.
Typical Response
Times (T90)
Flammable 20 s, Toxic gas 20 s, Oxygen 10 s
Audible Alarms
94dB
Multiple alarm sounds allow selection of distinctive
tones for different alarm levels
Visible Alarms
Dual colour red/blue flashing LED in gas hazard
Vibrating Alarm
Internal vibrating alarm
Display
128 x 64 graphic LCD with backlight, giving
simultaneous display for all gas channels. Graphic
symbols for battery (with proportional indication of
remaining operation time), pump operation, healthy
operation or fault warning. Start up indication when
calibration is due within 30 days, calibration overdue,
or service required.
Display Mode
Normal display for real time gas concentration levels.
Display recall for the Peak readings and TWA.
Datalogging
Timed datalogging: 50 hours at 1-minute data rate
(>3,000 data logs of 4 channels)
Event logging >1500 events
Battery Types
Rechargeable Li-ion battery
Non rechargeable pack 3xAA Alkaline cells
Operating Time
Rechargeable - 12 hour minimum based on pumped
four gas unit with flammable sensor
Sampling
Hand aspirator or internal electric sampling pump
Operating
Temperature Range
-20OC to +55OC (-4OF to +131OF)
Toxic and oxygen sensors are not rated for continuous
operation at high temperatures. Consult Crowcon
if operating temperature are likely to exceed 40OC
(104OF) for extended periods.
Humidity
20-90% RH
Ingress Protection
IP65
Gases and Ranges
Flammable gas calibration is available for methane, propane, butane,
pentane, hydrogen and ethylene as standard.
Tetra is also available in a safe area CO2 version offering 0-5% carbon dioxide
measurement.
Typical ranges and alarms
Gas
Range
Standard Alarm (UK)
Flammable
0-100% LEL
20% LEL
Oxygen
0-25%
19/23%
Hydrogen sulphide
0-100ppm
5ppm
Carbon monoxide
0-500ppm
30ppm
Sulphur dioxide
0-20ppm
1ppm
Chlorine*
0-20ppm
0.5ppm
Nitrogen dioxide
0-20ppm
1ppm
Ammonia
0-100ppm
25ppm
Ozone*
0-1ppm
0.1ppm
Hydrogen
0-1000pm
N/A
Hydrogen cyanide
0-25ppm
5ppm
Hydrogen fluoride
0-10ppm
1ppm
Phosphine
0-5ppm
0.2ppm
Fluorine
0-1ppm
0.1ppm
Approval Codes
Europe
Phosgene
0-1ppm
0.1ppm
International
Carbon dioxide
0-5%
0.5%
North America
ATEX II 2G Ex ia d IIC T3 Gb ( -20OC ≤ Ta ≤ 55Oc)
BASEEFA 03ATEX0193
IECEX Ex ia d IIC T3 Gb ( -20OC ≤ Ta ≤ 55Oc)
BAS04.0024
CSA UL/cUL Class I Division I Groups A, B, C, D, T3C
Safety Standards
Europe
EN60079-0, EN60079-11, EN60079-1, 94/9/EC
North America
UL913, CSA22.2, 152
Operation Standards
EN50270, EN50271, IEC61508, EN61779, EN45544
Gas Test Kit
* unpumped only
The Gas Test Kit provides a simple and convenient means of carrying
out either a pre-use (bump) test or a simultaneous four gas calibration
(flammable, oxygen, hydrogen sulphide and carbon monoxide only).
PC Interface and Calibration
Tetra can be routinely calibrated either manually or by using Crowcon
Portables PC software or Checkbox IMH packages, providing the user with full
configuration control, calibration and access to data and event logs files. An
IR link is available using a RS232/USB connection from the PC.
Charging Options
The Tetra can be supplied with:
•
Plug in charging power supplies with UK, EU or
US plug or in-line 110V/230V supply
•
10-way multicharger with 90-260V in-line power
supply with either UK, EU or US mains lead
•
Vehicle lighter socket charger for in-vehicle
charging
UK: 2 Blacklands Way, Abingdon Business Park, Abingdon, OXON, OX14 1DY
+44 (0) 1235 557700 sales@crowcon.com
US: 21 Kenton Lands Road, Erlanger, Kentucky 41018-1845
+1 859 957 1039 salesusa@crowcon.us
NL: Vlambloem 129, 3068JG, Rotterdam
+31 10 421 1232 eu@crowcon.com
SG:
PO1017 GB Issue 12 October 12
Calibration
Tetra can be routinely calibrated manually using
the menu, using Crowcon Protables PC software or
automatically using Checkbox IMH.
Accessories
Tetra is supplied with an integral belt/pocket clip.
Pumped units are supplied with a sampling kit
(flowplate and 2m (6ft) tubing).
Optional Accessories
Universal harness plate, shoulder strap, chest
harness, carry case, aspirator assembly (flow plate
bulb and 2m/6ft tubing), fixed and telescopic sample
probes and an in-line water trap.
Tel: +44 (0)191 490 1547
Area+44
reserved
for distributor
stamp
(0)191
477 5371
Fax:
Email: northernsales@thorneandderrick.co.uk
Website: www.heattracing.co.uk
www.thorneanderrick.co.uk
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