ALTAIR 4XR Multigas Detector

ALTAIR 4XR Multigas Detector
ALTAIR® 4XR Multigas Detector
Bid Specifications
Physical Characteristics
Case material
Environmental protection
Instrument shall not exceed 4.4” L x 3.0” W x 1.4” D (11.2 cm x 7.6 cm x 3.5 cm).
8 oz (228 g)
Instrument shall be a one-hand operation device.
Rubberized over-mold.
Instrument shall be approval agency-certified to IP68 protection levels for dust and
water ingress.
Instrument shall be capable of immersion in up to 6.5 ft (2m) of water for 1 hour.
Impact protection
Instrument shall exceed MIL-STD-810G repeated drop test requirements.
Instrument shall be capable of surviving an incidental 25-ft (7.62-m) drop.
Charcoal or phosphorescent (glow-in-the-dark) housing.
User Interfaces
Display type
Data access
Bluetooth connectivity
Monitoring Capability
Sensor configuration
Sensor missing alarm
Combustible gas display
Pressure compensation
Sensor life monitoring
Sensor types
Liquid crystal display (LCD) with large, easy-to-read characters and icons.
Unit must provide white backlight for low-light viewing.
Backlight time-out must be user-adjustable.
Unit must have no more than three switches or pushbuttons to operate.
There shall be no requirement to access hidden or internal switches for any
instrument operations. Buttons must be easy to operate when users wear gloves.
Access to data log and event log through infrared link to Windows-ready PCs.
Unit shall be capable of transmitting device and alarm data via Bluetooth wireless
connection to a gateway device, such as an Android-based cellular phone.
Instrument shall be capable of measuring up to four gases: combustible gas,
O2, and either H2S/CO, H2S-LC/CO, H2S-LC/SO2, or CO/NO2.
Ability to enable/disable individual sensor channels.
All sensor channels provide missing sensor alarm if sensor has been removed
and sensor channel has not been disabled.
Instrument shall be capable of displaying combustible gas reading as % Lower
Explosive Limit (LEL) or 0-5% CH4 by volume.
Instrument oxygen sensor shall have built-in pressure compensation.
Instrument shall be able to alert user when a particular sensor nears end of life
following instrument calibration.
Instrument shall be available with the following gas sensing options:
Gas type
0-100% LEL
1% LEL
0-5% Vol CH4
0.05% Vol CH4
0-30% Vol
0.1% Vol
0-1999 ppm
1 ppm
0-200 ppm
1 ppm
H2S Low Concentration 0-100 ppm
0.1 ppm
0-20 ppm
0.1 ppm
0-50 ppm
0.1 ppm
Basic Operational Features
Instrument buttons
Buttons on instrument must be clearly marked and intuitive.
Inadvertent shutoff
Instrument shall be designed to protect against accidental shutoff.
Zero adjustments
Instrument shall provide Fresh Air Setup (FAS) function at user’s discretion.
FAS function will not allow unit to zero out hazardous readings.
Zero adjustment lockout
Confidence signals
Periodic audible and visual signals shall indicate instrument operation.
User must be able to disable audible and visual signals.
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Bump test status indicators Instrument shall be capable of indicating its bump test status.
 Bump PASS: flashing green LED in top right corner and on-screen checkmark.
 Bump FAIL or expiration: flashing red LED in top right corner and no checkmark.
Last calibration date
Instrument power-on
Instrument must be able to display time and date.
User must be able to reset time and date without tools.
Instrument must be able to display last successful calibration date.
Power-on instrument button must be clearly marked.
Sensor Characteristics and Performance
Sensor life
Sensors shall have an expected life of four years.
End of life sensor indicator Instrument shall indicate when sensor is close to and at its end of life following
Typical t(90) response
Combustible sensor
< 10 seconds (methane); < 15 seconds (pentane)
O2 sensor
< 10 seconds
CO, H2S, SO2 & NO2 sensors < 15 seconds
All sensors
All sensors shall have built-in control circuitry, including drive circuits,
memory, microprocessor, and analog to digital converter to all for sensor level
control and compensation.
Oxygen sensor
Oxygen sensor shall be lead-free and use non-consumable chemical reaction.
Combustible sensor
CO/H2S sensor
CO/NO2 sensor
H2S/SO2 sensor
Combustible sensor must provide the following poison resistance at minimum:
 3000 ppm*hours to H2S
 90 ppm*hours to silicone
CO/H2S sensor shall be designed with extremely robust carbon filter for CO
channel to block interference. Sensor shall be designed for virtually no crosschannel interference. Sensor shall be designed for two-toxic gas detection in the
same physical envelope as a single gas sensor.
CO/NO2 sensor shall be designed with extremely robust carbon filter for CO
channel to block interference. Sensor shall be designed for two-toxic gas detection
in the same physical envelope as a single gas sensor.
H2S/SO2 sensor shall be designed to meet the measurement requirements for
lowered exposure limit guidelines for H2S. Sensor shall be designed for two-toxic
gas detection in the same physical envelope as a single gas sensor.
Advanced Display and Software Options
Industrial hygiene
Instrument shall have capability of displaying PEAK, STEL and TWA at user’s
discretion. User shall have ability to enable/disable STEL and TWA functions.
Instrument settings
All settable instrument parameters (alarm set points, expected calibration gas values,
etc.) shall be protected by user-selectable password.
Reset of functions
User shall be provided with capability of resetting PEAK, STEL and TWA
readings in the field.
Measurement units
Unit shall be capable of displaying both types of installed gas sensors
and measurement units for each gas.
Instrument Alarms
MotionAlert feature
Visual alarms
Audible alarm
Vibrating alarm
LEL latching alarm
Oxygen alarms
Alarm set points
STEL and TWA alarm
Battery alarms
Instrument shall offer MotionAlert feature. When activated, instrument shall
go into latch alarm when no instrument movement is detected for 30 seconds.
Instrument shall have InstantAlert feature to allow users to manually activate
all alarms if situation requires.
Visual alarms shall consist of bright, flashing LEDs on top and bottom of
instrument and positive indication on unit’s display for alarm type identification.
Audible alarm shall be rated at > 95 dB @ 1 ft (30 cm).
Unit shall be offered with standard vibrating alarm.
Combustible channel shall have non-resettable latching alarm when combustible
gas level exceeds 100% LEL or 5.00% CH4.
Oxygen channel shall have alarm set points for both oxygen deficiency
and oxygen enrichment.
Alarm set points must be user-settable.
Instrument shall provide audible, visual and vibrating alarms if STEL or TWA levels
are exceeded. User shall be able to select alarm set points for STEL and TWA.
Instrument shall provide user with 10-minute warning of battery power loss in all
environmental conditions. Power consumption alarms shall activate audible, visual
and vibrating alarms.
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Instrument Power
Run time
Power supply
Battery life indication
Charging cradle
Charger input voltages
Charging status
Calibration tools
Pushbutton calibration
Calibration cylinder mix
Calibration time
Automatic calibration
Bump test station
Sampling Systems
Sampling mode
Sampling system filters
Sample line length
Fluid ingress protection
Instrument continuous run time shall be 24 hours; when there is an active Bluetooth
connection between the detector and ALTAIR Connect, run time shall be 22 hours.
Instrument shall be equipped with a rechargeable battery.
Monitor shall provide icon depicting estimated remaining battery operation time.
Battery icon must always be visible when instrument is powered on.
Optional charging cradle shall be offered.
Chargers shall be available for 110VAC/220VAC and 12-24VDC.
Instrument or charging cradle shall provide visual indication of battery charging status.
Unit shall require no special tools for calibration other than calibration cap,
cylinder, regulator, and tubing to supply gas to instrument.
Calibration shall be easily performed using instrument’s pushbuttons.
Internal instrument access or tools shall not be necessary for calibration.
Calibration gas cylinders shall be offered in standard four-gas configurations:
1. Combustible, O2, CO and H2S
2. Combustible, O2, H2S and SO2
3. Combustible, O2, CO and NO2
Instrument shall be calibrated using one cylinder.
Span calibration shall not exceed 60 seconds.
Instrument shall be compatible with optional automated test and calibration
system that is able to store data. External system shall automatically recognize
and calibrate instrument and retain all calibration records.
Economical bump test station shall be offered to verify field performance.
Test station shall be capable of checking performance of the instrument and
store records.
In addition to standard diffusion mode, instrument must be available with
external powered pump probe option.
Pump must contain user-replaceable filters to prevent liquid and dust ingress.
Instrument must be capable of sample draw from up to 50 ft (15 m) away.
Sample probe must prevent water and debris from entering instrument.
Data logging (Instrument Data Storage)
Data logging
Instrument must be available with standard data logging.
Event log
Instrument shall record at least 500 events.
Data log capacity
Data log shall record and store data for an average of 50 hours (at one-minute
intervals) without overwriting existing information in normal use.
Gas record content
Data log entries shall contain as minimum date, time and record of peak and
average readings for each gas sensor (oxygen shall be recorded as maximum
and minimum intervals).
Atmospheric record
Instrument shall have provisions to record atmospheric temperature changes.
Record intervals
Time span between data records shall be user-selectable from 15 seconds
to 15 minutes.
Data retention
Instrument data stored in memory shall not be lost or corrupted in event of
sudden instrument power loss.
Activity record
Instrument data log shall record and be capable of reporting significant
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instrument events including:
• Gas and battery alarms
• Fresh air setups, sensor re-zeroing and calibrations
• Battery voltage and elapsed run time
• Reset of PEAK, Min, STEL, and TWA values
Environmental and Durability
Drop test
Can survive 25+ consecutive 4-ft (1.2 m) drops (MIL-STD-810G drop test).
Can survive incidental 25-ft (7.62-m) drop onto concrete.
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Normal operation: -10to 40C
Extended:-40to +60C
15-90% RH (non condensing) continuous
5-95% RH (non condensing) Intermittent
Maintenance & Warranties
Sensor replacement
Sensors shall be easily accessed and replaced by users if desired by purchaser.
No printed circuit boards should require removal to access sensors.
Warranty, consumables
Instrument shall have 4-year warranty on all components, including sensors
and battery.
Extended warranty
Optional extended warranty shall be offered for an additional year (five years total).
North America
USA / Canada CSA
Class I, Division 1, Groups A, B, C & D
Class II, Division 1, Groups E, F & G
Class III, Division 1
Ambient temperature: -40°C to +54°C; T4
CAN/CSA C22.2 No. 152 Combustible Gas Detection Instruments
C22.2 No. 152 Performance Ambient Temperature: -20°C to +54°C; T4
C22.2 No. 157 Intrinsic Safety Ambient Temperature: -40°C to +54°C; T4
Directive 2014/34/EU (ATEX): II 1G Ex ia da IIC T4 Ga, -40°C to +60°C, IP68
CE 0080
Directive 2014/30/EU (EMC): EN50270 Type 2, EN61000-6-3
Ex ia da IIC T4 Ga, -40°C to +60°C, IP68
Manufacturing system
quality approvals
Instrument manufacturer must be certified as compliant with ISO 9001 provisions.
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