VRAE
- Hand Held 5 Gas Surveyor |
|
Toxic & Combustible Gas
Monitor |
|
|
|
The VRAE is a hand held one-to-five gas monitor
with built-in sampling pump and optional data logging.
Sensors include new RAE dual range 0-100% Volume and 0-100% LEL, oxygen, and
three or four smart, interchangeable toxic sensors may be added. The dual
range combustible sensor can monitor explosive gases in an oxygen-free
environment at percent-by-volume levels.
The internal pump automatically shuts off and an alarm is activated if the
remote probe tubing crimps or liquid is sucked onto the field-replaceable
filter.
|
| Sensors include: |
• Carbon monoxide (CO)
• Hydrogen sulfide (H2S)
• Sulfur dioxide (SO2)
• Nitric oxide (NO)
• Nitrogen dioxide (NO2)
• Chlorine (Cl2)
• Ammonia (NH3)
• Hydrogen cyanide (HCN)
• Phosphine (PH3)
|
| Key
Features |
• Large, alarm-activated back light LCD display
• Visual flashing alarm
• Large keys are usable even with 3 layers of gloves
• 16,000 data points download to PC
• Snap-in, field replaceable rechargeable battery with up to 10 hours of
continuous operation
• Protected from portable radios
• Internal sample draw pump for quick response and remote sampling
• Smart battery charging with status indication and LED indicator
• 48 built-in correction factors for LEL sensors
• Rigid inlet probe & collection port
• 4 toxic sensor version
• Rubber protective boot
Applications
• Refineries and petrochemical plants
• Cable vaults, transformer stations
• Waste water treatment plants
• Marine and off shore oil wells
• Landfill operations
• Fire departments |
|
|
|
| Specifications: |
|
|
|
|
Intrinsic Safety: |
UL & cUL Class 1, Division 1, Group A, B, C,
D (US & Canada) EEx ia IIC T2 (Europe) Pending |
|
|
|
| Size: |
8.3" L x 3.0" W x 1.9" H (21 cm x 7.6 cm x
4.9 cm) |
|
|
|
|
Weight: |
20 oz with battery pack (568 g) |
|
|
|
|
Sensors: |
Catalytic sensor for combustible gas
Thermal conductivity sensor for percentage volume combustible gas
Electrochemical sensors for oxygen and toxic gases |
|
|
|
|
Battery: |
Rechargeable, snap-in, field replaceable 4.8V, 1.1 Ah NIMH
battery pack, 4 AA battery adapter |
|
|
|
|
Operating Hours: |
10 hours continuous |
|
|
|
|
Battery Charging: |
10 hrs charge through
built-in charger or an ext. battery charger |
|
|
|
|
Display: |
2-line, 16-digit LCD with LED back light automatically
turns on in dim light or alarm condition |
|
Keypads: |
1 operation and 2 programming keys |
|
|
|
| Direct
Readout: |
Instantaneous reading (up to 5 values) Oxygen as
percentage by volume
Combustible gas as percentage by volume or percentage of lower explosive
limit (LEL) |
|
|
|
|
Alarm: |
90 dB buzzer and flashing red LED to indicate exceeded preset alarms:
High: 3 beeps and flashes per second
Low: 2 beeps and flashes per second
STEL and TWA: 1 beep and flash per second
Alarms latching with manual override or automatic reset
Additional diagnostic alarm and display message for low battery and pump
stall |
|
|
|
|
Calibration: |
Two-point field calibration of zero and span
gas |
|
Datalogging: |
Optional 16,000 points (53 hours, 5 channels at one minute
intervals) download to PC with serial number of unit, user ID, site ID and
calibration date |
|
|
|
|
Datalogging interval: |
1 - 3,600 seconds
programmable |
|
Sampling Pump: |
Internal pump, flow rate 400
cc/minute
Automatic shut off at low flow condition |
|
|
|
|
Temperature: |
-4° F to 113° F (-20° C to 45° C) |
|
|
|
|
Humidity: |
0% to 95% relative humidity (non-condensing) |
|
|
|
| Specifications: |
|
Gas |
Nominal Range |
Extended Range |
Resolution |
|
|
Combustible |
0-100% LEL |
|
1% |
|
| |
0-100 VOL |
|
1% |
|
|
Oxygen (O2) |
0-30% |
|
0.1% |
|
|
Carbon Monoxide (CO) |
0-500 ppm |
1500 ppm |
1 ppm |
|
|
Hydrogen Sulfide (H2S) |
0-100 ppm |
500 ppm |
1 ppm |
|
|
Sulfur Dioxide (SO2) |
0-20 ppm |
150 ppm |
0.1 ppm |
|
|
Nitric Oxide (NO) |
0-250 ppm |
1000 ppm |
1 ppm |
|
|
Nitrogen Dioxide (NO2) |
0-30 ppm |
150 ppm |
0.1 ppm |
|
|
Chlorine (Cl2) |
0-10 ppm |
30 ppm |
0.1 ppm |
|
|
Hydrogen Cyanide (HCN) |
0-100 ppm |
100 ppm |
1 ppm |
|
|
Ammonia (NH3) |
0-50 ppm |
200 ppm |
1 ppm |
|
|
Phosphine (PH3) |
0-5 ppm |
20 ppm |
0.1 ppm |
|
|
