Honeywell VA201T User Manual

Calibration Handbook
122 Sensepoint Toxic
Wind Speed
(mph)
Measured Speed
Using Pitot (m/s)
Test Gas Flow Rate
(L/min) Series 2000
10 4.4 1.5
15 6.7 1.5
20 8.9 1.5
25 11.1 1.5
30 13.4 1.5
35 15.6 1.5
40 17.8 1.5
5. Adjust the span at the control card to read the concentration of the gas applied.
6. Remove the Flow Housing and gas supply.
Test Gas Concentrations
Gas Range
Recommended
Test
Concentration
Application
Time
Operating Temp.
Min. Max.
H2S 0 to 20ppm 10ppm 3 min -20°C +50°C
H2S 0 to 50ppm 20ppm 3 min -20°C +50°C
H2S 0 to 100ppm 50ppm 3 min -20°C +50°C
CO 0 to 100ppm 50ppm 3 min -20°C +50°C
CO 0 to 200ppm 100ppm 3 min -20°C +50°C
CO 0 to 500ppm 250ppm 3 min -20°C +50°C
Cl2 0 to 5ppm 3ppm 10 min -20°C +50°C
Cl2 0 to 15ppm 10ppm 10 min -20°C +50°C
O2 0 to 25% V/V 19% V/V 1 min -15°C +40°C
NH3 0 to 50ppm 25ppm 10 min -20°C +40°C
NH3 0 to 1000ppm 500ppm 10 min -20°C +40°C
H2 0 to 1000ppm 500ppm 3 min -5°C +40°C
H2 0 to 10000ppm 3000ppm 3 min -5°C +40°C
SO2 0 to 15ppm 10ppm 5 min -15°C +40°C
SO2 0 to 50ppm 20ppm 5 min -15°C +40°C
NO 0 to 100ppm 50ppm 5 min -5°C +40°C
NO2 0 to 10ppm 5ppm 5 min -15°C +40°C
NO2 0 to 50ppm 20ppm 5 min -15°C +40°C
If it is necessary to adjust the sensor set up because insufficient span or zero adjustment is available at the
control card, follow these instructions:
1. Open the sensor enclosure by unscrewing the sensor cap assembly from the sensor main body and
replace with a Gassing Cap (P/N: 2106D2114) and Flow Housing (P/N: 02000-A-1645).
2. If the output, with no gas applied, is not zero then adjust the zero potentiometer through the Gassing Cap
access holes (see following diagram) to obtain a zero indication.
3. Connect a gas cylinder of known gas concentration of approximately 50% FSD to the Flow Housing using
nylon or PTFE tubing.

Honeywell VA201T Specifications

General

Brand	Honeywell
Model	VA201T
Category	Safety Equipment
Language	English