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Ventis™ LS Product Manual
The zero, calibration, and bump testing tasks are in-field enabled or in-field disabled in the configuration process.
This permits or denies access to these functions from the gas monitoring mode. When any of these options is
enabled, it is accessible to all monitor users. In gas monitoring mode, a series of presses on the ON/OFF/MODE
button gives the user access to the following screens and processes in the order shown.
•
Gas Monitoring Screen
•
Days Since Calibration
•
Zero Initiate (if in-field enabled)
Calibration Apply Gas Screen (if in-field enabled)
o
•
Bump Test Initiate (if in-field enabled)
•
Peak Readings
•
TWA Readings
•
STEL Readings
The monitor is capable of performing two types of calibration, and this option is set in configuration mode. The
calibration type selected also determines the monitor's bump test type. With a "quick" calibration, the monitor is set to
calibrate and bump test all installed sensors simultaneously. With a "standard" calibration setting, these tasks are
completed independently for each installed sensor in the order shown below.
1.
Oxygen sensor*
2.
Toxic sensor 1
3.
LEL sensor
4.
Toxic sensor 2
*If set to the default value of 20.9% or 21%, the Oxygen sensor calibrates during the zero process and toxic 1 is the first to calibrate in the
calibration process.
The Ventis LS monitor can be calibrated with any of the accessories listed.
•
Calibration cup and/or tubing shipped with the monitor (see instructions below)
•
DS2 Docking Station for Ventis LS (consult the docking station manual for instruction)
Instructions
Calibration and Bump Testing with Calibration Cup and/or Tubing
Read all instructions before beginning: notices, supply check-list, gas cylinder preparation, and the complete screen-
by-screen walk-through of the zero, calibrate, and bump test processes. Each process is presented in the order in
which it is accessible from gas monitoring mode.
NOTICES
→ Industrial Scientific recommends that full monitor calibration be performed, using a known certified
concentration(s) of Industrial Scientific calibration gas(es), to prepare the monitor for first time use, and
monthly (at a minimum) thereafter, to help ensure monitor accuracy.
→ Industrial Scientific also recommends that each monitor be zeroed and bump tested before each use with a
known certified concentration(s) of Industrial Scientific calibration gas(es).
→ Read ALL requirements and instructions outlined below, including the screen-by-screen process description,
before beginning the zero, calibration, or bump testing processes.
→ Only qualified personnel should zero, calibrate, or bump test a monitor.
→ Zero, calibration, and bump testing functions should be performed in a fresh air environment known to be
nonhazardous.
→ After calibration or bump testing, or after terminating either process, stop the flow of gas.
Supplies
Calibration cup*
Calibration tubing 2 feet in length*
Calibration gas cylinder and regulator** (customer supplied)
*Shipped with monitor.
**Industrial Scientific recommends 1) the use of regulators with a flow rate of .5 LPM, and 2) the monitor be calibrated or bump tested using a positive
flow regulator, NOT a demand flow regulator.
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© Industrial Scientific Corporation
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