Toxalert GVU-NO2 - Manual

DATA
SHEET
NITROGEN DIOXIDE SENSOR MODEL GVU-NO
2
DIESEL EXHAUST GAS DETECTOR
TYPICAL INSTALLATIONS:
• Parking Garages • Vehicle Maintenance & Storage
• Bus Garages Highway Departments
• Fire Stations Utilities
• Warehouses Public Works
• Car Dealers • Tunnels
FEATURES:
• Power on indication
• High NO
2
Indication
• Fault Indicator
• Low voltage class two (2) wiring
• Convenient diagnostics
• Simple maintenance
• Operating range meets OSHA standard
GENERAL DESCRIPTION:
The model GVU-NO
2
nitrogen dioxide sensor is designed to interface
with Toxalert International GVU series control units. The Model GVU-
NO
2
utilizes an electrochemical sensing element and is designed for
ambient monitoring applications. It is intended for use in fixed
monitoring installations, and therefore continuous operation. The
GVU-NO
2
has an effective range of 0-10 ppm. The sensor module
requires a four-wire connection from a controller that provides a
nominal 24VDC power source, common and return signal input. The
GVU-NO
2
has indicators for power on, fault status and high NO
2
.
The Toxalert Nitrogen Dioxide (NO
2
) Transmitter combines safety and
energy savings. A common producer of NO
2
is diesel engine exhaust.
Diesel exhaust is a know cancer causing agent as reported in the U.S.
Department of Health and Human Services’ Current Intelligence
bulletin 50 dated August 1988. An electrochemical cell is required to
measure such small amounts of NO
2
. The device’s sensor is capable of
measuring NO
2
in increments of 0.1 ppm.
TOXALERT INTERNATIONAL, INC., P.O. BOX 159, MOUND, MINNESOTA 55364 (952) 472-4541 FAX (952) 472-4960
Visit our website at www. toxalert. com
TM TOXALERT
Model GVU-NO
2