Toxalert Tox-Refrig/ANA - Manual

GENERAL DESCRIPTION:
Toxalert’s refrigerant sensor/transmitter is designed for
use in conjunction with Toxalert and other standard 4 to
20 mA loop or voltage controllers.
The Tox-Refrig/ANA refrigerant sensor is a metal oxide
semi-conductor (solid state) cell with
extremely long element life. The Tox-Refrig/ANA
transducer requires 24 vdc power and has a 4 to 20 mA
output current which is proportional to the refrigerant
gas concentration. The cover plate inside the expolsion
proof enclosure contains: test points (which are
receptables for voltage meter probes) for measurement
of sensor signal, heater voltage; visual indicator for
sensor check; and potentiometers adjustments for zero
and span.
BACKGROUND:
ANSI/ASHRAE Standard 15-1994, Safety Code for Mechanical Refrigeration, lays out requirements
for the monitoring of mechanical equipment rooms containing refrigeration equipment. Paragraph
8.13.2 reads in part:
“Each machinery room shall contain a detector, located in an area where refrigerant from a leak
will concentrate, which shall actuate an alarm and mechanical ventilation in accordance with
8.13.4 at a value not greater than the corresponding TLV-TWA (or toxicity measure consistent
therewith).”
FEATURES
• Sensitivity check indicator • Current output may be read as a
• Low voltage circuits voltage during calibration
• 4 to 20 on A output signal • Sensor failure indicator
• Meets ASHRAE Std. 15-1994 • Interfaces directly to DDC systems
• Explosion Proof Housing
REFRIGERANT SENSOR MODEL TOX-REFRIG/ANA
REFRIGERANTS MONITORED
R-11 R-22 R-123 R-141b R-500
R-12 R-113 R-134a R-152a R-502
*Many Others*
TOXALERT ™
TOXALERT INTERNATIONAL, Inc., PO Box 159, Mound, MN. 55364 PHONE: (952) 472-4541 • FAX: (952) 472-4960
www.toxalert.com