Owner's Manual

GDX-350 Sensor Transmitter
P/N: 5600-9001 Rev 2 15
1.9. General Specifications
Category General Specifications
Product Type
GDX-350 transmitter/monitor for various gases.
Coverage
Single sensor, 40 foot diameter
Front Panel
5 Indicator lights; AL1, AL2, Fail, In Cal, and RS-485 TXD and RXD
64 x 128 Pixel LCD graphic display for gas readings, 30 minute trend, bar
graphing, engineering units, and backlight
Housing
Instrument enclosure suitable for Class 1, Div 1 and 2, Gr. B, C, and D
Security mode
Locks out critical parameters
Calibration
Non-intrusive calibration
4-20 output Signal
3-wire, 4-20 mA. Max loop resistance is 750 ohms (@24 VDC)
Alarm relays
Three configurable form C (SPDT) relays rated for 5 amp at 30 VDC or
240 ~VAC RESISTIVE.
Relay 1 and Relay 2 level alarms are configurable for HIGH or LOW trip, for
normally energized (Failsafe) or normally de-energized and for latching or non-
latching.
Relay 3 is always normally energized for failsafe operation so loss of power to
the unit will be indicated as a “FAULT” condition.
Communications
RS-485, Modbus optional, 4-20 mA standard
Power Safety Mode
Fully automatic system reset. All programmed parameters retained
Operating Temp
-55 to 60 °C (-67 to 140 °F)
Ambient Humidity
5% to 90% RH (non-condensing)
Power
10 – 30 VDC, 250 mA (@ 24 VDC)
Certification
CSA certified for Division 1 and 2 hazardous area installations for explosion
proof Class 1 Groups B, C, and D, and intrinsically safe (GDX-350/EC 2-wire
loops only) Class 1 Groups A, B, C, and D.
Designed to meet CSA C22.2 No.152 for Combustibles Monitors and ISA
92.0.01 Part 1 for Toxic Monitors (excludes ammonia). Ammonia is for use in
non-classified areas only. ATEX: CE, EExd IIB + H2, T5
Warranty
2 years from date of shipment, consumables not included
RF Specifications
Power Supply: Integral non-rechargeable 3.6 volt 19AH lithium D
cell battery.
Power Consumption: <2mA during “sleep” mode, 40mA during “receive
beacon” mode, up to 1 amp during 1 watt “transmit”
mode. Transmit power may be set from 10mW to 1
watt.
Transmit (TX) Power: 30dBm at highest 1W power setting. Transmit power
may be set from 10mW to 1 watt
Receive (RX) Sensitivity: -100 dBm
Radio Frequency: Hopping occurs between 902 MHz and 928 MHz.
Memory: Non-volatile E
2
memory retains configuration values
in the event of power outages.