User manual

Arjay Engineering www.arjayeng.com 1 [phone] (Canada)
EC-GOLD
for General Locations Use
Plug-in wiring terminal block
for quick installation and maintenance
.
Alodized protective aluminum housing
with electronics filter screen
1/2” and 3/4" knockouts, front and
back for easy installation.
LED alarm status indication
including flashing fault alarm.
External push button for calibration
means the user is not required to open
the unit to calibrate(behind shield).
Shielded sensor port for plug-in sensors
External Push-to-Test for CO sensor
(behind shield)
External calibration port for easy
application of Test Gas (used with on-
board CO sensor)
The EC-GOLD series of sensor transmitter has been designed specifically for use
with the following electrochemical toxic sensors:
carbon monoxide (CO) 0-500 ppm # E90507
nitrogen dioxide (NO
2
) 0-20 ppm # E90510
ammonia (NH
3
) 0-100 ppm # E90526
hydrogen sulfide (H
2
S) 0-100 ppm # E90527
chlorine (Cl
2
) 0-10 ppm # E90528
Electrochemical sensors offer the advantage of selective response to the target gas
while minimizing nuisance alarms from interference gases.
The EC-GOLD may by used as a stand-alone 4-20 mA (or 2-10 vdc) transmitter for use with alarm panels or building automation systems. An
optional SPST DC voltage to ground contact is available for activation of remote controls and relays. The EC-Gold can be used in conjunction
with any Enmet master control panel (Gas Alert, 2000 CAP Scanner, ISA 66RLU, or Central Control Panel(CCP))
Plus !
These features are standard with the Carbon Monoxide sensor:
-daily self test using an internal reactive gas to confirm sensor response
-fault acknowledgement on sensor failure or expiration
-manual Push-to-Test by external button to confirm operation
-3 year sensor life guarantee
-single point calibration
your representative
Specifications
Input Power: 15-24 VDC @ 0.100A max.
Output Signal: 4-20 mA non-isolated or 2-10 vdc proportional
RS-485 Modbus to Scanner or third party system
VDC threshold signals to Enmet Panels
Optional VDC to Ground contact
Operating Temperature: -20 C to + 50 C
Enclosure: Type 1, 197mm (7.75") x 76mm (3") x 76mm (3")
Accuracy: +/- 2% of reading
Humidity: 90% maximum with no condensation