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EC-Gold Dual
Gas Concentration Transmitter
User Manual
Technical Support
Continental North America Toll Free 1-(800) 387-9487
Ph: +1 (905) 829-2418 Fx: +1 (905) 829-4701
A Product of Arjay Engineering Ltd.
Oakville, Ontario, Canada www.ArjayEng.com www.EnmetGasDetection.com
ECGOLDDUALUM12.doc Rev: 1.2
Model: EC-GOLD Dual
TABLE OF CONTENTS
1.0
INSTRUMENT OVERVIEW .............................................................................. 3
1.1
Features ................................................................................................ 3
1.2
Description ............................................................................................ 3
1.3
Specifications ........................................................................................ 6
2.0
INSTALLATION ................................................................................................. 7
2.1
Mechanical Installation .......................................................................... 7
2.2
Electrical Installation .............................................................................. 8
3.0
STARTUP AND CONFIGURATION .................................................................. 11
3.1
Notes On The User Interface ................................................................ 11
3.2
Startup ................................................................................................... 12
3.3
Menu Configuration ............................................................................... 12
3.3.1
Normal Operating Menu Flow Chart ......................................... 13
3.3.2
Sensors Setup Menu Flow Chart ............................................. 14
4.0
CALIBRATION .................................................................................................. 15
4.1
Calibration Notes ................................................................................... 15
4.2
Calibration Procedures (Full Feature Mode) ......................................... 15
4.3 Calibration Procedures (Standard Feature Mode)................................. 18
4.3.1
CALIBRATION NOTES ......................................................................... 18
4.3.2
SINGLE POINT CALIBRATION ............................................... 18
5.0
PUSH TO TEST FEATURE .............................................................................. 19
6.0
TROUBLESHOOTING ...................................................................................... 20
7.0
CONTROLLER SETTINGS SHEET .................................................................. 21
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Model: EC-GOLD Dual
ECGOLDDUALUM12.doc Rev: 1.2
1.0 INSTRUMENT OVERVIEW
1.1 Features
Gas monitor for a large variety of gas types.
Can monitor up to 4 different sensor inputs at one time
Port 1: on board CO (Carbon Monoxide) Electrochemical
Port 2: on board electrochemical for NO2 (Nitrogen Dioxide), CL2 (Chlorine),
H2S (Hydrogen Sulfide), NH3 (Ammonia) and others.
Port 3: integral or remote MOS broad range toxic and combustibles
Port 4: remote 4-20 mA input transmitters
Carbon Monoxide sensor has expected life of
5 years min. (3 year guarantee)
Other sensors have expected life of 2 years (1 year guarantee)
Output may be user selectable for analog (4-20mA / 2-10V) or Arjay’s Discrete Voltage
Output (DVO).
Convenient pushbutton calibration.
User selectable for Single or Dual Point calibration
High/High, High, Low, and optional System Fault Indication in place of High/High alarm
User selectable High and Low Alarm levels
Modbus protocol via RS-485 for access by Arjay/Enmet Central Access Panel or compatible system
Can be used as a stand alone gas detector or can be used with other EC-Gold sensors for interfacing with an Arjay Central control panel or customer system
User specified custom features might be added by contacting Arjay Engineering Ltd.
1.2 Description
The EC-Gold Dual can be used a Stand Alone gas detector with relays and outputs available to communicate with remote devices such as alarms, fans and building automation systems.
The standard model provides 3 relays, a 4-20 mA output and an RS-485 interface. The full feature model provides the addition of an LCD display of concentration, buzzer with silence, and keypad interface.
The 4-20 mA output will represent the peak value determined from all sensor inputs based on the percentage concentration of their range. For example, assume the detector has a CO sensor calibrated for 0-200 ppm and an NO2 sensor with a calibrated range of 0-20 ppm. If the
CO sensor reads a 20ppm and the NO2 sensor reads 10ppm, the 4-20 mA output will be 12 mA. This will represent that the NO2 is at 50% of its range while the CO is only at 10% of its range. An analog output cannot be averaged among sensors. This would provide outputs not representative of actual conditions and could result in unsafe conditions.
The relays are common to all sensors and are set to ppm or % LEL values specific and proper for each sensor type.
The LCD display will provide a real time reading of the ppm or % LEL concentrations of all sensors.
The EC-Gold Dual can be used with multiple sensors connected to any Arjay/Enmet Control panel. The following are examples of typical methods of installing the EC-Gold Dual.
Figure 1.0: The EC-Gold Dual can be a Stand Alone detector to interface with fans or alarms using the relays or analog outputs.
Figure 1.1: EC-Gold Dual can be combined with other EC-Gold Dual or EC-Gold sensors to the
ISA 66 RLU panel using the cost effective Arjay/Enment DVO signal. Ideal for multi-zone installations where a central control panel is desirable.
- 3 -
Model: EC-GOLD Dual
ECGOLDDUALUM12.doc Rev: 1.2
Figure 1.2: EC-Gold Dual can be combined with other EC-Gold Dual or EC-Gold sensors to the
ISA Gas Alert Max panel using the cost effective Arjay/Enment DVO signal. Ideal for single or multi-zone installations where the control panel is desirable at each fan location or in central location.
Figure 1.3: EC-Gold Dual can be combined with other EC-Gold Dual or EC-Gold sensors to the
PG-2000 panel using the RS-485 communication to address each sensor. Ideal for applications that require more complex zone control or analog outputs for VFD fan control.
Dual 3/4" & 1/2"
Knock-Outs for rear entry cabling.
CO 0
CO 0
NO
C
NC
NO
C
NC
NO
C
NC
3
4
5
1
2
6
7
8
9
Buzzer has built-in ACk.
EC
Sensor
MOS Sensor Remote XMTR
CANADA LTD.
LCD www.arjayeng.com
EC 2
MENU
EC 1
SELECT
WITHOUT COVER
EC-Gold Dual Stand Alone Application
Figure 1.0
FRONT COVER
- 4 -
Model: EC-GOLD Dual
BUZZER
Zone 1
Relays
ECGOLDDUALUM12.doc Rev: 1.2
Zone 5
Relays
3 Wire Discrete Voltage Output shielded connection
ZONE 1
ZONE 2
ZONE 5
CANADA LTD.
LCD www.arjayeng.com
EC 2
MENU
EC 1
SELECT
EC-Gold Dual
EC-Gold Dual RLU Application
Figure 1.1
3 Wire Discrete Voltage Output shielded connection
To other sensors
EC-Gold
To other sensors
Relays
R1
R2
R3
R4
STATUS
CAL
1
4
2
5
3
6
SETUP
7
.
0
8 9
ENTER www.arjayeng.com
PG-2000 Scanner
CANADA LTD.
LCD www.arjayeng.com
EC 2
MENU
EC 1
SELECT
EC-Gold
EC-Gold Dual
EC-Gold Dual Gas Alert Application
Figure 1.2
24 VDC 2 Wires
2 Wires RS-485 Network
To other sensors
Up to 128 Transmitters on the Network
4-20 mA Output
Up to 80
Sensors
4-20 mA Output
CANADA LTD.
LCD www.arjayeng.com
EC 2
MENU
EC 1
SELECT
EC-Gold Dual
EC-Gold Dual PG-2000 Network Application
Figure 1.3
- 5 -
EC-Gold
Model: EC-GOLD Dual
1.3 Specifications
ECGOLDDUALUM12.doc Rev: 1.2
OPERATION
The EC-Gold Dual is a multi-sensor gas detector. A variety of gases may be sensed when fitted with the appropriate sensors.
PUSH-TEST FEATURE On demand using the Push to Test pushbutton.
LCD DISPLAY/KEYPAD 2 x 8 LCD display showing ppm concentrations and calibration menus
USER INTERFACE
Calibration and setup Keypad, LCD, pushbutton, and LED status lights.
Push-Test Pushbutton.
Network RS-485 modbus protocol. Used either with the ARJAY/ENMET
CAP unit or via third party, modbus compatible systems.
INPUTS
Port 1 (EC1):
Port 2 (EC2):
Port 3:
on board CO (Carbon Monoxide) Electrochemical
on board electrochemical for NO2 (Nitrogen Dioxide), CL2
(Chlorine), H2S (Hydrogen Sulfide), NH3 (Ammonia) and others.
integral or remote MOS broad range toxic/combustibles and catalytic combustibles
remote 4-20 mA input transmitters Port 4:
OUTPUTS mA output
DC Voltage output
PERFORMANCE
When configured for Analog output: 4-20mA into 700 ohms max.
When configured for Voltage output: 2-10V proportional to calibrated range. mA / Voltage output 0.1% resolution – non-isolated.
RLU DV output When configured for RLU Discrete Voltage Output mode:
Alarms
0V = No Alarm, 1.8V = Low Alarm, 2.8V = High Alarm, 10V =
Sensor Fault. (Sensor Fault only detected with CO sensor).
3 alarms (High/High, High, Low) and Optional System Fault May be factory selected
Alarm Indication High (Red), Low (Yellow), and a 2 color LED for Sensor Fault (Red) and No Alarms (Green). The 2 color LED is also used to flash calibration errors (Red for ~2 seconds after an unsuccessful calibration).
Accuracy ±2% of Full Scale Range (the accuracy is limited by the sensors – the electronic accuracy is better than 1%.
POWER
12VDC - 24VDC @ 200mA max OR 24VAC INPUT (See JP1
Jumper in Fig 2.1)
Require extra current if use external transmitter
MECHANICAL SPECIFICATIONS
Enclosure
Dimensions
Nema 1 wall mount
9.61” [244mm] H x 6.25” [159mm] W x 2” [50mm] D
Weight
ENVIRONMENTAL SPECIFICATIONS
Operating Temp.
Relative Humidity
-20°C to +55°C
90% max. with no condensation.
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Model: EC-GOLD Dual
2.0 INSTALLATION
2.1 Mechanical Installation
ECGOLDDUALUM12.doc
(2) Dual 3/4" & 1/2"
Knock-Outs for top entry cabling.
5.66"
5.16"
Dual 3/4" & 1/2"
Knock-Outs for rear entry cabling.
CO 0
CO 0
NO
C
NC
NO
C
NC
NO
C
NC
1
2
3
4
5
6
7
8
9
B u z r
Buzzer has built-in ACk.
V+ Sig
MOS Sensor Remote XMTR
EC
Sensor
Mounting Holes
(4 Places)
Without Cover
Dual 3/4" & 1/2"
Knock-Outs for external sensor.
6.25"
With Cover
CANADA LTD.
LCD www.arjayeng.com
EC 2
MENU
EC 1
SELECT
Rev: 1.2
Figure 2.0
Locate the EC-Gold Dual on a vertical surface away from drafts, open doors or windows, condensation or dripping moisture.
The vertical placement (above the floor) depends on the gas being monitored. For CO, the unit should be located within the breathing zone: about 4 - 5 feet above the finished floor*. For other gases, refer to an Arjay Engineering representative.
* Check local building codes (i.e. Ontario Building code requires mounting 2’11” to 3’11”).
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ECGOLDDUALUM12.doc Rev: 1.2
Model: EC-GOLD Dual
EC-Gold Dual Stand Alone Electrical Installationion
Out
!
Use good installation practice!
Do not run High Voltage cables in the same conduit as signal wires.
RS-485 Network 24VAC/DC Input
JP1
Jumper In for DC Power
For Network applications, the 2 wires
RS-485 network connects to the
PG-2000 Scanner or Central Access
Panel.
CO 0
CO 0
For RLU Loop (alarm only) applications, the output is configured for Loop output and connects to the corresponding Zone connection on the ISA-66 RLU board.
NC
NO
C
NC
NO
C
NC
NO
C
6
7
8
3
4
5
9
1
2
Buzzer has built-in ACk.
EC
Sensor
MOS Sensor Remote XMTR
Figure 2.1
- 8 -
Model: EC-GOLD Dual
R1
R2
R3
R4
STATUS
ECGOLDDUALUM12.doc
EC-Gold Dual and PG-2000 or Central Access Panel
Electrical Installationion
4 Wires + Shielded
(Shielded connected at this point only)
GND
24VAC/VDC
D-
D+
RS-485
(2 Wires)
Communication
Wire
CO 0
CO 0
CAL
1 2
4 5
3
6
SETUP
7 8
.
0
9
ENTER www.arjayeng.com
NC
NO
C
NC
NO
C
NC
NO
C 5
6
3
4
1
2
7
8
9
EC
Sensor
Buzzer has built-in ACk.
MOS Sensor Remote XMTR
Figure 2.2
EC-Gold Dual and ISA 66 RLU
Electrical Installationion
Rev: 1.2
CO 0
CO 0
NC
NO
C
NC
NO
C
NC
NO
C 5
6
3
4
1
2
7
8
9
B u z z e r
Buzzer has built-in ACk.
V+ Si
MOS Sensor Remote XMTR
EC
Sensor
For clarity only Zone 5 is shown connected.
sensors pr zone: Typically around 20 depending on wires sizes and lengths.
SGND connection (on ISA-66 RLU) NOT made to EC-Gold Dual.
24V
PGND
VSIG
SGND
N/C
CO 0
CO 0
To other
Zones
NO
C
NC
NO
C
NC
NO
C
NC
1
2
3
4
5
6
7
8
9
EC
Sensor
Buzzer has built-in ACk.
MOS Sensor Remote XMTR
Figure 2.3
CO 0
CO 0
NC
NO
C
NC
NO
C
NC
NO
C
1
2
3
4
5
6
7
8
9
B u z z e r
Buzzer has built-in ACk.
V+ Si
MOS Sensor Remote XMTR
EC
Sensor
- 9 -
Model: EC-GOLD Dual
Gas Alert
ECGOLDDUALUM12.doc Rev: 1.2
EC-Gold Dual and Gas Alert
Electrical Installationion
The Gas Alert only accommodates a single zone.
Sensors per zone: Typically around 20 depending on wires sizes and lengths.
SGND connection ( on Gas Alert) NOT made to ED-Gold Dual.
24V
PGND
VSIG
SGND
N/C
CO 0
CO 0
CO 0
CO 0
NO
C
NC
NO
C
NC
NO
C
NC
1
2
3
4
5
6
7
8
9
Buzzer has built-in ACk.
EC
Sensor
NO
C
NC
NO
C
NC
NO
C
NC
1
2
3
4
5
6
7
8
9
B u z z e r
Buzzer has built-in ACk.
EC
Sensor
MOS Sensor Remote XMTR
V+ Sig
MOS Sensor Remote XMTR
Figure 2.4
All user connections are via mating plug/receptacle connectors to make installation and service easier.
CAUTION:
THE UNIT HOUSES SENSITIVE ELECTRONIC COMPONENTS AND SHOULD BE HANDLED
WITH CARE. IF PUNCHING OR DRILLING THROUGH THE ENCLOSURE WALLS IS
NECESSARY MAKE SURE THAT THE INTERNAL ELECTRONIC MODULES ARE SHIELDED
FROM DEBRIS ESPECIALLY METAL PARTICLES.
PLEASE MAKE SURE THAT THE CONNECTIONS HAVE THE POLARITY AS INDICATED OR
THE CONTROLLER MAY BE DAMAGED.
USE GOOD INSTALLATION PRACTICE! DO NOT RUN HIGH VOLTAGE CABLE IN THE
SAME CONDUIT AS SIGNAL WIRES.
- 10 -
Model: EC-GOLD Dual
ECGOLDDUALUM12.doc
3.0 STARTUP AND CONFIGURATION
User Interface Overview
With Cover
Rev: 1.2
CO 0
CO 0
CANADA LTD.
LCD www.arjayeng.com
NO
C
NC
NO
C
NC
NO
C
NC
6
7
8
9
3
4
5
1
2
Buzzer has built-in ACk.
EC
Sensor
EC 2
MENU
EC 1
SELECT
MOS Sensor Remote XMTR
Calibration
Pushbutton
Push To Test only available when used with CO sensor
Push To Test
Pushbutton
LED
LED 1
LED 2
LED 3
LED 4
Status Color
Green
Red
Yellow
Red
Red
Meaning
Instrument ok, no faults.
Will remain green for Low, Hi and Hi/Hi alarm
Instrument failure / Sensor Fault condition
Low Alarm
High Alarm
Hi/Hi Alarm, Buzzer on
Calibration
Pushbutton
Push To Test
Pushbutton
Figure 3.0
3.1 Notes On The User Interface
The EC-Gold Dual can monitor up to 4 different Sensor inputs at one time.
Port 1: on board CO (carbon monoxide) sensor
Port 2: on board electrochemical sensor
Port 3: remote MOS sensor
Port 4: remote 4-20 mA Input Transmitter
The standard model provides 3 relays, a 4-20mA output and an RS-485 interface. The full feature model provides the addition of an LCD display of concentration, buzzer with silence and keypad interface.
The EC-Gold Dual may be configured and calibrated using the following methods:
1. Using the calibration pushbuttons (basic model without keypad). The pushbutton is accessible without removing the front cover.
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Model: EC-GOLD Dual
ECGOLDDUALUM12.doc Rev: 1.2
2. Using the keypad and display (full feature model). The user follows the menus on the display.
3. Using Arjay’s optional 2000-CAL hand held calibrator. The calibrator communicates with the EC-Gold Dual via the RS-485 connection using the modbus protocol. The calibrator’s LCD and keypad offer a more convenient method of setting up and calibrating the EC-Gold Dual unit.
3.2 Startup
Power up the unit. The status LED should be green. The High and Low alarm LED’s should go off in less than a minute.
The unit is normally pre-configured and calibrated at the factory so field setup is not required on startup.
To re-calibrate, see section 4.0 Calibration.
To re-enter or modify settings, follow the procedures described below. Only the full feature model interface procedure is described here.
After powering up the unit and under normal operating conditions, the LCD displays the Normal
Operating Menu. See the next page for detail Menu configuration>
The Default Password: 2000
Alrm Del – Alarm and Buzzer Delay (Setup Alarm Delay On and Off Time in second; setup
Buzzer Delay On time in second)
K1 – Relay 1 Alarm Delay On/Off time
K2 – Relay 2 Alarm Delay On/Off time
K3 – Relay 3 Alarm Delay On/Off time
Buzzer – Delay On time
Sel Snsr – Select Sensor
A1 – Relay 1 Alarm Setting Value (normally, Low alarm value)
A2 – Relay 2 Alarm Setting Value (normally, High alarm value)
A3 – Relay 3 Alarm Setting Value (normally, Hi/Hi alarm value)
- 12 -
Model: EC-GOLD Dual
3.3.1 Normal Operating Menu Flow Chart
ECGOLDDUALUM12.doc Rev: 1.2
13
Model: EC-GOLD Dual
3.3.2 Sensors Setup Menu Flow Chart
ECGOLDDUALUM12.doc Rev: 1.2
14
Model: EC-GOLD Dual
4.0 CALIBRATION
ECGOLDDUALUM12.doc Rev: 1.2
The instrument was calibrated and tested prior to leaving the factory. Therefore, it is possible to use the instrument directly out of the box. Under normal conditions, recalibration is recommended once every 6 months. For a two point calibration, the first point is typically Zero
(clear air); the second point (also called span) is a determined gas concentration value.
If the preset EC-Gold Dual calibration span value is known and you have the same calibration gas concentration, the entire calibration procedure can be completed without removing the front cover.
4.2 Calibration Procedures (Full Feature Mode with LCD / KEYPAD)
Calibration
CANADA LTD.
LCD www.arjayeng.com
EC 2
MENU
EC 1
SELECT
EC2
EC1
Calibration Ports
Flowrate Regulator preset for 0.5 Lpm Male, Quick Disconnect tube insertedinto EC-Gold
Dual Calibration Ports
(EC1 & EC2)
Flow On/Off Knob 6 feet of 5/16" O.D. x 3/16" I.D.
flexible, clear tubing.
Cal Gas Canister
Figure 4.0
1. Under normal operating conditions, the LCD displays the following (depending on sensors order):
CO 0
NO2 0
2. Follow the Manu Flow Chart, until the following screen display:
#1: CO
Zero
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Model: EC-GOLD Dual
ECGOLDDUALUM12.doc Rev: 1.2
3. Zero Calibration only needs to be done when installing a new sensor. Press <MENU> key to bypass Zero Calibration, and go to step 6 to start second point calibration. If a
Zero Calibration is required, follow the steps 4-5.
4. Press <SELECT> key, the LCD display:
Z xx mv xx
5. Make sure the ambient air around the sensor is clean ie. it has no traces of the gas being monitored. In applications where the ambient air is not guaranteed to be clean, use a compressed air calibration canister and apply the air to the sensor hole (EC1). For the Zero point, the mv values should be less then 100 mv. If the mv value is changing within 5 mv for a minimum of 10 seconds, the instrument will automatically accept the
Zero calibration. Or press <SELECT> key and finish the first point (Zero) calibration.
6. The LCD now displays the following and the instrument is ready for the second point calibration.
#1: CO
2nd Pt.
7. Press <SELECT> key to start the second point calibration, and the LCD displays the following. Press <SELECT> key to move the cursor and accept the second point calibration. If want to change gas concentration value, press <SELECT> key to move the cursor to proper position and press <MENU> key to increase up to the right value. Press
<SELECT> key to accept the gas concentration value.
S stands for second point
#1: CO
S 200
8. After selecting gas concentration value, the LCD displays the following and the instrument is ready for the second calibration:
S xxx mv xxx
9. Apply the Gas in the sensor hole (EC1). EC1 is for Carbon Monoxide; EC2 is for other types of gas, such as NO2. Start gassing the sensor by opening the valve on the canister. The flow rate is set to 0.5 Lpm (or ~1 SCFH (Standard Cubic Foot per Hour).
Wait about 90 seconds. After this, if the mv value is changing within 5 mv for a minimum of 10 seconds, the instrument will automatically accept the second point. Or press
<SELECT> key to manually accept the second point. If the calibration was successful, the LCD displays the following. Otherwise, the LCD displays the calibration error message.
#1: CO
Cal OK
10. The “Cal OK” or “Error Message” only displays a couple of seconds, then the LCD displays the following alarm 1 setting value:
#1: CO
A1
35
11. Press <MENU> key to bypass the Alarm value setting menu, until the following Sensor
Selection Menu shows up:
16
Model: EC-GOLD Dual
Sel Snsr
#1: CO
ECGOLDDUALUM12.doc Rev: 1.2
12. Press <
> or <> key to select the #2 Sensor or Exit. If choose the #2 Sensor, the LCD displays the following:
Sel Snsr
#2: NO2
13. Press <SELECT> Key to the second sensor calibration menu. If the sensor is mA input sensor, then go to step 14
#2 NO2
Zero
The calibration procedure for second sensor is the same as the first sensor except for applying gas to sensor hole (EC2). Follow the steps 3-12, then press <MENU> key to go to the normal working display.
14. If the sensor is mA input sensor, the calibration of the sensor is done at the remote sensor (see Remote Sensor Manual). The mA scale is normally factory set, but may be changed if change needed. Press <SELECT> to change mA settings or press <MENU> key to bypass the calibration and go back to the Sensor Selection Menu.
#2 CO mA Scale
15. Press <SELECT> key to set 4 mA, and the LCD displays the following. Press
<SELECT> key to move the cursor and accept the value. Normally, set 4 mA equals 0 ppm. To change the value, press <SELECT> key to move the cursor to proper position and press <MENU> key to increase up to the right value. Press <SELECT> key to accept the setting value.
#2 CO
4= 0
16. Press <SELECT> key to set 20 mA, and the LCD displays the following. Press
<SELECT> key to move the cursor and accept the value. 20 mA is normally set for maximum range of remote XMTR. To change the value, press <SELECT> key to move the cursor to proper position and press <MENU> key to increase up to the right value.
Press <SELECT> key to accept the setting value.
#2 CO
20= 200
17. Then the display goes to the Alarm setting Menu. Press <MENU> key to bypass the calibration and go back to the Sensor Selection Menu. Repeat Step 12 to Step 16 if calibrate more sensors.
18. Go back to the normal operating Menu by following the Normal Operating Menu Flow
Chart
THIS COMPLETES THE CALIBRATION PROCEDURE FOR
FULL FEATURE CONTROLLER
17
Model: EC-GOLD Dual
ECGOLDDUALUM12.doc Rev: 1.2
4.3 Calibration Procedures (Standard Feature Mode Without LCD / KEYPAD)
The EC-Gold Dual may be calibrated using a Single Point calibration procedure, by using calibration push button.
The Calibration pushbutton may be accessed using a screwdriver or other fine tool – See Figure 4.1 for the location of the access hole.
A full Dual Point calibration is always performed at the factory and involves zeroing the sensor in clean air, then calibrating at a preset gas concentration. The Single Point calibration is typically used in the field since it is more convenient. Also, it does not require clean air as one of the calibration points, since clean air cannot be guaranteed in all installations. A Single Point calibration assumes the unit has
already been zeroed. This is always true for new units from the factory.
Figure 4.1
4.3.2 SINGLE POINT CALIBRATION
The calibration gas concentration value must be known. The unit comes factory set for Single
Point Calibration and 100 ppm CO or 10 ppm NO2. If either setting is in doubt, then see section
7, controller setting sheet.
1. Determine what Calibration gas concentration the EC-Gold Dual is expecting. This value is listed on the packing slip and may be recorded in the back of the user manual in the CONTROLLER SETTINGS sheet for future reference.
18
Model: EC-GOLD Dual
ECGOLDDUALUM12.doc Rev: 1.2
2. The gas sensor is mounted directly behind the Calibration Port in the middle of the front plate of the EC-Gold Dual housing [See Fig. 4.1]. Insert the Quick Disconnect tube into the EC-Gold’s Dual Calibration Port.
3. Start gassing the sensor by opening the valve on the canister. The flow rate is preset to 0.5 Lpm (or ~1 SCFH (Standard Cubic Foot per Hour). Wait about 90 seconds.
4. Press and hold the calibration pushbutton (via the access hole – see Fig. 4.1) until the
Status LED glows orange acknowledging the calibration request. Release the pushbutton.
5. If the Status LED remains green after the Calibration pushbutton is released,
then the Calibration has been successfully completed. If the calibration was successful, the Status LED remains green. If there was a calibration error such as not enough change for the gas concentration used, then the Status LED shows red for about 2-3 seconds before reverting back to green.
THIS COMPLETES THE CALIBRATION PROCEDURE
FOR STANDARD FEATURE CONTROLLER
5.0 PUSH TO TEST FEATURE
The Push to Test feature allows the customer to verifty if the controller is receiving a LOW, HIGH, HIGH
HIGH and Total span alarm signals and that ventilation fans, audio alarms etc are working.
Press the Push to Test pushbutton to activate this feature. See Figure 3.0 for the pushbutton location.
When the button is pressed and released, the Status LED starts blinking green on and off every 2 seconds to indicate a test is underway. This feature forces the sensor to Low alarm plus 1ppm.
Press Button again to force High alarm plus 1ppm. Press Button again to force HIGH HIGH alarm (HIGH
HIGH alarm plus 1ppm). Press Button again to force span value alarm. Press Button again to get out of
Push to Test feature. If Push to Test feature is left ON, it will time out after 30 minutes.
19
Model: EC-GOLD Dual
ECGOLDDUALUM12.doc
6.0 TROUBLESHOOTING
ERROR DESCRIPTION
1. No Output and all lights off
2. 4-20mA output does not track the gas concentration.
3. In Discrete Voltage Output mode, the
ISA-66RLU or Gas Alert connected to the EC-Gold always shows Sensor Fault
Rev: 1.2
WHAT TO DO
Check the power to the unit. The voltage should be 24VAC/DC at the power connector with the positive and negative connected as shown on the connector label.
Make sure JP1 is in place for DC voltage
If the Power checks out, call Arjay
Service.
Make sure that the EC-Gold Dual output mode is set to Analog mode and not to Discrete Voltage Output mode. See Controller Settings Sheet section for details.
Make sure the maximum range of the remote XMTR is the same as the 2 nd calibration point. Ex. 20mA=200ppm
CO
Calibration may be required. See the calibration section for details.
Call Arjay/Enmet Service for Help if none of the above fixes the problem.
Make sure that the EC-Gold DUAL output mode is set to Discrete
Voltage Output mode and not to
Analog.
20
Model: EC-GOLD Dual
ECGOLDDUALUM12.doc
7.0 CONTROLLER SETTINGS SHEET
Checked by
Model Number
Serial Number
Hardware Rev.
Software Rev.
Rev: 1.2
The factory settings column below lists the typical default settings. The user may change these values at any time. If changed, please fill in the USER SETTING column for future reference.
PARAMETER DESCRIPTION
FACTORY
SETTING
OUTPUT MODE
There are2 main output modes :
Analog(4-20 mA) and DVO (discrete Voltage
Output)
BUZZER TYPE
Enable or disable the buzzer
LOW ALARM DELAY
TO ON
LOW ALARM DELAY
TO OFF
HIGH ALARM DELAY
TO ON
HIGH ALARM DELAY
TO OFF
Hi/Hi ALARM DELAY
To ON
Hi/Hi ALARM DELAY
To OFF
USER
SETTING
The minimum time in seconds a Low Alarm must exist before the corresponding relay and indicator are activated.
The minimum time in seconds the Ec-Gold Dual must be out of Low Alarm before the Low Alarm relay and indicator are de-activated
The minimum time in seconds a High Alarm must exist before the High Alarm relay and indicator are activated.
The minimum time in seconds the Ec-Gold Dual must be out of High Alarm before the High Alarm relay and indicator are de-activated.
The minimum time in seconds a Low Alarm must exist before the corresponding relay and indicator are activated.
The minimum time in seconds the Ec-Gold Dual must be out of Low Alarm before the Low Alarm relay and indicator are de-activated
Type or Port.
SENSOR #1
Sensor serial number
Gas name
Low alarm value
High alarm value
Hi/Hi alarm value
Span Value
21
Model: EC-GOLD Dual
ECGOLDDUALUM12.doc Rev: 1.2
PARAMETER DESCRIPTION
FACTORY
SETTING
SENSOR #1
USER
SETTING
First Cal point
Enter ppm and corresponding mV e.g. 0ppm= 150mV
Second Cal point
Enter ppm and corresponding mV e.g. 100ppm=400mV
Type or Port.
SENSOR #2
Sensor serial number
Gas name
Low alarm value
High alarm value
Hi/Hi alarm value
SENSOR #3
SENSOR #4
Span Value
First Cal point
Enter ppm and corresponding mV e.g. 0ppm= 150mV
Second Cal point
Enter ppm and corresponding mV e.g. 100ppm=400mV
Type or Port.
Sensor serial number
Gas name
Low alarm value
High alarm value
Hi/Hi alarm value
Span Value
First Cal point
Enter ppm and corresponding mV e.g. 0ppm= 150mV
Second Cal point
Enter ppm and corresponding mV e.g. 100ppm=400mV
Type or Port.
Sensor serial number
Gas name
Low alarm value
High alarm value
Hi/Hi alarm value
Span Value
First Cal point
Enter ppm and corresponding mV e.g. 0ppm= 150mV
Second Cal point
Enter ppm and corresponding mV e.g. 100ppm=400mV
22
MAINTENANCE AND CALIBRATION
Your ARJAY / ENMET gas detector is the state of the art in gas detection, but like any other part of your ventilation system, it requires periodic maintenance and calibration.
There are various sensor technologies that may be used in your Arjay gas monitor; including solid state MOS, Electrochemical, Infrared and Pellister Pair (Hot wire). These have a normal operating life of 3 to 5 years under ambient conditions. You should consider a preventive maintenance schedule whereby you test your system on a periodic basis to ensure its proper calibration and operation.
For solid state (MOS) sensors, we recommend calibration every 3 to 4 months for a typical garage application. For Electrochemical sensors, we recommend calibration every 6 months for a typical garage application. Pellister Pair we recommend every 3 to 4 months and Infrared we recommend every 6 months. For applications that are more sensitive, or where internal policies exist, a higher frequency of calibration may be required. This is a simple procedure which will indicate any problems with your system. A test and calibration kit may be purchased from
ARJAY ENGINEERING for this purpose. Parts are also readily available from our facility.
MAINTENANCE CONTRACT
Alternatively you may wish to consider a Maintenance Contract with ARJAY ENGINEERING whereby one of our service technicians comes to your site and checks out the unit for proper calibration and operation on a regularly scheduled basis. This is done on a flat per annum fee.
All parts are extra. Typical target gases are included, however, exotic or specialty gases may have a surcharge. If you wish us to quote a Maintenance Contract fill in the section below and return to our office.
COMPANY:
ADDRESS:
CONTACT PERSON:
PHONE: FAX:
EMAIL:
MODEL AND SERIAL
NO. OF GAS DETECTOR:
Fax to address below or e-mail to [email protected]
ARJAY ENGINEERING LTD
2851 Brighton Rd
Oakville, Ontario, Canada L6H 6C9
Telephone: +1 (905)-829-2418
Telefax: +1 (905)-829-4701
N. America Toll: (800)-387-9487
Internet: www.arjayEng.com
E-Mail: [email protected]
ARJAY ENGINEERING LTD.
GUARANTEE
We hereby guarantee this instrument to be free from defects in workmanship and materials, and if found defective in workmanship or materials, upon being returned to our factory, prepaid, within one year from date of purchase, it will be repaired or replaced at factory without charge. However, if upon being returned and after inspection, there is evidence that the instrument has been subjected to tampering, careless handling, improper or faulty application or installation, the above guarantee shall not be applicable, and we shall have the right in any such case to make a charge to cover the cost of repairs, servicing and transportation expense. The undersigned assumes and shall have no liability for consequential damages resulting from the use or misuse of the instrument.
The foregoing guarantee is in lieu of all other guarantees or warranties, expressed or implied, and all other obligations or liabilities, contractual or otherwise, either to the original purchaser of said instrument, or to any other person whomever.
BY: ARJAY ENGINEERING LTD.
For service, call ARJAY Engineering Ltd. directly: Canada (905) 829-2418
North American Toll Free: 1-800-387-9487
Fax: (905) 829-4701
Internet:
E-mail: www.arjayeng.com
ARJAY ENGINEERING LTD
2851 Brighton Rd
Oakville, Ontario, Canada L6H 6C9
Telephone: +1 (905)-829-2418
Telefax: +1 (905)-829-4701
N. America Toll: (800)-387-9487
Internet: www.arjayEng.com
E-Mail: [email protected]
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