Page 61 - Gas Detection Systems Training Manual

SEC 3120 DIN Digital Gas Transmitter
Detection Method
Toxic Gases – Electrochemical Combustible - Infrared
Gas Sensor Compatibility
SEC 3000 & SEC Millenium
Output (digital)
RS-485 LAN (Isolated)
Outputs (Two analog)
4-20 mA (source type) max. 1000 ohm load at 24 VDC supply voltage
Output (optional relays)
(3) Alarm and (1) Fault
Display
Back Lighted LCD
LEDs for relay indication
Operating Voltage
18-32 VDC
Operating Current (No Sensor) 125mA Max @ 24VDC
Power Consumption (SEC3120 & Sensor)
Toxic Gases and oxygen (SEC 3000) – 4W Max Combustible & CO2 (SEC Millenium) – 9W Max
Temperature Rating
-40 to + 70C Humidity
0-99% RH (Non-condensing)
RFI
Built in filters reject RFI/EMI
Housing Construction
ABS Plastic (Enclosure color gray)
Certification
CSA/NRTL Pending
Housing Dimensions
3.54 (W) x 4.17 (L) x 2.28 (H) inches {90 (W) x 106 (L) x 58 (H) mm}
Weight
Approximately 2 lbs. {0.9 Kg.}
SPECIFICATIONS
Oxygen (O2) Hydrogen (H2) Ammonia (NH3) Nitric Oxide (NO) Bromine (Br2) Fluorine (F2) Arsine (AsH3) Ozone (O3) Chlorine (Cl2) Phosgene (COCl2) Diborane (B2H6) Formaldehyde (HCHO) Ethylene Oxide (ETO)
Carbon Monoxide (CO) Germane (GeH4) Silane (SiH4) Phosphine (PH3)
Partial Gas List
Combustible
(HC)
Current Output
0.0 mA 0.8 mA 1.2 mA 1.6 mA 2.0 mA 2.2 mA 4-20 mA 4.0 mA 5.6 mA 8.0 mA 12 mA 16 mA 20 mA
>20 mA
Sulfur Dioxide Nitrogen Dioxide Chlorine Dioxide Hydrogen Sulfide Hydrogen Fluoride Hydrogen Chloride Hydrogen Cyanide Hydrogen Selenide Hydrogen Peroxide Carbon Dioxide
Status
(SO2) (NO2) (ClO2) (H2S) (HF)
(HCl) (HCN) (H2Se) (H2O2) (CO2)
Unit Fault
Unit warm up
Zero drift fault Calibration fault
Unit spanning
Unit zeroing
Normal measuring mode Zero gas level
10% Full Scale 25% Full Scale 50% Full Scale 75% Full Scale
Full scale Over-range
Sensor Electronics Corporation
12730 Creek View  Savage, MN 55378 U.S.A.
(800) 285-3651  (952) 938-9486  FAX: (952) 938-9617 www.sensorelectronic.com  sales@sensorelectronics.com