Cảm biến CO cho tầng hầm bãi đỗ xe
Thang đo: 0-300PPM(5%)
Vùng bao phủ: 700m2 hoặc bán kính 15 mét
Hiển thị LCD, có thể giao tiếp thông qua Modbus, 2 relays ra (N.C & N.O)
Nguồn điện: 15~30VAC/VDC
+ Thang đo: 0-300PPM(5%).
+ Vùng bao phủ: 700m2 hoặc bán kính 15 mét.
+ Sai số trong điều kiện môi trường ( nhiệt độ 0-50˚C, độ ẩm 15-90%RH): ±5 PPM 3%
+ Hiển thị LCD, có thể giao tiếp thông qua Modbus, 2 relays ra (N.C & N.O)
+ Tín hiệu ngõ ra: 4-20 mA , 0-5 Vdc or 0-10 Vdc (chuyển đổi điểm tiếp xúc) và 10 bit PWM (±0.4 ppm)
+ Nguồn điện: 15~30VAC/VDC
Xem các chi tiết kỹ thuật khác như sau:
|
SPECIFICATIONS |
CO DETECTOR - Product # CMD |
|
Gas Detected |
Carbon Monoxide (CO)
|
|
Range |
0-300 PPM (5%), 0-500 PPM (3%) |
|
Standard Accuracy at 0-50˚C (32-122˚F), 15-90%RH |
±5 PPM 5% of reading for 0 – 300 PPM ( whichever is greated ) ±5 PPM 3% of reading for 0 – 300 PPM ( whichever is greated ) |
|
Sensing Element Life Expentancy |
Electrochemical 5-7 years in air |
|
Operation Conditions |
-20-50˚C (-4-122˚F) for 5%, 0-50˚C (32-122˚F) for 3%, 15-95% RH non-condensing |
|
Sample Method |
Diffusion or flow through, sample tube for duct mounted units |
|
Stability |
< 5% signal loss/year |
|
Manufacturing Process |
ISO 9001 certified |
|
Output Signal |
4-20 mA active (sourcing), 0-5 Vdc or 0-10 Vdc jumper selectable |
|
Output Drive Capability |
Current output - 500 ohms max10 Kohm min for voltage output |
|
Output Resolution |
10 bit PWM (±0.4 ppm) |
|
LCD Display (optional) |
LCD for displaying PPM and menu parameters 1 PPM resolution, 28mm W X 13mm H (1.1” X 0.5”) alpha-numeric 2 line X 8 characters characters |
|
Field Calibration |
By applying calibration gas standards (Contact Greystone for calibration kit) |
|
External Dimensions |
ABS Space - 124.5mm W X 183.5mm H X 43mm D (7.2” X 4.9” X 1.7”) Duct ABS - 124.5mm X 183.5mm X 250.5mm (7.2" X 4.9" X 9.9") includes duct insertion tube |
|
Agency Approvals |
Sensor is UL Recognized Component for ANSI/UL-2034 and UL-2075, E240671 |
|
Typical Coverage Area |
700 m2 (7500 ft2) or 15m (50ft) radius |
|
Response Time |
< 35 seconds for 90% step change |
|
Warm-up Time |
200 seconds |
|
Power Supply |
15-30 Vac/dc (non-isolated half-wave rectified) |
|
Consumption |
80 mA max @ 24 Vdc with all options on 150 mA max @ 24 Vac with all options on |
|
Input Voltage EVect |
Negligible over specified operating range |
|
Protection Circuitry |
Reverse voltage protected and output limited Transient protection |
|
Optional Relay Output |
One or two Form C contact (N.O. and N.C.) 5 amps @ 250 Vac, 5 amps @ 30 Vdc, p.f. = 1 Relay 1 Trip Point - Programmable 25, 40-350 PPM in 10 PPM increments Relay 2 Trip Point - Programmable 100-400 PPM in 10 PPM increments Relay Hysteresis - Programmable 10, 15, 25, 50 or 75 PPM Relay Delay - Programmable 0, 1, 2, 3, 4, or 5 minutes |
|
Programming and Selection |
Via internal push-buttons and jumpers or optional Modbus communication (LCD rquired) |
|
Wiring Connections |
Screw terminal block (14 to 22 AWG) |
