Gas
Detected |
Carbon
Monoxide (CO) |
Range |
0-300
ppm electrochemical and 0-500 ppm electrochemical |
Standard
Accuracy |
¡À7%
of reading for 0 -300 ppm with electrochemical
¡À3% of reading for 0 -500 ppm with electrochemical
5-45 ¡æ (41-113 ¡ãF), 15 -95% RH |
Sensing
Element |
Electrochemical |
Operation
Conditions |
0-50
¡æ (32-122 ¡ãF), 15 - 95% RH non-condensing |
Sample
Method |
Diffusion
or flow through, sample tube for duct |
Stability |
<
5% signal loss/year |
Manufacturing
Process |
ISO
9002 certified |
Output
Signal |
4-20
mA active or passive, 0-5Vdc or 0 -10 Vdc jumper selectable |
Output
Drive Capability |
Active
current output -750 ohms max
Passive current output -1000 ohms max @ 24 Vdc
10 Kohm min for voltage output |
Output
Resolution |
10
bit PWM |
LCD
Display (optional) |
LCD
for displaying PPM
1 ppm resolution, 28 x 13 mm alpha-numeric 2 line x 8 characters |
Field
Calibration |
Calibration,
applying calibration gas standards (Contact Greystone for
Calibration kit) |
External
Dimensions |
ABS
Space -124.5 W x 183.5 H x 43 mm D
Duct ABS -124.5 x 183.5 x 250.5 mm includes duct insertion tube |
Pressure
Coefficient |
0.020
¡À0.008% signal/mBar |
Typical
Coverage Area |
700
m2 (7500 ft2) |
Response
Time |
<
30 seconds for 90% step change |
Warm-up
Time |
200
seconds |
Power
Supply |
20-30
Vac/dc (non-isolated half-wave rectified) |
Consumption |
100
mA max @ 24 Vdc with all options on
200 mA max @ 24 Vac with all options on |
Input
Voltage Effect |
Negligible
over specified operating range |
Protection
Circuitry |
Reverse
voltage protected and output limited
Transient protection and resettable fuse |
Optional
Relay Output |
One
or two Form C contact (N.O. and N.C.), status LED's,
5 amps @ 250 Vac, 5 amps @ 30Vdc, p.f. = 1
Relay Trip Point -Programmable 10, 15, 25, 50 or ppm increments
Relay Hysteresis -Programmable 25-200 ppm in 25 ppm increments |
Programming
and Selection |
Via
internal push-buttons and jumper |
Wiring
Connections |
Screw
terminal block (14 to 22 AWG) |