Greystone AIR-300, Installation And Operating Instructions Manual

Page: 7 / 8

Configuration Menu Values
Menu Mode Default Value Linear Output Range LED Status
Manual/Auto Auto n/a
AUTO LED indicates status
OK and LOW flash
Relay Mode ASO n/a
ASO (HIGH LED flashes)
Linear (MID LED flashes)
ASO – HIGH n/a LOW, MID or HIGH LED is lit
Relay Level
Linear – 2.5 V
5 V
12 mA
1-4 V on 5 V range
2-8 V on 10 V range
7.2-16.8 on 4-20 mA range
value shown as 5 bit binary
Relay Hysteresis
0.303 V
0.606 V
0.97 (4.97) mA
0 – 0.606 V on 5 V range
0 – 1.212 V on 10 V range
0 – 1.94 (4 – 5.94) mA
value shown as 5 bit binary
only for Linear Mode
Air Offset
Calibration
Factory Cal
approx. 1.75 V
Sensor /- 0.6 V on ASO
6 bit binary value 0-50
00000 to 11111 to (1)10010
Specifications
Measurement . . . . . . . . . . . . . . . . . . Solid State TGS-800 VOC sensor
Sample Method . . . . . . . . . . . . . . . . Diffusion or flow through, sample tube for duct
Power Supply . . . . . . . . . . . . . . . . . . 22-26 Vac, 20-30 Vdc
Consumption . . . . . . . . . . . . . . . . . . . 80 mA @ 24 Vdc, 200 mA @ 24 Vac, 5 VA Max.
Input Voltage Effect . . . . . . . . . . . . . Negligible over specified operating range
Protection Circuitry . . . . . . . . . . . . . . Reverse voltage protected and output limited
Operating Conditions . . . . . . . . . . . . 0-40
°
C (32-104
°
F), 0-95 %RH non-condensing
Standard Output Signal . . . . . . . . . . Analog Stepped Output (ASO) in four steps representing Ok, Low, Mid and
High pollution levels (each step is independently adjustable from 0-10 Vdc)
Optional Output Signal . . . . . . . . . . Linear output representing 0-100 % pollution level, jumper selectable for either
0-5 or 0-10 Vdc or 4-20 mA (active)
Output Drive Capability . . . . . . . . . . 500
Ω
maximum for current output, 10 K
Ω
minimum for voltage output
Optional Relay Output . . . . . . . . . . . Form C contact, status LED, 5 Amps @ 250 Vac, 5 Amps @ 30 Vdc, p.f. = 1
Display . . . . . . . . . . . . . . . . . . . . . . . 5 LEDs indicating pollution level, operational mode and programming values
Programming and Selection . . . . . . . Via internal push-buttons and jumpers
Wiring Connections . . . . . . . . . . . . . Screw terminal block (14 to 22 AWG)
Enclosures . . . . . . . . . . . . . . . . . . . . AE wall mount enclosure, 2.75”w x 4.65”h x 1.25”d (70 x 118 x 32mm)
Duct mount with sampling tube, 4.8”w x 7.2”h x 2.2”d (122 x 183 x 56mm)