OPA 189 User Manual
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2.5 Electronic Structural Features
Setting - Automatic when switched on
Microprocessors - 2 (Motorola MC68705R5 and MC68705U5)
Measurement processing - Microprocessor controlled (measure-
ment card)
Measurement display - Microprocessor controlled (display card)
Printer - Impact, 24 columns
Smoke display - 3, 7-segment high intensity LEDS 20 mm high, red
Temp display - 3, 7-segment high intensity LEDS 20 mm high,
green
Test N° Display - 1, 7-segment high intensity LED 14 mm high, green
Measurements displayed - Smoke: from 00.00 to 99.9%
Smoke K (m-1) from 0.00 to 9.99
Gas temp: from 0 to 150°C
Solenoid valves - Stabilized power supply
Chamber ventilation - Controlled delivery
Start-up and self-test time - 1 min, normal
Time to reach optimum operating
rates - 5 min, normal (at 25°C)
Messages - On display and printed
Operating temperature - +0° to +45°C
Humidity range - 45%-90%
Clearing measurement device - Automatic, press ZERO key
2.6 Settings and Controls
Console keypad - Synoptic touch type
Function keys - Seven
Measuring lights - Eight LEDs on keypad
Remote control - Infrared
Remote control signal receiver - On front of console
2.7 Power Supply
From mains - Single phase 50 Hz (±2%)
220V (±10%)
From battery - 13.8 VDC (-15%+10%C)
Absorbed power - from mains, 50VA, normal
from battery, 50 W, normal
2.8 Supplementary Functions
Gas temperature probe - built-in
