Window 141 Microcontroller Module 

Module size	Plug-in type 6U Eurocard with front panel display
Weight	1kg
Environment	-4 to 158°F (-20 to 70°C)
Humidity	95% non condensing
Fuses	2 required: 63mA 250VA at 60Hz, or 100mA 250VA at 50Hz
Supply voltage	120 or 240VAC -15% to +10% 15VA at 50Hz, or 12VA max. at 60Hz
Signal input	IR & UV signals from scanner head
Flame on response	1s max.

Flame failure response time (FFRT)	0.5 to 3.5s (independent for UV and IR) +/- 0.5s adjustable with 0.5s increments
Display	Two digital displays: one for IR flicker frequency and one for UV frequency proportional to intensity. Two multicolour LED bar graphs: one for IR relative frequency and one for UV relative intensity. System status LEDs.
Chassis	Chassis available in different sizes, which can accommodate from 1 to 8 signal processing modules.
Output contacts	Individual UV, IR flame (NO) relay and system fault relay connected to your burner management system. Relay contact ratings: Max. switching power: 60W / 125VA Max. switching voltage: 220VDC / 250VAC Max. switching and carrying current: 2A
Analog output	0 or 4 to 20mA, representing the highest IR or UV bar graph level. Maximum 500 ohms load resistance between output and -12VDC.
Adjustment and verification	Digital. No potentiometer for flame sensitivity adjustment required. A plug on module front for handheld terminal permits adjusting and verifying the system.
False signal rejection	Automatic rejection of any constant (for 8s or more) IR and/or UV signal which does not represent a real flame (incandescent light, interference, defective UV tube, etc.), and activation of the system fault relay.
Additional feature	Special function for opposing flames.
Approvals	FM standard 7610, CSA class 2632-01. CE pending.