INTRODUCTION
The IRD 1020.1 detector is used to supervise gas or oil flames. This flame monitoring device should be connected to a Satronic oil burner control box. Monitoring is based on the infra-red flicker principle, in other words, the flickering infra-red light of the flame is detected. The steady radiation from, for example, the glowing refractory layer on the inside of the boiler, has no effect on the detector. The IRD 1020.1 replaces the IRD 1020 and 920.
When exchanging the IRD 1020, care must be taken that the corresponding IRD 1020.1 with the same imprint (blue or white) is used (see page 3 and 4). When exchanging the IRD 920, care must be taken to wire the sensor correctly (see page 3), and the existing holder
must be exchanged with the magnetic holder M93.
For replacement of the IRD 920 with IRD 1020.1 is the sensor cable also needed.

The infra-red flicker detector can be used with any one of the
following control boxes:

• DKG 972
• DLG 974, 976
• DMG 970, 971, 972, 973
• TFI 812.2
• MMI 810, 811, 812, 815, 816, 962
• TMG 740-2, 740-3
• SGU 930, 930i

CONSTRUCTIONAL FEATURES
The infra-red sensor and the pre-amplifier are hermetically sealed in glass and along with the electronics form an integrated unit in the flame detector. Wiring is by way of a plug connection. The sensitivity control and two LED’s for indication of the flame signal are situated on the rear of the flicker detector.

SENSITIVITY –CHARACTERISTIC OF IRD 1020.1 (BLUE, WHITE)
IRD-Type: Blue
Sensitivity: standard
Characteristic: For Gas- or dual fuel burner (Immune to Ignition spark detection).

IRD-Type: White
Sensitivity: increased
Characteristic: For Gas- or dual fuel burner for difficult to detect flame (Immune to Ignition spark detection).

TECHNICAL DATA
Supply voltage 220 / 240 V (-15... +10%)
50 Hz (50 - 60 Hz)
Nominal current input approx. 4 mA
Power consumption 1 VA
Ambient temperature -20° C to +60° C
Insulation standard IP 41
Mounting attitude any
Weight 40 g
Flame viewing attitude side-on or end-on according
to type
Spectral response 800 - 1100 nm
(with daylight filter) maximum 950 nm
Frequency range 15 Hz.... 250 Hz (-12 dB)
Sensitivity adjustment range approx. 1 : 20 (26 dB)
Switch-on delay < 3.5 sec.
(after connecting
operating voltage)
Response time < 0.1 sec.
Cut-out time < 1 sec.
Approved ambient parameter max. 95% at 30° C
- for operation -20° C... +60° C
- for storage -20° C... +80° C
Build-up of ice, penetration of
water and condensing water are inadmissible
Approvals according
to European standards EN 298, as well as all other
relevant Directives and
standards