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_
REGARD
®
3900
_
Fault elimination and messages
– The messages on the display disappear (e.g. over-range).
– External warning devices remain activated or deactivated depending on
configuration.
Remote acknowledgement
Remote acknowledgement is a switch that has the same functions as the button
Acknowledge
/
OK
, but outside the control unit.
Hold / II /
▲
Controls the scroll function and switches between the gas type and the measuring
range on the display field.
●
Press Hold / II /
▲
for less than 1 second to switch display scrolling on/off (if
using more than 4 channels).
●
Press Hold / II /
▲
for longer than 1 second to toggle between the gas type and
the measuring range.
Only REGARD® 3920
Using the
▲
/
▼
/
OK
buttons on REGARD® 3920, you can also navigate to the
settings within the integrated configuration menus and select them.
6.7
LED and display test
By pressing and holding two control buttons at the same time, the LEDs, the display
and the internal acoustic alarm sounder of the control unit can be tested. While the
buttons are pressed, all the LEDs light up (the power AC LED only lights up when
the corresponding connector), all segments of the display field are filled and the
acoustic alarm sounder emits an audible tone.
– REGARD® 3900: Press
Acknowledge
and
Hold
– REGARD® 3910: Press
OK
and
II
– REGARD® 3920: Press
OK
and
▲
This feature can be used if needed for reliability testing of the visual and acoustic
output of the control unit.
7
Fault elimination and messages
7.1 General
Fault
Cause
Remedy
Display shows noth-
ing and all LEDs off
No power supply to control
unit
Check the external supply
and the wiring and repair
Faulty energy supply unit
Replace the energy supply
unit
Faulty internal wiring
Check the power distribution
internal wiring and repair
Nothing shown on
display
No power supply to display
PCB
Check that the ribbon cable
is connected to the display
PCB and all modules, and if
necessary, reconnect and
replace display PCB
Summary of Contents for Regard 3900
Page 1: ...REGARD 3900 Instructions for use de en es nl ru tr zh...
Page 3: ...QVWUXFWLRQV IRU XVH _ REGARD 3900 This page has been left blank intentionally...
Page 171: ..._ REGARD 3900 _ REGARD 3900 QKLELW 5 5 p 5 5 p...
Page 172: ..._ REGARD 3900 _ 2YHUUDQJH 8QGHUUDQJH 0DLQWHQDQFH QKLELW 3RO WURQ 5 5 p 7H...
Page 173: ..._ REGARD 3900 _ 1 Dr ger 204 Dr ger Dr ger Dr ger Dr ger Dr ger...
Page 177: ..._ REGARD 3900 _ 4 2 Inhibit 4 2 1 Inhibit Inhibit Inhibit Inhibit 1 0 0 1 Inhibit 30...
Page 178: ..._ REGARD 3900 _ 4 2 2 4 3 A1 A2 A3 F1 F2 F1 F2 F2 F1 1 A1 1 A2 2 Ch1 Ch4 44703 44704...
Page 183: ..._ REGARD 3900 _ 5 2 1 REGARD 3900 3920 50 Dr ger 50 B 1 IP65 M6 A C 2 B 5 44708 A M6 x 10 B C...
Page 187: ..._ REGARD 3900 _ 5 6 ATEX REGARD 3900 M3 REGARD 3900 3920 REGARD 3910 5 6 1 6 4 44711 44712...
Page 190: ..._ REGARD 3900 _ 5 6 3 24 REGARD 3910 Dr ger 2 44715 44716...
Page 191: ..._ REGARD 3900 _ 5 7 2 5 2 0 5 2 5 7 1 4 20 44717 44718...
Page 194: ..._ REGARD 3900 _ 5 8 2 A1 A2 F1 RL1 RL8 PSU 44723...
Page 195: ..._ REGARD 3900 _ 5 8 3 Ch1 Ch8 44724 44726...
Page 196: ..._ REGARD 3900 _ 6 6 1 20 2 Dr ger 6 1 1 1 Hold II 1 44727 44702...
Page 202: ..._ REGARD 3900 _ Under range Over range Fault F Fault F...
Page 203: ..._ REGARD 3900 _ Fault F Inhibit 1 0 1 0 3 Inhibit 0 20 RS 232...
Page 257: ..._ REGARD 3900 257 _ 1 Dr ger 283 Dr ger Dr ger Dr ger Dr ger Dr ger 2 2 1 2 2...
Page 267: ..._ REGARD 3900 267 _ 5 5 3 Power AC LED 24 V Sk2 AC on Power AC LED LED 44710 44729 44711...
Page 271: ..._ REGARD 3900 271 _ Dr ger REGARD 3910 2 m 5 7 2 5 mm2 0 5 mm2 44716 44717...
Page 272: ...272 _ REGARD 3900 _ 5 7 1 4 20 mA 6 4 2 4 4 5 7 2 4 20 mA 44718...
Page 274: ...274 _ REGARD 3900 _ 5 8 2 5 mm2 0 5 mm2 5 8 1 Acknowledge OK RR 44722...
Page 275: ..._ REGARD 3900 275 _ 5 8 2 A1 A2 F1 RL1 RL8 PSU 44723...
Page 276: ...276 _ REGARD 3900 _ 5 8 3 Ch1 Ch8 44724 44726...
Page 277: ..._ REGARD 3900 277 _ 6 6 1 20 LCD 2 Dr ger 6 1 1 1 Hold II 1 2 Hold II 1 6 1 2 44727 44702...
Page 284: ...284 _ REGARD 3900 _ 269 10 8 2 2 8 2 3 8 2 4 1 2 1 40 90 2 2 3 3 LED LED OK LED OK 4 mA...
Page 290: ...290 _ REGARD 3900 _ 1 4208796 1 4208800 1 4208801 1 4208802 1 4208803...