Endress+Hauser RMS621 - Spare Parts and Device Return

RMS621 Trouble-shooting
Endress+Hauser 57
9.4 Spare parts
Fig. 25: Energy Manager spare parts
• Minimum temp. difference Minimum temperature differential configured is
undershot, i.e. temperature differential valued at
zero.
Reduce low flow cut off if necessary. (see Section
6.3.3)
Display Cause Remedy
Item no.. Order number Spare part
1 RMS621X-HA Front cover, version without display
1 RMS621X-HB Front cover, version with display
2 RMS621X-HC Complete housing without front
incl. three blanking inserts and three PCB carriers
3 RMS621X-BA Bus board
4 RMS621X-NA
RMS621X-NB
Power unit 90 to 250 V AC
Power unit 20 to 36 V DC // 20 to 28 V AC
5 RMS621X-DA
RMS621X-DB
RMS621X-DC
RMS621X-DD
Display
Front board for version without display
Display + front cover
Display + front cover, neutral