Article No. 28 100-
Version 12.2007
Page 11 of 12
ADDITIONAL TECHNICAL DATA
Indicator
Supply voltage
230 V AC 50 Hz Degree of protection:
IP 30 or IP 65 acc.
to IEC 529
Power input:
max. 2 VA
Measuring input:
4 - 20mA ; U
0
=
20V ;
Resolution:
10 Bit
Accuracy:
± 1 %
Relay output:
Optional
(see accessories)
Switching voltage: max. 250 V AC Analog output:
0 - 5 V DC
Switching current max. 3.5 A 4-20 mA
Dimensions W x H x D:
in [mm]
120x120x49 (IP30)
or
130x130x60 (IP65)
Housing:
Polystyrene (IP30)
or
Polycarbonate (IP65)
Probe element (relative pressure probe for level detection)
Operating voltage:
20 V DC
Degree of protection:
IP 68 acc. to IEC
529
Material:
V4A ; POM;
FPM; HD-PE
Length of probe
(without cable)
90 mm
Standard version:
250 mbar
Length of probe
connection cable
6 m
Installation position: vertically suspended, or horizontally supine
Temperature range: Ambience
Operating media
0 °C to 80 °C
LIST OF ACCESSORIES
Order no. Product description Information on application
28 851-00
DTM-1 data transmission mod-
ule 0-5 V
Retrofittable module as interface to data trans-
mission, e.g. for the master control system of
the building
28 853-00
DTM-3 data transmission mod-
ule 4-20 mA
Retrofittable module as interface to data trans-
mission, e.g. for the master control system of
the building
28 856-00
PC set
Retrofit kit for data transmission to a PC – incl.
software for indication/evaluation and for send-
ing messages via e-mail
28 857-00
Cable junction box IP 66, water-
tight, with pressure equalization
To extend the probe cable - e.g. in the dome
28 500-00 SmartBox 5 - data transmitter
GSM telecommunication system for SmartBox
1, 2 or 3 and event messages (e.g. burner mal-
function)
28 858-00 Additional antenna
Additional antenna for reception amplification at
the SmartBox 5 - data transmitter
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