Technical Data - Burkert 8205 Notice D'utilisation

2 SPECIFICATION

2.5 Technical data

pH measurement
Measuring range
Resolution
Measuring error
Temperature measurement
Measuring range
Resolution
Measuring error
Compensation
Control mode
Min. difference of the pH measuring range corresponding to the 4-20 mA signal
0,5 pH unit (ex: range 6,7 to 7,2 pH corresponds to the 4-20 mA current output)
Electrical data
Power supply
Current consumption, max.
(without sensor)
Current output
Alarm relay output
Pulse output
Electrical connection
0...14 pH
0,01 pH
± 0,02 pH, after electrode calibration
-30 to +140 °C
0,1 °C
± 1 °C
automatic compensation with the Pt1000, or manual
compensation through user programming
Reference temperature = 25
Programmable, type P; PI ; PID
15-30 VDC, filtered and regulated, or 115/230 VAC -
50/60 Hz (see technical data 115/230 VAC, next page),
depending on the version
with relays: ≤ 60 mA at 30 VDC, ≤ 110 mA at 15 VDC
without relays: ≤ 40 mA at 30 VDC, ≤ 70 mA at 15 VDC
4-20 mA programmable, proportional to pH (or T°C)
Loop resistance:
1200 Ω max. at 30 V; 900 Ω max. at 24 V; 450 Ω max. at 15 V
1 relay, normally open, adjustable, 3 A, 230 VAC
2 relay or 2 transistor outputs (depending on version);
programmable pulse duration and frequency
- Relays: 3 A / 250 VAC max. ; F < 1 Hz, normally open
- Transistors: polarized, potential free, 5 - 30 VDC, 100 mA,
protected. Line drop at 100 mA: 1.5 VDC
through shielded cable with a max. section of 1,5 mm
E-7-
PH CONTROLLER 8205
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