Page 375 - Bürkert

pH or ORP Transmitter

8202 ELEMENT neutrino • Analog 4-20 mA output

• Universal process connection
• Compatible with 120 mm pH/ ORP
probes Type 8203

• Temperature compensated pH
measurement

Please see fittings

The Bürkert ELEMENT neutrino transmitter, Type 8202, is a compact Envelope Dimensions [mm] (see datasheet for details)
device designed for the measurement of:
• the pH in clean liquids or liquids containing solids, sulphides or proteins
• or the oxidation-reduction potential in clean liquids or liquids containing
solids, sulphides or proteins which may present low conductivity.

Technical Data
Pipe + Transmitter
Pipe diameter DN25-110 mm (DN<25 mm with reduction)
pH measurement
Measuring range 0-14 pH C A
Accuracy ±0.05 pH
ORP measurement
Measuring range -2000 to +2000 mV
Accuracy ±3 mV
Temp. measurement
Measuring range -40 ºC to +130 ºC
Accuracy ±1 ºC
Temp. compensation automatic (integrated Pt1000) -
reference temperature 25 ºC
Ambient temperature -10 °C to +60 °C
(Operation and storage without probe) B
Medium temp.*
With PVC nut connection 0 up to +50 ºC restricted by the used probe
With PVDF nut connection -20 ºC up to +130 ºC restricted by the used adap-
(on request) tor or probe restriction with adaptor S022 in: A B C
- PVC: 0 ºC up to +50 ºC 86.5 75 276.5
- PP: 0 ºC up to +80 ºC
- Metal: -20 ºC up to +130 ºC
Fluid pressure max PN16
4-20 mA output accuracy ±1%
Environment Technical Data (continued)
Relative humidity ≤ 85%, without condensation Electrical data
Power supply 12-36 V DC, filtered and regulated
* If the specific temperature limits for the probe used and the temperature limits given in the ≤ 25 mA
above technical data chart are different, please use the more restrictive range. Current consumption with
sensor
Reversed polarity of DC Protected
Voltage peak Protected
Output
Current 4-20 mA
max. loop impedance: 1100 Ω at 36 V DC;
610 Ω at 24 V DC; 100 Ω at 12 V DC;
Response time (10%-90%) 5 s. (standard)

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