6 Specifications
Section 2: Description and Specifications Instruction Manual
April 2017 LIQ-MAN-1066
pH/ORP (Codes – P)
For use with any standard pH or ORP sensor. SMART pH sensor with SMART pre-amplifiers from
Rosemount. Measurement choices are pH, ORP, or Redox. The automatic buffer recognition fea-
ture uses stored buffer values and their temperature curves for the most common buffer standards
available worldwide. The transmitter will recognize the value of the buffer being measured and
perform a self stabilization check on the sensor before completing the calibration. Manual or auto-
matic temperature compensation is menu selectable. Change in pH due to process temperature
can be compensated using a programmable temperature coefficient.
Performance Specifications - Transmitter (pH input)
Measurement Range [pH]: 0 to 14 pH
Accuracy: ±0.01 pH
Buffer recognition: NIST, DIN 19266, JIS 8802, and BSI.
Input filter: Time constant 1 - 999 sec, default 4 sec.
Response time: 5 seconds to 95% of final reading
Recommended Sensors for pH:
All standard pH sensors. Supports SMART pH sensors from Rosemount.
Performance Specifications - Transmitter (ORP input)
Measurement Range [ORP]: -1400 to +1400 mV
Accuracy: ± 1 mV
Input filter: Time constant 1 - 999 sec, default 4 sec.
Response time: 5 seconds to 95% of final reading
Recommended Sensors for ORP: All standard ORP sensors
2.3
2.3.1
2.3.2
FIGURE 2-2. General purpose and high performance pH sensors 3900, 396PVP
and 3300HT
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