Optek CONTROL 200 - Ph - C210, C211 and C221

C200 HARDWARE
Instruction Manual C200 Part1 A1.doc
optek Danulat GmbH • D-45356 Essen • Germany
page 8
2.2 pH – C210, C211 and C221 only*
Inputs: One (C210 and C221) or two (C211) pH or mV inputs and
solution earth
One (C210 and C221) or two (C211) temperature sensors
Input resistance: Glass: >1 x 10
13

Reference: 1 x 10
13

Range: –2 to 16pH or –1200 to +1200mV
Minimum span: Any 2pH span or 100mV
Resolution: 0.01pH
Accuracy: 0.01pH
Temperature compensation modes: Automatic or manual Nernstian compensation
Range –10 to 200°C (14 to 392°F)
Process solution compensation with configurable coefficient
Range 0 to 100°C (32 to 212°F)
adjustable –0.05 to +0.02%/°C (–0.02 to +0.009%/°F)
Temperature sensor: Programmable Pt100, Pt1000 or Balco 3k
Calibration Ranges
Check value (zero point): 0 to 14pH
Slope: Between 40 and 105% (low limit user-configurable)
Electrode Calibration Modes: Calibration with auto-stability checking
Automatic 1 or 2 point calibration selectable from:
• ABB
• DIN
• Merck
• NIST
• US Tech
2 x user-defined buffer tables for manual entry
2-point calibration or single-point process calibration
* Enables connection to glass or enamel pH and reference sensors and Redox (ORP) sensors
Specifications may be limited by the pH electrode in use. Refer to corresponding
Instruction Manual !
*