Stratos Multi E401N
64
5.7 Process Variable pH
Note:
Function check (HOLD) is active.
Note:
After changing the process variable or measuring mode, Stratos Multi retains its settings but
needs to be reconfigured.
Selecting a Memosens pH Sensor
Parameter Setting
Sensor Selection [I] [II]
Sensor Selection [I]
Selection of the Memosens pH sensor connected to the RS-485 interface (terminals 1 … 5):
Parameter:
Auto or pH
Mode:
Memosens
Functionality:
pH, ISFET, or pH/ORP (depending on sensor type)
Selecting a Second Memosens pH Sensor
Parameter Setting
Sensor Selection [I] [II]
Sensor Selection [II]
Selection of a second Memosens pH sensor connected to the MK-MS 095N measuring module:
Module:
MK-MS
Parameter:
pH
Mode:
Memosens
Functionality:
pH, ISFET, or pH/ORP (depending on sensor type)
Adjustable parameters for Memosens pH sensors
Parameter Setting
[I] [II] Memosens pH
Input Filter
Pulse Suppression
Enable/disable suppression of interference pulses.
Sensor Data
Sensoface
Enable/disable display of Sensoface messages and icons.
Sensor Monitoring Details
Option to enter individual limits for monitoring slope and
zero point.
Enable/disable Sensocheck sensor monitoring. Set whether
Sensocheck should generate failure or maintenance required
messages.
Option to enter individual values before a message is trig-
gered for response time, sensor wear, sensor operating time
and SIP counter; also CIP counter with pH/ORP sensors; also
operating point and leakage current with ISFET sensors.
Cal Presettings
Presetting of calibration mode and corresponding parameters, configuration of drift check
and calibration timer.
Calibration Presettings, p. 68
TC Process Medium
Temperature Compensation of Process Medium, p. 69
ORP/rH Value
With Memosens pH/ORP sensor:
Selection of reference electrode:
Ag/AgCl, KCl 1 mol, Ag/AgCl, KCl 3 mol, Hg,Tl/TlCl, KCl 3.5 mol, Hg/Hg
2
SO
4
, K
2
SO
4
sat
Enable/disable ORP conversion to standard hydrogen electrode SHE.
Calculate rH with or without factor.
Delta Function
Display deviations from a preset value (delta value):
Output value = measured value – delta value
Messages
Enable/disable messages for the separate process variables, or specify individual limits.