Math Channel 48
8. MATH CHANNEL
Match channel dispalys the mathematical result of the measurement between two probes with identical
measurement configuration and unit.
Channel can only be configured when:
• Both probes are connected and initialized
• Both probes are of the same type (pH, ORP, EC, DO) have same Measure Mode, and Measurement Unit
Notes: Channel data is not logged in the data Log files.
Channel alarms set neither CH1 control nor CH2 control on Hold, when enabled and activated.
Channel & function availability by parameter
Function pH ORP
EC
DO OPDO
EC TDS RES Sal% Sal ppt Sal psu
Difference
☑ ☑ ☑ ☑ ☑ ☑ ☑ ☑ ☑ ☑
Ratio
❎ ❎ ☑ ☑ ☑ ❎ ❎ ❎ ❎ ❎
% Passage
❎ ❎ ☑ ☑ ❎ ❎ ❎ ❎ ❎ ❎
% Rejection
❎ ❎ ☑ ☑ ❎ ❎ ❎ ❎ ❎ ❎
8.1. MATH CHANNEL SETUP
Navigation
• From Menu, use
ud keys to select Math Channel.
• Use Math Channel submenu to enable math function.
Math functions
Function Formula Range
Default
Alarm Low
Default
Alarm High
Difference (a – b) – PHL to +PHL – PHA +PHA
Ratio (a / b) 0.0 to 500.0 0.0 100.0
% Passage (a / b) × 100 0.0 % to 500.0 % 0.0 % 100.0 %
% Rejection [1 – (a / b) ] × 100 – 500.0 % to +500.0 % 0.0 % 100.0 %
a = main Measurement (CH1)
b = main Measurement (CH2)
PHL =
Probe High Limit PHA = Probe High Alarm
Low and High alarms can be set on the channel.