Description and Specifications
Instruction Manual
February 2014
LIQ_MAN_6081-P
2
Description and Specifications
Radio Frequency:
2.4 GHz DSSS
Transmission distance - line of sight:
about 600 ft (ideal RF conditions and power
module condition)
Power:
Lithium thionyl chloride long life power module
1.4 Functional Specifications
pH Range:
0 to 14
ORP Range:
-1400 to +1400mV
Compatible with Rosemount Analytical SMART pH sensors calibrations/standardization:
The automatic buffer recognition uses stored buffer values and their temperature curves for
the most common buffer standards available worldwide. The transmitter also performs a
stabilization check on the sensor in each buffer.
A manual two-point calibration is made by immersing the sensor in two different buffer
solutions and entering the pH values. The microprocessor automatically calculates the slope
which is used for self-diagnostics. An error message will be displayed if the pH sensor is faulty.
This slope can be read on the display and/or manually adjusted if desired.
An on-line one-point process standardization is accomplished by entering the pH or ORP
value of a grab sample.
The following calibration methods are supported:
- Two point calibration with Low and High buffer (pH only)
- Two point calibration with Automatic Buffer recognition (pH only)
- Single point standardization
- Single point Temperature Adjustment
- Automatic calibration upon live connection to RAI SMART pH sensors and upload of
stored cal data to transmitter
Automatic Temperature Compensation:
External 3-wire Pt100 RTD or Pt1000 RTD located in
the sensor, compensates the pH reading for temperature fluctuations. Compensation covers
the range -10 to 150 °C (14 to 302 °F). Manual temperature compensation is also selectable.
Accuracy:
±1 mV @ 25 °C ±0.01 pH
Repeatability:
±1 mV @ 25 °C ± 0.01 pH
Information and Status:
Information screens display faults and warnings, radio transmission
status, network ID number, Power Module voltage, transmitter model, and software version.
Diagnostics:
The internal diagnostics can detect:
RTD Failure
Glass Low Failure
Glass High Failure
Broken Glass Fault
Reference High Failure
CPU Error
High Temperature Warning
Low Temperature Warning
Glass Impedance High Warning
Glass Impedance Low Warning
Reference Impedance High Warning
EEPROM Warning
Sense Line Open Warning
Factory Cal Warning
Keyboard Warning
Once a fault or warning is detected, the display will show a message describing the problem.
Temperature Range:
-10 to 150°C (PT100 and PT1000)
Display:
2-line, 16 character display supports display of pH and mV units. Display shows
temperature.
Approvals:
RFI/EMI: EN-61326
NOTE on ESD
“Change due to disturbance caused by electrostatic discharge will be less than 0.2 pH.”
