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MODEL 6081-P pH/ORP SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
2
1.3 SPECIFICATIONS - WIRELESS
Output: WirelessHART V7
Transmit Rate: User selectable, 1/sec. to 1/60 min
(via 1420 Wireless Gateway or AMS)
Measurement update rate: 1/sec. to 1/10 min
Antenna: PBT/PC integrated omni-directional antenna
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 auto-
matically 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, net-
work ID number, Power Module voltage, transmit-
ter 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 regarding ESD: “Change due to disturbance caused by electrostatic discharge will be less than 0.2 pH.”