Emerson 6081-P Specifications Wireless, Functional Specifications, PH Range 0 to

MODEL 6081-P pH/ORP	SECTION 1.0
	DESCRIPTION AND SPECIFICATIONS

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.”

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