Oxymitter 4000

Instruction Manual

IB-106-340 Rev. 3.0 December 2003

2.Remove screw (32, Figure 9-4), gasket (33), and cover lock (34) at the probe head. Remove housing cover (27).

3.Connect the heater power leads, the thermocouple leads and the oxygen signal leads at the terminal block. The leads are tagged for polarity.

2-4 ELECTRICAL INSTALLATION (FOR OXYMITTER 4000 WITH SPS 4000)

All wiring must conform to local and national codes.

Disconnect and lock out power before connecting the unit to the power supply.

Install all protective equipment covers and safety ground leads after installa- tion. Failure to install covers and ground leads could result in serious injury or death.

To meet the Safety Requirements of IEC 1010 (EC requirement), and ensure safe operation of this equipment, con- nection to the main electrical power supply must be made through a circuit breaker (min 10 A) which will discon- nect all current-carrying conductors during a fault situation. This circuit breaker should also include a me- chanically operated isolating switch. If not, then another external means of disconnecting the supply from the equipment should be located close by. Circuit breakers or switches must comply with a recognized standard such as IEC 947.

Autocalibration systems will inject gases into the probe and make electronic adjustments with no operator attention required. The SPS 4000 pro- vides solenoid valves and circuitry for calibrating a single Oxymitter 4000 unit.

The SPS 4000 autocalibration system utilizes the Oxymitter 4000’s bidirectional logic contact as a “handshake” signal. Therefore, this signal is not available for alarming purposes.

The following contacts are provided through the autocalibration system:

a.One contact closure per probe from the con- trol room to the SPS 4000 for “calibration ini- tiate”.

b.One contact output per probe from the SPS 4000 to the control room for “in calibration” notification.

c.One contact per probe from the SPS 4000 to the control room for “calibration failed” notifi- cation, which includes output from pressure switch indicating “cal gas bottles empty”.

NOTE

The 4-20 mA signal can be configured to respond normally during any cali- bration, or can be configured to hold the last O2 value upon the initiation of calibration. Factory default is for the 4-20 mA signal to operate normally throughout calibration. Holding the last O2 value may be useful if several probes are being averaged for the purpose of automatic control. Unless several probes are being averaged, always place any control loops using the O2 signal into manual prior to calibrating.

Electrically connect the probe as follows:

d.Remove screws (26, Figure 9-13)securing terminal cover (27). Remove the cover to ex- pose terminal strip (25).

Rosemount Analytical Inc. A Division of Emerson Process Management

Installation 2-15

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Emerson manual Electrical Installation for Oxymitter 4000 with SPS, All wiring must conform to local and national codes
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4000 specifications

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