Operator Manual

748223-K June 2002

Model 7003M

a.Sensor Cable

Connect Sensor Cable

The sensor cable used with the Model 7003M may be of any length up to a maximum of 1000 feet (305 m). (See Table 2-1 below.)

The signal cable should be routed through a conduit (customer-supplied) in permanent installations or in cases where the sensor is located more than a few feet from the control unit. (See Table 2-2 below.)

NOTE:

In humid environments, temperature changes can cause moisture to condense in the conduit, resulting in signal noise and corrosion. To minimize the effect of condensation, put desiccant (available locally) inside the conduit before sealing it.

CABLE PART

LENGTH

NUMBER

 

191748

10 Feet (3.1 m)

193265-

Any specified length

SPECL

up to 1000 Feet (305

 

m)

Table 2-1.

Sensor Cables

If conduit used:

1/2 inch NPT female connection on bottom of control unit. (Conduit customer -supplied.

If no conduit used:

Use cable connector assembly (PN 856831) to provide watertight seal. Assembly includes: Aluminum inner sealing grommet for connector compression nut.

Table 2-2. Analyzer Cable

Connections

1.Ensure that power is disconnected and remove rear cover.

2.Install the conduit or cable clamp in the left opening in the bottom rear of the case.

3.Install the sensor cable in the instrument through the cable clamp and tighten the nut on the plug to create a seal around the cable.

4.Refer to Figure 2-2 on page 2-3. Using a flat-blade screwdriver, connect the wires of the sensor cable to the TB2-1, TB2-2, TB2-5 and TB2- 6 on the rear panel of the analyzer.

5.Replace the rear cover if no other connections are to be made. Do not overtighten the cover retaining screws to avoid stripping the threads in the plastic case.

b.Power Connections

Electrical power is supplied to the analyzer via a customer-supplied three conductor cable, type SJT, minimum 18 AWG. Refer to the installation drawing in the rear of this manual.

Jumpers and Fuses

To verify the jumper location for the specified power (115 or 230 VAC) or if the analyzer is to be connected to a different power source, refer to Figure 2-3 on page

2-5and set jumpers and fuse as follows:

WARNING

ELECTRICAL SHOCK HAZARD

Disconnect power to analyzer before con- tinuing.

2-4 Installation

Rosemount Analytical Inc. A Division of Emerson Process Management