Siemens Pacemaker UM344-2 Bedienungsanleitung PDF herunterladen (Seite 24)

UM344-2 INITIAL TRANSMITTER SET-UP

September 1995

3.0 INITIAL TRANSMITTER SET-UP

Before operating a Model 344 on-line, the instrument should be commissioned using the MXC and set-up

either at the bench or in the field. Commissioning consists of checking that the transmitter and the loop

are operational and that all configuration information is correct. This section contains step-by-step

procedures describing commissioning of the transmitter. For an in-depth discussion of transmitter

configuration, refer to Section 5.1 On-Line Operation.

3.1 COMMISSIONING TRANSMITTER ON THE BENCH OR IN THE FIELD

A Model 344 can be commissioned either before or after installation into the loop. Commissioning on the

bench before installation is suggested. A complete transmitter functional test can be performed and

configuration procedures can be practiced. If commissioning after installation, install the transmitter as

described in Section 4 and then return to this section. Configuration data for the transmitter will be

needed.

To commission the transmitter on the bench, make the connections shown in Figure 3-1. To commission

the transmitter in the field, make the connections shown in Figure 3-2 or those shown in Section 4.3.3,

Figure 4-1, 4-2, or 4-3. Connect the MXC in the loop either across the current sense resistor or, often

more conveniently, across the two signal terminals of the Model 344 (non-hazardous area only).

3.1.1 Test Equipment Needed

TEST EQUIPMENT DESCRIPTION (see Specifications, Section 8.3.2)

Power Supply 12 to 42 Vdc, see Section 4.3.4

Multimeter:

Current

Voltage

Accuracy of at least .05% to check calibration

Range: 4 to 20 mA to measure loop current

Range: 10-40 Vdc to measure power supply and loop voltage

Current Sense Resistor

250 to 1100Ω to support HART digital communications

Configuration Device Moore XTC Communicator (MXC)

User Configuration Configuration data for transmitter under test

NOTE

Test equipment should be 2 to 10 times more accurate than the desired

transmitter accuracy.

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 182 183

Keine Kommentare

Siemens Pacemaker UM344-2 Bedienungsanleitung Seite 24