Operation; Rtd Connections; Communications Port Connections; Measure Rtd Values - Test Equipment Depot Druck DPI 811 User Manual

Operation

This section gives examples of how to connect and use the
instrument. Before you start:
• Read and understand the "Safety" section.
• Do not use a damaged instrument.
Operation - RTD connections
To prevent instrument errors, make sure that the RTD
connections (A1-item [10]) are correct. In the examples
that follow 2W, 3W, and 4W identify the 2, 3, and 4 wire
connections.
Operation - Communications port connections
Use the communications port (A1 - item [9]) to attach an
IDOS Universal Measurement Module (UMM).
When you attach the cable from a UMM (Figure 7/8), the
instrument automatically changes the menus to give you
all the applicable options (Table 2/3).
Operation - Measure RTD values
To measure the temperature or resistance values of an
RTD:
1. Connect the instrument (Figure 1) and, if necessary,
adjust the Set Up (Table 1).
2. Select the RTD or Ohms input task from Select Task
(Table 2/3) and, if necessary, adjust the Settings
(Table 4).
a) Temperature
Figure 1: Example configuration - To measure the
temperature or resistance of an RTD
6
- [EN] English
Pt100
°C
Settings
b) Resistance
The display shows the number of RTD connections.
= Four-wire RTD attached.
If this symbol does not agree with the number of RTD
connections:
• Make sure that the RTD connections are correct.
• Make sure that the wires and the sensor are
serviceable.
Operation - Change the output values
When the output operation is set up (Table 5), use one of
these procedures to change the output values:
Table 7: Procedures to change the output
Output
,
Example procedure ("Nudge" output):
Display:
RTD output
Sk1 = Edit
Sk2 = Settings
Display:
RTD output
Settings
Procedure
Select Edit (■ ■) and/or use the ▲ ▼ buttons.
See the example below.
Select Start/Stop (■ ■) or use the ▲ ▼ buttons
to make the step changes manually.
Select Start/Stop (■ ■).
1 Edit 2
■ ■ ■ ■
5 6
▲ ▲
101.00 102.00
▼ ▼
Increment = 1 (Table 5)
3 Edit 4
▲
+100.00
▼
K345 Issue 4