User Manual

3-12 SM 04P02B01-01E

Reference Junction Compensation Accuracy

● Procedures

Set all channels to thermocouple type T. Measure 0°C on one of the channels and

check that the display is within the criteria below.

Criterion: 0.3°C to −0.4°C

Calibrated thermocouple wires

0°C standard temperature device

(Model: ZC114 from Coper Electronics Co., Ltd. or equivalent)

+/A –/B

Input terminals

• Use a calibrated thermocouple, and wires of 0.5 diameter or less without a terminal

chip. Also, pay attention to the measurement accuracy.

• Monitor the 0°C standardized temperature bath at all times, and confirm that it is

within 0°C ±0.01°C.

• When using a 0°C standard temperature device, the tip of the thermocouple floats

10 mm off the bottom.

• Perform the test in a stable environment. If drafts are present and may influence

the results, position the equipment to avoid them.

• After connecting the thermocouple, allow a warm-up time of 30 minutes or more

before beginning measurement.

• Always use terminal covers.

• When measuring, filters may be applied.

Display

● Procedures

1. Turn ON the power switch while pressing the

and

CH UP

keys. Menu =

A/D Adjust is displayed.

2. Select Menu = Test, and press the key.

3. Choose Test = Disp and press the

key.

The test pattern is displayed. Each time you press the DISP key the display

pattern changes. For each pattern, check that there are no missing parts,

abnormalities, or other defects. Press the

ESC/?

key to return to the Test = Disp

screen.

* Select using the key. You can hold down the SHIFT key while pressing key to reverse the

key’s action.

● Displayed Pattern

• All pixels lit: status display also lit

• All pixels not lit

• Horizontal stripes: 2 pixels each lit/not lit

• Vertical stripes: 2 pixels each lit/not lit

3.4 Test Procedures