Lumasense-technologies ISR 12-LO Manual de usuario descargar pdf (Pagina 25)

IMPAC pyrometers ISR 12-LO · IGAR 12-LO

13 Trouble shooting

Before sending the pyrometer for repair, try to find the error and to solve the problem with the help of the

following list.

Temperature indication too low

• Incorrect alignment of the pyrometer to the object

⇒ New correct alignment to achieve the max. temperature signal (see 6.2)

•

Incorrect focusing of the optics

⇒ Focus correctly to the measuring distance, if necessary change lens (see 5.4, 6.2)

•

Emissivity slope set too high

⇒ Set lower correct emissivity slope corresponding to the material (see 9.1

Tempera

ture indication too high

• Emissivity slope set too low

⇒ Set lower correct emissivity slope corresponding to the material (see 9.1)

•

The measurement is influenced by reflections of hot machine parts

⇒ Use mechanical construction to avoid the influence of the interfering radiation (sighting tube)

Measuring errors

• Indicated temperature is immediately 1° below beginning of temperature range. Contamination of the

lens or broken fiber.

⇒ Clean lens or control the fiber. Recommendation: use of air purge (see 5.5)

•

Indicated temperature is immediately 1° below beginning of temperature range, although the air purge

unit is used. Probably compressed air is not clean or air failed

⇒ Clean the lens and use clean, dry and oil free compressed air

• HF-interferences

⇒ Correct the connection of the cable shield (see 4)

14 Data format UPP

(Universal Pyrometer Protocol)

The data exchange occurs in ASCII format with the following transmission parameters:

The data format is: 8 data bits, 1 stop bit, even parity (8,1,e)

The device responds to the entry of a command with: output (e.g. the measuring value) + CR (Carriage Re-

turn, ASCII 13), to pure entry commands with "ok" + CR.

Every command starts with the 2-digit device address AA (e.g. "00").

This is followed by 2 small command

letters (e.g. "em" for level of emissivity

ε), finished with CR

This is followed, if necessary for that command, by the ASCII parameter "X". If this parameter "X" is omitted,

then the device resets with the current parameter.

A “?“ after the small command letters answers with the respective settings (only at setting commands, not at

enquiry commands).

Example: Entry: “00em“ + <CR>

The emissivity setting (

ε) of the device with the address 00 is returned

Answer: “0970“ + <CR> means Emissivity = 0.97 or 97.0%

Description Command Parameters

Reading temperature

value:

AAms Output: XXXXX (dec., in 1/10 °C or °F)

in the selected measuring mode

(77770 = warm-up period of sensor or sensor heating failed

88880 = temp.-overflow,

80000 = targeting light on (only ISR 12-LO))

Reading temperature

value repeated:

AAmsXXX XXX = 001 ... 999 (XXX = number of measuring values)

Reading measuring

values:

AAek Output: XXXXXYYYYY (dec., in 1/10 °C or °F)

XXXXX = mono temperature;

YYYYY = ratio temperature

(77770 = warm-up period of sensor or sensor heating failed

88880 = temp.-overflow,

80000 = targeting light on (only type ISR 12-LO))

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 59 60

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