Ahlborn ALMEMO 2390-3 Скачать руководство пользователя страница 21 | Manualshive

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Ahlborn ALMEMO 2390-3 Скачать руководство пользователя страница 21

8. TROUBLE-SHOOTING

Measuring instrument ALMEMO

®

2390-3 can have a great many different sen-

sors and peripherals connected to it. Given these numerous possibilities the
device may in certain circumstances not behave quite as expected. The cause
of such unexpected behavior is only very rarely a device defect; more usually it
is incorrect operation by the user, an incorrect setting, or incorrect cabling. In
such event try to pinpoint and clear the problem with the aid of the following
tests :

Error :

Either no display or all display segments light up continuously.

Remedy :

Check the power supply, switch off and then on again !

Error :

Measured values are incorrect.

Remedy :

Check the channel programming exactly (especially, if the ´

CORR

´

arrow lights up, the base and zero point); scan the entire
programming using AMR-Control, or terminal and command P15
(see Manual, Sec. 6.2.3) and f1 P15 (see Manual, Sec. 6.10.1) !

Error :

Fluctuating measured values or segment test or the system
hangs in mid-operation.

Remedy :

Check the cabling for inadmissible electrical connections,

disconnect the external power supply and the analog output, unplug
the sensor and replace with a hand-held sensor and operate them
in air or dummies (for thermocouples short-circuit A-B, for Pt100
sensors, 100-

Ω

resistor); if these steps succeed in clearing the

error, then check all wiring, if necessary, insulate the sensor, use an
electrically isolated power supply, eliminate interference by using
shielded or twisted wiring.

Error :

´

CALErr

´ is displayed when device is switched on.

Remedy :

The calibration of a measuring range may have become misadju-

sted; the device must be recalibrated at the factory.

If, after performing the above-listed checks and remedial steps, the device still
fails to behave as described in the instructions, it must be returned to our facto-
ry in Holzkirchen, accompanied by a explanatory note and error description.
Complaints not accompanied by explanation and error description cannot be
processed

ALMEMO



2390-3

21

Trouble-shooting

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Содержание ALMEMO 2390-3

Страница 1: ...Operating instructions Universal measuring instrument ALMEMO 2390 3 V2 0 11 12 2003 ALMEMO 2390 3 1...

Страница 2: ...nal voltage supply 11 3 3 Switching ON and OFF 11 4 CONNECTING THE SENSORS 12 4 1 Sensors 12 4 2 Measuring inputs and additional channels 13 5 DISPLAY 14 6 SENSOR PROGRAMMING 15 6 1 Measuring range 15...

Страница 3: ...8 TROUBLE SHOOTING 21 9 ELECTROMAGNETIC COMPATIBILITY 22 APPENDICES 23 Technical data 23 Product overview 23 Your contact partners 24 ALMEMO 2390 3 3 Table of contents...

Страница 4: ...Interface modules RS232 optic fiber Centronics Manual Section 5 2 The entire ALMEMO networking system Manual Section 5 3 All functions and their operation via the interface Manual Section 6 Complete...

Страница 5: ...ALMEMO measuring instrument and to interchange these without the need for any extra settings Function channels Maximum minimum and average values and differences at certain measuring points can be pr...

Страница 6: ...easured value for the selected measuring point is shown continuously with auto zero and as and when necessary with measured value correction With most sensors sensor breakage is detected automatically...

Страница 7: ...ctor To avoid excessive data flow the data output of certain channels can as and when necessary by means of the print cycle factor be restricted or altogether disabled It is also possible to summate p...

Страница 8: ...minimum value HOLD Freeze measured value CLEAR Set measured value to zero Delete Max Min Hold 7 Battery compartment rear of dev 9 volt alkaline manganese battery 6F22 Space for reserve battery 5 LCD...

Страница 9: ...s M0 and M1 and then select measuring point M2 see 7 5 8 Evaluating a measuring operation call up maximum minimum values by pressing MAX or MIN key 6 delete maximum and or minimum values by pressing C...

Страница 10: ...n by the arrow as shown in the illustrations 2 Connect the battery using the clip Accidental re verse polarity is prevented by the shape of the connections 3 Use the second battery compartment to stor...

Страница 11: ...being used 3 2 External voltage supply On the right side of the device there is a socket 4 for connecting an external power supply In our range of accessories we offer a mains adapter ZB 2290 NA 12 V...

Страница 12: ...s Additional chan nels are available primarily for humidity sensors temperature humidity dew point mixture ratio or flow probes and chemical probes incorporating a tem perature sensor A single sensor...

Страница 13: ...However sensors combined within one connector and sensors with their own power supply are electrically intercon nected and must therefore be operated in isolation The volta ge applied to the measuring...

Страница 14: ...w 7 V symbol llights up BAT below 6 V L o b A t Checksum error during device calibration Non connected sensors deactivated measuring points Non permitted measuring range Sensor correction or scaling C...

Страница 15: ...iCroSil NiSil N ZA 9020 FSN 200 0 1300 0 C NiSi Fe CuNi L ZA 9000 FSL 200 0 900 0 C FECO Fe CuNi J ZA 9000 FSJ 200 0 1000 0 C IrCo Cu CuNi U ZA 9000 FSU 200 0 600 0 C CUCO Cu CuNi T ZA 9000 FST 200 0...

Страница 16: ...0 100 0 C H dt Partial vapor pressure cap FH A646 0 0 1050 0 mb H UP Enthalpy cap FH A646 0 0 400 0 kJ H En Humid temperature FN A846 30 00 125 00 C P Ht Relative humidity psychr FN A846 0 0 100 0 H...

Страница 17: ...nual Sec 5 1 1 7 1 Selecting the meas value and the measuring point After the device is switched on the MEASURE function is set and measuring point M0 for the first sensor is selected automatically i...

Страница 18: ...LUE function Select the maximum value MAX HOLD MIN MAX CORR M DIM The MIN VALUE function Select the minimum value MIN HOLD MIN MAX CORR M DIM Delete the max min values CLEAR Return to the MEASURE func...

Страница 19: ...or low the sensor will be adju sted and the correction values will be saved in the connector EE PROM see below Deleting the reference value The reference value for a channel can be deleted by pressing...

Страница 20: ...FY A640 O2 101 Example pH probe Zero point adjustment in a buffer solution of 7 00 pH Measured value HOLD MIN MAX CORR M DIM Zero point adjustment CLEAR HOLD MIN MAX CORR M DIM Gain adjustment in a bu...

Страница 21: ...r Fluctuating measured values or segment test or the system hangs in mid operation Remedy Check the cabling for inadmissible electrical connections disconnect the external power supply and the analog...

Страница 22: ...m IEC 61000 4 4 1995 A1 2000 2kV The following advisory notes must be observed when operating the device 1 If the standard sensor is extended 1 5 meters care must be taken to en sure that the measurin...

Страница 23: ...ZB 2290 NA 230 V AC to 12 V DC 200 mA electrically isolated Adapter cable el isol ZB 2290 UK 10 30 V DC to 12 V DC 250 mA Current consumption approx 4 5 mA without input and output modules Housing 18...

Страница 24: ...Your contact partners 24 ALMEMO 2390 3 Appendix...

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