Multitech MMH900 Betriebsanweisung PDF herunterladen (Seite 109)

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Chapter 7 - Troubleshooting Procedures

7.7 MultiMux Functional Testing Procedures

There are tests available on the MultiMux which check various functions

within the MultiMux logic. These tests will assist you in trouble shooting

problems which are not related to the composite communications

channel or local channel devices. The two tests described below will

check the non-volatile memory used for parameter storage and internal

circuitry, called the Watch-Dog circuitry, which is responsible for keeping

the MultiMux functioning normally.

Table 7-4. MultiMux Functional Testing Pocedures

Note: Executing the Battery/Memory test procedure will result in the

destruction of stored parameters.

1 Before checking the non-volatile memory feature, enter an ATL

command and record all channel parameters.

2 Place the MultiMux in Test mode 8 (i.e., executing the non-volatile

Memory test) by entering the following command:

AT&T8 (hit Return)

(let the test complete its cycle)

The supervisory console will display the following message:

Memory test - This test will destroy all stored onfigurations.

Do you wish to continue? (Y/N)

3 Press the Y key (the message “writing” will appear while the test is

running) and the following message will be displayed on the

supervisory console:

Turn power off for 10 seconds and then back on.

Then enter AT to end test.

4 As the message indicates, turn power off for ten seconds and then

back on. Depending on the condition of the memory, one of the

following messages will appear on your supervisory console:

Non-Volatile Memory Test Passed

or

Non-Volatile Memory Test Failed

Enter the following: AT (hit Return)

1 2 ... 104 105 106 107 108 109 110 111 112 113 114 ... 199 200

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Campbell CVF4 Instrukcja Obsługi (42 strony)

Marka: Campbell | Kategoria: No info | Rozmiar: 1.39 MB |

Angielski

Spis treści

INSTRUCTION MANUAL

1

WARRANTY AND ASSISTANCE

3

Table of Contents

4

Figures

5

CMP21-L Pyranometers

8

4. Quickstart

9

4.2 Mounting

10

5. Overview

13

6. Specifications

14

6.2 CVF3 Ventilation Unit

15

6.3 CVF4 Ventilation Unit

15

7. Installation

16

7.2 Wiring

19

7.2.2 CMP6 and CMP11 Wiring

20

7.2.3 CMP21 Wiring

21

7.3 Programming

22

7.3.3 Example Programs

25

8. Maintenance

30

8.2 Changing the Desiccant

31

8.3 Check Sensor Output

31

9. Troubleshooting

32

Ventilator

34

A.3 Installation

35

A.3.1 CVF3

36

Ø 7 mm (2x)

38

A.4 Wiring

40

A.5 Maintenance

40

A.5.2 CVF4

41

Campbell CVF4 Instrukcja Obsługi (27 strony)

Marka: Campbell | Kategoria: No info | Rozmiar: 0.98 MB |

Angielski

Spis treści

Instruction Manual

1

WARRANTY AND ASSISTANCE

3

Important User Information

4

Declaration of Conformity

6

Table of Contents

8

1. Introduction

10

1.1 CVF4 top side

11

1.2 CVF4 bottom side

11

2. Installation

12

Ø 7 mm (2x)

13

Instruction Manual - CVF4

14

VENTILATION UNIT CONNECTION

15

3. Accessories

16

3.3 CMF4 Mounting Fixture

17

3.4 CMB 1 Mounting Bracket

17

4. Maintenance

20

5. Speciﬁcation

22

6. Trouble shooting

24

7. Customer support

26

HEAD OFFICE

27

SALES OFFICES

27

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