Chapter 5 maintenance, 0 introduction, 1 fuse replacement – SIGMA SQM-160 User Manual

Page 31

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Chapter 5

Maintenance

5-1

5.0 Introduction

W

ARNING

: There are no user adjustments, or serviceable parts, inside the SQM-160.

For maintenance or repair, contact

Sigma Instruments
1318 Duff Drive
Fort Collins, CO 80524 USA
970-416-9660

5.1 Fuse Replacement

W

ARNING

: Remove the power cable before replacing the fuse.

The SQM-160 is shipped with a ½ A Fuse for use with 90–120 VAC. If your line voltage
is 180–240 VAC, replace the fuse with the ¼A fuse included with your SQM-160.

W

ARNING

: Always replace the Line Fuse with the same size and type fuse

specified above.

F u s e 1 / 2 A S B a t 1 2 0 V A C
F u s e 1 / 4 A S B a t 2 4 0 V A C

Line Fuse

M a n u f a c t u r e d B y

Σ

M o d e l N o . S Q M - 1 6 0

Ser No. 80901

i n s t r u m e n t s

S i g m a

Sensor 1 Sensor 2

RS-232

Option A Card

Relay I/O

Option B Card

2 2

0

1

1

0

1

0

Ground

Rate

T h i c k

3

4

5

6

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