Electrostatic Discharge (Esd) Considerations - Hach 9186 Instrument Manual

Installation
Figure 9 Connecting ac Power with Customer-supplied Power Cord
RP2
K6
9180
AMP
V1.03
Ic4
1. Power Terminal
Figure 10 Connecting ac Power with Customer-supplied Switch Box
RP2 J1
K6
K5
9180
AMP
V1.03
Ic4
RP1
IC2
1. Power Terminal
4.4.2

Electrostatic Discharge (ESD) Considerations

Important Note: The analyzer
circuit board components are
EXTREMELY sensitive to static
electricity damage in a powered or
unpowered state. Do not touch
circuit boards or its components
without wearing a grounded wrist
strap.
16
K2
P1
Temp +
Temp –
K9
Ref
Counter
Work
Aux
J1
K5
RP1
K4
IC2
K2
J1
P1
IC1
C8
Temp +
L2 Model : 09125-A-2000
Temp –
Serial No : 0104 549
C6
K9
Ref
Counter
Vac : 100 - 240 V
Work
Z6
Wiring located behind the guide plate shall be
Aux
rated at 80 C (176 F) or higher.
K4
2
Delicate internal electronic components can be damaged by static electricity,
resulting in degraded instrument performance or eventual failure. Take the
following steps to prevent ESD damage to the instrument:
• Before touching any instrument electronic components (such as printed circuit
cards and the components on them) discharge static electricity from your
body. This can be accomplished by touching an earth-grounded metal surface
such as the chassis of an instrument, or a metal conduit or pipe.
RE1
V1
V2
J1 RE3
V3
V4
IC1
C8
Ind : D
L2 Model : 09125-A-2000
Serial No : 0104 549
C6
Vac : 100 - 240 V
Z6
Wiring located behind the guide plate shall be
rated at 80 C (176 F) or higher.
2
2. Power Cord Strain Relief
RE1
V1
V2
RE3
V3
V4
Ind : D
2. Conduit Strain Relief
1
1