Dimensions; Module Installation - Signet 9900 Operating Instructions Manual

Dimensions

Panel Mount
3-9900-1P
99.06 mm
(3.90 in.)
29.97 mm
(1.18 in.)
91.44 mm
(3.60 in.)
8.13 mm
(0.32 in.)
Side View
Field Mount
3-9900-1
107 mm
(4.21 in.)
NOTE: 3-8051-X Integral Mounting Kit sold separately.
3-9900.396 Angle Adjustment Adapter Kit
88.90 mm
(3.50 in.)
88.90 mm 3.50
(3.50 in.)
99.06 mm
(3.90 in.)
54.10 mm
(2.13 in.)
Top View
44.45 mm
(1.75 in.)
24.13 mm
(0.95 in.)
88.90 mm
(3.50 in.)
(3-8051-X shown)
25°
0.68 mm
Ref.
(0.27 in.)

Module Installation

Base Unit
Relay Module
Conductivity/
(Panel Mount
Resistivity
Only)
Module
If the 9900 Base Unit will be mounted in a panel, the
plug-in modules may be installed either before or after
the base unit is mounted. If the 9900 Base Unit will be
mounted using the wall mount accessory kit (3-9900.392),
install plug-in modules fi rst.
If installing both the Conductivity/Resistivity
(Cond/Res) and the H COMM Modules, install the
H COMM Module fi rst, then the Cond/Res Module on
top of it (see illustration on page 5).
CAUTION
Exercise care when installing modules.
Do not bend connecting pins.
To install modules:
Remove power from the 9900. Carefully align pins and
connectors (do not bend connecting pins) and push
module fi rmly into place, then attach with screw(s)
(except H COMM Module).
CAUTION
LOOP as well as DC power MUST be removed
BEFORE installing H COMM Module.
To remove modules:
Remove power from the 9900.
For Relay, Cond/Res, and 4 to 20 mA Output Modules,
unplug connectors, remove screw(s), and carefully pull
module straight out from the base unit. Do not bend the
connecting pins.
For H COMM Module, squeeze the tabs on the bottom
edge, grasp the module and pull straight out. Do not bend
the connecting pins.
For Batch Module, remove the Relay module. Loosen
bottom screw of Batch module. Carefully grip and squeeze
the tabs at the top of the module to release. Pull module
away from the unit. Do not bend the connecting pins.
WARNING
Relays may be connected to external
high-voltage power sources or multiple power
sources creating an electrocution hazard.
H COMM
Module
9900 Transmitter 3