Table of Contents
Advertisement
Paramagnetic O2 Purity Analyzer
3.3.2 Electrical Connections—Control Unit
CAUTION:
FOR SAFE CONNECTIONS, MAKE SURE THAT THERE
IS NO UNINSULATED WIRE EXTENDING OUTSIDE OF
THE CONNECTORS.
ALL CABLES AND CONNECTORS MUST BE IN GOOD
CONDITION WITHOUT ANY BROKEN WIRES OR
BENT PINS.
3.3.2.1 P
RIMARY
The power cord receptacle and fuse block are located in the same
assembly. Insert the female plug end of the power cord into the power
cord receptacle. Use only the power cord supplied with this instrument.
WARNING:
POWER IS APPLIED TO THE INSTRUMENT'S
CIRCUITRY WHENEVER THE INSTRUMENT IS
CONNECTED TO THE POWER SOURCE. THERE IS NO
ON/OFF SWITCH THAT DISCONNECTS POWER TO
THE INTERNAL BOARDS, TEMPERATURE
CONTROLLER AND OTHER COMPONENTS.
THE STANDBY SWITCH
FOR SWITCHING POWER ON OR OFF TO THE
DISPLAYS AND OUTPUTS ONLY.
The analyzer requires a 90 - 130, or 200 - 240 VAC, 47/63 Hz power
source. A switch on the rear panel is used to select the proper input power.
3.3.2.2 F
I
USE
NSTALLATION
The fuse block, at the right of the power cord receptacle, includes US
3 AG and European 5-20mm size fuses. A jumper replaces the fuse in the
neutral line when the fuse block is installed in the US mode. Be sure to
install the fuse block in the proper mode as part of installation. (See Fuse
Replacement in Chapter 5, Maintenance.)
3.3.2.3 50-P
IN
The large 50-pin connector on the back of the panel is the access point
for all alarm relays and analog outputs. Use a 50-wire shielded cable for
this interface.
Figure 3-5 shows the pin layout of the Equipment Interface
connector. The arrangement is shown as seen when the viewer faces the
rear panel of the analyzer. The pin numbers for each input/output function
Teledyne Analytical Instruments
I
P
NPUT
OWER
D-E
I
QUIPMENT
NTERFACE
Installation
ON THE FRONT PANEL IS
C
ONNECTOR
29
Advertisement
Table of Contents
