Rosemount 890, Инструкция по эксплуатации

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U
NPACKING AND
I
NSTALLATION
2-3
January 2000 Rosemount Analytical 748460-A
Accessory kits are available which include one of the following: 1) a 10-foot North
American power cord set and four enclosure support feet (PN 654008) for bench top
use, 2) the power cord only (PN 634061), or 3) the four feet only (PN 634958). If the
instrument is permanently mounted in an open panel or rack, use electrical metal
tubing or conduit.
Refer to Figure 2-2 and Drawings
654853, 652715 and 656139. Route
the power cable through the cable
gland and connect the leads to TB1.
After connecting the leads, tighten
the cable gland adequately to
prevent rotation or slippage of the
power cable. Since the rear
terminals do not slide out
with<D%0> the chassis, no excess
power cable slack is necessary.
F
IGURE
2-2. C
ABLE
G
LAND
C
ONNECTION
2.4.2 R
ECORDER
C
ONNECTIONS
Recorder connections are made to the rear panel. Refer to Drawings 654853, 652715
and 656139. Route the recorder cable through the cable gland and connect to TB2.
Recorder and interconnection cables should meet the following requirements:
V
OLTAGE
O
UTPUT
: 0
TO
+5 VDC
•
Maximum distance from recorder to analyzer: 1000 ft. (305 m)
•
Recorder input impedance: >5000 ohms
•
Customer-supplied cable: 2-conductor, 20 AWG (min.), shielded
I
SOLATED
C
URRENT
O
UTPUT
: 0
TO
20
M
A
OR
4
TO
20
M
A (
KEYBOARD
PROGRAMMABLE
)
•
Maximum load impedance: 700 ohms
C a s e W a l l
I N T E R I O R E X T E R I O R
C a b l e
Nu t G l a n d N u t