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| 型号： | PAXLCL00 |
| 厂商： | Red Lion Controls |
| 文件页数： | 5/8页 |
| 文件大小： | 0K |
| 描述： | METER CURRENT LOOP 3 1/2-DIGIT |
| 产品目录绘图： | PAX Lite Series PAX Lite Series Cut Out |
| 标准包装： | 1 |
| 系列： | PAX®LITE |
| 类型： | 过程多用表（4-20mA 回路） |
| 测量范围： | 4-20mA 回路 |
| 显示器样式： | 红色字符，黑色背景 |
| 显示器类型： | LED |
| 显示器正面尺寸： | 3.80" L x 1.95" W（96.5 x 49.5mm） |
| 显示器位数： | 3.5 |
| 显示器位数 - 高度： | 0.560"（14.22mm） |
| 背光： | 无 |
| 安装类型： | 面板安装 |
| 端子： | 端接块 |
| 电源电压： | 85 ~ 250VAC |
| 产品目录页面： | 2853 (CN2011-ZH PDF) |
| 其它名称： | RLC112 |
EMC INSTALLATION GUIDELINES
Although this meter is designed with a high degree of immunity to Electro-
Magnetic Interference (EMI), proper installation and wiring methods must be
followed to ensure compatibility in each application. The type of the electrical
noise, its source or the method of coupling into the unit may be different for
various installations. Listed below are some EMC guidelines for successful
installation in an industrial environment.
1. The meter should be mounted in a metal enclosure, which is properly
connected to protective earth.
2. Never run Signal or Control cables in the same conduit or raceway with AC
power lines, conductors feeding motors, solenoids, SCR controls, and
heaters, etc. The cables should be run in metal conduit that is properly
grounded. This is especially useful in applications where cable runs are long
and portable two-way radios are used in close proximity or if the installation
is near a commercial radio transmitter.
3. Signal or Control cables within an enclosure should be routed as far away as
possible from contactors, control relays, transformers, and other noisy
components.
4. In extremely high EMI environments, the use of external EMI suppression
devices, such as ferrite suppression cores, is effective. Install them on Signal
and Control cables as close to the unit as possible. Loop the cable through the
core several times or use multiple cores on each cable for additional protection.
3.1 POWER WIRING
AC Power
Terminal 1: VAC
Install line filters on the power input cable to the unit to suppress power line
interference. Install them near the power entry point of the enclosure. The
following EMI suppression devices (or equivalent) are recommended:
Ferrite Suppression Cores for signal and control cables:
Fair-Rite # 0443167251 (RLC #FCOR0000)
TDK # ZCAT3035-1330A
Steward #28B2029-0A0
Line Filters for input power cables:
Schaffner # FN610-1/07 (RLC #LFIL0000)
Schaffner # FN670-1.8/07
Corcom #1VR3
Note: Reference manufacturer ’s instructions when installing a line filter.
5. Long cable runs are more susceptible to EMI pickup than short cable runs.
Therefore, keep cable runs as short as possible.
6. Switching of inductive loads produces high EMI. Use of snubbers across
inductive loads suppresses EMI.
Snubber: RLC#SNUB0000.
Terminal 2: VAC
1
2
115/230
3.2 INPUT SIGNAL WIRING
2-WIRE, EXTERNAL EXCITATION
PAXLCL
2-WIRE, WITH EXCITATION (Series Conn.) 2-WIRE, WITH EXCITATION (Parallel Conn.)
(-)
SUPPLY
-LOOP
(-)
SUPPLY
-LOOP
K1
4-20MA
-LOOP
10-50MA
-LOOP
+LOOP
5
4
3
2
1
(+)
4-20MA
XDUCER
(+) (-)
EXTERNAL LOOP
POWER SUPPLY
24 VDC
AT 50mA
EXCITATION
(+)
4-20MA
K1
10-50MA
-LOOP
+LOOP
PAXLCL
7
6
5
4
3
2
1
(+)
4-20MA
XDUCER
(-)
24 VDC
AT 50mA
EXCITATION
(+)
4-20MA
K1
10-50MA
-LOOP
+LOOP
PAXLCL
7
6
5
4
3
2
1
EXCITATION
(+)
(+)
4-20MA
XDUCER
(-)
4-20mA
4-20mA
4-20mA
-LOOP
(-)
SUPPLY
-LOOP
(-)
SUPPLY
-LOOP
PAXLCL
4-20MA
K1
10-50MA
-LOOP
+LOOP
5
4
3
2
(+)
(+)
10-50MA
XDUCER
(-)
24 VDC
AT 50mA
EXCITATION
(+)
4-20MA
K1
10-50MA
-LOOP
+LOOP
PAXLCL
7
6
5
4
3
2
(+)
10-50MA
XDUCER
(-)
24 VDC
AT 50mA
EXCITATION
(+)
4-20MA
K1
10-50MA
-LOOP
+LOOP
7
6
5
4
3
(+)
EXCITATION
(+)
10-50MA
XDUCER
(-)
1
EXTERNAL LOOP
1
PAXLCL
2
10-50mA
POWER SUPPLY
10-50mA
1
10-50mA
NOTES
1. When shielded wire leads are used, connect the shield to earth ground at the meter and insulate the other end to avoid contact with machine ground.
2. Never run signal leads in conduit, bundles, or race ways with power conductors. Avoid runs close to contactors, relays, solenoids, transformers, and other potential
sources of electrical noise.
5
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