Inhaltsverzeichnis
Werbung
Verfügbare Sprachen
Verfügbare Sprachen
2-WIRE TRANSMITTER-REPEATER
• Repeater for 2-wire transmitter 4...20 mA
• Loop-powered 10...35 VDC
• Galvanically isolated 3.75 kVAC
• 1 and 2-channel versions
• For DIN rail mounting
APPLICATIONS:
The PRetrans 5132 transmitter is ideal for galvanic isolation of 4...20 mA current
signals from 2-wire transmitters.
TECHNICAL CHARACTERISTICS:
The voltages V
, V
supply
transmitter supply
higher V
will cause a higher V
supply
The listed voltages for transmitter supply are max. values.
INPUT / TRANSMITTER SUPPLY:
The transmitter supply is floating and dependent on V
V
. The actual transmitter supply may be calculated by using this
drop isolator
expression:
V
= V
- (V
transmitter supply
supply
load
OUTPUT / SUPPLY:
The repeater output is supplied by the 2-wire connection from the external power
supply or loop supply from the receiving equipment. The 4...20 mA signal, which
is transferred from the transmitter, is repeated 1:1. By short-circuit of the input
terminals the output current is limited to 40 mA.
Max output load is calculated after the below expression:
R
= V
- (V
load max
supply
transmitter drop
20
5132
and V
are floating. This means that a
load
.
transmitter supply
, V
(output) and
supply
load
+ V
).
drop isolator
+ V
).
drop isolator
0.02 A
ELECTRICAL SPECIFICATIONS:
Specifications range:
-20°C to +60°C
Common specifications:
Supply voltage ........................................... 10...35 VDC
Vdrop standard ........................................... < 4 VDC
Isolation, test / operation ........................... 3.75 kVAC / 250 VAC
Warm-up time ............................................. 5 min.
Signal / noise ratio ..................................... > 60 dB (0...100 kHz)
Response time (0...90% / 100...10%) ........ ≈ 2 ms
Calibration temperature ............................. 20...28°C
Temperature coefficient .............................. < ±0.01% of span / °C
Linearity error ............................................. < ±0.1% of span
change ............................. ≤ 0.005% of span / V
Effect of V
supply
..................... ≤ 0.5% AC of span/VAC (@ 100 Hz)
AC effect of ripple on V
supply
2-wire transmitter supply,
pin 43...41 .................................................. > 15 VDC (24V
EMC immunity influence ............................ < ±0.5%
Wire size ..................................................... 1 x 2.5 mm
Screw terminal torque ................................ 0.5 Nm
Relative air humidity ................................... < 95% RH (non-cond.)
Dimensions (HxWxD) .................................. 109 x 23.5 x 130 mm
DIN rail ........................................................ DIN 46277
Protection degree (enclosure / terminals) .. IP50 / IP20
Weight ........................................................ 250 g
Input:
Measurement range ................................... 4...20 mA
Min. measurement range (span) ................ 16 mA
Output:
Signal range ............................................... 4...20 mA
Min. signal range (span) ............................. 16 mA
Current limit ............................................... 40 mA
- 5 V
)
supply
load
2
stranded wire
21
Werbung
Kapitel
Inhaltsverzeichnis
