The new DRLP Series of loop powered 2-wire
transmitters consists of seven family groups with a
total of 48 transmitter models that interface to a wide
variety of voltage, current, temperature and position
measuring devices. The DRLP Series provides
superior specifications such as ±0.03% accuracy, five
poles of filtering, 1500 Vrms continuous isolation, low
output noise, and much more.
The DRLP Series 2-wire transmitter conditions and
sends analog signals from sensors located in the
“field” to monitoring and control equipment, usually
computers, located thousands of feet away in central
control areas. The DRLP Series accepts a wide
range of inputs, including millivolt, volt, milliamp,
thermocouple, RTD, potentiometer, and slide wire.
It operates on power from a 2-wire signal loop and
modulates the supply current to represent the input
signal within a 4 to 20-milliamp range.
Two-wire transmission loops are very economical
methods for connecting sensors to distant control
rooms. Since the DRLP Series operates from the
signal loop current, no additional, expensive power
and wiring are required. Only low cost, twisted pair
wiring is needed.
DRLP Loop Drive Capability
The DRLP Series transmitter’s wide range of loop
supply voltage (10.8V to 60V) makes it a versatile
device which can be used in most any current loop. The
maximum loop resistance is determined by subtracting
the transmitter’s minimum loop supply voltage from the
total loop supply voltage and dividing the result by the
maximum loop current (see graph).
The low loop supply voltage of 10.8V allows the DRLP
to be used in applications with low output power
supplies and the high Loop Supply Voltage of 60V allows
use in applications with long distance current loops.
COMMON SPECIFICATIONS Input Protection Continuous: 240 Vrms maximum Transient: ANSI/IEEE C37.90.1 CMV, Input to Output Continuous: 1500 Vrms maximum Transient: ANSI/IEEE C37.90.1 Noise Output: 100 kHz:3µArms Output Range: 4 to 20 mA Output Protection Reverse Polarity: Continuous Over-Voltage: 240 Vrms continuous Transient: ANSI/IEEE C37.90.1 Loop Supply Voltage: 10.8V to 60V Loop Supply Sensitivity: ±0.0005%/V Turn-On Delay: 400 ms Environmental Operating Temperature Range:
-40 to 80°C (-40 to 176°F) Storage Temperature Range:
-40 to 80°C (-40 to 176°F) Relative Humidity: 0 to 95% non-condensing Emissions EN61000-6-4: ISM, Group 1 Radiated, Conducted: Class A Immunity EN61000-6-2: ISM, Group 1 RF: Performance A ±0.5% span error ESD, EFT: Performance B Mechanical Dimensions: 75 H x 22.5 W x 105 mm D
(2.95 x 0.89 x 4.13") Mounting: DIN EN 50022 35 x 7.5 mm or
35 x 15 mm rail
See attached PDF for detailed Transmitter Specifications
† All dollar amounts on this site are shown in US currency.
Ordering Example: (1) DRLP-MV1 ±10 mV Input Range, $225.00, plus (1) RAIL-35-1 35 mm DIN rail, 1 m (3.3') length, $10.00, $225.00 + 10.00 = $235.00
Keywords:Isolated DIN Rail Mount Loop-Powered 2-Wire Signal Conditioners
