RTD Input Signal Conditioner - Discontinued

DRF-RTD Series

RTD Input Signal Conditioner

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100 Ω Platinum (Pt) RTD Element, 0.00385 Curve
2 or 3 Wire Configuration
0.2% Accuracy
Cable Resistance Compensation up to 10 Ω
Upscale Break Protection
Response Time < 250 mS
Galvanic Isolation Between Input, Output and Power

Description

This product has been discontinued. For a potential replacement, please see TXDIN402, DR-i3P, or DRST-UN.

The DRF series DIN rail signal conditioners are designed to accept a broad range of input signals, such as ac and dc voltage and current, frequency, temperature (thermocouple and RTD), and process transducers, and provide standard process outputs of either 4 to 20 mA, or 0 to 10 Vdc. The DRF series feature a modern housing design, that is easily mounted on standard 35 mm DIN rails. Connections are safely and securely made through pluggable screw terminal connectors, with input and output connections on the opposite sides of the module.

The DRF-RTD RTD signal conditioners accept 2 or 3 wire 100 platinum RTDs as input and provide an isolated 0 to 10 Vdc or 4 to 20 mA output. Models are available with three different power options,
24 Vdc, 120 Vac and 240 Vac.

The DRF-RTD are ideally suited for industrial applications. All models mount on a standard 35 mm DIN rail and provide galvanic isolation between input, output and power up to 3500 Veff (model specific). Module response time is 250 mS or less.

Range Code Table for DRF-RTD

Range Code	Range
-25/75C	-25 to 75°C
0/100C	0 to 100°C
0/200C	0 to 200°C
0/300C	0 to 300°C
0/450C	0 to 450°C
0/600C	0 to 600°C

SPECIFICATIONS

RTD: 2 or 3 wire 100Ω platinum
RTD: α=0.00385
Accuracy: <0.2% full scale
Linearity: <0.1% full scale
Thermal Drift: 250 ppm/°C typical
Response Time: <250 mS (90% of signal)
RTD Excitation: 1 Vdc
Input Impedance: Measured with a "Wheatstone" bridge. Bridge to positive through a 100 . resistance, Bridge to negative through a 10 KΩ resistance

Power: 24 Vdc ±10%, 230 Vac ±10% 50/60 Hz, 115 Vac ±10% 50/60 Hz
Power Consumption: <3.8 VA
Output: 4 to 20 mA and 0 to 10 Vdc

Maximum Voltage Output: 11 Vdc approx.
Minimum Voltage Output: -1 Vdc approx.
Minimum Load Resistance (Voltage): >1 KΩ Maximum Current Output: 22 mA approx.
Maximum Current Output: -1.5 mA approx.
Maximum Load Resistance (current): >400 Ω

Electrical Connections: Plug-in screw terminals
Protection: IP-30

MECHANICAL DIMENSIONS
Weight:
(DC Powered Models): 120 g (4.2 oz)
(AC Powered Models): 200 g (7 oz)
Dimensions:
(DC Powered models):
110 H x 22.5 W x 93 mm D (4.3 x 0.9 x 3.7")
(AC Powered models):
110 H x 37 W x 93 mm D (4.3 x 1.46 x 3.7")
Operating Temperature: 0 to 60°C (32 to 140°F)
Storage Temperature: -20 to 70°C (-4 to 158°F)

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Part Number/ Desc.

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Description

Below are examples of popular models. See the Part Number Builder to order any available model.

DRF-RTD-115VAC--50/150C-4/20

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Availability:

RTD signal conditioner with -50 to 150C range, 4 to 20mA output and 115Vac power

DRF-RTD-115VAC-0/200C-4/20

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Availability:

RTD signal conditioner with 0 to 200C range, 4 to 20mA output and 115Vac power

DRF-RTD-115VAC--25/75C-0/10

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Availability:

RTD signal conditioner with -25 to 75C range, 0 to 10Vdc output and 115Vac power

† All amounts shown in AUD

Part Number Builder

Build Your Part Number Below

	(1)		(2)		(3)
DRF-RTD-		-		-

Option Descriptions:

(1) Power select from:
115VAC for 115 Vac power
230VAC for 230 Vac power
24VDC for 24 Vdc power

(2) Range Code select from:
-25/75C for -25 to 75 degree C
-50/150C for -50 to 150 degree C
0/100C for 0 to 100 degree C
0/200C for 0 to 200 degree C
0/300C for 0 to 300 degree C
0/450C for 0 to 450 degree C
0/600C for 0 to 600 degree C

(3) Output select from:
4/20 for 4 to 20 mA
0/10 for 0 to 10Vdc

Note: All combinations may not be valid, check spec sheet for valid part numbers.