Basler Electric BE3-49R-3 Inputs - Manual

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Model BE3-49R - 3 Inputs
INTRODUCTION
Three-input BE3 temperature relays use resistance
temperature detectors (RTDs) to monitor remote
temperatures. When any of three monitored temperatures
exceeds a preset limit, the corresponding relay output
operates. A dc metering output indicates the highest
temperature of the three RTDs. BE3 temperature relays are
available for use with 10
Ω copper or 100 Ω platinum RTDs.
SPECIFICATIONS
Operating Power
All units require external operating power.
Nominal Voltage: 120 Vac, ±25%, 45 to 65 Hz, 2 VA
240 Vac, ±25%, 45 to 65 Hz, 2 VA
24 Vdc, ±20%, galvanically
isolated, <3 W
RTD Inputs
The RTD inputs accommodate two- or three-wire RTDs.
Depending on the style number of the relay, the RTD inputs
accept either 10
Ω copper or 100 Ω platinum RTDs.
Style 5H5X1: 10
Ω copper RTDs
Style 5I5X1: 100
Ω platinum RTDs
The temperature measurement range of each input is 0 to
200
°C.
Metering Output
Range: 0 to 1 mAdc
Burden: 5 k Ω maximum
Setpoints
Range: 50 to 100% ( ±3%) of input
temperature range
Repeatability: Greater than 0.5% of full span
Differential: Fixed at 2%
Outputs
Relay Type: S.P.D.T.
AC Rating: 250 V, 5 A, non-resistive,
1200 VA
DC Rating: 125 V, 1 A, resistive, 120 W
Mechanical Life: 5 million operations
Temperature
Operating Temperature: 0°C (32°F) to 60°C (140°F)
Functional Temperature: –25°C (–13°F) to 70°C (158°F)
Storage Temperature: –40°C (–40°F) to 85°C (185°F)
Temperature Coefficient: 0.03% per °C (300 ppm/°C)
Humidity
Relative Humidity: 95% non-condensing
Physical
Mounting: DIN rail 1.38” by 0.29” (35 mm by
7.5 mm)
Case: Complies with IEC 529, DIN
40050, BS 5490
Case Material: Complies with UL 94VO
Weight: 1.32 lb (0.59 kg)
Size: 3.94” wide (100 mm)
Agency
cULus listed to UL 508 and CSA C22.2 No. 14
CE compliant
GOST-R certified per the relevant standards of Gosstandart
of Russia
OPERATION
Three temperatures are monitored through RTDs connected
at the nine-position front panel connector. RTD connections
are labeled A, B, and C. Three user-adjustable controls are
located on the front panel: SET 1, SET 2, and SET 3. Each
setpoint is adjustable from 50 to 100% (
±3%) of the RTD
temperature range. When a setpoint is exceeded, the
corresponding TRIP LED lights and the relay output
energizes. Each RTD has a corresponding LED to identify
which RTD has exceeded the temperature setpoint. For
example, if the temperature of RTDs B and C exceeds the
trip level, the B and C TRIP LEDs light and the relay output
energizes. A green LED labeled AUX indicates the power
supply status. Figure 1 illustrates the BE3-49R controls,
indicators, and terminals.
INSTALLATION
BE3 temperature relays are designed for mounting on
standard DIN rails that comply with DIN-EN 50022.
Mounting involves hooking the top edge of the cutout on the
base of the case over one edge of the DIN rail. The opposite
side of the cutout containing the release clip is then pushed
over the opposite side of the DIN rail. To remove or
reposition the relay, lever the release clip and move the
relay as required. BE3 relays should be installed in a dry,
vibration-free location where the ambient temperature does
not exceed the operating temperature range. Connections to
the relay should be made using wire that meets applicable
codes and is properly sized for the application. Figure 2
illustrates the terminal connections for the BE3-49R
temperature relay.
A burden resistor must be installed across all unused RTD
inputs that are not connected to an actual RTD. For units
with style number 5HXXX, it is suggested that a 10
Ω
resistor be connected across any unused RTD inputs. For
units with style number 5IXXX, it is suggested that a 100
Ω
resistor be connected across any unused RTD inputs. The
minimum power rating for the burden resistors is ¼ W.
Publication
9320500990
Revision
D
Instructions
Date
03/14
Copyright
2014