Basler Electric BE3-49TH - Manual

www.basler.com
+1 618.654.2341 (USA)
[email protected]
Model BE3-49TH and BE3-49TL
INTRODUCTION
BE3 thermocouple temperature relays monitor remote
temperatures using thermocouple transducers. The relay
operates when the monitored temperature exceeds the
preset limit. The BE3-49TH provides overtemperature
protection and the BE3-49TL provides undertemperature
protection. Type J or K thermocouple inputs are available.
These inputs cover a wide range of temperatures.
SPECIFICATIONS
Operating Power
All units require external operating power.
AC Operating Power
Nominal Voltage: 120 Vac, 240 Vac, or 480 Vac
Frequency: 45 to 65 Hz
Burden: 2 VA maximum
DC Operating Power
Nominal Voltage: 24 Vdc
Burden: <3 W
Thermocouple Input
The thermocouple input accommodates type J and type K
thermocouples and is thermocouple-break protected.
Type J
Minimum Range: 0 to 185 °C (10 mV span)
Maximum Range: 0 to 870
°C (50 mV span)
Type K
Minimum Range: 0 to 245
°C (10 mV span)
Maximum Range: 0 to 1,230 °C (50 mV span)
Cold Junction Compensation
Automatic over the range of 0 to 50 °C
Overload
10 x continuous
Setpoint
Overtemperature Range: Adjustable 40 to 120% (
±3%)
Undertemperature Range: Adjustable 0 to 80% ( ±3%)
Repeatability: Greater than 0.5% of full span
Time Delay: Adjustable from 0 to 10 s
Differential: Fixed at 2%
Output
Relay Type: D.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 70°C (158°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: 0.88 lb (0.4 kg)
Size: 2.17” wide (55 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
BE3 thermocouple temperature relays have two user-
adjustable controls: SET and DELAY. The SET control
adjusts the relay trip point. The BE3-49TL trips when the
monitored temperature decreases below the SET threshold.
The undertemperature SET level is adjustable from 0 to
80% (
±3%) of the rated thermocouple temperature. The
BE3-49TH trips when the monitored temperature increases
above the SET threshold. The overtemperature SET level is
adjustable from 40 to 120% (
±3%) of the rated thermocouple
temperature. The DELAY control adjusts the time from when
a fault is detected until the output contacts change state.
The DELAY control is adjustable from 0 to 10 seconds. All
BE3 thermocouple temperature relays have a green
POWER LED to indicate the condition of the power supply.
A red RELAY LED indicates the state of the output relay.
Setting Example
A BE3-49TH rated for a J type thermocouple with a
maximum temperature of 185
°C has the following settings:
•
SET - 80%
•
DELAY - 5 s
An overtemperature condition is detected when the sensed
temperature increases to 148°C. The output trips 5 seconds
after the overtemperature condition is detected. If the
sensed temperature falls below 144.3°C (2% of nominal
fixed differential) before timeout, the relay resets.
INSTALLATION
BE3 thermocouple temperature relays are designed for
mounting on standard DIN rails that comply to 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,
Publication
9320600990
Revision
E
Instructions
Date
03/14
Copyright
2014