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Basler Electric
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BE3-49TH
User Manual
2 pgs124.03 Kb0

Basler Electric BE3-49TH User Manual

www.basler.com
info@basler.com
INTRODUCTION
SPECIFICATIONS
Operating Power
All units require externa l oper a ting pow er.
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,
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)
Publication
9320600990
1200 VA
Revision
E
+1 618.654.2341 (USA)
Instructions
Model
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
Case: Complies with IEC 529, DIN
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
BE3-49TH and BE3-49TL
7.5 mm)
40050, BS 5490
OPERATION
BE3 thermocouple temperature relays have two user­adjustable 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,
Date
03/14
Copyright
2014
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 1 shows the terminal connections for the BE3-49TH and BE3­49TL relays.
CALIBRATION
The calibration marks on the faceplate have a maximum error of 10% and are provided only as guides. Proper calibration requires using a thermocouple table and a millivoltmeter connected in parallel with a stable low-voltage source. Use the following procedure to calibrate your relay.
Trip
1. Adjust the SET control fully clockwise (BE3-49TL) or
fully counterclockwise (BE3-49TH). Adjust the DELAY control fully counterclockwise. Apply nominal external operating power to the relay.
2. Apply a value of millivolts that corresponds to the
desired temperature trip level.
3. Slowly adjust the SET control until the relay trips.
Overtemperature Delay
1. Set the DELAY control at the desired time setting. Apply
nominal external operating power to the relay.
2. Apply a value of voltage that is just above the trip
setpoint. Measure the time from when the voltage is applied until the relay trips.
FIGURES
3. Compare the measured time delay to the desired time
delay and adjust the DELAY control accordingly.
4. Repeat Steps 2 and 3 as required.
Undertemperature Delay
1. Set the DELAY control at the desired time setting. Apply
nominal external operating power to the relay.
2. Apply a value of voltage that is above the trip setpoint.
Remove the applied voltage and measure the time from when the voltage is removed until the relay trips.
3. Compare the measured time delay to the desired time
delay and adjust the DELAY control accordingly.
4. Repeat Steps 2 and 3 as required.
MAINTENANCE
BE3 relays are solid-state devices that require no maintenance. In the event that your relay requires repair, contact Basler Electric, Highland, IL, USA for return authorization.
ORDERING INFORMATION
Figure 2 shows the BE3 th erm ocou ple tem perature relay style chart.
• BE3-49TH - Overtemperature
• BE3-49TL - Undertemperature
Publication
9320600990
Figure 1. BE3-49TL and BE3-49TH Thermocouple Temperature Relay Connections
Figure 2. BE3-49TH and BE3-49TL Style Number Identification Chart
Revision
E
Instructions
Date
03/14
Page
2 of 2
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