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BTLS2000 Electronic Temperature and Level Switches


BTLS2000 combines a Class A Pt100 temperature sensor and reed-switch level sensing in one top-mounted assembly. A four-digit red display and three-button menu provide local temperature indication and adjustment. Temperature switching points are programmable; level switching positions are fixed by the ordered dimensions.

Choose dual temperature switching, or dual temperature switching with a 4–20 mA or 0–10 V analogue output. The model table provides six clearly defined online L1 layouts. Other dimensions are available by inquiry through Mod-Tronic.


Select & Configure Model
Base Model #Sensing / LayoutTemperature Range / SetpointOutputsProbe / ConnectionAvailabilityAdd to Cart /
Configure Part #
 
BTLS2L1 100 mm; L0 130 mm0 to 100°C / -30 to 140°C; °F codes available2 temperature points; optional analogue; level contactsM20x1.5; L2 37–55 mmInquireConfigurator
BTLS2L1 180 mm; L0 210 mm0 to 100°C / -30 to 140°C; °F codes available2 temperature points; optional analogue; level contactsM20x1.5; L2 37–135 mmInquireConfigurator
BTLS2L1 200 mm; L0 230 mm0 to 100°C / -30 to 140°C; °F codes available2 temperature points; optional analogue; level contactsM20x1.5; L2 37–155 mmInquireConfigurator
BTLS2L1 300 mm; L0 330 mm0 to 100°C / -30 to 140°C; °F codes available2 temperature points; optional analogue; level contactsM20x1.5; L2 37–255 mmInquireConfigurator
BTLS2L1 400 mm; L0 430 mm0 to 100°C / -30 to 140°C; °F codes available2 temperature points; optional analogue; level contactsM20x1.5; L2 37–355 mmInquireConfigurator
BTLS2L1 470 mm; L0 500 mm0 to 100°C / -30 to 140°C; °F codes available2 temperature points; optional analogue; level contactsM20x1.5; L2 37–425 mmInquireConfigurator
Temperature Range:

0 to 100°C; -30 to 140°C; 32 to 210°F; -22 to 280°F, depending on order code.

Storage Temperature:

-30 to 80°C.

Repeatability:

Temperature ±0.1% full scale.

Power Consumption:

Approximately 50 mA without load.

Output Ratings:

Temperature PNP: maximum 500 mA. Level contacts: maximum 24 VDC, 0.5 A.

Pressure Limit:

Maximum 3 bar.

Process Connection:

M20x1.5 male; FKM, EPDM or NBR sealing.

Enclosure Rating:

IP65/IP67 with suitable mating connector.

Length:

L1 maximum 470 mm; L0=L1+30 mm. L2 minimum 37 mm and maximum L1−45 mm.

Ambient Temperature :

Electronics -10 to 60°C.

Accuracy:

Temperature linearity less than ±0.5% full scale at 25°C. Level switching tolerance ±3 mm.

Power Supply:

15 to 28 VDC, reverse-polarity protected; SELV/PELV.

Output(s):

Two PNP temperature switchpoints; optional 4–20 mA or 0–10 V analogue output; one or two level contacts.

Display:

4-digit red 14-segment LED, 9 mm; display and connection rotate 320°.

Material:

Wetted parts: NBR foam and brass. Housing: stainless steel and PBT.

Electrical Connections:

M12: 5-pin for output 1; 8-pin for outputs 4/5. Mating connector separate.

Response Time:

Thermal time constant T09 approximately 40 s.

Range:

BN18 float; minimum medium density 0.66 g/cm³. Immersion 16±2 mm in water, 18±2 mm in oil.


Level dimensions and ordering

L1 is the first level switchpoint dimension; overall probe length L0 = L1 + 30 mm. The second level dimension L2 must be at least 37 mm and no greater than L1 minus 45 mm. The operating instructions limit L1 to 470 mm.

Each online configurator fixes L1 to the layout shown in its row and accepts a three-digit L2 value within the correct bounds. These are online dimension layouts, not a claim of stocked or manufacturer-standard assemblies. Other valid L1 dimensions require an inquiry.

Temperature-only output code 1 uses the five-pin connection and one level contact. Analogue output codes 4 and 5 use the eight-pin connection and two level contacts. The M12 mating connector is ordered separately. Fixed level positions cannot be changed in the temperature menu.

Select seals and wetted materials for the medium. The BN18 float requires a minimum fluid density of 0.66 g/cm³. Availability is by inquiry.


Mod Tronic Instruments Limited
1 Delta Park Blvd #12
Brampton, ON L6T 5G1
Phone: 905-457-6322 or 1-800-794-5883
Fax: 905-457-4716 or 1-800-830-7122
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