Kobold KAL-L Specifications

Thermal Air Flow Switch

measuring

•

monitoring

•

analyzing

KAL-L

• Negligible Pressure Loss

• No Moving Parts

• Adjustable Response Time

• Compensated for Temperature

• Easy to Install

KOBOLD companies worldwide:

ARGENTINA, AUSTRALIA, AUSTRIA, BELGIUM, BULGARIA, CANADA, CHILE, CHINA, COLOMBIA,
CZECH REPUBLIC, EGYPT, FRANCE, GERMANY, HUNGARY, INDIA, INDONESIA, ITALY, MALAYSIA,
MEXICO, NETHERLANDS, PERU, POLAND, REPUBLIC OF KOREA, ROMANIA, SINGAPORE, SPAIN,
SWITZERLAND, TAIWAN, THAILAND, TUNISIA, TURKEY, UNITED KINGDOM, USA, VIETNAM

01/05- 2014

KOBOLD Instruments, Inc.
1801 Parkway View Drive
Pittsburgh, PA 15205

Main Ofce:

1.800.998.1020

1.412.788.4890
[e-mail]
www.koboldusa.com

Thermal Air Flow Switch Model KAL-L

Description

The KOBOLD KAL-L flow switch allows rapid detection of flow
rate changes in non-hazardous gases. Fast reaction times are
guaranteed by the electronic design. Through use of two RTD's,
one to sense flow and the other to detect ambient temperature, the
switch can compensate for thermal changes in its surroundings.
This “smart” behavior minimizes erroneous switching due to
changes caused by things such as the weather. Almost any
conceivable pipe size can be accommodated by the insertion
style design. Knowledge of the flow velocity in your system is all
that is needed to make the KAL-L work. Typical application areas
include: air conditioning systems, ventilation systems, and other
non-hazardous gas flow monitoring systems.

Specifications

Power Supply: 24 VAC/VDC - 15%, +10%
Max. Power: 4 VA
Ambient Temperature: 14...140 °F
Media Temperature: -10...250 °F
Max. Pressure: 120 PSIG
Max. Warm-up Time: 30 seconds
Switching Range: 3.3...66 ft/sec at 20 °C, 14.5 PSIG

(Restricted Span for other Conditions)

Switching Accuracy: ± 10% of Reading
Repeatability: ± 1% of Reading
Temperature Gradient: 30 °K (°C)/min, @ 8m/s, 90 °C
Response Time: 1...60 s, Adjustable
Flow Rate Indication: 8-Digit LED Bargraph
Switch Point Adjustment: via Potentiometer
Output Indicator: 2-Color LED
Switch Output: Relay, SPDT
Switch Capacity: Max. 250 VAC / 1000 VA / 4A

(Option M12: Max. 24 VAC/VDC, 3A)

Protection: IP 65
Housing Material: Polyamide
Sensor Material: Ni-plated Brass

Order Details (Example: KAL-8115 M12)

Electrical Connection

Dimensions (mm)

Fitting

1/2" NPT KAL-8115

2-Bolt Flange KAL-8115FL

2

Order

Number

Options

Suffix "C"

½" Conduit Hub

Suffix "M12"

Quick Disconnect w/6' Cable

www.koboldusa.com

No responsibility taken for errors;

subject to change without prior notice.