Red Lion CTL User Manual

Bulletin No. CTL-C

C

EQ.

Drawing No. LP0652

Released 03/14

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www.redlion.net

MODEL CTL - AVERAGE RESPONDING AC CURRENT TRANSDUCERS

 AVERAGE RESPONDING OUTPUT: 0-10 VDC or 4-20 mA

 JUMPER SELECTABLE RANGES

 OUTPUT IS MAGNETICALLY ISOLATED FROM THE INPUT

 SPLIT-CORE AND FIXED-CORE CASES

U

R

US LISTED

L

IND. CONT.

5T44

GENERAL DESCRIPTION

CTL Series transducers combine a current transformer and a signal conditioner
into a single package. This provides higher accuracy, lower wiring costs, easier
installation and saves valuable panel space.

The CTL Series transducers have jumper selected current input ranges and
industry standard 0-10 VDC or 4-20 mA outputs. The CTL Series is designed for
application on “linear” or sinusoidal AC loads. Available in a split-core or solid­core case. Select the CTL Series for constant speed loads or On/Off loads.

SAFETY SUMMARY

All safety related regulations, local codes and instructions that appear in the
literature or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.

Do not use this unit to directly command motors, valves, or other actuators
not equipped with safeguards. To do so, can be potentially harmful to persons or
equipment in the event of a fault to the unit.

CAUTION: Read complete

instructions prior to installation

and operation of the unit.

DIMENSIONS In inches (mm)

3.04

(77.2)

1.19

(30.2)

3.53

(89.7)

2.40
(61)

0.85

(21.6)

2.25

(57.2)

CAUTION: Risk of electric shock.

SPLIT-CORE

Ø 0.19

(4.8)

0.85

(21.6)

SPECIFICATIONS

0-10 VDC 4-20 mA

1. OUTPUT SIGNAL: 0-10 VDC 4-20 mA

2. OUTPUT LIMIT: 15 VDC 40 mA

3. FREQUENCY RANGE: 50-60 Hz 20-100 Hz

4. RESPONSE TIME: 100 msec 300 msec

5. ACCURACY:

6. POWER SUPPLY:

7. INPUT RANGES: (Jumper Selectable)

PART

NUMBER

CTL005

CTL050

CTL200

RANGE

_ _

_ _

_ _

2 A 125 A80 A 250 A

5 A 125 A100 A 250 A
10 A
20 A
50 A

100 A 300 A200 A 600 A
150 A 450 A300 A 800 A
200 A 500 A400 A 1000 A

8. ISOLATION VOLTAGE: 3 kV

9. CASE: UL 94V-0 Flammability rated thermoplastic

10. ENVIRONMENTAL: -4 to 122 °F (-20 to 50 °C)
0-95% RH, non-condensing

11. TORQUE RATINGS: 7 in-lbs on Fixed-core models; 9 in-lbs on Split-core
models.

12. LISTING: UL 508 Industrial Control Equipment, CSA C22.2 No. 14-M95,
and CE Certified.

DIMENSIONS In inches (mm)

Ø 0.19

(4.8)

2.18

(55.4)

1.0% FS 0.5% FS

Self-powered

80 A
110 A
175 A

24 VDC Nominal, 40 VDC max.

MAXIMUM

6 secContinuous 1 sec

125 A
150 A
215 A

FIXED-CORE

3.03

(77.0)

0.93

(23.6)

2.40

(61.0)

3.50

(88.9)

250 A
300 A
400 A

Ø 0.74

(19)

INSTALLATION

Important!

Keep Contact

Area CLEAN!

To Open

Press Tab

Toward Hinge.

Run wire to be monitored through opening in the sensor. The CTL Series
transducers work in the same environment as motors, contactors, heaters, pull­boxes, and other electrical enclosures. They can be mounted in any position or
hung directly on wires with a wire tie. Just leave at least one inch (25.4 mm)
distance between sensor and other magnetic devices.

Split-Core Versions

Press the tab in the direction as shown to open the sensor. After placing the
wire in the opening, press the hinged portion firmly downward until a definite
click is heard and the tab pops out fully.

KEEP SPLIT-CORE SENSORS CLEAN.

Silicone grease is factory applied on the mating surfaces to prevent rust and
improve performance. Be careful not to allow grit or dirt onto the grease in the
contact area. Operation can be impaired if the mating surfaces do not have good
contact. Check visually before closing.

OUTPUT WIRING

Connect control or monitoring wires to the sensor. Use up to 14 AWG copper
wire and tighten terminals to 7 inch-pounds torque for solid-core models and 9
inch-pounds torque for split-core models. Be sure the output load or loop power
requirements are met (see diagram).

POWER SUPPLY

VL = 12VDC + (RL× 0.020A)

25

20

15

10

5

Loop Power (VDC)

0

CONNECTIONS

4–20mA Option

Range Jumper

10 VDC Option

Range Jumper

= Minimum Loop Supply

where V

L

R

= Total Loop Resistance (Ohms)

L

250

500

Total Loop Impedance (Ohms)

24 VDC Power

(+)(–)

2(+)1(–)

Output

2(+)1(–)

Output

Operating Range

1000750

Load

(Controller,

(+)

Meter, etc.)

(–)

Notes: Captive screw terminals.

12–22 AWG solid or stranded.
Observe polarity.

1M

Ω

Recommended

Ω

Acceptable (Add

100K

1.3% error for 100 K)

RANGE SELECT

CTL series transducers feature field selectable ranges. The ranges are factory

calibrated, eliminating time consuming and inaccurate field setting of zero or span.

1. Determine the normal operating amperage of your monitored circuit

2. Select the range that is equal to or slightly higher than the normal operating
amperage.

3. Place the range jumper in the appropriate position.

TROUBLE SHOOTING

0-10 VDC OUTPUT MODELS

1. Sensor Has No Output

A. Polarity is not properly matched. Check and correct wiring polarity.
B. Monitored load is not AC or is not on. Check that the monitored load is

AC and that it is actually on.

C. Split Core models: The core contact area may be dirty. Open the sensor and

clean the contact area.

2. Output Signal Too Low

A. The jumper may be set in a range that is too high for current being

monitored. Move jumper to the correct range.

B. Output load too low. Check output load, be sure that it is at least 100KΩ

and preferably 1 MΩ.

C. Monitored current is below minimum required. Loop the monitored wire

several times through the aperture until the “sensed” current rises above
minimum. Sensed Amps = (Actual Amps) x (Number of Loops). Count
loops on the inside of the aperture.

3. Output Signal Is Always At Maximum

A. The jumper may be set in a range that is too low for current being

monitored. Move jumper to the correct range.

4-20 mA OUTPUT MODELS

1. Sensor Has No Output

A. Power supply is not properly sized. Check power supply voltage and

current rating.
B. Polarity is not properly matched. Check and correct wiring polarity
C. Split Core models: The core contact area may be dirty. Open the sensor and

clean the contact area.

2. Output Signal Too Low

A. The jumper may be set in a range that is too high for current being

monitored. Move jumper to the correct range.
B. The load current is not sinusoidal.
C. Monitored current is below minimum required. Loop the monitored wire

several times through the aperture until the “sensed” current rises above

minimum. Sensed Amps = (Actual Amps) x (Number of Loops). Count

loops on the inside of the aperture.

3. Sensor Is Always At 4 mA

A. Monitored load is not AC or is not on. Check that the monitored load is

AC and that it is actually on.

4. Output Signal Is Always At 20 mA

A. The jumper may be set in a range that is too low for current being

monitored. Move jumper to the correct range.

ORDERING INFORMATION

TYPE MODEL NO. DESCRIPTION PART NUMBER

CTL12S 2-5 A / 4-20 mA CTL0052S

SPLIT CORE

FIXED CORE

4-20 mA

FIXED CORE

0-10 VDC

CTL52S 10-50 A / 4-20 mA CTL0502S

CTL22S 100-200 A / 4-20 mA CTL2002S

CTL52F 10-50 A / 4-20 mA CTL0502F

CTL22F 100-200 A / 4-20 mA CTL2002F

CTL51F 10-50 A / 10 VDC CTL0501F

CTL21F 100-200 A / 10 VDC CTL2001F

Red Lion Controls
Headquarters
20 Willow Springs Circle
York PA 17406
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Red Lion Controls

Europe

Softwareweg 9

NL - 3821 BN Amersfoort

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Red Lion Controls

India
201-B, 2nd Floor, Park Centra
Opp 32 Mile Stone, Sector-30

Gurgaon-122002 Haryana, India

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Red Lion Controls

China

Unit 302, XinAn Plaza

Building 13, No.99 Tianzhou Road

ShangHai, P.R. China 200223

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