Honeywell CTS-A Series User manual

INSTALLATION INSTRUCTIONS
31-00142-01
20
Solid Core and Split Core 4-20 mA
Output Current Sensors
CTS-A AND CTP-A SERIES
APPLICATION
The 4-20 mA Output Analog Current Sensors are designed
for use in any AC current monitoring application in which
you are looking to monitor a particular piece of equipment.
SPECIFICATIONS
Monitored Current Type: AC Current
Maximum AC Voltage: 600 VAC
Isolation Voltage: 2200 VAC
Supply Voltage:
+8.5 to 30 VDC (Reverse Polarity Protected)
250 Ohm Load (1-5 VDC): +13.5 to 30 VDC
500 Ohm Load (2-10 VDC): +18.5 to 30 VDC
Operating Temperature Range: 5 to 104ºF (-15 to 40ºC)
Operating Humidity Range: 0 to 95%, non-condensing
Wire Recommendations: 2 Conductor (Shielded Cable)
Wire Size:
18 to 24 AWG (0.823 mm2to 0.205 mm) Copper Wires
only
Terminal Block Torque Rating: 4.43 to 5.31 in-lbs. (0.5 to
0.6 Nm)
Minimum Mounting Distance:
1” (2.6 cm) between current sensor & other magnetic
devices (Relays, Contactors, Transformers)
Agency Approvals:
CE (-RMS Versions): CE to IEC 61326-1: 2012 Class A,
UL/CUL US Listed (UL 508) Ind. Control Equipment
(File # E309723), RoHS2, WEEE
STANDARD ORDERING
Table 1. Standard Ordering.
NOTE: The 4-20 mA Output Current Sensors are not intended to be used in life/safety applications or in hazard-
ous/classified locations.
Model # Selectable Ranges Measurement AC Waveform Solid-Core Split-Core
Output
Signal
CTS-A-250 0 to 100/200/250A Average Pure Sinusoidal • 4 to 20 mA
CTP-A-200 0 to 100/150/200A Average Pure Sinusoidal • 4 to 20 mA
CTP-A-50-RMS 0 to 10/20/50A True RMS Distorted & Pure
Sinusoidal •4 to 20 mA

SOLID CORE AND SPLIT CORE 4-20 MA OUTPUT CURRENT SENSORS
31-00142—01 2
PLEASE READ INSTRUCTIONS CAREFULLY BEFORE
INSTALLATION!
WARNING
• This product is not intended to be used for Life
or Safety applications.
• This product is not intended for use in any
hazardous or classified locations.
• The CTS-A and CTP-A Series Current Sensors
must be used on Insulated Conductors Only!
WARNING
HIGH VOLTAGE
Disconnect and lock out all power sources before
installation as severe injury or death may result
from electrical shock due to contact with high
voltage wires.
INSTALLATION
Make sure that all installations are in compliance with all
national and local electrical codes. Only qualified
individuals that are familiar with codes, standards, and
proper safety procedures for high-voltage installations
should attempt installation. The current sensor is a 2-wire,
4 to 20 mA Loop Powered device that requires a regulated
+13.5 to 30VDC external power source.
The current sensor may be mounted in any position using
the two #8 x ¾” Tek screws and the mounting holes in the
base, or snapped directly on to the 35mm DIN rail (See Fig.
1. Leave a minimum distance of 1” (3 cm) between the
current sensor and any other magnetic devices such as
contactors and transformers.
Fig. 1. Sensor Placed On Rail.
Latch Operation for CTP-A Series
Press down on the side tab and swing the top of the unit
up to open the split core current sensor as shown in Fig. 2.
Press down firmly on the cover to close the current sensor.
An audible “click” will be heard as the tab slides over the
tongue on the base.
CAUTION
Mating surfaces of the magnetic core are
exposed when the sensor is open. Electrical
contact grease, present on the cores to prevent
corrosion, can capture grit and dirt if care is not
exercised. Operation can be impaired if anything
prevents good contact between pole pieces.
Visually check the mating parts of the core
before closing the current sensor.
Fig. 2. Opening Split Core Models.
CURRENT SENSOR SETUP
The amperage range selected represents the maximum
current that can be applied to the conductor being
monitored. DO NOT EXCEED! All current sensors with
selectable ranges will have the range selection jumper
factory set on the high range. For models with field
selectable amperage ranges, select the correct amperage
range using the range selection jumper. Note that all RMS
models have True RMS outputs and should be used with
Variable Frequency Drives.
WIRING
We recommend the use of a two conductor 16 to 22 AWG
shielded cable, COPPER WIRE ONLY, for all 4 to 20mA
current sensor installations. A maximum wire length of
less than 30 meters (98.4 feet) should be used between
the current sensors and the Building Management
System or controller.
NOTE: When using a shielded cable, be sure to connect
only (1) end of the shield to ground at the control-
ler. Connecting both ends of the shield to ground
may cause a ground loop.
When removing the shield from the sensor end, make sure
to properly trim the shield to prevent any chance of
shorting. The current sensor terminals are polarity
sensitive and represent a linear and proportional 4 to
20mA output signal. The current sensors are available in
either an Average or True RMS output version. Tighten the
screws at the terminal block connections to the
recommended torque of 0.5 to 0.6 Nm (4.43 to 5.31 in-
lbs.). The aperture (hole) size of the current sensor is 0.75”
(1.90 cm).
M37378
M37379

SOLID CORE AND SPLIT CORE 4-20 MA OUTPUT CURRENT SENSORS
331-00142—01
Application Example
Fig. 3. Analog circuit.
TROUBLESHOOTING
Table 2. Troubleshooting.
CURRENT CONVERSION FORMULAS
WEEE DIRECTIVE
At the end of their useful life the packaging and product should be disposed of via a suitable recycling center. Do not
dispose of with household waste. Do not burn.
M37403
SHIELDED CABLE
AI
COMMON
GND (SHIELDED)
BUILDING AUTOMATION
SYSTEM
4 TO 20mA
SIGNAL INPUT
+
DC
POWER
SUPPLY
13.5 TO 30 VDC
–
Problem Solution
No reading • Confirm that you have +13.5 to 30VDC in series with the current sensor output terminals and the analog input of the
control panel.
• Check the polarity of the circuit.
• Verify that the terminals are screwed down, wires are firmly in place.
• Disconnect the input to the control panel and then insert a current meter (mA range) in series with the current sensor
output to verify that the circuit is working properly.
Erratic readings • Verify that the wires are terminated properly.
• Check that the +13.5 to 30VDC input is clean. In areas of high RF interference, shielded cable may be necessary to
stabilize signal.
Inaccurate readings • If you suspect that the current sensor is not reading within the accuracy specifications, please contact the factory for
assistance.
Current Sensor is operating at
a low-level current or failing to
operate within the accuracy
specifications.
• Visually check the mating parts of the core to ensure there is no debris between the split contacts. See Fig. 2.
• Remove all debris or dust manually and close the current sensor.
• Continue to retest the sensor in your application.
TO CONVERT THE CURRENT SENSOR OUTPUT SIGNAL TO A CURRENT READING:
4-20mA output to Current reading
(4mA = 0 Amps and 20mA = 250 Amps for A/CTA2-250)
Example: 12mA current sensor output signal
Total Span = 250 Amps
Multiplier = 20mA-4mA/Total Span = 0.064
(12mA-4mA)/0.064= 125 AMPS

SOLID CORE AND SPLIT CORE 4-20 MA OUTPUT CURRENT SENSORS
Home and Building Technologies
In the U.S.:
Honeywell
715 Peachtree Street NE
Atlanta, GA 30308
customer.honeywell.com
® U.S. Registered Trademark
© 2018 Honeywell International Inc.
31-00142—01 M.S. 04-18
Printed in United States
By using this Honeywell literature, you agree that Honeywell will have no liability for any damages arising out of your use or
modification to, the literature. You will defend and indemnify Honeywell, its affiliates and subsidiaries, from and against any
liability, cost, or damages, including attorneys’ fees, arising out of, or resulting from, any modification to the literature by you.
CHINA ROHS COMPLIANCE INFORMATION
ENVIRONMENT-FRIENDLY USE PERIOD (EFUP) TABLE
󴉆󸀮󴏵󱡽󳮹 SJ/T 11364 󵵙󸊿󲷢󶴹󱳷
O: 󸀮󶆺󸛋󴈄󲸓󵙀󸢹󲔩󸛋󸽩󱝾󳧟󴈄󲕓󸢹󴉿󳾒󱙆󵵙󲀯󹄡󲕓󲔩 GB/T 26572 󸊿󲷢󵵙󹢔󹄡󸉔󴭁󱝥󱘕
X: 󸀮󶆺󸛋󴈄󲸓󵙀󸢹󷋼󲻒󲔩󸛋󸽩󱝾󵵙󴍅󱘈󲕓󸢹󴉿󳾒󱙆󵵙󲀯󹄡󸤥󱲡 GB/T 26572 󸊿󲷢󵵙󹢔󹄡󸉔󴭁
This table is prepared in accordance with the provisions of SJ/T 11364.
O: Indicates that said hazardous substance contained in all of the homogeneous materials for this part is below the limit
requirement of GB/T 26572.
X: Indicates that said hazardous substance contained in all of the homogeneous materials for this part is above the limit
requirement of GB/T 26572.
󴉃󱳊󱮧󸀮󱯜󵵙󱯇󱝎󸽩󱝾󽘜󵵜󱘗󲀯󱞄󱠇󸤥󱲡󹢔󹄡󸉔󴭁󵵙󹢔󱳷󱡋󵫞󵙀󸢹
All other components, not listed in the table, do not contain restricted substances above the threshold level.
REGULATORY INFORMATION
FCC REGULATIONS: § 15.19 (A)(3)
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received,
including interference that may cause undesired
operation.
IC REGULATIONS: RSS-GEN
This device complies with Industry Canada’s license-
exempt RSSs.
Operation is subject to the following two conditions:
1. This device may not cause interference; and
2. This device must accept any interference, including
interference that may cause undesired operation of
the device.
Le présent appareil est conforme aux CNR d’Industrie
Canada applicables aux appareils radio exempts de
licence. L’exploitation est autorisée aux deux conditions
suivantes :
1. l’appareil ne doit pas produire de brouillage;
2. l’utilisateur de l’appareil doit accepter tout brouil-
lage radioélectrique subi, même si le brouillage est
susceptible d’en compromettre le fonctionnement.
FCC WARNING (PART 15.21) (USA ONLY)
Changes or modifications not expressly approved by the
party responsible for compliance could void the user’s
authority to operate the equipment.
󸽩󱝾󱿽󶌇
Component
Name
󴈄󲸓󵙀󸢹 - Hazardous Substances
󹚮(Pb)
Lead (Pb)
󴭰(Hg)
Mercury (Hg)
󹜲(Cd)
Cadmium (Cd)
󱮺󱞀󹛕 (Cr6+)
Chromium VI
Compounds
(Cr6+)
󲡕󴼤󶾌󷔦 (PBB)
Polybrominate
d Biphenyls
(PBB)
󲡕󴼤󱛔󷔦󹂮
(PBDE)
Polybrominated
Diphenyl Ethers
(PBDE)
Assorted
capacitors
OOOO O O
Assorted resistors O O O O O O
Core OOOO O O
Screw OOOO O O