Intrinsically safe DC current sensors Model ISCTH, dc current transducers
Converting dc and ac current to an isolated 0-10V and 4-20mA

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ISCTH Type 8 ATEX and UL approved for Instrinsically safe environments

50mm (2") round hole Outer: 127mm (5") x 105mm (4.125") x 31.75mm (1.25")
Current ranges: ISCTH / 100 / 200 / 300 / 400 / 500 / 600 / 800 / 1000 / 1500 / 2000 / 2500A



Model ISCTH type 8 intrinsically safe, models from 100A to 2500A
ISCTH datasheet




Molded integral cable for intrinsically safe connection

The ISCTH current transducer provides a Hall-Effect sensor with an integrated signal conditioner.  All units are packaged in a split-core configuration for ease of installation.  Application flexibility is provided by a wide variety of input current ranges and output signal types.

Units meet the requirements of ATEX Directive 94/9/EC and UL/CUL Intrinsically Safe regulations (see standards listing).  These standards are specifically related to the requirements for hazardous location installations in North America and the European Union (EU) but are widely accepted throughout the world. When used with appropriate safety barriers these units are recommended for installation in hazardous locations such as offshore platforms and petrochemical plants.

The ISCTH intrinsically safe sensors convert dc and ac current to an isolated voltage or mA output with the ability to track ac waveshapes. The ISCTH output is a faithful reproduction of the measured current, whether ac or dc. Popular process control voltage and current loop outputs are available. Split core options mean that connection is non-intrusive and straightforward. The available input range of the ISCTH sensors is any value from 100A to 2500Adc. The sensor power input is designed to operate using the standard process control voltage of 24Vdc.  Active Hall Effect sensor technology allows measurement from DC-1kHz along with fast step response.  The ISCTH can be used to provide an instantaneous output for ac currents. Typical applications are found in hazardous areas like oil drilling, oil rigs, mining, process control systems and high energy battery banks.  For all ISCTH models, a DNV 2006-OSL-ATEX-0411X and NIST/NPL (UKAS) traceable certificate of conformance is supplied.

For level sensing, protection, alarm and threshold monitoring please see Trip relay

Links:

ISCTH Sensors datasheet pdf

ISCTH datasheet pdf
 

ISCTH DC current transducer general specifications

Ranges 100 / 200 / 300 / 400 / 500 / 600 / 800 / 1000 / 1500 / 2000 / 2500A 
Outputs 0-10V or 4-20mA outputs. All ISCTH outputs can be bipolar / instantaneous. Non-standard outputs are available.
Core type Through hole or split core clamp type, based on dc Hall Effect sensing
Insulation voltage rating 5kVpk 1 min 50/60Hz
Power input 24Vdc all fuse, polarity and surge protected
Accuracy ±0.5% for a non split core, ±1.0% for a split core.  Conditions +23°C ±5°C, traceable to UKAS NPL/NIST USA
Working temperature range Typically -20°C - 65°C (can be extended, check for exact model).  Functional temperature range 20°C - 70°C (check for each model). ISCTH types 1 & 2 are –40°C - 85°C (sensor head only)
Protection Input fuse, output fuse, power input polarity diode, spike suppression
Frequency response DC-1000Hz max
Adjustment Internal dc offset and gain controls, factory set
Mounting All signal conditioners and sensors have fixing points
Approvals Ex ia ICC T4, DNV 2006-OSL-ATEX-0411X, CE Marked 0575, UL/CUL CLI, Div 1, GR A, B, C & D.  Self extinguishing materials to UL94V0
Warranty 2 year warranty

 

Current transducer order codes

The order code is based on:-

ISCTH / amps input / output / SC or TH /  power input + core type

SC = split core, TH = through hole (non-split core)

230Vac/dc & 115Vac/dc adapters are available (in this case the ISCTH will be supplied with 9-36Vdc input and ac adapter)

 

Options - Environmental

All models self extinguishing materials to UL94V0 and CSA
Extended temperature range -40°C - 85°C (not available for all sensor types)

Options – noise rejection and offset

Non standard input current
Non standard output voltage or current
User can specify upper or lower –3db point


Order code examples

ISCTH / 50A / 4-20 / TH / 24Vdc  type 8 50Adc input, 4-20mA output, through hole, 24V aux power input, core type 8 (50mm hole dia)
ISCTH / 400A / 10 / TH / 24Vdc  type 8 400Adc input, 0-10V output, through hole, 24Vdc aux power input core type 8 (50mm hole dia)
ISCTH / 2000A / 10 / SC / 24Vdc  type 8 2000Adc input, 0-10V output, split core, 24Vdc aux power input, type 8 core (50mm hole dia)

Links:

Download ISCTH Sensors datasheet pdf

ISCTH datasheet


All products have CE, IEC, EN, ASME or BS approvals.
 

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