Sensorex CT-1000 Operating Instruction

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Specifications/Operating Instruction

General Description

The model CT-1000 (encapsulated miniature transmitter) is a 2-wire, 4-20mA blind conductivity
transmitter featuring encapsulated construction, high performance and compact size.
Connect a conductivity cell of k=0.1 or 1.0 to it to then transform the output to a 4-20mA current
proportional to the conductivity level. This output may be transmitter over 2 wires to a control
location. The same 2 wires provide power to the transmitter. Any DC power supply from
12 to 36V DC may be used. There are two adjustments on the transmitter to standardize the
conductivity output marked as "SPAN" and "ZERO". The output can be monitored with a loop-
powered meter, a loop resistor or a multimeter during the standardization process.
Input: .............................................. 0-100,000 uS (see range
Output: .............................................4-20mA
Power Supply: .....................................12-36V DC
Load Resistor: .....................................0-750
Linearity: .......................................... + 0.02uS
Operating Temperature Range: ..................-25 to 70
Reverse Polarity Protection: .....................Internal diode
Dimensions: .......................................1.5" x 2.0" x 1.0"
Maximum sensor to transmitter distance ..... DO NOT EXCEED 25ft.
Model CT-1000

SPECIFICATIONS

label on transmitter)
Ω
at 24V DC
°
C
1

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Summary of Contents for Sensorex CT-1000

  • Page 1 Model CT-1000 General Description The model CT-1000 (encapsulated miniature transmitter) is a 2-wire, 4-20mA blind conductivity transmitter featuring encapsulated construction, high performance and compact size. Connect a conductivity cell of k=0.1 or 1.0 to it to then transform the output to a 4-20mA current proportional to the conductivity level.
  • Page 2 Installation 1. Two 6-32 mounting holes 9” centers are provided. The transmitter can be mounted in a head, weather-proof box, or DIN rail. 2. The output wires are isolated from ground; connections are made at the terminal strip observing polarity to the terminals marked + , -out. These wires are to be connected to a DC power supply through a load resistor.

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