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4 to 20mA Interface

4 to 20mA Interface

The (CGI420) and (CGI420R) are 4 to 20mA intelligent addressable modules designed to interface with gas detection modules and are compatible with Cooper intelligent addressable control panels.

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The (CGI420) and (CGI420R) are 4 to 20mA intelligent addressable modules designed to interface with gas detection modules and are compatible with Cooper intelligent addressable control panels.

These interfaces have a unique address on the loop and built in isolator for loop short circuit protection.

Each of the DIL switches JP1, JP2 and JP3 can be programmable to set the threshold level for prealarm1, pre-alarm 2 and alarm respectively. This can be expressed as a percentage of L.E.L (lower explosion limit) or PPM (parts per million).

Features

  • Soft addressed
  • Integral short circuit isolator
  • Single address
  • Ideal interface for gas detection modules
  • 3 volt free outputs for each of the 3 alarm levels (optional)
  • Requires external power supply

Benefits

  • The supply to the gas detector is taken directly from the interface
  • Programmable levels of sensitivity

 

 

 

 

 

 

 

 

 

 

 

Model

CGI420R

Loop Load

Min

Nom

Max

Quiescent Current

 

310μA

 

Operating Loop Voltage

18V DC

 

30V DC

Inputs

4mA

 

20mA

External PSU

15V DC

 

30V DC

Output Relays

 

 

 

Switching Voltage

24V DC

 

30V DC

Contact Rating

 

 

1A

Switching Power

 

 

30W

Environmental

-10

 

60°C

Operating Temperature

 

 

 

Humidity (Non Condensing)

 

 

95%RH

Standards

EN54: Pt2 & 4 BS5839 : Pt1 (Installation)

Compatibility

Suitable for use with Cooper Analogue Addressable Fire Systems

Dimensions

147 x 88 x 57 (mm)

Weight

0.25kg

Ingress Protection

IP40

 

Model

CGI420

Loop Load

Min

Nom

Max

Quiescent Current

 

310μA

 

Operating Loop Voltage

18V DC

 

30V DC

Inputs

4mA

 

20mA

External PSU

15V DC

 

30V DC

Environmental

-10

 

60°C

Humidity (Non Condensing)

 

 

95%RH

Standards

EN54: Pt2 & 4 BS5839 : Pt1 (Installation)

Compatibility

Suitable for use with Cooper Analogue Addressable Fire Systems

Dimensions

147 x 88 x 57 (mm)

Weight

0.25kg

Ingress Protection

IP40

 

CGI420

 4 - 20mA interface

CGI420R

 4 - 20mA interface (relay output)

 

Unfortunately no online technical support is available for this product.
Please contact our Technical support team:

Technical Support
techsupport@cooperfire.com
Tel: 01302 303350
Fax: 01302 303332