Gas Detection and Alarm Systems

Indicator Unit / Alarm Unit V3 series

Features

  • Easy to notice the alarm status with 3-color LED display.
  • Maintenance Mode which will stop the alarm output to external devices during the maintenance, to allow a maintenance work alone.
  • It can be replaced in the existing COSMOS gas detection system due to the failures.
  • The cover attachment of PCB makes safe to use.
  • The switch cover prevents accidental operation.
  • The switch cover for alarm unit can also be selected (option).

Specifications

Model V3
Type Hv, Hi, Cv, Ci, Tv, Ti, D, O M
Gas Concentration Display 3-color LED bar graph (50 split)
Alarm
Indication
Power Lamp Normal: Green POWER lamp lights up, Initial energization: Green POWER lamp flashes for 30s.
Alarm Lamp Red ALARM lamp flashes (lights up on reset)
Trouble Lamp Yellow TROUBLE lamp flashes
Alam Set Value Adjustable within the detecion range for 1st and 2nd stage alarm
Alarm Accuracy Combustible gas: Within ±25% of alarm set value Depends on the detector head
specifications
Toxic gas: Within ±30% of alarm set value
Oxygen: Within ±1.0vol% of alarm set value
Response Time Combustible gas: Within 30s at 160% concentration of alarm set value Depends on the detector head
specifications
Toxic gas: Within 60s at 160& concentration of alarm set value
Oxygen: Within 5s at 10vol% (oxygen deficiency)
External Output Contact Output 1c no-voltage (100 VAC/1 A resistance load, 24 VDC, 1 A-resistance load), 1a for trouble contact
Analog Output 4-20mADC
Power Source 24 VDC ±10%
Power Consumption Approx. 5.0W (excluding power consumption of extractive gas detector) Approx. 5.0W (excluding power
consumption of detector)
Other Functions Linearization, maintenance mode, zero suppression
(Option) Peak hold function, alarm delay, low flow arte alarm function (can be set by connecting detector)
Operating Temperature/Humidity* -10 to +40 °C
10 to 90 %RH
Dimensions W36 x H144 x D70 mm
Weight Approx. 600g (including 450g single case)

*excluding rapid temperature change, non-condensing

Connectable Gas Detectors

 

Indicator Unit Models
* is conventionalmodels (v, v2 series)
Connectable Detectors Gas Detected
Diffusion Extractive
Combustible

Gas (For ppm)

type Hv
*V2H
KD-5A /KD-5B PD-5N/PD-5F/PD-4HP  

Combustible Gases (CH4/ LPG etc.)

type Hi
*VH
KD-2A/KD-3A/KD-14 PE-2CC/PE-2DC

/PD-14

Combustible

Gas (For LEL)

type Cv
*V2C
KD-5A/KD-5B PD-5N/PD-5F Combustible Gases (CH4/ LPG etc.)
type Ci
*VC
KD-2A/KD-3A PE-2CC/PE-2DC

/PD-14

For NH3 *VZN KD-2AS PE-2CZ NH3
Inert gas

/For vol%

type Tv
*V2T
KD-5A/KD-5B PD-5N/PD-5F H2/Helium/Argon

/CO2/CH4

type Ti
*VT
KD-2A/KD-3A PE-2CC/PE-2DC
Toxic gas type D
*VD
*V2D
KCM-3A/KD-5D

/KS-2D

PS-2CD/PS-2DE

/PS-2CKIII/PS-2DKP

/PS-2DPS/PS-4DP

Semiconductor manufacturing gases

/Toxic gas

Oxygen type O
*VO
*V2O
KD-5O/KS-2O PS-2OP/PS-2OE

/PS-4OP

Oxygen
For analog

output

type M
*V2M
KD-8/KD-12/KS-7 PD-8F/PD-8N/PS-2I/ PS-6DKP/PS-7/IRC

/PD-12

As per specifications

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