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EST-VOCScan800 Fixed VOC Detector

  • Automatic / manual zero calibration

    Equipped with many selectable functions

    PID lamp: 10.6eV (Krypton)

    Response time: T90 < 20s (Isobutene)

    Linearity: 0-100ppm: >98%

Description

EST-VOCScan800 is newly developed PID type VOC detector. It has built-in self-cleaning and self-zeroing functions and can be used to detect a wide range of volatile organic gases (VOCs).

Features

Automatic / manual zero calibration, manual zero calibration on site
Equipped with many selectable functions
Multiple detection ranges (0.0-100.0ppm, 0-1000ppm and 0.00-20.00ppm)
Default factory detection range is 0.0-100.0ppm
Built-in intelligent processor can manage multi-port valves and regulate the flow of clean air to the detection air chamber
With self-cleaning function, the detector can wash away the pollutants in the sensor through the circulation of clean air, which ensures the measurement accuracy of the sensor, thereby reducing the workload of on-site maintenance.
End user can set the time of self-calibration and self-cleaning cycle
Cleaning Interval / Self-Zero is 60 minutes

Application

This detector is widely used in gas detection in petroleum and petrochemical industries, refineries, chemical plants, metallurgical industries, power industries, and other places that may produce harmful gases to the human body.

Specifications

PID lamp

10.6eV (Krypton)

Detection range

Standard: 0.0-100.0ppm (resolution: 0.1ppm)
Optional: 0.00-20.00ppm (resolution: 0.01ppm)
Optional: 0-1000ppm (resolution: 1ppm)

Accuracy

Range 0.0-100.0ppm: ±2% F.S.
Range 0.00-20.00ppm: ±2% F.S
Range 0-1000ppm: ±5% F.S.

Response time

T90 < 20s (Isobutene)

Linearity

0-100ppm: >98%

Power supply

DC9V to DC36V (Max current 125mA @DC24V)

Display

LCD screen (200×140 pixel with backlight)
LED indications for normal, alarm and fault

Alarming signal

Audible and visual

Ex grade

Ex d IIC T6 Gb / Ex tD A21 IP66 80°C

Ingress protection

IP66

Working temp.

-40°C -55°C

Signal output

4-20mA analog signal
MODBUS RS485
3 dry relays (capacity DC30V/3A)

Dimension

134mm×125mm×125mm (5.25”×4.90”×4.90”)

Weight

About 3.5kg

Operation

By magnetic rod / IR remote controller

Calibration

Zero point = activated carbon canister

span calibration

100ppm Isobutene or 20ppm Isobutene

Info Request

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