SPECIFICATION

Model : VOC04

GSM MODEM:
3G RTU.

VOC Meter:
Range: 0 – 1000 ppm (can be set to 0 -100ppm, 0 – 250ppm, 0 – 500ppm)

Testech custom design PD1000 designed for sewer measurement.

Built in Temperature/Humidity Sensor.

Proprietary mechanism solve contamination and condensation at PID lamp.

Fully digital interface and control via RS485.

Full diagnostic information of the PID sensor and pump condition.

Ease of quick bump check capabilities.

Designed for interface with Testech VOC04 RTU and gas conditioning sub system.

Response Rate: 15secs

Pump Flow Rate: Up to 800cc/minute.

Long Term Proven Reliability:
Maintain +/- 5ppm of calibrated range measurement in Last IC under waste Treatment environment.

Power Input:
External 240VAC +/- 20%

Battery Backup:
Up to 6 hours.

External Serial Interface
RS232C or RS485 for Sensor or Meter Interfacing such as PLCs, Recorder, Gas Sensing Sampler

Dimension:
800mmWx400mmDx1450mmH

Weather Proof:
IP66 insects ingress free.

The system has been designed from the ground up for monitoring VOC in sewer and dealing with the issue that plague standard off fixed PID VOC Sensor that was not design for use in sewer environment. Simply just adding a Gas dehumidifier in the gas path will reduce but not eliminate the problem, neither does claim of patented humidity compensation.

This VOC monitoring system was designed after years of operating in sewer measurement condition and has resolve the issues of contamination and dead or low reading associated with normal simple continuous VOC Measurement system.

VOC04 VOC Trend with intelligent control algorithm

Below is trend of VOC off a waste water sewage with 100% saturating humidity and contamination particle. Testech VOC04 is able to withstand such harsh measurement environment due to our propreity gas sampling and control algorithm, providing VOC alert without false alarm

VOC04 is fully closed loop digital control for every aspect of the sampling, purging, cleaning, measurement, post measurement, post purging, alarm tracking cycle. This is possible as the VOC Meter was co develop by Testech allowing the RTU to have full digital control, access to operating and measurement parameters at the core firmware level. The VOC Meter operation is under the full control of the RTU. The Entire system is a fully tight controlled operational with every aspect of the system cycle of operation under the supervision and control of the custom design firmware on the PM052 RTU.

The PID1000 has built in Sampling Pump, purging valve and the pump can be set to run at maximum of 800 cc/minutes which is adjustable.

The PID1000 can be calibrate to 0 – 50ppm, 0 – 100ppm, 0 – 250ppm, 0 – 500ppm and 0 – 1000ppm

Long Life Pump condition and Lamp for 3-5 years.

Summary Of Features

Fast gas measurement response rate of 15secs (0 – 100ppm)

Full digital control of the entire system for the entire phase of gas preparation, sampling, measurement, post measurement, purging, cleaning phase. The VOC, Temperature, RH parameter are digital acquire without using any analog output.

Built in High capacity 1L/minutes Dehumidifier maintain RH to no more than 25% RH.

VOC Meter has built in temperature and humidity sensor and voc measurement compensation.

Complete system health status is capture by RTU and allows user to know if the system health state and report during health check or user query.

Eliminate Gas sampling path water condensation along the tubing due to intelligent control of gas sampling and purging operation.

Aqueous sample fill detector indicate of the water sample are actually capture in the bottle.

Low cost of hardware maintenance due to low wear and tear unlike continuous measurement system (which are lower cost)

No False Alarm. Alarm and VOC measurement value and validity are continuously tracked by RTU to ensure there is no false alarm. Ambient VOC is always track, along with VOC measurement. Duration of each stage of alarm are continously capture and reported

Fully digital measurement eliminate analog inaccuracies of analog conversion

Full diagnostic of the sensors pump, sensors condition as well as subsystems are detected and report digitally.