Formaldehyde CH2O Sensor Transmitter

By ALVI  

• MSR Germany

ALVI – India in association with ALVI – Australia we are pleased to offer MSR Germany  Formaldehyde CH2O Sensor Transmitter in India .

DESCRIPTION
CH2O transmitter including digital measurement value processing and temperature compensation for the continuous monitoring of the ambient air to detect formaldehyde concentrations. Integrated in the transmitter there is a comfortable calibration routine with selective access release. The ADT-53 possesses a standard analog output (0) 4- 20 mA or (0) 2– 10 V DC, and an RS-485 interface. 2 relays with adjustable switching thresholds are available as an option.
APPLICATION
For the detection of formaldehyde within a wide range of industrial and commercial applications. Due to the standard output signal and the RS-485 interface the CH2O transmitter is compatible to the PolyGard Gas Controller series MGC and DGC by MSR-E as well as to any other electronic control or automation system.
FEATURES
 Digital processing of the measurement values incl. temperature compensation
 Continuous monitoring
 Low zero point drift
 Good stability to poisoning
 Long-life sensor
 Modular plug-in technology
 Easy maintenance
 Comfortable calibration with selective access release
 Reverse polarity protected, overload and short-circuit proof
 (0) 4 – 20 mA / (0) 2 – 10V analog signal output, selectable
 Serial interface RS-485
 IP65 protected
 Manual calibration via potentiometer (option)
 Manual addressing for RS-485 mode (option)
 4 – 20 mA analog input for an external AT transmitter (optional)
 Approved according to EN 61010-1; ANSI/UL 61010 1; CAN/CSA-C22.2 No. 61010-1
 Relay output (optional)
 Integrated buzzer (optional)
 LED flashlight (optional)
 LCD display (optional)
 LED status display (optional)
 Heating (optional)
 Duct mounting (optional)
Contact us on:
Tel: +91 141 2293968,  Mail Us  -info@alviautomation.com
www.alviautomaton.com  is a registered authorized for India and Asia Zone.

SPECIFICATIONS
General sensor performance
Detected gas
Formaldehyde (CH2O) Sensor element Electrochemical, diffusion
Measuring range
0 – 10 ppm (factory set)
adjustable from 0 – 5 to 0 – 10 ppm Temperature range -10 °C to + 45 °C (14 °F to 113 °F) w/o heating
Pressure range
Atmospheric ± 15 % Humidity range 15 – 90 % RH non-condensing (abrupt change of the relative humidity may cause a short-time sensor signal)
Storage temperature
5 °C to 30 °C (41 °F to 86 °F) Storage time Max. 3 months
Mounting height
0.3 to 0.8 m (1 to 2.5 ft.) Accuracy 0.01 ppm
Repeatability
< 2 % of reading Long-term output drift < 2% signal loss/month
Response time
t90 < 50 sec. Sensor life expectancy > 3 years/normal operating environment
Cross sensitivity1
Reaction (%) Carbon monoxide; CO 10 -18 %
Hydrogen, H2
1 – 3 % Electrical
Power supply
18 – 28 VDC/AC, reverse polarity protected
(for 2- wire mode only VDC) Power consumption (without options) – Analog mode – Bus mode 22 mA, max. (0.6 VA) 12 mA, max. (0.3 VA)
Output signal