KSS524 Infrared SF6 Gas Sensor Module
Table 1 Version history
| version | date | description |
| V1.0 | 2016-10-12 | V1.0 released |
| V2.2 | 2018-03-06 | Adapt product attribute modifications |
Table of Contents
1.Overview.......................................................................................................................
4
2. Technical
Parameters............................................................................................
5
3. Structural dimension
drawing................................................................................
6
4. Signal
output.......................................................................................................
6
5. Installation
instructions.......................................................................................
11
6. Problems that should be paid attention to in
maintenance...................................... 11
7. Ordering
instructions..........................................................................................
11
8. Ordering
Information..........................................................................................
12
9. Contact
Details...................................................................................................
13
1.Overview
SF6 gas is widely used as an insulating medium and arc
extinguishing gas in power equipment, especially in high-voltage
circuit breakers, transformers, transformers, capacitors,
arresters, fuses, etc. If leakage occurs, the pressure of the
equipment is reduced and the insulation capacity is reduced;
Pollute and destroy the atmospheric environment, increase the
greenhouse effect; Accumulation in low-level spaces, resulting in
accidents such as lack of oxygen in the brains of staff and even
rapid asphyxiation; Under the influence of partial discharge, high
temperature and other factors, SF 6 gas will produce highly toxic
decomposition substances such as SF 4, SF 2, SOF2, etc.
KSS524 is a gas sensor module using NDIR infrared absorption
detection principle, which determines the concentration according
to the absorption of SF6 gas at 10.5um. KSS524 adopts MEMS light
source, optical cavity with special structure and dual-channel
detector to realize spatial dual-optical path reference
compensation, and microprocessor for signal acquisition, processing
and output. KSS524 has a UART digital interface to run Modbus ASCII
protocol, which is compatible with Smartgas' modules; Provides
digital calibration zero and sensitivity functions, and manually
implements calibration zero function.
KSS524 can be widely used in SF6 gas leak detection and other
occasions SF6 gas concentration analysis in the power industry.
KSS524 diffusion KSS524 pump suction type
| parameter | symbol | minimum | Typical values | maximum | unit |
| Storage Temperature | Tstg | -20 | - | 80 | °C |
| Operating Temperature | TA | -20 | | 60 | °C |
| Operating Humidity | HA | 0 | | 90 | % RH |
| Work Pressure | PA | 0.8 | | 1.2 | atm |
| Supply Voltage | Vs | | 9 | 11 | V |
| Maximum Operating Current | Iavg | 100 | 120 | 150 | mA |
| Range (customizable) | | | 1500 | | ppm |
| Measurement Accuracy | Acurracy | | ± 5ppm or ±2% true value is the greater | | %vol |
| T90 | Pump Suction | | | 5 | | second |
| Diffusion | | 30 | | second |
| Repeatability | Zero | | | <±50 | | ppm |
| 50%F.S. | | | <±5%. Measurements | | |
| Life Span | | | 10 | | year |
The sensor is installed with a reference structure diagram with a
positioning hole spacing and an aperture of 3.2mm
The wiring socket spacing is 2.0mm
The sensor should be calibrated regularly, it is recommended that
it be no more than 3 months, and calibration is not required if automatic calibration is
turned on for long-term operation
Do not use the sensor for a long time in an environment with a high
density of dust
Please use the sensor within the range of the sensor's power supply
In order to be able to purchase the specific specifications
required, please provide the following information
1) Sensor name 2) Sensor range 3) Sensor measurement accuracy
For example, KSS524, 0-1500ppm
| Order information sheet |
| KSS524 | KSS524 infrared SF6 gas sensor module |
| xxxx | The sensor measures the range of CO2 concentration in ppm, with a
minimum value of 2000 and a maximum value of 50000 ppm. |
| 2000 | Range 200ppm (default). |
| 10000 | Range 10000ppm |
| 50000 | Range 50000ppm |
| encode | The reaction speed is divided into two types: fast and slow |
| S | Slow (default). |
| Q | fast |
| encode | Baud rate selection, support commonly used baud rate 2400 9600
19200 38400bps, 8 bits of data, 1 bit of stop bit, no check bit:
Confirm special needs before ordering. |
| Custom | Confirm the baud rate before ordering |
| 2400 | 2400bps baud rate |
| 9600 | 9600bps baud rate |
| 19200 | 19200bps baud rate |
| 38400 | 38400bps baud rate (default) |
| encode | Serial port protocol |
| Modbus-RTU | Standard Modbus-RTU protocol (default). |
| Modbus-ASCII | Standard Modbus-ASCII protocol |
| Modbus-Self | Modbus private protocol |
| KSS524 | -2000 | -S | -38400 | -Modbus-RTU | |
URL: www.kacise.com
Tel: +86-29-17719566736
Email: sales@kacise.com
Address: Tangyan South Road, Xi'an City, Shaanxi Province, China
Appendix
| Shorthand | Full name |
| VOL | 1% VOL refers to 1% of the volume of a particular gas in air. |
| PPM | 1PPM means that the volume of a specific gas in the air accounts
for one millionth. |
| O2 | Oxygen molecules |
| LCD | LCD display |
| RS485 | Asynchronous serial port 485 |
| DC | direct current |
| AC | Communication |
| PVC | polyvinyl chloride |
