ELT Sensor MB-350U-V User manual

User’s Guide for MBUser’s Guide for MB--350U350U--VV--(485M)(485M)
Ver. 1.15
ELT SENSOR

ØINDEX
I. Hardware
1 Packing List
II. ELT_WSD emulation Program
2 Installation
3 Front Panel Display
1 Connection with PC
2 Monitoring
3 CO2 Level Setting Change
3 Front Panel Display
4 Level LED (CO2)
5Specifications
6 Calibration
7Cautions
III. RS-485 Protocol (Sending only) - Option
1 H/W Interface
2 Mod-Bus Protocol
1

Hardware
I.
1 Packing List 2 Installation
1. Main Body/Holder
2. 2. AC/DC 12V Adaptor
3. Manual
4. USB Cable
•Connect power jack to main body.
(Requiring 2 minutes stabilizing time)
•USB cable is available for connection to Computer
and ELT_WSD program enables alarm range setting
and measured data save on Computer.
2

5Specifications
3 Front Panel Display
§MB-350U-V Model
CO2 (ppm)
Mini USB port
TEMP. ( ℃ )
R.H. (%)
VOCs Level LED DisplayCO2 Level LED Display
Description
Product Air Quality Monitor(CO2, VOCs, Temperature,
Humidity) (RS-485Modbus is optional)
CO2 Sensing Method
Reading range / Resolution
Accuracy
NDIR (Non Differential IR) type
0 ~ 9,999 ppm / 1ppm
30ppm ±3%
Temperature Sensing Method
Accuracy with Reading range
Semiconductor Type
±0.3 ℃typical (-40℃~ 80℃)
Humidity Sensing Method
Accuracy with Reading range
Semiconductor Type
±2% RH typical (0~ 99% RH)
Alarm On/Off
Switch
4 Warning Level (CO₂)
CO2
LED
Very High ≥ 1,400 ppm
High 1,000 ~ 1,400 ppm
Normal < 1,000 ppm
Humidity Sensing Method
Accuracy with Reading range
Semiconductor Type
±2% RH typical (0~ 99% RH)
VOCs Benzene, Toluene, Smoke, etc
Power Supply DC 12V/1A AC/DC adaptor
Current Consumption Normal : 56mA, Peak < 412mA
CO2, VOCs Level LED display Red/Orange/Green LEDs
Alarming On/Off switch Sounds Melody can be settable on/off with 3
seconds press.
Operating Condition 0 ~ 50℃/ 0 ~ 95%
Storage Temp. -30℃~ 70℃
Dimension (main body) 135.0 x 90.0 x 28.0 mm (W*H*D)
Certificate CE, ROHS
3

7 Cautions
Please keep followings to prevent damage
and malfunction of product.
1) Use provided adaptor. When using other
adaptors, make sure to use proper rating
and standard product. It may causes
damage and measurement error.
6 Calibration
‘M’ : Manual re-calibration during 10 minutes
in fresh air (or 400ppm CO2gas) - MCDL
‘A’ : Automatic calibration mode – ACDL
(Monthly auto calibration , For HVAC, ventilation usage)
2) Do not disassemble, modify or repair the
products.
3) Avoid shock, vibration, direct sun light.
None: Factory calibration operation mode
(for Green house and other Agricultural
usage)
‘A’ : Automatic calibration mode – ACDL
(Monthly auto calibration , For HVAC, ventilation usage)
‘Co’ : Not available (don’t care)
4

①Select model “B-530H/MB-350”
②Press "RESCAN" button and
(auto) select USB Serial Port (COM xx)
③Select 19,200 bps
ELT-WSD program is developed for
customer to change the CO2 Alarm range
of MB-350 with USB 2.0 interface of PC.
Execute "ELT_WSD_MB-350.exe" with
mini-USB cable connected between PC and
MB-350, of which 12V Power (12V AC/DC
Adapter) should be provided.
ELT_WSD emulation Program
II.
1 Connection with PC
123
ELT-WSD program is developed for
customer to change the CO2 Alarm range
of MB-350 with USB 2.0 interface of PC.
Execute "ELT_WSD_MB-350.exe" with
mini-USB cable connected between PC and
MB-350, of which 12V Power (12V AC/DC
Adapter) should be provided. 123
5

2 Monitoring ④Press “Monitoring”
⑤To save monitored data into file, mark check(‘v’) on LogFile(CSV), saved
to sub directory of ELTWSD_EK100 prg.
⑥mark ‘v’ on Time stamp menu add time for further analysis.
4v
3
v
c0996t+262h40e0000o000764 ⇒c 0996 t+262 h40 e0000 o0007 64
®CO2 : 996ppm , temp :+26.2°C , humidity :40% , e option (not available),
VOC: 0000(‘V’ Model) CO : 0007ppm 64:Checksum
5
6

As the ‘Monitoring’ Button is pressed.
①Select "MB350_BATCH" of ‘Send Command’ menu
②Type in ‘ppm’ value for CO2 Level , the default values are L0 : 1000 ppm, L1 : 1400ppm, L2 : 2500ppm
(Low ) : (High ): (Very High )
[GREEN] < L0 < [ORANGE]< L1 < [RED]
③Click Box "Send Command“ so that changed Alarm Level L0 & L1 &L2 to be fixed.
CF) L2 (Sound Alarm range) is deactivated.
3 CO2 Level Display Settings lMelody Warning
- MUTE : Press the switch for 0.5 sec.
- Off/On : Press the switch for 3 sec.
12
3
7

1 H/W Interface
Pin No
Pin Name
Note
1
485A
RS-485 Modbus.
2
485B
3
GND
A. Pin Connection: 3 pin Connector (CN1)
RS-485Modbus Protocol (Option)
II.
B. Communication Specification
•RS-485(2 Wire, half-duplex)
Parameter
Description
Baud rate
19,200 BPS
Data Bit
8 Bits
Parity Bit
None
Stop Bit
1
8

2 Modbus Protocol
2.1 Hold Register Specifications
•Mapping Base Address : 0x0050
•Hold Register. Max. Read Size : 4
Register
Address
Value
Data Type
Unit
Description
0x0050
Co2
2 Byte Integer
PPM
Co2
Ex) 800 -> 800 PPM
0x0051
Temperature
2 Byte Integer
℃
Temperature
Ex) 255 -> 255 / 10 : 25.5℃
0x0052
Humidity, VOC
2 Byte WORD
HIBYTE: Humidity Ex) 35: 35%
LOBYTE: VOC Ex) 0x40: HIGH,
0x10: MIDIUM,
0x00: LOW
0x0052
Humidity, VOC
2 Byte WORD
HIBYTE: Humidity Ex) 35: 35%
LOBYTE: VOC Ex) 0x40: HIGH,
0x10: MIDIUM,
0x00: LOW
0x0053
Reserved
2.2 Supported Function Code
•Currently supported only code 03 and exception response.
•Error code 0x83 or other(CODE + 0X80)
Exception code
Description
01
Exception of Function code
02
Exception of Starting Address
03
Exception of Quantity of Registers
04
9

Thanks for Reading
Contact : Charlie Wang/Lucy Kim, TEL: [phone], [e-mail]
10