MSA General Monitors S4100C - 2 Specifications; Approvals; Functional

Model S4100C
2
2.0 Specifications
2.1 Approvals
Hazardous Area Standards
EN 60079-0, EN 60079-7, EN 60079-18, EN 60079-29-1
Code of Protection
Ex emd IIC T5 Gb (Tamb -40C +55C)
Ex emd IIC T4 Gb (Tamb -40C +70C) Cable insulation rated to at
least 110C
Application:
Combustible Gas Monitor
2.2 Functional
Measuring Range:
0-100% LEL
Measuring Resolution
1% LEL
Over-range Indication:
Display flashes for readings greater than 99% LEL, but continues to
display gas concentration up to 120% LEL.
Calibration Level:
User selectable 25% - 90% LEL in 1% LEL increments
A1 Trip Level:
User selectable 10% - 60% LEL in 1% LEL increments
A1 Open Collector Output
User selectable Energised/De-energised and Latching/Non-latching
A2 Trip Level:
User Selectable 10% - 60% LEL in 1% LEL increments
A2 Open Collector Output
User selectable Energised/De-energised and Latching/Non-latching
Fault Open Collector Output
Normally Energised
Analogue Output during Calibration
User selectable 0.0 mA, 1.5 mA and 2.0 mA
Modbus Baud Rate
User selectable 2400, 4800, 9600 and 19200 Baud
Modbus Format
User selectable 1/2 stopbits, odd/even/no parity, 8 databits
Modbus Node Address
User selectable 1 – 255; Address 0 is recognised as broadcast mode
Repeatability, Short Term:
5% LEL over 1 hour
Repeatability, Long Term:
10% LEL over 3 months
Accuracy (Linearity)
5% LEL
Temperature Variation
10% LEL over Temperature Range (-50C to +70C)
Pressure Variation:
10% LEL (950 mBar – 1100 mBar)
Humidity Variation:
10% LEL (20% RH – 90% RH)
Power up Variation:
< 3% LEL after 5 minutes
Response Time (input step)
T50 < 10 seconds
T90 < 23 seconds