- Description / Features / Spec
MSA 9010/9020 SIL - Gas Control System
The MSA 9010/9020 SIL controllers are reliable and sophisticated gas warning systems, that are compatible with a great range of gas detectors and best suited for smaller gas detection systems. The 9010 SIL rack module operates with one channel per module whereas the 9020 SIL rack module operates with two channels per control module. With the upgraded design, workers and facilities can have increased reliability in terms of safety as this controller is now SIL 2 compliant.
The 9010 SIL Control Unit is designed for one general purpose input such as a catalytic combustion detector, semiconductor detector or 4/20 mA transmitter. The 9020 SIL Control Unit is very similar however, can connect two general purpose inputs. Both are available as either a wall mounted unit for installation directly to a wall or a 19” rack module to be installed into a 19” rack (Refer to operating manual for more information).
With the modular design and dual channel capability, users can have up to 20 channels within a 19” rack. Furthermore, connect remote sensors with 2,3 or 4 wire cabling.
There are many other benefits to the user such as: being able to configure the controller without the use of additional tools; operating anomalies are displayed via the error and failure messages on the LCD screen; detectors can be changed without having to renew the controller card; configurations can be checked quickly; and it can be applied across a variety of applications.
These applications include: gas-processing industry, paint and solvent industry, chemical and petrochemical industry and wastewater treatment plants or similar.
- 3 alarm thresholds: C (Caution), W (Warning) and A (Alarm)
- Passwords preventing unintended unit configuration
- LCD display with 4 keypad buttons (ESC, Enter, up, down)
- Possible to configure dual state inputs (digital)
- Minimise false alarms with the internal diagnostics feature
- Backwards compatible with prior 9010/9020 versions
- Individual modules have their own power supply
- IP65 Rated (Wall Mount)
100 VAC–240 VAC 50/60 Hz
24 VDC (19–32 VDC), ripple
Power Consumption (no load)
24 VDC; 450 mA
24 VDC; 350 mA (4–20 mA transmitters)
Sensor Connection Modes
For wires up to 2.5 mm²
Passive catalytic detectors; 0 (4)–20 mA transmitters; Switch inputs
1x 0 (4)–20 mA (user configurable)
2x 0 (4)–20 mA (user configurable)
Max. loop resistance 500 Ohms
RS485 half-duplex, Modbus RTU; Ethernet, 10/100 Mbps, Modbus TCP, Website
C [Caution] W [Warning] A [Alarm]
2x SPDT relay 8 A/250 VAC, resistive load, load current 10 mA–1.6 A, applies to WARNING and ALARM
1x SPDT relay 8 A/250 VAC, resistive load, load current 10 mA–1.6 A
1x SPDT relay 8 A/250 VAC, resistive load, load current 10 mA–1.6 A
30 mA, 24 VDC max, resistive load, related to CAUTION
Automatic or manual
0–600 s (for non ATEX mode only)
Span and Zero drift
< ± 0.5 % f.s. ± 1 digit/month
± 1% full scale ± 1 digit
–10° C to +55° C
–25° C to +60° C
Max. 90% R.H. non-condensing
10–30 Hz, amplitude 1 mm, 31–100 Hz, max. acceleration 19.6 m/s²
Back lit LCD, 4-digit, 7-segments
Automatic return to measurement after max. 6 minutes
Configuration and log book data
Stored in non-volatile memory
AC/DC in case of power failure
Redundant power inputs, automatic electronic switch over in case of main break down
Dimensions and Weights
482.6 x 132.5 x 300 mm
279.5 x 132.5 x 300 mm
157.5 x 132.5 x 300 mm
Dimensions (W x H x D)
255 x 180 x 90 mm
Front panel size
3 U x 8 T.E.
EN 61010:2011 (Low voltage directive)
EN 50270:2015 (EMC)
EN 60079-29-1:2007 (ATEX Perfomance)
EN 50104:2010 (Oxygen Perfomance)
EN 50271:2010 (Software)
EN 61508:2010 (SIL 2; Functional safety)
ATEX performance II (1) G (2) G
Certificate BVS 16 ATEX G 001 X
SIL 2 suitable
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