MX 32 Analogue and Digital Controller

Overview

The Oldham MX 32 Analogue and Digital controller is a compact, low-profile controller that continuously monitors gas detection and more generally any 4-20 mA, MODBUS RS485 signal from compatible detectors.

The MX 32 digital technology allows up to eight detectors to be distributed on two lines for increased cost savings.

The system primarily compromises of

a MX 32 ( 1 or 2 lines)
different modules

The Oldham MX 32 instantly handles the measurements of detectors and input modules. As soon as the measurements reach configured threshld, the internal buzzer and the LED indicators go off. At the same time, the corresponding relays are activated to drive the additional actions programmed by the user.

For more information about the Oldham MX 32 Analogue and digital controller, contact Air-Met Scientific today.

Features

Features of the Oldham MX 32 Analogue and Digital Controller Include:

Analogue or digital controller
Up to 8 detectors
Fully scalable
5" LCD back-lit graphic display
Five programmable events per detector
Smart kes make embedded multi-language menus simple to use
Lockable toggle latch

Specifications

Dimensions (wall-mounted version)	265 x 266 x 96 mm (10.4 x 10.5 x 3.8 inches
Ingress protection	IP55
Cable entries (wall-mounted version)	5 M16 cable glands, 4 to 8 mm² (8 to 11 AWG) outer diameter cable 2 M20 cable glands, 6 to 12 mm² (7 to 9 AWG) outer diameter cable
Display	LCD back-lit display + smart keys Display in video inverse in case of fault Customizable by user (display 1 to 8 channels simultaneously, fixed or scrolling, on events...) Bar graph with alarm threshold
Visual indicators	7 LEDs per line 1 LED fault indicator 1 LED fault indicator
Buttons	5 smart keys 1 audible alarm accept/reset button

MX 32 Operating Use Specifications
Operating temperature	-20°C to +50°C (-4°F to +122°F)
Storage temperature	-20°C to +50°C (-4°F to +122°F)
Humidity	5 to 95% RH
Power	100-240 Vac 50-60 Hz (35W) or 22-28 Vdc (92 W)
Consumption	250 mA min (without module)

MX 32 Measure Lines
Digital lines	2 maximum RS-485 communication, proprietary protocol, 9600 Baud 2 twisted shielded-pair cable
Analogue channels	2 maximum (4-20mA or Wheatstone Bridge) 0-23 mA analog signal input (4 to 20 mA reserved for measurement) or type OLC 10, OLC 10 Twin and OLC 100 flammable gas detectors (Wheatstone bridge type) 120 Ohm load resistance 2 or 3-core shielded cable detector dependant
Output Voltage	21 to 28Vdc (external)
Maximum current output per line	0,65 to 1 A with internal AC power or 1.5A with external DC powered
Maximum current output in total	0,65 to 1 A with internal AC power or 2x1.5A (with external DC power)

MX 32 Alarms
Per channel	5 alarm levels (A1, A2, A3, Overscale, Underscale) + 1 Fault Catalytic bead over range protection Programmable thresholds on instantenous or averaged values, rising or falling alarms, manual or automatic acknowledgement

MX 32 Output
On-board relays	4 fully programmable alarm relays + 1 fault relay (non-configurable) Dry contact relay, DPCO relays with contact rating of 2A / 250 Vca -30Vdc
External relays	Up to 16 fully programmable alarm relays Dry contact relay, DPCO relays with contact rating of 2A / 250 Vca -30Vdc
Digital outputs	RS-485 Modbus RTU
Analog outputs	Up to 8 output (4-20mA)