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DIGIMATIC DML4AI Capacitance Level Control
ATEX EN 60079/IECEx 60079 (Dust Zone 20)

ATEX IECEx Approval CE EXDIGIMATIC DML4AI Capacitance Level Control EN 60079/IEC 60079 (Dust Zone 20)
The Digimatic DML4AI sensor is a fixed point capacitive level control suitable for detecting liquids, powders & granular solids. Approved to ATEX EN 60079 & IECEx IEC 60079 standards for Explosive Dust Hazard Area use.
Automatic high/low level calibration with full manual override. LED display shows calibration & run mode readings.
110/230 Vac/24 Vdc supply connections in same unit. Volt free, change over relay output. Power shield compensator, prevents false signalling due to material build-up on probe rod. Adjustable timer to prevent false signalling from ‘splashing’ materials. Available with long or short power shield or flush probe mounting options. Simple calibration (Various length probe available). Mounting flange available as an option.


Supply110/230V ac, 50/60 Hz. 24V dc (Stabilised)
DC Supply Tolerance-6% to + 2%
Supply Cable SizeMin: 1 sq. mm Max:4 sq. mm
Fusing/Cct Breaker (Max. Rating)5A
Load1.5VA ac/50mA dc
Ambient Temperature-20°C to +50°C
Sensitivity0.5 picofarad
Output1 set of volt free relay change-over contacts, rated 2.5A 230V ac non-inductive
Output ModeHigh or low level, selected via a switch
Time DelayAdjustable via single pushbutton. Prevents false signalling due to spurious splashing etc.
CalibrationAutomatic or manual calibration using independent push buttons for covered & un-covered conditions
IndicationLED display for calibration purposes & timer settings.
LED's for Power, Probe covered & Calibrating
Mounting/Fixing1" BSP Male
mounting flange available as option
Connections/WiringVia screw terminal block
EnclosureFlame retardant, glass filled nylon. (Modified polyamide 66). Other parts: stainless steel, PTFE
CompensationPowershield compensation for material build up on probe to vessel (earth/ground). Prevents false signalling
WeightDigimatic DML4AI: 2Kg
100mm x 28 dia rod: 250g
200mm x 16 dia rod: 250g
1 metre rod: 1.5Kg
2 metre rod: 3Kg
10 metre wire rope/weight: 1.25Kg
Options/TypeStandard unit - Digimatic DML4AI - 822-029
Short (variable) powershield version - DML4AIV
Flush mounting version - DML4AIFP
Probe rods
and ancilliary parts
Probe Rods
100mm x 22mm dia. - 822-006
200mm x 16mm dia. - 822-005
1000mm (1mtr) x 16mm dia. - 822-003
2000mm (2mtr) x 16mm dia. - 822-004
10mtr S/S wire rope & weight assembly - 823-004
(1mtr rod , 2mtr rod & 10mtr wire rope assembly can all be cut to suitable length on site)
Ancilliary Parts
1" bsp probe mounting flange
Probe Mounting Flange 98mm dia, - Polypropylene, consists of
4 x 9mm mounting holes on 127 PCD, 1" BSP fitting for probe unit
ApprovalsexII 1 (1)D Ex ta[ia] IIIC
T100°C Da IP65 Tamb= -20°C to +50°C
ex tD (iaD) A20 IIIC
T100°C Da IP65
(Dust zone 20)


Digimatic DML4AI
Probe Rod options



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