A low AC voltage is applied between the probe electrode and the tank wall (or reference electrode in case of insulated tank). When the liquid comes in contact with the electrode tip, a conductive path is established between the sense electrode and the tank wall / reference electrode. This current is sensed, amplified and made to operate a relay whose contacts in turn can be used for annunciation / control.
Cast aluminium, weatherproof Stoving enamel painted suitable for back panel / wall mounting
3 Nos. of 1/2″ BSP
1 1/2″ BSP screwed / Flanged 2″ ANSI, 10 mm thick
Others (as per size and rating specification)
Rod Probes
Rope Probes
S6: SS-316
S4: SS 304
SL: SS 316 L
PV: PVC
PT – PTFE (Total Teflon)
HD –Hast Alloy C
PC –PTFE Coated (Anti-corrosive)
MS: MS (Electroplated)
110 or 230 V AC (15 to +10%) 50 Hz (as specified in the order)
One Relay / Two sets / Three Sets of potential-free change over contacts rated at 6A 230 V AC, 50Hz for non-inductive load
5 VA approx.
High and Low Field selectable
0.5 second
0.5 to 20 seconds for probe covered and uncovered condition (on request) High or Low Field selectable
25μ Siemens
12 V AC (across probe & tank wall / grounding electrode)
< 4 mA (between probe & tank wall / grounding electrode through liquid)
Operating Temperature 20°C to +60°C
Pressure 10 Bars
2 LED’s
Red: Alarm, Green: Normal