Thermometer in stainless steel with capillary and switch contacts

Transcription

1 Design Type Case diameter Thermometer in and switch contacts 7308 = back flange for wall mounting 7312 = front flange for panel mounting 7310 = mounting bracket for wall mounting Dim 100 mm or 160 mm Accuracy Class 1,0% DIN EN Case Mounting Temperature element Working temperature Capillary Stem Length of stem Connection Working pressure Stainless steel with bayonet type bezel white dial of aluminium. Laminated safety glass. Back flange, front flange or mounting bracket Inert gas expansion system 100% of range by permanent measuring The endvalue can be excided 20% by short time Capillary of stainless steel (dim Ø2 mm) Ø 6, 8, 10 or 12 mm of stainless steel Stem length from 70 mm to 300 mm Type 1 = Plain stem without thread Type 2 = Male nut Type 3 = Union nut Type 4 = Compression fitting on stem Type 6 = Compression fitting on capillary Max pressure rating without thermowell = 25 bar Ingress protection IP 65 per EN Switch contacts Switch functions Electrical connection Optional extras Sliding contacts type 811, magnetic snap-action contacts type 821 or inductive contacts type 831. One, two or three switch contacts adjustable over the full extent of the scale range. Single or double function, see table next page Junction box at side Scale range in C+F (dual scale) Case with liquid damping (not by contact type 811) Version per ATEX Ex II 2 GD c TX Contacts with separate circuits Changeover contacts Temperature range C C 0+60 C 0+80 C C C C C C C C C

2 Magnetic snap-action contact type 821 Magnetic snap-action contact. Power supply max 250 VAC. Maximum load 30W, 50 VA, Current ratings max 1,0 A, Maximum load max 20W, 20 VA with liquid damped case Contact point material silver-nickel alloy, hysteresis 2-4% of full scale range. Single contact Double contacts Triple x max 1 x min 2 x max min - max max - min 2 x min 2 max 1 min by rising and falling and breakes Sliding contact type 811 Sliding contact. Power supply max 250 VAC. Maximum load 10W, 18 VA, Current ratings max 0,7 A (type 811 can not be delivered with liquid damped case) Contact point material silver-nickel alloy, hysteresis 2-4% of full scale range. Single contact Double contacts Triple x max 1 x min 2 x max min - max max - min 2 x min 2 max 1 min by rising and falling and breakes

3 Inductive contact type 831 Inductive contact type 831 is used in conditions with extremely swift changes or in explosion hazardous areas type Ex. Contact point material silver-nickel alloy, hysteresis 0,5% of full scale range. The inductive contact must be connected to a control unit which provide a low voltage to the contact. The control unit operates together with the inductive contact for functions as making or breaking the circuit. See datasheet E Single contact Double contacts Trippel xxx On special request 1 x max 1 x min 2 x max min - max max - min 2 x min Case with back flange type 7308 Type Case dim b1 c d d1 d2 d3 D1 D , 8, 10, , , 8, 10, ,

4 Case with front flange type 7312 Case dim b1 c d d1 d2 d3 D1 D , 8, 10, , , 8, 10, , Case with mounting bracket type 7310

5 Connection and stem Connection typ 1 Plain stem without thread Immersion length L1 and Connection typ 2 Male nut Connection typ 3 Union nut Connection typ 4 Compression fitting on stem Connection typ 6.1 Compression fitting on capillary Connection typ 6.2 Compression fitting on capillary with spiral protection hose Connection typ 6.3 Compression fitting on capillary on spiral protection hose