Industrial meters for liquid fuel

Liquid fuel meter with a mechanical roller counter device CONTOIL ® control VZO 15, 20, 25, 40, 50 is designed to be installed on industrial burners and boilers, as well as locomotives and riverboats on all engines, witch fuel consumption is in the range 10 to 30 000 l / h.

The meter has a threaded connection diameter DN 15, 20, 25, 40, 50 mm.
Temperature of fuel up to + 130 C (+ 180 ° C)
Nominal pressure in the fuel system - up to 16 bar with a screw fitting (RC) and 25 to 40 bar with flange connection (FL)

The boundary of the measurement errors: ± 1% of the actual value, the accuracy in repetition ± 0,2%. Degree of protection IP 65.

Installation options are horizontal, vertical or diagonal.

Features

Main characteristics

Type	VZO15	VZO20	VZO25	VZO40	VZO50
Nominal diameter, mm	15	20	25	40	50
The diameter of the thread entry and exit, inches
Nominal pressure, atm	Threaded connections - 16 bar, flanged - 25or 40 atm
Maximum temperature, C	130°C or 10°C
Maximum flow rate in l / h	600	1500	3000	9000	30000
Prolonged consumption, l / h	400	1000	2000	6000	20000
Minimum consumption, l / h	>10	30	75	225	750
Launch at, l/h (about)	4	12	30	90	300
Maximum measured error of flow,%	±1%
Frequency	±0,2%
Scale interval, l	0,01	0,1	0,1	0,1	1
Maximum value of m3	1000	10000	10000	10000	100000
Duration of registration, at nominal flow to zero, hours	2500	10000	5000	1667	500
Pulse value, l:
Inductive output	0,01	0,01	0,1	0,1	1
Reed chain output	0,1		1	1<	10
Inductive output pulse frequency in Hz
At maximum flow rate	16,667	41,66	8,333	25,000	8,333<
At minimum flow rate	0,278	0,833	0,208	0,625	0,208

Overall dimensions

mm	VZO15	VZO20	VZO25	VZO40	VZO50
Length	165	165	190	300	350
Width	105	105	130	210	280
	Type 130 °C
height	106	115	142	235	291
height - RV	130	139	166	259	315
height - IN	185	194	221	273	3
	Type 180 °C
height	147	156	183	235	91
height -RV	171	180	207	259	315
height - IN	225	234	261	313	369

Advantages

Benefits:

- Displays the accumulated consumption in liters with an error of ± 1% of the passed volume of fuel.

- Conveniently mounted in any convenient position for reading.

- Insensitive to vibrations.

Modifications

CONTOIL ® VZOA 15-50

Series VZOA meters 15, 20, 25, 40, 50 mm is designed to power locomotives and river vessels, where it is necessary to consider both the direct flow of fuel to the engine, and the return from the engine to the tank. These counters are of a higher class of accuracy (error 0.5%), at extra cost pairwise selection of flow meters is possible, at which error in the measurement between the two meters is almost nonexistent. Furthermore, additional calibration is performed in the specified measurement range, which reduces error to 0.1%.

Typical connection scheme:

Equipment

RV - output

RV Reed chain pulser integrated with the counting mechanism. It is designed primarily for remote totalization. For other applications, preferably inductive pulser IN.

RV designation indicates that the meter has a pulsed output

Switching element	Reed switch with dry contact (inert gas)
Switching voltage	Up to 48 VAC / VDC, safety class SELV
Switching current	Maximum 2 W
Power switch	Maximum 50 mA
Starting time	50% ±10%
Operating temperature	-10 °C…+70 °C
Protection class	IP65

IN - Output

Inductive pulse transmitter for industrial applications. Probe with plug.

IN designation indicates that the meter has an inductive output

Switching element	Reed switch with dry contact (inert gas)
Switching voltage	Up to 48 VAC / VDC, safety class SELV
Switching current	Maximum 2 W
Power switch	Maximum 50 mA
Starting time	50% ±10%
Operating temperature	-10 °C…+70 °C
Protection class	IP65

The optional Model adds Reed pulser for remote reading (series RV).

Entering the adder:

voltage - max 48 V AC / DC

current -50 mA, (47 ohms / 0,5 W)

3 m cable, two conductor, section 0.14 mm2

Counters can be additionally equipped with inductive pulse output for remote data transmission to more complex automated control systems

(Series IN).