Delta Controls DPR-2000 - Manual (Page 19)

A 17 IOM-DPCDPR-A: FEB 2014
7.4. Mechanical Vibration, Corrosive Media.
7.4.1. Transmitters should correctly work with vibrations with amplitudes to 1,6 mm and accelerations to 4g.
If strong vibrations are carried via the pressure line and disturb of measuring, use should be made of elastic
pulse lines or transmitters with a remote diaphragm seal.
7.4.2. Transmitters should not be installed in places where the diaphragm, made of 316L steel
00H17N14M2), would be subject to corrosion by the medium being measured. If possible, transmitters
with diaphragms made of Hastelloy C276 should be used, or other means of protection applied (e.g. in
the form of a separating liquid) or transmitters with diaphragm seals adapted for measuring aggressive
mediums according to “DIAPHRAGM SEALS” catalogue cards should be used).
8. INSTALLATION AND MECHANICAL CONNECTIONS
The DPC..., DPR... transmitters can operate in any position.
When installed on an object with a high-temperature medium, it is advantageous to mount the transmitter
in a horizontal position or downwards, in such a way that the transmitter is kept away from the rising hot
air.
For the small measurement ranges, the reading can be affected by the transmitter position, and by the
impulse lines configuration, or the way in which they are filled with liquid. This error can be corrected
using the zero-setting function.
8.1. DPC... Installation and connections
8.1.1. The DPC... transmitters can be mounted directly on the rigid impulse lines.
For used connectors as in figures 5a, 6a and 7a, it is recommended that connection sockets be used as shown
in figure 5b, 6b, 7b or 7c. It is recommended that sockets labeled “Socket CG1” and „Socket CG1/2” Fig. 8 are
used for CG1 and CG1/2 connections, respectively.
Besides, there are adapters for standard DIN50, (DIN40, DIN25, Clamp2”, Clamp1,5”, Clamp1”) type connections
provided for readouts carried out in aseptic conditions using transmitters with CM30x2 connection.
There are gaskets provided for every transmitter with P, CM30x2, CG1, CG1/2 and GP type connections.
The gasket material is selected based on the pressure value, temperature and the type of the medium.
8.1.2. If the pressure is applied via a flexible plastic tube, the transmitter should be mounted on a support with
Red Ø6-M reduction.
The types of the impulse tubes (Fig.21) are to be selected depending on the pressure measured value and the
medium temperature.
8.1.3. Tighten the transmitter in the socket with a torque suitable for the type of the gasket used and the
pressure measured.
8.1.4. The DPC… transmitter can be installed using a universal “AL” holder allowing to mount the transmitter in
any position on the support or a horizontal or vertical pipe Ш35... Ш65 (Fig. 16).
8.2. DPR... Installation and connections
8.2.1. The DPR … transmitters can be mounted directly on rigid impulse lines.
To connect the transmitter basic versions, with two M20 x 1.5 connectors (P-type connector), can use (for
example) straight connecting elements with C type nuts. If elastic impulse lines are used, the transmitter should
be additionally fastened to a pipe, panel or supporting construction.
8.2.2. The DPR-2000ALW and DPR-2200ALW can be installed using the ø25 Fastener (fig.11) on a ø25 pipe
or on a flat surface using an angle bracket.
8.2.3. The DPR-2000ALW with connecting cover (C-type connector) (fig.9) are designed for installation on
3-valve or 5-
valve manifolds to a 2” pipe or to a flat surface using “C-2” holder (fig.12), (fig.13).
8.3. DPR-2000GALW. Installation and connections
8.3.1. The “economy” version of the DPR-2000G transmitter can be mounted on a wall, panel or other stable
construction, using a clamp with Ø9 holes (Fig.17). The transmitter is fitted with connectors which fit to a Ø6x1
elastic impulse tube. When the measuring impulse is transmitted via a metal terminal with M20 x 1.5 connector,
an adapter is used between the M20 x 1.5 thread and the Ø6x1 terminal.
Transmitters should be installed in a vertical position. The way of impulse line leading should enable the
vapour flowing towards the pipeline. Where there is a significant difference between the height at which the
transmitter is mounted and the height of the impulse source, particularly if the measurement range is small, the
reading may fluctuate depending on the temperature difference between the impulse lines. This effect can be
reduced by ensuring that the impulse lines run side by side.
i