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Brief User Guide
This is a quick guide to connecting the instrument for the conven-
ience of personnel who are familiar with this type of product.
More comprehensive instructions are contained later in this
manual:
1. Connect a clean air supply of about 2.0 bar (30 psig for
the 3-15 psig output model, or 2.4 bar (35 psig) for the
6-30 psig output model) to the IN port (1/4" NPT).
2. Connect a pressure gauge or actuator to the OUT port.
DO NOT use PTFE tape or similar to seal the ports. Use
a minimum of soft setting anaerobic compound, e.g.
Loctite Hydraulic Seal 542.
3. Unscrew the lid to obtain access to the terminals.
The cable will need to be sealed by an approved gland for
explosion-proof installation.
The second un-used conduit entry must be sealed with
an explosion-proof blanking plug.
4. Connect a 4-20mA current source, either through the Jack-
Plug source or Terminal connections. Ensure that it can
supply at least 6.5V at 20mA. Check for correct polarity.
3.5mm Jack Socket
Alternative Power
Supply & Monitor
1/2"NPT or M20
Conduit Entry
JACK SOCKET: TO CALIBRATE UNIT ON
INSTALLATION USING A 4-20MA INPUT SIGNAL.
WHEN USING JACK PLUG A SIGNAL DOES NOT HAVE
TO BE SUPPLIED VIA THE TERMINAL BLOCK. THE
INPUT SIGNAL CAN BE MONITORED THROUGH THE
JACK PLUG SOCKET WHEN UNIT IS IN OPERATION.
2 | BHGE
Span
Zero
Tight Shut Off
Internal Earth
4-20mA Input Terminals
DO NOT use a voltage source; it will irreversibly damage
the converter.
5. Switch on the air supply and current source and allow a
few seconds stabilisation time. Adjust span and zero via
the trimpots if necessary.
If the instrument fails to operate refer to the Simple Functional
Checks.
General Description
These converters are precision electronic pressure controllers
designed for continuous process control applications. The units
operate a closed loop system incorporating a feedback sensor
ensuring long-term stability and high accuracy performance,
with 'fail-safe' operation, i.e. the output falls to a low pressure
upon failure of the loop current.
These instruments combine substantial flow capacity, with
the ability to give precise control into closed volume 'dead end'
applications.
The instrument has been designed to withstand the rigours
of industrial environments; such as shock, vibration and
positional effects. As with any other precision instrument
dropping the unit onto a hard surface may result in shifts in
calibration or possibly permanent damage. The unit may be
mounted directly upon a control valve. A mounting bracket is
provided for surface mounting, or the instrument may be fixed
directly to rigid pipework.
The electronics are enclosed within a watertight housing,
which is suitable for outdoor use if a suitable cable gland is
used. The lid should be firmly tightened, the use of a tool for
this purpose is not recommended.
Lid Locking
External Earth
1/2"NPT or M20
Conduit Entry
Air Filter;
DO NOT REMOVE WHEN PRESSURIZED.
DO NOT USE WITH FILTER REMOVED.
Air Filter. BS2000 with 98% efficiency
@ 2µM with water and oil absorption.
Figure 1
© 2019 Baker Hughes, a GE company. All Rights Reserved.
External Earth
1/8" Gauge Port
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