GEMS SENSORS & CONTROLS

OPERATING & INSTALLATION INSTRUCTIONS

PSIBAR

SERIES 1200/1600

PLEASE READ CAREFULLY BEFORE INSTALLING

Part Number: 560550-0065 Issue: D

INTRODUCTION

Series 1200/1600 high output pressure transducers and transmitters are fitted with an Asic

providing various optional (at time of order) voltage outputs, and a 4-20mA current output

capable of being used in control and indicating loops without further amplification.

Series 1200/1600 conform with the essential protection requirements of the EMC Directive

2004/108/EC amended by certified type testing to BS EN 61326-1 and BS EN 61326-2-3

Series 1200/1600 with the CE0086 mark also complies with the requirements of the Pressure

Equipment Safety Regulations 2016 and can be used as part of a safety-related system on

Category IV pressure equipment.

HAZARDOUS PRODUCTS

The Consumer Protection Act of 1987, Section 6 of the Health and Safety at Work Act 1974 and

the Control of Substances Hazardous to Health Regulations 1988 require that we advise

recipients and users of our products of any potential hazards associated with their storage,

handling or use.

The products which our Company supplies may be classified as Electrical, Electro-Mechanical

and Electronic equipment.

These products are tested and supplied in accordance with our published specifications or

individual special requirements that are agreed in writing at time of order. They are constructed

so as not to affect adversely the safety of persons and property when properly installed,

maintained and used by qualified personnel, in the applications for which they were designed and

manufactured.

Conformity with the requirements of the CE mark only applies when the installation

conditions described in these instructions have been met. For units supplied without a

cable assembly connection to the transducer must be accomplished using Gems Sensors

approved cable. See APPROVED CABLE section.

GENERAL

* Transducer should not be subjected to greater than the maximum allowable pressure

(P.S.)

/ Temperature (T.S) as defined on the transducer label.

* Transducer should not be subjected to mechanical impact.

* In the event of fire the end user must ensure that the system pressure is vented to a safe

area.

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* The effects of decomposition of unstable fluids should be considered by the user when

placing this device in service.

* The pressure transducer has no means of draining or venting, this must be performed by

another component in the end users system.

* Pressure range must be compatible with the maximum pressure being measured.

* Pressure media must be compatible with the transducer/transmitter wetted parts listed in

these instructions.

* Liquid must not be allowed to freeze in the pressure port.

* The gasket must be fitted under the electrical connector.

MECHANICAL INSTALLATION

Mounting: Pressure Transducer is designed to be attached by the coupling thread only. Omni-

directional, self supported directly into the pipework. Use a 19mm AF (3/4") spanner on the

hexagon provided to apply a maximum torque of 15.8Nm.

The Customer must ensure that the

pressure seal is suitable for the application. If in doubt contact Gems Sensors.

ELECTRICAL INSTALLATION

All types with the CE Mark include suppression devices providing transient protection to

EN 61000-4-2 and EN 61000-4-4. Conformity with the requirements of the CE mark only

applies when connection is made with Gems Sensors approved cable, see APPROVED CABLE

section, and is connected with the screen of the cable earthed at the instrumentation end. If an

'Earth Loop' problem is encountered when the body of the unit is earthed by the pipework it is

permissible to remove the cable screen from the instrumentation earth.

APPROVED CABLE

Gems sensors uses cables comprising 2, 3 or 4 colour-coded cores, enclosed by an aluminised

polyester screen where the screen is in intimate contact with a separate drain wire. The outer

sheath is chrome PVC and overall diameter is approximately 4 mm.

OPERATION

Having installed the transducers as instructed, they are ready for use. The transducer should not

be removed whilst the system is at pressure. Before applying power, check that the correct

polarity and excitation levels are being applied. See Table 1 for electrical connections.

CALIBRATION

Transducers are calibrated to the datum requested at time of order; this can be identified by the

sixth letter of the identification code as follows:-

G - Gauge datum vented to atmosphere via the electrical connector or cable

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