Loop Powered Indicator

DS3102

© TT electronics plc

Issue A

07/2018 Page 1

TT Electronics | Roxspur Measurement & Control

2 Downgate Drive, Sheffield, South Yorkshire, S4 8BT, UK |Ph: +44 (0) 114-244-2521

www.ttelectronics.com | RoxspurSales@ttelectronics.com

General Note

TT Electronics reserves the right to make changes in product specification without

notice or liability. All information is subject to TT Electronics’ own data and is

considered accurate at time of going to print.

Description:

The GEN500 is a loop powered indicator which is designed for series connection into a 4/20mA current loop and

to display digitally, in engineering units, the process variable represented by the current flow. The GEN500 needs

only 1 volt from the loop. The GEN500X is a version approved for hazardous area use and requires 1.6 volts from

the loop. Style Fand G housing will accommodate any suitable in head transmitter.

INSTALLATION & WIRING

General Precautions

a) The indicator should remain in its packaging prior to installation and stored in a dry environment not subject

to extremes of temperature.

b) The indicator should not be installed adjacent to switch gear, electromagnetic starters, contactors, thyristor

power units or motors.

c) The signal cables connected to the indicator should not run in the same trunking as power cables. Screened

cables are recommended at all times.

d) The electronic circuit will be affected by moisture and in some cases be damaged beyond repair. Always

ensure the case is assembled correctly.

in some cases be damaged beyond repair.

Always ensure the case is assembled correctly.

e) On the MD500X the following precautions MUST be observed when used in hazardous areas:

1) The electrical circuit in the hazardous area must be capable of withstanding an A.C. test voltage of

500V RMS to earth or frame of the apparatus.

2) The capacitance and either the inductance or the inductance to resistance (L/R) ratio of the hazardous

area cables must not exceed the parameters specified in the schedule of the appropriate safety barrier

certificate and/or systems certificate.

3) The installation must comply with requirement as specified in BS5345 Part 4 1977.

Features:



Large 20mm LCD display



Only 1 volt from loop



Loop powered



Stainless Steel case 100mm dial



Sensor / wall / panel mount



IP65 enclosure