ENMET EX-5175 User Manual

Page 6

EX-5175-EC

ENMET Corporation

2.0 Features of the EX-5175-EC

See Figure 1 for location of features:

Feature Description

Display

LCD: Indicates the level of gas detected by sensor

Gain Potentiometer
(POT)

POT 1: Display contrast adjustment
POT 2:
POT 3:

Not Used, Do not adjust

POT 4:

Visual Alarms

LED indicators:

Power / Fault Indicator LED, Green / Red
Alarm (3) Indicator Red LED, user adjustable

Magnetic Switches

ENU

: Advances the instrument display through menus (Zero, Span, Exit)

ELECT

: Selects the Zero, Span, Exit menu or sets proper calibration values for Zero or Span

Sensor

For sensing gas at

PPM

or LEL levels, see Table 3 for sensor types

Magnetic switches control the instrument maintenance functions. The switch locations are indicated by M

ENU

and

ELECT

. A magnetic field pulse is applied by momentarily putting the end of the magnet in proximity to the switch

and then removing it. Referred to as tap. Since the magnetic field penetrates the window, the enclosure cover is not
removed in order to perform calibration.

Three alarm points are preprogrammed into the EX-5175-EC sensor/transmitters. At each alarm point, an LED on the
front panel is activated. These internal alarm settings are independent of the 4-20mA output alarm values that can be
set at a controller.

Figure 1: EX-5175-EC Features

POT 3

See Note

POT 4

See Note

POT 2

See Note

POT 1

Internal PCB View

Note: POT 2, POT 3and POT 4

are not used, Do Not Adjust

3 Alarm
Indicators

Power /Fault

Indicator

Display

ENU

Magnetic switch

ELECT

Magnetic switch

Sensor

External View

Menu

Select